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import qemu-kvm-4.2.0-34.module+el8.3.0+9828+7aab3355.3

This commit is contained in:
CentOS Sources 2021-02-16 02:43:20 -05:00 committed by Andrew Lukoshko
commit 1661622e08
424 changed files with 90813 additions and 0 deletions
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1
.gitignore vendored Normal file
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SOURCES/qemu-4.2.0.tar.xz

1
.qemu-kvm.metadata Normal file
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b27aa828a8457bd8551ae3c81b80cc365e1f6bfe SOURCES/qemu-4.2.0.tar.xz

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SOURCES/0005-Initial-redhat-build.patch Normal file
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From 4df157781801c50224373be57fa3c8c3741c0535 Mon Sep 17 00:00:00 2001
From: Miroslav Rezanina <mrezanin@redhat.com>
Date: Fri, 12 Oct 2018 07:31:11 +0200
Subject: Initial redhat build
This patch introduces redhat build structure in redhat subdirectory. In addition,
several issues are fixed in QEMU tree:
- Change of app name for sasl_server_init in VNC code from qemu to qemu-kvm
- As we use qemu-kvm as name in all places, this is updated to be consistent
- Man page renamed from qemu to qemu-kvm
- man page is installed using make install so we have to fix it in qemu tree
- Use "/share/qemu-kvm" as SHARE_SUFFIX
- We reconfigured our share to qemu-kvm to be consistent with used name
This rebase includes changes up to qemu-kvm-4.1.0-18.el8
Rebase notes (3.1.0):
- added new configure options
Rebase notes (4.0.0):
- Added dependency to perl-Test-Harness (upstream)
- Added dependency to python3-sphinx (upstream)
- Change location of icons (upstream)
- Remove .desktop file (added upstream)
- Added qemu-trace-stap (added upstream)
- Removed elf2dmp (added upstream)
- Remove .buildinfo
- Added pvh.bin rom (added upstream)
- Added interop documentation files
- Use python module instead of qemu.py (upstream)
Rebase notes (4.1.0):
- Remove edk2 files generated by build
- Switch to rhel-8.1-candidate build target
- Remove specs documentation
- Switched from libssh2 to libssh
- Add rc0 tarball usage hacks
- Added BuildRequires for wget, rpm-build and python3-sphinx
- Removed new unpacked files
- Update configure line to use new options
Rebase notes (4.2.0):
- Disable iotest run during make check
- README renamed to README.rst (upstream)
- Removed ui-spice-app.so
- Added relevant changes from "505f7f4 redhat: Adding slirp to the exploded tree"
- Removed qemu-ga.8 install from spec file - installed by make
- Removed spapr-rtas.bin (upstream)
- Require newer SLOF (20191022)
Merged patches (3.1.0):
- 01f0c9f RHEL8: Add disable configure options to qemu spec file
- Spec file cleanups
Merged patches (4.0.0):
- aa4297c Add edk2 Requires to qemu-kvm
- d124ff5779 Fixing brew build target
- eb204b5 Introduce the qemu-kvm-tests rpm
- 223cf0c Load kvm module during boot (partial)
Merged patches (4.1.0):
- ebb6e97 redhat: Fix LOCALVERSION creation
- b0ab0cc redhat: enable tpmdev passthrough (not disabling tests)
- 7cb3c4a Enable libpmem to support nvdimm
- 8943607 qemu-kvm.spec: bump libseccomp >= 2.4.0
- 27b7c44 rh: set CONFIG_BOCHS_DISPLAY=y for x86 (partial)
- e1fe9fe x86_64-rh-devices: enable TPM emulation (partial)
Merged patches (4.2.0):
- 69e1fb2 enable virgla
- d4f6115 enable virgl, for real this time ...
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
.gitignore | 1 +
Makefile | 3 +-
configure | 1 +
os-posix.c | 2 +-
redhat/Makefile | 82 +
redhat/Makefile.common | 51 +
redhat/README.tests | 39 +
redhat/qemu-kvm.spec.template | 2434 +++++++++++++++++++++++++++++
redhat/scripts/process-patches.sh | 7 +-
tests/Makefile.include | 2 +-
ui/vnc.c | 2 +-
11 files changed, 2615 insertions(+), 9 deletions(-)
create mode 100644 redhat/Makefile
create mode 100644 redhat/Makefile.common
create mode 100644 redhat/README.tests
create mode 100644 redhat/qemu-kvm.spec.template
diff --git a/Makefile b/Makefile
index b437a346d7..086727dbb9 100644
--- a/Makefile
+++ b/Makefile
@@ -512,6 +512,7 @@ CAP_CFLAGS += -DCAPSTONE_HAS_ARM
CAP_CFLAGS += -DCAPSTONE_HAS_ARM64
CAP_CFLAGS += -DCAPSTONE_HAS_POWERPC
CAP_CFLAGS += -DCAPSTONE_HAS_X86
+CAP_CFLAGS += -Wp,-D_GLIBCXX_ASSERTIONS
.PHONY: capstone/all
capstone/all: .git-submodule-status
@@ -826,7 +827,7 @@ install-doc: $(DOCS) install-sphinxdocs
$(INSTALL_DATA) docs/interop/qemu-qmp-ref.txt "$(DESTDIR)$(qemu_docdir)"
ifdef CONFIG_POSIX
$(INSTALL_DIR) "$(DESTDIR)$(mandir)/man1"
- $(INSTALL_DATA) qemu.1 "$(DESTDIR)$(mandir)/man1"
+ $(INSTALL_DATA) qemu.1 "$(DESTDIR)$(mandir)/man1/qemu-kvm.1"
$(INSTALL_DIR) "$(DESTDIR)$(mandir)/man7"
$(INSTALL_DATA) docs/interop/qemu-qmp-ref.7 "$(DESTDIR)$(mandir)/man7"
$(INSTALL_DATA) docs/qemu-block-drivers.7 "$(DESTDIR)$(mandir)/man7"
diff --git a/configure b/configure
index 6099be1d84..16564f8ccc 100755
--- a/configure
+++ b/configure
@@ -2424,6 +2424,7 @@ if test "$seccomp" != "no" ; then
seccomp="no"
fi
fi
+
##########################################
# xen probe
diff --git a/os-posix.c b/os-posix.c
index 86cffd2c7d..1c9f86768d 100644
--- a/os-posix.c
+++ b/os-posix.c
@@ -83,7 +83,7 @@ void os_setup_signal_handling(void)
/* Find a likely location for support files using the location of the binary.
For installed binaries this will be "$bindir/../share/qemu". When
running from the build tree this will be "$bindir/../pc-bios". */
-#define SHARE_SUFFIX "/share/qemu"
+#define SHARE_SUFFIX "/share/qemu-kvm"
#define BUILD_SUFFIX "/pc-bios"
char *os_find_datadir(void)
{
diff --git a/tests/Makefile.include b/tests/Makefile.include
index 8566f5f119..b483790cf3 100644
--- a/tests/Makefile.include
+++ b/tests/Makefile.include
@@ -1194,7 +1194,7 @@ check-acceptance: check-venv $(TESTS_RESULTS_DIR)
check-qapi-schema: check-tests/qapi-schema/frontend check-tests/qapi-schema/doc-good.texi
check-qtest: $(patsubst %,check-qtest-%, $(QTEST_TARGETS))
check-block: $(patsubst %,check-%, $(check-block-y))
-check: check-block check-qapi-schema check-unit check-softfloat check-qtest check-decodetree
+check: check-qapi-schema check-unit check-softfloat check-qtest check-decodetree
check-clean:
rm -rf $(check-unit-y) tests/*.o $(QEMU_IOTESTS_HELPERS-y)
rm -rf $(sort $(foreach target,$(SYSEMU_TARGET_LIST), $(check-qtest-$(target)-y)) $(check-qtest-generic-y))
diff --git a/ui/vnc.c b/ui/vnc.c
index 87b8045afe..ecf6276f5b 100644
--- a/ui/vnc.c
+++ b/ui/vnc.c
@@ -3987,7 +3987,7 @@ void vnc_display_open(const char *id, Error **errp)
#ifdef CONFIG_VNC_SASL
if (sasl) {
- int saslErr = sasl_server_init(NULL, "qemu");
+ int saslErr = sasl_server_init(NULL, "qemu-kvm");
if (saslErr != SASL_OK) {
error_setg(errp, "Failed to initialize SASL auth: %s",
--
2.21.0

994
SOURCES/0006-Enable-disable-devices-for-RHEL.patch Normal file
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@ -0,0 +1,994 @@
From 67511676246cce57becbd2dcf5abccf08d9ef737 Mon Sep 17 00:00:00 2001
From: Miroslav Rezanina <mrezanin@redhat.com>
Date: Mon, 11 Jan 2016 11:53:33 +0100
Subject: Enable/disable devices for RHEL
This commit adds all changes related to changes in supported devices.
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Rebase notes (qemu 3.1.0)
- spapr_rng disabled in default_config
- new hyperv.mak in default configs
- Move changes from x86_64-softmmu.mak to i386-softmmu.mak
- Added CONFIG_VIRTIO_MMIO to aarch64-softmmu.mak
- Removed config_vga_isa.c changes as no longer needed
- Removed new devices
Rebase notes (4.0.0):
- Added CONFIG_PCI_EXPRESS_GENERIC_BRIDGE for aarch64-softmmu.mak
- Added CONFIG_ARM_VIRT for aarch64-softmmu.mak
- Switch to KConfig (upstream)
- Using device whitelist + without-defualt-devices option
Rebase notes (4.1.0):
- Added CONFIG_USB_OHCI_PCI for ppc64
- Added CONFIG_XIVE_KVM for ppc64
- Added CONFIG_ACPI_PCI for x86_64
- Added CONFIG_SEMIHOSTING for aarch64
- Cleanup aarch64 devices
- Do not build a15mpcore.c
- Removed ide-isa.c stub file
- Use CONFIG_USB_EHCI_PCI on x86_64 (new upstream)
Rebase notes (4.2.0-rc0):
- Use conditional build for isa-superio.c (upstream change)
- Rename PCI_PIIX to PCI_I440FX (upstream change)
Rebase notes (4.2.0-rc3):
- Disabled ccid-card-emulated (patch 92566)
- Disabled vfio-pci-igd-lpc-bridge (patch 92565)
Merged patches (qemu 3.1.0):
- d51e082 Re-enable CONFIG_HYPERV_TESTDEV
- 4b889f3 Declare cirrus-vga as deprecated
- b579d32 Do not build bluetooth support
- 3eef52a Disable CONFIG_IPMI and CONFIG_I2C for ppc64
- 9caf292 Disable CONFIG_CAN_BUS and CONFIG_CAN_SJA1000
Merged patches (4.1.0):
- 20a51f6 fdc: Revert downstream disablement of device "floppy"
- f869cc0 fdc: Restrict floppy controllers to RHEL-7 machine types
- 5909721 aarch64: Compile out IOH3420
- 27b7c44 rh: set CONFIG_BOCHS_DISPLAY=y for x86 (partial)
- 495a27d x86_64-rh-devices: add missing TPM passthrough
- e1fe9fe x86_64-rh-devices: enable TPM emulation (partial)
Merged patches (4.2.0):
- f7587dd RHEL: disable hostmem-memfd
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
Makefile.objs | 4 +-
backends/Makefile.objs | 3 +-
default-configs/aarch64-rh-devices.mak | 20 +++++
default-configs/aarch64-softmmu.mak | 10 ++-
default-configs/ppc64-rh-devices.mak | 32 ++++++++
default-configs/ppc64-softmmu.mak | 8 +-
default-configs/rh-virtio.mak | 10 +++
default-configs/s390x-rh-devices.mak | 15 ++++
default-configs/s390x-softmmu.mak | 4 +-
default-configs/x86_64-rh-devices.mak | 100 +++++++++++++++++++++++++
default-configs/x86_64-softmmu.mak | 4 +-
hw/acpi/ich9.c | 4 +-
hw/arm/Makefile.objs | 2 +-
hw/block/fdc.c | 10 +++
hw/bt/Makefile.objs | 4 +-
hw/cpu/Makefile.objs | 5 +-
hw/display/Makefile.objs | 5 +-
hw/display/cirrus_vga.c | 3 +
hw/ide/piix.c | 5 +-
hw/input/pckbd.c | 2 +
hw/net/e1000.c | 2 +
hw/pci-host/i440fx.c | 4 +
hw/ppc/spapr_cpu_core.c | 2 +
hw/usb/Makefile.objs | 4 +-
hw/vfio/pci-quirks.c | 9 +++
hw/vfio/pci.c | 5 ++
qemu-options.hx | 7 +-
redhat/qemu-kvm.spec.template | 5 +-
target/arm/cpu.c | 4 +-
target/i386/cpu.c | 35 +++++++--
target/ppc/cpu-models.c | 10 +++
target/s390x/cpu_models.c | 3 +
target/s390x/kvm.c | 8 ++
util/memfd.c | 2 +-
vl.c | 8 +-
35 files changed, 317 insertions(+), 41 deletions(-)
create mode 100644 default-configs/aarch64-rh-devices.mak
create mode 100644 default-configs/ppc64-rh-devices.mak
create mode 100644 default-configs/rh-virtio.mak
create mode 100644 default-configs/s390x-rh-devices.mak
create mode 100644 default-configs/x86_64-rh-devices.mak
diff --git a/Makefile.objs b/Makefile.objs
index 11ba1a36bd..fcf63e1096 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -65,8 +65,8 @@ common-obj-y += replay/
common-obj-y += ui/
common-obj-m += ui/
-common-obj-y += bt-host.o bt-vhci.o
-bt-host.o-cflags := $(BLUEZ_CFLAGS)
+#common-obj-y += bt-host.o bt-vhci.o
+#bt-host.o-cflags := $(BLUEZ_CFLAGS)
common-obj-y += dma-helpers.o
common-obj-y += vl.o
diff --git a/backends/Makefile.objs b/backends/Makefile.objs
index f0691116e8..f328d404bf 100644
--- a/backends/Makefile.objs
+++ b/backends/Makefile.objs
@@ -16,4 +16,5 @@ endif
common-obj-$(call land,$(CONFIG_VHOST_USER),$(CONFIG_VIRTIO)) += vhost-user.o
-common-obj-$(CONFIG_LINUX) += hostmem-memfd.o
+# RHEL: disable memfd
+# common-obj-$(CONFIG_LINUX) += hostmem-memfd.o
diff --git a/default-configs/aarch64-rh-devices.mak b/default-configs/aarch64-rh-devices.mak
new file mode 100644
index 0000000000..a1ed641174
--- /dev/null
+++ b/default-configs/aarch64-rh-devices.mak
@@ -0,0 +1,20 @@
+include rh-virtio.mak
+
+CONFIG_ARM_GIC_KVM=y
+CONFIG_ARM_SMMUV3=y
+CONFIG_ARM_V7M=y
+CONFIG_ARM_VIRT=y
+CONFIG_EDID=y
+CONFIG_PCIE_PORT=y
+CONFIG_PCI_DEVICES=y
+CONFIG_PCI_TESTDEV=y
+CONFIG_PFLASH_CFI01=y
+CONFIG_SCSI=y
+CONFIG_SEMIHOSTING=y
+CONFIG_USB=y
+CONFIG_USB_XHCI=y
+CONFIG_VFIO=y
+CONFIG_VFIO_PCI=y
+CONFIG_VIRTIO_MMIO=y
+CONFIG_VIRTIO_PCI=y
+CONFIG_XIO3130=y
diff --git a/default-configs/aarch64-softmmu.mak b/default-configs/aarch64-softmmu.mak
index 958b1e08e4..8f6867d48a 100644
--- a/default-configs/aarch64-softmmu.mak
+++ b/default-configs/aarch64-softmmu.mak
@@ -1,8 +1,10 @@
# Default configuration for aarch64-softmmu
# We support all the 32 bit boards so need all their config
-include arm-softmmu.mak
+#include arm-softmmu.mak
-CONFIG_XLNX_ZYNQMP_ARM=y
-CONFIG_XLNX_VERSAL=y
-CONFIG_SBSA_REF=y
+#CONFIG_XLNX_ZYNQMP_ARM=y
+#CONFIG_XLNX_VERSAL=y
+#CONFIG_SBSA_REF=y
+
+include aarch64-rh-devices.mak
diff --git a/default-configs/ppc64-rh-devices.mak b/default-configs/ppc64-rh-devices.mak
new file mode 100644
index 0000000000..35f2106d06
--- /dev/null
+++ b/default-configs/ppc64-rh-devices.mak
@@ -0,0 +1,32 @@
+include rh-virtio.mak
+
+CONFIG_DIMM=y
+CONFIG_MEM_DEVICE=y
+CONFIG_PCI=y
+CONFIG_PCI_DEVICES=y
+CONFIG_PCI_TESTDEV=y
+CONFIG_PSERIES=y
+CONFIG_SCSI=y
+CONFIG_SPAPR_VSCSI=y
+CONFIG_TEST_DEVICES=y
+CONFIG_USB=y
+CONFIG_USB_OHCI=y
+CONFIG_USB_OHCI_PCI=y
+CONFIG_USB_SMARTCARD=y
+CONFIG_USB_STORAGE_BOT=y
+CONFIG_USB_XHCI=y
+CONFIG_USB_XHCI_NEC=y
+CONFIG_VFIO=y
+CONFIG_VFIO_PCI=y
+CONFIG_VGA=y
+CONFIG_VGA_PCI=y
+CONFIG_VHOST_USER=y
+CONFIG_VIRTIO_PCI=y
+CONFIG_VIRTIO_VGA=y
+CONFIG_WDT_IB6300ESB=y
+CONFIG_XICS=y
+CONFIG_XICS_KVM=y
+CONFIG_XICS_SPAPR=y
+CONFIG_XIVE=y
+CONFIG_XIVE_SPAPR=y
+CONFIG_XIVE_KVM=y
diff --git a/default-configs/ppc64-softmmu.mak b/default-configs/ppc64-softmmu.mak
index cca52665d9..fec354f327 100644
--- a/default-configs/ppc64-softmmu.mak
+++ b/default-configs/ppc64-softmmu.mak
@@ -1,10 +1,12 @@
# Default configuration for ppc64-softmmu
# Include all 32-bit boards
-include ppc-softmmu.mak
+#include ppc-softmmu.mak
# For PowerNV
-CONFIG_POWERNV=y
+#CONFIG_POWERNV=y
# For pSeries
-CONFIG_PSERIES=y
+#CONFIG_PSERIES=y
+
+include ppc64-rh-devices.mak
diff --git a/default-configs/rh-virtio.mak b/default-configs/rh-virtio.mak
new file mode 100644
index 0000000000..94ede1b5f6
--- /dev/null
+++ b/default-configs/rh-virtio.mak
@@ -0,0 +1,10 @@
+CONFIG_VIRTIO=y
+CONFIG_VIRTIO_BALLOON=y
+CONFIG_VIRTIO_BLK=y
+CONFIG_VIRTIO_GPU=y
+CONFIG_VIRTIO_INPUT=y
+CONFIG_VIRTIO_INPUT_HOST=y
+CONFIG_VIRTIO_NET=y
+CONFIG_VIRTIO_RNG=y
+CONFIG_VIRTIO_SCSI=y
+CONFIG_VIRTIO_SERIAL=y
diff --git a/default-configs/s390x-rh-devices.mak b/default-configs/s390x-rh-devices.mak
new file mode 100644
index 0000000000..c3c73fe752
--- /dev/null
+++ b/default-configs/s390x-rh-devices.mak
@@ -0,0 +1,15 @@
+include rh-virtio.mak
+
+CONFIG_PCI=y
+CONFIG_S390_CCW_VIRTIO=y
+CONFIG_S390_FLIC=y
+CONFIG_S390_FLIC_KVM=y
+CONFIG_SCLPCONSOLE=y
+CONFIG_SCSI=y
+CONFIG_TERMINAL3270=y
+CONFIG_VFIO=y
+CONFIG_VFIO_AP=y
+CONFIG_VFIO_PCI=y
+CONFIG_VHOST_USER=y
+CONFIG_VIRTIO_CCW=y
+CONFIG_WDT_DIAG288=y
diff --git a/default-configs/s390x-softmmu.mak b/default-configs/s390x-softmmu.mak
index f2287a133f..3e2e388e91 100644
--- a/default-configs/s390x-softmmu.mak
+++ b/default-configs/s390x-softmmu.mak
@@ -10,4 +10,6 @@
# Boards:
#
-CONFIG_S390_CCW_VIRTIO=y
+#CONFIG_S390_CCW_VIRTIO=y
+
+include s390x-rh-devices.mak
diff --git a/default-configs/x86_64-rh-devices.mak b/default-configs/x86_64-rh-devices.mak
new file mode 100644
index 0000000000..d59b6d9bb5
--- /dev/null
+++ b/default-configs/x86_64-rh-devices.mak
@@ -0,0 +1,100 @@
+include rh-virtio.mak
+
+CONFIG_AC97=y
+CONFIG_ACPI=y
+CONFIG_ACPI_PCI=y
+CONFIG_ACPI_CPU_HOTPLUG=y
+CONFIG_ACPI_MEMORY_HOTPLUG=y
+CONFIG_ACPI_NVDIMM=y
+CONFIG_ACPI_SMBUS=y
+CONFIG_ACPI_VMGENID=y
+CONFIG_ACPI_X86=y
+CONFIG_ACPI_X86_ICH=y
+CONFIG_AHCI=y
+CONFIG_APIC=y
+CONFIG_APM=y
+CONFIG_BOCHS_DISPLAY=y
+CONFIG_DIMM=y
+CONFIG_E1000E_PCI_EXPRESS=y
+CONFIG_E1000_PCI=y
+CONFIG_EDU=y
+CONFIG_FDC=y
+CONFIG_FW_CFG_DMA=y
+CONFIG_HDA=y
+CONFIG_HYPERV=y
+CONFIG_HYPERV_TESTDEV=y
+CONFIG_I2C=y
+CONFIG_I440FX=y
+CONFIG_I8254=y
+CONFIG_I8257=y
+CONFIG_I8259=y
+CONFIG_I82801B11=y
+CONFIG_IDE_CORE=y
+CONFIG_IDE_PCI=y
+CONFIG_IDE_PIIX=y
+CONFIG_IDE_QDEV=y
+CONFIG_IOAPIC=y
+CONFIG_IOH3420=y
+CONFIG_ISA_BUS=y
+CONFIG_ISA_DEBUG=y
+CONFIG_ISA_TESTDEV=y
+CONFIG_LPC_ICH9=y
+CONFIG_MC146818RTC=y
+CONFIG_MEM_DEVICE=y
+CONFIG_NVDIMM=y
+CONFIG_OPENGL=y
+CONFIG_PAM=y
+CONFIG_PC=y
+CONFIG_PCI=y
+CONFIG_PCIE_PORT=y
+CONFIG_PCI_DEVICES=y
+CONFIG_PCI_EXPRESS=y
+CONFIG_PCI_EXPRESS_Q35=y
+CONFIG_PCI_I440FX=y
+CONFIG_PCI_TESTDEV=y
+CONFIG_PCKBD=y
+CONFIG_PCSPK=y
+CONFIG_PC_ACPI=y
+CONFIG_PC_PCI=y
+CONFIG_PFLASH_CFI01=y
+CONFIG_PVPANIC=y
+CONFIG_PXB=y
+CONFIG_Q35=y
+CONFIG_QXL=y
+CONFIG_RTL8139_PCI=y
+CONFIG_SCSI=y
+CONFIG_SERIAL=y
+CONFIG_SERIAL_ISA=y
+CONFIG_SERIAL_PCI=y
+CONFIG_SEV=y
+CONFIG_SGA=y
+CONFIG_SMBIOS=y
+CONFIG_SMBUS_EEPROM=y
+CONFIG_SPICE=y
+CONFIG_TEST_DEVICES=y
+CONFIG_USB=y
+CONFIG_USB_EHCI=y
+CONFIG_USB_EHCI_PCI=y
+CONFIG_USB_SMARTCARD=y
+CONFIG_USB_STORAGE_BOT=y
+CONFIG_USB_UHCI=y
+CONFIG_USB_XHCI=y
+CONFIG_USB_XHCI_NEC=y
+CONFIG_VFIO=y
+CONFIG_VFIO_PCI=y
+CONFIG_VGA=y
+CONFIG_VGA_CIRRUS=y
+CONFIG_VGA_PCI=y
+CONFIG_VHOST_USER=y
+CONFIG_VIRTIO_PCI=y
+CONFIG_VIRTIO_VGA=y
+CONFIG_VMMOUSE=y
+CONFIG_VMPORT=y
+CONFIG_VTD=y
+CONFIG_WDT_IB6300ESB=y
+CONFIG_WDT_IB700=y
+CONFIG_XIO3130=y
+CONFIG_TPM_CRB=y
+CONFIG_TPM_TIS=y
+CONFIG_TPM_EMULATOR=y
+CONFIG_TPM_PASSTHROUGH=y
diff --git a/default-configs/x86_64-softmmu.mak b/default-configs/x86_64-softmmu.mak
index 64b2ee2960..b5de7e5279 100644
--- a/default-configs/x86_64-softmmu.mak
+++ b/default-configs/x86_64-softmmu.mak
@@ -1,3 +1,5 @@
# Default configuration for x86_64-softmmu
-include i386-softmmu.mak
+#include i386-softmmu.mak
+
+include x86_64-rh-devices.mak
diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
index 2034dd749e..ab203ad448 100644
--- a/hw/acpi/ich9.c
+++ b/hw/acpi/ich9.c
@@ -449,8 +449,8 @@ void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm, Error **errp)
static const uint32_t gpe0_len = ICH9_PMIO_GPE0_LEN;
pm->acpi_memory_hotplug.is_enabled = true;
pm->cpu_hotplug_legacy = true;
- pm->disable_s3 = 0;
- pm->disable_s4 = 0;
+ pm->disable_s3 = 1;
+ pm->disable_s4 = 1;
pm->s4_val = 2;
object_property_add_uint32_ptr(obj, ACPI_PM_PROP_PM_IO_BASE,
diff --git a/hw/arm/Makefile.objs b/hw/arm/Makefile.objs
index fe749f65fd..2aa1a9efdd 100644
--- a/hw/arm/Makefile.objs
+++ b/hw/arm/Makefile.objs
@@ -27,7 +27,7 @@ obj-$(CONFIG_VEXPRESS) += vexpress.o
obj-$(CONFIG_ZYNQ) += xilinx_zynq.o
obj-$(CONFIG_SABRELITE) += sabrelite.o
-obj-$(CONFIG_ARM_V7M) += armv7m.o
+#obj-$(CONFIG_ARM_V7M) += armv7m.o
obj-$(CONFIG_EXYNOS4) += exynos4210.o
obj-$(CONFIG_PXA2XX) += pxa2xx.o pxa2xx_gpio.o pxa2xx_pic.o
obj-$(CONFIG_DIGIC) += digic.o
diff --git a/hw/block/fdc.c b/hw/block/fdc.c
index ac5d31e8c1..e925bac002 100644
--- a/hw/block/fdc.c
+++ b/hw/block/fdc.c
@@ -46,6 +46,8 @@
#include "qemu/module.h"
#include "trace.h"
+#include "hw/boards.h"
+
/********************************************************/
/* debug Floppy devices */
@@ -2638,6 +2640,14 @@ static void fdctrl_realize_common(DeviceState *dev, FDCtrl *fdctrl,
int i, j;
static int command_tables_inited = 0;
+ /* Restricted for Red Hat Enterprise Linux: */
+ MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine());
+ if (!strstr(mc->name, "-rhel7.")) {
+ error_setg(errp, "Device %s is not supported with machine type %s",
+ object_get_typename(OBJECT(dev)), mc->name);
+ return;
+ }
+
if (fdctrl->fallback == FLOPPY_DRIVE_TYPE_AUTO) {
error_setg(errp, "Cannot choose a fallback FDrive type of 'auto'");
}
diff --git a/hw/bt/Makefile.objs b/hw/bt/Makefile.objs
index 867a7d2e8a..e678e9ee3c 100644
--- a/hw/bt/Makefile.objs
+++ b/hw/bt/Makefile.objs
@@ -1,3 +1,3 @@
-common-obj-y += core.o l2cap.o sdp.o hci.o hid.o
-common-obj-y += hci-csr.o
+#common-obj-y += core.o l2cap.o sdp.o hci.o hid.o
+#common-obj-y += hci-csr.o
diff --git a/hw/cpu/Makefile.objs b/hw/cpu/Makefile.objs
index 8db9e8a7b3..1601ea93c7 100644
--- a/hw/cpu/Makefile.objs
+++ b/hw/cpu/Makefile.objs
@@ -1,5 +1,6 @@
obj-$(CONFIG_ARM11MPCORE) += arm11mpcore.o
obj-$(CONFIG_REALVIEW) += realview_mpcore.o
obj-$(CONFIG_A9MPCORE) += a9mpcore.o
-obj-$(CONFIG_A15MPCORE) += a15mpcore.o
-common-obj-y += core.o cluster.o
+#obj-$(CONFIG_A15MPCORE) += a15mpcore.o
+common-obj-y += core.o
+# cluster.o
diff --git a/hw/display/Makefile.objs b/hw/display/Makefile.objs
index f2182e3bef..3d0cda1b52 100644
--- a/hw/display/Makefile.objs
+++ b/hw/display/Makefile.objs
@@ -1,8 +1,9 @@
common-obj-$(CONFIG_DDC) += i2c-ddc.o
common-obj-$(CONFIG_EDID) += edid-generate.o edid-region.o
-common-obj-$(CONFIG_FW_CFG_DMA) += ramfb.o
-common-obj-$(CONFIG_FW_CFG_DMA) += ramfb-standalone.o
+# Disabled for Red Hat Enterprise Linux
+#common-obj-$(CONFIG_FW_CFG_DMA) += ramfb.o
+#common-obj-$(CONFIG_FW_CFG_DMA) += ramfb-standalone.o
common-obj-$(CONFIG_ADS7846) += ads7846.o
common-obj-$(CONFIG_VGA_CIRRUS) += cirrus_vga.o
diff --git a/hw/display/cirrus_vga.c b/hw/display/cirrus_vga.c
index cd283e53b4..93afa26fda 100644
--- a/hw/display/cirrus_vga.c
+++ b/hw/display/cirrus_vga.c
@@ -2975,6 +2975,9 @@ static void pci_cirrus_vga_realize(PCIDevice *dev, Error **errp)
PCIDeviceClass *pc = PCI_DEVICE_GET_CLASS(dev);
int16_t device_id = pc->device_id;
+ warn_report("'cirrus-vga' is deprecated, "
+ "please use a different VGA card instead");
+
/* follow real hardware, cirrus card emulated has 4 MB video memory.
Also accept 8 MB/16 MB for backward compatibility. */
if (s->vga.vram_size_mb != 4 && s->vga.vram_size_mb != 8 &&
diff --git a/hw/ide/piix.c b/hw/ide/piix.c
index db313dd3b1..e14858ca64 100644
--- a/hw/ide/piix.c
+++ b/hw/ide/piix.c
@@ -251,7 +251,8 @@ static void piix3_ide_class_init(ObjectClass *klass, void *data)
k->device_id = PCI_DEVICE_ID_INTEL_82371SB_1;
k->class_id = PCI_CLASS_STORAGE_IDE;
set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
- dc->hotpluggable = false;
+ /* Disabled for Red Hat Enterprise Linux: */
+ dc->user_creatable = false;
}
static const TypeInfo piix3_ide_info = {
@@ -279,6 +280,8 @@ static void piix4_ide_class_init(ObjectClass *klass, void *data)
k->class_id = PCI_CLASS_STORAGE_IDE;
set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
dc->hotpluggable = false;
+ /* Disabled for Red Hat Enterprise Linux: */
+ dc->user_creatable = false;
}
static const TypeInfo piix4_ide_info = {
diff --git a/hw/input/pckbd.c b/hw/input/pckbd.c
index f0acfd86f7..390eb6579c 100644
--- a/hw/input/pckbd.c
+++ b/hw/input/pckbd.c
@@ -571,6 +571,8 @@ static void i8042_class_initfn(ObjectClass *klass, void *data)
dc->realize = i8042_realizefn;
dc->vmsd = &vmstate_kbd_isa;
set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
+ /* Disabled for Red Hat Enterprise Linux: */
+ dc->user_creatable = false;
}
static const TypeInfo i8042_info = {
diff --git a/hw/net/e1000.c b/hw/net/e1000.c
index a73f8d404e..fc73fdd6fa 100644
--- a/hw/net/e1000.c
+++ b/hw/net/e1000.c
@@ -1795,6 +1795,7 @@ static const E1000Info e1000_devices[] = {
.revision = 0x03,
.phy_id2 = E1000_PHY_ID2_8254xx_DEFAULT,
},
+#if 0 /* Disabled for Red Hat Enterprise Linux 7 */
{
.name = "e1000-82544gc",
.device_id = E1000_DEV_ID_82544GC_COPPER,
@@ -1807,6 +1808,7 @@ static const E1000Info e1000_devices[] = {
.revision = 0x03,
.phy_id2 = E1000_PHY_ID2_8254xx_DEFAULT,
},
+#endif
};
static void e1000_register_types(void)
diff --git a/hw/pci-host/i440fx.c b/hw/pci-host/i440fx.c
index f27131102d..17f10efae2 100644
--- a/hw/pci-host/i440fx.c
+++ b/hw/pci-host/i440fx.c
@@ -386,6 +386,7 @@ static const TypeInfo i440fx_info = {
},
};
+#if 0 /* Disabled in Red Hat Enterprise Linux */
/* IGD Passthrough Host Bridge. */
typedef struct {
uint8_t offset;
@@ -469,6 +470,7 @@ static const TypeInfo igd_passthrough_i440fx_info = {
.instance_size = sizeof(PCII440FXState),
.class_init = igd_passthrough_i440fx_class_init,
};
+#endif
static const char *i440fx_pcihost_root_bus_path(PCIHostState *host_bridge,
PCIBus *rootbus)
@@ -514,7 +516,9 @@ static const TypeInfo i440fx_pcihost_info = {
static void i440fx_register_types(void)
{
type_register_static(&i440fx_info);
+#if 0 /* Disabled in Red Hat Enterprise Linux */
type_register_static(&igd_passthrough_i440fx_info);
+#endif
type_register_static(&i440fx_pcihost_info);
}
diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
index 8339c4c0f8..301cd7b4e4 100644
--- a/hw/ppc/spapr_cpu_core.c
+++ b/hw/ppc/spapr_cpu_core.c
@@ -403,10 +403,12 @@ static const TypeInfo spapr_cpu_core_type_infos[] = {
.instance_size = sizeof(SpaprCpuCore),
.class_size = sizeof(SpaprCpuCoreClass),
},
+#if 0 /* Disabled for Red Hat Enterprise Linux */
DEFINE_SPAPR_CPU_CORE_TYPE("970_v2.2"),
DEFINE_SPAPR_CPU_CORE_TYPE("970mp_v1.0"),
DEFINE_SPAPR_CPU_CORE_TYPE("970mp_v1.1"),
DEFINE_SPAPR_CPU_CORE_TYPE("power5+_v2.1"),
+#endif
DEFINE_SPAPR_CPU_CORE_TYPE("power7_v2.3"),
DEFINE_SPAPR_CPU_CORE_TYPE("power7+_v2.1"),
DEFINE_SPAPR_CPU_CORE_TYPE("power8_v2.0"),
diff --git a/hw/usb/Makefile.objs b/hw/usb/Makefile.objs
index 303ac084a0..700a91886e 100644
--- a/hw/usb/Makefile.objs
+++ b/hw/usb/Makefile.objs
@@ -30,7 +30,9 @@ common-obj-$(CONFIG_USB_BLUETOOTH) += dev-bluetooth.o
ifeq ($(CONFIG_USB_SMARTCARD),y)
common-obj-y += dev-smartcard-reader.o
common-obj-$(CONFIG_SMARTCARD) += smartcard.mo
-smartcard.mo-objs := ccid-card-passthru.o ccid-card-emulated.o
+# Disabled for Red Hat Enterprise Linux:
+# smartcard.mo-objs := ccid-card-passthru.o ccid-card-emulated.o
+smartcard.mo-objs := ccid-card-passthru.o
smartcard.mo-cflags := $(SMARTCARD_CFLAGS)
smartcard.mo-libs := $(SMARTCARD_LIBS)
endif
diff --git a/hw/vfio/pci-quirks.c b/hw/vfio/pci-quirks.c
index 136f3a9ad6..4505ffe48a 100644
--- a/hw/vfio/pci-quirks.c
+++ b/hw/vfio/pci-quirks.c
@@ -1166,6 +1166,7 @@ static void vfio_probe_rtl8168_bar2_quirk(VFIOPCIDevice *vdev, int nr)
trace_vfio_quirk_rtl8168_probe(vdev->vbasedev.name);
}
+#if 0 /* Disabled for Red Hat Enterprise Linux */
/*
* Intel IGD support
*
@@ -1239,6 +1240,7 @@ static int igd_gen(VFIOPCIDevice *vdev)
return 8; /* Assume newer is compatible */
}
+#endif
typedef struct VFIOIGDQuirk {
struct VFIOPCIDevice *vdev;
@@ -1311,6 +1313,7 @@ typedef struct {
uint8_t len;
} IGDHostInfo;
+#if 0 /* Disabled for Red Hat Enterprise Linux */
static const IGDHostInfo igd_host_bridge_infos[] = {
{PCI_REVISION_ID, 2},
{PCI_SUBSYSTEM_VENDOR_ID, 2},
@@ -1559,9 +1562,11 @@ static const MemoryRegionOps vfio_igd_index_quirk = {
.write = vfio_igd_quirk_index_write,
.endianness = DEVICE_LITTLE_ENDIAN,
};
+#endif
static void vfio_probe_igd_bar4_quirk(VFIOPCIDevice *vdev, int nr)
{
+#if 0 /* Disabled for Red Hat Enterprise Linux */
struct vfio_region_info *rom = NULL, *opregion = NULL,
*host = NULL, *lpc = NULL;
VFIOQuirk *quirk;
@@ -1572,6 +1577,7 @@ static void vfio_probe_igd_bar4_quirk(VFIOPCIDevice *vdev, int nr)
uint32_t gmch;
uint16_t cmd_orig, cmd;
Error *err = NULL;
+#endif
/*
* This must be an Intel VGA device at address 00:02.0 for us to even
@@ -1585,6 +1591,8 @@ static void vfio_probe_igd_bar4_quirk(VFIOPCIDevice *vdev, int nr)
return;
}
+#if 0 /* Disabled for Red Hat Enterprise Linux */
+
/*
* We need to create an LPC/ISA bridge at PCI bus address 00:1f.0 that we
* can stuff host values into, so if there's already one there and it's not
@@ -1809,6 +1817,7 @@ out:
g_free(opregion);
g_free(host);
g_free(lpc);
+#endif
}
/*
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 2d40b396f2..c8534d3035 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -3220,6 +3220,7 @@ static const TypeInfo vfio_pci_dev_info = {
},
};
+#if 0 /* Disabled for Red Hat Enterprise Linux */
static Property vfio_pci_dev_nohotplug_properties[] = {
DEFINE_PROP_BOOL("ramfb", VFIOPCIDevice, enable_ramfb, false),
DEFINE_PROP_END_OF_LIST(),
@@ -3239,11 +3240,15 @@ static const TypeInfo vfio_pci_nohotplug_dev_info = {
.instance_size = sizeof(VFIOPCIDevice),
.class_init = vfio_pci_nohotplug_dev_class_init,
};
+#endif
static void register_vfio_pci_dev_type(void)
{
type_register_static(&vfio_pci_dev_info);
+
+#if 0 /* Disabled for Red Hat Enterprise Linux */
type_register_static(&vfio_pci_nohotplug_dev_info);
+#endif
}
type_init(register_vfio_pci_dev_type)
diff --git a/qemu-options.hx b/qemu-options.hx
index 65c9473b73..fc17aca631 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -2111,11 +2111,6 @@ ETEXI
DEF("no-hpet", 0, QEMU_OPTION_no_hpet,
"-no-hpet disable HPET\n", QEMU_ARCH_I386)
-STEXI
-@item -no-hpet
-@findex -no-hpet
-Disable HPET support.
-ETEXI
DEF("acpitable", HAS_ARG, QEMU_OPTION_acpitable,
"-acpitable [sig=str][,rev=n][,oem_id=str][,oem_table_id=str][,oem_rev=n][,asl_compiler_id=str][,asl_compiler_rev=n][,{data|file}=file1[:file2]...]\n"
@@ -3125,6 +3120,7 @@ STEXI
ETEXI
DEFHEADING()
+#if 0
DEFHEADING(Bluetooth(R) options:)
STEXI
@table @option
@@ -3203,6 +3199,7 @@ STEXI
@end table
ETEXI
DEFHEADING()
+#endif
#ifdef CONFIG_TPM
DEFHEADING(TPM device options:)
diff --git a/target/arm/cpu.c b/target/arm/cpu.c
index 7a4ac9339b..3788fc3c4a 100644
--- a/target/arm/cpu.c
+++ b/target/arm/cpu.c
@@ -2744,7 +2744,9 @@ static void arm_cpu_register_types(void)
type_register_static(&idau_interface_type_info);
while (info->name) {
- cpu_register(info);
+ /* RHEL specific: Filter out unsupported cpu models */
+ if (!strcmp(info->name, "cortex-a15"))
+ cpu_register(info);
info++;
}
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 69f518a21a..1b7880ae3a 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1835,14 +1835,14 @@ static X86CPUDefinition builtin_x86_defs[] = {
.family = 6,
.model = 6,
.stepping = 3,
- .features[FEAT_1_EDX] =
- PPRO_FEATURES |
- CPUID_MTRR | CPUID_CLFLUSH | CPUID_MCA |
- CPUID_PSE36,
- .features[FEAT_1_ECX] =
- CPUID_EXT_SSE3 | CPUID_EXT_CX16,
- .features[FEAT_8000_0001_EDX] =
- CPUID_EXT2_LM | CPUID_EXT2_SYSCALL | CPUID_EXT2_NX,
+ .features[FEAT_1_EDX] = CPUID_SSE2 | CPUID_SSE | CPUID_FXSR |
+ CPUID_MMX | CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV |
+ CPUID_MCA | CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC |
+ CPUID_CX8 | CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC |
+ CPUID_PSE | CPUID_DE | CPUID_FP87,
+ .features[FEAT_1_ECX] = CPUID_EXT_CX16 | CPUID_EXT_SSE3,
+ .features[FEAT_8000_0001_EDX] = CPUID_EXT2_LM | CPUID_EXT2_NX |
+ CPUID_EXT2_SYSCALL,
.features[FEAT_8000_0001_ECX] =
CPUID_EXT3_LAHF_LM | CPUID_EXT3_SVM,
.xlevel = 0x8000000A,
@@ -2128,6 +2128,25 @@ static X86CPUDefinition builtin_x86_defs[] = {
.xlevel = 0x80000008,
.model_id = "Intel(R) Atom(TM) CPU N270 @ 1.60GHz",
},
+ {
+ .name = "cpu64-rhel6",
+ .level = 4,
+ .vendor = CPUID_VENDOR_AMD,
+ .family = 6,
+ .model = 13,
+ .stepping = 3,
+ .features[FEAT_1_EDX] = CPUID_SSE2 | CPUID_SSE | CPUID_FXSR |
+ CPUID_MMX | CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV |
+ CPUID_MCA | CPUID_PGE | CPUID_MTRR | CPUID_SEP | CPUID_APIC |
+ CPUID_CX8 | CPUID_MCE | CPUID_PAE | CPUID_MSR | CPUID_TSC |
+ CPUID_PSE | CPUID_DE | CPUID_FP87,
+ .features[FEAT_1_ECX] = CPUID_EXT_CX16 | CPUID_EXT_SSE3,
+ .features[FEAT_8000_0001_EDX] = CPUID_EXT2_LM | CPUID_EXT2_NX | CPUID_EXT2_SYSCALL,
+ .features[FEAT_8000_0001_ECX] = CPUID_EXT3_SSE4A | CPUID_EXT3_ABM |
+ CPUID_EXT3_SVM | CPUID_EXT3_LAHF_LM,
+ .xlevel = 0x8000000A,
+ .model_id = "QEMU Virtual CPU version (cpu64-rhel6)",
+ },
{
.name = "Conroe",
.level = 10,
diff --git a/target/ppc/cpu-models.c b/target/ppc/cpu-models.c
index 086548e9b9..1bbf378c18 100644
--- a/target/ppc/cpu-models.c
+++ b/target/ppc/cpu-models.c
@@ -66,6 +66,7 @@
#define POWERPC_DEF(_name, _pvr, _type, _desc) \
POWERPC_DEF_SVR(_name, _desc, _pvr, POWERPC_SVR_NONE, _type)
+#if 0 /* Embedded and 32-bit CPUs disabled for Red Hat Enterprise Linux */
/* Embedded PowerPC */
/* PowerPC 401 family */
POWERPC_DEF("401", CPU_POWERPC_401, 401,
@@ -740,8 +741,10 @@
"PowerPC 7447A v1.2 (G4)")
POWERPC_DEF("7457a_v1.2", CPU_POWERPC_74x7A_v12, 7455,
"PowerPC 7457A v1.2 (G4)")
+#endif
/* 64 bits PowerPC */
#if defined(TARGET_PPC64)
+#if 0 /* Disabled for Red Hat Enterprise Linux */
POWERPC_DEF("970_v2.2", CPU_POWERPC_970_v22, 970,
"PowerPC 970 v2.2")
POWERPC_DEF("970fx_v1.0", CPU_POWERPC_970FX_v10, 970,
@@ -760,6 +763,7 @@
"PowerPC 970MP v1.1")
POWERPC_DEF("power5+_v2.1", CPU_POWERPC_POWER5P_v21, POWER5P,
"POWER5+ v2.1")
+#endif
POWERPC_DEF("power7_v2.3", CPU_POWERPC_POWER7_v23, POWER7,
"POWER7 v2.3")
POWERPC_DEF("power7+_v2.1", CPU_POWERPC_POWER7P_v21, POWER7,
@@ -780,6 +784,7 @@
/* PowerPC CPU aliases */
PowerPCCPUAlias ppc_cpu_aliases[] = {
+#if 0 /* Embedded and 32-bit CPUs disabled for Red Hat Enterprise Linux */
{ "403", "403gc" },
{ "405", "405d4" },
{ "405cr", "405crc" },
@@ -938,12 +943,15 @@ PowerPCCPUAlias ppc_cpu_aliases[] = {
{ "7447a", "7447a_v1.2" },
{ "7457a", "7457a_v1.2" },
{ "apollo7pm", "7457a_v1.0" },
+#endif
#if defined(TARGET_PPC64)
+#if 0 /* Disabled for Red Hat Enterprise Linux */
{ "970", "970_v2.2" },
{ "970fx", "970fx_v3.1" },
{ "970mp", "970mp_v1.1" },
{ "power5+", "power5+_v2.1" },
{ "power5gs", "power5+_v2.1" },
+#endif
{ "power7", "power7_v2.3" },
{ "power7+", "power7+_v2.1" },
{ "power8e", "power8e_v2.1" },
@@ -952,6 +960,7 @@ PowerPCCPUAlias ppc_cpu_aliases[] = {
{ "power9", "power9_v2.0" },
#endif
+#if 0 /* Disabled for Red Hat Enterprise Linux */
/* Generic PowerPCs */
#if defined(TARGET_PPC64)
{ "ppc64", "970fx_v3.1" },
@@ -959,5 +968,6 @@ PowerPCCPUAlias ppc_cpu_aliases[] = {
{ "ppc32", "604" },
{ "ppc", "604" },
{ "default", "604" },
+#endif
{ NULL, NULL }
};
diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c
index 7e92fb2e15..be718220d7 100644
--- a/target/s390x/cpu_models.c
+++ b/target/s390x/cpu_models.c
@@ -404,6 +404,9 @@ static void check_unavailable_features(const S390CPUModel *max_model,
(max_model->def->gen == model->def->gen &&
max_model->def->ec_ga < model->def->ec_ga)) {
list_add_feat("type", unavailable);
+ } else if (model->def->gen < 11 && kvm_enabled()) {
+ /* Older CPU models are not supported on Red Hat Enterprise Linux */
+ list_add_feat("type", unavailable);
}
/* detect missing features if any to properly report them */
diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c
index 0c9d14b4b1..a02d569537 100644
--- a/target/s390x/kvm.c
+++ b/target/s390x/kvm.c
@@ -2387,6 +2387,14 @@ void kvm_s390_apply_cpu_model(const S390CPUModel *model, Error **errp)
error_setg(errp, "KVM doesn't support CPU models");
return;
}
+
+ /* Older CPU models are not supported on Red Hat Enterprise Linux */
+ if (model->def->gen < 11) {
+ error_setg(errp, "KVM: Unsupported CPU type specified: %s",
+ MACHINE(qdev_get_machine())->cpu_type);
+ return;
+ }
+
prop.cpuid = s390_cpuid_from_cpu_model(model);
prop.ibc = s390_ibc_from_cpu_model(model);
/* configure cpu features indicated via STFL(e) */
diff --git a/util/memfd.c b/util/memfd.c
index 4a3c07e0be..3303ec9da4 100644
--- a/util/memfd.c
+++ b/util/memfd.c
@@ -193,7 +193,7 @@ bool qemu_memfd_alloc_check(void)
*/
bool qemu_memfd_check(unsigned int flags)
{
-#ifdef CONFIG_LINUX
+#if 0 /* RHEL: memfd support disabled */
int mfd = memfd_create("test", flags | MFD_CLOEXEC);
if (mfd >= 0) {
diff --git a/vl.c b/vl.c
index 6a65a64bfd..668a34577e 100644
--- a/vl.c
+++ b/vl.c
@@ -166,7 +166,7 @@ Chardev *parallel_hds[MAX_PARALLEL_PORTS];
int win2k_install_hack = 0;
int singlestep = 0;
int acpi_enabled = 1;
-int no_hpet = 0;
+int no_hpet = 1; /* Always disabled for Red Hat Enterprise Linux */
int fd_bootchk = 1;
static int no_reboot;
int no_shutdown = 0;
@@ -914,6 +914,7 @@ static void configure_rtc(QemuOpts *opts)
}
}
+#if 0 // Disabled for Red Hat Enterprise Linux
/***********************************************************/
/* Bluetooth support */
static int nb_hcis;
@@ -1035,6 +1036,7 @@ static int bt_parse(const char *opt)
error_report("bad bluetooth parameter '%s'", opt);
return 1;
}
+#endif
static int parse_name(void *opaque, QemuOpts *opts, Error **errp)
{
@@ -3128,6 +3130,7 @@ int main(int argc, char **argv, char **envp)
}
break;
#endif
+#if 0 /* Disabled for Red Hat Enterprise Linux */
case QEMU_OPTION_bt:
warn_report("The bluetooth subsystem is deprecated and will "
"be removed soon. If the bluetooth subsystem is "
@@ -3135,6 +3138,7 @@ int main(int argc, char **argv, char **envp)
"qemu-devel@nongnu.org with your usecase.");
add_device_config(DEV_BT, optarg);
break;
+#endif
case QEMU_OPTION_audio_help:
audio_legacy_help();
exit (0);
@@ -4282,9 +4286,11 @@ int main(int argc, char **argv, char **envp)
tpm_init();
+#if 0 // Disabled for Red Hat Enterprise Linux
/* init the bluetooth world */
if (foreach_device_config(DEV_BT, bt_parse))
exit(1);
+#endif
if (!xen_enabled()) {
/* On 32-bit hosts, QEMU is limited by virtual address space */
--
2.21.0

675
SOURCES/0007-Machine-type-related-general-changes.patch Normal file
View File

@ -0,0 +1,675 @@
From 113078b23a4747b07eb363719d7cbc0af403dd2a Mon Sep 17 00:00:00 2001
From: Miroslav Rezanina <mrezanin@redhat.com>
Date: Fri, 11 Jan 2019 09:54:45 +0100
Subject: Machine type related general changes
This patch is first part of original "Add RHEL machine types" patch we
split to allow easier review. It contains changes not related to any
architecture.
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Rebase changes (4.0.0):
- Remove e1000 device duplication changes to reflect upstream solution
- Rewrite machine compat properties to upstream solution
Rebase changes (4.1.0):
- Removed optional flag for machine compat properties (upstream)
- Remove c3e002cb chunk from hw/net/e1000.c
- Reorder compat structures
- Use one format for compat scructures
- Added compat for virtio-balloon-pci.any_layout for rhel71
Merged patches (4.0.0):
- d4c0957 compat: Generic HW_COMPAT_RHEL7_6
- cbac773 virtio: Make disable-legacy/disable-modern compat properties optional
Merged patches (4.1.0):
- 479ad30 redhat: fix cut'n'paste garbage in hw_compat comments
- f19738e compat: Generic hw_compat_rhel_8_0
Merged patches (4.2.0):
- 9f2bfaa machine types: Update hw_compat_rhel_8_0 from hw_compat_4_0
- ca4a5e8 virtio: Make disable-legacy/disable-modern compat properties optional
- compat: Generic hw_compat_rhel_8_1 (patch 93040/92956)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/acpi/ich9.c | 16 ++++
hw/acpi/piix4.c | 5 +-
hw/char/serial.c | 16 ++++
hw/core/machine.c | 170 ++++++++++++++++++++++++++++++++++++++++
hw/display/vga-isa.c | 2 +-
hw/net/e1000e.c | 21 +++++
hw/net/rtl8139.c | 4 +-
hw/rtc/mc146818rtc.c | 6 ++
hw/smbios/smbios.c | 1 +
hw/timer/i8254_common.c | 2 +-
hw/usb/hcd-uhci.c | 4 +-
hw/usb/hcd-xhci.c | 20 +++++
hw/usb/hcd-xhci.h | 2 +
include/hw/acpi/ich9.h | 3 +
include/hw/boards.h | 24 ++++++
include/hw/usb.h | 4 +
migration/migration.c | 2 +
migration/migration.h | 5 ++
18 files changed, 301 insertions(+), 6 deletions(-)
diff --git a/hw/acpi/ich9.c b/hw/acpi/ich9.c
index ab203ad448..7ec26884e8 100644
--- a/hw/acpi/ich9.c
+++ b/hw/acpi/ich9.c
@@ -444,6 +444,18 @@ static void ich9_pm_set_enable_tco(Object *obj, bool value, Error **errp)
s->pm.enable_tco = value;
}
+static bool ich9_pm_get_force_rev1_fadt(Object *obj, Error **errp)
+{
+ ICH9LPCState *s = ICH9_LPC_DEVICE(obj);
+ return s->pm.force_rev1_fadt;
+}
+
+static void ich9_pm_set_force_rev1_fadt(Object *obj, bool value, Error **errp)
+{
+ ICH9LPCState *s = ICH9_LPC_DEVICE(obj);
+ s->pm.force_rev1_fadt = value;
+}
+
void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm, Error **errp)
{
static const uint32_t gpe0_len = ICH9_PMIO_GPE0_LEN;
@@ -468,6 +480,10 @@ void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm, Error **errp)
ich9_pm_get_cpu_hotplug_legacy,
ich9_pm_set_cpu_hotplug_legacy,
NULL);
+ object_property_add_bool(obj, "__com.redhat_force-rev1-fadt",
+ ich9_pm_get_force_rev1_fadt,
+ ich9_pm_set_force_rev1_fadt,
+ NULL);
object_property_add(obj, ACPI_PM_PROP_S3_DISABLED, "uint8",
ich9_pm_get_disable_s3,
ich9_pm_set_disable_s3,
diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index 93aec2dd2c..3a26193cbe 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -274,6 +274,7 @@ static const VMStateDescription vmstate_acpi = {
.name = "piix4_pm",
.version_id = 3,
.minimum_version_id = 3,
+ .minimum_version_id = 2,
.post_load = vmstate_acpi_post_load,
.fields = (VMStateField[]) {
VMSTATE_PCI_DEVICE(parent_obj, PIIX4PMState),
@@ -627,8 +628,8 @@ static void piix4_send_gpe(AcpiDeviceIf *adev, AcpiEventStatusBits ev)
static Property piix4_pm_properties[] = {
DEFINE_PROP_UINT32("smb_io_base", PIIX4PMState, smb_io_base, 0),
- DEFINE_PROP_UINT8(ACPI_PM_PROP_S3_DISABLED, PIIX4PMState, disable_s3, 0),
- DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_DISABLED, PIIX4PMState, disable_s4, 0),
+ DEFINE_PROP_UINT8(ACPI_PM_PROP_S3_DISABLED, PIIX4PMState, disable_s3, 1),
+ DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_DISABLED, PIIX4PMState, disable_s4, 1),
DEFINE_PROP_UINT8(ACPI_PM_PROP_S4_VAL, PIIX4PMState, s4_val, 2),
DEFINE_PROP_BOOL("acpi-pci-hotplug-with-bridge-support", PIIX4PMState,
use_acpi_pci_hotplug, true),
diff --git a/hw/char/serial.c b/hw/char/serial.c
index b4aa250950..0012f0e44d 100644
--- a/hw/char/serial.c
+++ b/hw/char/serial.c
@@ -34,6 +34,7 @@
#include "sysemu/runstate.h"
#include "qemu/error-report.h"
#include "trace.h"
+#include "migration/migration.h"
//#define DEBUG_SERIAL
@@ -703,6 +704,9 @@ static int serial_post_load(void *opaque, int version_id)
static bool serial_thr_ipending_needed(void *opaque)
{
SerialState *s = opaque;
+ if (migrate_pre_2_2) {
+ return false;
+ }
if (s->ier & UART_IER_THRI) {
bool expected_value = ((s->iir & UART_IIR_ID) == UART_IIR_THRI);
@@ -784,6 +788,10 @@ static const VMStateDescription vmstate_serial_xmit_fifo = {
static bool serial_fifo_timeout_timer_needed(void *opaque)
{
SerialState *s = (SerialState *)opaque;
+ if (migrate_pre_2_2) {
+ return false;
+ }
+
return timer_pending(s->fifo_timeout_timer);
}
@@ -801,6 +809,10 @@ static const VMStateDescription vmstate_serial_fifo_timeout_timer = {
static bool serial_timeout_ipending_needed(void *opaque)
{
SerialState *s = (SerialState *)opaque;
+ if (migrate_pre_2_2) {
+ return false;
+ }
+
return s->timeout_ipending != 0;
}
@@ -818,6 +830,10 @@ static const VMStateDescription vmstate_serial_timeout_ipending = {
static bool serial_poll_needed(void *opaque)
{
SerialState *s = (SerialState *)opaque;
+ if (migrate_pre_2_2) {
+ return false;
+ }
+
return s->poll_msl >= 0;
}
diff --git a/hw/core/machine.c b/hw/core/machine.c
index 1689ad3bf8..e0e0eec8bf 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -27,6 +27,176 @@
#include "hw/pci/pci.h"
#include "hw/mem/nvdimm.h"
+/*
+ * The same as hw_compat_4_1
+ */
+GlobalProperty hw_compat_rhel_8_1[] = {
+ /* hw_compat_rhel_8_1 from hw_compat_4_1 */
+ { "virtio-pci", "x-pcie-flr-init", "off" },
+};
+const size_t hw_compat_rhel_8_1_len = G_N_ELEMENTS(hw_compat_rhel_8_1);
+
+/* The same as hw_compat_3_1
+ * format of array has been changed by:
+ * 6c36bddf5340 ("machine: Use shorter format for GlobalProperty arrays")
+ */
+GlobalProperty hw_compat_rhel_8_0[] = {
+ /* hw_compat_rhel_8_0 from hw_compat_3_1 */
+ { "pcie-root-port", "x-speed", "2_5" },
+ /* hw_compat_rhel_8_0 from hw_compat_3_1 */
+ { "pcie-root-port", "x-width", "1" },
+ /* hw_compat_rhel_8_0 from hw_compat_3_1 */
+ { "memory-backend-file", "x-use-canonical-path-for-ramblock-id", "true" },
+ /* hw_compat_rhel_8_0 from hw_compat_3_1 */
+ { "memory-backend-memfd", "x-use-canonical-path-for-ramblock-id", "true" },
+ /* hw_compat_rhel_8_0 from hw_compat_3_1 */
+ { "tpm-crb", "ppi", "false" },
+ /* hw_compat_rhel_8_0 from hw_compat_3_1 */
+ { "tpm-tis", "ppi", "false" },
+ /* hw_compat_rhel_8_0 from hw_compat_3_1 */
+ { "usb-kbd", "serial", "42" },
+ /* hw_compat_rhel_8_0 from hw_compat_3_1 */
+ { "usb-mouse", "serial", "42" },
+ /* hw_compat_rhel_8_0 from hw_compat_3_1 */
+ { "usb-tablet", "serial", "42" },
+ /* hw_compat_rhel_8_0 from hw_compat_3_1 */
+ { "virtio-blk-device", "discard", "false" },
+ /* hw_compat_rhel_8_0 from hw_compat_3_1 */
+ { "virtio-blk-device", "write-zeroes", "false" },
+ /* hw_compat_rhel_8_0 from hw_compat_4_0 */
+ { "VGA", "edid", "false" },
+ /* hw_compat_rhel_8_0 from hw_compat_4_0 */
+ { "secondary-vga", "edid", "false" },
+ /* hw_compat_rhel_8_0 from hw_compat_4_0 */
+ { "bochs-display", "edid", "false" },
+ /* hw_compat_rhel_8_0 from hw_compat_4_0 */
+ { "virtio-vga", "edid", "false" },
+ /* hw_compat_rhel_8_0 from hw_compat_4_0 */
+ { "virtio-gpu-pci", "edid", "false" },
+ /* hw_compat_rhel_8_0 from hw_compat_4_0 */
+ { "virtio-device", "use-started", "false" },
+ /* hw_compat_rhel_8_0 from hw_compat_3_1 - that was added in 4.1 */
+ { "pcie-root-port-base", "disable-acs", "true" },
+};
+const size_t hw_compat_rhel_8_0_len = G_N_ELEMENTS(hw_compat_rhel_8_0);
+
+/* The same as hw_compat_3_0 + hw_compat_2_12
+ * except that
+ * there's nothing in 3_0
+ * migration.decompress-error-check=off was in 7.5 from bz 1584139
+ */
+GlobalProperty hw_compat_rhel_7_6[] = {
+ /* hw_compat_rhel_7_6 from hw_compat_2_12 */
+ { "hda-audio", "use-timer", "false" },
+ /* hw_compat_rhel_7_6 from hw_compat_2_12 */
+ { "cirrus-vga", "global-vmstate", "true" },
+ /* hw_compat_rhel_7_6 from hw_compat_2_12 */
+ { "VGA", "global-vmstate", "true" },
+ /* hw_compat_rhel_7_6 from hw_compat_2_12 */
+ { "vmware-svga", "global-vmstate", "true" },
+ /* hw_compat_rhel_7_6 from hw_compat_2_12 */
+ { "qxl-vga", "global-vmstate", "true" },
+};
+const size_t hw_compat_rhel_7_6_len = G_N_ELEMENTS(hw_compat_rhel_7_6);
+
+/* The same as hw_compat_2_11 + hw_compat_2_10 */
+GlobalProperty hw_compat_rhel_7_5[] = {
+ /* hw_compat_rhel_7_5 from hw_compat_2_11 */
+ { "hpet", "hpet-offset-saved", "false" },
+ /* hw_compat_rhel_7_5 from hw_compat_2_11 */
+ { "virtio-blk-pci", "vectors", "2" },
+ /* hw_compat_rhel_7_5 from hw_compat_2_11 */
+ { "vhost-user-blk-pci", "vectors", "2" },
+ /* hw_compat_rhel_7_5 from hw_compat_2_11
+ bz 1608778 modified for our naming */
+ { "e1000-82540em", "migrate_tso_props", "off" },
+ /* hw_compat_rhel_7_5 from hw_compat_2_10 */
+ { "virtio-mouse-device", "wheel-axis", "false" },
+ /* hw_compat_rhel_7_5 from hw_compat_2_10 */
+ { "virtio-tablet-device", "wheel-axis", "false" },
+ { "cirrus-vga", "vgamem_mb", "16" },
+ { "migration", "decompress-error-check", "off" },
+};
+const size_t hw_compat_rhel_7_5_len = G_N_ELEMENTS(hw_compat_rhel_7_5);
+
+/* Mostly like hw_compat_2_9 except
+ * x-mtu-bypass-backend, x-migrate-msix has already been
+ * backported to RHEL7.4. shpc was already on in 7.4.
+ */
+GlobalProperty hw_compat_rhel_7_4[] = {
+ { "intel-iommu", "pt", "off" },
+};
+
+const size_t hw_compat_rhel_7_4_len = G_N_ELEMENTS(hw_compat_rhel_7_4);
+/* Mostly like HW_COMPAT_2_6 + HW_COMPAT_2_7 + HW_COMPAT_2_8 except
+ * disable-modern, disable-legacy, page-per-vq have already been
+ * backported to RHEL7.3
+ */
+GlobalProperty hw_compat_rhel_7_3[] = {
+ { "virtio-mmio", "format_transport_address", "off" },
+ { "virtio-serial-device", "emergency-write", "off" },
+ { "ioapic", "version", "0x11" },
+ { "intel-iommu", "x-buggy-eim", "true" },
+ { "virtio-pci", "x-ignore-backend-features", "on" },
+ { "fw_cfg_mem", "x-file-slots", stringify(0x10) },
+ { "fw_cfg_io", "x-file-slots", stringify(0x10) },
+ { "pflash_cfi01", "old-multiple-chip-handling", "on" },
+ { TYPE_PCI_DEVICE, "x-pcie-extcap-init", "off" },
+ { "virtio-pci", "x-pcie-deverr-init", "off" },
+ { "virtio-pci", "x-pcie-lnkctl-init", "off" },
+ { "virtio-pci", "x-pcie-pm-init", "off" },
+ { "virtio-net-device", "x-mtu-bypass-backend", "off" },
+ { "e1000e", "__redhat_e1000e_7_3_intr_state", "on" },
+};
+const size_t hw_compat_rhel_7_3_len = G_N_ELEMENTS(hw_compat_rhel_7_3);
+
+/* Mostly like hw_compat_2_4 + 2_3 but:
+ * we don't need "any_layout" as it has been backported to 7.2
+ */
+GlobalProperty hw_compat_rhel_7_2[] = {
+ { "virtio-blk-device", "scsi", "true" },
+ { "e1000-82540em", "extra_mac_registers", "off" },
+ { "virtio-pci", "x-disable-pcie", "on" },
+ { "virtio-pci", "migrate-extra", "off" },
+ { "fw_cfg_mem", "dma_enabled", "off" },
+ { "fw_cfg_io", "dma_enabled", "off" },
+ { "isa-fdc", "fallback", "144" },
+ /* Optional because not all virtio-pci devices support legacy mode */
+ { "virtio-pci", "disable-modern", "on", .optional = true },
+ { "virtio-pci", "disable-legacy", "off", .optional = true },
+ { TYPE_PCI_DEVICE, "x-pcie-lnksta-dllla", "off" },
+ { "virtio-pci", "page-per-vq", "on" },
+ /* hw_compat_rhel_7_2 - introduced with 2.10.0 */
+ { "migration", "send-section-footer", "off" },
+ /* hw_compat_rhel_7_2 - introduced with 2.10.0 */
+ { "migration", "store-global-state", "off",
+ },
+};
+const size_t hw_compat_rhel_7_2_len = G_N_ELEMENTS(hw_compat_rhel_7_2);
+
+/* Mostly like hw_compat_2_1 but:
+ * we don't need virtio-scsi-pci since 7.0 already had that on
+ *
+ * RH: Note, qemu-extended-regs should have been enabled in the 7.1
+ * machine type, but was accidentally turned off in 7.2 onwards.
+ */
+GlobalProperty hw_compat_rhel_7_1[] = {
+ { "intel-hda-generic", "old_msi_addr", "on" },
+ { "VGA", "qemu-extended-regs", "off" },
+ { "secondary-vga", "qemu-extended-regs", "off" },
+ { "usb-mouse", "usb_version", stringify(1) },
+ { "usb-kbd", "usb_version", stringify(1) },
+ { "virtio-pci", "virtio-pci-bus-master-bug-migration", "on" },
+ { "virtio-blk-pci", "any_layout", "off" },
+ { "virtio-balloon-pci", "any_layout", "off" },
+ { "virtio-serial-pci", "any_layout", "off" },
+ { "virtio-9p-pci", "any_layout", "off" },
+ { "virtio-rng-pci", "any_layout", "off" },
+ /* HW_COMPAT_RHEL7_1 - introduced with 2.10.0 */
+ { "migration", "send-configuration", "off" },
+};
+const size_t hw_compat_rhel_7_1_len = G_N_ELEMENTS(hw_compat_rhel_7_1);
+
GlobalProperty hw_compat_4_1[] = {
{ "virtio-pci", "x-pcie-flr-init", "off" },
};
diff --git a/hw/display/vga-isa.c b/hw/display/vga-isa.c
index 873e5e9706..d1a2efe47e 100644
--- a/hw/display/vga-isa.c
+++ b/hw/display/vga-isa.c
@@ -82,7 +82,7 @@ static void vga_isa_realizefn(DeviceState *dev, Error **errp)
}
static Property vga_isa_properties[] = {
- DEFINE_PROP_UINT32("vgamem_mb", ISAVGAState, state.vram_size_mb, 8),
+ DEFINE_PROP_UINT32("vgamem_mb", ISAVGAState, state.vram_size_mb, 16),
DEFINE_PROP_END_OF_LIST(),
};
diff --git a/hw/net/e1000e.c b/hw/net/e1000e.c
index b69fd7d8ad..d8be50a1ce 100644
--- a/hw/net/e1000e.c
+++ b/hw/net/e1000e.c
@@ -79,6 +79,11 @@ typedef struct E1000EState {
E1000ECore core;
+ /* 7.3 had the intr_state field that was in the original e1000e code
+ * but that was removed prior to 2.7's release
+ */
+ bool redhat_7_3_intr_state_enable;
+ uint32_t redhat_7_3_intr_state;
} E1000EState;
#define E1000E_MMIO_IDX 0
@@ -94,6 +99,10 @@ typedef struct E1000EState {
#define E1000E_MSIX_TABLE (0x0000)
#define E1000E_MSIX_PBA (0x2000)
+/* Values as in RHEL 7.3 build and original upstream */
+#define RH_E1000E_USE_MSI BIT(0)
+#define RH_E1000E_USE_MSIX BIT(1)
+
static uint64_t
e1000e_mmio_read(void *opaque, hwaddr addr, unsigned size)
{
@@ -305,6 +314,8 @@ e1000e_init_msix(E1000EState *s)
} else {
if (!e1000e_use_msix_vectors(s, E1000E_MSIX_VEC_NUM)) {
msix_uninit(d, &s->msix, &s->msix);
+ } else {
+ s->redhat_7_3_intr_state |= RH_E1000E_USE_MSIX;
}
}
}
@@ -476,6 +487,8 @@ static void e1000e_pci_realize(PCIDevice *pci_dev, Error **errp)
ret = msi_init(PCI_DEVICE(s), 0xD0, 1, true, false, NULL);
if (ret) {
trace_e1000e_msi_init_fail(ret);
+ } else {
+ s->redhat_7_3_intr_state |= RH_E1000E_USE_MSI;
}
if (e1000e_add_pm_capability(pci_dev, e1000e_pmrb_offset,
@@ -599,6 +612,11 @@ static const VMStateDescription e1000e_vmstate_intr_timer = {
VMSTATE_STRUCT_ARRAY(_f, _s, _num, 0, \
e1000e_vmstate_intr_timer, E1000IntrDelayTimer)
+static bool rhel_7_3_check(void *opaque, int version_id)
+{
+ return ((E1000EState *)opaque)->redhat_7_3_intr_state_enable;
+}
+
static const VMStateDescription e1000e_vmstate = {
.name = "e1000e",
.version_id = 1,
@@ -610,6 +628,7 @@ static const VMStateDescription e1000e_vmstate = {
VMSTATE_MSIX(parent_obj, E1000EState),
VMSTATE_UINT32(ioaddr, E1000EState),
+ VMSTATE_UINT32_TEST(redhat_7_3_intr_state, E1000EState, rhel_7_3_check),
VMSTATE_UINT32(core.rxbuf_min_shift, E1000EState),
VMSTATE_UINT8(core.rx_desc_len, E1000EState),
VMSTATE_UINT32_ARRAY(core.rxbuf_sizes, E1000EState,
@@ -658,6 +677,8 @@ static PropertyInfo e1000e_prop_disable_vnet,
static Property e1000e_properties[] = {
DEFINE_NIC_PROPERTIES(E1000EState, conf),
+ DEFINE_PROP_BOOL("__redhat_e1000e_7_3_intr_state", E1000EState,
+ redhat_7_3_intr_state_enable, false),
DEFINE_PROP_SIGNED("disable_vnet_hdr", E1000EState, disable_vnet, false,
e1000e_prop_disable_vnet, bool),
DEFINE_PROP_SIGNED("subsys_ven", E1000EState, subsys_ven,
diff --git a/hw/net/rtl8139.c b/hw/net/rtl8139.c
index 88a97d756d..21d80e96cf 100644
--- a/hw/net/rtl8139.c
+++ b/hw/net/rtl8139.c
@@ -3177,7 +3177,7 @@ static int rtl8139_pre_save(void *opaque)
static const VMStateDescription vmstate_rtl8139 = {
.name = "rtl8139",
- .version_id = 5,
+ .version_id = 4,
.minimum_version_id = 3,
.post_load = rtl8139_post_load,
.pre_save = rtl8139_pre_save,
@@ -3258,7 +3258,9 @@ static const VMStateDescription vmstate_rtl8139 = {
VMSTATE_UINT32(tally_counters.TxMCol, RTL8139State),
VMSTATE_UINT64(tally_counters.RxOkPhy, RTL8139State),
VMSTATE_UINT64(tally_counters.RxOkBrd, RTL8139State),
+#if 0 /* Disabled for Red Hat Enterprise Linux bz 1420195 */
VMSTATE_UINT32_V(tally_counters.RxOkMul, RTL8139State, 5),
+#endif
VMSTATE_UINT16(tally_counters.TxAbt, RTL8139State),
VMSTATE_UINT16(tally_counters.TxUndrn, RTL8139State),
diff --git a/hw/rtc/mc146818rtc.c b/hw/rtc/mc146818rtc.c
index 74ae74bc5c..73820517df 100644
--- a/hw/rtc/mc146818rtc.c
+++ b/hw/rtc/mc146818rtc.c
@@ -42,6 +42,7 @@
#include "qapi/visitor.h"
#include "exec/address-spaces.h"
#include "hw/rtc/mc146818rtc_regs.h"
+#include "migration/migration.h"
#ifdef TARGET_I386
#include "qapi/qapi-commands-misc-target.h"
@@ -820,6 +821,11 @@ static int rtc_post_load(void *opaque, int version_id)
static bool rtc_irq_reinject_on_ack_count_needed(void *opaque)
{
RTCState *s = (RTCState *)opaque;
+
+ if (migrate_pre_2_2) {
+ return false;
+ }
+
return s->irq_reinject_on_ack_count != 0;
}
diff --git a/hw/smbios/smbios.c b/hw/smbios/smbios.c
index 11d476c4a2..e6e9355384 100644
--- a/hw/smbios/smbios.c
+++ b/hw/smbios/smbios.c
@@ -777,6 +777,7 @@ void smbios_set_defaults(const char *manufacturer, const char *product,
SMBIOS_SET_DEFAULT(type1.manufacturer, manufacturer);
SMBIOS_SET_DEFAULT(type1.product, product);
SMBIOS_SET_DEFAULT(type1.version, version);
+ SMBIOS_SET_DEFAULT(type1.family, "Red Hat Enterprise Linux");
SMBIOS_SET_DEFAULT(type2.manufacturer, manufacturer);
SMBIOS_SET_DEFAULT(type2.product, product);
SMBIOS_SET_DEFAULT(type2.version, version);
diff --git a/hw/timer/i8254_common.c b/hw/timer/i8254_common.c
index 050875b497..32935da46c 100644
--- a/hw/timer/i8254_common.c
+++ b/hw/timer/i8254_common.c
@@ -231,7 +231,7 @@ static const VMStateDescription vmstate_pit_common = {
.pre_save = pit_dispatch_pre_save,
.post_load = pit_dispatch_post_load,
.fields = (VMStateField[]) {
- VMSTATE_UINT32_V(channels[0].irq_disabled, PITCommonState, 3),
+ VMSTATE_UINT32(channels[0].irq_disabled, PITCommonState), /* qemu-kvm's v2 had 'flags' here */
VMSTATE_STRUCT_ARRAY(channels, PITCommonState, 3, 2,
vmstate_pit_channel, PITChannelState),
VMSTATE_INT64(channels[0].next_transition_time,
diff --git a/hw/usb/hcd-uhci.c b/hw/usb/hcd-uhci.c
index 23507ad3b5..9fd87a7ad9 100644
--- a/hw/usb/hcd-uhci.c
+++ b/hw/usb/hcd-uhci.c
@@ -1219,12 +1219,14 @@ static void usb_uhci_common_realize(PCIDevice *dev, Error **errp)
UHCIState *s = UHCI(dev);
uint8_t *pci_conf = s->dev.config;
int i;
+ int irq_pin;
pci_conf[PCI_CLASS_PROG] = 0x00;
/* TODO: reset value should be 0. */
pci_conf[USB_SBRN] = USB_RELEASE_1; // release number
- pci_config_set_interrupt_pin(pci_conf, u->info.irq_pin + 1);
+ irq_pin = u->info.irq_pin;
+ pci_config_set_interrupt_pin(pci_conf, irq_pin + 1);
if (s->masterbus) {
USBPort *ports[NB_PORTS];
diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index 80988bb305..8fed2eedd6 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -3590,9 +3590,27 @@ static const VMStateDescription vmstate_xhci_slot = {
}
};
+static int xhci_event_pre_save(void *opaque)
+{
+ XHCIEvent *s = opaque;
+
+ s->cve_2014_5263_a = ((uint8_t *)&s->type)[0];
+ s->cve_2014_5263_b = ((uint8_t *)&s->type)[1];
+
+ return 0;
+}
+
+bool migrate_cve_2014_5263_xhci_fields;
+
+static bool xhci_event_cve_2014_5263(void *opaque, int version_id)
+{
+ return migrate_cve_2014_5263_xhci_fields;
+}
+
static const VMStateDescription vmstate_xhci_event = {
.name = "xhci-event",
.version_id = 1,
+ .pre_save = xhci_event_pre_save,
.fields = (VMStateField[]) {
VMSTATE_UINT32(type, XHCIEvent),
VMSTATE_UINT32(ccode, XHCIEvent),
@@ -3601,6 +3619,8 @@ static const VMStateDescription vmstate_xhci_event = {
VMSTATE_UINT32(flags, XHCIEvent),
VMSTATE_UINT8(slotid, XHCIEvent),
VMSTATE_UINT8(epid, XHCIEvent),
+ VMSTATE_UINT8_TEST(cve_2014_5263_a, XHCIEvent, xhci_event_cve_2014_5263),
+ VMSTATE_UINT8_TEST(cve_2014_5263_b, XHCIEvent, xhci_event_cve_2014_5263),
VMSTATE_END_OF_LIST()
}
};
diff --git a/hw/usb/hcd-xhci.h b/hw/usb/hcd-xhci.h
index 2fad4df2a7..f554b671e3 100644
--- a/hw/usb/hcd-xhci.h
+++ b/hw/usb/hcd-xhci.h
@@ -157,6 +157,8 @@ typedef struct XHCIEvent {
uint32_t flags;
uint8_t slotid;
uint8_t epid;
+ uint8_t cve_2014_5263_a;
+ uint8_t cve_2014_5263_b;
} XHCIEvent;
typedef struct XHCIInterrupter {
diff --git a/include/hw/acpi/ich9.h b/include/hw/acpi/ich9.h
index 41568d1837..1a23ccc412 100644
--- a/include/hw/acpi/ich9.h
+++ b/include/hw/acpi/ich9.h
@@ -61,6 +61,9 @@ typedef struct ICH9LPCPMRegs {
uint8_t smm_enabled;
bool enable_tco;
TCOIORegs tco_regs;
+
+ /* RH addition, see bz 1489800 */
+ bool force_rev1_fadt;
} ICH9LPCPMRegs;
#define ACPI_PM_PROP_TCO_ENABLED "enable_tco"
diff --git a/include/hw/boards.h b/include/hw/boards.h
index de45087f34..6f85a0e032 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -377,4 +377,28 @@ extern const size_t hw_compat_2_2_len;
extern GlobalProperty hw_compat_2_1[];
extern const size_t hw_compat_2_1_len;
+extern GlobalProperty hw_compat_rhel_8_1[];
+extern const size_t hw_compat_rhel_8_1_len;
+
+extern GlobalProperty hw_compat_rhel_8_0[];
+extern const size_t hw_compat_rhel_8_0_len;
+
+extern GlobalProperty hw_compat_rhel_7_6[];
+extern const size_t hw_compat_rhel_7_6_len;
+
+extern GlobalProperty hw_compat_rhel_7_5[];
+extern const size_t hw_compat_rhel_7_5_len;
+
+extern GlobalProperty hw_compat_rhel_7_4[];
+extern const size_t hw_compat_rhel_7_4_len;
+
+extern GlobalProperty hw_compat_rhel_7_3[];
+extern const size_t hw_compat_rhel_7_3_len;
+
+extern GlobalProperty hw_compat_rhel_7_2[];
+extern const size_t hw_compat_rhel_7_2_len;
+
+extern GlobalProperty hw_compat_rhel_7_1[];
+extern const size_t hw_compat_rhel_7_1_len;
+
#endif
diff --git a/include/hw/usb.h b/include/hw/usb.h
index c24d968a19..b353438ea0 100644
--- a/include/hw/usb.h
+++ b/include/hw/usb.h
@@ -605,4 +605,8 @@ int usb_get_quirks(uint16_t vendor_id, uint16_t product_id,
uint8_t interface_class, uint8_t interface_subclass,
uint8_t interface_protocol);
+
+/* hcd-xhci.c -- rhel7.0.0 machine type compatibility */
+extern bool migrate_cve_2014_5263_xhci_fields;
+
#endif
diff --git a/migration/migration.c b/migration/migration.c
index 354ad072fa..30c53c623b 100644
--- a/migration/migration.c
+++ b/migration/migration.c
@@ -121,6 +121,8 @@ enum mig_rp_message_type {
MIG_RP_MSG_MAX
};
+bool migrate_pre_2_2;
+
/* When we add fault tolerance, we could have several
migrations at once. For now we don't need to add
dynamic creation of migration */
diff --git a/migration/migration.h b/migration/migration.h
index 79b3dda146..0b1b0d4df5 100644
--- a/migration/migration.h
+++ b/migration/migration.h
@@ -335,6 +335,11 @@ void init_dirty_bitmap_incoming_migration(void);
void migrate_add_address(SocketAddress *address);
int foreach_not_ignored_block(RAMBlockIterFunc func, void *opaque);
+/*
+ * Disables a load of subsections that were added in 2.2/rh7.2 for backwards
+ * migration compatibility.
+ */
+extern bool migrate_pre_2_2;
#define qemu_ram_foreach_block \
#warning "Use foreach_not_ignored_block in migration code"
--
2.21.0

276
SOURCES/0008-Add-aarch64-machine-types.patch Normal file
View File

@ -0,0 +1,276 @@
From 49164264d9928f73961acbbe4d56d8dfa23d8099 Mon Sep 17 00:00:00 2001
From: Miroslav Rezanina <mrezanin@redhat.com>
Date: Fri, 19 Oct 2018 12:53:31 +0200
Subject: Add aarch64 machine types
Adding changes to add RHEL machine types for aarch64 architecture.
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Rebase changes (4.0.0):
- Use upstream compat handling
Rebase changes (4.1.0-rc0):
- Removed a15memmap (upstream)
- Use virt_flash_create in rhel800_virt_instance_init
Rebase changes (4.2.0-rc0):
- Set numa_mem_supported
Rebase notes (4.2.0-rc3):
- aarch64: Add virt-rhel8.2.0 machine type for ARM (patch 92246)
- aarch64: virt: Allow more than 1TB of RAM (patch 92249)
- aarch64: virt: Allow PCDIMM instantiation (patch 92247)
- aarch64: virt: Enhance the comment related to gic-version (patch 92248)
Merged patches (4.0.0):
- 7bfdb4c aarch64: Add virt-rhel8.0.0 machine type for ARM
- 3433e69 aarch64: Set virt-rhel8.0.0 max_cpus to 512
- 4d20863 aarch64: Use 256MB ECAM region by default
Merged patches (4.1.0):
- c3e39ef aarch64: Add virt-rhel8.1.0 machine type for ARM
- 59a46d1 aarch64: Allow ARM VIRT iommu option in RHEL8.1 machine
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/arm/virt.c | 161 +++++++++++++++++++++++++++++++++++++++++-
include/hw/arm/virt.h | 11 +++
2 files changed, 171 insertions(+), 1 deletion(-)
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index d4bedc2607..e10839100e 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -72,6 +72,7 @@
#include "hw/mem/nvdimm.h"
#include "hw/acpi/generic_event_device.h"
+#if 0 /* Disabled for Red Hat Enterprise Linux */
#define DEFINE_VIRT_MACHINE_LATEST(major, minor, latest) \
static void virt_##major##_##minor##_class_init(ObjectClass *oc, \
void *data) \
@@ -98,7 +99,49 @@
DEFINE_VIRT_MACHINE_LATEST(major, minor, true)
#define DEFINE_VIRT_MACHINE(major, minor) \
DEFINE_VIRT_MACHINE_LATEST(major, minor, false)
-
+#endif /* disabled for RHEL */
+
+#define DEFINE_RHEL_MACHINE_LATEST(m, n, s, latest) \
+ static void rhel##m##n##s##_virt_class_init(ObjectClass *oc, \
+ void *data) \
+ { \
+ MachineClass *mc = MACHINE_CLASS(oc); \
+ rhel##m##n##s##_virt_options(mc); \
+ mc->desc = "RHEL " # m "." # n "." # s " ARM Virtual Machine"; \
+ if (latest) { \
+ mc->alias = "virt"; \
+ mc->is_default = 1; \
+ } \
+ } \
+ static const TypeInfo rhel##m##n##s##_machvirt_info = { \
+ .name = MACHINE_TYPE_NAME("virt-rhel" # m "." # n "." # s), \
+ .parent = TYPE_RHEL_MACHINE, \
+ .instance_init = rhel##m##n##s##_virt_instance_init, \
+ .class_init = rhel##m##n##s##_virt_class_init, \
+ }; \
+ static void rhel##m##n##s##_machvirt_init(void) \
+ { \
+ type_register_static(&rhel##m##n##s##_machvirt_info); \
+ } \
+ type_init(rhel##m##n##s##_machvirt_init);
+
+#define DEFINE_RHEL_MACHINE_AS_LATEST(major, minor, subminor) \
+ DEFINE_RHEL_MACHINE_LATEST(major, minor, subminor, true)
+#define DEFINE_RHEL_MACHINE(major, minor, subminor) \
+ DEFINE_RHEL_MACHINE_LATEST(major, minor, subminor, false)
+
+/* This variable is for changes to properties that are RHEL specific,
+ * different to the current upstream and to be applied to the latest
+ * machine type.
+ */
+GlobalProperty arm_rhel_compat[] = {
+ {
+ .driver = "virtio-net-pci",
+ .property = "romfile",
+ .value = "",
+ },
+};
+const size_t arm_rhel_compat_len = G_N_ELEMENTS(arm_rhel_compat);
/* Number of external interrupt lines to configure the GIC with */
#define NUM_IRQS 256
@@ -1763,6 +1806,7 @@ static void machvirt_init(MachineState *machine)
qemu_add_machine_init_done_notifier(&vms->machine_done);
}
+#if 0 /* Disabled for Red Hat Enterprise Linux */
static bool virt_get_secure(Object *obj, Error **errp)
{
VirtMachineState *vms = VIRT_MACHINE(obj);
@@ -1791,6 +1835,7 @@ static void virt_set_virt(Object *obj, bool value, Error **errp)
vms->virt = value;
}
+#endif /* disabled for RHEL */
static bool virt_get_highmem(Object *obj, Error **errp)
{
VirtMachineState *vms = VIRT_MACHINE(obj);
@@ -2022,6 +2067,7 @@ static int virt_kvm_type(MachineState *ms, const char *type_str)
return requested_pa_size > 40 ? requested_pa_size : 0;
}
+#if 0 /* Disabled for Red Hat Enterprise Linux */
static void virt_machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
@@ -2258,3 +2304,116 @@ static void virt_machine_2_6_options(MachineClass *mc)
vmc->no_pmu = true;
}
DEFINE_VIRT_MACHINE(2, 6)
+#endif /* disabled for RHEL */
+
+static void rhel_machine_class_init(ObjectClass *oc, void *data)
+{
+ MachineClass *mc = MACHINE_CLASS(oc);
+ HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
+
+ mc->family = "virt-rhel-Z";
+ mc->init = machvirt_init;
+ /* Start with max_cpus set to 512, which is the maximum supported by KVM.
+ * The value may be reduced later when we have more information about the
+ * configuration of the particular instance.
+ */
+ mc->max_cpus = 512;
+ mc->block_default_type = IF_VIRTIO;
+ mc->no_cdrom = 1;
+ mc->pci_allow_0_address = true;
+ /* We know we will never create a pre-ARMv7 CPU which needs 1K pages */
+ mc->minimum_page_bits = 12;
+ mc->possible_cpu_arch_ids = virt_possible_cpu_arch_ids;
+ mc->cpu_index_to_instance_props = virt_cpu_index_to_props;
+ mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-a57");
+ mc->get_default_cpu_node_id = virt_get_default_cpu_node_id;
+ mc->kvm_type = virt_kvm_type;
+ assert(!mc->get_hotplug_handler);
+ mc->get_hotplug_handler = virt_machine_get_hotplug_handler;
+ hc->pre_plug = virt_machine_device_pre_plug_cb;
+ hc->plug = virt_machine_device_plug_cb;
+ hc->unplug_request = virt_machine_device_unplug_request_cb;
+ mc->numa_mem_supported = true;
+ mc->auto_enable_numa_with_memhp = true;
+}
+
+static const TypeInfo rhel_machine_info = {
+ .name = TYPE_RHEL_MACHINE,
+ .parent = TYPE_MACHINE,
+ .abstract = true,
+ .instance_size = sizeof(VirtMachineState),
+ .class_size = sizeof(VirtMachineClass),
+ .class_init = rhel_machine_class_init,
+ .interfaces = (InterfaceInfo[]) {
+ { TYPE_HOTPLUG_HANDLER },
+ { }
+ },
+};
+
+static void rhel_machine_init(void)
+{
+ type_register_static(&rhel_machine_info);
+}
+type_init(rhel_machine_init);
+
+static void rhel820_virt_instance_init(Object *obj)
+{
+ VirtMachineState *vms = VIRT_MACHINE(obj);
+ VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms);
+
+ /* EL3 is disabled by default and non-configurable for RHEL */
+ vms->secure = false;
+ /* EL2 is disabled by default and non-configurable for RHEL */
+ vms->virt = false;
+ /* High memory is enabled by default for RHEL */
+ vms->highmem = true;
+ object_property_add_bool(obj, "highmem", virt_get_highmem,
+ virt_set_highmem, NULL);
+ object_property_set_description(obj, "highmem",
+ "Set on/off to enable/disable using "
+ "physical address space above 32 bits",
+ NULL);
+ /*
+ * Default GIC type is still v2, but became configurable for RHEL. We
+ * keep v2 instead of max as TCG CI test cases require an MSI controller
+ * and there is no userspace ITS MSI emulation available.
+ */
+ vms->gic_version = 2;
+ object_property_add_str(obj, "gic-version", virt_get_gic_version,
+ virt_set_gic_version, NULL);
+ object_property_set_description(obj, "gic-version",
+ "Set GIC version. "
+ "Valid values are 2, 3 and host", NULL);
+
+ vms->highmem_ecam = !vmc->no_highmem_ecam;
+
+ if (vmc->no_its) {
+ vms->its = false;
+ } else {
+ /* Default allows ITS instantiation */
+ vms->its = true;
+ object_property_add_bool(obj, "its", virt_get_its,
+ virt_set_its, NULL);
+ object_property_set_description(obj, "its",
+ "Set on/off to enable/disable "
+ "ITS instantiation",
+ NULL);
+ }
+
+ /* Default disallows iommu instantiation */
+ vms->iommu = VIRT_IOMMU_NONE;
+ object_property_add_str(obj, "iommu", virt_get_iommu, virt_set_iommu, NULL);
+ object_property_set_description(obj, "iommu",
+ "Set the IOMMU type. "
+ "Valid values are none and smmuv3",
+ NULL);
+
+ vms->irqmap=a15irqmap;
+ virt_flash_create(vms);
+}
+
+static void rhel820_virt_options(MachineClass *mc)
+{
+ compat_props_add(mc->compat_props, arm_rhel_compat, arm_rhel_compat_len);
+}
+DEFINE_RHEL_MACHINE_AS_LATEST(8, 2, 0)
diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
index 0b41083e9d..53fdf16563 100644
--- a/include/hw/arm/virt.h
+++ b/include/hw/arm/virt.h
@@ -142,6 +142,7 @@ typedef struct {
#define VIRT_ECAM_ID(high) (high ? VIRT_HIGH_PCIE_ECAM : VIRT_PCIE_ECAM)
+#if 0 /* disabled for Red Hat Enterprise Linux */
#define TYPE_VIRT_MACHINE MACHINE_TYPE_NAME("virt")
#define VIRT_MACHINE(obj) \
OBJECT_CHECK(VirtMachineState, (obj), TYPE_VIRT_MACHINE)
@@ -150,6 +151,16 @@ typedef struct {
#define VIRT_MACHINE_CLASS(klass) \
OBJECT_CLASS_CHECK(VirtMachineClass, klass, TYPE_VIRT_MACHINE)
+#else
+#define TYPE_RHEL_MACHINE MACHINE_TYPE_NAME("virt-rhel")
+#define VIRT_MACHINE(obj) \
+ OBJECT_CHECK(VirtMachineState, (obj), TYPE_RHEL_MACHINE)
+#define VIRT_MACHINE_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(VirtMachineClass, obj, TYPE_RHEL_MACHINE)
+#define VIRT_MACHINE_CLASS(klass) \
+ OBJECT_CLASS_CHECK(VirtMachineClass, klass, TYPE_RHEL_MACHINE)
+#endif
+
void virt_acpi_setup(VirtMachineState *vms);
/* Return the number of used redistributor regions */
--
2.21.0

463
SOURCES/0009-Add-ppc64-machine-types.patch Normal file
View File

@ -0,0 +1,463 @@
From 136eae41007e2e5b0d693cc656f3ec36cbabf16f Mon Sep 17 00:00:00 2001
From: Miroslav Rezanina <mrezanin@redhat.com>
Date: Fri, 19 Oct 2018 13:27:13 +0200
Subject: Add ppc64 machine types
Adding changes to add RHEL machine types for ppc64 architecture.
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Rebase changes (4.0.0):
- remove instance options and use upstream solution
- Use upstream compat handling
- Replace SPAPR_PCI_2_7_MMIO_WIN_SIZE with value (changed upstream)
- re-add handling of instance_options (removed upstream)
- Use p8 as default for rhel machine types (p9 default upstream)
- sPAPRMachineClass renamed to SpaprMachineClass (upstream)
Rebase changes (4.1.0):
- Update format for compat structures
Merged patches (4.0.0):
- 467d59a redhat: define pseries-rhel8.0.0 machine type
Merged patches (4.1.0):
- f21757edc target/ppc/spapr: Enable mitigations by default for pseries-4.0 machine type
- 2511c63 redhat: sync pseries-rhel7.6.0 with rhel-av-8.0.1
- 89f01da redhat: define pseries-rhel8.1.0 machine type
Merged patches (4.2.0):
- bcba728 redhat: update pseries-rhel8.1.0 machine type
- redhat: update pseries-rhel-7.6.0 machine type (patch 93039)
- redhat: define pseries-rhel8.2.0 machine type (patch 93041)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/ppc/spapr.c | 278 ++++++++++++++++++++++++++++++++++++++++
hw/ppc/spapr_cpu_core.c | 13 ++
include/hw/ppc/spapr.h | 1 +
target/ppc/compat.c | 13 +-
target/ppc/cpu.h | 1 +
5 files changed, 305 insertions(+), 1 deletion(-)
diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index e076f6023c..8749c72066 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -4447,6 +4447,7 @@ static void spapr_machine_class_init(ObjectClass *oc, void *data)
smc->linux_pci_probe = true;
smc->smp_threads_vsmt = true;
smc->nr_xirqs = SPAPR_NR_XIRQS;
+ smc->has_power9_support = true;
}
static const TypeInfo spapr_machine_info = {
@@ -4491,6 +4492,7 @@ static const TypeInfo spapr_machine_info = {
} \
type_init(spapr_machine_register_##suffix)
+#if 0 /* Disabled for Red Hat Enterprise Linux */
/*
* pseries-4.2
*/
@@ -4520,6 +4522,7 @@ static void spapr_machine_4_1_class_options(MachineClass *mc)
}
DEFINE_SPAPR_MACHINE(4_1, "4.1", false);
+#endif
/*
* pseries-4.0
@@ -4536,6 +4539,7 @@ static void phb_placement_4_0(SpaprMachineState *spapr, uint32_t index,
*nv2atsd = 0;
}
+#if 0 /* Disabled for Red Hat Enterprise Linux */
static void spapr_machine_4_0_class_options(MachineClass *mc)
{
SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
@@ -4695,6 +4699,7 @@ DEFINE_SPAPR_MACHINE(2_8, "2.8", false);
/*
* pseries-2.7
*/
+#endif
static void phb_placement_2_7(SpaprMachineState *spapr, uint32_t index,
uint64_t *buid, hwaddr *pio,
@@ -4749,6 +4754,7 @@ static void phb_placement_2_7(SpaprMachineState *spapr, uint32_t index,
*nv2atsd = 0;
}
+#if 0 /* Disabled for Red Hat Enterprise Linux */
static void spapr_machine_2_7_class_options(MachineClass *mc)
{
SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
@@ -4863,6 +4869,278 @@ static void spapr_machine_2_1_class_options(MachineClass *mc)
compat_props_add(mc->compat_props, hw_compat_2_1, hw_compat_2_1_len);
}
DEFINE_SPAPR_MACHINE(2_1, "2.1", false);
+#endif
+
+/*
+ * pseries-rhel8.2.0
+ */
+
+static void spapr_machine_rhel820_class_options(MachineClass *mc)
+{
+ /* Defaults for the latest behaviour inherited from the base class */
+}
+
+DEFINE_SPAPR_MACHINE(rhel820, "rhel8.2.0", true);
+
+/*
+ * pseries-rhel8.1.0
+ * like pseries-4.1
+ */
+
+static void spapr_machine_rhel810_class_options(MachineClass *mc)
+{
+ SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
+ static GlobalProperty compat[] = {
+ /* Only allow 4kiB and 64kiB IOMMU pagesizes */
+ { TYPE_SPAPR_PCI_HOST_BRIDGE, "pgsz", "0x11000" },
+ };
+
+ spapr_machine_rhel820_class_options(mc);
+
+ /* from pseries-4.1 */
+ smc->linux_pci_probe = false;
+ smc->smp_threads_vsmt = false;
+ compat_props_add(mc->compat_props, hw_compat_rhel_8_1,
+ hw_compat_rhel_8_1_len);
+ compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
+
+}
+
+DEFINE_SPAPR_MACHINE(rhel810, "rhel8.1.0", false);
+
+/*
+ * pseries-rhel8.0.0
+ * like pseries-3.1 and pseries-4.0
+ * except SPAPR_CAP_CFPC, SPAPR_CAP_SBBC and SPAPR_CAP_IBS
+ * that have been backported to pseries-rhel8.0.0
+ */
+
+static void spapr_machine_rhel800_class_options(MachineClass *mc)
+{
+ SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
+
+ spapr_machine_rhel810_class_options(mc);
+ compat_props_add(mc->compat_props, hw_compat_rhel_8_0,
+ hw_compat_rhel_8_0_len);
+
+ /* pseries-4.0 */
+ smc->phb_placement = phb_placement_4_0;
+ smc->irq = &spapr_irq_xics;
+ smc->pre_4_1_migration = true;
+
+ /* pseries-3.1 */
+ mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("power8_v2.0");
+ smc->update_dt_enabled = false;
+ smc->dr_phb_enabled = false;
+ smc->broken_host_serial_model = true;
+ smc->default_caps.caps[SPAPR_CAP_LARGE_DECREMENTER] = SPAPR_CAP_OFF;
+}
+
+DEFINE_SPAPR_MACHINE(rhel800, "rhel8.0.0", false);
+
+/*
+ * pseries-rhel7.6.0
+ * like spapr_compat_2_12 and spapr_compat_3_0
+ * spapr_compat_0 is empty
+ */
+GlobalProperty spapr_compat_rhel7_6[] = {
+ { TYPE_POWERPC_CPU, "pre-3.0-migration", "on" },
+ { TYPE_SPAPR_CPU_CORE, "pre-3.0-migration", "on" },
+};
+const size_t spapr_compat_rhel7_6_len = G_N_ELEMENTS(spapr_compat_rhel7_6);
+
+
+static void spapr_machine_rhel760_class_options(MachineClass *mc)
+{
+ SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
+
+ spapr_machine_rhel800_class_options(mc);
+ compat_props_add(mc->compat_props, hw_compat_rhel_7_6, hw_compat_rhel_7_6_len);
+ compat_props_add(mc->compat_props, spapr_compat_rhel7_6, spapr_compat_rhel7_6_len);
+
+ /* from spapr_machine_3_0_class_options() */
+ smc->legacy_irq_allocation = true;
+ smc->nr_xirqs = 0x400;
+ smc->irq = &spapr_irq_xics_legacy;
+
+ /* from spapr_machine_2_12_class_options() */
+ /* We depend on kvm_enabled() to choose a default value for the
+ * hpt-max-page-size capability. Of course we can't do it here
+ * because this is too early and the HW accelerator isn't initialzed
+ * yet. Postpone this to machine init (see default_caps_with_cpu()).
+ */
+ smc->default_caps.caps[SPAPR_CAP_HPT_MAXPAGESIZE] = 0;
+
+ /* SPAPR_CAP_WORKAROUND enabled in pseries-rhel800 by
+ * f21757edc554
+ * "Enable mitigations by default for pseries-4.0 machine type")
+ */
+ smc->default_caps.caps[SPAPR_CAP_CFPC] = SPAPR_CAP_BROKEN;
+ smc->default_caps.caps[SPAPR_CAP_SBBC] = SPAPR_CAP_BROKEN;
+ smc->default_caps.caps[SPAPR_CAP_IBS] = SPAPR_CAP_BROKEN;
+}
+
+DEFINE_SPAPR_MACHINE(rhel760, "rhel7.6.0", false);
+
+/*
+ * pseries-rhel7.6.0-sxxm
+ *
+ * pseries-rhel7.6.0 with speculative execution exploit mitigations enabled by default
+ */
+
+static void spapr_machine_rhel760sxxm_class_options(MachineClass *mc)
+{
+ SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
+
+ spapr_machine_rhel760_class_options(mc);
+ smc->default_caps.caps[SPAPR_CAP_CFPC] = SPAPR_CAP_WORKAROUND;
+ smc->default_caps.caps[SPAPR_CAP_SBBC] = SPAPR_CAP_WORKAROUND;
+ smc->default_caps.caps[SPAPR_CAP_IBS] = SPAPR_CAP_FIXED_CCD;
+}
+
+DEFINE_SPAPR_MACHINE(rhel760sxxm, "rhel7.6.0-sxxm", false);
+
+static void spapr_machine_rhel750_class_options(MachineClass *mc)
+{
+ spapr_machine_rhel760_class_options(mc);
+ compat_props_add(mc->compat_props, hw_compat_rhel_7_5, hw_compat_rhel_7_5_len);
+
+}
+
+DEFINE_SPAPR_MACHINE(rhel750, "rhel7.5.0", false);
+
+/*
+ * pseries-rhel7.5.0-sxxm
+ *
+ * pseries-rhel7.5.0 with speculative execution exploit mitigations enabled by default
+ */
+
+static void spapr_machine_rhel750sxxm_class_options(MachineClass *mc)
+{
+ SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
+
+ spapr_machine_rhel750_class_options(mc);
+ smc->default_caps.caps[SPAPR_CAP_CFPC] = SPAPR_CAP_WORKAROUND;
+ smc->default_caps.caps[SPAPR_CAP_SBBC] = SPAPR_CAP_WORKAROUND;
+ smc->default_caps.caps[SPAPR_CAP_IBS] = SPAPR_CAP_FIXED_CCD;
+}
+
+DEFINE_SPAPR_MACHINE(rhel750sxxm, "rhel7.5.0-sxxm", false);
+
+/*
+ * pseries-rhel7.4.0
+ * like spapr_compat_2_9
+ */
+GlobalProperty spapr_compat_rhel7_4[] = {
+ { TYPE_POWERPC_CPU, "pre-2.10-migration", "on" },
+};
+const size_t spapr_compat_rhel7_4_len = G_N_ELEMENTS(spapr_compat_rhel7_4);
+
+static void spapr_machine_rhel740_class_options(MachineClass *mc)
+{
+ SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
+
+ spapr_machine_rhel750_class_options(mc);
+ compat_props_add(mc->compat_props, hw_compat_rhel_7_4, hw_compat_rhel_7_4_len);
+ compat_props_add(mc->compat_props, spapr_compat_rhel7_4, spapr_compat_rhel7_4_len);
+ mc->numa_auto_assign_ram = numa_legacy_auto_assign_ram;
+ smc->has_power9_support = false;
+ smc->pre_2_10_has_unused_icps = true;
+ smc->resize_hpt_default = SPAPR_RESIZE_HPT_DISABLED;
+ smc->default_caps.caps[SPAPR_CAP_HTM] = SPAPR_CAP_ON;
+}
+
+DEFINE_SPAPR_MACHINE(rhel740, "rhel7.4.0", false);
+
+/*
+ * pseries-rhel7.4.0-sxxm
+ *
+ * pseries-rhel7.4.0 with speculative execution exploit mitigations enabled by default
+ */
+
+static void spapr_machine_rhel740sxxm_class_options(MachineClass *mc)
+{
+ SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
+
+ spapr_machine_rhel740_class_options(mc);
+ smc->default_caps.caps[SPAPR_CAP_CFPC] = SPAPR_CAP_WORKAROUND;
+ smc->default_caps.caps[SPAPR_CAP_SBBC] = SPAPR_CAP_WORKAROUND;
+ smc->default_caps.caps[SPAPR_CAP_IBS] = SPAPR_CAP_FIXED_CCD;
+}
+
+DEFINE_SPAPR_MACHINE(rhel740sxxm, "rhel7.4.0-sxxm", false);
+
+/*
+ * pseries-rhel7.3.0
+ * like spapr_compat_2_6/_2_7/_2_8 but "ddw" has been backported to RHEL7_3
+ */
+GlobalProperty spapr_compat_rhel7_3[] = {
+ { TYPE_SPAPR_PCI_HOST_BRIDGE, "mem_win_size", "0xf80000000" },
+ { TYPE_SPAPR_PCI_HOST_BRIDGE, "mem64_win_size", "0" },
+ { TYPE_POWERPC_CPU, "pre-2.8-migration", "on" },
+ { TYPE_SPAPR_PCI_HOST_BRIDGE, "pre-2.8-migration", "on" },
+ { TYPE_SPAPR_PCI_HOST_BRIDGE, "pcie-extended-configuration-space", "off" },
+};
+const size_t spapr_compat_rhel7_3_len = G_N_ELEMENTS(spapr_compat_rhel7_3);
+
+static void spapr_machine_rhel730_class_options(MachineClass *mc)
+{
+ SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
+
+ spapr_machine_rhel740_class_options(mc);
+ mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("power7_v2.3");
+ mc->default_machine_opts = "modern-hotplug-events=off";
+ compat_props_add(mc->compat_props, hw_compat_rhel_7_3, hw_compat_rhel_7_3_len);
+ compat_props_add(mc->compat_props, spapr_compat_rhel7_3, spapr_compat_rhel7_3_len);
+
+ smc->phb_placement = phb_placement_2_7;
+}
+
+DEFINE_SPAPR_MACHINE(rhel730, "rhel7.3.0", false);
+
+/*
+ * pseries-rhel7.3.0-sxxm
+ *
+ * pseries-rhel7.3.0 with speculative execution exploit mitigations enabled by default
+ */
+
+static void spapr_machine_rhel730sxxm_class_options(MachineClass *mc)
+{
+ SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
+
+ spapr_machine_rhel730_class_options(mc);
+ smc->default_caps.caps[SPAPR_CAP_CFPC] = SPAPR_CAP_WORKAROUND;
+ smc->default_caps.caps[SPAPR_CAP_SBBC] = SPAPR_CAP_WORKAROUND;
+ smc->default_caps.caps[SPAPR_CAP_IBS] = SPAPR_CAP_FIXED_CCD;
+}
+
+DEFINE_SPAPR_MACHINE(rhel730sxxm, "rhel7.3.0-sxxm", false);
+
+/*
+ * pseries-rhel7.2.0
+ */
+/* Should be like spapr_compat_2_5 + 2_4 + 2_3, but "dynamic-reconfiguration"
+ * has been backported to RHEL7_2 so we don't need it here.
+ */
+
+GlobalProperty spapr_compat_rhel7_2[] = {
+ { "spapr-vlan", "use-rx-buffer-pools", "off" },
+ { TYPE_SPAPR_PCI_HOST_BRIDGE, "ddw", "off" },
+};
+const size_t spapr_compat_rhel7_2_len = G_N_ELEMENTS(spapr_compat_rhel7_2);
+
+static void spapr_machine_rhel720_class_options(MachineClass *mc)
+{
+ SpaprMachineClass *smc = SPAPR_MACHINE_CLASS(mc);
+
+ spapr_machine_rhel730_class_options(mc);
+ smc->use_ohci_by_default = true;
+ mc->has_hotpluggable_cpus = NULL;
+ compat_props_add(mc->compat_props, hw_compat_rhel_7_2, hw_compat_rhel_7_2_len);
+ compat_props_add(mc->compat_props, spapr_compat_rhel7_2, spapr_compat_rhel7_2_len);
+}
+
+DEFINE_SPAPR_MACHINE(rhel720, "rhel7.2.0", false);
static void spapr_machine_register_types(void)
{
diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
index 301cd7b4e4..ba5a8fb82b 100644
--- a/hw/ppc/spapr_cpu_core.c
+++ b/hw/ppc/spapr_cpu_core.c
@@ -24,6 +24,7 @@
#include "sysemu/reset.h"
#include "sysemu/hw_accel.h"
#include "qemu/error-report.h"
+#include "cpu-models.h"
static void spapr_reset_vcpu(PowerPCCPU *cpu)
{
@@ -242,6 +243,7 @@ static void spapr_realize_vcpu(PowerPCCPU *cpu, SpaprMachineState *spapr,
CPUPPCState *env = &cpu->env;
CPUState *cs = CPU(cpu);
Error *local_err = NULL;
+ SpaprMachineClass *smc = SPAPR_MACHINE_GET_CLASS(spapr);
object_property_set_bool(OBJECT(cpu), true, "realized", &local_err);
if (local_err) {
@@ -254,6 +256,17 @@ static void spapr_realize_vcpu(PowerPCCPU *cpu, SpaprMachineState *spapr,
cpu_ppc_set_vhyp(cpu, PPC_VIRTUAL_HYPERVISOR(spapr));
kvmppc_set_papr(cpu);
+ if (!smc->has_power9_support &&
+ (((spapr->max_compat_pvr &&
+ ppc_compat_cmp(spapr->max_compat_pvr,
+ CPU_POWERPC_LOGICAL_3_00) >= 0)) ||
+ (!spapr->max_compat_pvr &&
+ ppc_check_compat(cpu, CPU_POWERPC_LOGICAL_3_00, 0, 0)))) {
+ error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
+ "POWER9 CPU is not supported by this machine class");
+ return;
+ }
+
if (spapr_irq_cpu_intc_create(spapr, cpu, &local_err) < 0) {
goto error_intc_create;
}
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index d5ab5ea7b2..aa89cc4a95 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -125,6 +125,7 @@ struct SpaprMachineClass {
bool linux_pci_probe;
bool smp_threads_vsmt; /* set VSMT to smp_threads by default */
+ bool has_power9_support;
void (*phb_placement)(SpaprMachineState *spapr, uint32_t index,
uint64_t *buid, hwaddr *pio,
hwaddr *mmio32, hwaddr *mmio64,
diff --git a/target/ppc/compat.c b/target/ppc/compat.c
index 7de4bf3122..3e2e35342d 100644
--- a/target/ppc/compat.c
+++ b/target/ppc/compat.c
@@ -105,8 +105,19 @@ static const CompatInfo *compat_by_pvr(uint32_t pvr)
return NULL;
}
+long ppc_compat_cmp(uint32_t pvr1, uint32_t pvr2)
+{
+ const CompatInfo *compat1 = compat_by_pvr(pvr1);
+ const CompatInfo *compat2 = compat_by_pvr(pvr2);
+
+ g_assert(compat1);
+ g_assert(compat2);
+
+ return compat1 - compat2;
+}
+
static bool pcc_compat(PowerPCCPUClass *pcc, uint32_t compat_pvr,
- uint32_t min_compat_pvr, uint32_t max_compat_pvr)
+ uint32_t min_compat_pvr, uint32_t max_compat_pvr)
{
const CompatInfo *compat = compat_by_pvr(compat_pvr);
const CompatInfo *min = compat_by_pvr(min_compat_pvr);
diff --git a/target/ppc/cpu.h b/target/ppc/cpu.h
index e3e82327b7..5c53801cfd 100644
--- a/target/ppc/cpu.h
+++ b/target/ppc/cpu.h
@@ -1367,6 +1367,7 @@ static inline int cpu_mmu_index(CPUPPCState *env, bool ifetch)
/* Compatibility modes */
#if defined(TARGET_PPC64)
+long ppc_compat_cmp(uint32_t pvr1, uint32_t pvr2);
bool ppc_check_compat(PowerPCCPU *cpu, uint32_t compat_pvr,
uint32_t min_compat_pvr, uint32_t max_compat_pvr);
bool ppc_type_check_compat(const char *cputype, uint32_t compat_pvr,
--
2.21.0

126
SOURCES/0010-Add-s390x-machine-types.patch Normal file
View File

@ -0,0 +1,126 @@
From 0842700b3a01891c316e9169fa651f26714cafa5 Mon Sep 17 00:00:00 2001
From: Miroslav Rezanina <mrezanin@redhat.com>
Date: Fri, 19 Oct 2018 13:47:32 +0200
Subject: Add s390x machine types
Adding changes to add RHEL machine types for s390x architecture.
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Rebase changes (weekly-4.1.0):
- Use upstream compat handling
Merged patches (3.1.0):
- 29df663 s390x/cpumodel: default enable bpb and ppa15 for z196 and later
Merged patches (4.1.0):
- 6c200d665b hw/s390x/s390-virtio-ccw: Add machine types for RHEL8.0.0
Merged patches (4.2.0):
- fb192e5 redhat: s390x: Rename s390-ccw-virtio-rhel8.0.0 to s390-ccw-virtio-rhel8.1.0
- a9b22e8 redhat: s390x: Add proper compatibility options for the -rhel7.6.0 machine
- hw/s390x: Add the s390-ccw-virtio-rhel8.2.0 machine types (patch 92954)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/s390x/s390-virtio-ccw.c | 70 +++++++++++++++++++++++++++++++++++++-
1 file changed, 69 insertions(+), 1 deletion(-)
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index d3edeef0ad..c2c83d2fce 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -615,7 +615,7 @@ bool css_migration_enabled(void)
{ \
MachineClass *mc = MACHINE_CLASS(oc); \
ccw_machine_##suffix##_class_options(mc); \
- mc->desc = "VirtIO-ccw based S390 machine v" verstr; \
+ mc->desc = "VirtIO-ccw based S390 machine " verstr; \
if (latest) { \
mc->alias = "s390-ccw-virtio"; \
mc->is_default = 1; \
@@ -639,6 +639,7 @@ bool css_migration_enabled(void)
} \
type_init(ccw_machine_register_##suffix)
+#if 0 /* Disabled for Red Hat Enterprise Linux */
static void ccw_machine_4_2_instance_options(MachineState *machine)
{
}
@@ -866,6 +867,73 @@ static void ccw_machine_2_4_class_options(MachineClass *mc)
compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
}
DEFINE_CCW_MACHINE(2_4, "2.4", false);
+#endif
+
+static void ccw_machine_rhel820_instance_options(MachineState *machine)
+{
+}
+
+static void ccw_machine_rhel820_class_options(MachineClass *mc)
+{
+}
+DEFINE_CCW_MACHINE(rhel820, "rhel8.2.0", true);
+
+static void ccw_machine_rhel760_instance_options(MachineState *machine)
+{
+ static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 };
+
+ ccw_machine_rhel820_instance_options(machine);
+
+ s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat);
+
+ /* The multiple-epoch facility was not available with rhel7.6.0 on z14GA1 */
+ s390_cpudef_featoff(14, 1, S390_FEAT_MULTIPLE_EPOCH);
+ s390_cpudef_featoff(14, 1, S390_FEAT_PTFF_QSIE);
+ s390_cpudef_featoff(14, 1, S390_FEAT_PTFF_QTOUE);
+ s390_cpudef_featoff(14, 1, S390_FEAT_PTFF_STOE);
+ s390_cpudef_featoff(14, 1, S390_FEAT_PTFF_STOUE);
+}
+
+static void ccw_machine_rhel760_class_options(MachineClass *mc)
+{
+ ccw_machine_rhel820_class_options(mc);
+ /* We never published the s390x version of RHEL-AV 8.0 and 8.1, so add this here */
+ compat_props_add(mc->compat_props, hw_compat_rhel_8_0, hw_compat_rhel_8_0_len);
+ compat_props_add(mc->compat_props, hw_compat_rhel_7_6, hw_compat_rhel_7_6_len);
+}
+DEFINE_CCW_MACHINE(rhel760, "rhel7.6.0", false);
+
+static void ccw_machine_rhel750_instance_options(MachineState *machine)
+{
+ static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 };
+ ccw_machine_rhel760_instance_options(machine);
+
+ /* before 2.12 we emulated the very first z900, and RHEL 7.5 is
+ based on 2.10 */
+ s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat);
+
+ /* bpb and ppa15 were only in the full model in RHEL 7.5 */
+ s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15);
+ s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB);
+}
+
+GlobalProperty ccw_compat_rhel_7_5[] = {
+ {
+ .driver = TYPE_SCLP_EVENT_FACILITY,
+ .property = "allow_all_mask_sizes",
+ .value = "off",
+ },
+};
+const size_t ccw_compat_rhel_7_5_len = G_N_ELEMENTS(ccw_compat_rhel_7_5);
+
+static void ccw_machine_rhel750_class_options(MachineClass *mc)
+{
+ ccw_machine_rhel760_class_options(mc);
+ compat_props_add(mc->compat_props, hw_compat_rhel_7_5, hw_compat_rhel_7_5_len);
+ compat_props_add(mc->compat_props, ccw_compat_rhel_7_5, ccw_compat_rhel_7_5_len);
+ S390_MACHINE_CLASS(mc)->hpage_1m_allowed = false;
+}
+DEFINE_CCW_MACHINE(rhel750, "rhel7.5.0", false);
static void ccw_machine_register_types(void)
{
--
2.21.0

897
SOURCES/0011-Add-x86_64-machine-types.patch Normal file
View File

@ -0,0 +1,897 @@
From 2ebaeca6e26950f401a8169d1324be2bafd11741 Mon Sep 17 00:00:00 2001
From: Miroslav Rezanina <mrezanin@redhat.com>
Date: Fri, 19 Oct 2018 13:10:31 +0200
Subject: Add x86_64 machine types
Adding changes to add RHEL machine types for x86_64 architecture.
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Rebase changes (qemu-4.0.0):
- Use upstream compat handling
Rebase notes (3.1.0):
- Removed xsave changes
Rebase notes (4.1.0):
- Updated format for compat structures
Rebase notes (4.2.0-rc2):
- Use X86MachineClass for save_tsc_khz (upstream change)
Merged patches (4.1.0):
- f4dc802 pc: 7.5 compat entries
- 456ed3e pc: PC_RHEL7_6_COMPAT
- 04119ee pc: Add compat for pc-i440fx-rhel7.6.0 machine type
- b3b3687 pc: Add pc-q35-8.0.0 machine type
- 8d46fc6 pc: Add x-migrate-smi-count=off to PC_RHEL7_6_COMPAT
- 1de7949 kvm: clear out KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT for older machine types
- 18cf0d7 target/i386: Disable MPX support on named CPU models (partialy)
- 2660667 rhel: Set host-phys-bits-limit=48 on rhel machine-types
Merged patches (4.2.0):
- 7d5c2ef pc: Don't make die-id mandatory unless necessary
- e42808c x86 machine types: pc_rhel_8_0_compat
- 9de83a8 x86 machine types: q35: Fixup units_per_default_bus
- 6df1559 x86 machine types: Fixup dynamic sysbus entries
- 0784125 x86 machine types: add pc-q35-rhel8.1.0
- machines/x86: Add rhel 8.2 machine type (patch 92959)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/i386/acpi-build.c | 3 +
hw/i386/pc.c | 263 ++++++++++++++++++++++++++++++++++++++++++-
hw/i386/pc_piix.c | 210 +++++++++++++++++++++++++++++++++-
hw/i386/pc_q35.c | 156 ++++++++++++++++++++++++-
include/hw/boards.h | 2 +
include/hw/i386/pc.h | 33 ++++++
target/i386/cpu.c | 9 +-
target/i386/kvm.c | 4 +
8 files changed, 673 insertions(+), 7 deletions(-)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 12ff55fcfb..64001893ab 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -204,6 +204,9 @@ static void acpi_get_pm_info(MachineState *machine, AcpiPmInfo *pm)
pm->fadt.reset_reg = r;
pm->fadt.reset_val = 0xf;
pm->fadt.flags |= 1 << ACPI_FADT_F_RESET_REG_SUP;
+ if (object_property_get_bool(lpc,
+ "__com.redhat_force-rev1-fadt", NULL))
+ pm->fadt.rev = 1;
pm->cpu_hp_io_base = ICH9_CPU_HOTPLUG_IO_BASE;
}
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index ac08e63604..61e70e4811 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -344,6 +344,261 @@ GlobalProperty pc_compat_1_4[] = {
};
const size_t pc_compat_1_4_len = G_N_ELEMENTS(pc_compat_1_4);
+/* This macro is for changes to properties that are RHEL specific,
+ * different to the current upstream and to be applied to the latest
+ * machine type.
+ */
+GlobalProperty pc_rhel_compat[] = {
+ { TYPE_X86_CPU, "host-phys-bits", "on" },
+ { TYPE_X86_CPU, "host-phys-bits-limit", "48" },
+ /* bz 1508330 */
+ { "vfio-pci", "x-no-geforce-quirks", "on" },
+};
+const size_t pc_rhel_compat_len = G_N_ELEMENTS(pc_rhel_compat);
+
+/* pc_rhel_8_1_compat is empty since pc_4_1_compat is */
+GlobalProperty pc_rhel_8_1_compat[] = { };
+const size_t pc_rhel_8_1_compat_len = G_N_ELEMENTS(pc_rhel_8_1_compat);
+
+GlobalProperty pc_rhel_8_0_compat[] = {
+ /* pc_rhel_8_0_compat from pc_compat_3_1 */
+ { "intel-iommu", "dma-drain", "off" },
+ /* pc_rhel_8_0_compat from pc_compat_3_1 */
+ { "Opteron_G3" "-" TYPE_X86_CPU, "rdtscp", "off" },
+ /* pc_rhel_8_0_compat from pc_compat_3_1 */
+ { "Opteron_G4" "-" TYPE_X86_CPU, "rdtscp", "off" },
+ /* pc_rhel_8_0_compat from pc_compat_3_1 */
+ { "Opteron_G4" "-" TYPE_X86_CPU, "npt", "off" },
+ /* pc_rhel_8_0_compat from pc_compat_3_1 */
+ { "Opteron_G4" "-" TYPE_X86_CPU, "nrip-save", "off" },
+ /* pc_rhel_8_0_compat from pc_compat_3_1 */
+ { "Opteron_G5" "-" TYPE_X86_CPU, "rdtscp", "off" },
+ /* pc_rhel_8_0_compat from pc_compat_3_1 */
+ { "Opteron_G5" "-" TYPE_X86_CPU, "npt", "off" },
+ /* pc_rhel_8_0_compat from pc_compat_3_1 */
+ { "Opteron_G5" "-" TYPE_X86_CPU, "nrip-save", "off" },
+ /* pc_rhel_8_0_compat from pc_compat_3_1 */
+ { "EPYC" "-" TYPE_X86_CPU, "npt", "off" },
+ /* pc_rhel_8_0_compat from pc_compat_3_1 */
+ { "EPYC" "-" TYPE_X86_CPU, "nrip-save", "off" },
+ /* pc_rhel_8_0_compat from pc_compat_3_1 */
+ { "EPYC-IBPB" "-" TYPE_X86_CPU, "npt", "off" },
+ /* pc_rhel_8_0_compat from pc_compat_3_1 */
+ { "EPYC-IBPB" "-" TYPE_X86_CPU, "nrip-save", "off" },
+ /** The mpx=on entries from pc_compat_3_1 are in pc_rhel_7_6_compat **/
+ /* pc_rhel_8_0_compat from pc_compat_3_1 */
+ { "Cascadelake-Server" "-" TYPE_X86_CPU, "stepping", "5" },
+ /* pc_rhel_8_0_compat from pc_compat_3_1 */
+ { TYPE_X86_CPU, "x-intel-pt-auto-level", "off" },
+};
+const size_t pc_rhel_8_0_compat_len = G_N_ELEMENTS(pc_rhel_8_0_compat);
+
+/* Similar to PC_COMPAT_3_0 + PC_COMPAT_2_12, but:
+ * all of the 2_12 stuff was already in 7.6 from bz 1481253
+ * x-migrate-smi-count comes from PC_COMPAT_2_11 but
+ * is really tied to kernel version so keep it off on 7.x
+ * machine types irrespective of host.
+ */
+GlobalProperty pc_rhel_7_6_compat[] = {
+ /* pc_rhel_7_6_compat from pc_compat_3_0 */
+ { TYPE_X86_CPU, "x-hv-synic-kvm-only", "on" },
+ /* pc_rhel_7_6_compat from pc_compat_3_0 */
+ { "Skylake-Server" "-" TYPE_X86_CPU, "pku", "off" },
+ /* pc_rhel_7_6_compat from pc_compat_3_0 */
+ { "Skylake-Server-IBRS" "-" TYPE_X86_CPU, "pku", "off" },
+ /* pc_rhel_7_6_compat from pc_compat_2_11 */
+ { TYPE_X86_CPU, "x-migrate-smi-count", "off" },
+ /* pc_rhel_7_6_compat from pc_compat_2_11 */
+ { "Skylake-Client" "-" TYPE_X86_CPU, "mpx", "on" },
+ /* pc_rhel_7_6_compat from pc_compat_2_11 */
+ { "Skylake-Client-IBRS" "-" TYPE_X86_CPU, "mpx", "on" },
+ /* pc_rhel_7_6_compat from pc_compat_2_11 */
+ { "Skylake-Server" "-" TYPE_X86_CPU, "mpx", "on" },
+ /* pc_rhel_7_6_compat from pc_compat_2_11 */
+ { "Skylake-Server-IBRS" "-" TYPE_X86_CPU, "mpx", "on" },
+ /* pc_rhel_7_6_compat from pc_compat_2_11 */
+ { "Cascadelake-Server" "-" TYPE_X86_CPU, "mpx", "on" },
+ /* pc_rhel_7_6_compat from pc_compat_2_11 */
+ { "Icelake-Client" "-" TYPE_X86_CPU, "mpx", "on" },
+ /* pc_rhel_7_6_compat from pc_compat_2_11 */
+ { "Icelake-Server" "-" TYPE_X86_CPU, "mpx", "on" },
+};
+const size_t pc_rhel_7_6_compat_len = G_N_ELEMENTS(pc_rhel_7_6_compat);
+
+/* Similar to PC_COMPAT_2_11 + PC_COMPAT_2_10, but:
+ * - x-hv-max-vps was backported to 7.5
+ * - x-pci-hole64-fix was backported to 7.5
+ */
+GlobalProperty pc_rhel_7_5_compat[] = {
+ /* pc_rhel_7_5_compat from pc_compat_2_11 */
+ { "Skylake-Server" "-" TYPE_X86_CPU, "clflushopt", "off" },
+ /* pc_rhel_7_5_compat from pc_compat_2_12 */
+ { TYPE_X86_CPU, "legacy-cache", "on" },
+ /* pc_rhel_7_5_compat from pc_compat_2_12 */
+ { TYPE_X86_CPU, "topoext", "off" },
+ /* pc_rhel_7_5_compat from pc_compat_2_12 */
+ { "EPYC-" TYPE_X86_CPU, "xlevel", stringify(0x8000000a) },
+ /* pc_rhel_7_5_compat from pc_compat_2_12 */
+ { "EPYC-IBPB-" TYPE_X86_CPU, "xlevel", stringify(0x8000000a) },
+};
+const size_t pc_rhel_7_5_compat_len = G_N_ELEMENTS(pc_rhel_7_5_compat);
+
+GlobalProperty pc_rhel_7_4_compat[] = {
+ /* pc_rhel_7_4_compat from pc_compat_2_9 */
+ { "mch", "extended-tseg-mbytes", stringify(0) },
+ /* bz 1489800 */
+ { "ICH9-LPC", "__com.redhat_force-rev1-fadt", "on" },
+ /* pc_rhel_7_4_compat from pc_compat_2_10 */
+ { "i440FX-pcihost", "x-pci-hole64-fix", "off" },
+ /* pc_rhel_7_4_compat from pc_compat_2_10 */
+ { "q35-pcihost", "x-pci-hole64-fix", "off" },
+ /* pc_rhel_7_4_compat from pc_compat_2_10 */
+ { TYPE_X86_CPU, "x-hv-max-vps", "0x40" },
+};
+const size_t pc_rhel_7_4_compat_len = G_N_ELEMENTS(pc_rhel_7_4_compat);
+
+GlobalProperty pc_rhel_7_3_compat[] = {
+ /* pc_rhel_7_3_compat from pc_compat_2_8 */
+ { "kvmclock", "x-mach-use-reliable-get-clock", "off" },
+ /* pc_rhel_7_3_compat from pc_compat_2_7 */
+ { TYPE_X86_CPU, "l3-cache", "off" },
+ /* pc_rhel_7_3_compat from pc_compat_2_7 */
+ { TYPE_X86_CPU, "full-cpuid-auto-level", "off" },
+ /* pc_rhel_7_3_compat from pc_compat_2_7 */
+ { "Opteron_G3" "-" TYPE_X86_CPU, "family", "15" },
+ /* pc_rhel_7_3_compat from pc_compat_2_7 */
+ { "Opteron_G3" "-" TYPE_X86_CPU, "model", "6" },
+ /* pc_rhel_7_3_compat from pc_compat_2_7 */
+ { "Opteron_G3" "-" TYPE_X86_CPU, "stepping", "1" },
+ /* pc_rhel_7_3_compat from pc_compat_2_7 */
+ { "isa-pcspk", "migrate", "off" },
+ /* pc_rhel_7_3_compat from pc_compat_2_6 */
+ { TYPE_X86_CPU, "cpuid-0xb", "off" },
+ /* pc_rhel_7_3_compat from pc_compat_2_8 */
+ { "ICH9-LPC", "x-smi-broadcast", "off" },
+ /* pc_rhel_7_3_compat from pc_compat_2_8 */
+ { TYPE_X86_CPU, "vmware-cpuid-freq", "off" },
+ /* pc_rhel_7_3_compat from pc_compat_2_8 */
+ { "Haswell-" TYPE_X86_CPU, "stepping", "1" },
+ /* pc_rhel_7_3_compat from pc_compat_2_3 added in 2.9*/
+ { TYPE_X86_CPU, "kvm-no-smi-migration", "on" },
+};
+const size_t pc_rhel_7_3_compat_len = G_N_ELEMENTS(pc_rhel_7_3_compat);
+
+GlobalProperty pc_rhel_7_2_compat[] = {
+ { "phenom" "-" TYPE_X86_CPU, "rdtscp", "off"},
+ { "qemu64" "-" TYPE_X86_CPU, "sse4a", "on" },
+ { "qemu64" "-" TYPE_X86_CPU, "abm", "on" },
+ { "Haswell-" TYPE_X86_CPU, "abm", "off" },
+ { "Haswell-IBRS" "-" TYPE_X86_CPU, "abm", "off" },
+ { "Haswell-noTSX-" TYPE_X86_CPU, "abm", "off" },
+ { "Haswell-noTSX-IBRS" "-" TYPE_X86_CPU, "abm", "off" },
+ { "Broadwell-" TYPE_X86_CPU, "abm", "off" },
+ { "Broadwell-IBRS" "-" TYPE_X86_CPU, "abm", "off" },
+ { "Broadwell-noTSX-" TYPE_X86_CPU, "abm", "off" },
+ { "Broadwell-noTSX-IBRS" "-" TYPE_X86_CPU, "abm", "off" },
+ { "host" "-" TYPE_X86_CPU, "host-cache-info", "on" },
+ { TYPE_X86_CPU, "check", "off" },
+ { "qemu32" "-" TYPE_X86_CPU, "popcnt", "on" },
+ { TYPE_X86_CPU, "arat", "off" },
+ { "usb-redir", "streams", "off" },
+ { TYPE_X86_CPU, "fill-mtrr-mask", "off" },
+ { "apic-common", "legacy-instance-id", "on" },
+};
+const size_t pc_rhel_7_2_compat_len = G_N_ELEMENTS(pc_rhel_7_2_compat);
+
+GlobalProperty pc_rhel_7_1_compat[] = {
+ { "kvm64" "-" TYPE_X86_CPU, "vme", "off" },
+ { "kvm32" "-" TYPE_X86_CPU, "vme", "off" },
+ { "Conroe" "-" TYPE_X86_CPU, "vme", "off" },
+ { "Penryn" "-" TYPE_X86_CPU, "vme", "off" },
+ { "Nehalem" "-" TYPE_X86_CPU, "vme", "off" },
+ { "Nehalem-IBRS" "-" TYPE_X86_CPU, "vme", "off" },
+ { "Westmere" "-" TYPE_X86_CPU, "vme", "off" },
+ { "Westmere-IBRS" "-" TYPE_X86_CPU, "vme", "off" },
+ { "SandyBridge" "-" TYPE_X86_CPU, "vme", "off" },
+ { "SandyBridge-IBRS" "-" TYPE_X86_CPU, "vme", "off" },
+ { "Haswell" "-" TYPE_X86_CPU, "vme", "off" },
+ { "Haswell-IBRS" "-" TYPE_X86_CPU, "vme", "off" },
+ { "Broadwell" "-" TYPE_X86_CPU, "vme", "off" },
+ { "Broadwell-IBRS" "-" TYPE_X86_CPU, "vme", "off" },
+ { "Opteron_G1" "-" TYPE_X86_CPU, "vme", "off" },
+ { "Opteron_G2" "-" TYPE_X86_CPU, "vme", "off" },
+ { "Opteron_G3" "-" TYPE_X86_CPU, "vme", "off" },
+ { "Opteron_G4" "-" TYPE_X86_CPU, "vme", "off" },
+ { "Opteron_G5" "-" TYPE_X86_CPU, "vme", "off" },
+ { "Haswell" "-" TYPE_X86_CPU, "f16c", "off" },
+ { "Haswell-IBRS" "-" TYPE_X86_CPU, "f16c", "off" },
+ { "Haswell" "-" TYPE_X86_CPU, "rdrand", "off" },
+ { "Haswell-IBRS" "-" TYPE_X86_CPU, "rdrand", "off" },
+ { "Broadwell" "-" TYPE_X86_CPU, "f16c", "off" },
+ { "Broadwell-IBRS" "-" TYPE_X86_CPU, "f16c", "off" },
+ { "Broadwell" "-" TYPE_X86_CPU, "rdrand", "off" },
+ { "Broadwell-IBRS" "-" TYPE_X86_CPU, "rdrand", "off" },
+ { "coreduo" "-" TYPE_X86_CPU, "vmx", "on" },
+ { "core2duo" "-" TYPE_X86_CPU, "vmx", "on" },
+ { "qemu64" "-" TYPE_X86_CPU, "min-level", stringify(4) },
+ { "kvm64" "-" TYPE_X86_CPU, "min-level", stringify(5) },
+ { "pentium3" "-" TYPE_X86_CPU, "min-level", stringify(2) },
+ { "n270" "-" TYPE_X86_CPU, "min-level", stringify(5) },
+ { "Conroe" "-" TYPE_X86_CPU, "min-level", stringify(4) },
+ { "Penryn" "-" TYPE_X86_CPU, "min-level", stringify(4) },
+ { "Nehalem" "-" TYPE_X86_CPU, "min-level", stringify(4) },
+ { "n270" "-" TYPE_X86_CPU, "min-xlevel", stringify(0x8000000a) },
+ { "Penryn" "-" TYPE_X86_CPU, "min-xlevel", stringify(0x8000000a) },
+ { "Conroe" "-" TYPE_X86_CPU, "min-xlevel", stringify(0x8000000a) },
+ { "Nehalem" "-" TYPE_X86_CPU, "min-xlevel", stringify(0x8000000a) },
+ { "Westmere" "-" TYPE_X86_CPU, "min-xlevel", stringify(0x8000000a) },
+ { "SandyBridge" "-" TYPE_X86_CPU, "min-xlevel", stringify(0x8000000a) },
+ { "IvyBridge" "-" TYPE_X86_CPU, "min-xlevel", stringify(0x8000000a) },
+ { "Haswell" "-" TYPE_X86_CPU, "min-xlevel", stringify(0x8000000a) },
+ { "Haswell-noTSX" "-" TYPE_X86_CPU, "min-xlevel", stringify(0x8000000a) },
+ { "Broadwell" "-" TYPE_X86_CPU, "min-xlevel", stringify(0x8000000a) },
+ { "Broadwell-noTSX" "-" TYPE_X86_CPU, "min-xlevel", stringify(0x8000000a) },
+};
+const size_t pc_rhel_7_1_compat_len = G_N_ELEMENTS(pc_rhel_7_1_compat);
+
+/*
+ * The PC_RHEL_*_COMPAT serve the same purpose for RHEL-7 machine
+ * types as the PC_COMPAT_* do for upstream types.
+ * PC_RHEL_7_*_COMPAT apply both to i440fx and q35 types.
+ */
+
+/*
+ * RHEL-7 is based on QEMU 1.5.3, so this needs the PC_COMPAT_*
+ * between our base and 1.5, less stuff backported to RHEL-7.0
+ * (usb-device.msos-desc), less stuff for devices we changed
+ * (qemu64-x86_64-cpu) or don't support (hpet, pci-serial-2x,
+ * pci-serial-4x) in 7.0.
+ */
+GlobalProperty pc_rhel_7_0_compat[] = {
+ { "virtio-scsi-pci", "any_layout", "off" },
+ { "PIIX4_PM", "memory-hotplug-support", "off" },
+ { "apic", "version", stringify(0x11) },
+ { "nec-usb-xhci", "superspeed-ports-first", "off" },
+ { "nec-usb-xhci", "force-pcie-endcap", "on" },
+ { "pci-serial", "prog_if", stringify(0) },
+ { "virtio-net-pci", "guest_announce", "off" },
+ { "ICH9-LPC", "memory-hotplug-support", "off" },
+ { "xio3130-downstream", COMPAT_PROP_PCP, "off" },
+ { "ioh3420", COMPAT_PROP_PCP, "off" },
+ { "PIIX4_PM", "acpi-pci-hotplug-with-bridge-support", "off" },
+ { "e1000", "mitigation", "off" },
+ { "virtio-net-pci", "ctrl_guest_offloads", "off" },
+ { "Conroe" "-" TYPE_X86_CPU, "x2apic", "on" },
+ { "Penryn" "-" TYPE_X86_CPU, "x2apic", "on" },
+ { "Nehalem" "-" TYPE_X86_CPU, "x2apic", "on" },
+ { "Nehalem-IBRS" "-" TYPE_X86_CPU, "x2apic", "on" },
+ { "Westmere" "-" TYPE_X86_CPU, "x2apic", "on" },
+ { "Westmere-IBRS" "-" TYPE_X86_CPU, "x2apic", "on" },
+ { "Opteron_G1" "-" TYPE_X86_CPU, "x2apic", "on" },
+ { "Opteron_G2" "-" TYPE_X86_CPU, "x2apic", "on" },
+ { "Opteron_G3" "-" TYPE_X86_CPU, "x2apic", "on" },
+ { "Opteron_G4" "-" TYPE_X86_CPU, "x2apic", "on" },
+ { "Opteron_G5" "-" TYPE_X86_CPU, "x2apic", "on" },
+};
+const size_t pc_rhel_7_0_compat_len = G_N_ELEMENTS(pc_rhel_7_0_compat);
+
void gsi_handler(void *opaque, int n, int level)
{
GSIState *s = opaque;
@@ -1225,7 +1480,8 @@ void pc_memory_init(PCMachineState *pcms,
option_rom_mr = g_malloc(sizeof(*option_rom_mr));
memory_region_init_ram(option_rom_mr, NULL, "pc.rom", PC_ROM_SIZE,
&error_fatal);
- if (pcmc->pci_enabled) {
+ /* RH difference: See bz 1489800, explicitly make ROM ro */
+ if (pcmc->pc_rom_ro) {
memory_region_set_readonly(option_rom_mr, true);
}
memory_region_add_subregion_overlap(rom_memory,
@@ -2198,6 +2454,8 @@ static void pc_machine_class_init(ObjectClass *oc, void *data)
pcmc->linuxboot_dma_enabled = true;
pcmc->pvh_enabled = true;
assert(!mc->get_hotplug_handler);
+ pcmc->pc_rom_ro = true;
+ mc->async_pf_vmexit_disable = false;
mc->get_hotplug_handler = pc_get_hotplug_handler;
mc->hotplug_allowed = pc_hotplug_allowed;
mc->cpu_index_to_instance_props = x86_cpu_index_to_props;
@@ -2209,7 +2467,8 @@ static void pc_machine_class_init(ObjectClass *oc, void *data)
mc->hot_add_cpu = pc_hot_add_cpu;
mc->smp_parse = pc_smp_parse;
mc->block_default_type = IF_IDE;
- mc->max_cpus = 255;
+ /* 240: max CPU count for RHEL */
+ mc->max_cpus = 240;
mc->reset = pc_machine_reset;
mc->wakeup = pc_machine_wakeup;
hc->pre_plug = pc_machine_device_pre_plug_cb;
diff --git a/hw/i386/pc_piix.c b/hw/i386/pc_piix.c
index 1bd70d1abb..bd7fdb99bb 100644
--- a/hw/i386/pc_piix.c
+++ b/hw/i386/pc_piix.c
@@ -53,6 +53,7 @@
#include "cpu.h"
#include "qapi/error.h"
#include "qemu/error-report.h"
+#include "migration/migration.h"
#ifdef CONFIG_XEN
#include <xen/hvm/hvm_info_table.h>
#include "hw/xen/xen_pt.h"
@@ -173,8 +174,8 @@ static void pc_init1(MachineState *machine,
if (pcmc->smbios_defaults) {
MachineClass *mc = MACHINE_GET_CLASS(machine);
/* These values are guest ABI, do not change */
- smbios_set_defaults("QEMU", "Standard PC (i440FX + PIIX, 1996)",
- mc->name, pcmc->smbios_legacy_mode,
+ smbios_set_defaults("Red Hat", "KVM",
+ mc->desc, pcmc->smbios_legacy_mode,
pcmc->smbios_uuid_encoded,
SMBIOS_ENTRY_POINT_21);
}
@@ -307,6 +308,7 @@ else {
* hw_compat_*, pc_compat_*, or * pc_*_machine_options().
*/
+#if 0 /* Disabled for Red Hat Enterprise Linux */
static void pc_compat_2_3_fn(MachineState *machine)
{
PCMachineState *pcms = PC_MACHINE(machine);
@@ -1026,3 +1028,207 @@ static void xenfv_machine_options(MachineClass *m)
DEFINE_PC_MACHINE(xenfv, "xenfv", pc_xen_hvm_init,
xenfv_machine_options);
#endif
+#endif /* Disabled for Red Hat Enterprise Linux */
+
+/* Red Hat Enterprise Linux machine types */
+
+/* Options for the latest rhel7 machine type */
+static void pc_machine_rhel7_options(MachineClass *m)
+{
+ PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
+ m->family = "pc_piix_Y";
+ m->default_machine_opts = "firmware=bios-256k.bin";
+ pcmc->default_nic_model = "e1000";
+ m->default_display = "std";
+ m->no_parallel = 1;
+ machine_class_allow_dynamic_sysbus_dev(m, TYPE_RAMFB_DEVICE);
+ compat_props_add(m->compat_props, pc_rhel_compat, pc_rhel_compat_len);
+ m->alias = "pc";
+ m->is_default = 1;
+}
+
+static void pc_init_rhel760(MachineState *machine)
+{
+ pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, \
+ TYPE_I440FX_PCI_DEVICE);
+}
+
+static void pc_machine_rhel760_options(MachineClass *m)
+{
+ PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
+ pc_machine_rhel7_options(m);
+ m->desc = "RHEL 7.6.0 PC (i440FX + PIIX, 1996)";
+ m->async_pf_vmexit_disable = true;
+ m->smbus_no_migration_support = true;
+ pcmc->pvh_enabled = false;
+ pcmc->default_cpu_version = CPU_VERSION_LEGACY;
+ compat_props_add(m->compat_props, hw_compat_rhel_8_1, hw_compat_rhel_8_1_len);
+ compat_props_add(m->compat_props, pc_rhel_8_1_compat, pc_rhel_8_1_compat_len);
+ compat_props_add(m->compat_props, hw_compat_rhel_8_0, hw_compat_rhel_8_0_len);
+ compat_props_add(m->compat_props, pc_rhel_8_0_compat, pc_rhel_8_0_compat_len);
+ compat_props_add(m->compat_props, hw_compat_rhel_7_6, hw_compat_rhel_7_6_len);
+ compat_props_add(m->compat_props, pc_rhel_7_6_compat, pc_rhel_7_6_compat_len);
+}
+
+DEFINE_PC_MACHINE(rhel760, "pc-i440fx-rhel7.6.0", pc_init_rhel760,
+ pc_machine_rhel760_options);
+
+static void pc_init_rhel750(MachineState *machine)
+{
+ pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, \
+ TYPE_I440FX_PCI_DEVICE);
+}
+
+static void pc_machine_rhel750_options(MachineClass *m)
+{
+ pc_machine_rhel760_options(m);
+ m->alias = NULL;
+ m->is_default = 0;
+ m->desc = "RHEL 7.5.0 PC (i440FX + PIIX, 1996)";
+ m->auto_enable_numa_with_memhp = false;
+ compat_props_add(m->compat_props, hw_compat_rhel_7_5, hw_compat_rhel_7_5_len);
+ compat_props_add(m->compat_props, pc_rhel_7_5_compat, pc_rhel_7_5_compat_len);
+}
+
+DEFINE_PC_MACHINE(rhel750, "pc-i440fx-rhel7.5.0", pc_init_rhel750,
+ pc_machine_rhel750_options);
+
+static void pc_init_rhel740(MachineState *machine)
+{
+ pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, \
+ TYPE_I440FX_PCI_DEVICE);
+}
+
+static void pc_machine_rhel740_options(MachineClass *m)
+{
+ PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
+ pc_machine_rhel750_options(m);
+ m->desc = "RHEL 7.4.0 PC (i440FX + PIIX, 1996)";
+ m->numa_auto_assign_ram = numa_legacy_auto_assign_ram;
+ pcmc->pc_rom_ro = false;
+ compat_props_add(m->compat_props, hw_compat_rhel_7_4, hw_compat_rhel_7_4_len);
+ compat_props_add(m->compat_props, pc_rhel_7_4_compat, pc_rhel_7_4_compat_len);
+}
+
+DEFINE_PC_MACHINE(rhel740, "pc-i440fx-rhel7.4.0", pc_init_rhel740,
+ pc_machine_rhel740_options);
+
+static void pc_init_rhel730(MachineState *machine)
+{
+ pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, \
+ TYPE_I440FX_PCI_DEVICE);
+}
+
+static void pc_machine_rhel730_options(MachineClass *m)
+{
+ PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
+ pc_machine_rhel740_options(m);
+ m->desc = "RHEL 7.3.0 PC (i440FX + PIIX, 1996)";
+ pcmc->linuxboot_dma_enabled = false;
+ compat_props_add(m->compat_props, hw_compat_rhel_7_3, hw_compat_rhel_7_3_len);
+ compat_props_add(m->compat_props, pc_rhel_7_3_compat, pc_rhel_7_3_compat_len);
+}
+
+DEFINE_PC_MACHINE(rhel730, "pc-i440fx-rhel7.3.0", pc_init_rhel730,
+ pc_machine_rhel730_options);
+
+
+static void pc_init_rhel720(MachineState *machine)
+{
+ pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, \
+ TYPE_I440FX_PCI_DEVICE);
+}
+
+static void pc_machine_rhel720_options(MachineClass *m)
+{
+ PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
+ X86MachineClass *x86mc = X86_MACHINE_CLASS(m);
+ pc_machine_rhel730_options(m);
+ m->desc = "RHEL 7.2.0 PC (i440FX + PIIX, 1996)";
+ /* From pc_i440fx_2_5_machine_options */
+ x86mc->save_tsc_khz = false;
+ m->legacy_fw_cfg_order = 1;
+ /* Note: broken_reserved_end was already in 7.2 */
+ /* From pc_i440fx_2_6_machine_options */
+ pcmc->legacy_cpu_hotplug = true;
+ compat_props_add(m->compat_props, hw_compat_rhel_7_2, hw_compat_rhel_7_2_len);
+ compat_props_add(m->compat_props, pc_rhel_7_2_compat, pc_rhel_7_2_compat_len);
+}
+
+DEFINE_PC_MACHINE(rhel720, "pc-i440fx-rhel7.2.0", pc_init_rhel720,
+ pc_machine_rhel720_options);
+
+static void pc_compat_rhel710(MachineState *machine)
+{
+ PCMachineState *pcms = PC_MACHINE(machine);
+ PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
+
+ /* From pc_compat_2_2 */
+ pcmc->rsdp_in_ram = false;
+ machine->suppress_vmdesc = true;
+
+ /* From pc_compat_2_1 */
+ pcmc->smbios_uuid_encoded = false;
+ x86_cpu_change_kvm_default("svm", NULL);
+ pcmc->enforce_aligned_dimm = false;
+
+ /* Disable all the extra subsections that were added in 2.2 */
+ migrate_pre_2_2 = true;
+
+ /* From pc_i440fx_2_4_machine_options */
+ pcmc->broken_reserved_end = true;
+}
+
+static void pc_init_rhel710(MachineState *machine)
+{
+ pc_compat_rhel710(machine);
+ pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, \
+ TYPE_I440FX_PCI_DEVICE);
+}
+
+static void pc_machine_rhel710_options(MachineClass *m)
+{
+ pc_machine_rhel720_options(m);
+ m->family = "pc_piix_Y";
+ m->desc = "RHEL 7.1.0 PC (i440FX + PIIX, 1996)";
+ m->default_display = "cirrus";
+ compat_props_add(m->compat_props, hw_compat_rhel_7_1, hw_compat_rhel_7_1_len);
+ compat_props_add(m->compat_props, pc_rhel_7_1_compat, pc_rhel_7_1_compat_len);
+}
+
+DEFINE_PC_MACHINE(rhel710, "pc-i440fx-rhel7.1.0", pc_init_rhel710,
+ pc_machine_rhel710_options);
+
+static void pc_compat_rhel700(MachineState *machine)
+{
+ PCMachineState *pcms = PC_MACHINE(machine);
+ PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
+
+ pc_compat_rhel710(machine);
+
+ /* Upstream enables it for everyone, we're a little more selective */
+ x86_cpu_change_kvm_default("x2apic", NULL);
+ x86_cpu_change_kvm_default("svm", NULL);
+ pcmc->legacy_acpi_table_size = 6418; /* see pc_compat_2_0() */
+ pcmc->smbios_legacy_mode = true;
+ pcmc->has_reserved_memory = false;
+ migrate_cve_2014_5263_xhci_fields = true;
+}
+
+static void pc_init_rhel700(MachineState *machine)
+{
+ pc_compat_rhel700(machine);
+ pc_init1(machine, TYPE_I440FX_PCI_HOST_BRIDGE, \
+ TYPE_I440FX_PCI_DEVICE);
+}
+
+static void pc_machine_rhel700_options(MachineClass *m)
+{
+ pc_machine_rhel710_options(m);
+ m->family = "pc_piix_Y";
+ m->desc = "RHEL 7.0.0 PC (i440FX + PIIX, 1996)";
+ compat_props_add(m->compat_props, pc_rhel_7_0_compat, pc_rhel_7_0_compat_len);
+}
+
+DEFINE_PC_MACHINE(rhel700, "pc-i440fx-rhel7.0.0", pc_init_rhel700,
+ pc_machine_rhel700_options);
diff --git a/hw/i386/pc_q35.c b/hw/i386/pc_q35.c
index 385e5cffb1..7531d8ed76 100644
--- a/hw/i386/pc_q35.c
+++ b/hw/i386/pc_q35.c
@@ -197,8 +197,8 @@ static void pc_q35_init(MachineState *machine)
if (pcmc->smbios_defaults) {
/* These values are guest ABI, do not change */
- smbios_set_defaults("QEMU", "Standard PC (Q35 + ICH9, 2009)",
- mc->name, pcmc->smbios_legacy_mode,
+ smbios_set_defaults("Red Hat", "KVM",
+ mc->desc, pcmc->smbios_legacy_mode,
pcmc->smbios_uuid_encoded,
SMBIOS_ENTRY_POINT_21);
}
@@ -330,6 +330,7 @@ static void pc_q35_init(MachineState *machine)
DEFINE_PC_MACHINE(suffix, name, pc_init_##suffix, optionfn)
+#if 0 /* Disabled for Red Hat Enterprise Linux */
static void pc_q35_machine_options(MachineClass *m)
{
PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
@@ -533,3 +534,154 @@ static void pc_q35_2_4_machine_options(MachineClass *m)
DEFINE_Q35_MACHINE(v2_4, "pc-q35-2.4", NULL,
pc_q35_2_4_machine_options);
+#endif /* Disabled for Red Hat Enterprise Linux */
+
+/* Red Hat Enterprise Linux machine types */
+
+/* Options for the latest rhel q35 machine type */
+static void pc_q35_machine_rhel_options(MachineClass *m)
+{
+ PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
+ pcmc->default_nic_model = "e1000e";
+ m->family = "pc_q35_Z";
+ m->units_per_default_bus = 1;
+ m->default_machine_opts = "firmware=bios-256k.bin";
+ m->default_display = "std";
+ m->no_floppy = 1;
+ m->no_parallel = 1;
+ pcmc->default_cpu_version = 1;
+ machine_class_allow_dynamic_sysbus_dev(m, TYPE_AMD_IOMMU_DEVICE);
+ machine_class_allow_dynamic_sysbus_dev(m, TYPE_INTEL_IOMMU_DEVICE);
+ machine_class_allow_dynamic_sysbus_dev(m, TYPE_RAMFB_DEVICE);
+ m->alias = "q35";
+ m->max_cpus = 384;
+ compat_props_add(m->compat_props, pc_rhel_compat, pc_rhel_compat_len);
+}
+
+static void pc_q35_init_rhel820(MachineState *machine)
+{
+ pc_q35_init(machine);
+}
+
+static void pc_q35_machine_rhel820_options(MachineClass *m)
+{
+ pc_q35_machine_rhel_options(m);
+ m->desc = "RHEL-8.2.0 PC (Q35 + ICH9, 2009)";
+}
+
+DEFINE_PC_MACHINE(q35_rhel820, "pc-q35-rhel8.2.0", pc_q35_init_rhel820,
+ pc_q35_machine_rhel820_options);
+
+static void pc_q35_init_rhel810(MachineState *machine)
+{
+ pc_q35_init(machine);
+}
+
+static void pc_q35_machine_rhel810_options(MachineClass *m)
+{
+ pc_q35_machine_rhel820_options(m);
+ m->desc = "RHEL-8.1.0 PC (Q35 + ICH9, 2009)";
+ m->alias = NULL;
+ compat_props_add(m->compat_props, hw_compat_rhel_8_1, hw_compat_rhel_8_1_len);
+ compat_props_add(m->compat_props, pc_rhel_8_1_compat, pc_rhel_8_1_compat_len);
+}
+
+DEFINE_PC_MACHINE(q35_rhel810, "pc-q35-rhel8.1.0", pc_q35_init_rhel810,
+ pc_q35_machine_rhel810_options);
+
+static void pc_q35_init_rhel800(MachineState *machine)
+{
+ pc_q35_init(machine);
+}
+
+static void pc_q35_machine_rhel800_options(MachineClass *m)
+{
+ PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
+ pc_q35_machine_rhel810_options(m);
+ m->desc = "RHEL-8.0.0 PC (Q35 + ICH9, 2009)";
+ m->smbus_no_migration_support = true;
+ m->alias = NULL;
+ pcmc->pvh_enabled = false;
+ pcmc->default_cpu_version = CPU_VERSION_LEGACY;
+ compat_props_add(m->compat_props, hw_compat_rhel_8_0, hw_compat_rhel_8_0_len);
+ compat_props_add(m->compat_props, pc_rhel_8_0_compat, pc_rhel_8_0_compat_len);
+}
+
+DEFINE_PC_MACHINE(q35_rhel800, "pc-q35-rhel8.0.0", pc_q35_init_rhel800,
+ pc_q35_machine_rhel800_options);
+
+static void pc_q35_init_rhel760(MachineState *machine)
+{
+ pc_q35_init(machine);
+}
+
+static void pc_q35_machine_rhel760_options(MachineClass *m)
+{
+ pc_q35_machine_rhel800_options(m);
+ m->alias = NULL;
+ m->desc = "RHEL-7.6.0 PC (Q35 + ICH9, 2009)";
+ m->async_pf_vmexit_disable = true;
+ compat_props_add(m->compat_props, hw_compat_rhel_7_6, hw_compat_rhel_7_6_len);
+ compat_props_add(m->compat_props, pc_rhel_7_6_compat, pc_rhel_7_6_compat_len);
+}
+
+DEFINE_PC_MACHINE(q35_rhel760, "pc-q35-rhel7.6.0", pc_q35_init_rhel760,
+ pc_q35_machine_rhel760_options);
+
+static void pc_q35_init_rhel750(MachineState *machine)
+{
+ pc_q35_init(machine);
+}
+
+static void pc_q35_machine_rhel750_options(MachineClass *m)
+{
+ PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
+ pc_q35_machine_rhel760_options(m);
+ m->alias = NULL;
+ m->desc = "RHEL-7.5.0 PC (Q35 + ICH9, 2009)";
+ m->auto_enable_numa_with_memhp = false;
+ pcmc->default_nic_model = "e1000";
+ compat_props_add(m->compat_props, hw_compat_rhel_7_5, hw_compat_rhel_7_5_len);
+ compat_props_add(m->compat_props, pc_rhel_7_5_compat, pc_rhel_7_5_compat_len);
+}
+
+DEFINE_PC_MACHINE(q35_rhel750, "pc-q35-rhel7.5.0", pc_q35_init_rhel750,
+ pc_q35_machine_rhel750_options);
+
+static void pc_q35_init_rhel740(MachineState *machine)
+{
+ pc_q35_init(machine);
+}
+
+static void pc_q35_machine_rhel740_options(MachineClass *m)
+{
+ PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
+ pc_q35_machine_rhel750_options(m);
+ m->desc = "RHEL-7.4.0 PC (Q35 + ICH9, 2009)";
+ m->numa_auto_assign_ram = numa_legacy_auto_assign_ram;
+ pcmc->pc_rom_ro = false;
+ compat_props_add(m->compat_props, hw_compat_rhel_7_4, hw_compat_rhel_7_4_len);
+ compat_props_add(m->compat_props, pc_rhel_7_4_compat, pc_rhel_7_4_compat_len);
+}
+
+DEFINE_PC_MACHINE(q35_rhel740, "pc-q35-rhel7.4.0", pc_q35_init_rhel740,
+ pc_q35_machine_rhel740_options);
+
+static void pc_q35_init_rhel730(MachineState *machine)
+{
+ pc_q35_init(machine);
+}
+
+static void pc_q35_machine_rhel730_options(MachineClass *m)
+{
+ PCMachineClass *pcmc = PC_MACHINE_CLASS(m);
+ pc_q35_machine_rhel740_options(m);
+ m->desc = "RHEL-7.3.0 PC (Q35 + ICH9, 2009)";
+ m->max_cpus = 255;
+ pcmc->linuxboot_dma_enabled = false;
+ compat_props_add(m->compat_props, hw_compat_rhel_7_3, hw_compat_rhel_7_3_len);
+ compat_props_add(m->compat_props, pc_rhel_7_3_compat, pc_rhel_7_3_compat_len);
+}
+
+DEFINE_PC_MACHINE(q35_rhel730, "pc-q35-rhel7.3.0", pc_q35_init_rhel730,
+ pc_q35_machine_rhel730_options);
diff --git a/include/hw/boards.h b/include/hw/boards.h
index 6f85a0e032..2920bdef5b 100644
--- a/include/hw/boards.h
+++ b/include/hw/boards.h
@@ -222,6 +222,8 @@ struct MachineClass {
const char **valid_cpu_types;
strList *allowed_dynamic_sysbus_devices;
bool auto_enable_numa_with_memhp;
+ /* RHEL only */
+ bool async_pf_vmexit_disable;
void (*numa_auto_assign_ram)(MachineClass *mc, NodeInfo *nodes,
int nb_nodes, ram_addr_t size);
bool ignore_boot_device_suffixes;
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 1f86eba3f9..2e362c8faa 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -124,6 +124,9 @@ typedef struct PCMachineClass {
/* use PVH to load kernels that support this feature */
bool pvh_enabled;
+
+ /* RH only, see bz 1489800 */
+ bool pc_rom_ro;
} PCMachineClass;
#define TYPE_PC_MACHINE "generic-pc-machine"
@@ -300,6 +303,36 @@ extern const size_t pc_compat_1_5_len;
extern GlobalProperty pc_compat_1_4[];
extern const size_t pc_compat_1_4_len;
+extern GlobalProperty pc_rhel_compat[];
+extern const size_t pc_rhel_compat_len;
+
+extern GlobalProperty pc_rhel_8_1_compat[];
+extern const size_t pc_rhel_8_1_compat_len;
+
+extern GlobalProperty pc_rhel_8_0_compat[];
+extern const size_t pc_rhel_8_0_compat_len;
+
+extern GlobalProperty pc_rhel_7_6_compat[];
+extern const size_t pc_rhel_7_6_compat_len;
+
+extern GlobalProperty pc_rhel_7_5_compat[];
+extern const size_t pc_rhel_7_5_compat_len;
+
+extern GlobalProperty pc_rhel_7_4_compat[];
+extern const size_t pc_rhel_7_4_compat_len;
+
+extern GlobalProperty pc_rhel_7_3_compat[];
+extern const size_t pc_rhel_7_3_compat_len;
+
+extern GlobalProperty pc_rhel_7_2_compat[];
+extern const size_t pc_rhel_7_2_compat_len;
+
+extern GlobalProperty pc_rhel_7_1_compat[];
+extern const size_t pc_rhel_7_1_compat_len;
+
+extern GlobalProperty pc_rhel_7_0_compat[];
+extern const size_t pc_rhel_7_0_compat_len;
+
/* Helper for setting model-id for CPU models that changed model-id
* depending on QEMU versions up to QEMU 2.4.
*/
diff --git a/target/i386/cpu.c b/target/i386/cpu.c
index 1b7880ae3a..790db778ab 100644
--- a/target/i386/cpu.c
+++ b/target/i386/cpu.c
@@ -1829,11 +1829,17 @@ static CPUCaches epyc_cache_info = {
static X86CPUDefinition builtin_x86_defs[] = {
{
+ /* qemu64 is the default CPU model for all *-rhel7.* machine-types.
+ * The default on RHEL-6 was cpu64-rhel6.
+ * libvirt assumes that qemu64 is the default for _all_ machine-types,
+ * so we should try to keep qemu64 and cpu64-rhel6 as similar as
+ * possible.
+ */
.name = "qemu64",
.level = 0xd,
.vendor = CPUID_VENDOR_AMD,
.family = 6,
- .model = 6,
+ .model = 13,
.stepping = 3,
.features[FEAT_1_EDX] = CPUID_SSE2 | CPUID_SSE | CPUID_FXSR |
CPUID_MMX | CPUID_CLFLUSH | CPUID_PSE36 | CPUID_PAT | CPUID_CMOV |
@@ -3932,6 +3938,7 @@ static PropValue kvm_default_props[] = {
{ "acpi", "off" },
{ "monitor", "off" },
{ "svm", "off" },
+ { "kvm-pv-unhalt", "on" },
{ NULL, NULL },
};
diff --git a/target/i386/kvm.c b/target/i386/kvm.c
index 1d10046a6c..86d9a1f364 100644
--- a/target/i386/kvm.c
+++ b/target/i386/kvm.c
@@ -3079,6 +3079,7 @@ static int kvm_get_msrs(X86CPU *cpu)
struct kvm_msr_entry *msrs = cpu->kvm_msr_buf->entries;
int ret, i;
uint64_t mtrr_top_bits;
+ MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine());
kvm_msr_buf_reset(cpu);
@@ -3388,6 +3389,9 @@ static int kvm_get_msrs(X86CPU *cpu)
break;
case MSR_KVM_ASYNC_PF_EN:
env->async_pf_en_msr = msrs[i].data;
+ if (mc->async_pf_vmexit_disable) {
+ env->async_pf_en_msr &= ~(1ULL << 2);
+ }
break;
case MSR_KVM_PV_EOI_EN:
env->pv_eoi_en_msr = msrs[i].data;
--
2.21.0

307
SOURCES/0012-Enable-make-check.patch Normal file
View File

@ -0,0 +1,307 @@
From 154215041df085271a780a2989f4f481226e3e34 Mon Sep 17 00:00:00 2001
From: Miroslav Rezanina <mrezanin@redhat.com>
Date: Fri, 19 Oct 2018 13:48:41 +0200
Subject: Enable make check
Fixing tests after device disabling and machine types changes and enabling
make check run during build.
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Rebase changes (4.0.0):
- Remove testing for pseries-2.7 in endianess test
- Disable device-plug-test on s390x as it use disabled device
- Do not run cpu-plug-tests on 7.3 and older machine types
Rebase changes (4.1.0-rc0):
- removed iotests 068
Rebase changes (4.1.0-rc1):
- remove all 205 tests (unstable)
Rebase changes (4.2.0-rc0):
- partially disable hd-geo-test (requires lsi53c895a)
Merged patches (4.0.0):
- f7ffd13 Remove 7 qcow2 and luks iotests that are taking > 25 sec to run during the fast train build proce
Merged patches (4.1.0-rc0):
- 41288ff redhat: Remove raw iotest 205
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
redhat/qemu-kvm.spec.template | 2 +-
tests/Makefile.include | 10 +++++-----
tests/boot-serial-test.c | 6 +++++-
tests/cpu-plug-test.c | 4 ++--
tests/e1000-test.c | 2 ++
tests/hd-geo-test.c | 4 ++++
tests/prom-env-test.c | 4 ++++
tests/qemu-iotests/051 | 12 ++++++------
tests/qemu-iotests/group | 4 ++--
tests/test-x86-cpuid-compat.c | 2 ++
tests/usb-hcd-xhci-test.c | 4 ++++
11 files changed, 37 insertions(+), 17 deletions(-)
diff --git a/tests/Makefile.include b/tests/Makefile.include
index b483790cf3..53bdbdfee0 100644
--- a/tests/Makefile.include
+++ b/tests/Makefile.include
@@ -172,7 +172,7 @@ check-qtest-i386-y += tests/ide-test$(EXESUF)
check-qtest-i386-y += tests/ahci-test$(EXESUF)
check-qtest-i386-y += tests/hd-geo-test$(EXESUF)
check-qtest-i386-y += tests/boot-order-test$(EXESUF)
-check-qtest-i386-y += tests/bios-tables-test$(EXESUF)
+#check-qtest-i386-y += tests/bios-tables-test$(EXESUF)
check-qtest-i386-$(CONFIG_SGA) += tests/boot-serial-test$(EXESUF)
check-qtest-i386-$(CONFIG_SLIRP) += tests/pxe-test$(EXESUF)
check-qtest-i386-y += tests/rtc-test$(EXESUF)
@@ -230,7 +230,7 @@ check-qtest-mips64el-$(CONFIG_VGA) += tests/display-vga-test$(EXESUF)
check-qtest-moxie-y += tests/boot-serial-test$(EXESUF)
check-qtest-ppc-$(CONFIG_ISA_TESTDEV) = tests/endianness-test$(EXESUF)
-check-qtest-ppc-y += tests/boot-order-test$(EXESUF)
+#check-qtest-ppc-y += tests/boot-order-test$(EXESUF)
check-qtest-ppc-y += tests/prom-env-test$(EXESUF)
check-qtest-ppc-y += tests/drive_del-test$(EXESUF)
check-qtest-ppc-y += tests/boot-serial-test$(EXESUF)
@@ -244,8 +244,8 @@ check-qtest-ppc64-$(CONFIG_PSERIES) += tests/rtas-test$(EXESUF)
check-qtest-ppc64-$(CONFIG_SLIRP) += tests/pxe-test$(EXESUF)
check-qtest-ppc64-$(CONFIG_USB_UHCI) += tests/usb-hcd-uhci-test$(EXESUF)
check-qtest-ppc64-$(CONFIG_USB_XHCI_NEC) += tests/usb-hcd-xhci-test$(EXESUF)
-check-qtest-ppc64-$(CONFIG_SLIRP) += tests/test-netfilter$(EXESUF)
-check-qtest-ppc64-$(CONFIG_POSIX) += tests/test-filter-mirror$(EXESUF)
+#check-qtest-ppc64-$(CONFIG_SLIRP) += tests/test-netfilter$(EXESUF)
+#check-qtest-ppc64-$(CONFIG_POSIX) += tests/test-filter-mirror$(EXESUF)
check-qtest-ppc64-$(CONFIG_RTL8139_PCI) += tests/test-filter-redirector$(EXESUF)
check-qtest-ppc64-$(CONFIG_VGA) += tests/display-vga-test$(EXESUF)
check-qtest-ppc64-y += tests/numa-test$(EXESUF)
@@ -291,7 +291,7 @@ check-qtest-s390x-$(CONFIG_SLIRP) += tests/test-netfilter$(EXESUF)
check-qtest-s390x-$(CONFIG_POSIX) += tests/test-filter-mirror$(EXESUF)
check-qtest-s390x-$(CONFIG_POSIX) += tests/test-filter-redirector$(EXESUF)
check-qtest-s390x-y += tests/drive_del-test$(EXESUF)
-check-qtest-s390x-y += tests/device-plug-test$(EXESUF)
+#check-qtest-s390x-y += tests/device-plug-test$(EXESUF)
check-qtest-s390x-y += tests/virtio-ccw-test$(EXESUF)
check-qtest-s390x-y += tests/cpu-plug-test$(EXESUF)
check-qtest-s390x-y += tests/migration-test$(EXESUF)
diff --git a/tests/boot-serial-test.c b/tests/boot-serial-test.c
index d3a54a0ba5..33ce72b89c 100644
--- a/tests/boot-serial-test.c
+++ b/tests/boot-serial-test.c
@@ -108,19 +108,23 @@ static testdef_t tests[] = {
{ "ppc", "g3beige", "", "PowerPC,750" },
{ "ppc", "mac99", "", "PowerPC,G4" },
{ "ppc", "sam460ex", "-m 256", "DRAM: 256 MiB" },
+#if 0 /* Disabled for Red Hat Enterprise Linux */
{ "ppc64", "ppce500", "", "U-Boot" },
{ "ppc64", "40p", "-m 192", "Memory: 192M" },
{ "ppc64", "mac99", "", "PowerPC,970FX" },
+#endif
{ "ppc64", "pseries",
"-machine cap-cfpc=broken,cap-sbbc=broken,cap-ibs=broken",
"Open Firmware" },
+#if 0 /* Disabled for Red Hat Enterprise Linux */
{ "ppc64", "powernv8", "", "OPAL" },
{ "ppc64", "powernv9", "", "OPAL" },
{ "ppc64", "sam460ex", "-device e1000", "8086 100e" },
+#endif
{ "i386", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
{ "i386", "pc", "-device sga", "SGABIOS" },
{ "i386", "q35", "-device sga", "SGABIOS" },
- { "x86_64", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
+ { "x86_64", "pc", "-cpu qemu32 -device sga", "SGABIOS" },
{ "x86_64", "q35", "-device sga", "SGABIOS" },
{ "sparc", "LX", "", "TMS390S10" },
{ "sparc", "SS-4", "", "MB86904" },
diff --git a/tests/cpu-plug-test.c b/tests/cpu-plug-test.c
index 30e514bbfb..a04beae1c6 100644
--- a/tests/cpu-plug-test.c
+++ b/tests/cpu-plug-test.c
@@ -185,8 +185,8 @@ static void add_pseries_test_case(const char *mname)
char *path;
PlugTestData *data;
- if (!g_str_has_prefix(mname, "pseries-") ||
- (g_str_has_prefix(mname, "pseries-2.") && atoi(&mname[10]) < 7)) {
+ if (!g_str_has_prefix(mname, "pseries-rhel") ||
+ (g_str_has_prefix(mname, "pseries-rhel7.") && atoi(&mname[14]) < 4)) {
return;
}
data = g_new(PlugTestData, 1);
diff --git a/tests/e1000-test.c b/tests/e1000-test.c
index c387984ef6..c89112d6f8 100644
--- a/tests/e1000-test.c
+++ b/tests/e1000-test.c
@@ -22,9 +22,11 @@ struct QE1000 {
static const char *models[] = {
"e1000",
+#if 0 /* Disabled for Red Hat Enterprise Linux */
"e1000-82540em",
"e1000-82544gc",
"e1000-82545em",
+#endif
};
static void *e1000_get_driver(void *obj, const char *interface)
diff --git a/tests/hd-geo-test.c b/tests/hd-geo-test.c
index 7e86c5416c..cc068bad87 100644
--- a/tests/hd-geo-test.c
+++ b/tests/hd-geo-test.c
@@ -732,6 +732,7 @@ static void test_override_ide(void)
test_override(args, expected);
}
+#if 0 /* Require lsi53c895a - not supported on RHEL */
static void test_override_scsi(void)
{
TestArgs *args = create_args();
@@ -776,6 +777,7 @@ static void test_override_scsi_2_controllers(void)
add_scsi_disk(args, 3, 1, 0, 1, 2, 0, 1, 0);
test_override(args, expected);
}
+#endif
static void test_override_virtio_blk(void)
{
@@ -951,9 +953,11 @@ int main(int argc, char **argv)
qtest_add_func("hd-geo/ide/device/user/chst", test_ide_device_user_chst);
if (have_qemu_img()) {
qtest_add_func("hd-geo/override/ide", test_override_ide);
+#if 0 /* Require lsi53c895a - not supported on RHEL */
qtest_add_func("hd-geo/override/scsi", test_override_scsi);
qtest_add_func("hd-geo/override/scsi_2_controllers",
test_override_scsi_2_controllers);
+#endif
qtest_add_func("hd-geo/override/virtio_blk", test_override_virtio_blk);
qtest_add_func("hd-geo/override/zero_chs", test_override_zero_chs);
qtest_add_func("hd-geo/override/scsi_hot_unplug",
diff --git a/tests/prom-env-test.c b/tests/prom-env-test.c
index 61bc1d1e7b..028d45c7d7 100644
--- a/tests/prom-env-test.c
+++ b/tests/prom-env-test.c
@@ -88,10 +88,14 @@ int main(int argc, char *argv[])
if (!strcmp(arch, "ppc")) {
add_tests(ppc_machines);
} else if (!strcmp(arch, "ppc64")) {
+#if 0 /* Disabled for Red Hat Enterprise Linux */
add_tests(ppc_machines);
if (g_test_slow()) {
+#endif
qtest_add_data_func("prom-env/pseries", "pseries", test_machine);
+#if 0 /* Disabled for Red Hat Enterprise Linux */
}
+#endif
} else if (!strcmp(arch, "sparc")) {
add_tests(sparc_machines);
} else if (!strcmp(arch, "sparc64")) {
diff --git a/tests/qemu-iotests/051 b/tests/qemu-iotests/051
index 53bcdbc911..b387e0c233 100755
--- a/tests/qemu-iotests/051
+++ b/tests/qemu-iotests/051
@@ -181,11 +181,11 @@ run_qemu -drive if=virtio
case "$QEMU_DEFAULT_MACHINE" in
pc)
run_qemu -drive if=none,id=disk -device ide-cd,drive=disk
- run_qemu -drive if=none,id=disk -device lsi53c895a -device scsi-cd,drive=disk
+# run_qemu -drive if=none,id=disk -device lsi53c895a -device scsi-cd,drive=disk
run_qemu -drive if=none,id=disk -device ide-drive,drive=disk
run_qemu -drive if=none,id=disk -device ide-hd,drive=disk
- run_qemu -drive if=none,id=disk -device lsi53c895a -device scsi-disk,drive=disk
- run_qemu -drive if=none,id=disk -device lsi53c895a -device scsi-hd,drive=disk
+# run_qemu -drive if=none,id=disk -device lsi53c895a -device scsi-disk,drive=disk
+# run_qemu -drive if=none,id=disk -device lsi53c895a -device scsi-hd,drive=disk
;;
*)
;;
@@ -234,11 +234,11 @@ run_qemu -drive file="$TEST_IMG",if=virtio,readonly=on
case "$QEMU_DEFAULT_MACHINE" in
pc)
run_qemu -drive file="$TEST_IMG",if=none,id=disk,readonly=on -device ide-cd,drive=disk
- run_qemu -drive file="$TEST_IMG",if=none,id=disk,readonly=on -device lsi53c895a -device scsi-cd,drive=disk
+# run_qemu -drive file="$TEST_IMG",if=none,id=disk,readonly=on -device lsi53c895a -device scsi-cd,drive=disk
run_qemu -drive file="$TEST_IMG",if=none,id=disk,readonly=on -device ide-drive,drive=disk
run_qemu -drive file="$TEST_IMG",if=none,id=disk,readonly=on -device ide-hd,drive=disk
- run_qemu -drive file="$TEST_IMG",if=none,id=disk,readonly=on -device lsi53c895a -device scsi-disk,drive=disk
- run_qemu -drive file="$TEST_IMG",if=none,id=disk,readonly=on -device lsi53c895a -device scsi-hd,drive=disk
+# run_qemu -drive file="$TEST_IMG",if=none,id=disk,readonly=on -device lsi53c895a -device scsi-disk,drive=disk
+# run_qemu -drive file="$TEST_IMG",if=none,id=disk,readonly=on -device lsi53c895a -device scsi-hd,drive=disk
;;
*)
;;
diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
index 6b10a6a762..06cc734b26 100644
--- a/tests/qemu-iotests/group
+++ b/tests/qemu-iotests/group
@@ -92,7 +92,7 @@
068 rw quick
069 rw auto quick
070 rw quick
-071 rw auto quick
+# 071 rw auto quick -- requires whitelisted blkverify
072 rw auto quick
073 rw auto quick
074 rw auto quick
@@ -120,7 +120,7 @@
096 rw quick
097 rw auto backing
098 rw auto backing quick
-099 rw auto quick
+# 099 rw auto quick -- requires whitelisted blkverify
# 100 was removed, do not reuse
101 rw quick
102 rw quick
diff --git a/tests/test-x86-cpuid-compat.c b/tests/test-x86-cpuid-compat.c
index 772287bdb4..e7c075ed98 100644
--- a/tests/test-x86-cpuid-compat.c
+++ b/tests/test-x86-cpuid-compat.c
@@ -300,6 +300,7 @@ int main(int argc, char **argv)
"-cpu 486,xlevel2=0xC0000002,+xstore",
"xlevel2", 0xC0000002);
+#if 0 /* Disabled in Red Hat Enterprise Linux */
/* Check compatibility of old machine-types that didn't
* auto-increase level/xlevel/xlevel2: */
@@ -350,6 +351,7 @@ int main(int argc, char **argv)
add_cpuid_test("x86/cpuid/xlevel-compat/pc-i440fx-2.4/npt-on",
"-machine pc-i440fx-2.4 -cpu SandyBridge,+npt",
"xlevel", 0x80000008);
+#endif
/* Test feature parsing */
add_feature_test("x86/cpuid/features/plus",
diff --git a/tests/usb-hcd-xhci-test.c b/tests/usb-hcd-xhci-test.c
index 10ef9d2a91..3855873050 100644
--- a/tests/usb-hcd-xhci-test.c
+++ b/tests/usb-hcd-xhci-test.c
@@ -21,6 +21,7 @@ static void test_xhci_hotplug(void)
usb_test_hotplug(global_qtest, "xhci", "1", NULL);
}
+#if 0 /* Disabled for Red Hat Enterprise Linux */
static void test_usb_uas_hotplug(void)
{
QTestState *qts = global_qtest;
@@ -36,6 +37,7 @@ static void test_usb_uas_hotplug(void)
qtest_qmp_device_del(qts, "scsihd");
qtest_qmp_device_del(qts, "uas");
}
+#endif
static void test_usb_ccid_hotplug(void)
{
@@ -56,7 +58,9 @@ int main(int argc, char **argv)
qtest_add_func("/xhci/pci/init", test_xhci_init);
qtest_add_func("/xhci/pci/hotplug", test_xhci_hotplug);
+#if 0 /* Disabled for Red Hat Enterprise Linux */
qtest_add_func("/xhci/pci/hotplug/usb-uas", test_usb_uas_hotplug);
+#endif
qtest_add_func("/xhci/pci/hotplug/usb-ccid", test_usb_ccid_hotplug);
qtest_start("-device nec-usb-xhci,id=xhci"
--
2.21.0

114
SOURCES/0013-vfio-cap-number-of-devices-that-can-be-assigned.patch Normal file
View File

@ -0,0 +1,114 @@
From de433da59448eaad4ac1b902d07d57b57f922aff Mon Sep 17 00:00:00 2001
From: Bandan Das <bsd@redhat.com>
Date: Tue, 3 Dec 2013 20:05:13 +0100
Subject: vfio: cap number of devices that can be assigned
RH-Author: Bandan Das <bsd@redhat.com>
Message-id: <1386101113-31560-3-git-send-email-bsd@redhat.com>
Patchwork-id: 55984
O-Subject: [PATCH RHEL7 qemu-kvm v2 2/2] vfio: cap number of devices that can be assigned
Bugzilla: 678368
RH-Acked-by: Alex Williamson <alex.williamson@redhat.com>
RH-Acked-by: Marcelo Tosatti <mtosatti@redhat.com>
RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>
Go through all groups to get count of total number of devices
active to enforce limit
Reasoning from Alex for the limit(32) - Assuming 3 slots per
device, with 125 slots (number of memory slots for RHEL 7),
we can support almost 40 devices and still have few slots left
for other uses. Stepping down a bit, the number 32 arbitrarily
matches the number of slots on a PCI bus and is also a nice power
of two.
Signed-off-by: Bandan Das <bsd@redhat.com>
Rebase notes (2.8.0):
- removed return value for vfio_realize (commit 1a22aca)
Merged patches (2.9.0):
- 17eb774 vfio: Use error_setg when reporting max assigned device overshoot
Merged patches (4.1.0-rc3):
- 2b89558 vfio: increase the cap on number of assigned devices to 64
(cherry picked from commit 9fa3c9fc6dfcde76d80db1aa601b2d577f72ceec)
(cherry picked from commit 3cb35556dc7d994f203d732fe952f95fcdb03c0a)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/vfio/pci.c | 29 ++++++++++++++++++++++++++++-
hw/vfio/pci.h | 1 +
2 files changed, 29 insertions(+), 1 deletion(-)
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index c8534d3035..309535f306 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -47,6 +47,9 @@
#define TYPE_VFIO_PCI_NOHOTPLUG "vfio-pci-nohotplug"
+/* RHEL only: Set once for the first assigned dev */
+static uint16_t device_limit;
+
static void vfio_disable_interrupts(VFIOPCIDevice *vdev);
static void vfio_mmap_set_enabled(VFIOPCIDevice *vdev, bool enabled);
@@ -2722,9 +2725,30 @@ static void vfio_realize(PCIDevice *pdev, Error **errp)
ssize_t len;
struct stat st;
int groupid;
- int i, ret;
+ int ret, i = 0;
bool is_mdev;
+ if (device_limit && device_limit != vdev->assigned_device_limit) {
+ error_setg(errp, "Assigned device limit has been redefined. "
+ "Old:%d, New:%d",
+ device_limit, vdev->assigned_device_limit);
+ return;
+ } else {
+ device_limit = vdev->assigned_device_limit;
+ }
+
+ QLIST_FOREACH(group, &vfio_group_list, next) {
+ QLIST_FOREACH(vbasedev_iter, &group->device_list, next) {
+ i++;
+ }
+ }
+
+ if (i >= vdev->assigned_device_limit) {
+ error_setg(errp, "Maximum supported vfio devices (%d) "
+ "already attached", vdev->assigned_device_limit);
+ return;
+ }
+
if (!vdev->vbasedev.sysfsdev) {
if (!(~vdev->host.domain || ~vdev->host.bus ||
~vdev->host.slot || ~vdev->host.function)) {
@@ -3167,6 +3191,9 @@ static Property vfio_pci_dev_properties[] = {
DEFINE_PROP_BOOL("x-no-kvm-msix", VFIOPCIDevice, no_kvm_msix, false),
DEFINE_PROP_BOOL("x-no-geforce-quirks", VFIOPCIDevice,
no_geforce_quirks, false),
+ /* RHEL only */
+ DEFINE_PROP_UINT16("x-assigned-device-limit", VFIOPCIDevice,
+ assigned_device_limit, 64),
DEFINE_PROP_BOOL("x-no-kvm-ioeventfd", VFIOPCIDevice, no_kvm_ioeventfd,
false),
DEFINE_PROP_BOOL("x-no-vfio-ioeventfd", VFIOPCIDevice, no_vfio_ioeventfd,
diff --git a/hw/vfio/pci.h b/hw/vfio/pci.h
index 35626cd63e..0cd4803aee 100644
--- a/hw/vfio/pci.h
+++ b/hw/vfio/pci.h
@@ -135,6 +135,7 @@ typedef struct VFIOPCIDevice {
EventNotifier err_notifier;
EventNotifier req_notifier;
int (*resetfn)(struct VFIOPCIDevice *);
+ uint16_t assigned_device_limit;
uint32_t vendor_id;
uint32_t device_id;
uint32_t sub_vendor_id;
--
2.21.0

58
SOURCES/0014-Add-support-statement-to-help-output.patch Normal file
View File

@ -0,0 +1,58 @@
From 2754dd8da8975757753fd491985d5e7b36966106 Mon Sep 17 00:00:00 2001
From: Eduardo Habkost <ehabkost@redhat.com>
Date: Wed, 4 Dec 2013 18:53:17 +0100
Subject: Add support statement to -help output
RH-Author: Eduardo Habkost <ehabkost@redhat.com>
Message-id: <1386183197-27761-1-git-send-email-ehabkost@redhat.com>
Patchwork-id: 55994
O-Subject: [qemu-kvm RHEL7 PATCH] Add support statement to -help output
Bugzilla: 972773
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
RH-Acked-by: knoel@redhat.com
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Add support statement to -help output, reporting direct qemu-kvm usage
as unsupported by Red Hat, and advising users to use libvirt instead.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
(cherry picked from commit 2a07700936e39856cc9f149c6a6517f0715536a6)
(cherry picked from commit 5dd2f4706e2fef945771949e59a8fcc1b5452de9)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
vl.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/vl.c b/vl.c
index 668a34577e..9f3e7e7733 100644
--- a/vl.c
+++ b/vl.c
@@ -1822,9 +1822,17 @@ static void version(void)
QEMU_COPYRIGHT "\n");
}
+static void print_rh_warning(void)
+{
+ printf("\nWARNING: Direct use of qemu-kvm from the command line is not supported by Red Hat.\n"
+ "WARNING: Use libvirt as the stable management interface.\n"
+ "WARNING: Some command line options listed here may not be available in future releases.\n\n");
+}
+
static void help(int exitcode)
{
version();
+ print_rh_warning();
printf("usage: %s [options] [disk_image]\n\n"
"'disk_image' is a raw hard disk image for IDE hard disk 0\n\n",
error_get_progname());
@@ -1841,6 +1849,7 @@ static void help(int exitcode)
"\n"
QEMU_HELP_BOTTOM "\n");
+ print_rh_warning();
exit(exitcode);
}
--
2.21.0

152
SOURCES/0015-globally-limit-the-maximum-number-of-CPUs.patch Normal file
View File

@ -0,0 +1,152 @@
From c9c3cf721b0e9e359418f64c2a5121c3f8b5d27a Mon Sep 17 00:00:00 2001
From: Andrew Jones <drjones@redhat.com>
Date: Tue, 21 Jan 2014 10:46:52 +0100
Subject: globally limit the maximum number of CPUs
We now globally limit the number of VCPUs.
Especially, there is no way one can specify more than
max_cpus VCPUs for a VM.
This allows us the restore the ppc max_cpus limitation to the upstream
default and minimize the ppc hack in kvm-all.c.
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Signed-off-by: Danilo Cesar Lemes de Paula <ddepaula@redhat.com>
Rebase notes (2.11.0):
- Removed CONFIG_RHV reference
- Update commit log
Merged patches (2.11.0):
- 92fef14623 redhat: remove manual max_cpus limitations for ppc
- bb722e9eff redhat: globally limit the maximum number of CPUs
- fdeef3c1c7 RHEL: Set vcpus hard limit to 240 for Power
- 0584216921 Match POWER max cpus to x86
Signed-off-by: Andrew Jones <drjones@redhat.com>
(cherry picked from commit a4ceb63bdc5cbac19f5f633ec761b9de0dedb55e)
(cherry picked from commit a1f26d85171b4d554225150053700e93ba6eba10)
redhat: globally limit the maximum number of CPUs
RH-Author: David Hildenbrand <david@redhat.com>
Message-id: <20180109103253.24517-2-david@redhat.com>
Patchwork-id: 78531
O-Subject: [RHEL-7.5 qemu-kvm-ma PATCH v2 1/2] redhat: globally limit the maximum number of CPUs
Bugzilla: 1527449
RH-Acked-by: David Gibson <dgibson@redhat.com>
RH-Acked-by: Thomas Huth <thuth@redhat.com>
RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
Upstream-status: n/a
For RHEL, we support 240, for RHV up to 384 VCPUs. Let's limit this
globally instead of fixing up all machines. This way, we can easily
change (increase) the product specific levels later.
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
redhat: remove manual max_cpus limitations for ppc
RH-Author: David Hildenbrand <david@redhat.com>
Message-id: <20180109103253.24517-3-david@redhat.com>
Patchwork-id: 78532
O-Subject: [RHEL-7.5 qemu-kvm-ma PATCH v2 2/2] redhat: remove manual max_cpus limitations for ppc
Bugzilla: 1527449
RH-Acked-by: David Gibson <dgibson@redhat.com>
RH-Acked-by: Thomas Huth <thuth@redhat.com>
RH-Acked-by: Cornelia Huck <cohuck@redhat.com>
Upstream-status: n/a
RH-Author: Andrew Jones <drjones@redhat.com>
Message-id: <1390301212-15344-1-git-send-email-drjones@redhat.com>
Patchwork-id: 56862
O-Subject: [RHEL7.0 qemu-kvm PATCH v6] use recommended max vcpu count
Bugzilla: 998708
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
RH-Acked-by: Marcelo Tosatti <mtosatti@redhat.com>
The recommended vcpu max limit (KVM_CAP_NR_VCPUS) should be used instead
of the actual max vcpu limit (KVM_CAP_MAX_VCPUS) to give an error.
This commit matches the limit to current KVM_CAP_NR_VCPUS value.
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
accel/kvm/kvm-all.c | 12 ++++++++++++
vl.c | 18 ++++++++++++++++++
2 files changed, 30 insertions(+)
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index ca00daa2f5..dc3ed7f04e 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -1943,6 +1943,18 @@ static int kvm_init(MachineState *ms)
soft_vcpus_limit = kvm_recommended_vcpus(s);
hard_vcpus_limit = kvm_max_vcpus(s);
+#ifdef HOST_PPC64
+ /*
+ * On POWER, the kernel advertises a soft limit based on the
+ * number of CPU threads on the host. We want to allow exceeding
+ * this for testing purposes, so we don't want to set hard limit
+ * to soft limit as on x86.
+ */
+#else
+ /* RHEL doesn't support nr_vcpus > soft_vcpus_limit */
+ hard_vcpus_limit = soft_vcpus_limit;
+#endif
+
while (nc->name) {
if (nc->num > soft_vcpus_limit) {
warn_report("Number of %s cpus requested (%d) exceeds "
diff --git a/vl.c b/vl.c
index 9f3e7e7733..1550aa2aaa 100644
--- a/vl.c
+++ b/vl.c
@@ -134,6 +134,8 @@ int main(int argc, char **argv)
#define MAX_VIRTIO_CONSOLES 1
+#define RHEL_MAX_CPUS 384
+
static const char *data_dir[16];
static int data_dir_idx;
const char *bios_name = NULL;
@@ -1339,6 +1341,20 @@ static MachineClass *find_default_machine(GSList *machines)
return NULL;
}
+/* Maximum number of CPUs limited for Red Hat Enterprise Linux */
+static void limit_max_cpus_in_machines(void)
+{
+ GSList *el, *machines = object_class_get_list(TYPE_MACHINE, false);
+
+ for (el = machines; el; el = el->next) {
+ MachineClass *mc = el->data;
+
+ if (mc->max_cpus > RHEL_MAX_CPUS) {
+ mc->max_cpus = RHEL_MAX_CPUS;
+ }
+ }
+}
+
static int machine_help_func(QemuOpts *opts, MachineState *machine)
{
ObjectProperty *prop;
@@ -3857,6 +3873,8 @@ int main(int argc, char **argv, char **envp)
"mutually exclusive");
exit(EXIT_FAILURE);
}
+ /* Maximum number of CPUs limited for Red Hat Enterprise Linux */
+ limit_max_cpus_in_machines();
configure_rtc(qemu_find_opts_singleton("rtc"));
--
2.21.0

121
SOURCES/0016-Add-support-for-simpletrace.patch Normal file
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@ -0,0 +1,121 @@
From 26128b3ede339e292a3c50a84e3248af46ecd0ec Mon Sep 17 00:00:00 2001
From: Miroslav Rezanina <mrezanin@redhat.com>
Date: Thu, 8 Oct 2015 09:50:17 +0200
Subject: Add support for simpletrace
As simpletrace is upstream, we just need to properly handle it during rpmbuild.
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Rebase notes (3.1.0):
- Fixed python 2 to python3 switch
Rebase notes (2.9.0):
- Added group argument for tracetool.py (upstream)
Rebase notes (2.8.0):
- Changed tracetool.py parameters
Merged patches (2.3.0):
- db959d6 redhat/qemu-kvm.spec.template: Install qemu-kvm-simpletrace.stp
- 5292fc3 trace: add SystemTap init scripts for simpletrace bridge
- eda9e5e simpletrace: install simpletrace.py
- 85c4c8f trace: add systemtap-initscript README file to RPM
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
.gitignore | 2 ++
Makefile | 4 +++
README.systemtap | 43 +++++++++++++++++++++++++
redhat/qemu-kvm.spec.template | 26 ++++++++++++++-
scripts/systemtap/conf.d/qemu_kvm.conf | 4 +++
scripts/systemtap/script.d/qemu_kvm.stp | 1 +
6 files changed, 79 insertions(+), 1 deletion(-)
create mode 100644 README.systemtap
create mode 100644 scripts/systemtap/conf.d/qemu_kvm.conf
create mode 100644 scripts/systemtap/script.d/qemu_kvm.stp
diff --git a/Makefile b/Makefile
index 086727dbb9..4254950f7f 100644
--- a/Makefile
+++ b/Makefile
@@ -939,6 +939,10 @@ endif
$(INSTALL_DATA) $(SRC_PATH)/pc-bios/keymaps/$$x "$(DESTDIR)$(qemu_datadir)/keymaps"; \
done
$(INSTALL_DATA) $(BUILD_DIR)/trace-events-all "$(DESTDIR)$(qemu_datadir)/trace-events-all"
+ $(INSTALL_DIR) "$(DESTDIR)$(qemu_datadir)/systemtap/script.d"
+ $(INSTALL_DATA) $(SRC_PATH)/scripts/systemtap/script.d/qemu_kvm.stp "$(DESTDIR)$(qemu_datadir)/systemtap/script.d/"
+ $(INSTALL_DIR) "$(DESTDIR)$(qemu_datadir)/systemtap/conf.d"
+ $(INSTALL_DATA) $(SRC_PATH)/scripts/systemtap/conf.d/qemu_kvm.conf "$(DESTDIR)$(qemu_datadir)/systemtap/conf.d/"
.PHONY: ctags
ctags:
diff --git a/README.systemtap b/README.systemtap
new file mode 100644
index 0000000000..ad913fc990
--- /dev/null
+++ b/README.systemtap
@@ -0,0 +1,43 @@
+QEMU tracing using systemtap-initscript
+---------------------------------------
+
+You can capture QEMU trace data all the time using systemtap-initscript. This
+uses SystemTap's flight recorder mode to trace all running guests to a
+fixed-size buffer on the host. Old trace entries are overwritten by new
+entries when the buffer size wraps.
+
+1. Install the systemtap-initscript package:
+ # yum install systemtap-initscript
+
+2. Install the systemtap scripts and the conf file:
+ # cp /usr/share/qemu-kvm/systemtap/script.d/qemu_kvm.stp /etc/systemtap/script.d/
+ # cp /usr/share/qemu-kvm/systemtap/conf.d/qemu_kvm.conf /etc/systemtap/conf.d/
+
+The set of trace events to enable is given in qemu_kvm.stp. This SystemTap
+script can be customized to add or remove trace events provided in
+/usr/share/systemtap/tapset/qemu-kvm-simpletrace.stp.
+
+SystemTap customizations can be made to qemu_kvm.conf to control the flight
+recorder buffer size and whether to store traces in memory only or disk too.
+See stap(1) for option documentation.
+
+3. Start the systemtap service.
+　# service systemtap start qemu_kvm
+
+4. Make the service start at boot time.
+　# chkconfig systemtap on
+
+5. Confirm that the service works.
+ # service systemtap status qemu_kvm
+ qemu_kvm is running...
+
+When you want to inspect the trace buffer, perform the following steps:
+
+1. Dump the trace buffer.
+ # staprun -A qemu_kvm >/tmp/trace.log
+
+2. Start the systemtap service because the preceding step stops the service.
+ # service systemtap start qemu_kvm
+
+3. Translate the trace record to readable format.
+ # /usr/share/qemu-kvm/simpletrace.py --no-header /usr/share/qemu-kvm/trace-events /tmp/trace.log
diff --git a/scripts/systemtap/conf.d/qemu_kvm.conf b/scripts/systemtap/conf.d/qemu_kvm.conf
new file mode 100644
index 0000000000..372d8160a4
--- /dev/null
+++ b/scripts/systemtap/conf.d/qemu_kvm.conf
@@ -0,0 +1,4 @@
+# Force load uprobes (see BZ#1118352)
+stap -e 'probe process("/usr/libexec/qemu-kvm").function("main") { printf("") }' -c true
+
+qemu_kvm_OPT="-s4" # per-CPU buffer size, in megabytes
diff --git a/scripts/systemtap/script.d/qemu_kvm.stp b/scripts/systemtap/script.d/qemu_kvm.stp
new file mode 100644
index 0000000000..c04abf9449
--- /dev/null
+++ b/scripts/systemtap/script.d/qemu_kvm.stp
@@ -0,0 +1 @@
+probe qemu.kvm.simpletrace.handle_qmp_command,qemu.kvm.simpletrace.monitor_protocol_*,qemu.kvm.simpletrace.migrate_set_state {}
--
2.21.0

118
SOURCES/0017-Use-qemu-kvm-in-documentation-instead-of-qemu-system.patch Normal file
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@ -0,0 +1,118 @@
From 97ed62562b883c384346bfef3e1c7e379f03ccab Mon Sep 17 00:00:00 2001
From: Miroslav Rezanina <mrezanin@redhat.com>
Date: Fri, 30 Nov 2018 09:11:03 +0100
Subject: Use qemu-kvm in documentation instead of qemu-system-<arch>
Patchwork-id: 62380
O-Subject: [RHEV-7.1 qemu-kvm-rhev PATCHv4] Use qemu-kvm in documentation instead of qemu-system-i386
Bugzilla: 1140620
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
RH-Acked-by: Markus Armbruster <armbru@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
From: Miroslav Rezanina <mrezanin@redhat.com>
We change the name and location of qemu-kvm binaries. Update documentation
to reflect this change. Only architectures available in RHEL are updated.
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
docs/qemu-block-drivers.texi | 2 +-
docs/qemu-cpu-models.texi | 2 +-
qemu-doc.texi | 6 +++---
qemu-options.hx | 16 ++++++++--------
4 files changed, 13 insertions(+), 13 deletions(-)
diff --git a/docs/qemu-block-drivers.texi b/docs/qemu-block-drivers.texi
index 2c7ea49c32..5d0afb3dee 100644
--- a/docs/qemu-block-drivers.texi
+++ b/docs/qemu-block-drivers.texi
@@ -2,7 +2,7 @@
QEMU block driver reference manual
@c man end
-@set qemu_system qemu-system-x86_64
+@set qemu_system qemu-kvm
@c man begin DESCRIPTION
diff --git a/docs/qemu-cpu-models.texi b/docs/qemu-cpu-models.texi
index f88a1def0d..c82cf8fab7 100644
--- a/docs/qemu-cpu-models.texi
+++ b/docs/qemu-cpu-models.texi
@@ -2,7 +2,7 @@
QEMU / KVM CPU model configuration
@c man end
-@set qemu_system_x86 qemu-system-x86_64
+@set qemu_system_x86 qemu-kvm
@c man begin DESCRIPTION
diff --git a/qemu-doc.texi b/qemu-doc.texi
index 3ddf5c0a68..d460f8d2c0 100644
--- a/qemu-doc.texi
+++ b/qemu-doc.texi
@@ -11,8 +11,8 @@
@paragraphindent 0
@c %**end of header
-@set qemu_system qemu-system-x86_64
-@set qemu_system_x86 qemu-system-x86_64
+@set qemu_system qemu-kvm
+@set qemu_system_x86 qemu-kvm
@ifinfo
@direntry
@@ -1827,7 +1827,7 @@ Set the initial VGA graphic mode. The default is 800x600x32.
Set OpenBIOS variables in NVRAM, for example:
@example
-qemu-system-ppc -prom-env 'auto-boot?=false' \
+qemu-kvm -prom-env 'auto-boot?=false' \
-prom-env 'boot-device=hd:2,\yaboot' \
-prom-env 'boot-args=conf=hd:2,\yaboot.conf'
@end example
diff --git a/qemu-options.hx b/qemu-options.hx
index fc17aca631..df1d27b6f2 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -2737,11 +2737,11 @@ be created for multiqueue vhost-user.
Example:
@example
-qemu -m 512 -object memory-backend-file,id=mem,size=512M,mem-path=/hugetlbfs,share=on \
- -numa node,memdev=mem \
- -chardev socket,id=chr0,path=/path/to/socket \
- -netdev type=vhost-user,id=net0,chardev=chr0 \
- -device virtio-net-pci,netdev=net0
+qemu-kvm -m 512 -object memory-backend-file,id=mem,size=512M,mem-path=/hugetlbfs,share=on \
+ -numa node,memdev=mem \
+ -chardev socket,id=chr0,path=/path/to/socket \
+ -netdev type=vhost-user,id=net0,chardev=chr0 \
+ -device virtio-net-pci,netdev=net0
@end example
@item -netdev hubport,id=@var{id},hubid=@var{hubid}[,netdev=@var{nd}]
@@ -3631,14 +3631,14 @@ ETEXI
DEF("realtime", HAS_ARG, QEMU_OPTION_realtime,
"-realtime [mlock=on|off]\n"
- " run qemu with realtime features\n"
+ " run qemu-kvm with realtime features\n"
" mlock=on|off controls mlock support (default: on)\n",
QEMU_ARCH_ALL)
STEXI
@item -realtime mlock=on|off
@findex -realtime
-Run qemu with realtime features.
-mlocking qemu and guest memory can be enabled via @option{mlock=on}
+Run qemu-kvm with realtime features.
+mlocking qemu-kvm and guest memory can be enabled via @option{mlock=on}
(enabled by default).
ETEXI
--
2.21.0

96
SOURCES/0018-usb-xhci-Fix-PCI-capability-order.patch Normal file
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@ -0,0 +1,96 @@
From b13a7d3527c5c91e7a50236de30a2244b8453911 Mon Sep 17 00:00:00 2001
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Date: Fri, 5 May 2017 19:06:14 +0200
Subject: usb-xhci: Fix PCI capability order
RH-Author: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: <20170505190614.15987-2-dgilbert@redhat.com>
Patchwork-id: 75038
O-Subject: [RHEL-7.4 qemu-kvm-rhev PATCH 1/1] usb-xhci: Fix PCI capability order
Bugzilla: 1447874
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>
RH-Acked-by: Gerd Hoffmann <kraxel@redhat.com>
RH-Acked-by: Juan Quintela <quintela@redhat.com>
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Upstream commit 1108b2f8a9 in 2.7.0 changed the order
of the PCI capability chain in the XHCI pci device in the case
where the device has the PCIe endpoint capability (i.e. only
older machine types, pc-i440fx-2.0 upstream, pc-i440fx-rhel7.0.0
apparently for us).
Changing the order breaks migration compatibility; fixing this
upstream would mean breaking the same case going from 2.7.0->current
that currently works 2.7.0->2.9.0 - so upstream it's a choice
of two breakages.
Since we never released 2.7.0/2.8.0 we can fix this downstream.
This reverts the order so that we create the capabilities in the
order:
PCIe
MSI
MSI-X
The symptom is:
qemu-kvm: get_pci_config_device: Bad config data: i=0x71 read: a0 device: 0 cmask: ff wmask: 0 w1cmask:0
qemu-kvm: Failed to load PCIDevice:config
qemu-kvm: Failed to load xhci:parent_obj
qemu-kvm: error while loading state for instance 0x0 of device '0000:00:0d.0/xhci'
qemu-kvm: load of migration failed: Invalid argument
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
--
Rebase notes (2.9.0):
- Change in assert condition (upstream)
(cherry picked from commit aad727a5ecde1ad4935eb8427604d4df5a1f1f35)
(cherry picked from commit 2dd7402227e77d748a7375233ac9e7feab244bda)
Conflicts:
hw/usb/hcd-xhci.c
(cherry picked from commit a42f86dc906cc7d2c16d02bf125ed76847b469cb)
(cherry picked from commit 992ab2e4f6e15d3e51bc716763aa8d6f45c6d29d)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/usb/hcd-xhci.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index 8fed2eedd6..d2b9744030 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -3403,6 +3403,12 @@ static void usb_xhci_realize(struct PCIDevice *dev, Error **errp)
xhci->max_pstreams_mask = 0;
}
+ if (pci_bus_is_express(pci_get_bus(dev)) ||
+ xhci_get_flag(xhci, XHCI_FLAG_FORCE_PCIE_ENDCAP)) {
+ ret = pcie_endpoint_cap_init(dev, 0xa0);
+ assert(ret > 0);
+ }
+
if (xhci->msi != ON_OFF_AUTO_OFF) {
ret = msi_init(dev, 0x70, xhci->numintrs, true, false, &err);
/* Any error other than -ENOTSUP(board's MSI support is broken)
@@ -3451,12 +3457,6 @@ static void usb_xhci_realize(struct PCIDevice *dev, Error **errp)
PCI_BASE_ADDRESS_SPACE_MEMORY|PCI_BASE_ADDRESS_MEM_TYPE_64,
&xhci->mem);
- if (pci_bus_is_express(pci_get_bus(dev)) ||
- xhci_get_flag(xhci, XHCI_FLAG_FORCE_PCIE_ENDCAP)) {
- ret = pcie_endpoint_cap_init(dev, 0xa0);
- assert(ret > 0);
- }
-
if (xhci->msix != ON_OFF_AUTO_OFF) {
/* TODO check for errors, and should fail when msix=on */
msix_init(dev, xhci->numintrs,
--
2.21.0

69
SOURCES/0019-virtio-scsi-Reject-scsi-cd-if-data-plane-enabled-RHE.patch Normal file
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@ -0,0 +1,69 @@
From 3fab8f5e8a9e190c1ed6916ac13c7c4d65e874b7 Mon Sep 17 00:00:00 2001
From: Fam Zheng <famz@redhat.com>
Date: Wed, 14 Jun 2017 15:37:01 +0200
Subject: virtio-scsi: Reject scsi-cd if data plane enabled [RHEL only]
RH-Author: Fam Zheng <famz@redhat.com>
Message-id: <20170614153701.14757-1-famz@redhat.com>
Patchwork-id: 75613
O-Subject: [RHV-7.4 qemu-kvm-rhev PATCH v3] virtio-scsi: Reject scsi-cd if data plane enabled [RHEL only]
Bugzilla: 1378816
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
We need a fix for RHEL 7.4 and 7.3.z, but unfortunately upstream isn't
ready. If it were, the changes will be too invasive. To have an idea:
https://lists.gnu.org/archive/html/qemu-devel/2017-05/msg05400.html
is an incomplete attempt to fix part of the issue, and the remaining
work unfortunately involve even more complex changes.
As a band-aid, this partially reverts the effect of ef8875b
(virtio-scsi: Remove op blocker for dataplane, since v2.7). We cannot
simply revert that commit as a whole because we already shipped it in
qemu-kvm-rhev 7.3, since when, block jobs has been possible. We should
only block what has been broken. Also, faithfully reverting the above
commit means adding back the removed op blocker, but that is not enough,
because it still crashes when inserting media into an initially empty
scsi-cd.
All in all, scsi-cd on virtio-scsi-dataplane has basically been unusable
unless the scsi-cd never enters an empty state, so, disable it
altogether. Otherwise it would be much more difficult to avoid
crashing.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
(cherry picked from commit b0caf00bbc35c7d89e02999bdce86e1f867728e8)
(cherry picked from commit c9c4f117d8b507c2f86035c282d537c0a327364f)
(cherry picked from commit 5d586bb2543337f0ff172c6ce942dba3acbcedff)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/scsi/virtio-scsi.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c
index e8b2b64d09..54108c0056 100644
--- a/hw/scsi/virtio-scsi.c
+++ b/hw/scsi/virtio-scsi.c
@@ -808,6 +808,15 @@ static void virtio_scsi_hotplug(HotplugHandler *hotplug_dev, DeviceState *dev,
SCSIDevice *sd = SCSI_DEVICE(dev);
int ret;
+ /* XXX: Remove this check once block backend is capable of handling
+ * AioContext change upon eject/insert.
+ * s->ctx is NULL if ioeventfd is off, s->ctx is qemu_get_aio_context() if
+ * data plane is not used, both cases are safe for scsi-cd. */
+ if (s->ctx && s->ctx != qemu_get_aio_context() &&
+ object_dynamic_cast(OBJECT(dev), "scsi-cd")) {
+ error_setg(errp, "scsi-cd is not supported by data plane");
+ return;
+ }
if (s->ctx && !s->dataplane_fenced) {
if (blk_op_is_blocked(sd->conf.blk, BLOCK_OP_TYPE_DATAPLANE, errp)) {
return;
--
2.21.0

60
SOURCES/0020-BZ1653590-Require-at-least-64kiB-pages-for-downstrea.patch Normal file
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@ -0,0 +1,60 @@
From 148e9e80a3a430615b552075082fad22d007d851 Mon Sep 17 00:00:00 2001
From: David Gibson <dgibson@redhat.com>
Date: Wed, 6 Feb 2019 03:58:56 +0000
Subject: BZ1653590: Require at least 64kiB pages for downstream guests & hosts
RH-Author: David Gibson <dgibson@redhat.com>
Message-id: <20190206035856.19058-1-dgibson@redhat.com>
Patchwork-id: 84246
O-Subject: [RHELAV-8.0/rhel qemu-kvm PATCH] BZ1653590: Require at least 64kiB pages for downstream guests & hosts
Bugzilla: 1653590
RH-Acked-by: Laurent Vivier <lvivier@redhat.com>
RH-Acked-by: Serhii Popovych <spopovyc@redhat.com>
RH-Acked-by: Thomas Huth <thuth@redhat.com>
Most current POWER guests require 64kiB page support, so that's the default
for the cap-hpt-max-pagesize option in qemu which limits available guest
page sizes. We warn if the value is set smaller than that, but don't
outright fail upstream, because we need to allow for the possibility of
guest (and/or host) kernels configured for 4kiB page sizes.
Downstream, however, we simply don't support 4kiB pagesize configured
kernels in guest or host, so we can have qemu simply error out in this
situation.
Testing: Attempted to start a guest with cap-hpt-max-page-size=4k and verified
it failed immediately with a qemu error
Signed-off-by: David Gibson <dgibson@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/ppc/spapr_caps.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c
index 481dfd2a27..805f38533e 100644
--- a/hw/ppc/spapr_caps.c
+++ b/hw/ppc/spapr_caps.c
@@ -351,12 +351,19 @@ void spapr_check_pagesize(SpaprMachineState *spapr, hwaddr pagesize,
static void cap_hpt_maxpagesize_apply(SpaprMachineState *spapr,
uint8_t val, Error **errp)
{
+#if 0 /* disabled for RHEL */
if (val < 12) {
error_setg(errp, "Require at least 4kiB hpt-max-page-size");
return;
} else if (val < 16) {
warn_report("Many guests require at least 64kiB hpt-max-page-size");
}
+#else /* Only page sizes >=64kiB supported for RHEL */
+ if (val < 16) {
+ error_setg(errp, "Require at least 64kiB hpt-max-page-size");
+ return;
+ }
+#endif
spapr_check_pagesize(spapr, qemu_minrampagesize(), errp);
}
--
2.21.0

61
SOURCES/0021-Using-ip_deq-after-m_free-might-read-pointers-from-a.patch Normal file
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@ -0,0 +1,61 @@
From ab9ebc29bb9bb142e73a160750a451d40bfe9746 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= <philmd@redhat.com>
Date: Mon, 16 Sep 2019 17:07:00 +0100
Subject: Using ip_deq after m_free might read pointers from an allocation
reuse.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: <20190916170700.647-2-philmd@redhat.com>
Patchwork-id: 90470
O-Subject: [RHEL-AV-8.1.0 qemu-kvm PATCH 1/1] Using ip_deq after m_free might read pointers from an allocation reuse.
Bugzilla: 1749737
RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
RH-Acked-by: John Snow <jsnow@redhat.com>
From: Samuel Thibault <samuel.thibault@ens-lyon.org>
This would be difficult to exploit, but that is still related with
CVE-2019-14378 which generates fragmented IP packets that would trigger this
issue and at least produce a DoS.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
(cherry picked from libslirp commit c59279437eda91841b9d26079c70b8a540d41204)
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
slirp/src/ip_input.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/slirp/src/ip_input.c b/slirp/src/ip_input.c
index 8c75d91495..df1c846ade 100644
--- a/slirp/src/ip_input.c
+++ b/slirp/src/ip_input.c
@@ -292,6 +292,7 @@ static struct ip *ip_reass(Slirp *slirp, struct ip *ip, struct ipq *fp)
*/
while (q != (struct ipasfrag *)&fp->frag_link &&
ip->ip_off + ip->ip_len > q->ipf_off) {
+ struct ipasfrag *prev;
i = (ip->ip_off + ip->ip_len) - q->ipf_off;
if (i < q->ipf_len) {
q->ipf_len -= i;
@@ -299,9 +300,11 @@ static struct ip *ip_reass(Slirp *slirp, struct ip *ip, struct ipq *fp)
m_adj(dtom(slirp, q), i);
break;
}
+ prev = q;
q = q->ipf_next;
- m_free(dtom(slirp, q->ipf_prev));
- ip_deq(q->ipf_prev);
+ ip_deq(prev);
+ m_free(dtom(slirp, prev));
+
}
insert:
--
2.21.0

1
SOURCES/81-kvm-rhel.rules Normal file
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@ -0,0 +1 @@
DEVPATH=="*/kvm", ACTION=="change", RUN+="/lib/udev/udev-kvm-check $env{COUNT} $env{EVENT}"

5
SOURCES/85-kvm.preset Normal file
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@ -0,0 +1,5 @@
# Enable kvm-setup by default. This can have odd side effects on
# PowerNV systems that aren't intended as KVM hosts, but at present we
# only support RHEL on PowerNV for the purpose of being a RHEV host.
enable kvm-setup.service

10
SOURCES/95-kvm-memlock.conf Normal file
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@ -0,0 +1,10 @@
# The KVM HV implementation on Power can require a significant amount
# of unswappable memory (about half of which also needs to be host
# physically contiguous) to hold the guest's Hash Page Table (HPT) -
# roughly 1/64th of the guest's RAM size, minimum 16MiB.
#
# These limits allow unprivileged users to start smallish VMs, such as
# those used by libguestfs.
#
* hard memlock 65536
* soft memlock 65536

2
SOURCES/99-qemu-guest-agent.rules Normal file
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@ -0,0 +1,2 @@
SUBSYSTEM=="virtio-ports", ATTR{name}=="org.qemu.guest_agent.0", \
TAG+="systemd" ENV{SYSTEMD_WANTS}="qemu-guest-agent.service"

39
SOURCES/README.tests Normal file
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@ -0,0 +1,39 @@
qemu-kvm-tests README
=====================
The qemu-kvm-tests rpm contains tests that can be used to verify the
functionality of the installed qemu-kvm package
When installed, the files from this rpm will be arranged in the following
directory structure
tests-src/
├── README
├── scripts
│   ├── qemu.py
│   └── qmp
└── tests
├── acceptance
├── Makefile.include
└── qemu-iotests
The tests/ directory within the tests-src/ directory is setup to remain a copy
of a subset of the tests/ directory from the QEMU source tree
The avocado_qemu tests and qemu-iotests, along with files required for the
execution of the avocado_qemu tests (scripts/qemu.py and scripts/qmp/) will be
installed in a new location - /usr/lib64/qemu-kvm/tests-src/
avocado_qemu tests:
The avocado_qemu tests can be executed by running the following avocado command:
avocado run -p qemu_bin=/usr/libexec/qemu-kvm /usr/lib64/qemu-kvm/tests/acceptance/
Avocado needs to be installed separately using either pip or from source as
Avocado is not being packaged for RHEL-8.
qemu-iotests:
symlinks to corresponding binaries need to be created for QEMU_PROG,
QEMU_IO_PROG, QEMU_IMG_PROG, and QEMU_NBD_PROG before the iotests can be
executed.
The primary purpose of this package is to make these tests available to be
executed as gating tests for the virt module in the RHEL-8 OSCI environment.

1
SOURCES/bridge.conf Normal file
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@ -0,0 +1 @@
allow virbr0

13
SOURCES/ksm.service Normal file
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@ -0,0 +1,13 @@
[Unit]
Description=Kernel Samepage Merging
ConditionPathExists=/sys/kernel/mm/ksm
[Service]
Type=oneshot
RemainAfterExit=yes
EnvironmentFile=-/etc/sysconfig/ksm
ExecStart=/usr/libexec/ksmctl start
ExecStop=/usr/libexec/ksmctl stop
[Install]
WantedBy=multi-user.target

4
SOURCES/ksm.sysconfig Normal file
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@ -0,0 +1,4 @@
# The maximum number of unswappable kernel pages
# which may be allocated by ksm (0 for unlimited)
# If unset, defaults to half of total memory
# KSM_MAX_KERNEL_PAGES=

77
SOURCES/ksmctl.c Normal file
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@ -0,0 +1,77 @@
/* Start/stop KSM, for systemd.
* Copyright (C) 2009, 2011 Red Hat, Inc.
* Written by Paolo Bonzini <pbonzini@redhat.com>.
* Based on the original sysvinit script by Dan Kenigsberg <danken@redhat.com>
* This file is distributed under the GNU General Public License, version 2
* or later. */
#include <unistd.h>
#include <stdio.h>
#include <limits.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#define KSM_MAX_KERNEL_PAGES_FILE "/sys/kernel/mm/ksm/max_kernel_pages"
#define KSM_RUN_FILE "/sys/kernel/mm/ksm/run"
char *program_name;
int usage(void)
{
fprintf(stderr, "Usage: %s {start|stop}\n", program_name);
return 1;
}
int write_value(uint64_t value, char *filename)
{
FILE *fp;
if (!(fp = fopen(filename, "w")) ||
fprintf(fp, "%llu\n", (unsigned long long) value) == EOF ||
fflush(fp) == EOF ||
fclose(fp) == EOF)
return 1;
return 0;
}
uint64_t ksm_max_kernel_pages()
{
char *var = getenv("KSM_MAX_KERNEL_PAGES");
char *endptr;
uint64_t value;
if (var && *var) {
value = strtoll(var, &endptr, 0);
if (value < LLONG_MAX && !*endptr)
return value;
}
/* Unless KSM_MAX_KERNEL_PAGES is set, let KSM munch up to half of
* total memory. */
return sysconf(_SC_PHYS_PAGES) / 2;
}
int start(void)
{
if (access(KSM_MAX_KERNEL_PAGES_FILE, R_OK) >= 0)
write_value(ksm_max_kernel_pages(), KSM_MAX_KERNEL_PAGES_FILE);
return write_value(1, KSM_RUN_FILE);
}
int stop(void)
{
return write_value(0, KSM_RUN_FILE);
}
int main(int argc, char **argv)
{
program_name = argv[0];
if (argc < 2) {
return usage();
} else if (!strcmp(argv[1], "start")) {
return start();
} else if (!strcmp(argv[1], "stop")) {
return stop();
} else {
return usage();
}
}

139
SOURCES/ksmtuned Normal file
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@ -0,0 +1,139 @@
#!/bin/bash
#
# Copyright 2009 Red Hat, Inc. and/or its affiliates.
# Released under the GPL
#
# Author: Dan Kenigsberg <danken@redhat.com>
#
# ksmtuned - a simple script that controls whether (and with what vigor) ksm
# should search for duplicated pages.
#
# starts ksm when memory commited to qemu processes exceeds a threshold, and
# make ksm work harder and harder untill memory load falls below that
# threshold.
#
# send SIGUSR1 to this process right after a new qemu process is started, or
# following its death, to retune ksm accordingly
#
# needs testing and ironing. contact danken@redhat.com if something breaks.
if [ -f /etc/ksmtuned.conf ]; then
. /etc/ksmtuned.conf
fi
debug() {
if [ -n "$DEBUG" ]; then
s="`/bin/date`: $*"
[ -n "$LOGFILE" ] && echo "$s" >> "$LOGFILE" || echo "$s"
fi
}
KSM_MONITOR_INTERVAL=${KSM_MONITOR_INTERVAL:-60}
KSM_NPAGES_BOOST=${KSM_NPAGES_BOOST:-300}
KSM_NPAGES_DECAY=${KSM_NPAGES_DECAY:--50}
KSM_NPAGES_MIN=${KSM_NPAGES_MIN:-64}
KSM_NPAGES_MAX=${KSM_NPAGES_MAX:-1250}
# millisecond sleep between ksm scans for 16Gb server. Smaller servers sleep
# more, bigger sleep less.
KSM_SLEEP_MSEC=${KSM_SLEEP_MSEC:-10}
KSM_THRES_COEF=${KSM_THRES_COEF:-20}
KSM_THRES_CONST=${KSM_THRES_CONST:-2048}
total=`awk '/^MemTotal:/ {print $2}' /proc/meminfo`
debug total $total
npages=0
sleep=$[KSM_SLEEP_MSEC * 16 * 1024 * 1024 / total]
[ $sleep -le 10 ] && sleep=10
debug sleep $sleep
thres=$[total * KSM_THRES_COEF / 100]
if [ $KSM_THRES_CONST -gt $thres ]; then
thres=$KSM_THRES_CONST
fi
debug thres $thres
KSMCTL () {
case x$1 in
xstop)
echo 0 > /sys/kernel/mm/ksm/run
;;
xstart)
echo $2 > /sys/kernel/mm/ksm/pages_to_scan
echo $3 > /sys/kernel/mm/ksm/sleep_millisecs
echo 1 > /sys/kernel/mm/ksm/run
;;
esac
}
committed_memory () {
# calculate how much memory is committed to running qemu processes
local pidlist
pidlist=$(pgrep -d ' ' -- '^qemu(-(kvm|system-.+)|:.{1,11})$')
if [ -n "$pidlist" ]; then
ps -p "$pidlist" -o rsz=
fi | awk '{ sum += $1 }; END { print 0+sum }'
}
free_memory () {
awk '/^(MemFree|Buffers|Cached):/ {free += $2}; END {print free}' \
/proc/meminfo
}
increase_npages() {
local delta
delta=${1:-0}
npages=$[npages + delta]
if [ $npages -lt $KSM_NPAGES_MIN ]; then
npages=$KSM_NPAGES_MIN
elif [ $npages -gt $KSM_NPAGES_MAX ]; then
npages=$KSM_NPAGES_MAX
fi
echo $npages
}
adjust () {
local free committed
free=`free_memory`
committed=`committed_memory`
debug committed $committed free $free
if [ $[committed + thres] -lt $total -a $free -gt $thres ]; then
KSMCTL stop
debug "$[committed + thres] < $total and free > $thres, stop ksm"
return 1
fi
debug "$[committed + thres] > $total, start ksm"
if [ $free -lt $thres ]; then
npages=`increase_npages $KSM_NPAGES_BOOST`
debug "$free < $thres, boost"
else
npages=`increase_npages $KSM_NPAGES_DECAY`
debug "$free > $thres, decay"
fi
KSMCTL start $npages $sleep
debug "KSMCTL start $npages $sleep"
return 0
}
function nothing () {
:
}
loop () {
trap nothing SIGUSR1
while true
do
sleep $KSM_MONITOR_INTERVAL &
wait $!
adjust
done
}
PIDFILE=${PIDFILE-/var/run/ksmtune.pid}
if touch "$PIDFILE"; then
loop &
echo $! > "$PIDFILE"
fi

21
SOURCES/ksmtuned.conf Normal file
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@ -0,0 +1,21 @@
# Configuration file for ksmtuned.
# How long ksmtuned should sleep between tuning adjustments
# KSM_MONITOR_INTERVAL=60
# Millisecond sleep between ksm scans for 16Gb server.
# Smaller servers sleep more, bigger sleep less.
# KSM_SLEEP_MSEC=10
# KSM_NPAGES_BOOST=300
# KSM_NPAGES_DECAY=-50
# KSM_NPAGES_MIN=64
# KSM_NPAGES_MAX=1250
# KSM_THRES_COEF=20
# KSM_THRES_CONST=2048
# uncomment the following if you want ksmtuned debug info
# LOGFILE=/var/log/ksmtuned
# DEBUG=1

12
SOURCES/ksmtuned.service Normal file
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@ -0,0 +1,12 @@
[Unit]
Description=Kernel Samepage Merging (KSM) Tuning Daemon
After=ksm.service
Requires=ksm.service
[Service]
ExecStart=/usr/sbin/ksmtuned
ExecReload=/bin/kill -USR1 $MAINPID
Type=forking
[Install]
WantedBy=multi-user.target

41
SOURCES/kvm-ACPI-add-expected-files-for-HMAT-tests-acpihmat.patch Normal file
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@ -0,0 +1,41 @@
From ff8529dcbf86b3a086d64dd630cf6a687603c571 Mon Sep 17 00:00:00 2001
From: "plai@redhat.com" <plai@redhat.com>
Date: Thu, 21 May 2020 23:56:55 +0100
Subject: [PATCH 12/12] ACPI: add expected files for HMAT tests (acpihmat)
RH-Author: plai@redhat.com
Message-id: <20200521235655.27141-12-plai@redhat.com>
Patchwork-id: 96742
O-Subject: [RHEL8.2.1 AV qemu-kvm PATCH 11/11] ACPI: add expected files for HMAT tests (acpihmat)
Bugzilla: 1600217
RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>
RH-Acked-by: Igor Mammedov <imammedo@redhat.com>
RH-Acked-by: Eduardo Habkost <ehabkost@redhat.com>
From: "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 48892c6c8def6624a0ed57e2bd6c2a0a9878b973)
Signed-off-by: Paul Lai <plai@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
tests/bios-tables-test-allowed-diff.h | 8 --------
1 file changed, 8 deletions(-)
diff --git a/tests/bios-tables-test-allowed-diff.h b/tests/bios-tables-test-allowed-diff.h
index 3c9e0c9..dfb8523 100644
--- a/tests/bios-tables-test-allowed-diff.h
+++ b/tests/bios-tables-test-allowed-diff.h
@@ -1,9 +1 @@
/* List of comma-separated changed AML files to ignore */
-"tests/data/acpi/pc/APIC.acpihmat",
-"tests/data/acpi/pc/SRAT.acpihmat",
-"tests/data/acpi/pc/HMAT.acpihmat",
-"tests/data/acpi/pc/DSDT.acpihmat",
-"tests/data/acpi/q35/APIC.acpihmat",
-"tests/data/acpi/q35/SRAT.acpihmat",
-"tests/data/acpi/q35/HMAT.acpihmat",
-"tests/data/acpi/q35/DSDT.acpihmat",
--
1.8.3.1

58
SOURCES/kvm-Don-t-leak-memory-when-reallocation-fails.patch Normal file
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@ -0,0 +1,58 @@
From bcb6107f98d7b1edf687d7afd552a4528b7e673b Mon Sep 17 00:00:00 2001
From: jmaloy <jmaloy@redhat.com>
Date: Tue, 12 May 2020 21:15:13 +0100
Subject: [PATCH 2/7] Don't leak memory when reallocation fails.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: jmaloy <jmaloy@redhat.com>
Message-id: <20200512211514.1398384-2-jmaloy@redhat.com>
Patchwork-id: 96412
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 1/2] Don't leak memory when reallocation fails.
Bugzilla: 1749737
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Thomas Huth <thuth@redhat.com>
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
From: Jindrich Novy <jnovy@redhat.com>
Signed-off-by: Jindrich Novy <jnovy@redhat.com>
[ Marc-André - modified to use a temporary variable ]
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
(cherry picked from libslirp commit d171af3732a0610a25334b06b77fa547bd677918)
Signed-off-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
slirp/src/sbuf.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/slirp/src/sbuf.c b/slirp/src/sbuf.c
index abced48..0569c34 100644
--- a/slirp/src/sbuf.c
+++ b/slirp/src/sbuf.c
@@ -39,13 +39,16 @@ void sbreserve(struct sbuf *sb, int size)
if (sb->sb_data) {
/* Already alloced, realloc if necessary */
if (sb->sb_datalen != size) {
- sb->sb_wptr = sb->sb_rptr = sb->sb_data =
- (char *)realloc(sb->sb_data, size);
+ char *new = realloc(sb->sb_data, size);
sb->sb_cc = 0;
- if (sb->sb_wptr)
+ if (new) {
+ sb->sb_data = sb->sb_wptr = sb->sb_rptr = new;
sb->sb_datalen = size;
- else
+ } else {
+ free(sb->sb_data);
+ sb->sb_data = sb->sb_wptr = sb->sb_rptr = NULL;
sb->sb_datalen = 0;
+ }
}
} else {
sb->sb_wptr = sb->sb_rptr = sb->sb_data = (char *)malloc(size);
--
1.8.3.1

60
SOURCES/kvm-Fix-use-afte-free-in-ip_reass-CVE-2020-1983.patch Normal file
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@ -0,0 +1,60 @@
From a33ea192428d9c9307f1140f3e25631a6ef7657c Mon Sep 17 00:00:00 2001
From: Jon Maloy <jmaloy@redhat.com>
Date: Sat, 20 Jun 2020 15:02:59 -0400
Subject: [PATCH 12/12] Fix use-afte-free in ip_reass() (CVE-2020-1983)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Jon Maloy <jmaloy@redhat.com>
Message-id: <20200620150259.3352467-2-jmaloy@redhat.com>
Patchwork-id: 97678
O-Subject: [RHEL-8.3.0 qemu-kvm PATCH 1/1] Fix use-afte-free in ip_reass() (CVE-2020-1983)
Bugzilla: 1838070
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
From: Marc-André Lureau <marcandre.lureau@redhat.com>
The q pointer is updated when the mbuf data is moved from m_dat to
m_ext.
m_ext buffer may also be realloc()'ed and moved during m_cat():
q should also be updated in this case.
Reported-by: Aviv Sasson <asasson@paloaltonetworks.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
(cherry picked from libslirp commit 9bd6c5913271eabcb7768a58197ed3301fe19f2d)
Signed-off-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
slirp/src/ip_input.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/slirp/src/ip_input.c b/slirp/src/ip_input.c
index df1c846ade..0f5d522ec1 100644
--- a/slirp/src/ip_input.c
+++ b/slirp/src/ip_input.c
@@ -329,7 +329,7 @@ insert:
q = fp->frag_link.next;
m = dtom(slirp, q);
- int was_ext = m->m_flags & M_EXT;
+ int delta = (char *)q - (m->m_flags & M_EXT ? m->m_ext : m->m_dat);
q = (struct ipasfrag *)q->ipf_next;
while (q != (struct ipasfrag *)&fp->frag_link) {
@@ -353,8 +353,7 @@ insert:
* the old buffer (in the mbuf), so we must point ip
* into the new buffer.
*/
- if (!was_ext && m->m_flags & M_EXT) {
- int delta = (char *)q - m->m_dat;
+ if (m->m_flags & M_EXT) {
q = (struct ipasfrag *)(m->m_ext + delta);
}
--
2.27.0

55
SOURCES/kvm-MAINTAINERS-fix-qcow2-bitmap.c-under-Dirty-Bitmaps-h.patch Normal file
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@ -0,0 +1,55 @@
From e3bec8c83459a68ae0c08e2ae0f1dbef24872d59 Mon Sep 17 00:00:00 2001
From: Eric Blake <eblake@redhat.com>
Date: Tue, 2 Jun 2020 02:34:09 +0100
Subject: [PATCH 04/26] MAINTAINERS: fix qcow2-bitmap.c under Dirty Bitmaps
header
RH-Author: Eric Blake <eblake@redhat.com>
Message-id: <20200602023420.2133649-2-eblake@redhat.com>
Patchwork-id: 97068
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 01/12] MAINTAINERS: fix qcow2-bitmap.c under Dirty Bitmaps header
Bugzilla: 1779893 1779904
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Somehow I wrote not full path to the file. Fix that.
Also, while being here, rearrange entries, so that includes go first,
then block, than migration, than util.
Fixes: 052db8e71444d
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 00637c6b0b67694127cc01dd75f3626da23acdaa)
Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
MAINTAINERS | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/MAINTAINERS b/MAINTAINERS
index d1b3e26..3a81ac9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1873,12 +1873,12 @@ M: John Snow <jsnow@redhat.com>
R: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
L: qemu-block@nongnu.org
S: Supported
-F: util/hbitmap.c
-F: block/dirty-bitmap.c
F: include/qemu/hbitmap.h
F: include/block/dirty-bitmap.h
-F: qcow2-bitmap.c
+F: block/dirty-bitmap.c
+F: block/qcow2-bitmap.c
F: migration/block-dirty-bitmap.c
+F: util/hbitmap.c
F: tests/test-hbitmap.c
F: docs/interop/bitmaps.rst
T: git https://github.com/jnsnow/qemu.git bitmaps
--
1.8.3.1

53
SOURCES/kvm-RHEL-hw-i386-disable-nested-PERF_GLOBAL_CTRL-MSR-sup.patch Normal file
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@ -0,0 +1,53 @@
From 481357ea8ae32b6894860c296cf6a2898260195f Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri, 17 Jan 2020 13:18:27 +0100
Subject: [PATCH 4/4] RHEL: hw/i386: disable nested PERF_GLOBAL_CTRL MSR
support
RH-Author: Paolo Bonzini <pbonzini@redhat.com>
Message-id: <20200117131827.20361-1-pbonzini@redhat.com>
Patchwork-id: 93405
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v3] RHEL: hw/i386: disable nested PERF_GLOBAL_CTRL MSR support
Bugzilla: 1559846
RH-Acked-by: Vitaly Kuznetsov <vkuznets@redhat.com>
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
BZ: 1559846
BRANCH: rhel-av-8.2.0
BREW: 25775160
UPSTREAM: RHEL only
Nested PERF_GLOBAL_CTRL support is not present in the 8.2 kernel. Drop the
features via compat properties, they will be moved to 8.2 machine type compat
properties in the 8.3 timeframe.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
No change, for v2 I mistakenly wrote "origin/rhel-av-8.2.0" as the
branch. :(
hw/i386/pc.c | 2 ++
1 file changed, 2 insertions(+)
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
hw/i386/pc.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index 61e70e4..73a0f11 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -351,6 +351,8 @@ const size_t pc_compat_1_4_len = G_N_ELEMENTS(pc_compat_1_4);
GlobalProperty pc_rhel_compat[] = {
{ TYPE_X86_CPU, "host-phys-bits", "on" },
{ TYPE_X86_CPU, "host-phys-bits-limit", "48" },
+ { TYPE_X86_CPU, "vmx-entry-load-perf-global-ctrl", "off" },
+ { TYPE_X86_CPU, "vmx-exit-load-perf-global-ctrl", "off" },
/* bz 1508330 */
{ "vfio-pci", "x-no-geforce-quirks", "on" },
};
--
1.8.3.1

115
SOURCES/kvm-Reallocate-dirty_bmap-when-we-change-a-slot.patch Normal file
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@ -0,0 +1,115 @@
From c477581ccc6962651d4d6c702a6c3e2fcc5e4205 Mon Sep 17 00:00:00 2001
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Date: Thu, 2 Jan 2020 11:56:51 +0000
Subject: [PATCH 2/2] kvm: Reallocate dirty_bmap when we change a slot
RH-Author: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: <20200102115651.140177-1-dgilbert@redhat.com>
Patchwork-id: 93256
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 1/1] kvm: Reallocate dirty_bmap when we change a slot
Bugzilla: 1772774
RH-Acked-by: Peter Xu <peterx@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
bz: https://bugzilla.redhat.com/show_bug.cgi?id=1772774
brew: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=25575691
branch: rhel-av-8.2.0
kvm_set_phys_mem can be called to reallocate a slot by something the
guest does (e.g. writing to PAM and other chipset registers).
This can happen in the middle of a migration, and if we're unlucky
it can now happen between the split 'sync' and 'clear'; the clear
asserts if there's no bmap to clear. Recreate the bmap whenever
we change the slot, keeping the clear path happy.
Typically this is triggered by the guest rebooting during a migrate.
Corresponds to:
https://bugzilla.redhat.com/show_bug.cgi?id=1772774
https://bugzilla.redhat.com/show_bug.cgi?id=1771032
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
(cherry picked from commit 9b3a31c745b61758aaa5466a3a9fc0526d409188)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
accel/kvm/kvm-all.c | 44 +++++++++++++++++++++++++++++---------------
1 file changed, 29 insertions(+), 15 deletions(-)
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index dc3ed7f..5007bda 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -518,6 +518,27 @@ static int kvm_get_dirty_pages_log_range(MemoryRegionSection *section,
#define ALIGN(x, y) (((x)+(y)-1) & ~((y)-1))
+/* Allocate the dirty bitmap for a slot */
+static void kvm_memslot_init_dirty_bitmap(KVMSlot *mem)
+{
+ /*
+ * XXX bad kernel interface alert
+ * For dirty bitmap, kernel allocates array of size aligned to
+ * bits-per-long. But for case when the kernel is 64bits and
+ * the userspace is 32bits, userspace can't align to the same
+ * bits-per-long, since sizeof(long) is different between kernel
+ * and user space. This way, userspace will provide buffer which
+ * may be 4 bytes less than the kernel will use, resulting in
+ * userspace memory corruption (which is not detectable by valgrind
+ * too, in most cases).
+ * So for now, let's align to 64 instead of HOST_LONG_BITS here, in
+ * a hope that sizeof(long) won't become >8 any time soon.
+ */
+ hwaddr bitmap_size = ALIGN(((mem->memory_size) >> TARGET_PAGE_BITS),
+ /*HOST_LONG_BITS*/ 64) / 8;
+ mem->dirty_bmap = g_malloc0(bitmap_size);
+}
+
/**
* kvm_physical_sync_dirty_bitmap - Sync dirty bitmap from kernel space
*
@@ -550,23 +571,9 @@ static int kvm_physical_sync_dirty_bitmap(KVMMemoryListener *kml,
goto out;
}
- /* XXX bad kernel interface alert
- * For dirty bitmap, kernel allocates array of size aligned to
- * bits-per-long. But for case when the kernel is 64bits and
- * the userspace is 32bits, userspace can't align to the same
- * bits-per-long, since sizeof(long) is different between kernel
- * and user space. This way, userspace will provide buffer which
- * may be 4 bytes less than the kernel will use, resulting in
- * userspace memory corruption (which is not detectable by valgrind
- * too, in most cases).
- * So for now, let's align to 64 instead of HOST_LONG_BITS here, in
- * a hope that sizeof(long) won't become >8 any time soon.
- */
if (!mem->dirty_bmap) {
- hwaddr bitmap_size = ALIGN(((mem->memory_size) >> TARGET_PAGE_BITS),
- /*HOST_LONG_BITS*/ 64) / 8;
/* Allocate on the first log_sync, once and for all */
- mem->dirty_bmap = g_malloc0(bitmap_size);
+ kvm_memslot_init_dirty_bitmap(mem);
}
d.dirty_bitmap = mem->dirty_bmap;
@@ -1067,6 +1074,13 @@ static void kvm_set_phys_mem(KVMMemoryListener *kml,
mem->ram = ram;
mem->flags = kvm_mem_flags(mr);
+ if (mem->flags & KVM_MEM_LOG_DIRTY_PAGES) {
+ /*
+ * Reallocate the bmap; it means it doesn't disappear in
+ * middle of a migrate.
+ */
+ kvm_memslot_init_dirty_bitmap(mem);
+ }
err = kvm_set_user_memory_region(kml, mem, true);
if (err) {
fprintf(stderr, "%s: error registering slot: %s\n", __func__,
--
1.8.3.1

118
SOURCES/kvm-Replace-remaining-malloc-free-user-with-glib.patch Normal file
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@ -0,0 +1,118 @@
From c012dc9b501d96a2ff54a8a7a182726043b69aeb Mon Sep 17 00:00:00 2001
From: jmaloy <jmaloy@redhat.com>
Date: Tue, 12 May 2020 21:15:14 +0100
Subject: [PATCH 3/7] Replace remaining malloc/free user with glib
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: jmaloy <jmaloy@redhat.com>
Message-id: <20200512211514.1398384-3-jmaloy@redhat.com>
Patchwork-id: 96413
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 2/2] Replace remaining malloc/free user with glib
Bugzilla: 1749737
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Thomas Huth <thuth@redhat.com>
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
From: Marc-André Lureau <marcandre.lureau@redhat.com>
glib mem functions are already used in various places. Let's not mix
the two, and instead abort on OOM conditions.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
(cherry picked from libslirp commit 3a494648526be4eb96cba739a816a60e933ffd14)
Signed-off-by: Jon Maloy <jmaloy@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
slirp/src/sbuf.c | 21 ++++++---------------
slirp/src/socket.c | 2 +-
slirp/src/tcp_subr.c | 8 ++------
3 files changed, 9 insertions(+), 22 deletions(-)
diff --git a/slirp/src/sbuf.c b/slirp/src/sbuf.c
index 0569c34..eab87f3 100644
--- a/slirp/src/sbuf.c
+++ b/slirp/src/sbuf.c
@@ -9,7 +9,7 @@ static void sbappendsb(struct sbuf *sb, struct mbuf *m);
void sbfree(struct sbuf *sb)
{
- free(sb->sb_data);
+ g_free(sb->sb_data);
}
bool sbdrop(struct sbuf *sb, int num)
@@ -39,24 +39,15 @@ void sbreserve(struct sbuf *sb, int size)
if (sb->sb_data) {
/* Already alloced, realloc if necessary */
if (sb->sb_datalen != size) {
- char *new = realloc(sb->sb_data, size);
+ char *new = g_realloc(sb->sb_data, size);
sb->sb_cc = 0;
- if (new) {
- sb->sb_data = sb->sb_wptr = sb->sb_rptr = new;
- sb->sb_datalen = size;
- } else {
- free(sb->sb_data);
- sb->sb_data = sb->sb_wptr = sb->sb_rptr = NULL;
- sb->sb_datalen = 0;
- }
+ sb->sb_data = sb->sb_wptr = sb->sb_rptr = new;
+ sb->sb_datalen = size;
}
} else {
- sb->sb_wptr = sb->sb_rptr = sb->sb_data = (char *)malloc(size);
+ sb->sb_wptr = sb->sb_rptr = sb->sb_data = g_malloc(size);
sb->sb_cc = 0;
- if (sb->sb_wptr)
- sb->sb_datalen = size;
- else
- sb->sb_datalen = 0;
+ sb->sb_datalen = size;
}
}
diff --git a/slirp/src/socket.c b/slirp/src/socket.c
index 34daffc..ace18bf 100644
--- a/slirp/src/socket.c
+++ b/slirp/src/socket.c
@@ -95,7 +95,7 @@ void sofree(struct socket *so)
remque(so); /* crashes if so is not in a queue */
if (so->so_tcpcb) {
- free(so->so_tcpcb);
+ g_free(so->so_tcpcb);
}
g_free(so);
}
diff --git a/slirp/src/tcp_subr.c b/slirp/src/tcp_subr.c
index 26d4ead..4e5a801 100644
--- a/slirp/src/tcp_subr.c
+++ b/slirp/src/tcp_subr.c
@@ -255,11 +255,7 @@ struct tcpcb *tcp_newtcpcb(struct socket *so)
{
register struct tcpcb *tp;
- tp = (struct tcpcb *)malloc(sizeof(*tp));
- if (tp == NULL)
- return ((struct tcpcb *)0);
-
- memset((char *)tp, 0, sizeof(struct tcpcb));
+ tp = g_new0(struct tcpcb, 1);
tp->seg_next = tp->seg_prev = (struct tcpiphdr *)tp;
tp->t_maxseg = (so->so_ffamily == AF_INET) ? TCP_MSS : TCP6_MSS;
@@ -330,7 +326,7 @@ struct tcpcb *tcp_close(struct tcpcb *tp)
remque(tcpiphdr2qlink(tcpiphdr_prev(t)));
m_free(m);
}
- free(tp);
+ g_free(tp);
so->so_tcpcb = NULL;
/* clobber input socket cache if we're closing the cached connection */
if (so == slirp->tcp_last_so)
--
1.8.3.1

58
SOURCES/kvm-Revert-RHEL-disable-hostmem-memfd.patch Normal file
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@ -0,0 +1,58 @@
From 559d5899473dea180ced39a32bfbfbf2310c6e04 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@redhat.com>
Date: Mon, 25 May 2020 15:33:06 +0100
Subject: [PATCH 4/7] Revert "RHEL: disable hostmem-memfd"
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: <20200525153306.15373-1-marcandre.lureau@redhat.com>
Patchwork-id: 96747
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH] Revert "RHEL: disable hostmem-memfd"
Bugzilla: 1839030
RH-Acked-by: Daniel P. Berrange <berrange@redhat.com>
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1839030
BRANCH: rhel-av-8.2.1
UPSTREAM: RHEL-only
BREW: http://brewweb.devel.redhat.com/brew/taskinfo?taskID=28817132
This reverts commit f7587ddb9a2731bf678a24156b6285dda79a4b2b.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
backends/Makefile.objs | 3 +--
util/memfd.c | 2 +-
2 files changed, 2 insertions(+), 3 deletions(-)
diff --git a/backends/Makefile.objs b/backends/Makefile.objs
index f328d40..f069111 100644
--- a/backends/Makefile.objs
+++ b/backends/Makefile.objs
@@ -16,5 +16,4 @@ endif
common-obj-$(call land,$(CONFIG_VHOST_USER),$(CONFIG_VIRTIO)) += vhost-user.o
-# RHEL: disable memfd
-# common-obj-$(CONFIG_LINUX) += hostmem-memfd.o
+common-obj-$(CONFIG_LINUX) += hostmem-memfd.o
diff --git a/util/memfd.c b/util/memfd.c
index 3303ec9..4a3c07e 100644
--- a/util/memfd.c
+++ b/util/memfd.c
@@ -193,7 +193,7 @@ bool qemu_memfd_alloc_check(void)
*/
bool qemu_memfd_check(unsigned int flags)
{
-#if 0 /* RHEL: memfd support disabled */
+#ifdef CONFIG_LINUX
int mfd = memfd_create("test", flags | MFD_CLOEXEC);
if (mfd >= 0) {
--
1.8.3.1

121
SOURCES/kvm-Revert-mirror-Don-t-let-an-operation-wait-for-itself.patch Normal file
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@ -0,0 +1,121 @@
From 71b5267ed33f9e60bc98acbabcbed62f01a96ff4 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Mon, 30 Mar 2020 11:19:23 +0100
Subject: [PATCH 3/4] Revert "mirror: Don't let an operation wait for itself"
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200330111924.22938-2-kwolf@redhat.com>
Patchwork-id: 94464
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 1/2] Revert "mirror: Don't let an operation wait for itself"
Bugzilla: 1794692
RH-Acked-by: Maxim Levitsky <mlevitsk@redhat.com>
RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
This reverts commit 7e6c4ff792734e196c8ca82564c56b5e7c6288ca.
The fix was incomplete as it only protected against requests waiting for
themselves, but not against requests waiting for each other. We need a
different solution.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200326153628.4869-2-kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 9178f4fe5f083064f5c91f04d98c815ce5a5af1c)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/mirror.c | 21 +++++++++------------
1 file changed, 9 insertions(+), 12 deletions(-)
diff --git a/block/mirror.c b/block/mirror.c
index cacbc70..8959e42 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -283,14 +283,11 @@ static int mirror_cow_align(MirrorBlockJob *s, int64_t *offset,
}
static inline void coroutine_fn
-mirror_wait_for_any_operation(MirrorBlockJob *s, MirrorOp *self, bool active)
+mirror_wait_for_any_operation(MirrorBlockJob *s, bool active)
{
MirrorOp *op;
QTAILQ_FOREACH(op, &s->ops_in_flight, next) {
- if (self == op) {
- continue;
- }
/* Do not wait on pseudo ops, because it may in turn wait on
* some other operation to start, which may in fact be the
* caller of this function. Since there is only one pseudo op
@@ -305,10 +302,10 @@ mirror_wait_for_any_operation(MirrorBlockJob *s, MirrorOp *self, bool active)
}
static inline void coroutine_fn
-mirror_wait_for_free_in_flight_slot(MirrorBlockJob *s, MirrorOp *self)
+mirror_wait_for_free_in_flight_slot(MirrorBlockJob *s)
{
/* Only non-active operations use up in-flight slots */
- mirror_wait_for_any_operation(s, self, false);
+ mirror_wait_for_any_operation(s, false);
}
/* Perform a mirror copy operation.
@@ -351,7 +348,7 @@ static void coroutine_fn mirror_co_read(void *opaque)
while (s->buf_free_count < nb_chunks) {
trace_mirror_yield_in_flight(s, op->offset, s->in_flight);
- mirror_wait_for_free_in_flight_slot(s, op);
+ mirror_wait_for_free_in_flight_slot(s);
}
/* Now make a QEMUIOVector taking enough granularity-sized chunks
@@ -558,7 +555,7 @@ static uint64_t coroutine_fn mirror_iteration(MirrorBlockJob *s)
while (s->in_flight >= MAX_IN_FLIGHT) {
trace_mirror_yield_in_flight(s, offset, s->in_flight);
- mirror_wait_for_free_in_flight_slot(s, pseudo_op);
+ mirror_wait_for_free_in_flight_slot(s);
}
if (s->ret < 0) {
@@ -612,7 +609,7 @@ static void mirror_free_init(MirrorBlockJob *s)
static void coroutine_fn mirror_wait_for_all_io(MirrorBlockJob *s)
{
while (s->in_flight > 0) {
- mirror_wait_for_free_in_flight_slot(s, NULL);
+ mirror_wait_for_free_in_flight_slot(s);
}
}
@@ -797,7 +794,7 @@ static int coroutine_fn mirror_dirty_init(MirrorBlockJob *s)
if (s->in_flight >= MAX_IN_FLIGHT) {
trace_mirror_yield(s, UINT64_MAX, s->buf_free_count,
s->in_flight);
- mirror_wait_for_free_in_flight_slot(s, NULL);
+ mirror_wait_for_free_in_flight_slot(s);
continue;
}
@@ -950,7 +947,7 @@ static int coroutine_fn mirror_run(Job *job, Error **errp)
/* Do not start passive operations while there are active
* writes in progress */
while (s->in_active_write_counter) {
- mirror_wait_for_any_operation(s, NULL, true);
+ mirror_wait_for_any_operation(s, true);
}
if (s->ret < 0) {
@@ -976,7 +973,7 @@ static int coroutine_fn mirror_run(Job *job, Error **errp)
if (s->in_flight >= MAX_IN_FLIGHT || s->buf_free_count == 0 ||
(cnt == 0 && s->in_flight > 0)) {
trace_mirror_yield(s, cnt, s->buf_free_count, s->in_flight);
- mirror_wait_for_free_in_flight_slot(s, NULL);
+ mirror_wait_for_free_in_flight_slot(s);
continue;
} else if (cnt != 0) {
delay_ns = mirror_iteration(s);
--
1.8.3.1

63
SOURCES/kvm-Virtiofsd-fix-memory-leak-on-fuse-queueinfo.patch Normal file
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@ -0,0 +1,63 @@
From ceb6d97674b8bc9a072db1be4167411bc0ee48d7 Mon Sep 17 00:00:00 2001
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Date: Mon, 27 Jan 2020 19:02:02 +0100
Subject: [PATCH 091/116] Virtiofsd: fix memory leak on fuse queueinfo
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: <20200127190227.40942-88-dgilbert@redhat.com>
Patchwork-id: 93542
O-Subject: [RHEL-AV-8.2 qemu-kvm PATCH 087/112] Virtiofsd: fix memory leak on fuse queueinfo
Bugzilla: 1694164
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
From: Liu Bo <bo.liu@linux.alibaba.com>
For fuse's queueinfo, both queueinfo array and queueinfos are allocated in
fv_queue_set_started() but not cleaned up when the daemon process quits.
This fixes the leak in proper places.
Signed-off-by: Liu Bo <bo.liu@linux.alibaba.com>
Signed-off-by: Eric Ren <renzhen@linux.alibaba.com>
Reviewed-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
(cherry picked from commit 740b0b700a6338a1cf60c26229651ac5f6724944)
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
tools/virtiofsd/fuse_virtio.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/tools/virtiofsd/fuse_virtio.c b/tools/virtiofsd/fuse_virtio.c
index b7948de..fb8d6d1 100644
--- a/tools/virtiofsd/fuse_virtio.c
+++ b/tools/virtiofsd/fuse_virtio.c
@@ -625,6 +625,8 @@ static void fv_queue_cleanup_thread(struct fv_VuDev *vud, int qidx)
}
close(ourqi->kill_fd);
ourqi->kick_fd = -1;
+ free(vud->qi[qidx]);
+ vud->qi[qidx] = NULL;
}
/* Callback from libvhost-user on start or stop of a queue */
@@ -884,6 +886,12 @@ int virtio_session_mount(struct fuse_session *se)
void virtio_session_close(struct fuse_session *se)
{
close(se->vu_socketfd);
+
+ if (!se->virtio_dev) {
+ return;
+ }
+
+ free(se->virtio_dev->qi);
free(se->virtio_dev);
se->virtio_dev = NULL;
}
--
1.8.3.1

62
SOURCES/kvm-apic-Use-32bit-APIC-ID-for-migration-instance-ID.patch Normal file
View File

@ -0,0 +1,62 @@
From 0d5a09173eb75b7e56122c2aefb2646a2be58400 Mon Sep 17 00:00:00 2001
From: Peter Xu <peterx@redhat.com>
Date: Fri, 31 Jan 2020 17:12:57 +0000
Subject: [PATCH 15/15] apic: Use 32bit APIC ID for migration instance ID
RH-Author: Peter Xu <peterx@redhat.com>
Message-id: <20200131171257.1066593-4-peterx@redhat.com>
Patchwork-id: 93628
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 3/3] apic: Use 32bit APIC ID for migration instance ID
Bugzilla: 1529231
RH-Acked-by: Eduardo Habkost <ehabkost@redhat.com>
RH-Acked-by: Juan Quintela <quintela@redhat.com>
RH-Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Migration is silently broken now with x2apic config like this:
-smp 200,maxcpus=288,sockets=2,cores=72,threads=2 \
-device intel-iommu,intremap=on,eim=on
After migration, the guest kernel could hang at anything, due to
x2apic bit not migrated correctly in IA32_APIC_BASE on some vcpus, so
any operations related to x2apic could be broken then (e.g., RDMSR on
x2apic MSRs could fail because KVM would think that the vcpu hasn't
enabled x2apic at all).
The issue is that the x2apic bit was never applied correctly for vcpus
whose ID > 255 when migrate completes, and that's because when we
migrate APIC we use the APICCommonState.id as instance ID of the
migration stream, while that's too short for x2apic.
Let's use the newly introduced initial_apic_id for that.
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
(cherry picked from commit 0ab994867c365db21e15f9503922c79234d8e40e)
Signed-off-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/intc/apic_common.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/hw/intc/apic_common.c b/hw/intc/apic_common.c
index 54b8731..b5dbeb6 100644
--- a/hw/intc/apic_common.c
+++ b/hw/intc/apic_common.c
@@ -268,7 +268,10 @@ static void apic_common_realize(DeviceState *dev, Error **errp)
APICCommonState *s = APIC_COMMON(dev);
APICCommonClass *info;
static DeviceState *vapic;
- uint32_t instance_id = s->id;
+ uint32_t instance_id = s->initial_apic_id;
+
+ /* Normally initial APIC ID should be no more than hundreds */
+ assert(instance_id != VMSTATE_INSTANCE_ID_ANY);
info = APIC_COMMON_GET_CLASS(s);
info->realize(dev, errp);
--
1.8.3.1

51
SOURCES/kvm-backup-Improve-error-for-bdrv_getlength-failure.patch Normal file
View File

@ -0,0 +1,51 @@
From fba183faf8ce819262a1a47f8531ea68051cdce7 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Wed, 3 Jun 2020 16:03:19 +0100
Subject: [PATCH 20/26] backup: Improve error for bdrv_getlength() failure
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200603160325.67506-6-kwolf@redhat.com>
Patchwork-id: 97103
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH v2 05/11] backup: Improve error for bdrv_getlength() failure
Bugzilla: 1778593
RH-Acked-by: Eric Blake <eblake@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
bdrv_get_device_name() will be an empty string with modern management
tools that don't use -drive. Use bdrv_get_device_or_node_name() instead
so that the node name is used if the BlockBackend is anonymous.
While at it, start with upper case to make the message consistent with
the rest of the function.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-Id: <20200430142755.315494-3-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 58226634c4b02af7b10862f7fbd3610a344bfb7f)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/backup.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/block/backup.c b/block/backup.c
index ec50946..7c6ddd2 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -408,8 +408,8 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
len = bdrv_getlength(bs);
if (len < 0) {
- error_setg_errno(errp, -len, "unable to get length for '%s'",
- bdrv_get_device_name(bs));
+ error_setg_errno(errp, -len, "Unable to get length for '%s'",
+ bdrv_get_device_or_node_name(bs));
goto error;
}
--
1.8.3.1

124
SOURCES/kvm-backup-Make-sure-that-source-and-target-size-match.patch Normal file
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@ -0,0 +1,124 @@
From e56abd782be8bb41bb07c0317d008f95ec9a8ee5 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Wed, 3 Jun 2020 16:03:20 +0100
Subject: [PATCH 21/26] backup: Make sure that source and target size match
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200603160325.67506-7-kwolf@redhat.com>
Patchwork-id: 97107
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH v2 06/11] backup: Make sure that source and target size match
Bugzilla: 1778593
RH-Acked-by: Eric Blake <eblake@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
Since the introduction of a backup filter node in commit 00e30f05d, the
backup block job crashes when the target image is smaller than the
source image because it will try to write after the end of the target
node without having BLK_PERM_RESIZE. (Previously, the BlockBackend layer
would have caught this and errored out gracefully.)
We can fix this and even do better than the old behaviour: Check that
source and target have the same image size at the start of the block job
and unshare BLK_PERM_RESIZE. (This permission was already unshared
before the same commit 00e30f05d, but the BlockBackend that was used to
make the restriction was removed without a replacement.) This will
immediately error out when starting the job instead of only when writing
to a block that doesn't exist in the target.
Longer target than source would technically work because we would never
write to blocks that don't exist, but semantically these are invalid,
too, because a backup is supposed to create a copy, not just an image
that starts with a copy.
Fixes: 00e30f05de1d19586345ec373970ef4c192c6270
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1778593
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200430142755.315494-4-kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 958a04bd32af18d9a207bcc78046e56a202aebc2)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/backup-top.c | 14 +++++++++-----
block/backup.c | 14 +++++++++++++-
2 files changed, 22 insertions(+), 6 deletions(-)
diff --git a/block/backup-top.c b/block/backup-top.c
index b8d863f..6756091 100644
--- a/block/backup-top.c
+++ b/block/backup-top.c
@@ -143,8 +143,10 @@ static void backup_top_child_perm(BlockDriverState *bs, BdrvChild *c,
*
* Share write to target (child_file), to not interfere
* with guest writes to its disk which may be in target backing chain.
+ * Can't resize during a backup block job because we check the size
+ * only upfront.
*/
- *nshared = BLK_PERM_ALL;
+ *nshared = BLK_PERM_ALL & ~BLK_PERM_RESIZE;
*nperm = BLK_PERM_WRITE;
} else {
/* Source child */
@@ -154,7 +156,7 @@ static void backup_top_child_perm(BlockDriverState *bs, BdrvChild *c,
if (perm & BLK_PERM_WRITE) {
*nperm = *nperm | BLK_PERM_CONSISTENT_READ;
}
- *nshared &= ~BLK_PERM_WRITE;
+ *nshared &= ~(BLK_PERM_WRITE | BLK_PERM_RESIZE);
}
}
@@ -187,10 +189,12 @@ BlockDriverState *bdrv_backup_top_append(BlockDriverState *source,
{
Error *local_err = NULL;
BDRVBackupTopState *state;
- BlockDriverState *top = bdrv_new_open_driver(&bdrv_backup_top_filter,
- filter_node_name,
- BDRV_O_RDWR, errp);
+ BlockDriverState *top;
+
+ assert(source->total_sectors == target->total_sectors);
+ top = bdrv_new_open_driver(&bdrv_backup_top_filter, filter_node_name,
+ BDRV_O_RDWR, errp);
if (!top) {
return NULL;
}
diff --git a/block/backup.c b/block/backup.c
index 7c6ddd2..821c9fb 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -348,7 +348,7 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
BlockCompletionFunc *cb, void *opaque,
JobTxn *txn, Error **errp)
{
- int64_t len;
+ int64_t len, target_len;
BackupBlockJob *job = NULL;
int64_t cluster_size;
BdrvRequestFlags write_flags;
@@ -413,6 +413,18 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs,
goto error;
}
+ target_len = bdrv_getlength(target);
+ if (target_len < 0) {
+ error_setg_errno(errp, -target_len, "Unable to get length for '%s'",
+ bdrv_get_device_or_node_name(bs));
+ goto error;
+ }
+
+ if (target_len != len) {
+ error_setg(errp, "Source and target image have different sizes");
+ goto error;
+ }
+
cluster_size = backup_calculate_cluster_size(target, errp);
if (cluster_size < 0) {
goto error;
--
1.8.3.1

57
SOURCES/kvm-backup-don-t-acquire-aio_context-in-backup_clean.patch Normal file
View File

@ -0,0 +1,57 @@
From 619b3aac9790a7ca7c01846144395a318a9ab250 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Wed, 8 Apr 2020 17:29:14 +0100
Subject: [PATCH 3/6] backup: don't acquire aio_context in backup_clean
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200408172917.18712-4-kwolf@redhat.com>
Patchwork-id: 94596
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 3/6] backup: don't acquire aio_context in backup_clean
Bugzilla: 1817621
RH-Acked-by: Eric Blake <eblake@redhat.com>
RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
From: Stefan Reiter <s.reiter@proxmox.com>
All code-paths leading to backup_clean (via job_clean) have the job's
context already acquired. The job's context is guaranteed to be the same
as the one used by backup_top via backup_job_create.
Since the previous logic effectively acquired the lock twice, this
broke cleanup of backups for disks using IO threads, since the BDRV_POLL_WHILE
in bdrv_backup_top_drop -> bdrv_do_drained_begin would only release the lock
once, thus deadlocking with the IO thread.
This is a partial revert of 0abf2581717a19.
Signed-off-by: Stefan Reiter <s.reiter@proxmox.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200407115651.69472-4-s.reiter@proxmox.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit eca0f3524a4eb57d03a56b0cbcef5527a0981ce4)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/backup.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/block/backup.c b/block/backup.c
index 1383e21..ec50946 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -135,11 +135,7 @@ static void backup_abort(Job *job)
static void backup_clean(Job *job)
{
BackupBlockJob *s = container_of(job, BackupBlockJob, common.job);
- AioContext *aio_context = bdrv_get_aio_context(s->backup_top);
-
- aio_context_acquire(aio_context);
bdrv_backup_top_drop(s->backup_top);
- aio_context_release(aio_context);
}
void backup_do_checkpoint(BlockJob *job, Error **errp)
--
1.8.3.1

56
SOURCES/kvm-backup-top-Begin-drain-earlier.patch Normal file
View File

@ -0,0 +1,56 @@
From bc78ee07bf400cbff0021367e05d308870471710 Mon Sep 17 00:00:00 2001
From: Sergio Lopez Pascual <slp@redhat.com>
Date: Fri, 7 Feb 2020 11:27:45 +0000
Subject: [PATCH 12/18] backup-top: Begin drain earlier
RH-Author: Sergio Lopez Pascual <slp@redhat.com>
Message-id: <20200207112749.25073-6-slp@redhat.com>
Patchwork-id: 93757
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 5/9] backup-top: Begin drain earlier
Bugzilla: 1745606 1746217 1773517 1779036 1782111 1782175 1783965
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
From: Max Reitz <mreitz@redhat.com>
When dropping backup-top, we need to drain the node before freeing the
BlockCopyState. Otherwise, requests may still be in flight and then the
assertion in shres_destroy() will fail.
(This becomes visible in intermittent failure of 056.)
Cc: qemu-stable@nongnu.org
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20191219182638.104621-1-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
(cherry picked from commit 503ca1262bab2c11c533a4816d1ff4297d4f58a6)
Signed-off-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/backup-top.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/block/backup-top.c b/block/backup-top.c
index 7cdb1f8..818d3f2 100644
--- a/block/backup-top.c
+++ b/block/backup-top.c
@@ -257,12 +257,12 @@ void bdrv_backup_top_drop(BlockDriverState *bs)
BDRVBackupTopState *s = bs->opaque;
AioContext *aio_context = bdrv_get_aio_context(bs);
- block_copy_state_free(s->bcs);
-
aio_context_acquire(aio_context);
bdrv_drained_begin(bs);
+ block_copy_state_free(s->bcs);
+
s->active = false;
bdrv_child_refresh_perms(bs, bs->backing, &error_abort);
bdrv_replace_node(bs, backing_bs(bs), &error_abort);
--
1.8.3.1

116
SOURCES/kvm-block-Activate-recursively-even-for-already-active-n.patch Normal file
View File

@ -0,0 +1,116 @@
From 0ef6691ce8964bb2bbd677756c4e594793ca3ad8 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Fri, 7 Feb 2020 11:24:01 +0000
Subject: [PATCH 04/18] block: Activate recursively even for already active
nodes
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200207112404.25198-4-kwolf@redhat.com>
Patchwork-id: 93749
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 3/6] block: Activate recursively even for already active nodes
Bugzilla: 1781637
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
bdrv_invalidate_cache_all() assumes that all nodes in a given subtree
are either active or inactive when it starts. Therefore, as soon as it
arrives at an already active node, it stops.
However, this assumption is wrong. For example, it's possible to take a
snapshot of an inactive node, which results in an active overlay over an
inactive backing file. The active overlay is probably also the root node
of an inactive BlockBackend (blk->disable_perm == true).
In this case, bdrv_invalidate_cache_all() does not need to do anything
to activate the overlay node, but it still needs to recurse into the
children and the parents to make sure that after returning success,
really everything is activated.
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
(cherry picked from commit 7bb4941ace471fc7dd6ded4749b95b9622baa6ed)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block.c | 50 ++++++++++++++++++++++++--------------------------
1 file changed, 24 insertions(+), 26 deletions(-)
diff --git a/block.c b/block.c
index 473eb6e..2e5e8b6 100644
--- a/block.c
+++ b/block.c
@@ -5335,10 +5335,6 @@ static void coroutine_fn bdrv_co_invalidate_cache(BlockDriverState *bs,
return;
}
- if (!(bs->open_flags & BDRV_O_INACTIVE)) {
- return;
- }
-
QLIST_FOREACH(child, &bs->children, next) {
bdrv_co_invalidate_cache(child->bs, &local_err);
if (local_err) {
@@ -5360,34 +5356,36 @@ static void coroutine_fn bdrv_co_invalidate_cache(BlockDriverState *bs,
* just keep the extended permissions for the next time that an activation
* of the image is tried.
*/
- bs->open_flags &= ~BDRV_O_INACTIVE;
- bdrv_get_cumulative_perm(bs, &perm, &shared_perm);
- ret = bdrv_check_perm(bs, NULL, perm, shared_perm, NULL, NULL, &local_err);
- if (ret < 0) {
- bs->open_flags |= BDRV_O_INACTIVE;
- error_propagate(errp, local_err);
- return;
- }
- bdrv_set_perm(bs, perm, shared_perm);
-
- if (bs->drv->bdrv_co_invalidate_cache) {
- bs->drv->bdrv_co_invalidate_cache(bs, &local_err);
- if (local_err) {
+ if (bs->open_flags & BDRV_O_INACTIVE) {
+ bs->open_flags &= ~BDRV_O_INACTIVE;
+ bdrv_get_cumulative_perm(bs, &perm, &shared_perm);
+ ret = bdrv_check_perm(bs, NULL, perm, shared_perm, NULL, NULL, &local_err);
+ if (ret < 0) {
bs->open_flags |= BDRV_O_INACTIVE;
error_propagate(errp, local_err);
return;
}
- }
+ bdrv_set_perm(bs, perm, shared_perm);
- FOR_EACH_DIRTY_BITMAP(bs, bm) {
- bdrv_dirty_bitmap_skip_store(bm, false);
- }
+ if (bs->drv->bdrv_co_invalidate_cache) {
+ bs->drv->bdrv_co_invalidate_cache(bs, &local_err);
+ if (local_err) {
+ bs->open_flags |= BDRV_O_INACTIVE;
+ error_propagate(errp, local_err);
+ return;
+ }
+ }
- ret = refresh_total_sectors(bs, bs->total_sectors);
- if (ret < 0) {
- bs->open_flags |= BDRV_O_INACTIVE;
- error_setg_errno(errp, -ret, "Could not refresh total sector count");
- return;
+ FOR_EACH_DIRTY_BITMAP(bs, bm) {
+ bdrv_dirty_bitmap_skip_store(bm, false);
+ }
+
+ ret = refresh_total_sectors(bs, bs->total_sectors);
+ if (ret < 0) {
+ bs->open_flags |= BDRV_O_INACTIVE;
+ error_setg_errno(errp, -ret, "Could not refresh total sector count");
+ return;
+ }
}
QLIST_FOREACH(parent, &bs->parents, next_parent) {
--
1.8.3.1

283
SOURCES/kvm-block-Add-flags-to-BlockDriver.bdrv_co_truncate.patch Normal file
View File

@ -0,0 +1,283 @@
From 13e2076f5c4adbc9a3f96c8978150aa5e423e14a Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Mon, 8 Jun 2020 15:01:30 +0100
Subject: [PATCH 02/17] block: Add flags to BlockDriver.bdrv_co_truncate()
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200608150140.38218-2-kwolf@redhat.com>
Patchwork-id: 97448
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 01/11] block: Add flags to BlockDriver.bdrv_co_truncate()
Bugzilla: 1780574
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
RH-Acked-by: Eric Blake <eblake@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
This adds a new BdrvRequestFlags parameter to the .bdrv_co_truncate()
driver callbacks, and a supported_truncate_flags field in
BlockDriverState that allows drivers to advertise support for request
flags in the context of truncate.
For now, we always pass 0 and no drivers declare support for any flag.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200424125448.63318-2-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 92b92799dc8662b6f71809100a4aabc1ae408ebb)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/crypto.c | 3 ++-
block/file-posix.c | 2 +-
block/file-win32.c | 2 +-
block/gluster.c | 1 +
block/io.c | 8 +++++++-
block/iscsi.c | 2 +-
block/nfs.c | 3 ++-
block/qcow2.c | 2 +-
block/qed.c | 1 +
block/raw-format.c | 2 +-
block/rbd.c | 1 +
block/sheepdog.c | 4 ++--
block/ssh.c | 2 +-
include/block/block_int.h | 10 +++++++++-
tests/test-block-iothread.c | 3 ++-
15 files changed, 33 insertions(+), 13 deletions(-)
diff --git a/block/crypto.c b/block/crypto.c
index 5e3b15c..6e4b726 100644
--- a/block/crypto.c
+++ b/block/crypto.c
@@ -299,7 +299,8 @@ static int block_crypto_co_create_generic(BlockDriverState *bs,
static int coroutine_fn
block_crypto_co_truncate(BlockDriverState *bs, int64_t offset, bool exact,
- PreallocMode prealloc, Error **errp)
+ PreallocMode prealloc, BdrvRequestFlags flags,
+ Error **errp)
{
BlockCrypto *crypto = bs->opaque;
uint64_t payload_offset =
diff --git a/block/file-posix.c b/block/file-posix.c
index 1609598..7551e8d 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -2021,7 +2021,7 @@ raw_regular_truncate(BlockDriverState *bs, int fd, int64_t offset,
static int coroutine_fn raw_co_truncate(BlockDriverState *bs, int64_t offset,
bool exact, PreallocMode prealloc,
- Error **errp)
+ BdrvRequestFlags flags, Error **errp)
{
BDRVRawState *s = bs->opaque;
struct stat st;
diff --git a/block/file-win32.c b/block/file-win32.c
index 1585983..a6b0dda 100644
--- a/block/file-win32.c
+++ b/block/file-win32.c
@@ -469,7 +469,7 @@ static void raw_close(BlockDriverState *bs)
static int coroutine_fn raw_co_truncate(BlockDriverState *bs, int64_t offset,
bool exact, PreallocMode prealloc,
- Error **errp)
+ BdrvRequestFlags flags, Error **errp)
{
BDRVRawState *s = bs->opaque;
LONG low, high;
diff --git a/block/gluster.c b/block/gluster.c
index 0aa1f2c..d06df90 100644
--- a/block/gluster.c
+++ b/block/gluster.c
@@ -1228,6 +1228,7 @@ static coroutine_fn int qemu_gluster_co_truncate(BlockDriverState *bs,
int64_t offset,
bool exact,
PreallocMode prealloc,
+ BdrvRequestFlags flags,
Error **errp)
{
BDRVGlusterState *s = bs->opaque;
diff --git a/block/io.c b/block/io.c
index f75777f..549e5a4 100644
--- a/block/io.c
+++ b/block/io.c
@@ -3320,6 +3320,7 @@ int coroutine_fn bdrv_co_truncate(BdrvChild *child, int64_t offset, bool exact,
BlockDriverState *bs = child->bs;
BlockDriver *drv = bs->drv;
BdrvTrackedRequest req;
+ BdrvRequestFlags flags = 0;
int64_t old_size, new_bytes;
int ret;
@@ -3370,7 +3371,12 @@ int coroutine_fn bdrv_co_truncate(BdrvChild *child, int64_t offset, bool exact,
}
if (drv->bdrv_co_truncate) {
- ret = drv->bdrv_co_truncate(bs, offset, exact, prealloc, errp);
+ if (flags & ~bs->supported_truncate_flags) {
+ error_setg(errp, "Block driver does not support requested flags");
+ ret = -ENOTSUP;
+ goto out;
+ }
+ ret = drv->bdrv_co_truncate(bs, offset, exact, prealloc, flags, errp);
} else if (bs->file && drv->is_filter) {
ret = bdrv_co_truncate(bs->file, offset, exact, prealloc, errp);
} else {
diff --git a/block/iscsi.c b/block/iscsi.c
index 16b0716..0bea2d3 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -2125,7 +2125,7 @@ static void iscsi_reopen_commit(BDRVReopenState *reopen_state)
static int coroutine_fn iscsi_co_truncate(BlockDriverState *bs, int64_t offset,
bool exact, PreallocMode prealloc,
- Error **errp)
+ BdrvRequestFlags flags, Error **errp)
{
IscsiLun *iscsilun = bs->opaque;
int64_t cur_length;
diff --git a/block/nfs.c b/block/nfs.c
index cc2413d..2393fbf 100644
--- a/block/nfs.c
+++ b/block/nfs.c
@@ -755,7 +755,8 @@ static int64_t nfs_get_allocated_file_size(BlockDriverState *bs)
static int coroutine_fn
nfs_file_co_truncate(BlockDriverState *bs, int64_t offset, bool exact,
- PreallocMode prealloc, Error **errp)
+ PreallocMode prealloc, BdrvRequestFlags flags,
+ Error **errp)
{
NFSClient *client = bs->opaque;
int ret;
diff --git a/block/qcow2.c b/block/qcow2.c
index dbd870a..977445e 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -3948,7 +3948,7 @@ fail:
static int coroutine_fn qcow2_co_truncate(BlockDriverState *bs, int64_t offset,
bool exact, PreallocMode prealloc,
- Error **errp)
+ BdrvRequestFlags flags, Error **errp)
{
BDRVQcow2State *s = bs->opaque;
uint64_t old_length;
diff --git a/block/qed.c b/block/qed.c
index 1af9b3c..fb6100b 100644
--- a/block/qed.c
+++ b/block/qed.c
@@ -1467,6 +1467,7 @@ static int coroutine_fn bdrv_qed_co_truncate(BlockDriverState *bs,
int64_t offset,
bool exact,
PreallocMode prealloc,
+ BdrvRequestFlags flags,
Error **errp)
{
BDRVQEDState *s = bs->opaque;
diff --git a/block/raw-format.c b/block/raw-format.c
index 4bb54f4..f994c4a 100644
--- a/block/raw-format.c
+++ b/block/raw-format.c
@@ -371,7 +371,7 @@ static void raw_refresh_limits(BlockDriverState *bs, Error **errp)
static int coroutine_fn raw_co_truncate(BlockDriverState *bs, int64_t offset,
bool exact, PreallocMode prealloc,
- Error **errp)
+ BdrvRequestFlags flags, Error **errp)
{
BDRVRawState *s = bs->opaque;
diff --git a/block/rbd.c b/block/rbd.c
index 8847259..fcdb60a 100644
--- a/block/rbd.c
+++ b/block/rbd.c
@@ -1090,6 +1090,7 @@ static int coroutine_fn qemu_rbd_co_truncate(BlockDriverState *bs,
int64_t offset,
bool exact,
PreallocMode prealloc,
+ BdrvRequestFlags flags,
Error **errp)
{
int r;
diff --git a/block/sheepdog.c b/block/sheepdog.c
index a8a7e32..077aed8 100644
--- a/block/sheepdog.c
+++ b/block/sheepdog.c
@@ -2288,7 +2288,7 @@ static int64_t sd_getlength(BlockDriverState *bs)
static int coroutine_fn sd_co_truncate(BlockDriverState *bs, int64_t offset,
bool exact, PreallocMode prealloc,
- Error **errp)
+ BdrvRequestFlags flags, Error **errp)
{
BDRVSheepdogState *s = bs->opaque;
int ret, fd;
@@ -2604,7 +2604,7 @@ static coroutine_fn int sd_co_writev(BlockDriverState *bs, int64_t sector_num,
assert(!flags);
if (offset > s->inode.vdi_size) {
- ret = sd_co_truncate(bs, offset, false, PREALLOC_MODE_OFF, NULL);
+ ret = sd_co_truncate(bs, offset, false, PREALLOC_MODE_OFF, 0, NULL);
if (ret < 0) {
return ret;
}
diff --git a/block/ssh.c b/block/ssh.c
index 84e9282..9eb33df 100644
--- a/block/ssh.c
+++ b/block/ssh.c
@@ -1298,7 +1298,7 @@ static int64_t ssh_getlength(BlockDriverState *bs)
static int coroutine_fn ssh_co_truncate(BlockDriverState *bs, int64_t offset,
bool exact, PreallocMode prealloc,
- Error **errp)
+ BdrvRequestFlags flags, Error **errp)
{
BDRVSSHState *s = bs->opaque;
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 876a83d..41f13ec 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -356,7 +356,7 @@ struct BlockDriver {
*/
int coroutine_fn (*bdrv_co_truncate)(BlockDriverState *bs, int64_t offset,
bool exact, PreallocMode prealloc,
- Error **errp);
+ BdrvRequestFlags flags, Error **errp);
int64_t (*bdrv_getlength)(BlockDriverState *bs);
bool has_variable_length;
@@ -849,6 +849,14 @@ struct BlockDriverState {
/* Flags honored during pwrite_zeroes (so far: BDRV_REQ_FUA,
* BDRV_REQ_MAY_UNMAP, BDRV_REQ_WRITE_UNCHANGED) */
unsigned int supported_zero_flags;
+ /*
+ * Flags honoured during truncate (so far: BDRV_REQ_ZERO_WRITE).
+ *
+ * If BDRV_REQ_ZERO_WRITE is given, the truncate operation must make sure
+ * that any added space reads as all zeros. If this can't be guaranteed,
+ * the operation must fail.
+ */
+ unsigned int supported_truncate_flags;
/* the following member gives a name to every node on the bs graph. */
char node_name[32];
diff --git a/tests/test-block-iothread.c b/tests/test-block-iothread.c
index 0c86180..2f3b763 100644
--- a/tests/test-block-iothread.c
+++ b/tests/test-block-iothread.c
@@ -46,7 +46,8 @@ static int coroutine_fn bdrv_test_co_pdiscard(BlockDriverState *bs,
static int coroutine_fn
bdrv_test_co_truncate(BlockDriverState *bs, int64_t offset, bool exact,
- PreallocMode prealloc, Error **errp)
+ PreallocMode prealloc, BdrvRequestFlags flags,
+ Error **errp)
{
return 0;
}
--
1.8.3.1

353
SOURCES/kvm-block-Add-flags-to-bdrv-_co-_truncate.patch Normal file
View File

@ -0,0 +1,353 @@
From 50127f0ff9e13a15fd5bfeb2662e2404ff20f364 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Mon, 8 Jun 2020 15:01:31 +0100
Subject: [PATCH 03/17] block: Add flags to bdrv(_co)_truncate()
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200608150140.38218-3-kwolf@redhat.com>
Patchwork-id: 97445
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 02/11] block: Add flags to bdrv(_co)_truncate()
Bugzilla: 1780574
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
RH-Acked-by: Eric Blake <eblake@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
Now that block drivers can support flags for .bdrv_co_truncate, expose
the parameter in the node level interfaces bdrv_co_truncate() and
bdrv_truncate().
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200424125448.63318-3-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 7b8e4857426f2e2de2441749996c6161b550bada)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/block-backend.c | 2 +-
block/crypto.c | 2 +-
block/io.c | 12 +++++++-----
block/parallels.c | 6 +++---
block/qcow.c | 4 ++--
block/qcow2-refcount.c | 2 +-
block/qcow2.c | 15 +++++++++------
block/raw-format.c | 2 +-
block/vhdx-log.c | 2 +-
block/vhdx.c | 2 +-
block/vmdk.c | 2 +-
include/block/block.h | 5 +++--
tests/test-block-iothread.c | 6 +++---
13 files changed, 34 insertions(+), 28 deletions(-)
diff --git a/block/block-backend.c b/block/block-backend.c
index 38ae413..8be2006 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -2144,7 +2144,7 @@ int blk_truncate(BlockBackend *blk, int64_t offset, bool exact,
return -ENOMEDIUM;
}
- return bdrv_truncate(blk->root, offset, exact, prealloc, errp);
+ return bdrv_truncate(blk->root, offset, exact, prealloc, 0, errp);
}
int blk_save_vmstate(BlockBackend *blk, const uint8_t *buf,
diff --git a/block/crypto.c b/block/crypto.c
index 6e4b726..fcb4a97 100644
--- a/block/crypto.c
+++ b/block/crypto.c
@@ -313,7 +313,7 @@ block_crypto_co_truncate(BlockDriverState *bs, int64_t offset, bool exact,
offset += payload_offset;
- return bdrv_co_truncate(bs->file, offset, exact, prealloc, errp);
+ return bdrv_co_truncate(bs->file, offset, exact, prealloc, 0, errp);
}
static void block_crypto_close(BlockDriverState *bs)
diff --git a/block/io.c b/block/io.c
index 549e5a4..3235ce5 100644
--- a/block/io.c
+++ b/block/io.c
@@ -3315,12 +3315,12 @@ static void bdrv_parent_cb_resize(BlockDriverState *bs)
* 'offset' bytes in length.
*/
int coroutine_fn bdrv_co_truncate(BdrvChild *child, int64_t offset, bool exact,
- PreallocMode prealloc, Error **errp)
+ PreallocMode prealloc, BdrvRequestFlags flags,
+ Error **errp)
{
BlockDriverState *bs = child->bs;
BlockDriver *drv = bs->drv;
BdrvTrackedRequest req;
- BdrvRequestFlags flags = 0;
int64_t old_size, new_bytes;
int ret;
@@ -3378,7 +3378,7 @@ int coroutine_fn bdrv_co_truncate(BdrvChild *child, int64_t offset, bool exact,
}
ret = drv->bdrv_co_truncate(bs, offset, exact, prealloc, flags, errp);
} else if (bs->file && drv->is_filter) {
- ret = bdrv_co_truncate(bs->file, offset, exact, prealloc, errp);
+ ret = bdrv_co_truncate(bs->file, offset, exact, prealloc, flags, errp);
} else {
error_setg(errp, "Image format driver does not support resize");
ret = -ENOTSUP;
@@ -3411,6 +3411,7 @@ typedef struct TruncateCo {
int64_t offset;
bool exact;
PreallocMode prealloc;
+ BdrvRequestFlags flags;
Error **errp;
int ret;
} TruncateCo;
@@ -3419,12 +3420,12 @@ static void coroutine_fn bdrv_truncate_co_entry(void *opaque)
{
TruncateCo *tco = opaque;
tco->ret = bdrv_co_truncate(tco->child, tco->offset, tco->exact,
- tco->prealloc, tco->errp);
+ tco->prealloc, tco->flags, tco->errp);
aio_wait_kick();
}
int bdrv_truncate(BdrvChild *child, int64_t offset, bool exact,
- PreallocMode prealloc, Error **errp)
+ PreallocMode prealloc, BdrvRequestFlags flags, Error **errp)
{
Coroutine *co;
TruncateCo tco = {
@@ -3432,6 +3433,7 @@ int bdrv_truncate(BdrvChild *child, int64_t offset, bool exact,
.offset = offset,
.exact = exact,
.prealloc = prealloc,
+ .flags = flags,
.errp = errp,
.ret = NOT_DONE,
};
diff --git a/block/parallels.c b/block/parallels.c
index 6d4ed77..2be92cf 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -203,7 +203,7 @@ static int64_t allocate_clusters(BlockDriverState *bs, int64_t sector_num,
} else {
ret = bdrv_truncate(bs->file,
(s->data_end + space) << BDRV_SECTOR_BITS,
- false, PREALLOC_MODE_OFF, NULL);
+ false, PREALLOC_MODE_OFF, 0, NULL);
}
if (ret < 0) {
return ret;
@@ -493,7 +493,7 @@ static int coroutine_fn parallels_co_check(BlockDriverState *bs,
* That means we have to pass exact=true.
*/
ret = bdrv_truncate(bs->file, res->image_end_offset, true,
- PREALLOC_MODE_OFF, &local_err);
+ PREALLOC_MODE_OFF, 0, &local_err);
if (ret < 0) {
error_report_err(local_err);
res->check_errors++;
@@ -889,7 +889,7 @@ static void parallels_close(BlockDriverState *bs)
/* errors are ignored, so we might as well pass exact=true */
bdrv_truncate(bs->file, s->data_end << BDRV_SECTOR_BITS, true,
- PREALLOC_MODE_OFF, NULL);
+ PREALLOC_MODE_OFF, 0, NULL);
}
g_free(s->bat_dirty_bmap);
diff --git a/block/qcow.c b/block/qcow.c
index 8973e4e..6b5f226 100644
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -480,7 +480,7 @@ static int get_cluster_offset(BlockDriverState *bs,
return -E2BIG;
}
ret = bdrv_truncate(bs->file, cluster_offset + s->cluster_size,
- false, PREALLOC_MODE_OFF, NULL);
+ false, PREALLOC_MODE_OFF, 0, NULL);
if (ret < 0) {
return ret;
}
@@ -1035,7 +1035,7 @@ static int qcow_make_empty(BlockDriverState *bs)
l1_length) < 0)
return -1;
ret = bdrv_truncate(bs->file, s->l1_table_offset + l1_length, false,
- PREALLOC_MODE_OFF, NULL);
+ PREALLOC_MODE_OFF, 0, NULL);
if (ret < 0)
return ret;
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index f67ac6b..3a90d75 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -2017,7 +2017,7 @@ static int check_refblocks(BlockDriverState *bs, BdrvCheckResult *res,
}
ret = bdrv_truncate(bs->file, offset + s->cluster_size, false,
- PREALLOC_MODE_OFF, &local_err);
+ PREALLOC_MODE_OFF, 0, &local_err);
if (ret < 0) {
error_report_err(local_err);
goto resize_fail;
diff --git a/block/qcow2.c b/block/qcow2.c
index 977445e..c0fdcb9 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -3082,7 +3082,7 @@ static int coroutine_fn preallocate_co(BlockDriverState *bs, uint64_t offset,
mode = PREALLOC_MODE_OFF;
}
ret = bdrv_co_truncate(s->data_file, host_offset + cur_bytes, false,
- mode, errp);
+ mode, 0, errp);
if (ret < 0) {
return ret;
}
@@ -4044,7 +4044,7 @@ static int coroutine_fn qcow2_co_truncate(BlockDriverState *bs, int64_t offset,
* always fulfilled, so there is no need to pass it on.)
*/
bdrv_co_truncate(bs->file, (last_cluster + 1) * s->cluster_size,
- false, PREALLOC_MODE_OFF, &local_err);
+ false, PREALLOC_MODE_OFF, 0, &local_err);
if (local_err) {
warn_reportf_err(local_err,
"Failed to truncate the tail of the image: ");
@@ -4066,7 +4066,8 @@ static int coroutine_fn qcow2_co_truncate(BlockDriverState *bs, int64_t offset,
* file should be resized to the exact target size, too,
* so we pass @exact here.
*/
- ret = bdrv_co_truncate(s->data_file, offset, exact, prealloc, errp);
+ ret = bdrv_co_truncate(s->data_file, offset, exact, prealloc, 0,
+ errp);
if (ret < 0) {
goto fail;
}
@@ -4152,7 +4153,8 @@ static int coroutine_fn qcow2_co_truncate(BlockDriverState *bs, int64_t offset,
new_file_size = allocation_start +
nb_new_data_clusters * s->cluster_size;
/* Image file grows, so @exact does not matter */
- ret = bdrv_co_truncate(bs->file, new_file_size, false, prealloc, errp);
+ ret = bdrv_co_truncate(bs->file, new_file_size, false, prealloc, 0,
+ errp);
if (ret < 0) {
error_prepend(errp, "Failed to resize underlying file: ");
qcow2_free_clusters(bs, allocation_start,
@@ -4255,7 +4257,8 @@ qcow2_co_pwritev_compressed_part(BlockDriverState *bs,
if (len < 0) {
return len;
}
- return bdrv_co_truncate(bs->file, len, false, PREALLOC_MODE_OFF, NULL);
+ return bdrv_co_truncate(bs->file, len, false, PREALLOC_MODE_OFF, 0,
+ NULL);
}
if (offset_into_cluster(s, offset)) {
@@ -4493,7 +4496,7 @@ static int make_completely_empty(BlockDriverState *bs)
}
ret = bdrv_truncate(bs->file, (3 + l1_clusters) * s->cluster_size, false,
- PREALLOC_MODE_OFF, &local_err);
+ PREALLOC_MODE_OFF, 0, &local_err);
if (ret < 0) {
error_report_err(local_err);
goto fail;
diff --git a/block/raw-format.c b/block/raw-format.c
index f994c4a..c3acf9a 100644
--- a/block/raw-format.c
+++ b/block/raw-format.c
@@ -387,7 +387,7 @@ static int coroutine_fn raw_co_truncate(BlockDriverState *bs, int64_t offset,
s->size = offset;
offset += s->offset;
- return bdrv_co_truncate(bs->file, offset, exact, prealloc, errp);
+ return bdrv_co_truncate(bs->file, offset, exact, prealloc, 0, errp);
}
static void raw_eject(BlockDriverState *bs, bool eject_flag)
diff --git a/block/vhdx-log.c b/block/vhdx-log.c
index 13a49c2..404fb5f 100644
--- a/block/vhdx-log.c
+++ b/block/vhdx-log.c
@@ -558,7 +558,7 @@ static int vhdx_log_flush(BlockDriverState *bs, BDRVVHDXState *s,
goto exit;
}
ret = bdrv_truncate(bs->file, new_file_size, false,
- PREALLOC_MODE_OFF, NULL);
+ PREALLOC_MODE_OFF, 0, NULL);
if (ret < 0) {
goto exit;
}
diff --git a/block/vhdx.c b/block/vhdx.c
index 33e57cd..5dfbb20 100644
--- a/block/vhdx.c
+++ b/block/vhdx.c
@@ -1264,7 +1264,7 @@ static int vhdx_allocate_block(BlockDriverState *bs, BDRVVHDXState *s,
}
return bdrv_truncate(bs->file, *new_offset + s->block_size, false,
- PREALLOC_MODE_OFF, NULL);
+ PREALLOC_MODE_OFF, 0, NULL);
}
/*
diff --git a/block/vmdk.c b/block/vmdk.c
index eb726f2..1bbf937 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -2077,7 +2077,7 @@ vmdk_co_pwritev_compressed(BlockDriverState *bs, uint64_t offset,
}
length = QEMU_ALIGN_UP(length, BDRV_SECTOR_SIZE);
ret = bdrv_truncate(s->extents[i].file, length, false,
- PREALLOC_MODE_OFF, NULL);
+ PREALLOC_MODE_OFF, 0, NULL);
if (ret < 0) {
return ret;
}
diff --git a/include/block/block.h b/include/block/block.h
index b2a3074..4913596 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -348,9 +348,10 @@ BlockDriverState *bdrv_find_backing_image(BlockDriverState *bs,
void bdrv_refresh_filename(BlockDriverState *bs);
int coroutine_fn bdrv_co_truncate(BdrvChild *child, int64_t offset, bool exact,
- PreallocMode prealloc, Error **errp);
+ PreallocMode prealloc, BdrvRequestFlags flags,
+ Error **errp);
int bdrv_truncate(BdrvChild *child, int64_t offset, bool exact,
- PreallocMode prealloc, Error **errp);
+ PreallocMode prealloc, BdrvRequestFlags flags, Error **errp);
int64_t bdrv_nb_sectors(BlockDriverState *bs);
int64_t bdrv_getlength(BlockDriverState *bs);
diff --git a/tests/test-block-iothread.c b/tests/test-block-iothread.c
index 2f3b763..71e9bce 100644
--- a/tests/test-block-iothread.c
+++ b/tests/test-block-iothread.c
@@ -186,18 +186,18 @@ static void test_sync_op_truncate(BdrvChild *c)
int ret;
/* Normal success path */
- ret = bdrv_truncate(c, 65536, false, PREALLOC_MODE_OFF, NULL);
+ ret = bdrv_truncate(c, 65536, false, PREALLOC_MODE_OFF, 0, NULL);
g_assert_cmpint(ret, ==, 0);
/* Early error: Negative offset */
- ret = bdrv_truncate(c, -2, false, PREALLOC_MODE_OFF, NULL);
+ ret = bdrv_truncate(c, -2, false, PREALLOC_MODE_OFF, 0, NULL);
g_assert_cmpint(ret, ==, -EINVAL);
/* Error: Read-only image */
c->bs->read_only = true;
c->bs->open_flags &= ~BDRV_O_RDWR;
- ret = bdrv_truncate(c, 65536, false, PREALLOC_MODE_OFF, NULL);
+ ret = bdrv_truncate(c, 65536, false, PREALLOC_MODE_OFF, 0, NULL);
g_assert_cmpint(ret, ==, -EACCES);
c->bs->read_only = false;
--
1.8.3.1

105
SOURCES/kvm-block-Call-attention-to-truncation-of-long-NBD-expor.patch Normal file
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@ -0,0 +1,105 @@
From c8ecaea34f03b8ddda7d2b41b0d6f397469c8959 Mon Sep 17 00:00:00 2001
From: Eric Blake <eblake@redhat.com>
Date: Wed, 10 Jun 2020 18:32:02 -0400
Subject: [PATCH 2/2] block: Call attention to truncation of long NBD exports
RH-Author: Eric Blake <eblake@redhat.com>
Message-id: <20200610183202.3780750-3-eblake@redhat.com>
Patchwork-id: 97495
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 2/2] block: Call attention to truncation of long NBD exports
Bugzilla: 1845384
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Commit 93676c88 relaxed our NBD client code to request export names up
to the NBD protocol maximum of 4096 bytes without NUL terminator, even
though the block layer can't store anything longer than 4096 bytes
including NUL terminator for display to the user. Since this means
there are some export names where we have to truncate things, we can
at least try to make the truncation a bit more obvious for the user.
Note that in spite of the truncated display name, we can still
communicate with an NBD server using such a long export name; this was
deemed nicer than refusing to even connect to such a server (since the
server may not be under our control, and since determining our actual
length limits gets tricky when nbd://host:port/export and
nbd+unix:///export?socket=/path are themselves variable-length
expansions beyond the export name but count towards the block layer
name length).
Reported-by: Xueqiang Wei <xuwei@redhat.com>
Fixes: https://bugzilla.redhat.com/1843684
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200610163741.3745251-3-eblake@redhat.com>
(cherry picked from commit 5c86bdf1208916ece0b87e1151c9b48ee54faa3e)
Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eduardo Lima (Etrunko) <etrunko@redhat.com>
---
block.c | 7 +++++--
block/nbd.c | 21 +++++++++++++--------
2 files changed, 18 insertions(+), 10 deletions(-)
diff --git a/block.c b/block.c
index 12c8941879..57740d312e 100644
--- a/block.c
+++ b/block.c
@@ -6683,8 +6683,11 @@ void bdrv_refresh_filename(BlockDriverState *bs)
pstrcpy(bs->filename, sizeof(bs->filename), bs->exact_filename);
} else {
QString *json = qobject_to_json(QOBJECT(bs->full_open_options));
- snprintf(bs->filename, sizeof(bs->filename), "json:%s",
- qstring_get_str(json));
+ if (snprintf(bs->filename, sizeof(bs->filename), "json:%s",
+ qstring_get_str(json)) >= sizeof(bs->filename)) {
+ /* Give user a hint if we truncated things. */
+ strcpy(bs->filename + sizeof(bs->filename) - 4, "...");
+ }
qobject_unref(json);
}
}
diff --git a/block/nbd.c b/block/nbd.c
index 927915d93d..5bb154017d 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -1978,6 +1978,7 @@ static void nbd_refresh_filename(BlockDriverState *bs)
{
BDRVNBDState *s = bs->opaque;
const char *host = NULL, *port = NULL, *path = NULL;
+ size_t len = 0;
if (s->saddr->type == SOCKET_ADDRESS_TYPE_INET) {
const InetSocketAddress *inet = &s->saddr->u.inet;
@@ -1990,17 +1991,21 @@ static void nbd_refresh_filename(BlockDriverState *bs)
} /* else can't represent as pseudo-filename */
if (path && s->export) {
- snprintf(bs->exact_filename, sizeof(bs->exact_filename),
- "nbd+unix:///%s?socket=%s", s->export, path);
+ len = snprintf(bs->exact_filename, sizeof(bs->exact_filename),
+ "nbd+unix:///%s?socket=%s", s->export, path);
} else if (path && !s->export) {
- snprintf(bs->exact_filename, sizeof(bs->exact_filename),
- "nbd+unix://?socket=%s", path);
+ len = snprintf(bs->exact_filename, sizeof(bs->exact_filename),
+ "nbd+unix://?socket=%s", path);
} else if (host && s->export) {
- snprintf(bs->exact_filename, sizeof(bs->exact_filename),
- "nbd://%s:%s/%s", host, port, s->export);
+ len = snprintf(bs->exact_filename, sizeof(bs->exact_filename),
+ "nbd://%s:%s/%s", host, port, s->export);
} else if (host && !s->export) {
- snprintf(bs->exact_filename, sizeof(bs->exact_filename),
- "nbd://%s:%s", host, port);
+ len = snprintf(bs->exact_filename, sizeof(bs->exact_filename),
+ "nbd://%s:%s", host, port);
+ }
+ if (len > sizeof(bs->exact_filename)) {
+ /* Name is too long to represent exactly, so leave it empty. */
+ bs->exact_filename[0] = '\0';
}
}
--
2.27.0

84
SOURCES/kvm-block-Fix-blk-in_flight-during-blk_wait_while_draine.patch Normal file
View File

@ -0,0 +1,84 @@
From f17b37b58a57d849d2ff5fa04f149d9415803a39 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Wed, 8 Apr 2020 17:29:17 +0100
Subject: [PATCH 6/6] block: Fix blk->in_flight during blk_wait_while_drained()
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200408172917.18712-7-kwolf@redhat.com>
Patchwork-id: 94599
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 6/6] block: Fix blk->in_flight during blk_wait_while_drained()
Bugzilla: 1817621
RH-Acked-by: Eric Blake <eblake@redhat.com>
RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
Waiting in blk_wait_while_drained() while blk->in_flight is increased
for the current request is wrong because it will cause the drain
operation to deadlock.
This patch makes sure that blk_wait_while_drained() is called with
blk->in_flight increased exactly once for the current request, and that
it temporarily decreases the counter while it waits.
Fixes: cf3129323f900ef5ddbccbe86e4fa801e88c566e
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200407121259.21350-4-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 7f16476fab14fc32388e0ebae793f64673848efa)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/block-backend.c | 17 +++++------------
1 file changed, 5 insertions(+), 12 deletions(-)
diff --git a/block/block-backend.c b/block/block-backend.c
index 610dbfa..38ae413 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1140,10 +1140,15 @@ static int blk_check_byte_request(BlockBackend *blk, int64_t offset,
return 0;
}
+/* To be called between exactly one pair of blk_inc/dec_in_flight() */
static void coroutine_fn blk_wait_while_drained(BlockBackend *blk)
{
+ assert(blk->in_flight > 0);
+
if (blk->quiesce_counter && !blk->disable_request_queuing) {
+ blk_dec_in_flight(blk);
qemu_co_queue_wait(&blk->queued_requests, NULL);
+ blk_inc_in_flight(blk);
}
}
@@ -1418,12 +1423,6 @@ static void blk_aio_read_entry(void *opaque)
BlkRwCo *rwco = &acb->rwco;
QEMUIOVector *qiov = rwco->iobuf;
- if (rwco->blk->quiesce_counter) {
- blk_dec_in_flight(rwco->blk);
- blk_wait_while_drained(rwco->blk);
- blk_inc_in_flight(rwco->blk);
- }
-
assert(qiov->size == acb->bytes);
rwco->ret = blk_do_preadv(rwco->blk, rwco->offset, acb->bytes,
qiov, rwco->flags);
@@ -1436,12 +1435,6 @@ static void blk_aio_write_entry(void *opaque)
BlkRwCo *rwco = &acb->rwco;
QEMUIOVector *qiov = rwco->iobuf;
- if (rwco->blk->quiesce_counter) {
- blk_dec_in_flight(rwco->blk);
- blk_wait_while_drained(rwco->blk);
- blk_inc_in_flight(rwco->blk);
- }
-
assert(!qiov || qiov->size == acb->bytes);
rwco->ret = blk_do_pwritev_part(rwco->blk, rwco->offset, acb->bytes,
qiov, 0, rwco->flags);
--
1.8.3.1

91
SOURCES/kvm-block-Fix-cross-AioContext-blockdev-snapshot.patch Normal file
View File

@ -0,0 +1,91 @@
From 5774af5a3c713d0c93010c30453812eae6a749cd Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Fri, 13 Mar 2020 12:34:37 +0000
Subject: [PATCH 17/20] block: Fix cross-AioContext blockdev-snapshot
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200313123439.10548-12-kwolf@redhat.com>
Patchwork-id: 94286
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 11/13] block: Fix cross-AioContext blockdev-snapshot
Bugzilla: 1790482 1805143
RH-Acked-by: John Snow <jsnow@redhat.com>
RH-Acked-by: Daniel P. Berrange <berrange@redhat.com>
RH-Acked-by: Peter Krempa <pkrempa@redhat.com>
external_snapshot_prepare() tries to move the overlay to the AioContext
of the backing file (the snapshotted node). However, it's possible that
this doesn't work, but the backing file can instead be moved to the
overlay's AioContext (e.g. opening the backing chain for a mirror
target).
bdrv_append() already indirectly uses bdrv_attach_node(), which takes
care to move nodes to make sure they use the same AioContext and which
tries both directions.
So the problem has a simple fix: Just delete the unnecessary extra
bdrv_try_set_aio_context() call in external_snapshot_prepare() and
instead assert in bdrv_append() that both nodes were indeed moved to the
same AioContext.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200310113831.27293-6-kwolf@redhat.com>
Tested-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 30dd65f307b647eef8156c4a33bd007823ef85cb)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block.c | 1 +
blockdev.c | 16 ----------------
2 files changed, 1 insertion(+), 16 deletions(-)
diff --git a/block.c b/block.c
index 354d388..ec29b1e 100644
--- a/block.c
+++ b/block.c
@@ -4327,6 +4327,7 @@ void bdrv_replace_node(BlockDriverState *from, BlockDriverState *to,
bdrv_ref(from);
assert(qemu_get_current_aio_context() == qemu_get_aio_context());
+ assert(bdrv_get_aio_context(from) == bdrv_get_aio_context(to));
bdrv_drained_begin(from);
/* Put all parents into @list and calculate their cumulative permissions */
diff --git a/blockdev.c b/blockdev.c
index 7918533..c8d4b51 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1535,9 +1535,7 @@ static void external_snapshot_prepare(BlkActionState *common,
DO_UPCAST(ExternalSnapshotState, common, common);
TransactionAction *action = common->action;
AioContext *aio_context;
- AioContext *old_context;
uint64_t perm, shared;
- int ret;
/* 'blockdev-snapshot' and 'blockdev-snapshot-sync' have similar
* purpose but a different set of parameters */
@@ -1678,20 +1676,6 @@ static void external_snapshot_prepare(BlkActionState *common,
goto out;
}
- /* Honor bdrv_try_set_aio_context() context acquisition requirements. */
- old_context = bdrv_get_aio_context(state->new_bs);
- aio_context_release(aio_context);
- aio_context_acquire(old_context);
-
- ret = bdrv_try_set_aio_context(state->new_bs, aio_context, errp);
-
- aio_context_release(old_context);
- aio_context_acquire(aio_context);
-
- if (ret < 0) {
- goto out;
- }
-
/* This removes our old bs and adds the new bs. This is an operation that
* can fail, so we need to do it in .prepare; undoing it for abort is
* always possible. */
--
1.8.3.1

60
SOURCES/kvm-block-Fix-leak-in-bdrv_create_file_fallback.patch Normal file
View File

@ -0,0 +1,60 @@
From 05452efd7e0fb0522099ae09a396f8f97e66014a Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <mlevitsk@redhat.com>
Date: Wed, 11 Mar 2020 10:51:47 +0000
Subject: [PATCH 06/20] block: Fix leak in bdrv_create_file_fallback()
RH-Author: Maxim Levitsky <mlevitsk@redhat.com>
Message-id: <20200311105147.13208-7-mlevitsk@redhat.com>
Patchwork-id: 94229
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 6/6] block: Fix leak in bdrv_create_file_fallback()
Bugzilla: 1640894
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
RH-Acked-by: John Snow <jsnow@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
From: Max Reitz <mreitz@redhat.com>
@options is leaked by the first two return statements in this function.
Note that blk_new_open() takes the reference to @options even on
failure, so all we need to do to fix the leak is to move the QDict
allocation down to where we actually need it.
Reported-by: Coverity (CID 1419884)
Fixes: fd17146cd93d1704cd96d7c2757b325fc7aac6fd
("block: Generic file creation fallback")
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200225155618.133412-1-mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit eeea1faa099f82328f5831cf252f8ce0a59a9287)
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/block.c b/block.c
index 3beec7f..e1a4e38 100644
--- a/block.c
+++ b/block.c
@@ -600,7 +600,7 @@ static int bdrv_create_file_fallback(const char *filename, BlockDriver *drv,
QemuOpts *opts, Error **errp)
{
BlockBackend *blk;
- QDict *options = qdict_new();
+ QDict *options;
int64_t size = 0;
char *buf = NULL;
PreallocMode prealloc;
@@ -623,6 +623,7 @@ static int bdrv_create_file_fallback(const char *filename, BlockDriver *drv,
return -ENOTSUP;
}
+ options = qdict_new();
qdict_put_str(options, "driver", drv->format_name);
blk = blk_new_open(filename, NULL, options,
--
1.8.3.1

227
SOURCES/kvm-block-Generic-file-creation-fallback.patch Normal file
View File

@ -0,0 +1,227 @@
From 882d09226b7f45b72c5b7763c4c4aba182e0f8a1 Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <mlevitsk@redhat.com>
Date: Wed, 11 Mar 2020 10:51:43 +0000
Subject: [PATCH 02/20] block: Generic file creation fallback
RH-Author: Maxim Levitsky <mlevitsk@redhat.com>
Message-id: <20200311105147.13208-3-mlevitsk@redhat.com>
Patchwork-id: 94227
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 2/6] block: Generic file creation fallback
Bugzilla: 1640894
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
RH-Acked-by: John Snow <jsnow@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
From: Max Reitz <mreitz@redhat.com>
If a protocol driver does not support image creation, we can see whether
maybe the file exists already. If so, just truncating it will be
sufficient.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200122164532.178040-3-mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
(cherry picked from commit fd17146cd93d1704cd96d7c2757b325fc7aac6fd)
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block.c | 159 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 147 insertions(+), 12 deletions(-)
diff --git a/block.c b/block.c
index 2e5e8b6..3beec7f 100644
--- a/block.c
+++ b/block.c
@@ -532,20 +532,139 @@ out:
return ret;
}
-int bdrv_create_file(const char *filename, QemuOpts *opts, Error **errp)
+/**
+ * Helper function for bdrv_create_file_fallback(): Resize @blk to at
+ * least the given @minimum_size.
+ *
+ * On success, return @blk's actual length.
+ * Otherwise, return -errno.
+ */
+static int64_t create_file_fallback_truncate(BlockBackend *blk,
+ int64_t minimum_size, Error **errp)
{
- BlockDriver *drv;
+ Error *local_err = NULL;
+ int64_t size;
+ int ret;
+
+ ret = blk_truncate(blk, minimum_size, false, PREALLOC_MODE_OFF, &local_err);
+ if (ret < 0 && ret != -ENOTSUP) {
+ error_propagate(errp, local_err);
+ return ret;
+ }
+
+ size = blk_getlength(blk);
+ if (size < 0) {
+ error_free(local_err);
+ error_setg_errno(errp, -size,
+ "Failed to inquire the new image file's length");
+ return size;
+ }
+
+ if (size < minimum_size) {
+ /* Need to grow the image, but we failed to do that */
+ error_propagate(errp, local_err);
+ return -ENOTSUP;
+ }
+
+ error_free(local_err);
+ local_err = NULL;
+
+ return size;
+}
+
+/**
+ * Helper function for bdrv_create_file_fallback(): Zero the first
+ * sector to remove any potentially pre-existing image header.
+ */
+static int create_file_fallback_zero_first_sector(BlockBackend *blk,
+ int64_t current_size,
+ Error **errp)
+{
+ int64_t bytes_to_clear;
+ int ret;
+
+ bytes_to_clear = MIN(current_size, BDRV_SECTOR_SIZE);
+ if (bytes_to_clear) {
+ ret = blk_pwrite_zeroes(blk, 0, bytes_to_clear, BDRV_REQ_MAY_UNMAP);
+ if (ret < 0) {
+ error_setg_errno(errp, -ret,
+ "Failed to clear the new image's first sector");
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int bdrv_create_file_fallback(const char *filename, BlockDriver *drv,
+ QemuOpts *opts, Error **errp)
+{
+ BlockBackend *blk;
+ QDict *options = qdict_new();
+ int64_t size = 0;
+ char *buf = NULL;
+ PreallocMode prealloc;
Error *local_err = NULL;
int ret;
+ size = qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0);
+ buf = qemu_opt_get_del(opts, BLOCK_OPT_PREALLOC);
+ prealloc = qapi_enum_parse(&PreallocMode_lookup, buf,
+ PREALLOC_MODE_OFF, &local_err);
+ g_free(buf);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return -EINVAL;
+ }
+
+ if (prealloc != PREALLOC_MODE_OFF) {
+ error_setg(errp, "Unsupported preallocation mode '%s'",
+ PreallocMode_str(prealloc));
+ return -ENOTSUP;
+ }
+
+ qdict_put_str(options, "driver", drv->format_name);
+
+ blk = blk_new_open(filename, NULL, options,
+ BDRV_O_RDWR | BDRV_O_RESIZE, errp);
+ if (!blk) {
+ error_prepend(errp, "Protocol driver '%s' does not support image "
+ "creation, and opening the image failed: ",
+ drv->format_name);
+ return -EINVAL;
+ }
+
+ size = create_file_fallback_truncate(blk, size, errp);
+ if (size < 0) {
+ ret = size;
+ goto out;
+ }
+
+ ret = create_file_fallback_zero_first_sector(blk, size, errp);
+ if (ret < 0) {
+ goto out;
+ }
+
+ ret = 0;
+out:
+ blk_unref(blk);
+ return ret;
+}
+
+int bdrv_create_file(const char *filename, QemuOpts *opts, Error **errp)
+{
+ BlockDriver *drv;
+
drv = bdrv_find_protocol(filename, true, errp);
if (drv == NULL) {
return -ENOENT;
}
- ret = bdrv_create(drv, filename, opts, &local_err);
- error_propagate(errp, local_err);
- return ret;
+ if (drv->bdrv_co_create_opts) {
+ return bdrv_create(drv, filename, opts, errp);
+ } else {
+ return bdrv_create_file_fallback(filename, drv, opts, errp);
+ }
}
/**
@@ -1422,6 +1541,24 @@ QemuOptsList bdrv_runtime_opts = {
},
};
+static QemuOptsList fallback_create_opts = {
+ .name = "fallback-create-opts",
+ .head = QTAILQ_HEAD_INITIALIZER(fallback_create_opts.head),
+ .desc = {
+ {
+ .name = BLOCK_OPT_SIZE,
+ .type = QEMU_OPT_SIZE,
+ .help = "Virtual disk size"
+ },
+ {
+ .name = BLOCK_OPT_PREALLOC,
+ .type = QEMU_OPT_STRING,
+ .help = "Preallocation mode (allowed values: off)"
+ },
+ { /* end of list */ }
+ }
+};
+
/*
* Common part for opening disk images and files
*
@@ -5743,14 +5880,12 @@ void bdrv_img_create(const char *filename, const char *fmt,
return;
}
- if (!proto_drv->create_opts) {
- error_setg(errp, "Protocol driver '%s' does not support image creation",
- proto_drv->format_name);
- return;
- }
-
create_opts = qemu_opts_append(create_opts, drv->create_opts);
- create_opts = qemu_opts_append(create_opts, proto_drv->create_opts);
+ if (proto_drv->create_opts) {
+ create_opts = qemu_opts_append(create_opts, proto_drv->create_opts);
+ } else {
+ create_opts = qemu_opts_append(create_opts, &fallback_create_opts);
+ }
/* Create parameter list with default values */
opts = qemu_opts_create(create_opts, NULL, 0, &error_abort);
--
1.8.3.1

295
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@ -0,0 +1,295 @@
From 52cc1d1cd2f695c5761d65baec961d14552a79ed Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Wed, 8 Apr 2020 17:29:16 +0100
Subject: [PATCH 5/6] block: Increase BB.in_flight for coroutine and sync
interfaces
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200408172917.18712-6-kwolf@redhat.com>
Patchwork-id: 94600
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 5/6] block: Increase BB.in_flight for coroutine and sync interfaces
Bugzilla: 1817621
RH-Acked-by: Eric Blake <eblake@redhat.com>
RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
External callers of blk_co_*() and of the synchronous blk_*() functions
don't currently increase the BlockBackend.in_flight counter, but calls
from blk_aio_*() do, so there is an inconsistency whether the counter
has been increased or not.
This patch moves the actual operations to static functions that can
later know they will always be called with in_flight increased exactly
once, even for external callers using the blk_co_*() coroutine
interfaces.
If the public blk_co_*() interface is unused, remove it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200407121259.21350-3-kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit fbb92b6798894d3bf62fe3578d99fa62c720b242)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/block-backend.c | 103 ++++++++++++++++++++++++++++++++---------
include/sysemu/block-backend.h | 1 -
2 files changed, 80 insertions(+), 24 deletions(-)
diff --git a/block/block-backend.c b/block/block-backend.c
index 17b2e87..610dbfa 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1147,9 +1147,10 @@ static void coroutine_fn blk_wait_while_drained(BlockBackend *blk)
}
}
-int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset,
- unsigned int bytes, QEMUIOVector *qiov,
- BdrvRequestFlags flags)
+/* To be called between exactly one pair of blk_inc/dec_in_flight() */
+static int coroutine_fn
+blk_do_preadv(BlockBackend *blk, int64_t offset, unsigned int bytes,
+ QEMUIOVector *qiov, BdrvRequestFlags flags)
{
int ret;
BlockDriverState *bs;
@@ -1178,10 +1179,24 @@ int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset,
return ret;
}
-int coroutine_fn blk_co_pwritev_part(BlockBackend *blk, int64_t offset,
- unsigned int bytes,
- QEMUIOVector *qiov, size_t qiov_offset,
- BdrvRequestFlags flags)
+int coroutine_fn blk_co_preadv(BlockBackend *blk, int64_t offset,
+ unsigned int bytes, QEMUIOVector *qiov,
+ BdrvRequestFlags flags)
+{
+ int ret;
+
+ blk_inc_in_flight(blk);
+ ret = blk_do_preadv(blk, offset, bytes, qiov, flags);
+ blk_dec_in_flight(blk);
+
+ return ret;
+}
+
+/* To be called between exactly one pair of blk_inc/dec_in_flight() */
+static int coroutine_fn
+blk_do_pwritev_part(BlockBackend *blk, int64_t offset, unsigned int bytes,
+ QEMUIOVector *qiov, size_t qiov_offset,
+ BdrvRequestFlags flags)
{
int ret;
BlockDriverState *bs;
@@ -1214,6 +1229,20 @@ int coroutine_fn blk_co_pwritev_part(BlockBackend *blk, int64_t offset,
return ret;
}
+int coroutine_fn blk_co_pwritev_part(BlockBackend *blk, int64_t offset,
+ unsigned int bytes,
+ QEMUIOVector *qiov, size_t qiov_offset,
+ BdrvRequestFlags flags)
+{
+ int ret;
+
+ blk_inc_in_flight(blk);
+ ret = blk_do_pwritev_part(blk, offset, bytes, qiov, qiov_offset, flags);
+ blk_dec_in_flight(blk);
+
+ return ret;
+}
+
int coroutine_fn blk_co_pwritev(BlockBackend *blk, int64_t offset,
unsigned int bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags)
@@ -1234,7 +1263,7 @@ static void blk_read_entry(void *opaque)
BlkRwCo *rwco = opaque;
QEMUIOVector *qiov = rwco->iobuf;
- rwco->ret = blk_co_preadv(rwco->blk, rwco->offset, qiov->size,
+ rwco->ret = blk_do_preadv(rwco->blk, rwco->offset, qiov->size,
qiov, rwco->flags);
aio_wait_kick();
}
@@ -1244,8 +1273,8 @@ static void blk_write_entry(void *opaque)
BlkRwCo *rwco = opaque;
QEMUIOVector *qiov = rwco->iobuf;
- rwco->ret = blk_co_pwritev(rwco->blk, rwco->offset, qiov->size,
- qiov, rwco->flags);
+ rwco->ret = blk_do_pwritev_part(rwco->blk, rwco->offset, qiov->size,
+ qiov, 0, rwco->flags);
aio_wait_kick();
}
@@ -1262,6 +1291,7 @@ static int blk_prw(BlockBackend *blk, int64_t offset, uint8_t *buf,
.ret = NOT_DONE,
};
+ blk_inc_in_flight(blk);
if (qemu_in_coroutine()) {
/* Fast-path if already in coroutine context */
co_entry(&rwco);
@@ -1270,6 +1300,7 @@ static int blk_prw(BlockBackend *blk, int64_t offset, uint8_t *buf,
bdrv_coroutine_enter(blk_bs(blk), co);
BDRV_POLL_WHILE(blk_bs(blk), rwco.ret == NOT_DONE);
}
+ blk_dec_in_flight(blk);
return rwco.ret;
}
@@ -1394,7 +1425,7 @@ static void blk_aio_read_entry(void *opaque)
}
assert(qiov->size == acb->bytes);
- rwco->ret = blk_co_preadv(rwco->blk, rwco->offset, acb->bytes,
+ rwco->ret = blk_do_preadv(rwco->blk, rwco->offset, acb->bytes,
qiov, rwco->flags);
blk_aio_complete(acb);
}
@@ -1412,8 +1443,8 @@ static void blk_aio_write_entry(void *opaque)
}
assert(!qiov || qiov->size == acb->bytes);
- rwco->ret = blk_co_pwritev(rwco->blk, rwco->offset, acb->bytes,
- qiov, rwco->flags);
+ rwco->ret = blk_do_pwritev_part(rwco->blk, rwco->offset, acb->bytes,
+ qiov, 0, rwco->flags);
blk_aio_complete(acb);
}
@@ -1498,7 +1529,9 @@ void blk_aio_cancel_async(BlockAIOCB *acb)
bdrv_aio_cancel_async(acb);
}
-int blk_co_ioctl(BlockBackend *blk, unsigned long int req, void *buf)
+/* To be called between exactly one pair of blk_inc/dec_in_flight() */
+static int coroutine_fn
+blk_do_ioctl(BlockBackend *blk, unsigned long int req, void *buf)
{
blk_wait_while_drained(blk);
@@ -1514,8 +1547,7 @@ static void blk_ioctl_entry(void *opaque)
BlkRwCo *rwco = opaque;
QEMUIOVector *qiov = rwco->iobuf;
- rwco->ret = blk_co_ioctl(rwco->blk, rwco->offset,
- qiov->iov[0].iov_base);
+ rwco->ret = blk_do_ioctl(rwco->blk, rwco->offset, qiov->iov[0].iov_base);
aio_wait_kick();
}
@@ -1529,7 +1561,7 @@ static void blk_aio_ioctl_entry(void *opaque)
BlkAioEmAIOCB *acb = opaque;
BlkRwCo *rwco = &acb->rwco;
- rwco->ret = blk_co_ioctl(rwco->blk, rwco->offset, rwco->iobuf);
+ rwco->ret = blk_do_ioctl(rwco->blk, rwco->offset, rwco->iobuf);
blk_aio_complete(acb);
}
@@ -1540,7 +1572,9 @@ BlockAIOCB *blk_aio_ioctl(BlockBackend *blk, unsigned long int req, void *buf,
return blk_aio_prwv(blk, req, 0, buf, blk_aio_ioctl_entry, 0, cb, opaque);
}
-int blk_co_pdiscard(BlockBackend *blk, int64_t offset, int bytes)
+/* To be called between exactly one pair of blk_inc/dec_in_flight() */
+static int coroutine_fn
+blk_do_pdiscard(BlockBackend *blk, int64_t offset, int bytes)
{
int ret;
@@ -1559,7 +1593,7 @@ static void blk_aio_pdiscard_entry(void *opaque)
BlkAioEmAIOCB *acb = opaque;
BlkRwCo *rwco = &acb->rwco;
- rwco->ret = blk_co_pdiscard(rwco->blk, rwco->offset, acb->bytes);
+ rwco->ret = blk_do_pdiscard(rwco->blk, rwco->offset, acb->bytes);
blk_aio_complete(acb);
}
@@ -1571,12 +1605,23 @@ BlockAIOCB *blk_aio_pdiscard(BlockBackend *blk,
cb, opaque);
}
+int coroutine_fn blk_co_pdiscard(BlockBackend *blk, int64_t offset, int bytes)
+{
+ int ret;
+
+ blk_inc_in_flight(blk);
+ ret = blk_do_pdiscard(blk, offset, bytes);
+ blk_dec_in_flight(blk);
+
+ return ret;
+}
+
static void blk_pdiscard_entry(void *opaque)
{
BlkRwCo *rwco = opaque;
QEMUIOVector *qiov = rwco->iobuf;
- rwco->ret = blk_co_pdiscard(rwco->blk, rwco->offset, qiov->size);
+ rwco->ret = blk_do_pdiscard(rwco->blk, rwco->offset, qiov->size);
aio_wait_kick();
}
@@ -1585,7 +1630,8 @@ int blk_pdiscard(BlockBackend *blk, int64_t offset, int bytes)
return blk_prw(blk, offset, NULL, bytes, blk_pdiscard_entry, 0);
}
-int blk_co_flush(BlockBackend *blk)
+/* To be called between exactly one pair of blk_inc/dec_in_flight() */
+static int coroutine_fn blk_do_flush(BlockBackend *blk)
{
blk_wait_while_drained(blk);
@@ -1601,7 +1647,7 @@ static void blk_aio_flush_entry(void *opaque)
BlkAioEmAIOCB *acb = opaque;
BlkRwCo *rwco = &acb->rwco;
- rwco->ret = blk_co_flush(rwco->blk);
+ rwco->ret = blk_do_flush(rwco->blk);
blk_aio_complete(acb);
}
@@ -1611,10 +1657,21 @@ BlockAIOCB *blk_aio_flush(BlockBackend *blk,
return blk_aio_prwv(blk, 0, 0, NULL, blk_aio_flush_entry, 0, cb, opaque);
}
+int coroutine_fn blk_co_flush(BlockBackend *blk)
+{
+ int ret;
+
+ blk_inc_in_flight(blk);
+ ret = blk_do_flush(blk);
+ blk_dec_in_flight(blk);
+
+ return ret;
+}
+
static void blk_flush_entry(void *opaque)
{
BlkRwCo *rwco = opaque;
- rwco->ret = blk_co_flush(rwco->blk);
+ rwco->ret = blk_do_flush(rwco->blk);
aio_wait_kick();
}
diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h
index b198dec..9bbdbd6 100644
--- a/include/sysemu/block-backend.h
+++ b/include/sysemu/block-backend.h
@@ -171,7 +171,6 @@ BlockAIOCB *blk_aio_pdiscard(BlockBackend *blk, int64_t offset, int bytes,
BlockCompletionFunc *cb, void *opaque);
void blk_aio_cancel(BlockAIOCB *acb);
void blk_aio_cancel_async(BlockAIOCB *acb);
-int blk_co_ioctl(BlockBackend *blk, unsigned long int req, void *buf);
int blk_ioctl(BlockBackend *blk, unsigned long int req, void *buf);
BlockAIOCB *blk_aio_ioctl(BlockBackend *blk, unsigned long int req, void *buf,
BlockCompletionFunc *cb, void *opaque);
--
1.8.3.1

65
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@ -0,0 +1,65 @@
From f7dd953c2d0380cef3c351afb03d68c6fcda1dca Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Fri, 13 Mar 2020 12:34:28 +0000
Subject: [PATCH 08/20] block: Introduce 'bdrv_reopen_commit_post' step
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200313123439.10548-3-kwolf@redhat.com>
Patchwork-id: 94278
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 02/13] block: Introduce 'bdrv_reopen_commit_post' step
Bugzilla: 1790482 1805143
RH-Acked-by: John Snow <jsnow@redhat.com>
RH-Acked-by: Daniel P. Berrange <berrange@redhat.com>
RH-Acked-by: Peter Krempa <pkrempa@redhat.com>
From: Peter Krempa <pkrempa@redhat.com>
Add another step in the reopen process where driver can execute code
after permission changes are comitted.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Message-Id: <adc02cf591c3cb34e98e33518eb1c540a0f27db1.1582893284.git.pkrempa@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 17e1e2be5f9e84e0298e28e70675655b43e225ea)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block.c | 9 +++++++++
include/block/block_int.h | 1 +
2 files changed, 10 insertions(+)
diff --git a/block.c b/block.c
index e1a4e38..a744bb5 100644
--- a/block.c
+++ b/block.c
@@ -3657,6 +3657,15 @@ cleanup_perm:
}
}
}
+
+ if (ret == 0) {
+ QTAILQ_FOREACH_REVERSE(bs_entry, bs_queue, entry) {
+ BlockDriverState *bs = bs_entry->state.bs;
+
+ if (bs->drv->bdrv_reopen_commit_post)
+ bs->drv->bdrv_reopen_commit_post(&bs_entry->state);
+ }
+ }
cleanup:
QTAILQ_FOREACH_SAFE(bs_entry, bs_queue, entry, next) {
if (ret) {
diff --git a/include/block/block_int.h b/include/block/block_int.h
index dd033d0..c168690 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -123,6 +123,7 @@ struct BlockDriver {
int (*bdrv_reopen_prepare)(BDRVReopenState *reopen_state,
BlockReopenQueue *queue, Error **errp);
void (*bdrv_reopen_commit)(BDRVReopenState *reopen_state);
+ void (*bdrv_reopen_commit_post)(BDRVReopenState *reopen_state);
void (*bdrv_reopen_abort)(BDRVReopenState *reopen_state);
void (*bdrv_join_options)(QDict *options, QDict *old_options);
--
1.8.3.1

67
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@ -0,0 +1,67 @@
From 294ab4c4963295556d12ac15150b48c8536175a7 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Fri, 13 Mar 2020 12:34:33 +0000
Subject: [PATCH 13/20] block: Make bdrv_get_cumulative_perm() public
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200313123439.10548-8-kwolf@redhat.com>
Patchwork-id: 94287
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 07/13] block: Make bdrv_get_cumulative_perm() public
Bugzilla: 1790482 1805143
RH-Acked-by: John Snow <jsnow@redhat.com>
RH-Acked-by: Daniel P. Berrange <berrange@redhat.com>
RH-Acked-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200310113831.27293-2-kwolf@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit c7a0f2be8f95b220cdadbba9a9236eaf115951dc)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block.c | 6 ++----
include/block/block_int.h | 3 +++
2 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/block.c b/block.c
index 39e4647..354d388 100644
--- a/block.c
+++ b/block.c
@@ -1850,8 +1850,6 @@ static int bdrv_child_check_perm(BdrvChild *c, BlockReopenQueue *q,
bool *tighten_restrictions, Error **errp);
static void bdrv_child_abort_perm_update(BdrvChild *c);
static void bdrv_child_set_perm(BdrvChild *c, uint64_t perm, uint64_t shared);
-static void bdrv_get_cumulative_perm(BlockDriverState *bs, uint64_t *perm,
- uint64_t *shared_perm);
typedef struct BlockReopenQueueEntry {
bool prepared;
@@ -2075,8 +2073,8 @@ static void bdrv_set_perm(BlockDriverState *bs, uint64_t cumulative_perms,
}
}
-static void bdrv_get_cumulative_perm(BlockDriverState *bs, uint64_t *perm,
- uint64_t *shared_perm)
+void bdrv_get_cumulative_perm(BlockDriverState *bs, uint64_t *perm,
+ uint64_t *shared_perm)
{
BdrvChild *c;
uint64_t cumulative_perms = 0;
diff --git a/include/block/block_int.h b/include/block/block_int.h
index c168690..96e327b 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -1228,6 +1228,9 @@ BdrvChild *bdrv_root_attach_child(BlockDriverState *child_bs,
void *opaque, Error **errp);
void bdrv_root_unref_child(BdrvChild *child);
+void bdrv_get_cumulative_perm(BlockDriverState *bs, uint64_t *perm,
+ uint64_t *shared_perm);
+
/**
* Sets a BdrvChild's permissions. Avoid if the parent is a BDS; use
* bdrv_child_refresh_perms() instead and make the parent's
--
1.8.3.1

145
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@ -0,0 +1,145 @@
From 41d6c207c482093df8669f7cdcdb49bb25dba741 Mon Sep 17 00:00:00 2001
From: Eric Blake <eblake@redhat.com>
Date: Tue, 2 Jun 2020 02:34:12 +0100
Subject: [PATCH 07/26] block: Make it easier to learn which BDS support
bitmaps
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Eric Blake <eblake@redhat.com>
Message-id: <20200602023420.2133649-5-eblake@redhat.com>
Patchwork-id: 97071
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 04/12] block: Make it easier to learn which BDS support bitmaps
Bugzilla: 1779893 1779904
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
Upcoming patches will enhance bitmap support in qemu-img, but in doing
so, it turns out to be nice to suppress output when persistent bitmaps
make no sense (such as on a qcow2 v2 image). Add a hook to make this
easier to query.
This patch adds a new callback .bdrv_supports_persistent_dirty_bitmap,
rather than trying to shoehorn the answer in via existing callbacks.
In particular, while it might have been possible to overload
.bdrv_co_can_store_new_dirty_bitmap to special-case a NULL input to
answer whether any persistent bitmaps are supported, that is at odds
with whether a particular bitmap can be stored (for example, even on
an image that supports persistent bitmaps but has currently filled up
the maximum number of bitmaps, attempts to store another one should
fail); and the new functionality doesn't require coroutine safety.
Similarly, we could have added one more piece of information to
.bdrv_get_info, but then again, most callers to that function tend to
already discard extraneous information, and making it a catch-all
rather than a series of dedicated scalar queries hasn't really
simplified life.
In the future, when we improve the ability to look up bitmaps through
a filter, we will probably also want to teach the block layer to
automatically let filters pass this request on through.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200513011648.166876-4-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
(cherry picked from commit ef893b5c84f3199d777e33966dc28839f71b1a5c)
Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/dirty-bitmap.c | 9 +++++++++
block/qcow2-bitmap.c | 7 +++++++
block/qcow2.c | 2 ++
block/qcow2.h | 1 +
include/block/block_int.h | 1 +
include/block/dirty-bitmap.h | 1 +
6 files changed, 21 insertions(+)
diff --git a/block/dirty-bitmap.c b/block/dirty-bitmap.c
index 7039e82..2f96acc 100644
--- a/block/dirty-bitmap.c
+++ b/block/dirty-bitmap.c
@@ -478,6 +478,15 @@ int bdrv_remove_persistent_dirty_bitmap(BlockDriverState *bs, const char *name,
}
}
+bool
+bdrv_supports_persistent_dirty_bitmap(BlockDriverState *bs)
+{
+ if (bs->drv && bs->drv->bdrv_supports_persistent_dirty_bitmap) {
+ return bs->drv->bdrv_supports_persistent_dirty_bitmap(bs);
+ }
+ return false;
+}
+
static bool coroutine_fn
bdrv_co_can_store_new_dirty_bitmap(BlockDriverState *bs, const char *name,
uint32_t granularity, Error **errp)
diff --git a/block/qcow2-bitmap.c b/block/qcow2-bitmap.c
index c6c8ebb..cbac905 100644
--- a/block/qcow2-bitmap.c
+++ b/block/qcow2-bitmap.c
@@ -1759,3 +1759,10 @@ fail:
name, bdrv_get_device_or_node_name(bs));
return false;
}
+
+bool qcow2_supports_persistent_dirty_bitmap(BlockDriverState *bs)
+{
+ BDRVQcow2State *s = bs->opaque;
+
+ return s->qcow_version >= 3;
+}
diff --git a/block/qcow2.c b/block/qcow2.c
index af0ad4a..36b0f7d 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -5551,6 +5551,8 @@ BlockDriver bdrv_qcow2 = {
.bdrv_detach_aio_context = qcow2_detach_aio_context,
.bdrv_attach_aio_context = qcow2_attach_aio_context,
+ .bdrv_supports_persistent_dirty_bitmap =
+ qcow2_supports_persistent_dirty_bitmap,
.bdrv_co_can_store_new_dirty_bitmap = qcow2_co_can_store_new_dirty_bitmap,
.bdrv_co_remove_persistent_dirty_bitmap =
qcow2_co_remove_persistent_dirty_bitmap,
diff --git a/block/qcow2.h b/block/qcow2.h
index 0942126..ceb1ceb 100644
--- a/block/qcow2.h
+++ b/block/qcow2.h
@@ -767,6 +767,7 @@ bool qcow2_co_can_store_new_dirty_bitmap(BlockDriverState *bs,
int qcow2_co_remove_persistent_dirty_bitmap(BlockDriverState *bs,
const char *name,
Error **errp);
+bool qcow2_supports_persistent_dirty_bitmap(BlockDriverState *bs);
ssize_t coroutine_fn
qcow2_co_compress(BlockDriverState *bs, void *dest, size_t dest_size,
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 562dca1..cc18e8d 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -568,6 +568,7 @@ struct BlockDriver {
uint64_t parent_perm, uint64_t parent_shared,
uint64_t *nperm, uint64_t *nshared);
+ bool (*bdrv_supports_persistent_dirty_bitmap)(BlockDriverState *bs);
bool (*bdrv_co_can_store_new_dirty_bitmap)(BlockDriverState *bs,
const char *name,
uint32_t granularity,
diff --git a/include/block/dirty-bitmap.h b/include/block/dirty-bitmap.h
index e2b20ec..f6e9a38 100644
--- a/include/block/dirty-bitmap.h
+++ b/include/block/dirty-bitmap.h
@@ -16,6 +16,7 @@ typedef enum BitmapCheckFlags {
#define BDRV_BITMAP_MAX_NAME_SIZE 1023
+bool bdrv_supports_persistent_dirty_bitmap(BlockDriverState *bs);
BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState *bs,
uint32_t granularity,
const char *name,
--
1.8.3.1

117
SOURCES/kvm-block-Relax-restrictions-for-blockdev-snapshot.patch Normal file
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@ -0,0 +1,117 @@
From 9ba321e18a357c1a3a238ceee301bbb174f96eee Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Fri, 13 Mar 2020 12:34:34 +0000
Subject: [PATCH 14/20] block: Relax restrictions for blockdev-snapshot
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200313123439.10548-9-kwolf@redhat.com>
Patchwork-id: 94285
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 08/13] block: Relax restrictions for blockdev-snapshot
Bugzilla: 1790482 1805143
RH-Acked-by: John Snow <jsnow@redhat.com>
RH-Acked-by: Daniel P. Berrange <berrange@redhat.com>
RH-Acked-by: Peter Krempa <pkrempa@redhat.com>
blockdev-snapshot returned an error if the overlay was already in use,
which it defined as having any BlockBackend parent. This is in fact both
too strict (some parents can tolerate the change of visible data caused
by attaching a backing file) and too loose (some non-BlockBackend
parents may not be happy with it).
One important use case that is prevented by the too strict check is live
storage migration with blockdev-mirror. Here, the target node is
usually opened without a backing file so that the active layer is
mirrored while its backing chain can be copied in the background.
The backing chain should be attached to the mirror target node when
finalising the job, just before switching the users of the source node
to the new copy (at which point the mirror job still has a reference to
the node). drive-mirror did this automatically, but with blockdev-mirror
this is the job of the QMP client, so it needs a way to do this.
blockdev-snapshot is the obvious way, so this patch makes it work in
this scenario. The new condition is that no parent uses CONSISTENT_READ
permissions. This will ensure that the operation will still be blocked
when the node is attached to the guest device, so blockdev-snapshot
remains safe.
(For the sake of completeness, x-blockdev-reopen can be used to achieve
the same, however it is a big hammer, performs the graph change
completely unchecked and is still experimental. So even with the option
of using x-blockdev-reopen, there are reasons why blockdev-snapshot
should be able to perform this operation.)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200310113831.27293-3-kwolf@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Tested-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit d29d3d1f80b3947fb26e7139645c83de66d146a9)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
blockdev.c | 14 ++++++++------
tests/qemu-iotests/085.out | 4 ++--
2 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/blockdev.c b/blockdev.c
index 4cd9a58..7918533 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1536,6 +1536,7 @@ static void external_snapshot_prepare(BlkActionState *common,
TransactionAction *action = common->action;
AioContext *aio_context;
AioContext *old_context;
+ uint64_t perm, shared;
int ret;
/* 'blockdev-snapshot' and 'blockdev-snapshot-sync' have similar
@@ -1656,16 +1657,17 @@ static void external_snapshot_prepare(BlkActionState *common,
goto out;
}
- if (bdrv_has_blk(state->new_bs)) {
+ /*
+ * Allow attaching a backing file to an overlay that's already in use only
+ * if the parents don't assume that they are already seeing a valid image.
+ * (Specifically, allow it as a mirror target, which is write-only access.)
+ */
+ bdrv_get_cumulative_perm(state->new_bs, &perm, &shared);
+ if (perm & BLK_PERM_CONSISTENT_READ) {
error_setg(errp, "The overlay is already in use");
goto out;
}
- if (bdrv_op_is_blocked(state->new_bs, BLOCK_OP_TYPE_EXTERNAL_SNAPSHOT,
- errp)) {
- goto out;
- }
-
if (state->new_bs->backing != NULL) {
error_setg(errp, "The overlay already has a backing image");
goto out;
diff --git a/tests/qemu-iotests/085.out b/tests/qemu-iotests/085.out
index bb50227..487d920 100644
--- a/tests/qemu-iotests/085.out
+++ b/tests/qemu-iotests/085.out
@@ -82,7 +82,7 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/
=== Invalid command - cannot create a snapshot using a file BDS ===
{ 'execute': 'blockdev-snapshot', 'arguments': { 'node':'virtio0', 'overlay':'file_12' } }
-{"error": {"class": "GenericError", "desc": "The overlay does not support backing images"}}
+{"error": {"class": "GenericError", "desc": "The overlay is already in use"}}
=== Invalid command - snapshot node used as active layer ===
@@ -96,7 +96,7 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/
=== Invalid command - snapshot node used as backing hd ===
{ 'execute': 'blockdev-snapshot', 'arguments': { 'node': 'virtio0', 'overlay':'snap_11' } }
-{"error": {"class": "GenericError", "desc": "Node 'snap_11' is busy: node is used as backing hd of 'snap_12'"}}
+{"error": {"class": "GenericError", "desc": "The overlay is already in use"}}
=== Invalid command - snapshot node has a backing image ===
--
1.8.3.1

57
SOURCES/kvm-block-Versioned-x-blockdev-reopen-API-with-feature-f.patch Normal file
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@ -0,0 +1,57 @@
From 371d312300251c0dc24522607b06b7e47e760b53 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Fri, 13 Mar 2020 12:34:32 +0000
Subject: [PATCH 12/20] block: Versioned x-blockdev-reopen API with feature
flag
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200313123439.10548-7-kwolf@redhat.com>
Patchwork-id: 94283
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 06/13] block: Versioned x-blockdev-reopen API with feature flag
Bugzilla: 1790482 1805143
RH-Acked-by: Eric Blake <eblake@redhat.com>
RH-Acked-by: John Snow <jsnow@redhat.com>
RH-Acked-by: Daniel P. Berrange <berrange@redhat.com>
RH-Acked-by: Peter Krempa <pkrempa@redhat.com>
x-blockdev-reopen is still considered unstable upstream. libvirt needs
(a small subset of) it for incremental backups, though.
Add a downstream-only feature flag that effectively makes this a
versioned interface. As long as the feature is present, we promise that
we won't change the interface incompatibly. Incompatible changes to the
command will require us to drop the feature flag (and possibly introduce
a new one if the new version is still not stable upstream).
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
qapi/block-core.json | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/qapi/block-core.json b/qapi/block-core.json
index 0cf68fe..a1e85b0 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -4202,10 +4202,17 @@
# image does not have a default backing file name as part of its
# metadata.
#
+# Features:
+# @__com.redhat_rhel-av-8_2_0-api: Versioning the downstream interface while
+# it's still unstable upstream. As long as
+# this flag is present, this command will not
+# change incompatibly.
+#
# Since: 4.0
##
{ 'command': 'x-blockdev-reopen',
- 'data': 'BlockdevOptions', 'boxed': true }
+ 'data': 'BlockdevOptions', 'boxed': true,
+ 'features': [ '__com.redhat_rhel-av-8_2_0-api' ] }
##
# @blockdev-del:
--
1.8.3.1

308
SOURCES/kvm-block-always-fill-entire-LUKS-header-space-with-zero.patch Normal file
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@ -0,0 +1,308 @@
From 67f36d057aa71ca56ebc17ef28a7cb70bac6c6b6 Mon Sep 17 00:00:00 2001
From: "Daniel P. Berrange" <berrange@redhat.com>
Date: Tue, 5 May 2020 16:46:01 +0100
Subject: [PATCH 01/12] block: always fill entire LUKS header space with zeros
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Daniel P. Berrange <berrange@redhat.com>
Message-id: <20200505164601.1059974-2-berrange@redhat.com>
Patchwork-id: 96277
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 1/1] block: always fill entire LUKS header space with zeros
Bugzilla: 1775462
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
RH-Acked-by: John Snow <jsnow@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
When initializing the LUKS header the size with default encryption
parameters will currently be 2068480 bytes. This is rounded up to
a multiple of the cluster size, 2081792, with 64k sectors. If the
end of the header is not the same as the end of the cluster we fill
the extra space with zeros. This was forgetting that not even the
space allocated for the header will be fully initialized, as we
only write key material for the first key slot. The space left
for the other 7 slots is never written to.
An optimization to the ref count checking code:
commit a5fff8d4b4d928311a5005efa12d0991fe3b66f9 (refs/bisect/bad)
Author: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Date: Wed Feb 27 16:14:30 2019 +0300
qcow2-refcount: avoid eating RAM
made the assumption that every cluster which was allocated would
have at least some data written to it. This was violated by way
the LUKS header is only partially written, with much space simply
reserved for future use.
Depending on the cluster size this problem was masked by the
logic which wrote zeros between the end of the LUKS header and
the end of the cluster.
$ qemu-img create --object secret,id=cluster_encrypt0,data=123456 \
-f qcow2 -o cluster_size=2k,encrypt.iter-time=1,\
encrypt.format=luks,encrypt.key-secret=cluster_encrypt0 \
cluster_size_check.qcow2 100M
Formatting 'cluster_size_check.qcow2', fmt=qcow2 size=104857600
encrypt.format=luks encrypt.key-secret=cluster_encrypt0
encrypt.iter-time=1 cluster_size=2048 lazy_refcounts=off refcount_bits=16
$ qemu-img check --object secret,id=cluster_encrypt0,data=redhat \
'json:{"driver": "qcow2", "encrypt.format": "luks", \
"encrypt.key-secret": "cluster_encrypt0", \
"file.driver": "file", "file.filename": "cluster_size_check.qcow2"}'
ERROR: counting reference for region exceeding the end of the file by one cluster or more: offset 0x2000 size 0x1f9000
Leaked cluster 4 refcount=1 reference=0
...snip...
Leaked cluster 130 refcount=1 reference=0
1 errors were found on the image.
Data may be corrupted, or further writes to the image may corrupt it.
127 leaked clusters were found on the image.
This means waste of disk space, but no harm to data.
Image end offset: 268288
The problem only exists when the disk image is entirely empty. Writing
data to the disk image payload will solve the problem by causing the
end of the file to be extended further.
The change fixes it by ensuring that the entire allocated LUKS header
region is fully initialized with zeros. The qemu-img check will still
fail for any pre-existing disk images created prior to this change,
unless at least 1 byte of the payload is written to.
Fully writing zeros to the entire LUKS header is a good idea regardless
as it ensures that space has been allocated on the host filesystem (or
whatever block storage backend is used).
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200207135520.2669430-1-berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
(cherry picked from commit 087ab8e775f48766068e65de1bc99d03b40d1670)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
Conflicts:
tests/qemu-iotests/group: no test 283 in downstream
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/qcow2.c | 11 ++++--
tests/qemu-iotests/284 | 97 ++++++++++++++++++++++++++++++++++++++++++++++
tests/qemu-iotests/284.out | 62 +++++++++++++++++++++++++++++
tests/qemu-iotests/group | 1 +
4 files changed, 167 insertions(+), 4 deletions(-)
create mode 100755 tests/qemu-iotests/284
create mode 100644 tests/qemu-iotests/284.out
diff --git a/block/qcow2.c b/block/qcow2.c
index 71067c6..af0ad4a 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -135,13 +135,16 @@ static ssize_t qcow2_crypto_hdr_init_func(QCryptoBlock *block, size_t headerlen,
s->crypto_header.length = headerlen;
s->crypto_header.offset = ret;
- /* Zero fill remaining space in cluster so it has predictable
- * content in case of future spec changes */
+ /*
+ * Zero fill all space in cluster so it has predictable
+ * content, as we may not initialize some regions of the
+ * header (eg only 1 out of 8 key slots will be initialized)
+ */
clusterlen = size_to_clusters(s, headerlen) * s->cluster_size;
assert(qcow2_pre_write_overlap_check(bs, 0, ret, clusterlen, false) == 0);
ret = bdrv_pwrite_zeroes(bs->file,
- ret + headerlen,
- clusterlen - headerlen, 0);
+ ret,
+ clusterlen, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not zero fill encryption header");
return -1;
diff --git a/tests/qemu-iotests/284 b/tests/qemu-iotests/284
new file mode 100755
index 0000000..071e89b
--- /dev/null
+++ b/tests/qemu-iotests/284
@@ -0,0 +1,97 @@
+#!/usr/bin/env bash
+#
+# Test ref count checks on encrypted images
+#
+# Copyright (C) 2019 Red Hat, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+# creator
+owner=berrange@redhat.com
+
+seq=`basename $0`
+echo "QA output created by $seq"
+
+status=1 # failure is the default!
+
+_cleanup()
+{
+ _cleanup_test_img
+}
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+# get standard environment, filters and checks
+. ./common.rc
+. ./common.filter
+
+_supported_fmt qcow2
+_supported_proto generic
+_supported_os Linux
+
+
+size=1M
+
+SECRET="secret,id=sec0,data=astrochicken"
+
+IMGSPEC="driver=$IMGFMT,file.filename=$TEST_IMG,encrypt.key-secret=sec0"
+QEMU_IO_OPTIONS=$QEMU_IO_OPTIONS_NO_FMT
+
+_run_test()
+{
+ IMGOPTSSYNTAX=true
+ OLD_TEST_IMG="$TEST_IMG"
+ TEST_IMG="driver=$IMGFMT,file.filename=$TEST_IMG,encrypt.key-secret=sec0"
+ QEMU_IMG_EXTRA_ARGS="--image-opts --object $SECRET"
+
+ echo
+ echo "== cluster size $csize"
+ echo "== checking image refcounts =="
+ _check_test_img
+
+ echo
+ echo "== writing some data =="
+ $QEMU_IO -c "write -P 0x9 0 1" $QEMU_IMG_EXTRA_ARGS $TEST_IMG | _filter_qemu_io | _filter_testdir
+ echo
+ echo "== rechecking image refcounts =="
+ _check_test_img
+
+ echo
+ echo "== writing some more data =="
+ $QEMU_IO -c "write -P 0x9 $csize 1" $QEMU_IMG_EXTRA_ARGS $TEST_IMG | _filter_qemu_io | _filter_testdir
+ echo
+ echo "== rechecking image refcounts =="
+ _check_test_img
+
+ TEST_IMG="$OLD_TEST_IMG"
+ QEMU_IMG_EXTRA_ARGS=
+ IMGOPTSSYNTAX=
+}
+
+
+echo
+echo "testing LUKS qcow2 encryption"
+echo
+
+for csize in 512 2048 32768
+do
+ _make_test_img --object $SECRET -o "encrypt.format=luks,encrypt.key-secret=sec0,encrypt.iter-time=10,cluster_size=$csize" $size
+ _run_test
+ _cleanup_test_img
+done
+
+# success, all done
+echo "*** done"
+rm -f $seq.full
+status=0
diff --git a/tests/qemu-iotests/284.out b/tests/qemu-iotests/284.out
new file mode 100644
index 0000000..48216f5
--- /dev/null
+++ b/tests/qemu-iotests/284.out
@@ -0,0 +1,62 @@
+QA output created by 284
+
+testing LUKS qcow2 encryption
+
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 encrypt.format=luks encrypt.key-secret=sec0 encrypt.iter-time=10
+
+== cluster size 512
+== checking image refcounts ==
+No errors were found on the image.
+
+== writing some data ==
+wrote 1/1 bytes at offset 0
+1 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== rechecking image refcounts ==
+No errors were found on the image.
+
+== writing some more data ==
+wrote 1/1 bytes at offset 512
+1 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== rechecking image refcounts ==
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 encrypt.format=luks encrypt.key-secret=sec0 encrypt.iter-time=10
+
+== cluster size 2048
+== checking image refcounts ==
+No errors were found on the image.
+
+== writing some data ==
+wrote 1/1 bytes at offset 0
+1 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== rechecking image refcounts ==
+No errors were found on the image.
+
+== writing some more data ==
+wrote 1/1 bytes at offset 2048
+1 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== rechecking image refcounts ==
+No errors were found on the image.
+Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 encrypt.format=luks encrypt.key-secret=sec0 encrypt.iter-time=10
+
+== cluster size 32768
+== checking image refcounts ==
+No errors were found on the image.
+
+== writing some data ==
+wrote 1/1 bytes at offset 0
+1 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== rechecking image refcounts ==
+No errors were found on the image.
+
+== writing some more data ==
+wrote 1/1 bytes at offset 32768
+1 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+
+== rechecking image refcounts ==
+No errors were found on the image.
+*** done
diff --git a/tests/qemu-iotests/group b/tests/qemu-iotests/group
index e47cbfc..9c565cf 100644
--- a/tests/qemu-iotests/group
+++ b/tests/qemu-iotests/group
@@ -289,3 +289,4 @@
277 rw quick
280 rw migration quick
281 rw quick
+284 rw
--
1.8.3.1

294
SOURCES/kvm-block-backend-Add-flags-to-blk_truncate.patch Normal file
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@ -0,0 +1,294 @@
From 07a93e74efa4861f54dd3d4bec01885f7af2fee3 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Mon, 8 Jun 2020 17:01:32 +0200
Subject: [PATCH 04/17] block-backend: Add flags to blk_truncate()
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200608150140.38218-4-kwolf@redhat.com>
Patchwork-id: 97450
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 03/11] block-backend: Add flags to blk_truncate()
Bugzilla: 1780574
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
RH-Acked-by: Eric Blake <eblake@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
Now that node level interface bdrv_truncate() supports passing request
flags to the block driver, expose this on the BlockBackend level, too.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200424125448.63318-4-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 8c6242b6f383e43fd11d2c50f8bcdd2bba1100fc)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block.c | 3 ++-
block/block-backend.c | 4 ++--
block/commit.c | 4 ++--
block/crypto.c | 2 +-
block/mirror.c | 2 +-
block/qcow2.c | 4 ++--
block/qed.c | 2 +-
block/vdi.c | 2 +-
block/vhdx.c | 4 ++--
block/vmdk.c | 6 +++---
block/vpc.c | 2 +-
blockdev.c | 2 +-
include/sysemu/block-backend.h | 2 +-
qemu-img.c | 2 +-
qemu-io-cmds.c | 2 +-
15 files changed, 22 insertions(+), 21 deletions(-)
diff --git a/block.c b/block.c
index d6a05da..12c8941 100644
--- a/block.c
+++ b/block.c
@@ -547,7 +547,8 @@ static int64_t create_file_fallback_truncate(BlockBackend *blk,
int64_t size;
int ret;
- ret = blk_truncate(blk, minimum_size, false, PREALLOC_MODE_OFF, &local_err);
+ ret = blk_truncate(blk, minimum_size, false, PREALLOC_MODE_OFF, 0,
+ &local_err);
if (ret < 0 && ret != -ENOTSUP) {
error_propagate(errp, local_err);
return ret;
diff --git a/block/block-backend.c b/block/block-backend.c
index 8be2006..17ed6d8 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -2137,14 +2137,14 @@ int blk_pwrite_compressed(BlockBackend *blk, int64_t offset, const void *buf,
}
int blk_truncate(BlockBackend *blk, int64_t offset, bool exact,
- PreallocMode prealloc, Error **errp)
+ PreallocMode prealloc, BdrvRequestFlags flags, Error **errp)
{
if (!blk_is_available(blk)) {
error_setg(errp, "No medium inserted");
return -ENOMEDIUM;
}
- return bdrv_truncate(blk->root, offset, exact, prealloc, 0, errp);
+ return bdrv_truncate(blk->root, offset, exact, prealloc, flags, errp);
}
int blk_save_vmstate(BlockBackend *blk, const uint8_t *buf,
diff --git a/block/commit.c b/block/commit.c
index 23c90b3..075ebf8 100644
--- a/block/commit.c
+++ b/block/commit.c
@@ -155,7 +155,7 @@ static int coroutine_fn commit_run(Job *job, Error **errp)
}
if (base_len < len) {
- ret = blk_truncate(s->base, len, false, PREALLOC_MODE_OFF, NULL);
+ ret = blk_truncate(s->base, len, false, PREALLOC_MODE_OFF, 0, NULL);
if (ret) {
goto out;
}
@@ -471,7 +471,7 @@ int bdrv_commit(BlockDriverState *bs)
* grow the backing file image if possible. If not possible,
* we must return an error */
if (length > backing_length) {
- ret = blk_truncate(backing, length, false, PREALLOC_MODE_OFF,
+ ret = blk_truncate(backing, length, false, PREALLOC_MODE_OFF, 0,
&local_err);
if (ret < 0) {
error_report_err(local_err);
diff --git a/block/crypto.c b/block/crypto.c
index fcb4a97..83a8fc0 100644
--- a/block/crypto.c
+++ b/block/crypto.c
@@ -115,7 +115,7 @@ static ssize_t block_crypto_init_func(QCryptoBlock *block,
* which will be used by the crypto header
*/
return blk_truncate(data->blk, data->size + headerlen, false,
- data->prealloc, errp);
+ data->prealloc, 0, errp);
}
diff --git a/block/mirror.c b/block/mirror.c
index 0d32fca..c8028cd 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -886,7 +886,7 @@ static int coroutine_fn mirror_run(Job *job, Error **errp)
if (s->base == blk_bs(s->target)) {
if (s->bdev_length > target_length) {
ret = blk_truncate(s->target, s->bdev_length, false,
- PREALLOC_MODE_OFF, NULL);
+ PREALLOC_MODE_OFF, 0, NULL);
if (ret < 0) {
goto immediate_exit;
}
diff --git a/block/qcow2.c b/block/qcow2.c
index c0fdcb9..86aa74a 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -3497,7 +3497,7 @@ qcow2_co_create(BlockdevCreateOptions *create_options, Error **errp)
/* Okay, now that we have a valid image, let's give it the right size */
ret = blk_truncate(blk, qcow2_opts->size, false, qcow2_opts->preallocation,
- errp);
+ 0, errp);
if (ret < 0) {
error_prepend(errp, "Could not resize image: ");
goto out;
@@ -5347,7 +5347,7 @@ static int qcow2_amend_options(BlockDriverState *bs, QemuOpts *opts,
* Amending image options should ensure that the image has
* exactly the given new values, so pass exact=true here.
*/
- ret = blk_truncate(blk, new_size, true, PREALLOC_MODE_OFF, errp);
+ ret = blk_truncate(blk, new_size, true, PREALLOC_MODE_OFF, 0, errp);
blk_unref(blk);
if (ret < 0) {
return ret;
diff --git a/block/qed.c b/block/qed.c
index fb6100b..b0fdb8f 100644
--- a/block/qed.c
+++ b/block/qed.c
@@ -677,7 +677,7 @@ static int coroutine_fn bdrv_qed_co_create(BlockdevCreateOptions *opts,
* The QED format associates file length with allocation status,
* so a new file (which is empty) must have a length of 0.
*/
- ret = blk_truncate(blk, 0, true, PREALLOC_MODE_OFF, errp);
+ ret = blk_truncate(blk, 0, true, PREALLOC_MODE_OFF, 0, errp);
if (ret < 0) {
goto out;
}
diff --git a/block/vdi.c b/block/vdi.c
index e1a11f2..0c7835a 100644
--- a/block/vdi.c
+++ b/block/vdi.c
@@ -875,7 +875,7 @@ static int coroutine_fn vdi_co_do_create(BlockdevCreateOptions *create_options,
if (image_type == VDI_TYPE_STATIC) {
ret = blk_truncate(blk, offset + blocks * block_size, false,
- PREALLOC_MODE_OFF, errp);
+ PREALLOC_MODE_OFF, 0, errp);
if (ret < 0) {
error_prepend(errp, "Failed to statically allocate file");
goto exit;
diff --git a/block/vhdx.c b/block/vhdx.c
index 5dfbb20..21497f7 100644
--- a/block/vhdx.c
+++ b/block/vhdx.c
@@ -1703,13 +1703,13 @@ static int vhdx_create_bat(BlockBackend *blk, BDRVVHDXState *s,
/* All zeroes, so we can just extend the file - the end of the BAT
* is the furthest thing we have written yet */
ret = blk_truncate(blk, data_file_offset, false, PREALLOC_MODE_OFF,
- errp);
+ 0, errp);
if (ret < 0) {
goto exit;
}
} else if (type == VHDX_TYPE_FIXED) {
ret = blk_truncate(blk, data_file_offset + image_size, false,
- PREALLOC_MODE_OFF, errp);
+ PREALLOC_MODE_OFF, 0, errp);
if (ret < 0) {
goto exit;
}
diff --git a/block/vmdk.c b/block/vmdk.c
index 1bbf937..1bd3991 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -2118,7 +2118,7 @@ static int vmdk_init_extent(BlockBackend *blk,
int gd_buf_size;
if (flat) {
- ret = blk_truncate(blk, filesize, false, PREALLOC_MODE_OFF, errp);
+ ret = blk_truncate(blk, filesize, false, PREALLOC_MODE_OFF, 0, errp);
goto exit;
}
magic = cpu_to_be32(VMDK4_MAGIC);
@@ -2182,7 +2182,7 @@ static int vmdk_init_extent(BlockBackend *blk,
}
ret = blk_truncate(blk, le64_to_cpu(header.grain_offset) << 9, false,
- PREALLOC_MODE_OFF, errp);
+ PREALLOC_MODE_OFF, 0, errp);
if (ret < 0) {
goto exit;
}
@@ -2523,7 +2523,7 @@ static int coroutine_fn vmdk_co_do_create(int64_t size,
/* bdrv_pwrite write padding zeros to align to sector, we don't need that
* for description file */
if (desc_offset == 0) {
- ret = blk_truncate(blk, desc_len, false, PREALLOC_MODE_OFF, errp);
+ ret = blk_truncate(blk, desc_len, false, PREALLOC_MODE_OFF, 0, errp);
if (ret < 0) {
goto exit;
}
diff --git a/block/vpc.c b/block/vpc.c
index 6df75e2..d5e7dc8 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -898,7 +898,7 @@ static int create_fixed_disk(BlockBackend *blk, uint8_t *buf,
/* Add footer to total size */
total_size += HEADER_SIZE;
- ret = blk_truncate(blk, total_size, false, PREALLOC_MODE_OFF, errp);
+ ret = blk_truncate(blk, total_size, false, PREALLOC_MODE_OFF, 0, errp);
if (ret < 0) {
return ret;
}
diff --git a/blockdev.c b/blockdev.c
index 5128c9b..6dde52a 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -3055,7 +3055,7 @@ void qmp_block_resize(bool has_device, const char *device,
}
bdrv_drained_begin(bs);
- ret = blk_truncate(blk, size, false, PREALLOC_MODE_OFF, errp);
+ ret = blk_truncate(blk, size, false, PREALLOC_MODE_OFF, 0, errp);
bdrv_drained_end(bs);
out:
diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h
index 9bbdbd6..34de7fa 100644
--- a/include/sysemu/block-backend.h
+++ b/include/sysemu/block-backend.h
@@ -237,7 +237,7 @@ int coroutine_fn blk_co_pwrite_zeroes(BlockBackend *blk, int64_t offset,
int blk_pwrite_compressed(BlockBackend *blk, int64_t offset, const void *buf,
int bytes);
int blk_truncate(BlockBackend *blk, int64_t offset, bool exact,
- PreallocMode prealloc, Error **errp);
+ PreallocMode prealloc, BdrvRequestFlags flags, Error **errp);
int blk_pdiscard(BlockBackend *blk, int64_t offset, int bytes);
int blk_save_vmstate(BlockBackend *blk, const uint8_t *buf,
int64_t pos, int size);
diff --git a/qemu-img.c b/qemu-img.c
index 6dc881b..a27ad70 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -3939,7 +3939,7 @@ static int img_resize(int argc, char **argv)
* resizing, so pass @exact=true. It is of no use to report
* success when the image has not actually been resized.
*/
- ret = blk_truncate(blk, total_size, true, prealloc, &err);
+ ret = blk_truncate(blk, total_size, true, prealloc, 0, &err);
if (!ret) {
qprintf(quiet, "Image resized.\n");
} else {
diff --git a/qemu-io-cmds.c b/qemu-io-cmds.c
index 1b7e700..851f07e 100644
--- a/qemu-io-cmds.c
+++ b/qemu-io-cmds.c
@@ -1715,7 +1715,7 @@ static int truncate_f(BlockBackend *blk, int argc, char **argv)
* exact=true. It is better to err on the "emit more errors" side
* than to be overly permissive.
*/
- ret = blk_truncate(blk, offset, true, PREALLOC_MODE_OFF, &local_err);
+ ret = blk_truncate(blk, offset, true, PREALLOC_MODE_OFF, 0, &local_err);
if (ret < 0) {
error_report_err(local_err);
return ret;
--
1.8.3.1

158
SOURCES/kvm-block-backend-Reorder-flush-pdiscard-function-defini.patch Normal file
View File

@ -0,0 +1,158 @@
From 6cc456c4c1e6557fdc7e138e8ef8171b71609222 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Wed, 8 Apr 2020 17:29:15 +0100
Subject: [PATCH 4/6] block-backend: Reorder flush/pdiscard function
definitions
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200408172917.18712-5-kwolf@redhat.com>
Patchwork-id: 94598
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 4/6] block-backend: Reorder flush/pdiscard function definitions
Bugzilla: 1817621
RH-Acked-by: Eric Blake <eblake@redhat.com>
RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
Move all variants of the flush/pdiscard functions to a single place and
put the blk_co_*() version first because it is called by all other
variants (and will become static in the next patch).
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200407121259.21350-2-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 564806c529d4e0acad209b1e5b864a8886092f1f)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/block-backend.c | 92 +++++++++++++++++++++++++--------------------------
1 file changed, 46 insertions(+), 46 deletions(-)
diff --git a/block/block-backend.c b/block/block-backend.c
index 8b8f2a8..17b2e87 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -1488,38 +1488,6 @@ BlockAIOCB *blk_aio_pwritev(BlockBackend *blk, int64_t offset,
blk_aio_write_entry, flags, cb, opaque);
}
-static void blk_aio_flush_entry(void *opaque)
-{
- BlkAioEmAIOCB *acb = opaque;
- BlkRwCo *rwco = &acb->rwco;
-
- rwco->ret = blk_co_flush(rwco->blk);
- blk_aio_complete(acb);
-}
-
-BlockAIOCB *blk_aio_flush(BlockBackend *blk,
- BlockCompletionFunc *cb, void *opaque)
-{
- return blk_aio_prwv(blk, 0, 0, NULL, blk_aio_flush_entry, 0, cb, opaque);
-}
-
-static void blk_aio_pdiscard_entry(void *opaque)
-{
- BlkAioEmAIOCB *acb = opaque;
- BlkRwCo *rwco = &acb->rwco;
-
- rwco->ret = blk_co_pdiscard(rwco->blk, rwco->offset, acb->bytes);
- blk_aio_complete(acb);
-}
-
-BlockAIOCB *blk_aio_pdiscard(BlockBackend *blk,
- int64_t offset, int bytes,
- BlockCompletionFunc *cb, void *opaque)
-{
- return blk_aio_prwv(blk, offset, bytes, NULL, blk_aio_pdiscard_entry, 0,
- cb, opaque);
-}
-
void blk_aio_cancel(BlockAIOCB *acb)
{
bdrv_aio_cancel(acb);
@@ -1586,6 +1554,37 @@ int blk_co_pdiscard(BlockBackend *blk, int64_t offset, int bytes)
return bdrv_co_pdiscard(blk->root, offset, bytes);
}
+static void blk_aio_pdiscard_entry(void *opaque)
+{
+ BlkAioEmAIOCB *acb = opaque;
+ BlkRwCo *rwco = &acb->rwco;
+
+ rwco->ret = blk_co_pdiscard(rwco->blk, rwco->offset, acb->bytes);
+ blk_aio_complete(acb);
+}
+
+BlockAIOCB *blk_aio_pdiscard(BlockBackend *blk,
+ int64_t offset, int bytes,
+ BlockCompletionFunc *cb, void *opaque)
+{
+ return blk_aio_prwv(blk, offset, bytes, NULL, blk_aio_pdiscard_entry, 0,
+ cb, opaque);
+}
+
+static void blk_pdiscard_entry(void *opaque)
+{
+ BlkRwCo *rwco = opaque;
+ QEMUIOVector *qiov = rwco->iobuf;
+
+ rwco->ret = blk_co_pdiscard(rwco->blk, rwco->offset, qiov->size);
+ aio_wait_kick();
+}
+
+int blk_pdiscard(BlockBackend *blk, int64_t offset, int bytes)
+{
+ return blk_prw(blk, offset, NULL, bytes, blk_pdiscard_entry, 0);
+}
+
int blk_co_flush(BlockBackend *blk)
{
blk_wait_while_drained(blk);
@@ -1597,6 +1596,21 @@ int blk_co_flush(BlockBackend *blk)
return bdrv_co_flush(blk_bs(blk));
}
+static void blk_aio_flush_entry(void *opaque)
+{
+ BlkAioEmAIOCB *acb = opaque;
+ BlkRwCo *rwco = &acb->rwco;
+
+ rwco->ret = blk_co_flush(rwco->blk);
+ blk_aio_complete(acb);
+}
+
+BlockAIOCB *blk_aio_flush(BlockBackend *blk,
+ BlockCompletionFunc *cb, void *opaque)
+{
+ return blk_aio_prwv(blk, 0, 0, NULL, blk_aio_flush_entry, 0, cb, opaque);
+}
+
static void blk_flush_entry(void *opaque)
{
BlkRwCo *rwco = opaque;
@@ -2083,20 +2097,6 @@ int blk_truncate(BlockBackend *blk, int64_t offset, bool exact,
return bdrv_truncate(blk->root, offset, exact, prealloc, errp);
}
-static void blk_pdiscard_entry(void *opaque)
-{
- BlkRwCo *rwco = opaque;
- QEMUIOVector *qiov = rwco->iobuf;
-
- rwco->ret = blk_co_pdiscard(rwco->blk, rwco->offset, qiov->size);
- aio_wait_kick();
-}
-
-int blk_pdiscard(BlockBackend *blk, int64_t offset, int bytes)
-{
- return blk_prw(blk, offset, NULL, bytes, blk_pdiscard_entry, 0);
-}
-
int blk_save_vmstate(BlockBackend *blk, const uint8_t *buf,
int64_t pos, int size)
{
--
1.8.3.1

130
SOURCES/kvm-block-backup-top-Don-t-acquire-context-while-droppin.patch Normal file
View File

@ -0,0 +1,130 @@
From aefff389c4d11bd69180db7177135c4645a9b1bd Mon Sep 17 00:00:00 2001
From: Sergio Lopez Pascual <slp@redhat.com>
Date: Fri, 7 Feb 2020 11:27:46 +0000
Subject: [PATCH 13/18] block/backup-top: Don't acquire context while dropping
top
RH-Author: Sergio Lopez Pascual <slp@redhat.com>
Message-id: <20200207112749.25073-7-slp@redhat.com>
Patchwork-id: 93759
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 6/9] block/backup-top: Don't acquire context while dropping top
Bugzilla: 1745606 1746217 1773517 1779036 1782111 1782175 1783965
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
All paths that lead to bdrv_backup_top_drop(), except for the call
from backup_clean(), imply that the BDS AioContext has already been
acquired, so doing it there too can potentially lead to QEMU hanging
on AIO_WAIT_WHILE().
An easy way to trigger this situation is by issuing a two actions
transaction, with a proper and a bogus blockdev-backup, so the second
one will trigger a rollback. This will trigger a hang with an stack
trace like this one:
#0 0x00007fb680c75016 in __GI_ppoll (fds=0x55e74580f7c0, nfds=1, timeout=<optimized out>,
timeout@entry=0x0, sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:39
#1 0x000055e743386e09 in ppoll (__ss=0x0, __timeout=0x0, __nfds=<optimized out>, __fds=<optimized out>)
at /usr/include/bits/poll2.h:77
#2 0x000055e743386e09 in qemu_poll_ns
(fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at util/qemu-timer.c:336
#3 0x000055e743388dc4 in aio_poll (ctx=0x55e7458925d0, blocking=blocking@entry=true)
at util/aio-posix.c:669
#4 0x000055e743305dea in bdrv_flush (bs=bs@entry=0x55e74593c0d0) at block/io.c:2878
#5 0x000055e7432be58e in bdrv_close (bs=0x55e74593c0d0) at block.c:4017
#6 0x000055e7432be58e in bdrv_delete (bs=<optimized out>) at block.c:4262
#7 0x000055e7432be58e in bdrv_unref (bs=bs@entry=0x55e74593c0d0) at block.c:5644
#8 0x000055e743316b9b in bdrv_backup_top_drop (bs=bs@entry=0x55e74593c0d0) at block/backup-top.c:273
#9 0x000055e74331461f in backup_job_create
(job_id=0x0, bs=bs@entry=0x55e7458d5820, target=target@entry=0x55e74589f640, speed=0, sync_mode=MIRROR_SYNC_MODE_FULL, sync_bitmap=sync_bitmap@entry=0x0, bitmap_mode=BITMAP_SYNC_MODE_ON_SUCCESS, compress=false, filter_node_name=0x0, on_source_error=BLOCKDEV_ON_ERROR_REPORT, on_target_error=BLOCKDEV_ON_ERROR_REPORT, creation_flags=0, cb=0x0, opaque=0x0, txn=0x0, errp=0x7ffddfd1efb0) at block/backup.c:478
#10 0x000055e74315bc52 in do_backup_common
(backup=backup@entry=0x55e746c066d0, bs=bs@entry=0x55e7458d5820, target_bs=target_bs@entry=0x55e74589f640, aio_context=aio_context@entry=0x55e7458a91e0, txn=txn@entry=0x0, errp=errp@entry=0x7ffddfd1efb0)
at blockdev.c:3580
#11 0x000055e74315c37c in do_blockdev_backup
(backup=backup@entry=0x55e746c066d0, txn=0x0, errp=errp@entry=0x7ffddfd1efb0)
at /usr/src/debug/qemu-kvm-4.2.0-2.module+el8.2.0+5135+ed3b2489.x86_64/./qapi/qapi-types-block-core.h:1492
#12 0x000055e74315c449 in blockdev_backup_prepare (common=0x55e746a8de90, errp=0x7ffddfd1f018)
at blockdev.c:1885
#13 0x000055e743160152 in qmp_transaction
(dev_list=<optimized out>, has_props=<optimized out>, props=0x55e7467fe2c0, errp=errp@entry=0x7ffddfd1f088) at blockdev.c:2340
#14 0x000055e743287ff5 in qmp_marshal_transaction
(args=<optimized out>, ret=<optimized out>, errp=0x7ffddfd1f0f8)
at qapi/qapi-commands-transaction.c:44
#15 0x000055e74333de6c in do_qmp_dispatch
(errp=0x7ffddfd1f0f0, allow_oob=<optimized out>, request=<optimized out>, cmds=0x55e743c28d60 <qmp_commands>) at qapi/qmp-dispatch.c:132
#16 0x000055e74333de6c in qmp_dispatch
(cmds=0x55e743c28d60 <qmp_commands>, request=<optimized out>, allow_oob=<optimized out>)
at qapi/qmp-dispatch.c:175
#17 0x000055e74325c061 in monitor_qmp_dispatch (mon=0x55e745908030, req=<optimized out>)
at monitor/qmp.c:145
#18 0x000055e74325c6fa in monitor_qmp_bh_dispatcher (data=<optimized out>) at monitor/qmp.c:234
#19 0x000055e743385866 in aio_bh_call (bh=0x55e745807ae0) at util/async.c:117
#20 0x000055e743385866 in aio_bh_poll (ctx=ctx@entry=0x55e7458067a0) at util/async.c:117
#21 0x000055e743388c54 in aio_dispatch (ctx=0x55e7458067a0) at util/aio-posix.c:459
#22 0x000055e743385742 in aio_ctx_dispatch
(source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at util/async.c:260
#23 0x00007fb68543e67d in g_main_dispatch (context=0x55e745893a40) at gmain.c:3176
#24 0x00007fb68543e67d in g_main_context_dispatch (context=context@entry=0x55e745893a40) at gmain.c:3829
#25 0x000055e743387d08 in glib_pollfds_poll () at util/main-loop.c:219
#26 0x000055e743387d08 in os_host_main_loop_wait (timeout=<optimized out>) at util/main-loop.c:242
#27 0x000055e743387d08 in main_loop_wait (nonblocking=<optimized out>) at util/main-loop.c:518
#28 0x000055e74316a3c1 in main_loop () at vl.c:1828
#29 0x000055e743016a72 in main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>)
at vl.c:4504
Fix this by not acquiring the AioContext there, and ensuring all paths
leading to it have it already acquired (backup_clean()).
RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=1782111
Signed-off-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 0abf2581717a19d9749d5c2ff8acd0ac203452c2)
Signed-off-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/backup-top.c | 5 -----
block/backup.c | 3 +++
2 files changed, 3 insertions(+), 5 deletions(-)
diff --git a/block/backup-top.c b/block/backup-top.c
index 818d3f2..b8d863f 100644
--- a/block/backup-top.c
+++ b/block/backup-top.c
@@ -255,9 +255,6 @@ append_failed:
void bdrv_backup_top_drop(BlockDriverState *bs)
{
BDRVBackupTopState *s = bs->opaque;
- AioContext *aio_context = bdrv_get_aio_context(bs);
-
- aio_context_acquire(aio_context);
bdrv_drained_begin(bs);
@@ -271,6 +268,4 @@ void bdrv_backup_top_drop(BlockDriverState *bs)
bdrv_drained_end(bs);
bdrv_unref(bs);
-
- aio_context_release(aio_context);
}
diff --git a/block/backup.c b/block/backup.c
index cf62b1a..1383e21 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -135,8 +135,11 @@ static void backup_abort(Job *job)
static void backup_clean(Job *job)
{
BackupBlockJob *s = container_of(job, BackupBlockJob, common.job);
+ AioContext *aio_context = bdrv_get_aio_context(s->backup_top);
+ aio_context_acquire(aio_context);
bdrv_backup_top_drop(s->backup_top);
+ aio_context_release(aio_context);
}
void backup_do_checkpoint(BlockJob *job, Error **errp)
--
1.8.3.1

114
SOURCES/kvm-block-bdrv_reopen-with-backing-file-in-different-Aio.patch Normal file
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@ -0,0 +1,114 @@
From 1e0582ad34e77a060e2067a35992979c9eae82c9 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Fri, 13 Mar 2020 12:34:31 +0000
Subject: [PATCH 11/20] block: bdrv_reopen() with backing file in different
AioContext
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200313123439.10548-6-kwolf@redhat.com>
Patchwork-id: 94282
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 05/13] block: bdrv_reopen() with backing file in different AioContext
Bugzilla: 1790482 1805143
RH-Acked-by: John Snow <jsnow@redhat.com>
RH-Acked-by: Daniel P. Berrange <berrange@redhat.com>
RH-Acked-by: Peter Krempa <pkrempa@redhat.com>
This patch allows bdrv_reopen() (and therefore the x-blockdev-reopen QMP
command) to attach a node as the new backing file even if the node is in
a different AioContext than the parent if one of both nodes can be moved
to the AioContext of the other node.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Tested-by: Peter Krempa <pkrempa@redhat.com>
Message-Id: <20200306141413.30705-3-kwolf@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 1de6b45fb5c1489b450df7d1a4c692bba9678ce6)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block.c | 32 ++++++++++++++++++++++++++------
tests/qemu-iotests/245 | 8 +++-----
2 files changed, 29 insertions(+), 11 deletions(-)
diff --git a/block.c b/block.c
index a744bb5..39e4647 100644
--- a/block.c
+++ b/block.c
@@ -3749,6 +3749,29 @@ static void bdrv_reopen_perm(BlockReopenQueue *q, BlockDriverState *bs,
*shared = cumulative_shared_perms;
}
+static bool bdrv_reopen_can_attach(BlockDriverState *parent,
+ BdrvChild *child,
+ BlockDriverState *new_child,
+ Error **errp)
+{
+ AioContext *parent_ctx = bdrv_get_aio_context(parent);
+ AioContext *child_ctx = bdrv_get_aio_context(new_child);
+ GSList *ignore;
+ bool ret;
+
+ ignore = g_slist_prepend(NULL, child);
+ ret = bdrv_can_set_aio_context(new_child, parent_ctx, &ignore, NULL);
+ g_slist_free(ignore);
+ if (ret) {
+ return ret;
+ }
+
+ ignore = g_slist_prepend(NULL, child);
+ ret = bdrv_can_set_aio_context(parent, child_ctx, &ignore, errp);
+ g_slist_free(ignore);
+ return ret;
+}
+
/*
* Take a BDRVReopenState and check if the value of 'backing' in the
* reopen_state->options QDict is valid or not.
@@ -3800,14 +3823,11 @@ static int bdrv_reopen_parse_backing(BDRVReopenState *reopen_state,
}
/*
- * TODO: before removing the x- prefix from x-blockdev-reopen we
- * should move the new backing file into the right AioContext
- * instead of returning an error.
+ * Check AioContext compatibility so that the bdrv_set_backing_hd() call in
+ * bdrv_reopen_commit() won't fail.
*/
if (new_backing_bs) {
- if (bdrv_get_aio_context(new_backing_bs) != bdrv_get_aio_context(bs)) {
- error_setg(errp, "Cannot use a new backing file "
- "with a different AioContext");
+ if (!bdrv_reopen_can_attach(bs, bs->backing, new_backing_bs, errp)) {
return -EINVAL;
}
}
diff --git a/tests/qemu-iotests/245 b/tests/qemu-iotests/245
index f69c2fa..919131d 100644
--- a/tests/qemu-iotests/245
+++ b/tests/qemu-iotests/245
@@ -1013,18 +1013,16 @@ class TestBlockdevReopen(iotests.QMPTestCase):
# neither of them can switch to the other AioContext
def test_iothreads_error(self):
self.run_test_iothreads('iothread0', 'iothread1',
- "Cannot use a new backing file with a different AioContext")
+ "Cannot change iothread of active block backend")
def test_iothreads_compatible_users(self):
self.run_test_iothreads('iothread0', 'iothread0')
def test_iothreads_switch_backing(self):
- self.run_test_iothreads('iothread0', None,
- "Cannot use a new backing file with a different AioContext")
+ self.run_test_iothreads('iothread0', None)
def test_iothreads_switch_overlay(self):
- self.run_test_iothreads(None, 'iothread0',
- "Cannot use a new backing file with a different AioContext")
+ self.run_test_iothreads(None, 'iothread0')
if __name__ == '__main__':
iotests.main(supported_fmts=["qcow2"],
--
1.8.3.1

55
SOURCES/kvm-block-curl-HTTP-header-field-names-are-case-insensit.patch Normal file
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@ -0,0 +1,55 @@
From 5e5ca17e1e09cfe9a780c556528bbde23c93fc4e Mon Sep 17 00:00:00 2001
From: Richard Jones <rjones@redhat.com>
Date: Thu, 28 May 2020 14:27:37 +0100
Subject: [PATCH 03/26] block/curl: HTTP header field names are case
insensitive
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Richard Jones <rjones@redhat.com>
Message-id: <20200528142737.17318-3-rjones@redhat.com>
Patchwork-id: 96895
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 2/2] block/curl: HTTP header field names are case insensitive
Bugzilla: 1841038
RH-Acked-by: Eric Blake <eblake@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
From: David Edmondson <david.edmondson@oracle.com>
RFC 7230 section 3.2 indicates that HTTP header field names are case
insensitive.
Signed-off-by: David Edmondson <david.edmondson@oracle.com>
Message-Id: <20200224101310.101169-3-david.edmondson@oracle.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
(cherry picked from commit 69032253c33ae1774233c63cedf36d32242a85fc)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/curl.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/block/curl.c b/block/curl.c
index f9ffb7f..6e32590 100644
--- a/block/curl.c
+++ b/block/curl.c
@@ -216,11 +216,12 @@ static size_t curl_header_cb(void *ptr, size_t size, size_t nmemb, void *opaque)
size_t realsize = size * nmemb;
const char *header = (char *)ptr;
const char *end = header + realsize;
- const char *accept_ranges = "Accept-Ranges:";
+ const char *accept_ranges = "accept-ranges:";
const char *bytes = "bytes";
if (realsize >= strlen(accept_ranges)
- && strncmp(header, accept_ranges, strlen(accept_ranges)) == 0) {
+ && g_ascii_strncasecmp(header, accept_ranges,
+ strlen(accept_ranges)) == 0) {
char *p = strchr(header, ':') + 1;
--
1.8.3.1

76
SOURCES/kvm-block-curl-HTTP-header-fields-allow-whitespace-aroun.patch Normal file
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@ -0,0 +1,76 @@
From e5ac775de83d3d22f13c74ab198780b8b579f684 Mon Sep 17 00:00:00 2001
From: Richard Jones <rjones@redhat.com>
Date: Thu, 28 May 2020 14:27:36 +0100
Subject: [PATCH 02/26] block/curl: HTTP header fields allow whitespace around
values
RH-Author: Richard Jones <rjones@redhat.com>
Message-id: <20200528142737.17318-2-rjones@redhat.com>
Patchwork-id: 96894
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 1/2] block/curl: HTTP header fields allow whitespace around values
Bugzilla: 1841038
RH-Acked-by: Eric Blake <eblake@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
From: David Edmondson <david.edmondson@oracle.com>
RFC 7230 section 3.2 indicates that whitespace is permitted between
the field name and field value and after the field value.
Signed-off-by: David Edmondson <david.edmondson@oracle.com>
Message-Id: <20200224101310.101169-2-david.edmondson@oracle.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
(cherry picked from commit 7788a319399f17476ff1dd43164c869e320820a2)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/curl.c | 31 +++++++++++++++++++++++++++----
1 file changed, 27 insertions(+), 4 deletions(-)
diff --git a/block/curl.c b/block/curl.c
index f862993..f9ffb7f 100644
--- a/block/curl.c
+++ b/block/curl.c
@@ -214,11 +214,34 @@ static size_t curl_header_cb(void *ptr, size_t size, size_t nmemb, void *opaque)
{
BDRVCURLState *s = opaque;
size_t realsize = size * nmemb;
- const char *accept_line = "Accept-Ranges: bytes";
+ const char *header = (char *)ptr;
+ const char *end = header + realsize;
+ const char *accept_ranges = "Accept-Ranges:";
+ const char *bytes = "bytes";
- if (realsize >= strlen(accept_line)
- && strncmp((char *)ptr, accept_line, strlen(accept_line)) == 0) {
- s->accept_range = true;
+ if (realsize >= strlen(accept_ranges)
+ && strncmp(header, accept_ranges, strlen(accept_ranges)) == 0) {
+
+ char *p = strchr(header, ':') + 1;
+
+ /* Skip whitespace between the header name and value. */
+ while (p < end && *p && g_ascii_isspace(*p)) {
+ p++;
+ }
+
+ if (end - p >= strlen(bytes)
+ && strncmp(p, bytes, strlen(bytes)) == 0) {
+
+ /* Check that there is nothing but whitespace after the value. */
+ p += strlen(bytes);
+ while (p < end && *p && g_ascii_isspace(*p)) {
+ p++;
+ }
+
+ if (p == end || !*p) {
+ s->accept_range = true;
+ }
+ }
}
return realsize;
--
1.8.3.1

99
SOURCES/kvm-block-introducing-bdrv_co_delete_file-interface.patch Normal file
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@ -0,0 +1,99 @@
From 9581770f48911cbe68cfa1a7fa125df2a0a27d02 Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <mlevitsk@redhat.com>
Date: Sun, 31 May 2020 16:40:33 +0100
Subject: [PATCH 5/7] block: introducing 'bdrv_co_delete_file' interface
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Maxim Levitsky <mlevitsk@redhat.com>
Message-id: <20200531164035.34188-2-mlevitsk@redhat.com>
Patchwork-id: 97057
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 1/3] block: introducing 'bdrv_co_delete_file' interface
Bugzilla: 1827630
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
RH-Acked-by: John Snow <jsnow@redhat.com>
RH-Acked-by: Eric Blake <eblake@redhat.com>
From: Daniel Henrique Barboza <danielhb413@gmail.com>
Adding to Block Drivers the capability of being able to clean up
its created files can be useful in certain situations. For the
LUKS driver, for instance, a failure in one of its authentication
steps can leave files in the host that weren't there before.
This patch adds the 'bdrv_co_delete_file' interface to block
drivers and add it to the 'file' driver in file-posix.c. The
implementation is given by 'raw_co_delete_file'.
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20200130213907.2830642-2-danielhb413@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 9bffae14df879255329473a7bd578643af2d4c9c)
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/file-posix.c | 23 +++++++++++++++++++++++
include/block/block_int.h | 4 ++++
2 files changed, 27 insertions(+)
diff --git a/block/file-posix.c b/block/file-posix.c
index dd18d40..1609598 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -2388,6 +2388,28 @@ static int coroutine_fn raw_co_create_opts(BlockDriver *drv,
return raw_co_create(&options, errp);
}
+static int coroutine_fn raw_co_delete_file(BlockDriverState *bs,
+ Error **errp)
+{
+ struct stat st;
+ int ret;
+
+ if (!(stat(bs->filename, &st) == 0) || !S_ISREG(st.st_mode)) {
+ error_setg_errno(errp, ENOENT, "%s is not a regular file",
+ bs->filename);
+ return -ENOENT;
+ }
+
+ ret = unlink(bs->filename);
+ if (ret < 0) {
+ ret = -errno;
+ error_setg_errno(errp, -ret, "Error when deleting file %s",
+ bs->filename);
+ }
+
+ return ret;
+}
+
/*
* Find allocation range in @bs around offset @start.
* May change underlying file descriptor's file offset.
@@ -3019,6 +3041,7 @@ BlockDriver bdrv_file = {
.bdrv_co_block_status = raw_co_block_status,
.bdrv_co_invalidate_cache = raw_co_invalidate_cache,
.bdrv_co_pwrite_zeroes = raw_co_pwrite_zeroes,
+ .bdrv_co_delete_file = raw_co_delete_file,
.bdrv_co_preadv = raw_co_preadv,
.bdrv_co_pwritev = raw_co_pwritev,
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 529f153..562dca1 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -316,6 +316,10 @@ struct BlockDriver {
*/
int coroutine_fn (*bdrv_co_flush)(BlockDriverState *bs);
+ /* Delete a created file. */
+ int coroutine_fn (*bdrv_co_delete_file)(BlockDriverState *bs,
+ Error **errp);
+
/*
* Flushes all data that was already written to the OS all the way down to
* the disk (for example file-posix.c calls fsync()).
--
1.8.3.1

78
SOURCES/kvm-block-nbd-Fix-hang-in-.bdrv_close.patch Normal file
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@ -0,0 +1,78 @@
From 4ef2c464a54b0b618d933641ac0a7012e629fed9 Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <mlevitsk@redhat.com>
Date: Wed, 11 Mar 2020 10:51:42 +0000
Subject: [PATCH 01/20] block/nbd: Fix hang in .bdrv_close()
RH-Author: Maxim Levitsky <mlevitsk@redhat.com>
Message-id: <20200311105147.13208-2-mlevitsk@redhat.com>
Patchwork-id: 94224
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 1/6] block/nbd: Fix hang in .bdrv_close()
Bugzilla: 1640894
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
RH-Acked-by: John Snow <jsnow@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
From: Max Reitz <mreitz@redhat.com>
When nbd_close() is called from a coroutine, the connection_co never
gets to run, and thus nbd_teardown_connection() hangs.
This is because aio_co_enter() only puts the connection_co into the main
coroutine's wake-up queue, so this main coroutine needs to yield and
wait for connection_co to terminate.
Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200122164532.178040-2-mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
(cherry picked from commit 78c81a3f108870d325b0a39d88711366afe6f703)
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/nbd.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/block/nbd.c b/block/nbd.c
index 5f18f78..a73f0d9 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -70,6 +70,7 @@ typedef struct BDRVNBDState {
CoMutex send_mutex;
CoQueue free_sema;
Coroutine *connection_co;
+ Coroutine *teardown_co;
QemuCoSleepState *connection_co_sleep_ns_state;
bool drained;
bool wait_drained_end;
@@ -203,7 +204,15 @@ static void nbd_teardown_connection(BlockDriverState *bs)
qemu_co_sleep_wake(s->connection_co_sleep_ns_state);
}
}
- BDRV_POLL_WHILE(bs, s->connection_co);
+ if (qemu_in_coroutine()) {
+ s->teardown_co = qemu_coroutine_self();
+ /* connection_co resumes us when it terminates */
+ qemu_coroutine_yield();
+ s->teardown_co = NULL;
+ } else {
+ BDRV_POLL_WHILE(bs, s->connection_co);
+ }
+ assert(!s->connection_co);
}
static bool nbd_client_connecting(BDRVNBDState *s)
@@ -395,6 +404,9 @@ static coroutine_fn void nbd_connection_entry(void *opaque)
s->ioc = NULL;
}
+ if (s->teardown_co) {
+ aio_co_wake(s->teardown_co);
+ }
aio_wait_kick();
}
--
1.8.3.1

328
SOURCES/kvm-block-pass-BlockDriver-reference-to-the-.bdrv_co_cre.patch Normal file
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@ -0,0 +1,328 @@
From 25c528b30f8774f33e957d14060805398da524d9 Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <mlevitsk@redhat.com>
Date: Thu, 26 Mar 2020 20:23:06 +0000
Subject: [PATCH 1/4] block: pass BlockDriver reference to the .bdrv_co_create
RH-Author: Maxim Levitsky <mlevitsk@redhat.com>
Message-id: <20200326202307.9264-2-mlevitsk@redhat.com>
Patchwork-id: 94447
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 1/2] block: pass BlockDriver reference to the .bdrv_co_create
Bugzilla: 1816007
RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
This will allow the reuse of a single generic .bdrv_co_create
implementation for several drivers.
No functional changes.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200326011218.29230-2-mlevitsk@redhat.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Max Reitz <mreitz@redhat.com>
(cherry picked from commit b92902dfeaafbceaf744ab7473f2d070284f6172)
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block.c | 3 ++-
block/crypto.c | 3 ++-
block/file-posix.c | 4 +++-
block/file-win32.c | 4 +++-
block/gluster.c | 3 ++-
block/nfs.c | 4 +++-
block/parallels.c | 3 ++-
block/qcow.c | 3 ++-
block/qcow2.c | 4 +++-
block/qed.c | 3 ++-
block/raw-format.c | 4 +++-
block/rbd.c | 3 ++-
block/sheepdog.c | 4 +++-
block/ssh.c | 4 +++-
block/vdi.c | 4 +++-
block/vhdx.c | 3 ++-
block/vmdk.c | 4 +++-
block/vpc.c | 6 ++++--
include/block/block_int.h | 3 ++-
19 files changed, 49 insertions(+), 20 deletions(-)
diff --git a/block.c b/block.c
index ec29b1e..f9a1c5b 100644
--- a/block.c
+++ b/block.c
@@ -482,7 +482,8 @@ static void coroutine_fn bdrv_create_co_entry(void *opaque)
CreateCo *cco = opaque;
assert(cco->drv);
- ret = cco->drv->bdrv_co_create_opts(cco->filename, cco->opts, &local_err);
+ ret = cco->drv->bdrv_co_create_opts(cco->drv,
+ cco->filename, cco->opts, &local_err);
error_propagate(&cco->err, local_err);
cco->ret = ret;
}
diff --git a/block/crypto.c b/block/crypto.c
index 2482383..970d463 100644
--- a/block/crypto.c
+++ b/block/crypto.c
@@ -539,7 +539,8 @@ fail:
return ret;
}
-static int coroutine_fn block_crypto_co_create_opts_luks(const char *filename,
+static int coroutine_fn block_crypto_co_create_opts_luks(BlockDriver *drv,
+ const char *filename,
QemuOpts *opts,
Error **errp)
{
diff --git a/block/file-posix.c b/block/file-posix.c
index fd29372..a2e0a74 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -2346,7 +2346,9 @@ out:
return result;
}
-static int coroutine_fn raw_co_create_opts(const char *filename, QemuOpts *opts,
+static int coroutine_fn raw_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
Error **errp)
{
BlockdevCreateOptions options;
diff --git a/block/file-win32.c b/block/file-win32.c
index 77e8ff7..1585983 100644
--- a/block/file-win32.c
+++ b/block/file-win32.c
@@ -588,7 +588,9 @@ static int raw_co_create(BlockdevCreateOptions *options, Error **errp)
return 0;
}
-static int coroutine_fn raw_co_create_opts(const char *filename, QemuOpts *opts,
+static int coroutine_fn raw_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
Error **errp)
{
BlockdevCreateOptions options;
diff --git a/block/gluster.c b/block/gluster.c
index 4fa4a77..0aa1f2c 100644
--- a/block/gluster.c
+++ b/block/gluster.c
@@ -1130,7 +1130,8 @@ out:
return ret;
}
-static int coroutine_fn qemu_gluster_co_create_opts(const char *filename,
+static int coroutine_fn qemu_gluster_co_create_opts(BlockDriver *drv,
+ const char *filename,
QemuOpts *opts,
Error **errp)
{
diff --git a/block/nfs.c b/block/nfs.c
index 9a6311e..cc2413d 100644
--- a/block/nfs.c
+++ b/block/nfs.c
@@ -662,7 +662,9 @@ out:
return ret;
}
-static int coroutine_fn nfs_file_co_create_opts(const char *url, QemuOpts *opts,
+static int coroutine_fn nfs_file_co_create_opts(BlockDriver *drv,
+ const char *url,
+ QemuOpts *opts,
Error **errp)
{
BlockdevCreateOptions *create_options;
diff --git a/block/parallels.c b/block/parallels.c
index 7a01997..6d4ed77 100644
--- a/block/parallels.c
+++ b/block/parallels.c
@@ -609,7 +609,8 @@ exit:
goto out;
}
-static int coroutine_fn parallels_co_create_opts(const char *filename,
+static int coroutine_fn parallels_co_create_opts(BlockDriver *drv,
+ const char *filename,
QemuOpts *opts,
Error **errp)
{
diff --git a/block/qcow.c b/block/qcow.c
index fce8989..8973e4e 100644
--- a/block/qcow.c
+++ b/block/qcow.c
@@ -934,7 +934,8 @@ exit:
return ret;
}
-static int coroutine_fn qcow_co_create_opts(const char *filename,
+static int coroutine_fn qcow_co_create_opts(BlockDriver *drv,
+ const char *filename,
QemuOpts *opts, Error **errp)
{
BlockdevCreateOptions *create_options = NULL;
diff --git a/block/qcow2.c b/block/qcow2.c
index 83b1fc0..71067c6 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -3558,7 +3558,9 @@ out:
return ret;
}
-static int coroutine_fn qcow2_co_create_opts(const char *filename, QemuOpts *opts,
+static int coroutine_fn qcow2_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
Error **errp)
{
BlockdevCreateOptions *create_options = NULL;
diff --git a/block/qed.c b/block/qed.c
index d8c4e5f..1af9b3c 100644
--- a/block/qed.c
+++ b/block/qed.c
@@ -720,7 +720,8 @@ out:
return ret;
}
-static int coroutine_fn bdrv_qed_co_create_opts(const char *filename,
+static int coroutine_fn bdrv_qed_co_create_opts(BlockDriver *drv,
+ const char *filename,
QemuOpts *opts,
Error **errp)
{
diff --git a/block/raw-format.c b/block/raw-format.c
index 3a76ec7..93b25e1 100644
--- a/block/raw-format.c
+++ b/block/raw-format.c
@@ -419,7 +419,9 @@ static int raw_has_zero_init_truncate(BlockDriverState *bs)
return bdrv_has_zero_init_truncate(bs->file->bs);
}
-static int coroutine_fn raw_co_create_opts(const char *filename, QemuOpts *opts,
+static int coroutine_fn raw_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
Error **errp)
{
return bdrv_create_file(filename, opts, errp);
diff --git a/block/rbd.c b/block/rbd.c
index 027cbcc..8847259 100644
--- a/block/rbd.c
+++ b/block/rbd.c
@@ -425,7 +425,8 @@ static int qemu_rbd_co_create(BlockdevCreateOptions *options, Error **errp)
return qemu_rbd_do_create(options, NULL, NULL, errp);
}
-static int coroutine_fn qemu_rbd_co_create_opts(const char *filename,
+static int coroutine_fn qemu_rbd_co_create_opts(BlockDriver *drv,
+ const char *filename,
QemuOpts *opts,
Error **errp)
{
diff --git a/block/sheepdog.c b/block/sheepdog.c
index cfa8433..a8a7e32 100644
--- a/block/sheepdog.c
+++ b/block/sheepdog.c
@@ -2157,7 +2157,9 @@ out:
return ret;
}
-static int coroutine_fn sd_co_create_opts(const char *filename, QemuOpts *opts,
+static int coroutine_fn sd_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
Error **errp)
{
BlockdevCreateOptions *create_options = NULL;
diff --git a/block/ssh.c b/block/ssh.c
index b4375cf..84e9282 100644
--- a/block/ssh.c
+++ b/block/ssh.c
@@ -963,7 +963,9 @@ fail:
return ret;
}
-static int coroutine_fn ssh_co_create_opts(const char *filename, QemuOpts *opts,
+static int coroutine_fn ssh_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
Error **errp)
{
BlockdevCreateOptions *create_options;
diff --git a/block/vdi.c b/block/vdi.c
index 0142da7..e1a11f2 100644
--- a/block/vdi.c
+++ b/block/vdi.c
@@ -896,7 +896,9 @@ static int coroutine_fn vdi_co_create(BlockdevCreateOptions *create_options,
return vdi_co_do_create(create_options, DEFAULT_CLUSTER_SIZE, errp);
}
-static int coroutine_fn vdi_co_create_opts(const char *filename, QemuOpts *opts,
+static int coroutine_fn vdi_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
Error **errp)
{
QDict *qdict = NULL;
diff --git a/block/vhdx.c b/block/vhdx.c
index f02d261..33e57cd 100644
--- a/block/vhdx.c
+++ b/block/vhdx.c
@@ -2046,7 +2046,8 @@ delete_and_exit:
return ret;
}
-static int coroutine_fn vhdx_co_create_opts(const char *filename,
+static int coroutine_fn vhdx_co_create_opts(BlockDriver *drv,
+ const char *filename,
QemuOpts *opts,
Error **errp)
{
diff --git a/block/vmdk.c b/block/vmdk.c
index 20e909d..eb726f2 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -2588,7 +2588,9 @@ exit:
return blk;
}
-static int coroutine_fn vmdk_co_create_opts(const char *filename, QemuOpts *opts,
+static int coroutine_fn vmdk_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
Error **errp)
{
Error *local_err = NULL;
diff --git a/block/vpc.c b/block/vpc.c
index a655502..6df75e2 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -1089,8 +1089,10 @@ out:
return ret;
}
-static int coroutine_fn vpc_co_create_opts(const char *filename,
- QemuOpts *opts, Error **errp)
+static int coroutine_fn vpc_co_create_opts(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
+ Error **errp)
{
BlockdevCreateOptions *create_options = NULL;
QDict *qdict;
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 96e327b..7ff81be 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -136,7 +136,8 @@ struct BlockDriver {
void (*bdrv_close)(BlockDriverState *bs);
int coroutine_fn (*bdrv_co_create)(BlockdevCreateOptions *opts,
Error **errp);
- int coroutine_fn (*bdrv_co_create_opts)(const char *filename,
+ int coroutine_fn (*bdrv_co_create_opts)(BlockDriver *drv,
+ const char *filename,
QemuOpts *opts,
Error **errp);
int (*bdrv_make_empty)(BlockDriverState *bs);
--
1.8.3.1

78
SOURCES/kvm-block-qcow2-Move-bitmap-reopen-into-bdrv_reopen_comm.patch Normal file
View File

@ -0,0 +1,78 @@
From ec5408763c49cd0b63ee324bdc38a429ed1adeee Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Fri, 13 Mar 2020 12:34:29 +0000
Subject: [PATCH 09/20] block/qcow2: Move bitmap reopen into
bdrv_reopen_commit_post
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200313123439.10548-4-kwolf@redhat.com>
Patchwork-id: 94280
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 03/13] block/qcow2: Move bitmap reopen into bdrv_reopen_commit_post
Bugzilla: 1790482 1805143
RH-Acked-by: John Snow <jsnow@redhat.com>
RH-Acked-by: Daniel P. Berrange <berrange@redhat.com>
RH-Acked-by: Peter Krempa <pkrempa@redhat.com>
From: Peter Krempa <pkrempa@redhat.com>
The bitmap code requires writing the 'file' child when the qcow2 driver
is reopened in read-write mode.
If the 'file' child is being reopened due to a permissions change, the
modification is commited yet when qcow2_reopen_commit is called. This
means that any attempt to write the 'file' child will end with EBADFD
as the original fd was already closed.
Moving bitmap reopening to the new callback which is called after
permission modifications are commited fixes this as the file descriptor
will be replaced with the correct one.
The above problem manifests itself when reopening 'qcow2' format layer
which uses a 'file-posix' file child which was opened with the
'auto-read-only' property set.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Message-Id: <db118dbafe1955afbc0a18d3dd220931074ce349.1582893284.git.pkrempa@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 65eb7c85a3e62529e2bad782e94d5a7b11dd5a92)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/qcow2.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/block/qcow2.c b/block/qcow2.c
index 7c18721..83b1fc0 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -1881,6 +1881,11 @@ fail:
static void qcow2_reopen_commit(BDRVReopenState *state)
{
qcow2_update_options_commit(state->bs, state->opaque);
+ g_free(state->opaque);
+}
+
+static void qcow2_reopen_commit_post(BDRVReopenState *state)
+{
if (state->flags & BDRV_O_RDWR) {
Error *local_err = NULL;
@@ -1895,7 +1900,6 @@ static void qcow2_reopen_commit(BDRVReopenState *state)
bdrv_get_node_name(state->bs));
}
}
- g_free(state->opaque);
}
static void qcow2_reopen_abort(BDRVReopenState *state)
@@ -5492,6 +5496,7 @@ BlockDriver bdrv_qcow2 = {
.bdrv_close = qcow2_close,
.bdrv_reopen_prepare = qcow2_reopen_prepare,
.bdrv_reopen_commit = qcow2_reopen_commit,
+ .bdrv_reopen_commit_post = qcow2_reopen_commit_post,
.bdrv_reopen_abort = qcow2_reopen_abort,
.bdrv_join_options = qcow2_join_options,
.bdrv_child_perm = bdrv_format_default_perms,
--
1.8.3.1

296
SOURCES/kvm-block-trickle-down-the-fallback-image-creation-funct.patch Normal file
View File

@ -0,0 +1,296 @@
From a1f7b929ae1fe6fa424c520c3a5eb497333b0fd9 Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <mlevitsk@redhat.com>
Date: Thu, 26 Mar 2020 20:23:07 +0000
Subject: [PATCH 2/4] block: trickle down the fallback image creation function
use to the block drivers
RH-Author: Maxim Levitsky <mlevitsk@redhat.com>
Message-id: <20200326202307.9264-3-mlevitsk@redhat.com>
Patchwork-id: 94446
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 2/2] block: trickle down the fallback image creation function use to the block drivers
Bugzilla: 1816007
RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
Instead of checking the .bdrv_co_create_opts to see if we need the
fallback, just implement the .bdrv_co_create_opts in the drivers that
need it.
This way we don't break various places that need to know if the
underlying protocol/format really supports image creation, and this way
we still allow some drivers to not support image creation.
Fixes: fd17146cd93d1704cd96d7c2757b325fc7aac6fd
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1816007
Note that technically this driver reverts the image creation fallback
for the vxhs driver since I don't have a means to test it, and IMHO it
is better to leave it not supported as it was prior to generic image
creation patches.
Also drop iscsi_create_opts which was left accidentally.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-Id: <20200326011218.29230-3-mlevitsk@redhat.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
[mreitz: Fixed alignment, and moved bdrv_co_create_opts_simple() and
bdrv_create_opts_simple from block.h into block_int.h]
Signed-off-by: Max Reitz <mreitz@redhat.com>
(cherry picked from commit 5a5e7f8cd86b7ced0732b1b6e28c82baa65b09c9)
Contextual conflicts in block.c and include/block/block_int.h
(conflict in block.c by default shows as functional but
with --diff-algorithm=patience it becomes a contextual conflict)
...
001/2:[----] [--] 'block: pass BlockDriver reference to the .bdrv_co_create'
002/2:[0014] [FC] 'block: trickle down the fallback image creation function use to the block drivers'
...
002/2: 'meld <(git show 5a5e7f8^\!) <(git show 6d3bca5^\!)'
So now running:
meld <(git show 5a5e7f8^\! --diff-algorithm=patience) <(git show 6d3bca5^\! --diff-algorithm=patience)
shows no contextual conflicts
It is mostly due to missing commit f6dc1c31d3801dcbdf0c56574f9ff4f05180810c
Thanks to Max Reitz for helping me with this.
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block.c | 35 ++++++++++++++++++++---------------
block/file-posix.c | 7 ++++++-
block/iscsi.c | 16 ++++------------
block/nbd.c | 6 ++++++
block/nvme.c | 3 +++
include/block/block.h | 1 +
include/block/block_int.h | 11 +++++++++++
7 files changed, 51 insertions(+), 28 deletions(-)
diff --git a/block.c b/block.c
index f9a1c5b..ba3b40d7 100644
--- a/block.c
+++ b/block.c
@@ -597,8 +597,15 @@ static int create_file_fallback_zero_first_sector(BlockBackend *blk,
return 0;
}
-static int bdrv_create_file_fallback(const char *filename, BlockDriver *drv,
- QemuOpts *opts, Error **errp)
+/**
+ * Simple implementation of bdrv_co_create_opts for protocol drivers
+ * which only support creation via opening a file
+ * (usually existing raw storage device)
+ */
+int coroutine_fn bdrv_co_create_opts_simple(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
+ Error **errp)
{
BlockBackend *blk;
QDict *options;
@@ -662,11 +669,7 @@ int bdrv_create_file(const char *filename, QemuOpts *opts, Error **errp)
return -ENOENT;
}
- if (drv->bdrv_co_create_opts) {
- return bdrv_create(drv, filename, opts, errp);
- } else {
- return bdrv_create_file_fallback(filename, drv, opts, errp);
- }
+ return bdrv_create(drv, filename, opts, errp);
}
/**
@@ -1543,9 +1546,9 @@ QemuOptsList bdrv_runtime_opts = {
},
};
-static QemuOptsList fallback_create_opts = {
- .name = "fallback-create-opts",
- .head = QTAILQ_HEAD_INITIALIZER(fallback_create_opts.head),
+QemuOptsList bdrv_create_opts_simple = {
+ .name = "simple-create-opts",
+ .head = QTAILQ_HEAD_INITIALIZER(bdrv_create_opts_simple.head),
.desc = {
{
.name = BLOCK_OPT_SIZE,
@@ -5910,13 +5913,15 @@ void bdrv_img_create(const char *filename, const char *fmt,
return;
}
- create_opts = qemu_opts_append(create_opts, drv->create_opts);
- if (proto_drv->create_opts) {
- create_opts = qemu_opts_append(create_opts, proto_drv->create_opts);
- } else {
- create_opts = qemu_opts_append(create_opts, &fallback_create_opts);
+ if (!proto_drv->create_opts) {
+ error_setg(errp, "Protocol driver '%s' does not support image creation",
+ proto_drv->format_name);
+ return;
}
+ create_opts = qemu_opts_append(create_opts, drv->create_opts);
+ create_opts = qemu_opts_append(create_opts, proto_drv->create_opts);
+
/* Create parameter list with default values */
opts = qemu_opts_create(create_opts, NULL, 0, &error_abort);
qemu_opt_set_number(opts, BLOCK_OPT_SIZE, img_size, &error_abort);
diff --git a/block/file-posix.c b/block/file-posix.c
index a2e0a74..dd18d40 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -3432,6 +3432,8 @@ static BlockDriver bdrv_host_device = {
.bdrv_reopen_prepare = raw_reopen_prepare,
.bdrv_reopen_commit = raw_reopen_commit,
.bdrv_reopen_abort = raw_reopen_abort,
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
.mutable_opts = mutable_opts,
.bdrv_co_invalidate_cache = raw_co_invalidate_cache,
.bdrv_co_pwrite_zeroes = hdev_co_pwrite_zeroes,
@@ -3558,10 +3560,11 @@ static BlockDriver bdrv_host_cdrom = {
.bdrv_reopen_prepare = raw_reopen_prepare,
.bdrv_reopen_commit = raw_reopen_commit,
.bdrv_reopen_abort = raw_reopen_abort,
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
.mutable_opts = mutable_opts,
.bdrv_co_invalidate_cache = raw_co_invalidate_cache,
-
.bdrv_co_preadv = raw_co_preadv,
.bdrv_co_pwritev = raw_co_pwritev,
.bdrv_co_flush_to_disk = raw_co_flush_to_disk,
@@ -3690,6 +3693,8 @@ static BlockDriver bdrv_host_cdrom = {
.bdrv_reopen_prepare = raw_reopen_prepare,
.bdrv_reopen_commit = raw_reopen_commit,
.bdrv_reopen_abort = raw_reopen_abort,
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
.mutable_opts = mutable_opts,
.bdrv_co_preadv = raw_co_preadv,
diff --git a/block/iscsi.c b/block/iscsi.c
index b45da65..16b0716 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -2399,18 +2399,6 @@ out_unlock:
return r;
}
-static QemuOptsList iscsi_create_opts = {
- .name = "iscsi-create-opts",
- .head = QTAILQ_HEAD_INITIALIZER(iscsi_create_opts.head),
- .desc = {
- {
- .name = BLOCK_OPT_SIZE,
- .type = QEMU_OPT_SIZE,
- .help = "Virtual disk size"
- },
- { /* end of list */ }
- }
-};
static const char *const iscsi_strong_runtime_opts[] = {
"transport",
@@ -2434,6 +2422,8 @@ static BlockDriver bdrv_iscsi = {
.bdrv_parse_filename = iscsi_parse_filename,
.bdrv_file_open = iscsi_open,
.bdrv_close = iscsi_close,
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
.bdrv_reopen_prepare = iscsi_reopen_prepare,
.bdrv_reopen_commit = iscsi_reopen_commit,
.bdrv_co_invalidate_cache = iscsi_co_invalidate_cache,
@@ -2471,6 +2461,8 @@ static BlockDriver bdrv_iser = {
.bdrv_parse_filename = iscsi_parse_filename,
.bdrv_file_open = iscsi_open,
.bdrv_close = iscsi_close,
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
.bdrv_reopen_prepare = iscsi_reopen_prepare,
.bdrv_reopen_commit = iscsi_reopen_commit,
.bdrv_co_invalidate_cache = iscsi_co_invalidate_cache,
diff --git a/block/nbd.c b/block/nbd.c
index a73f0d9..927915d 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -2030,6 +2030,8 @@ static BlockDriver bdrv_nbd = {
.protocol_name = "nbd",
.instance_size = sizeof(BDRVNBDState),
.bdrv_parse_filename = nbd_parse_filename,
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
.bdrv_file_open = nbd_open,
.bdrv_reopen_prepare = nbd_client_reopen_prepare,
.bdrv_co_preadv = nbd_client_co_preadv,
@@ -2055,6 +2057,8 @@ static BlockDriver bdrv_nbd_tcp = {
.protocol_name = "nbd+tcp",
.instance_size = sizeof(BDRVNBDState),
.bdrv_parse_filename = nbd_parse_filename,
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
.bdrv_file_open = nbd_open,
.bdrv_reopen_prepare = nbd_client_reopen_prepare,
.bdrv_co_preadv = nbd_client_co_preadv,
@@ -2080,6 +2084,8 @@ static BlockDriver bdrv_nbd_unix = {
.protocol_name = "nbd+unix",
.instance_size = sizeof(BDRVNBDState),
.bdrv_parse_filename = nbd_parse_filename,
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
.bdrv_file_open = nbd_open,
.bdrv_reopen_prepare = nbd_client_reopen_prepare,
.bdrv_co_preadv = nbd_client_co_preadv,
diff --git a/block/nvme.c b/block/nvme.c
index d41c4bd..7b7c0cc 100644
--- a/block/nvme.c
+++ b/block/nvme.c
@@ -1333,6 +1333,9 @@ static BlockDriver bdrv_nvme = {
.protocol_name = "nvme",
.instance_size = sizeof(BDRVNVMeState),
+ .bdrv_co_create_opts = bdrv_co_create_opts_simple,
+ .create_opts = &bdrv_create_opts_simple,
+
.bdrv_parse_filename = nvme_parse_filename,
.bdrv_file_open = nvme_file_open,
.bdrv_close = nvme_close,
diff --git a/include/block/block.h b/include/block/block.h
index 1df9848..92685d2 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -293,6 +293,7 @@ BlockDriver *bdrv_find_format(const char *format_name);
int bdrv_create(BlockDriver *drv, const char* filename,
QemuOpts *opts, Error **errp);
int bdrv_create_file(const char *filename, QemuOpts *opts, Error **errp);
+
BlockDriverState *bdrv_new(void);
void bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top,
Error **errp);
diff --git a/include/block/block_int.h b/include/block/block_int.h
index 7ff81be..529f153 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -1325,4 +1325,15 @@ int coroutine_fn bdrv_co_copy_range_to(BdrvChild *src, uint64_t src_offset,
int refresh_total_sectors(BlockDriverState *bs, int64_t hint);
+/**
+ * Simple implementation of bdrv_co_create_opts for protocol drivers
+ * which only support creation via opening a file
+ * (usually existing raw storage device)
+ */
+int coroutine_fn bdrv_co_create_opts_simple(BlockDriver *drv,
+ const char *filename,
+ QemuOpts *opts,
+ Error **errp);
+extern QemuOptsList bdrv_create_opts_simple;
+
#endif /* BLOCK_INT_H */
--
1.8.3.1

94
SOURCES/kvm-block-truncate-Don-t-make-backing-file-data-visible.patch Normal file
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@ -0,0 +1,94 @@
From d84b9b93755ece6618ed98fa84386beeb1a0e40b Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Mon, 8 Jun 2020 15:01:36 +0100
Subject: [PATCH 08/17] block: truncate: Don't make backing file data visible
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200608150140.38218-8-kwolf@redhat.com>
Patchwork-id: 97454
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 07/11] block: truncate: Don't make backing file data visible
Bugzilla: 1780574
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
RH-Acked-by: Eric Blake <eblake@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
When extending the size of an image that has a backing file larger than
its old size, make sure that the backing file data doesn't become
visible in the guest, but the added area is properly zeroed out.
Consider the following scenario where the overlay is shorter than its
backing file:
base.qcow2: AAAAAAAA
overlay.qcow2: BBBB
When resizing (extending) overlay.qcow2, the new blocks should not stay
unallocated and make the additional As from base.qcow2 visible like
before this patch, but zeros should be read.
A similar case happens with the various variants of a commit job when an
intermediate file is short (- for unallocated):
base.qcow2: A-A-AAAA
mid.qcow2: BB-B
top.qcow2: C--C--C-
After commit top.qcow2 to mid.qcow2, the following happens:
mid.qcow2: CB-C00C0 (correct result)
mid.qcow2: CB-C--C- (before this fix)
Without the fix, blocks that previously read as zeros on top.qcow2
suddenly turn into A.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200424125448.63318-8-kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 955c7d6687fefcd903900a1e597fcbc896c661cd)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/io.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/block/io.c b/block/io.c
index 3235ce5..6c70b56 100644
--- a/block/io.c
+++ b/block/io.c
@@ -3370,6 +3370,31 @@ int coroutine_fn bdrv_co_truncate(BdrvChild *child, int64_t offset, bool exact,
goto out;
}
+ /*
+ * If the image has a backing file that is large enough that it would
+ * provide data for the new area, we cannot leave it unallocated because
+ * then the backing file content would become visible. Instead, zero-fill
+ * the new area.
+ *
+ * Note that if the image has a backing file, but was opened without the
+ * backing file, taking care of keeping things consistent with that backing
+ * file is the user's responsibility.
+ */
+ if (new_bytes && bs->backing) {
+ int64_t backing_len;
+
+ backing_len = bdrv_getlength(backing_bs(bs));
+ if (backing_len < 0) {
+ ret = backing_len;
+ error_setg_errno(errp, -ret, "Could not get backing file size");
+ goto out;
+ }
+
+ if (backing_len > old_size) {
+ flags |= BDRV_REQ_ZERO_WRITE;
+ }
+ }
+
if (drv->bdrv_co_truncate) {
if (flags & ~bs->supported_truncate_flags) {
error_setg(errp, "Block driver does not support requested flags");
--
1.8.3.1

92
SOURCES/kvm-block.c-adding-bdrv_co_delete_file.patch Normal file
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@ -0,0 +1,92 @@
From 23b92512d7f11b3a38cf24a5c2fe7848f1e550e8 Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <mlevitsk@redhat.com>
Date: Sun, 31 May 2020 16:40:34 +0100
Subject: [PATCH 6/7] block.c: adding bdrv_co_delete_file
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Maxim Levitsky <mlevitsk@redhat.com>
Message-id: <20200531164035.34188-3-mlevitsk@redhat.com>
Patchwork-id: 97058
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 2/3] block.c: adding bdrv_co_delete_file
Bugzilla: 1827630
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
RH-Acked-by: John Snow <jsnow@redhat.com>
RH-Acked-by: Eric Blake <eblake@redhat.com>
From: Daniel Henrique Barboza <danielhb413@gmail.com>
Using the new 'bdrv_co_delete_file' interface, a pure co_routine function
'bdrv_co_delete_file' inside block.c can can be used in a way similar of
the existing bdrv_create_file to to clean up a created file.
We're creating a pure co_routine because the only caller of
'bdrv_co_delete_file' will be already in co_routine context, thus there
is no need to add all the machinery to check for qemu_in_coroutine() and
create a separated co_routine to do the job.
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20200130213907.2830642-3-danielhb413@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit e1d7f8bb1ec0c6911dcea81641ce6139dbded02d)
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block.c | 26 ++++++++++++++++++++++++++
include/block/block.h | 1 +
2 files changed, 27 insertions(+)
diff --git a/block.c b/block.c
index ba3b40d7..d6a05da 100644
--- a/block.c
+++ b/block.c
@@ -672,6 +672,32 @@ int bdrv_create_file(const char *filename, QemuOpts *opts, Error **errp)
return bdrv_create(drv, filename, opts, errp);
}
+int coroutine_fn bdrv_co_delete_file(BlockDriverState *bs, Error **errp)
+{
+ Error *local_err = NULL;
+ int ret;
+
+ assert(bs != NULL);
+
+ if (!bs->drv) {
+ error_setg(errp, "Block node '%s' is not opened", bs->filename);
+ return -ENOMEDIUM;
+ }
+
+ if (!bs->drv->bdrv_co_delete_file) {
+ error_setg(errp, "Driver '%s' does not support image deletion",
+ bs->drv->format_name);
+ return -ENOTSUP;
+ }
+
+ ret = bs->drv->bdrv_co_delete_file(bs, &local_err);
+ if (ret < 0) {
+ error_propagate(errp, local_err);
+ }
+
+ return ret;
+}
+
/**
* Try to get @bs's logical and physical block size.
* On success, store them in @bsz struct and return 0.
diff --git a/include/block/block.h b/include/block/block.h
index 92685d2..b2a3074 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -373,6 +373,7 @@ bool bdrv_is_backing_chain_frozen(BlockDriverState *bs, BlockDriverState *base,
int bdrv_freeze_backing_chain(BlockDriverState *bs, BlockDriverState *base,
Error **errp);
void bdrv_unfreeze_backing_chain(BlockDriverState *bs, BlockDriverState *base);
+int coroutine_fn bdrv_co_delete_file(BlockDriverState *bs, Error **errp);
typedef struct BdrvCheckResult {
--
1.8.3.1

176
SOURCES/kvm-blockdev-Acquire-AioContext-on-dirty-bitmap-function.patch Normal file
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@ -0,0 +1,176 @@
From dc2654f2319ad6c379e0ba10be143726c6f0e9e0 Mon Sep 17 00:00:00 2001
From: Sergio Lopez Pascual <slp@redhat.com>
Date: Fri, 7 Feb 2020 11:27:47 +0000
Subject: [PATCH 14/18] blockdev: Acquire AioContext on dirty bitmap functions
RH-Author: Sergio Lopez Pascual <slp@redhat.com>
Message-id: <20200207112749.25073-8-slp@redhat.com>
Patchwork-id: 93760
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 7/9] blockdev: Acquire AioContext on dirty bitmap functions
Bugzilla: 1745606 1746217 1773517 1779036 1782111 1782175 1783965
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Dirty map addition and removal functions are not acquiring to BDS
AioContext, while they may call to code that expects it to be
acquired.
This may trigger a crash with a stack trace like this one:
#0 0x00007f0ef146370f in __GI_raise (sig=sig@entry=6)
at ../sysdeps/unix/sysv/linux/raise.c:50
#1 0x00007f0ef144db25 in __GI_abort () at abort.c:79
#2 0x0000565022294dce in error_exit
(err=<optimized out>, msg=msg@entry=0x56502243a730 <__func__.16350> "qemu_mutex_unlock_impl") at util/qemu-thread-posix.c:36
#3 0x00005650222950ba in qemu_mutex_unlock_impl
(mutex=mutex@entry=0x5650244b0240, file=file@entry=0x565022439adf "util/async.c", line=line@entry=526) at util/qemu-thread-posix.c:108
#4 0x0000565022290029 in aio_context_release
(ctx=ctx@entry=0x5650244b01e0) at util/async.c:526
#5 0x000056502221cd08 in bdrv_can_store_new_dirty_bitmap
(bs=bs@entry=0x5650244dc820, name=name@entry=0x56502481d360 "bitmap1", granularity=granularity@entry=65536, errp=errp@entry=0x7fff22831718)
at block/dirty-bitmap.c:542
#6 0x000056502206ae53 in qmp_block_dirty_bitmap_add
(errp=0x7fff22831718, disabled=false, has_disabled=<optimized out>, persistent=<optimized out>, has_persistent=true, granularity=65536, has_granularity=<optimized out>, name=0x56502481d360 "bitmap1", node=<optimized out>) at blockdev.c:2894
#7 0x000056502206ae53 in qmp_block_dirty_bitmap_add
(node=<optimized out>, name=0x56502481d360 "bitmap1", has_granularity=<optimized out>, granularity=<optimized out>, has_persistent=true, persistent=<optimized out>, has_disabled=false, disabled=false, errp=0x7fff22831718) at blockdev.c:2856
#8 0x00005650221847a3 in qmp_marshal_block_dirty_bitmap_add
(args=<optimized out>, ret=<optimized out>, errp=0x7fff22831798)
at qapi/qapi-commands-block-core.c:651
#9 0x0000565022247e6c in do_qmp_dispatch
(errp=0x7fff22831790, allow_oob=<optimized out>, request=<optimized out>, cmds=0x565022b32d60 <qmp_commands>) at qapi/qmp-dispatch.c:132
#10 0x0000565022247e6c in qmp_dispatch
(cmds=0x565022b32d60 <qmp_commands>, request=<optimized out>, allow_oob=<optimized out>) at qapi/qmp-dispatch.c:175
#11 0x0000565022166061 in monitor_qmp_dispatch
(mon=0x56502450faa0, req=<optimized out>) at monitor/qmp.c:145
#12 0x00005650221666fa in monitor_qmp_bh_dispatcher
(data=<optimized out>) at monitor/qmp.c:234
#13 0x000056502228f866 in aio_bh_call (bh=0x56502440eae0)
at util/async.c:117
#14 0x000056502228f866 in aio_bh_poll (ctx=ctx@entry=0x56502440d7a0)
at util/async.c:117
#15 0x0000565022292c54 in aio_dispatch (ctx=0x56502440d7a0)
at util/aio-posix.c:459
#16 0x000056502228f742 in aio_ctx_dispatch
(source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at util/async.c:260
#17 0x00007f0ef5ce667d in g_main_dispatch (context=0x56502449aa40)
at gmain.c:3176
#18 0x00007f0ef5ce667d in g_main_context_dispatch
(context=context@entry=0x56502449aa40) at gmain.c:3829
#19 0x0000565022291d08 in glib_pollfds_poll () at util/main-loop.c:219
#20 0x0000565022291d08 in os_host_main_loop_wait
(timeout=<optimized out>) at util/main-loop.c:242
#21 0x0000565022291d08 in main_loop_wait (nonblocking=<optimized out>)
at util/main-loop.c:518
#22 0x00005650220743c1 in main_loop () at vl.c:1828
#23 0x0000565021f20a72 in main
(argc=<optimized out>, argv=<optimized out>, envp=<optimized out>)
at vl.c:4504
Fix this by acquiring the AioContext at qmp_block_dirty_bitmap_add()
and qmp_block_dirty_bitmap_add().
RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=1782175
Signed-off-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 91005a495e228ebd7e5e173cd18f952450eef82d)
Signed-off-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
blockdev.c | 22 ++++++++++++++++++----
1 file changed, 18 insertions(+), 4 deletions(-)
diff --git a/blockdev.c b/blockdev.c
index 1dacbc2..d4ef6cd 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -2984,6 +2984,7 @@ void qmp_block_dirty_bitmap_add(const char *node, const char *name,
{
BlockDriverState *bs;
BdrvDirtyBitmap *bitmap;
+ AioContext *aio_context;
if (!name || name[0] == '\0') {
error_setg(errp, "Bitmap name cannot be empty");
@@ -2995,11 +2996,14 @@ void qmp_block_dirty_bitmap_add(const char *node, const char *name,
return;
}
+ aio_context = bdrv_get_aio_context(bs);
+ aio_context_acquire(aio_context);
+
if (has_granularity) {
if (granularity < 512 || !is_power_of_2(granularity)) {
error_setg(errp, "Granularity must be power of 2 "
"and at least 512");
- return;
+ goto out;
}
} else {
/* Default to cluster size, if available: */
@@ -3017,12 +3021,12 @@ void qmp_block_dirty_bitmap_add(const char *node, const char *name,
if (persistent &&
!bdrv_can_store_new_dirty_bitmap(bs, name, granularity, errp))
{
- return;
+ goto out;
}
bitmap = bdrv_create_dirty_bitmap(bs, granularity, name, errp);
if (bitmap == NULL) {
- return;
+ goto out;
}
if (disabled) {
@@ -3030,6 +3034,9 @@ void qmp_block_dirty_bitmap_add(const char *node, const char *name,
}
bdrv_dirty_bitmap_set_persistence(bitmap, persistent);
+
+out:
+ aio_context_release(aio_context);
}
static BdrvDirtyBitmap *do_block_dirty_bitmap_remove(
@@ -3038,21 +3045,27 @@ static BdrvDirtyBitmap *do_block_dirty_bitmap_remove(
{
BlockDriverState *bs;
BdrvDirtyBitmap *bitmap;
+ AioContext *aio_context;
bitmap = block_dirty_bitmap_lookup(node, name, &bs, errp);
if (!bitmap || !bs) {
return NULL;
}
+ aio_context = bdrv_get_aio_context(bs);
+ aio_context_acquire(aio_context);
+
if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_BUSY | BDRV_BITMAP_RO,
errp)) {
+ aio_context_release(aio_context);
return NULL;
}
if (bdrv_dirty_bitmap_get_persistence(bitmap) &&
bdrv_remove_persistent_dirty_bitmap(bs, name, errp) < 0)
{
- return NULL;
+ aio_context_release(aio_context);
+ return NULL;
}
if (release) {
@@ -3063,6 +3076,7 @@ static BdrvDirtyBitmap *do_block_dirty_bitmap_remove(
*bitmap_bs = bs;
}
+ aio_context_release(aio_context);
return release ? NULL : bitmap;
}
--
1.8.3.1

179
SOURCES/kvm-blockdev-Promote-several-bitmap-functions-to-non-sta.patch Normal file
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@ -0,0 +1,179 @@
From 0c8ba0a96a7d0cbf371f1a5fbee543e8b2cb2595 Mon Sep 17 00:00:00 2001
From: Eric Blake <eblake@redhat.com>
Date: Tue, 2 Jun 2020 02:34:13 +0100
Subject: [PATCH 08/26] blockdev: Promote several bitmap functions to
non-static
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Eric Blake <eblake@redhat.com>
Message-id: <20200602023420.2133649-6-eblake@redhat.com>
Patchwork-id: 97077
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 05/12] blockdev: Promote several bitmap functions to non-static
Bugzilla: 1779893 1779904
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
The next patch will split blockdev.c, which will require accessing
some previously-static functions from more than one .c file. But part
of promoting a function to public is picking a naming scheme that does
not reek of exposing too many internals (two of the three functions
were named starting with 'do_'). To make future code motion easier,
perform the function rename and non-static promotion into its own
patch.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200513011648.166876-5-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
(cherry picked from commit c6996cf9a6c759c29919642be9a73ac64b38301b)
Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
blockdev.c | 47 +++++++++++++++++++----------------------------
include/block/block_int.h | 12 ++++++++++++
2 files changed, 31 insertions(+), 28 deletions(-)
diff --git a/blockdev.c b/blockdev.c
index 86eb115..3958058 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1262,10 +1262,10 @@ out_aio_context:
*
* @return: A bitmap object on success, or NULL on failure.
*/
-static BdrvDirtyBitmap *block_dirty_bitmap_lookup(const char *node,
- const char *name,
- BlockDriverState **pbs,
- Error **errp)
+BdrvDirtyBitmap *block_dirty_bitmap_lookup(const char *node,
+ const char *name,
+ BlockDriverState **pbs,
+ Error **errp)
{
BlockDriverState *bs;
BdrvDirtyBitmap *bitmap;
@@ -2241,11 +2241,6 @@ static void block_dirty_bitmap_disable_abort(BlkActionState *common)
}
}
-static BdrvDirtyBitmap *do_block_dirty_bitmap_merge(
- const char *node, const char *target,
- BlockDirtyBitmapMergeSourceList *bitmaps,
- HBitmap **backup, Error **errp);
-
static void block_dirty_bitmap_merge_prepare(BlkActionState *common,
Error **errp)
{
@@ -2259,15 +2254,11 @@ static void block_dirty_bitmap_merge_prepare(BlkActionState *common,
action = common->action->u.block_dirty_bitmap_merge.data;
- state->bitmap = do_block_dirty_bitmap_merge(action->node, action->target,
- action->bitmaps, &state->backup,
- errp);
+ state->bitmap = block_dirty_bitmap_merge(action->node, action->target,
+ action->bitmaps, &state->backup,
+ errp);
}
-static BdrvDirtyBitmap *do_block_dirty_bitmap_remove(
- const char *node, const char *name, bool release,
- BlockDriverState **bitmap_bs, Error **errp);
-
static void block_dirty_bitmap_remove_prepare(BlkActionState *common,
Error **errp)
{
@@ -2281,8 +2272,8 @@ static void block_dirty_bitmap_remove_prepare(BlkActionState *common,
action = common->action->u.block_dirty_bitmap_remove.data;
- state->bitmap = do_block_dirty_bitmap_remove(action->node, action->name,
- false, &state->bs, errp);
+ state->bitmap = block_dirty_bitmap_remove(action->node, action->name,
+ false, &state->bs, errp);
if (state->bitmap) {
bdrv_dirty_bitmap_skip_store(state->bitmap, true);
bdrv_dirty_bitmap_set_busy(state->bitmap, true);
@@ -3046,9 +3037,10 @@ out:
aio_context_release(aio_context);
}
-static BdrvDirtyBitmap *do_block_dirty_bitmap_remove(
- const char *node, const char *name, bool release,
- BlockDriverState **bitmap_bs, Error **errp)
+BdrvDirtyBitmap *block_dirty_bitmap_remove(const char *node, const char *name,
+ bool release,
+ BlockDriverState **bitmap_bs,
+ Error **errp)
{
BlockDriverState *bs;
BdrvDirtyBitmap *bitmap;
@@ -3090,7 +3082,7 @@ static BdrvDirtyBitmap *do_block_dirty_bitmap_remove(
void qmp_block_dirty_bitmap_remove(const char *node, const char *name,
Error **errp)
{
- do_block_dirty_bitmap_remove(node, name, true, NULL, errp);
+ block_dirty_bitmap_remove(node, name, true, NULL, errp);
}
/**
@@ -3151,10 +3143,9 @@ void qmp_block_dirty_bitmap_disable(const char *node, const char *name,
bdrv_disable_dirty_bitmap(bitmap);
}
-static BdrvDirtyBitmap *do_block_dirty_bitmap_merge(
- const char *node, const char *target,
- BlockDirtyBitmapMergeSourceList *bitmaps,
- HBitmap **backup, Error **errp)
+BdrvDirtyBitmap *block_dirty_bitmap_merge(const char *node, const char *target,
+ BlockDirtyBitmapMergeSourceList *bms,
+ HBitmap **backup, Error **errp)
{
BlockDriverState *bs;
BdrvDirtyBitmap *dst, *src, *anon;
@@ -3172,7 +3163,7 @@ static BdrvDirtyBitmap *do_block_dirty_bitmap_merge(
return NULL;
}
- for (lst = bitmaps; lst; lst = lst->next) {
+ for (lst = bms; lst; lst = lst->next) {
switch (lst->value->type) {
const char *name, *node;
case QTYPE_QSTRING:
@@ -3217,7 +3208,7 @@ void qmp_block_dirty_bitmap_merge(const char *node, const char *target,
BlockDirtyBitmapMergeSourceList *bitmaps,
Error **errp)
{
- do_block_dirty_bitmap_merge(node, target, bitmaps, NULL, errp);
+ block_dirty_bitmap_merge(node, target, bitmaps, NULL, errp);
}
BlockDirtyBitmapSha256 *qmp_x_debug_block_dirty_bitmap_sha256(const char *node,
diff --git a/include/block/block_int.h b/include/block/block_int.h
index cc18e8d..876a83d 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -1341,4 +1341,16 @@ int coroutine_fn bdrv_co_create_opts_simple(BlockDriver *drv,
Error **errp);
extern QemuOptsList bdrv_create_opts_simple;
+BdrvDirtyBitmap *block_dirty_bitmap_lookup(const char *node,
+ const char *name,
+ BlockDriverState **pbs,
+ Error **errp);
+BdrvDirtyBitmap *block_dirty_bitmap_merge(const char *node, const char *target,
+ BlockDirtyBitmapMergeSourceList *bms,
+ HBitmap **backup, Error **errp);
+BdrvDirtyBitmap *block_dirty_bitmap_remove(const char *node, const char *name,
+ bool release,
+ BlockDriverState **bitmap_bs,
+ Error **errp);
+
#endif /* BLOCK_INT_H */
--
1.8.3.1

107
SOURCES/kvm-blockdev-Return-bs-to-the-proper-context-on-snapshot.patch Normal file
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@ -0,0 +1,107 @@
From 24e5eca4218b294bd013e2d85a38345045506bec Mon Sep 17 00:00:00 2001
From: Sergio Lopez Pascual <slp@redhat.com>
Date: Fri, 7 Feb 2020 11:27:48 +0000
Subject: [PATCH 15/18] blockdev: Return bs to the proper context on snapshot
abort
RH-Author: Sergio Lopez Pascual <slp@redhat.com>
Message-id: <20200207112749.25073-9-slp@redhat.com>
Patchwork-id: 93761
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 8/9] blockdev: Return bs to the proper context on snapshot abort
Bugzilla: 1745606 1746217 1773517 1779036 1782111 1782175 1783965
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
external_snapshot_abort() calls to bdrv_set_backing_hd(), which
returns state->old_bs to the main AioContext, as it's intended to be
used then the BDS is going to be released. As that's not the case when
aborting an external snapshot, return it to the AioContext it was
before the call.
This issue can be triggered by issuing a transaction with two actions,
a proper blockdev-snapshot-sync and a bogus one, so the second will
trigger a transaction abort. This results in a crash with an stack
trace like this one:
#0 0x00007fa1048b28df in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
#1 0x00007fa10489ccf5 in __GI_abort () at abort.c:79
#2 0x00007fa10489cbc9 in __assert_fail_base
(fmt=0x7fa104a03300 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n", assertion=0x5572240b44d8 "bdrv_get_aio_context(old_bs) == bdrv_get_aio_context(new_bs)", file=0x557224014d30 "block.c", line=2240, function=<optimized out>) at assert.c:92
#3 0x00007fa1048aae96 in __GI___assert_fail
(assertion=assertion@entry=0x5572240b44d8 "bdrv_get_aio_context(old_bs) == bdrv_get_aio_context(new_bs)", file=file@entry=0x557224014d30 "block.c", line=line@entry=2240, function=function@entry=0x5572240b5d60 <__PRETTY_FUNCTION__.31620> "bdrv_replace_child_noperm") at assert.c:101
#4 0x0000557223e631f8 in bdrv_replace_child_noperm (child=0x557225b9c980, new_bs=new_bs@entry=0x557225c42e40) at block.c:2240
#5 0x0000557223e68be7 in bdrv_replace_node (from=0x557226951a60, to=0x557225c42e40, errp=0x5572247d6138 <error_abort>) at block.c:4196
#6 0x0000557223d069c4 in external_snapshot_abort (common=0x557225d7e170) at blockdev.c:1731
#7 0x0000557223d069c4 in external_snapshot_abort (common=0x557225d7e170) at blockdev.c:1717
#8 0x0000557223d09013 in qmp_transaction (dev_list=<optimized out>, has_props=<optimized out>, props=0x557225cc7d70, errp=errp@entry=0x7ffe704c0c98) at blockdev.c:2360
#9 0x0000557223e32085 in qmp_marshal_transaction (args=<optimized out>, ret=<optimized out>, errp=0x7ffe704c0d08) at qapi/qapi-commands-transaction.c:44
#10 0x0000557223ee798c in do_qmp_dispatch (errp=0x7ffe704c0d00, allow_oob=<optimized out>, request=<optimized out>, cmds=0x5572247d3cc0 <qmp_commands>) at qapi/qmp-dispatch.c:132
#11 0x0000557223ee798c in qmp_dispatch (cmds=0x5572247d3cc0 <qmp_commands>, request=<optimized out>, allow_oob=<optimized out>) at qapi/qmp-dispatch.c:175
#12 0x0000557223e06141 in monitor_qmp_dispatch (mon=0x557225c69ff0, req=<optimized out>) at monitor/qmp.c:120
#13 0x0000557223e0678a in monitor_qmp_bh_dispatcher (data=<optimized out>) at monitor/qmp.c:209
#14 0x0000557223f2f366 in aio_bh_call (bh=0x557225b9dc60) at util/async.c:117
#15 0x0000557223f2f366 in aio_bh_poll (ctx=ctx@entry=0x557225b9c840) at util/async.c:117
#16 0x0000557223f32754 in aio_dispatch (ctx=0x557225b9c840) at util/aio-posix.c:459
#17 0x0000557223f2f242 in aio_ctx_dispatch (source=<optimized out>, callback=<optimized out>, user_data=<optimized out>) at util/async.c:260
#18 0x00007fa10913467d in g_main_dispatch (context=0x557225c28e80) at gmain.c:3176
#19 0x00007fa10913467d in g_main_context_dispatch (context=context@entry=0x557225c28e80) at gmain.c:3829
#20 0x0000557223f31808 in glib_pollfds_poll () at util/main-loop.c:219
#21 0x0000557223f31808 in os_host_main_loop_wait (timeout=<optimized out>) at util/main-loop.c:242
#22 0x0000557223f31808 in main_loop_wait (nonblocking=<optimized out>) at util/main-loop.c:518
#23 0x0000557223d13201 in main_loop () at vl.c:1828
#24 0x0000557223bbfb82 in main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at vl.c:4504
RHBZ: https://bugzilla.redhat.com/show_bug.cgi?id=1779036
Signed-off-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 377410f6fb4f6b0d26d4a028c20766fae05de17e)
Signed-off-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
blockdev.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/blockdev.c b/blockdev.c
index d4ef6cd..4cd9a58 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1731,6 +1731,8 @@ static void external_snapshot_abort(BlkActionState *common)
if (state->new_bs) {
if (state->overlay_appended) {
AioContext *aio_context;
+ AioContext *tmp_context;
+ int ret;
aio_context = bdrv_get_aio_context(state->old_bs);
aio_context_acquire(aio_context);
@@ -1738,6 +1740,25 @@ static void external_snapshot_abort(BlkActionState *common)
bdrv_ref(state->old_bs); /* we can't let bdrv_set_backind_hd()
close state->old_bs; we need it */
bdrv_set_backing_hd(state->new_bs, NULL, &error_abort);
+
+ /*
+ * The call to bdrv_set_backing_hd() above returns state->old_bs to
+ * the main AioContext. As we're still going to be using it, return
+ * it to the AioContext it was before.
+ */
+ tmp_context = bdrv_get_aio_context(state->old_bs);
+ if (aio_context != tmp_context) {
+ aio_context_release(aio_context);
+ aio_context_acquire(tmp_context);
+
+ ret = bdrv_try_set_aio_context(state->old_bs,
+ aio_context, NULL);
+ assert(ret == 0);
+
+ aio_context_release(tmp_context);
+ aio_context_acquire(aio_context);
+ }
+
bdrv_replace_node(state->new_bs, state->old_bs, &error_abort);
bdrv_unref(state->old_bs); /* bdrv_replace_node() ref'ed old_bs */
--
1.8.3.1

720
SOURCES/kvm-blockdev-Split-off-basic-bitmap-operations-for-qemu-.patch Normal file
View File

@ -0,0 +1,720 @@
From 2afa718d59ef86879a9e34b4601a1f2658afa9ba Mon Sep 17 00:00:00 2001
From: Eric Blake <eblake@redhat.com>
Date: Tue, 2 Jun 2020 02:34:14 +0100
Subject: [PATCH 09/26] blockdev: Split off basic bitmap operations for
qemu-img
RH-Author: Eric Blake <eblake@redhat.com>
Message-id: <20200602023420.2133649-7-eblake@redhat.com>
Patchwork-id: 97073
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 06/12] blockdev: Split off basic bitmap operations for qemu-img
Bugzilla: 1779893 1779904
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
Upcoming patches want to add some basic bitmap manipulation abilities
to qemu-img. But blockdev.o is too heavyweight to link into qemu-img
(among other things, it would drag in block jobs and transaction
support - qemu-img does offline manipulation, where atomicity is less
important because there are no concurrent modifications to compete
with), so it's time to split off the bare bones of what we will need
into a new file block/monitor/bitmap-qmp-cmds.o.
This is sufficient to expose 6 QMP commands for use by qemu-img (add,
remove, clear, enable, disable, merge), as well as move the three
helper functions touched in the previous patch. Regarding
MAINTAINERS, the new file is automatically part of block core, but
also makes sense as related to other dirty bitmap files.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200513011648.166876-6-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
(cherry picked from commit bb4e58c6137e80129b955789dd4b66c1504f20dc)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
Conflicts:
Makefile.objs - comment context
block/monitor/Makefile.objs - context: a2dde2f2 not backported
blockdev.c - context
Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
MAINTAINERS | 1 +
Makefile.objs | 3 +-
block/monitor/Makefile.objs | 1 +
block/monitor/bitmap-qmp-cmds.c | 321 ++++++++++++++++++++++++++++++++++++++++
blockdev.c | 284 -----------------------------------
5 files changed, 324 insertions(+), 286 deletions(-)
create mode 100644 block/monitor/Makefile.objs
create mode 100644 block/monitor/bitmap-qmp-cmds.c
diff --git a/MAINTAINERS b/MAINTAINERS
index 3a81ac9..49d5d44 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1875,6 +1875,7 @@ L: qemu-block@nongnu.org
S: Supported
F: include/qemu/hbitmap.h
F: include/block/dirty-bitmap.h
+F: block/monitor/bitmap-qmp-cmds.c
F: block/dirty-bitmap.c
F: block/qcow2-bitmap.c
F: migration/block-dirty-bitmap.c
diff --git a/Makefile.objs b/Makefile.objs
index 1a8f288..7404ef0 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -13,9 +13,8 @@ authz-obj-y = authz/
#######################################################################
# block-obj-y is code used by both qemu system emulation and qemu-img
-block-obj-y = nbd/
+block-obj-y = block/ block/monitor/ nbd/ scsi/
block-obj-y += block.o blockjob.o job.o
-block-obj-y += block/ scsi/
block-obj-y += qemu-io-cmds.o
block-obj-$(CONFIG_REPLICATION) += replication.o
diff --git a/block/monitor/Makefile.objs b/block/monitor/Makefile.objs
new file mode 100644
index 0000000..f0c7642
--- /dev/null
+++ b/block/monitor/Makefile.objs
@@ -0,0 +1 @@
+block-obj-y += bitmap-qmp-cmds.o
diff --git a/block/monitor/bitmap-qmp-cmds.c b/block/monitor/bitmap-qmp-cmds.c
new file mode 100644
index 0000000..9f11dee
--- /dev/null
+++ b/block/monitor/bitmap-qmp-cmds.c
@@ -0,0 +1,321 @@
+/*
+ * QEMU block dirty bitmap QMP commands
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or
+ * later. See the COPYING file in the top-level directory.
+ *
+ * This file incorporates work covered by the following copyright and
+ * permission notice:
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "qemu/osdep.h"
+
+#include "block/block_int.h"
+#include "qapi/qapi-commands-block.h"
+#include "qapi/error.h"
+
+/**
+ * block_dirty_bitmap_lookup:
+ * Return a dirty bitmap (if present), after validating
+ * the node reference and bitmap names.
+ *
+ * @node: The name of the BDS node to search for bitmaps
+ * @name: The name of the bitmap to search for
+ * @pbs: Output pointer for BDS lookup, if desired. Can be NULL.
+ * @errp: Output pointer for error information. Can be NULL.
+ *
+ * @return: A bitmap object on success, or NULL on failure.
+ */
+BdrvDirtyBitmap *block_dirty_bitmap_lookup(const char *node,
+ const char *name,
+ BlockDriverState **pbs,
+ Error **errp)
+{
+ BlockDriverState *bs;
+ BdrvDirtyBitmap *bitmap;
+
+ if (!node) {
+ error_setg(errp, "Node cannot be NULL");
+ return NULL;
+ }
+ if (!name) {
+ error_setg(errp, "Bitmap name cannot be NULL");
+ return NULL;
+ }
+ bs = bdrv_lookup_bs(node, node, NULL);
+ if (!bs) {
+ error_setg(errp, "Node '%s' not found", node);
+ return NULL;
+ }
+
+ bitmap = bdrv_find_dirty_bitmap(bs, name);
+ if (!bitmap) {
+ error_setg(errp, "Dirty bitmap '%s' not found", name);
+ return NULL;
+ }
+
+ if (pbs) {
+ *pbs = bs;
+ }
+
+ return bitmap;
+}
+
+void qmp_block_dirty_bitmap_add(const char *node, const char *name,
+ bool has_granularity, uint32_t granularity,
+ bool has_persistent, bool persistent,
+ bool has_disabled, bool disabled,
+ Error **errp)
+{
+ BlockDriverState *bs;
+ BdrvDirtyBitmap *bitmap;
+ AioContext *aio_context;
+
+ if (!name || name[0] == '\0') {
+ error_setg(errp, "Bitmap name cannot be empty");
+ return;
+ }
+
+ bs = bdrv_lookup_bs(node, node, errp);
+ if (!bs) {
+ return;
+ }
+
+ aio_context = bdrv_get_aio_context(bs);
+ aio_context_acquire(aio_context);
+
+ if (has_granularity) {
+ if (granularity < 512 || !is_power_of_2(granularity)) {
+ error_setg(errp, "Granularity must be power of 2 "
+ "and at least 512");
+ goto out;
+ }
+ } else {
+ /* Default to cluster size, if available: */
+ granularity = bdrv_get_default_bitmap_granularity(bs);
+ }
+
+ if (!has_persistent) {
+ persistent = false;
+ }
+
+ if (!has_disabled) {
+ disabled = false;
+ }
+
+ if (persistent &&
+ !bdrv_can_store_new_dirty_bitmap(bs, name, granularity, errp))
+ {
+ goto out;
+ }
+
+ bitmap = bdrv_create_dirty_bitmap(bs, granularity, name, errp);
+ if (bitmap == NULL) {
+ goto out;
+ }
+
+ if (disabled) {
+ bdrv_disable_dirty_bitmap(bitmap);
+ }
+
+ bdrv_dirty_bitmap_set_persistence(bitmap, persistent);
+
+out:
+ aio_context_release(aio_context);
+}
+
+BdrvDirtyBitmap *block_dirty_bitmap_remove(const char *node, const char *name,
+ bool release,
+ BlockDriverState **bitmap_bs,
+ Error **errp)
+{
+ BlockDriverState *bs;
+ BdrvDirtyBitmap *bitmap;
+ AioContext *aio_context;
+
+ bitmap = block_dirty_bitmap_lookup(node, name, &bs, errp);
+ if (!bitmap || !bs) {
+ return NULL;
+ }
+
+ aio_context = bdrv_get_aio_context(bs);
+ aio_context_acquire(aio_context);
+
+ if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_BUSY | BDRV_BITMAP_RO,
+ errp)) {
+ aio_context_release(aio_context);
+ return NULL;
+ }
+
+ if (bdrv_dirty_bitmap_get_persistence(bitmap) &&
+ bdrv_remove_persistent_dirty_bitmap(bs, name, errp) < 0)
+ {
+ aio_context_release(aio_context);
+ return NULL;
+ }
+
+ if (release) {
+ bdrv_release_dirty_bitmap(bitmap);
+ }
+
+ if (bitmap_bs) {
+ *bitmap_bs = bs;
+ }
+
+ aio_context_release(aio_context);
+ return release ? NULL : bitmap;
+}
+
+void qmp_block_dirty_bitmap_remove(const char *node, const char *name,
+ Error **errp)
+{
+ block_dirty_bitmap_remove(node, name, true, NULL, errp);
+}
+
+/**
+ * Completely clear a bitmap, for the purposes of synchronizing a bitmap
+ * immediately after a full backup operation.
+ */
+void qmp_block_dirty_bitmap_clear(const char *node, const char *name,
+ Error **errp)
+{
+ BdrvDirtyBitmap *bitmap;
+ BlockDriverState *bs;
+
+ bitmap = block_dirty_bitmap_lookup(node, name, &bs, errp);
+ if (!bitmap || !bs) {
+ return;
+ }
+
+ if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_DEFAULT, errp)) {
+ return;
+ }
+
+ bdrv_clear_dirty_bitmap(bitmap, NULL);
+}
+
+void qmp_block_dirty_bitmap_enable(const char *node, const char *name,
+ Error **errp)
+{
+ BlockDriverState *bs;
+ BdrvDirtyBitmap *bitmap;
+
+ bitmap = block_dirty_bitmap_lookup(node, name, &bs, errp);
+ if (!bitmap) {
+ return;
+ }
+
+ if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_ALLOW_RO, errp)) {
+ return;
+ }
+
+ bdrv_enable_dirty_bitmap(bitmap);
+}
+
+void qmp_block_dirty_bitmap_disable(const char *node, const char *name,
+ Error **errp)
+{
+ BlockDriverState *bs;
+ BdrvDirtyBitmap *bitmap;
+
+ bitmap = block_dirty_bitmap_lookup(node, name, &bs, errp);
+ if (!bitmap) {
+ return;
+ }
+
+ if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_ALLOW_RO, errp)) {
+ return;
+ }
+
+ bdrv_disable_dirty_bitmap(bitmap);
+}
+
+BdrvDirtyBitmap *block_dirty_bitmap_merge(const char *node, const char *target,
+ BlockDirtyBitmapMergeSourceList *bms,
+ HBitmap **backup, Error **errp)
+{
+ BlockDriverState *bs;
+ BdrvDirtyBitmap *dst, *src, *anon;
+ BlockDirtyBitmapMergeSourceList *lst;
+ Error *local_err = NULL;
+
+ dst = block_dirty_bitmap_lookup(node, target, &bs, errp);
+ if (!dst) {
+ return NULL;
+ }
+
+ anon = bdrv_create_dirty_bitmap(bs, bdrv_dirty_bitmap_granularity(dst),
+ NULL, errp);
+ if (!anon) {
+ return NULL;
+ }
+
+ for (lst = bms; lst; lst = lst->next) {
+ switch (lst->value->type) {
+ const char *name, *node;
+ case QTYPE_QSTRING:
+ name = lst->value->u.local;
+ src = bdrv_find_dirty_bitmap(bs, name);
+ if (!src) {
+ error_setg(errp, "Dirty bitmap '%s' not found", name);
+ dst = NULL;
+ goto out;
+ }
+ break;
+ case QTYPE_QDICT:
+ node = lst->value->u.external.node;
+ name = lst->value->u.external.name;
+ src = block_dirty_bitmap_lookup(node, name, NULL, errp);
+ if (!src) {
+ dst = NULL;
+ goto out;
+ }
+ break;
+ default:
+ abort();
+ }
+
+ bdrv_merge_dirty_bitmap(anon, src, NULL, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ dst = NULL;
+ goto out;
+ }
+ }
+
+ /* Merge into dst; dst is unchanged on failure. */
+ bdrv_merge_dirty_bitmap(dst, anon, backup, errp);
+
+ out:
+ bdrv_release_dirty_bitmap(anon);
+ return dst;
+}
+
+void qmp_block_dirty_bitmap_merge(const char *node, const char *target,
+ BlockDirtyBitmapMergeSourceList *bitmaps,
+ Error **errp)
+{
+ block_dirty_bitmap_merge(node, target, bitmaps, NULL, errp);
+}
diff --git a/blockdev.c b/blockdev.c
index 3958058..5128c9b 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1250,53 +1250,6 @@ out_aio_context:
return NULL;
}
-/**
- * block_dirty_bitmap_lookup:
- * Return a dirty bitmap (if present), after validating
- * the node reference and bitmap names.
- *
- * @node: The name of the BDS node to search for bitmaps
- * @name: The name of the bitmap to search for
- * @pbs: Output pointer for BDS lookup, if desired. Can be NULL.
- * @errp: Output pointer for error information. Can be NULL.
- *
- * @return: A bitmap object on success, or NULL on failure.
- */
-BdrvDirtyBitmap *block_dirty_bitmap_lookup(const char *node,
- const char *name,
- BlockDriverState **pbs,
- Error **errp)
-{
- BlockDriverState *bs;
- BdrvDirtyBitmap *bitmap;
-
- if (!node) {
- error_setg(errp, "Node cannot be NULL");
- return NULL;
- }
- if (!name) {
- error_setg(errp, "Bitmap name cannot be NULL");
- return NULL;
- }
- bs = bdrv_lookup_bs(node, node, NULL);
- if (!bs) {
- error_setg(errp, "Node '%s' not found", node);
- return NULL;
- }
-
- bitmap = bdrv_find_dirty_bitmap(bs, name);
- if (!bitmap) {
- error_setg(errp, "Dirty bitmap '%s' not found", name);
- return NULL;
- }
-
- if (pbs) {
- *pbs = bs;
- }
-
- return bitmap;
-}
-
/* New and old BlockDriverState structs for atomic group operations */
typedef struct BlkActionState BlkActionState;
@@ -2974,243 +2927,6 @@ out:
aio_context_release(aio_context);
}
-void qmp_block_dirty_bitmap_add(const char *node, const char *name,
- bool has_granularity, uint32_t granularity,
- bool has_persistent, bool persistent,
- bool has_disabled, bool disabled,
- Error **errp)
-{
- BlockDriverState *bs;
- BdrvDirtyBitmap *bitmap;
- AioContext *aio_context;
-
- if (!name || name[0] == '\0') {
- error_setg(errp, "Bitmap name cannot be empty");
- return;
- }
-
- bs = bdrv_lookup_bs(node, node, errp);
- if (!bs) {
- return;
- }
-
- aio_context = bdrv_get_aio_context(bs);
- aio_context_acquire(aio_context);
-
- if (has_granularity) {
- if (granularity < 512 || !is_power_of_2(granularity)) {
- error_setg(errp, "Granularity must be power of 2 "
- "and at least 512");
- goto out;
- }
- } else {
- /* Default to cluster size, if available: */
- granularity = bdrv_get_default_bitmap_granularity(bs);
- }
-
- if (!has_persistent) {
- persistent = false;
- }
-
- if (!has_disabled) {
- disabled = false;
- }
-
- if (persistent &&
- !bdrv_can_store_new_dirty_bitmap(bs, name, granularity, errp))
- {
- goto out;
- }
-
- bitmap = bdrv_create_dirty_bitmap(bs, granularity, name, errp);
- if (bitmap == NULL) {
- goto out;
- }
-
- if (disabled) {
- bdrv_disable_dirty_bitmap(bitmap);
- }
-
- bdrv_dirty_bitmap_set_persistence(bitmap, persistent);
-
-out:
- aio_context_release(aio_context);
-}
-
-BdrvDirtyBitmap *block_dirty_bitmap_remove(const char *node, const char *name,
- bool release,
- BlockDriverState **bitmap_bs,
- Error **errp)
-{
- BlockDriverState *bs;
- BdrvDirtyBitmap *bitmap;
- AioContext *aio_context;
-
- bitmap = block_dirty_bitmap_lookup(node, name, &bs, errp);
- if (!bitmap || !bs) {
- return NULL;
- }
-
- aio_context = bdrv_get_aio_context(bs);
- aio_context_acquire(aio_context);
-
- if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_BUSY | BDRV_BITMAP_RO,
- errp)) {
- aio_context_release(aio_context);
- return NULL;
- }
-
- if (bdrv_dirty_bitmap_get_persistence(bitmap) &&
- bdrv_remove_persistent_dirty_bitmap(bs, name, errp) < 0)
- {
- aio_context_release(aio_context);
- return NULL;
- }
-
- if (release) {
- bdrv_release_dirty_bitmap(bitmap);
- }
-
- if (bitmap_bs) {
- *bitmap_bs = bs;
- }
-
- aio_context_release(aio_context);
- return release ? NULL : bitmap;
-}
-
-void qmp_block_dirty_bitmap_remove(const char *node, const char *name,
- Error **errp)
-{
- block_dirty_bitmap_remove(node, name, true, NULL, errp);
-}
-
-/**
- * Completely clear a bitmap, for the purposes of synchronizing a bitmap
- * immediately after a full backup operation.
- */
-void qmp_block_dirty_bitmap_clear(const char *node, const char *name,
- Error **errp)
-{
- BdrvDirtyBitmap *bitmap;
- BlockDriverState *bs;
-
- bitmap = block_dirty_bitmap_lookup(node, name, &bs, errp);
- if (!bitmap || !bs) {
- return;
- }
-
- if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_DEFAULT, errp)) {
- return;
- }
-
- bdrv_clear_dirty_bitmap(bitmap, NULL);
-}
-
-void qmp_block_dirty_bitmap_enable(const char *node, const char *name,
- Error **errp)
-{
- BlockDriverState *bs;
- BdrvDirtyBitmap *bitmap;
-
- bitmap = block_dirty_bitmap_lookup(node, name, &bs, errp);
- if (!bitmap) {
- return;
- }
-
- if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_ALLOW_RO, errp)) {
- return;
- }
-
- bdrv_enable_dirty_bitmap(bitmap);
-}
-
-void qmp_block_dirty_bitmap_disable(const char *node, const char *name,
- Error **errp)
-{
- BlockDriverState *bs;
- BdrvDirtyBitmap *bitmap;
-
- bitmap = block_dirty_bitmap_lookup(node, name, &bs, errp);
- if (!bitmap) {
- return;
- }
-
- if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_ALLOW_RO, errp)) {
- return;
- }
-
- bdrv_disable_dirty_bitmap(bitmap);
-}
-
-BdrvDirtyBitmap *block_dirty_bitmap_merge(const char *node, const char *target,
- BlockDirtyBitmapMergeSourceList *bms,
- HBitmap **backup, Error **errp)
-{
- BlockDriverState *bs;
- BdrvDirtyBitmap *dst, *src, *anon;
- BlockDirtyBitmapMergeSourceList *lst;
- Error *local_err = NULL;
-
- dst = block_dirty_bitmap_lookup(node, target, &bs, errp);
- if (!dst) {
- return NULL;
- }
-
- anon = bdrv_create_dirty_bitmap(bs, bdrv_dirty_bitmap_granularity(dst),
- NULL, errp);
- if (!anon) {
- return NULL;
- }
-
- for (lst = bms; lst; lst = lst->next) {
- switch (lst->value->type) {
- const char *name, *node;
- case QTYPE_QSTRING:
- name = lst->value->u.local;
- src = bdrv_find_dirty_bitmap(bs, name);
- if (!src) {
- error_setg(errp, "Dirty bitmap '%s' not found", name);
- dst = NULL;
- goto out;
- }
- break;
- case QTYPE_QDICT:
- node = lst->value->u.external.node;
- name = lst->value->u.external.name;
- src = block_dirty_bitmap_lookup(node, name, NULL, errp);
- if (!src) {
- dst = NULL;
- goto out;
- }
- break;
- default:
- abort();
- }
-
- bdrv_merge_dirty_bitmap(anon, src, NULL, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- dst = NULL;
- goto out;
- }
- }
-
- /* Merge into dst; dst is unchanged on failure. */
- bdrv_merge_dirty_bitmap(dst, anon, backup, errp);
-
- out:
- bdrv_release_dirty_bitmap(anon);
- return dst;
-}
-
-void qmp_block_dirty_bitmap_merge(const char *node, const char *target,
- BlockDirtyBitmapMergeSourceList *bitmaps,
- Error **errp)
-{
- block_dirty_bitmap_merge(node, target, bitmaps, NULL, errp);
-}
-
BlockDirtyBitmapSha256 *qmp_x_debug_block_dirty_bitmap_sha256(const char *node,
const char *name,
Error **errp)
--
1.8.3.1

62
SOURCES/kvm-blockdev-fix-coding-style-issues-in-drive_backup_pre.patch Normal file
View File

@ -0,0 +1,62 @@
From d56b53cd75c4146eae7a06d1cc30ab823a9bde93 Mon Sep 17 00:00:00 2001
From: Sergio Lopez Pascual <slp@redhat.com>
Date: Fri, 7 Feb 2020 11:27:41 +0000
Subject: [PATCH 08/18] blockdev: fix coding style issues in
drive_backup_prepare
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Sergio Lopez Pascual <slp@redhat.com>
Message-id: <20200207112749.25073-2-slp@redhat.com>
Patchwork-id: 93754
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 1/9] blockdev: fix coding style issues in drive_backup_prepare
Bugzilla: 1745606 1746217 1773517 1779036 1782111 1782175 1783965
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Fix a couple of minor coding style issues in drive_backup_prepare.
Signed-off-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 471ded690e19689018535e3f48480507ed073e22)
Signed-off-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
blockdev.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/blockdev.c b/blockdev.c
index 8e029e9..553e315 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -3620,7 +3620,7 @@ static BlockJob *do_drive_backup(DriveBackup *backup, JobTxn *txn,
if (!backup->has_format) {
backup->format = backup->mode == NEW_IMAGE_MODE_EXISTING ?
- NULL : (char*) bs->drv->format_name;
+ NULL : (char *) bs->drv->format_name;
}
/* Early check to avoid creating target */
@@ -3630,8 +3630,10 @@ static BlockJob *do_drive_backup(DriveBackup *backup, JobTxn *txn,
flags = bs->open_flags | BDRV_O_RDWR;
- /* See if we have a backing HD we can use to create our new image
- * on top of. */
+ /*
+ * See if we have a backing HD we can use to create our new image
+ * on top of.
+ */
if (backup->sync == MIRROR_SYNC_MODE_TOP) {
source = backing_bs(bs);
if (!source) {
--
1.8.3.1

204
SOURCES/kvm-blockdev-honor-bdrv_try_set_aio_context-context-requ.patch Normal file
View File

@ -0,0 +1,204 @@
From da4ee4c0d56200042cb86f8ccd2777009bd82df3 Mon Sep 17 00:00:00 2001
From: Sergio Lopez Pascual <slp@redhat.com>
Date: Fri, 7 Feb 2020 11:27:44 +0000
Subject: [PATCH 11/18] blockdev: honor bdrv_try_set_aio_context() context
requirements
RH-Author: Sergio Lopez Pascual <slp@redhat.com>
Message-id: <20200207112749.25073-5-slp@redhat.com>
Patchwork-id: 93758
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 4/9] blockdev: honor bdrv_try_set_aio_context() context requirements
Bugzilla: 1745606 1746217 1773517 1779036 1782111 1782175 1783965
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
bdrv_try_set_aio_context() requires that the old context is held, and
the new context is not held. Fix all the occurrences where it's not
done this way.
Suggested-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 3ea67e08832775a28d0bd2795f01bc77e7ea1512)
Signed-off-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
blockdev.c | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++--------
1 file changed, 60 insertions(+), 8 deletions(-)
diff --git a/blockdev.c b/blockdev.c
index 152a0f7..1dacbc2 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1535,6 +1535,7 @@ static void external_snapshot_prepare(BlkActionState *common,
DO_UPCAST(ExternalSnapshotState, common, common);
TransactionAction *action = common->action;
AioContext *aio_context;
+ AioContext *old_context;
int ret;
/* 'blockdev-snapshot' and 'blockdev-snapshot-sync' have similar
@@ -1675,7 +1676,16 @@ static void external_snapshot_prepare(BlkActionState *common,
goto out;
}
+ /* Honor bdrv_try_set_aio_context() context acquisition requirements. */
+ old_context = bdrv_get_aio_context(state->new_bs);
+ aio_context_release(aio_context);
+ aio_context_acquire(old_context);
+
ret = bdrv_try_set_aio_context(state->new_bs, aio_context, errp);
+
+ aio_context_release(old_context);
+ aio_context_acquire(aio_context);
+
if (ret < 0) {
goto out;
}
@@ -1775,11 +1785,13 @@ static void drive_backup_prepare(BlkActionState *common, Error **errp)
BlockDriverState *target_bs;
BlockDriverState *source = NULL;
AioContext *aio_context;
+ AioContext *old_context;
QDict *options;
Error *local_err = NULL;
int flags;
int64_t size;
bool set_backing_hd = false;
+ int ret;
assert(common->action->type == TRANSACTION_ACTION_KIND_DRIVE_BACKUP);
backup = common->action->u.drive_backup.data;
@@ -1868,6 +1880,21 @@ static void drive_backup_prepare(BlkActionState *common, Error **errp)
goto out;
}
+ /* Honor bdrv_try_set_aio_context() context acquisition requirements. */
+ old_context = bdrv_get_aio_context(target_bs);
+ aio_context_release(aio_context);
+ aio_context_acquire(old_context);
+
+ ret = bdrv_try_set_aio_context(target_bs, aio_context, errp);
+ if (ret < 0) {
+ bdrv_unref(target_bs);
+ aio_context_release(old_context);
+ return;
+ }
+
+ aio_context_release(old_context);
+ aio_context_acquire(aio_context);
+
if (set_backing_hd) {
bdrv_set_backing_hd(target_bs, source, &local_err);
if (local_err) {
@@ -1947,6 +1974,8 @@ static void blockdev_backup_prepare(BlkActionState *common, Error **errp)
BlockDriverState *bs;
BlockDriverState *target_bs;
AioContext *aio_context;
+ AioContext *old_context;
+ int ret;
assert(common->action->type == TRANSACTION_ACTION_KIND_BLOCKDEV_BACKUP);
backup = common->action->u.blockdev_backup.data;
@@ -1961,7 +1990,18 @@ static void blockdev_backup_prepare(BlkActionState *common, Error **errp)
return;
}
+ /* Honor bdrv_try_set_aio_context() context acquisition requirements. */
aio_context = bdrv_get_aio_context(bs);
+ old_context = bdrv_get_aio_context(target_bs);
+ aio_context_acquire(old_context);
+
+ ret = bdrv_try_set_aio_context(target_bs, aio_context, errp);
+ if (ret < 0) {
+ aio_context_release(old_context);
+ return;
+ }
+
+ aio_context_release(old_context);
aio_context_acquire(aio_context);
state->bs = bs;
@@ -3562,7 +3602,6 @@ static BlockJob *do_backup_common(BackupCommon *backup,
BlockJob *job = NULL;
BdrvDirtyBitmap *bmap = NULL;
int job_flags = JOB_DEFAULT;
- int ret;
if (!backup->has_speed) {
backup->speed = 0;
@@ -3586,11 +3625,6 @@ static BlockJob *do_backup_common(BackupCommon *backup,
backup->compress = false;
}
- ret = bdrv_try_set_aio_context(target_bs, aio_context, errp);
- if (ret < 0) {
- return NULL;
- }
-
if ((backup->sync == MIRROR_SYNC_MODE_BITMAP) ||
(backup->sync == MIRROR_SYNC_MODE_INCREMENTAL)) {
/* done before desugaring 'incremental' to print the right message */
@@ -3825,6 +3859,7 @@ void qmp_drive_mirror(DriveMirror *arg, Error **errp)
BlockDriverState *bs;
BlockDriverState *source, *target_bs;
AioContext *aio_context;
+ AioContext *old_context;
BlockMirrorBackingMode backing_mode;
Error *local_err = NULL;
QDict *options = NULL;
@@ -3937,12 +3972,22 @@ void qmp_drive_mirror(DriveMirror *arg, Error **errp)
(arg->mode == NEW_IMAGE_MODE_EXISTING ||
!bdrv_has_zero_init(target_bs)));
+
+ /* Honor bdrv_try_set_aio_context() context acquisition requirements. */
+ old_context = bdrv_get_aio_context(target_bs);
+ aio_context_release(aio_context);
+ aio_context_acquire(old_context);
+
ret = bdrv_try_set_aio_context(target_bs, aio_context, errp);
if (ret < 0) {
bdrv_unref(target_bs);
- goto out;
+ aio_context_release(old_context);
+ return;
}
+ aio_context_release(old_context);
+ aio_context_acquire(aio_context);
+
blockdev_mirror_common(arg->has_job_id ? arg->job_id : NULL, bs, target_bs,
arg->has_replaces, arg->replaces, arg->sync,
backing_mode, zero_target,
@@ -3984,6 +4029,7 @@ void qmp_blockdev_mirror(bool has_job_id, const char *job_id,
BlockDriverState *bs;
BlockDriverState *target_bs;
AioContext *aio_context;
+ AioContext *old_context;
BlockMirrorBackingMode backing_mode = MIRROR_LEAVE_BACKING_CHAIN;
Error *local_err = NULL;
bool zero_target;
@@ -4001,10 +4047,16 @@ void qmp_blockdev_mirror(bool has_job_id, const char *job_id,
zero_target = (sync == MIRROR_SYNC_MODE_FULL);
+ /* Honor bdrv_try_set_aio_context() context acquisition requirements. */
+ old_context = bdrv_get_aio_context(target_bs);
aio_context = bdrv_get_aio_context(bs);
- aio_context_acquire(aio_context);
+ aio_context_acquire(old_context);
ret = bdrv_try_set_aio_context(target_bs, aio_context, errp);
+
+ aio_context_release(old_context);
+ aio_context_acquire(aio_context);
+
if (ret < 0) {
goto out;
}
--
1.8.3.1

144
SOURCES/kvm-blockdev-unify-qmp_blockdev_backup-and-blockdev-back.patch Normal file
View File

@ -0,0 +1,144 @@
From 959955217f745f1ee6cbea97314efe69f2d7dc08 Mon Sep 17 00:00:00 2001
From: Sergio Lopez Pascual <slp@redhat.com>
Date: Fri, 7 Feb 2020 11:27:43 +0000
Subject: [PATCH 10/18] blockdev: unify qmp_blockdev_backup and blockdev-backup
transaction paths
RH-Author: Sergio Lopez Pascual <slp@redhat.com>
Message-id: <20200207112749.25073-4-slp@redhat.com>
Patchwork-id: 93756
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 3/9] blockdev: unify qmp_blockdev_backup and blockdev-backup transaction paths
Bugzilla: 1745606 1746217 1773517 1779036 1782111 1782175 1783965
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Issuing a blockdev-backup from qmp_blockdev_backup takes a slightly
different path than when it's issued from a transaction. In the code,
this is manifested as some redundancy between do_blockdev_backup() and
blockdev_backup_prepare().
This change unifies both paths, merging do_blockdev_backup() and
blockdev_backup_prepare(), and changing qmp_blockdev_backup() to
create a transaction instead of calling do_backup_common() direcly.
As a side-effect, now qmp_blockdev_backup() is executed inside a
drained section, as it happens when creating a blockdev-backup
transaction. This change is visible from the user's perspective, as
the job gets paused and immediately resumed before starting the actual
work.
Signed-off-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 5b7bfe515ecbd584b40ff6e41d2fd8b37c7d5139)
Signed-off-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
blockdev.c | 60 +++++++++++++-----------------------------------------------
1 file changed, 13 insertions(+), 47 deletions(-)
diff --git a/blockdev.c b/blockdev.c
index 5e85fc0..152a0f7 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1940,16 +1940,13 @@ typedef struct BlockdevBackupState {
BlockJob *job;
} BlockdevBackupState;
-static BlockJob *do_blockdev_backup(BlockdevBackup *backup, JobTxn *txn,
- Error **errp);
-
static void blockdev_backup_prepare(BlkActionState *common, Error **errp)
{
BlockdevBackupState *state = DO_UPCAST(BlockdevBackupState, common, common);
BlockdevBackup *backup;
- BlockDriverState *bs, *target;
+ BlockDriverState *bs;
+ BlockDriverState *target_bs;
AioContext *aio_context;
- Error *local_err = NULL;
assert(common->action->type == TRANSACTION_ACTION_KIND_BLOCKDEV_BACKUP);
backup = common->action->u.blockdev_backup.data;
@@ -1959,8 +1956,8 @@ static void blockdev_backup_prepare(BlkActionState *common, Error **errp)
return;
}
- target = bdrv_lookup_bs(backup->target, backup->target, errp);
- if (!target) {
+ target_bs = bdrv_lookup_bs(backup->target, backup->target, errp);
+ if (!target_bs) {
return;
}
@@ -1971,13 +1968,10 @@ static void blockdev_backup_prepare(BlkActionState *common, Error **errp)
/* Paired with .clean() */
bdrv_drained_begin(state->bs);
- state->job = do_blockdev_backup(backup, common->block_job_txn, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
- goto out;
- }
+ state->job = do_backup_common(qapi_BlockdevBackup_base(backup),
+ bs, target_bs, aio_context,
+ common->block_job_txn, errp);
-out:
aio_context_release(aio_context);
}
@@ -3695,41 +3689,13 @@ XDbgBlockGraph *qmp_x_debug_query_block_graph(Error **errp)
return bdrv_get_xdbg_block_graph(errp);
}
-BlockJob *do_blockdev_backup(BlockdevBackup *backup, JobTxn *txn,
- Error **errp)
+void qmp_blockdev_backup(BlockdevBackup *backup, Error **errp)
{
- BlockDriverState *bs;
- BlockDriverState *target_bs;
- AioContext *aio_context;
- BlockJob *job;
-
- bs = bdrv_lookup_bs(backup->device, backup->device, errp);
- if (!bs) {
- return NULL;
- }
-
- target_bs = bdrv_lookup_bs(backup->target, backup->target, errp);
- if (!target_bs) {
- return NULL;
- }
-
- aio_context = bdrv_get_aio_context(bs);
- aio_context_acquire(aio_context);
-
- job = do_backup_common(qapi_BlockdevBackup_base(backup),
- bs, target_bs, aio_context, txn, errp);
-
- aio_context_release(aio_context);
- return job;
-}
-
-void qmp_blockdev_backup(BlockdevBackup *arg, Error **errp)
-{
- BlockJob *job;
- job = do_blockdev_backup(arg, NULL, errp);
- if (job) {
- job_start(&job->job);
- }
+ TransactionAction action = {
+ .type = TRANSACTION_ACTION_KIND_BLOCKDEV_BACKUP,
+ .u.blockdev_backup.data = backup,
+ };
+ blockdev_do_action(&action, errp);
}
/* Parameter check and block job starting for drive mirroring.
--
1.8.3.1

419
SOURCES/kvm-blockdev-unify-qmp_drive_backup-and-drive-backup-tra.patch Normal file
View File

@ -0,0 +1,419 @@
From 4a03ab2a6cc4974d8d43240d1297b09160818af3 Mon Sep 17 00:00:00 2001
From: Sergio Lopez Pascual <slp@redhat.com>
Date: Fri, 7 Feb 2020 11:27:42 +0000
Subject: [PATCH 09/18] blockdev: unify qmp_drive_backup and drive-backup
transaction paths
RH-Author: Sergio Lopez Pascual <slp@redhat.com>
Message-id: <20200207112749.25073-3-slp@redhat.com>
Patchwork-id: 93755
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 2/9] blockdev: unify qmp_drive_backup and drive-backup transaction paths
Bugzilla: 1745606 1746217 1773517 1779036 1782111 1782175 1783965
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Issuing a drive-backup from qmp_drive_backup takes a slightly
different path than when it's issued from a transaction. In the code,
this is manifested as some redundancy between do_drive_backup() and
drive_backup_prepare().
This change unifies both paths, merging do_drive_backup() and
drive_backup_prepare(), and changing qmp_drive_backup() to create a
transaction instead of calling do_backup_common() direcly.
As a side-effect, now qmp_drive_backup() is executed inside a drained
section, as it happens when creating a drive-backup transaction. This
change is visible from the user's perspective, as the job gets paused
and immediately resumed before starting the actual work.
Also fix tests 141, 185 and 219 to cope with the extra
JOB_STATUS_CHANGE lines.
Signed-off-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 2288ccfac96281c316db942d10e3f921c1373064)
Signed-off-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
blockdev.c | 224 ++++++++++++++++++++-------------------------
tests/qemu-iotests/141.out | 2 +
tests/qemu-iotests/185.out | 2 +
tests/qemu-iotests/219 | 7 +-
tests/qemu-iotests/219.out | 8 ++
5 files changed, 117 insertions(+), 126 deletions(-)
diff --git a/blockdev.c b/blockdev.c
index 553e315..5e85fc0 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -1761,39 +1761,128 @@ typedef struct DriveBackupState {
BlockJob *job;
} DriveBackupState;
-static BlockJob *do_drive_backup(DriveBackup *backup, JobTxn *txn,
- Error **errp);
+static BlockJob *do_backup_common(BackupCommon *backup,
+ BlockDriverState *bs,
+ BlockDriverState *target_bs,
+ AioContext *aio_context,
+ JobTxn *txn, Error **errp);
static void drive_backup_prepare(BlkActionState *common, Error **errp)
{
DriveBackupState *state = DO_UPCAST(DriveBackupState, common, common);
- BlockDriverState *bs;
DriveBackup *backup;
+ BlockDriverState *bs;
+ BlockDriverState *target_bs;
+ BlockDriverState *source = NULL;
AioContext *aio_context;
+ QDict *options;
Error *local_err = NULL;
+ int flags;
+ int64_t size;
+ bool set_backing_hd = false;
assert(common->action->type == TRANSACTION_ACTION_KIND_DRIVE_BACKUP);
backup = common->action->u.drive_backup.data;
+ if (!backup->has_mode) {
+ backup->mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS;
+ }
+
bs = bdrv_lookup_bs(backup->device, backup->device, errp);
if (!bs) {
return;
}
+ if (!bs->drv) {
+ error_setg(errp, "Device has no medium");
+ return;
+ }
+
aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(aio_context);
/* Paired with .clean() */
bdrv_drained_begin(bs);
- state->bs = bs;
+ if (!backup->has_format) {
+ backup->format = backup->mode == NEW_IMAGE_MODE_EXISTING ?
+ NULL : (char *) bs->drv->format_name;
+ }
+
+ /* Early check to avoid creating target */
+ if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_BACKUP_SOURCE, errp)) {
+ goto out;
+ }
+
+ flags = bs->open_flags | BDRV_O_RDWR;
+
+ /*
+ * See if we have a backing HD we can use to create our new image
+ * on top of.
+ */
+ if (backup->sync == MIRROR_SYNC_MODE_TOP) {
+ source = backing_bs(bs);
+ if (!source) {
+ backup->sync = MIRROR_SYNC_MODE_FULL;
+ }
+ }
+ if (backup->sync == MIRROR_SYNC_MODE_NONE) {
+ source = bs;
+ flags |= BDRV_O_NO_BACKING;
+ set_backing_hd = true;
+ }
+
+ size = bdrv_getlength(bs);
+ if (size < 0) {
+ error_setg_errno(errp, -size, "bdrv_getlength failed");
+ goto out;
+ }
+
+ if (backup->mode != NEW_IMAGE_MODE_EXISTING) {
+ assert(backup->format);
+ if (source) {
+ bdrv_refresh_filename(source);
+ bdrv_img_create(backup->target, backup->format, source->filename,
+ source->drv->format_name, NULL,
+ size, flags, false, &local_err);
+ } else {
+ bdrv_img_create(backup->target, backup->format, NULL, NULL, NULL,
+ size, flags, false, &local_err);
+ }
+ }
- state->job = do_drive_backup(backup, common->block_job_txn, &local_err);
if (local_err) {
error_propagate(errp, local_err);
goto out;
}
+ options = qdict_new();
+ qdict_put_str(options, "discard", "unmap");
+ qdict_put_str(options, "detect-zeroes", "unmap");
+ if (backup->format) {
+ qdict_put_str(options, "driver", backup->format);
+ }
+
+ target_bs = bdrv_open(backup->target, NULL, options, flags, errp);
+ if (!target_bs) {
+ goto out;
+ }
+
+ if (set_backing_hd) {
+ bdrv_set_backing_hd(target_bs, source, &local_err);
+ if (local_err) {
+ goto unref;
+ }
+ }
+
+ state->bs = bs;
+
+ state->job = do_backup_common(qapi_DriveBackup_base(backup),
+ bs, target_bs, aio_context,
+ common->block_job_txn, errp);
+
+unref:
+ bdrv_unref(target_bs);
out:
aio_context_release(aio_context);
}
@@ -3587,126 +3676,13 @@ static BlockJob *do_backup_common(BackupCommon *backup,
return job;
}
-static BlockJob *do_drive_backup(DriveBackup *backup, JobTxn *txn,
- Error **errp)
-{
- BlockDriverState *bs;
- BlockDriverState *target_bs;
- BlockDriverState *source = NULL;
- BlockJob *job = NULL;
- AioContext *aio_context;
- QDict *options;
- Error *local_err = NULL;
- int flags;
- int64_t size;
- bool set_backing_hd = false;
-
- if (!backup->has_mode) {
- backup->mode = NEW_IMAGE_MODE_ABSOLUTE_PATHS;
- }
-
- bs = bdrv_lookup_bs(backup->device, backup->device, errp);
- if (!bs) {
- return NULL;
- }
-
- if (!bs->drv) {
- error_setg(errp, "Device has no medium");
- return NULL;
- }
-
- aio_context = bdrv_get_aio_context(bs);
- aio_context_acquire(aio_context);
-
- if (!backup->has_format) {
- backup->format = backup->mode == NEW_IMAGE_MODE_EXISTING ?
- NULL : (char *) bs->drv->format_name;
- }
-
- /* Early check to avoid creating target */
- if (bdrv_op_is_blocked(bs, BLOCK_OP_TYPE_BACKUP_SOURCE, errp)) {
- goto out;
- }
-
- flags = bs->open_flags | BDRV_O_RDWR;
-
- /*
- * See if we have a backing HD we can use to create our new image
- * on top of.
- */
- if (backup->sync == MIRROR_SYNC_MODE_TOP) {
- source = backing_bs(bs);
- if (!source) {
- backup->sync = MIRROR_SYNC_MODE_FULL;
- }
- }
- if (backup->sync == MIRROR_SYNC_MODE_NONE) {
- source = bs;
- flags |= BDRV_O_NO_BACKING;
- set_backing_hd = true;
- }
-
- size = bdrv_getlength(bs);
- if (size < 0) {
- error_setg_errno(errp, -size, "bdrv_getlength failed");
- goto out;
- }
-
- if (backup->mode != NEW_IMAGE_MODE_EXISTING) {
- assert(backup->format);
- if (source) {
- bdrv_refresh_filename(source);
- bdrv_img_create(backup->target, backup->format, source->filename,
- source->drv->format_name, NULL,
- size, flags, false, &local_err);
- } else {
- bdrv_img_create(backup->target, backup->format, NULL, NULL, NULL,
- size, flags, false, &local_err);
- }
- }
-
- if (local_err) {
- error_propagate(errp, local_err);
- goto out;
- }
-
- options = qdict_new();
- qdict_put_str(options, "discard", "unmap");
- qdict_put_str(options, "detect-zeroes", "unmap");
- if (backup->format) {
- qdict_put_str(options, "driver", backup->format);
- }
-
- target_bs = bdrv_open(backup->target, NULL, options, flags, errp);
- if (!target_bs) {
- goto out;
- }
-
- if (set_backing_hd) {
- bdrv_set_backing_hd(target_bs, source, &local_err);
- if (local_err) {
- goto unref;
- }
- }
-
- job = do_backup_common(qapi_DriveBackup_base(backup),
- bs, target_bs, aio_context, txn, errp);
-
-unref:
- bdrv_unref(target_bs);
-out:
- aio_context_release(aio_context);
- return job;
-}
-
-void qmp_drive_backup(DriveBackup *arg, Error **errp)
+void qmp_drive_backup(DriveBackup *backup, Error **errp)
{
-
- BlockJob *job;
- job = do_drive_backup(arg, NULL, errp);
- if (job) {
- job_start(&job->job);
- }
+ TransactionAction action = {
+ .type = TRANSACTION_ACTION_KIND_DRIVE_BACKUP,
+ .u.drive_backup.data = backup,
+ };
+ blockdev_do_action(&action, errp);
}
BlockDeviceInfoList *qmp_query_named_block_nodes(Error **errp)
diff --git a/tests/qemu-iotests/141.out b/tests/qemu-iotests/141.out
index 3645675..263b680 100644
--- a/tests/qemu-iotests/141.out
+++ b/tests/qemu-iotests/141.out
@@ -13,6 +13,8 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/m.
Formatting 'TEST_DIR/o.IMGFMT', fmt=IMGFMT size=1048576 backing_file=TEST_DIR/t.IMGFMT backing_fmt=IMGFMT
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "job0"}}
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "job0"}}
+{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "paused", "id": "job0"}}
+{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "job0"}}
{'execute': 'blockdev-del', 'arguments': {'node-name': 'drv0'}}
{"error": {"class": "GenericError", "desc": "Node 'drv0' is busy: node is used as backing hd of 'NODE_NAME'"}}
{'execute': 'block-job-cancel', 'arguments': {'device': 'job0'}}
diff --git a/tests/qemu-iotests/185.out b/tests/qemu-iotests/185.out
index 8379ac5..9a3b657 100644
--- a/tests/qemu-iotests/185.out
+++ b/tests/qemu-iotests/185.out
@@ -65,6 +65,8 @@ Formatting 'TEST_DIR/t.qcow2.copy', fmt=qcow2 size=67108864 cluster_size=65536 l
Formatting 'TEST_DIR/t.qcow2.copy', fmt=qcow2 size=67108864 cluster_size=65536 lazy_refcounts=off refcount_bits=16
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "created", "id": "disk"}}
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "disk"}}
+{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "paused", "id": "disk"}}
+{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "JOB_STATUS_CHANGE", "data": {"status": "running", "id": "disk"}}
{"return": {}}
{ 'execute': 'quit' }
{"return": {}}
diff --git a/tests/qemu-iotests/219 b/tests/qemu-iotests/219
index e0c5166..655f54d 100755
--- a/tests/qemu-iotests/219
+++ b/tests/qemu-iotests/219
@@ -63,7 +63,7 @@ def test_pause_resume(vm):
# logged immediately
iotests.log(vm.qmp('query-jobs'))
-def test_job_lifecycle(vm, job, job_args, has_ready=False):
+def test_job_lifecycle(vm, job, job_args, has_ready=False, is_mirror=False):
global img_size
iotests.log('')
@@ -135,6 +135,9 @@ def test_job_lifecycle(vm, job, job_args, has_ready=False):
iotests.log('Waiting for PENDING state...')
iotests.log(iotests.filter_qmp_event(vm.event_wait('JOB_STATUS_CHANGE')))
iotests.log(iotests.filter_qmp_event(vm.event_wait('JOB_STATUS_CHANGE')))
+ if is_mirror:
+ iotests.log(iotests.filter_qmp_event(vm.event_wait('JOB_STATUS_CHANGE')))
+ iotests.log(iotests.filter_qmp_event(vm.event_wait('JOB_STATUS_CHANGE')))
if not job_args.get('auto-finalize', True):
# PENDING state:
@@ -218,7 +221,7 @@ with iotests.FilePath('disk.img') as disk_path, \
for auto_finalize in [True, False]:
for auto_dismiss in [True, False]:
- test_job_lifecycle(vm, 'drive-backup', job_args={
+ test_job_lifecycle(vm, 'drive-backup', is_mirror=True, job_args={
'device': 'drive0-node',
'target': copy_path,
'sync': 'full',
diff --git a/tests/qemu-iotests/219.out b/tests/qemu-iotests/219.out
index 8ebd3fe..0ea5d0b 100644
--- a/tests/qemu-iotests/219.out
+++ b/tests/qemu-iotests/219.out
@@ -135,6 +135,8 @@ Pause/resume in RUNNING
{"return": {}}
Waiting for PENDING state...
+{"data": {"id": "job0", "status": "paused"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
+{"data": {"id": "job0", "status": "running"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"data": {"id": "job0", "status": "waiting"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"data": {"id": "job0", "status": "pending"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"data": {"id": "job0", "status": "concluded"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
@@ -186,6 +188,8 @@ Pause/resume in RUNNING
{"return": {}}
Waiting for PENDING state...
+{"data": {"id": "job0", "status": "paused"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
+{"data": {"id": "job0", "status": "running"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"data": {"id": "job0", "status": "waiting"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"data": {"id": "job0", "status": "pending"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"data": {"id": "job0", "status": "concluded"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
@@ -245,6 +249,8 @@ Pause/resume in RUNNING
{"return": {}}
Waiting for PENDING state...
+{"data": {"id": "job0", "status": "paused"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
+{"data": {"id": "job0", "status": "running"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"data": {"id": "job0", "status": "waiting"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"data": {"id": "job0", "status": "pending"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"return": [{"current-progress": 4194304, "id": "job0", "status": "pending", "total-progress": 4194304, "type": "backup"}]}
@@ -304,6 +310,8 @@ Pause/resume in RUNNING
{"return": {}}
Waiting for PENDING state...
+{"data": {"id": "job0", "status": "paused"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
+{"data": {"id": "job0", "status": "running"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"data": {"id": "job0", "status": "waiting"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"data": {"id": "job0", "status": "pending"}, "event": "JOB_STATUS_CHANGE", "timestamp": {"microseconds": "USECS", "seconds": "SECS"}}
{"return": [{"current-progress": 4194304, "id": "job0", "status": "pending", "total-progress": 4194304, "type": "backup"}]}
--
1.8.3.1

137
SOURCES/kvm-build-rename-CONFIG_LIBCAP-to-CONFIG_LIBCAP_NG.patch Normal file
View File

@ -0,0 +1,137 @@
From f756c1c4590a37c533ec0429644a7034ba35dada Mon Sep 17 00:00:00 2001
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Date: Mon, 27 Jan 2020 19:00:38 +0100
Subject: [PATCH 007/116] build: rename CONFIG_LIBCAP to CONFIG_LIBCAP_NG
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: <20200127190227.40942-4-dgilbert@redhat.com>
Patchwork-id: 93459
O-Subject: [RHEL-AV-8.2 qemu-kvm PATCH 003/112] build: rename CONFIG_LIBCAP to CONFIG_LIBCAP_NG
Bugzilla: 1694164
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
From: Paolo Bonzini <pbonzini@redhat.com>
Since we are actually testing for the newer capng library, rename the
symbol to match.
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
(cherry picked from commit a358bca24026a377e0804e137a4499e4e041918d)
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
configure | 2 +-
qemu-bridge-helper.c | 6 +++---
scsi/qemu-pr-helper.c | 12 ++++++------
3 files changed, 10 insertions(+), 10 deletions(-)
diff --git a/configure b/configure
index 16564f8..7831618 100755
--- a/configure
+++ b/configure
@@ -6760,7 +6760,7 @@ if test "$l2tpv3" = "yes" ; then
echo "CONFIG_L2TPV3=y" >> $config_host_mak
fi
if test "$cap_ng" = "yes" ; then
- echo "CONFIG_LIBCAP=y" >> $config_host_mak
+ echo "CONFIG_LIBCAP_NG=y" >> $config_host_mak
fi
echo "CONFIG_AUDIO_DRIVERS=$audio_drv_list" >> $config_host_mak
for drv in $audio_drv_list; do
diff --git a/qemu-bridge-helper.c b/qemu-bridge-helper.c
index 3d50ec0..88b2674 100644
--- a/qemu-bridge-helper.c
+++ b/qemu-bridge-helper.c
@@ -43,7 +43,7 @@
#include "net/tap-linux.h"
-#ifdef CONFIG_LIBCAP
+#ifdef CONFIG_LIBCAP_NG
#include <cap-ng.h>
#endif
@@ -207,7 +207,7 @@ static int send_fd(int c, int fd)
return sendmsg(c, &msg, 0);
}
-#ifdef CONFIG_LIBCAP
+#ifdef CONFIG_LIBCAP_NG
static int drop_privileges(void)
{
/* clear all capabilities */
@@ -246,7 +246,7 @@ int main(int argc, char **argv)
int access_allowed, access_denied;
int ret = EXIT_SUCCESS;
-#ifdef CONFIG_LIBCAP
+#ifdef CONFIG_LIBCAP_NG
/* if we're run from an suid binary, immediately drop privileges preserving
* cap_net_admin */
if (geteuid() == 0 && getuid() != geteuid()) {
diff --git a/scsi/qemu-pr-helper.c b/scsi/qemu-pr-helper.c
index debb18f..0659cee 100644
--- a/scsi/qemu-pr-helper.c
+++ b/scsi/qemu-pr-helper.c
@@ -24,7 +24,7 @@
#include <linux/dm-ioctl.h>
#include <scsi/sg.h>
-#ifdef CONFIG_LIBCAP
+#ifdef CONFIG_LIBCAP_NG
#include <cap-ng.h>
#endif
#include <pwd.h>
@@ -70,7 +70,7 @@ static int num_active_sockets = 1;
static int noisy;
static int verbose;
-#ifdef CONFIG_LIBCAP
+#ifdef CONFIG_LIBCAP_NG
static int uid = -1;
static int gid = -1;
#endif
@@ -97,7 +97,7 @@ static void usage(const char *name)
" (default '%s')\n"
" -T, --trace [[enable=]<pattern>][,events=<file>][,file=<file>]\n"
" specify tracing options\n"
-#ifdef CONFIG_LIBCAP
+#ifdef CONFIG_LIBCAP_NG
" -u, --user=USER user to drop privileges to\n"
" -g, --group=GROUP group to drop privileges to\n"
#endif
@@ -827,7 +827,7 @@ static void close_server_socket(void)
num_active_sockets--;
}
-#ifdef CONFIG_LIBCAP
+#ifdef CONFIG_LIBCAP_NG
static int drop_privileges(void)
{
/* clear all capabilities */
@@ -920,7 +920,7 @@ int main(int argc, char **argv)
pidfile = g_strdup(optarg);
pidfile_specified = true;
break;
-#ifdef CONFIG_LIBCAP
+#ifdef CONFIG_LIBCAP_NG
case 'u': {
unsigned long res;
struct passwd *userinfo = getpwnam(optarg);
@@ -1056,7 +1056,7 @@ int main(int argc, char **argv)
exit(EXIT_FAILURE);
}
-#ifdef CONFIG_LIBCAP
+#ifdef CONFIG_LIBCAP_NG
if (drop_privileges() < 0) {
error_report("Failed to drop privileges: %s", strerror(errno));
exit(EXIT_FAILURE);
--
1.8.3.1

2463
SOURCES/kvm-build-sys-do-not-make-qemu-ga-link-with-pixman.patch Normal file
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File diff suppressed because it is too large Load Diff

50
SOURCES/kvm-compat-disable-edid-for-virtio-gpu-ccw.patch Normal file
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@ -0,0 +1,50 @@
From 8f9f4d8d52ebb7878543ac0b84cc372477041e33 Mon Sep 17 00:00:00 2001
From: Cornelia Huck <cohuck@redhat.com>
Date: Wed, 1 Apr 2020 16:13:50 -0400
Subject: [PATCH 2/2] compat: disable 'edid' for virtio-gpu-ccw
RH-Author: Cornelia Huck <cohuck@redhat.com>
Message-id: <20200401161350.20462-1-cohuck@redhat.com>
Patchwork-id: 94523
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH v2] compat: disable 'edid' for virtio-gpu-ccw
Bugzilla: 1816793
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Markus Armbruster <armbru@redhat.com>
RH-Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1816793
Branch: rhel-av-8.2.1
Brew: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=27629804
Upstream: downstream only
Tested: verified that for a virtio-gpu-ccw device 'edid' is false with
a s390-ccw-virtio-rhel7.6.0 machine and true with a
s390-ccw-virtio-rhel8.2.0 (s390x does not have the 8.0 or 8.1
machine types)
hw_compat_rhel_8_0 copied the original upstream version of
disabling 'edid' for virtio-gpu-pci only (not following later
changes). Switch it to virtio-gpu-device, following upstream
02501fc39381 ("compat: disable edid on correct virtio-gpu device").
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Jon Maloy <jmaloy.redhat.com>
---
hw/core/machine.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/hw/core/machine.c b/hw/core/machine.c
index e0e0eec8bf..5a025d1af2 100644
--- a/hw/core/machine.c
+++ b/hw/core/machine.c
@@ -72,7 +72,7 @@ GlobalProperty hw_compat_rhel_8_0[] = {
/* hw_compat_rhel_8_0 from hw_compat_4_0 */
{ "virtio-vga", "edid", "false" },
/* hw_compat_rhel_8_0 from hw_compat_4_0 */
- { "virtio-gpu-pci", "edid", "false" },
+ { "virtio-gpu-device", "edid", "false" },
/* hw_compat_rhel_8_0 from hw_compat_4_0 */
{ "virtio-device", "use-started", "false" },
/* hw_compat_rhel_8_0 from hw_compat_3_1 - that was added in 4.1 */
--
2.18.2

39
SOURCES/kvm-config-enable-VFIO_CCW.patch Normal file
View File

@ -0,0 +1,39 @@
From f3e80771c921560a58c30020781fa01a54be8eb0 Mon Sep 17 00:00:00 2001
From: Cornelia Huck <cohuck@redhat.com>
Date: Tue, 23 Jun 2020 09:25:43 -0400
Subject: [PATCH 09/12] config: enable VFIO_CCW
RH-Author: Cornelia Huck <cohuck@redhat.com>
Message-id: <20200623092543.358315-10-cohuck@redhat.com>
Patchwork-id: 97699
O-Subject: [RHEL-8.3.0 qemu-kvm PATCH 9/9] config: enable VFIO_CCW
Bugzilla: 1660916
RH-Acked-by: Claudio Imbrenda <cimbrend@redhat.com>
RH-Acked-by: David Hildenbrand <david@redhat.com>
RH-Acked-by: Thomas Huth <thuth@redhat.com>
Enable vfio-ccw in RHEL builds.
Upstream: n/a
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
default-configs/s390x-rh-devices.mak | 1 +
1 file changed, 1 insertion(+)
diff --git a/default-configs/s390x-rh-devices.mak b/default-configs/s390x-rh-devices.mak
index c3c73fe752..08a15f3e01 100644
--- a/default-configs/s390x-rh-devices.mak
+++ b/default-configs/s390x-rh-devices.mak
@@ -9,6 +9,7 @@ CONFIG_SCSI=y
CONFIG_TERMINAL3270=y
CONFIG_VFIO=y
CONFIG_VFIO_AP=y
+CONFIG_VFIO_CCW=y
CONFIG_VFIO_PCI=y
CONFIG_VHOST_USER=y
CONFIG_VIRTIO_CCW=y
--
2.27.0

134
SOURCES/kvm-contrib-libvhost-user-Protect-slave-fd-with-mutex.patch Normal file
View File

@ -0,0 +1,134 @@
From 548de8acbf0137b6e49a14b63682badfff037d23 Mon Sep 17 00:00:00 2001
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Date: Mon, 27 Jan 2020 19:01:44 +0100
Subject: [PATCH 073/116] contrib/libvhost-user: Protect slave fd with mutex
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: <20200127190227.40942-70-dgilbert@redhat.com>
Patchwork-id: 93523
O-Subject: [RHEL-AV-8.2 qemu-kvm PATCH 069/112] contrib/libvhost-user: Protect slave fd with mutex
Bugzilla: 1694164
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
In future patches we'll be performing commands on the slave-fd driven
by commands on queues, since those queues will be driven by individual
threads we need to make sure they don't attempt to use the slave-fd
for multiple commands in parallel.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
(cherry picked from commit c25c02b9e6a196be87a818f459c426556b24770d)
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
contrib/libvhost-user/libvhost-user.c | 24 ++++++++++++++++++++----
contrib/libvhost-user/libvhost-user.h | 3 +++
2 files changed, 23 insertions(+), 4 deletions(-)
diff --git a/contrib/libvhost-user/libvhost-user.c b/contrib/libvhost-user/libvhost-user.c
index ec27b78..63e4106 100644
--- a/contrib/libvhost-user/libvhost-user.c
+++ b/contrib/libvhost-user/libvhost-user.c
@@ -392,26 +392,37 @@ vu_send_reply(VuDev *dev, int conn_fd, VhostUserMsg *vmsg)
return vu_message_write(dev, conn_fd, vmsg);
}
+/*
+ * Processes a reply on the slave channel.
+ * Entered with slave_mutex held and releases it before exit.
+ * Returns true on success.
+ */
static bool
vu_process_message_reply(VuDev *dev, const VhostUserMsg *vmsg)
{
VhostUserMsg msg_reply;
+ bool result = false;
if ((vmsg->flags & VHOST_USER_NEED_REPLY_MASK) == 0) {
- return true;
+ result = true;
+ goto out;
}
if (!vu_message_read(dev, dev->slave_fd, &msg_reply)) {
- return false;
+ goto out;
}
if (msg_reply.request != vmsg->request) {
DPRINT("Received unexpected msg type. Expected %d received %d",
vmsg->request, msg_reply.request);
- return false;
+ goto out;
}
- return msg_reply.payload.u64 == 0;
+ result = msg_reply.payload.u64 == 0;
+
+out:
+ pthread_mutex_unlock(&dev->slave_mutex);
+ return result;
}
/* Kick the log_call_fd if required. */
@@ -1105,10 +1116,13 @@ bool vu_set_queue_host_notifier(VuDev *dev, VuVirtq *vq, int fd,
return false;
}
+ pthread_mutex_lock(&dev->slave_mutex);
if (!vu_message_write(dev, dev->slave_fd, &vmsg)) {
+ pthread_mutex_unlock(&dev->slave_mutex);
return false;
}
+ /* Also unlocks the slave_mutex */
return vu_process_message_reply(dev, &vmsg);
}
@@ -1628,6 +1642,7 @@ vu_deinit(VuDev *dev)
close(dev->slave_fd);
dev->slave_fd = -1;
}
+ pthread_mutex_destroy(&dev->slave_mutex);
if (dev->sock != -1) {
close(dev->sock);
@@ -1663,6 +1678,7 @@ vu_init(VuDev *dev,
dev->remove_watch = remove_watch;
dev->iface = iface;
dev->log_call_fd = -1;
+ pthread_mutex_init(&dev->slave_mutex, NULL);
dev->slave_fd = -1;
dev->max_queues = max_queues;
diff --git a/contrib/libvhost-user/libvhost-user.h b/contrib/libvhost-user/libvhost-user.h
index 46b6007..1844b6f 100644
--- a/contrib/libvhost-user/libvhost-user.h
+++ b/contrib/libvhost-user/libvhost-user.h
@@ -19,6 +19,7 @@
#include <stddef.h>
#include <sys/poll.h>
#include <linux/vhost.h>
+#include <pthread.h>
#include "standard-headers/linux/virtio_ring.h"
/* Based on qemu/hw/virtio/vhost-user.c */
@@ -355,6 +356,8 @@ struct VuDev {
VuVirtq *vq;
VuDevInflightInfo inflight_info;
int log_call_fd;
+ /* Must be held while using slave_fd */
+ pthread_mutex_t slave_mutex;
int slave_fd;
uint64_t log_size;
uint8_t *log_table;
--
1.8.3.1

98
SOURCES/kvm-crypto.c-cleanup-created-file-when-block_crypto_co_c.patch Normal file
View File

@ -0,0 +1,98 @@
From 043decff5812c1f46ed44dd0f82099e3b8bb6a28 Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <mlevitsk@redhat.com>
Date: Sun, 31 May 2020 16:40:35 +0100
Subject: [PATCH 7/7] crypto.c: cleanup created file when
block_crypto_co_create_opts_luks fails
RH-Author: Maxim Levitsky <mlevitsk@redhat.com>
Message-id: <20200531164035.34188-4-mlevitsk@redhat.com>
Patchwork-id: 97060
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 3/3] crypto.c: cleanup created file when block_crypto_co_create_opts_luks fails
Bugzilla: 1827630
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
RH-Acked-by: John Snow <jsnow@redhat.com>
RH-Acked-by: Eric Blake <eblake@redhat.com>
From: Daniel Henrique Barboza <danielhb413@gmail.com>
When using a non-UTF8 secret to create a volume using qemu-img, the
following error happens:
$ qemu-img create -f luks --object secret,id=vol_1_encrypt0,file=vol_resize_pool.vol_1.secret.qzVQrI -o key-secret=vol_1_encrypt0 /var/tmp/pool_target/vol_1 10240K
Formatting '/var/tmp/pool_target/vol_1', fmt=luks size=10485760 key-secret=vol_1_encrypt0
qemu-img: /var/tmp/pool_target/vol_1: Data from secret vol_1_encrypt0 is not valid UTF-8
However, the created file '/var/tmp/pool_target/vol_1' is left behind in the
file system after the failure. This behavior can be observed when creating
the volume using Libvirt, via 'virsh vol-create', and then getting "volume
target path already exist" errors when trying to re-create the volume.
The volume file is created inside block_crypto_co_create_opts_luks(), in
block/crypto.c. If the bdrv_create_file() call is successful but any
succeeding step fails*, the existing 'fail' label does not take into
account the created file, leaving it behind.
This patch changes block_crypto_co_create_opts_luks() to delete
'filename' in case of failure. A failure in this point means that
the volume is now truncated/corrupted, so even if 'filename' was an
existing volume before calling qemu-img, it is now unusable. Deleting
the file it is not much worse than leaving it in the filesystem in
this scenario, and we don't have to deal with checking the file
pre-existence in the code.
* in our case, block_crypto_co_create_generic calls qcrypto_block_create,
which calls qcrypto_block_luks_create, and this function fails when
calling qcrypto_secret_lookup_as_utf8.
Reported-by: Srikanth Aithal <bssrikanth@in.ibm.com>
Suggested-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20200130213907.2830642-4-danielhb413@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 1bba30da24e1124ceeb0693c81382a0d77e20ca5)
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/crypto.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/block/crypto.c b/block/crypto.c
index 970d463..5e3b15c 100644
--- a/block/crypto.c
+++ b/block/crypto.c
@@ -30,6 +30,7 @@
#include "qapi/error.h"
#include "qemu/module.h"
#include "qemu/option.h"
+#include "qemu/cutils.h"
#include "crypto.h"
typedef struct BlockCrypto BlockCrypto;
@@ -597,6 +598,23 @@ static int coroutine_fn block_crypto_co_create_opts_luks(BlockDriver *drv,
ret = 0;
fail:
+ /*
+ * If an error occurred, delete 'filename'. Even if the file existed
+ * beforehand, it has been truncated and corrupted in the process.
+ */
+ if (ret && bs) {
+ Error *local_delete_err = NULL;
+ int r_del = bdrv_co_delete_file(bs, &local_delete_err);
+ /*
+ * ENOTSUP will happen if the block driver doesn't support
+ * the 'bdrv_co_delete_file' interface. This is a predictable
+ * scenario and shouldn't be reported back to the user.
+ */
+ if ((r_del < 0) && (r_del != -ENOTSUP)) {
+ error_report_err(local_delete_err);
+ }
+ }
+
bdrv_unref(bs);
qapi_free_QCryptoBlockCreateOptions(create_opts);
qobject_unref(cryptoopts);
--
1.8.3.1

56
SOURCES/kvm-docs-arm-cpu-features-Make-kvm-no-adjvtime-comment-c.patch Normal file
View File

@ -0,0 +1,56 @@
From f01178897c8f5ff98692a22059dd65e35677eaa3 Mon Sep 17 00:00:00 2001
From: Andrew Jones <drjones@redhat.com>
Date: Mon, 10 Feb 2020 17:33:58 +0000
Subject: [PATCH 18/18] docs/arm-cpu-features: Make kvm-no-adjvtime comment
clearer
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Andrew Jones <drjones@redhat.com>
Message-id: <20200210173358.16896-3-drjones@redhat.com>
Patchwork-id: 93772
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 2/2] docs/arm-cpu-features: Make kvm-no-adjvtime comment clearer
Bugzilla: 1801320
RH-Acked-by: Auger Eric <eric.auger@redhat.com>
RH-Acked-by: Gavin Shan <gshan@redhat.com>
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1801320
Author: Philippe Mathieu-Daudé <philmd@redhat.com>
Date: Fri, 07 Feb 2020 14:04:28 +0000
docs/arm-cpu-features: Make kvm-no-adjvtime comment clearer
The bold text sounds like 'knock knock'. Only bolding the
second 'not' makes it easier to read.
Fixes: dea101a1ae
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 20200206225148.23923-1-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
(cherry picked from commit fa3236a970b6ea5be3fa3ad258f1a75920ca1ebb)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
docs/arm-cpu-features.rst | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/docs/arm-cpu-features.rst b/docs/arm-cpu-features.rst
index 45d1eb6..48d5054 100644
--- a/docs/arm-cpu-features.rst
+++ b/docs/arm-cpu-features.rst
@@ -185,7 +185,7 @@ the list of KVM VCPU features and their descriptions.
kvm-no-adjvtime By default kvm-no-adjvtime is disabled. This
means that by default the virtual time
- adjustment is enabled (vtime is *not not*
+ adjustment is enabled (vtime is not *not*
adjusted).
When virtual time adjustment is enabled each
--
1.8.3.1

72
SOURCES/kvm-enable-ramfb.patch Normal file
View File

@ -0,0 +1,72 @@
From 441128e2f13a56d4949b70971edd2f6902772959 Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Wed, 3 Jun 2020 15:15:56 +0100
Subject: [PATCH 01/17] enable ramfb
RH-Author: Gerd Hoffmann <kraxel@redhat.com>
Message-id: <20200603151556.1195-2-kraxel@redhat.com>
Patchwork-id: 97097
O-Subject: [RHEL-AV-8.2.0.z qemu-kvm PATCH 1/1] enable ramfb
Bugzilla: 1841068
RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
---
hw/vfio/pci.c | 5 -----
hw/display/Makefile.objs | 5 ++---
2 files changed, 2 insertions(+), 8 deletions(-)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/display/Makefile.objs | 5 ++---
hw/vfio/pci.c | 5 -----
2 files changed, 2 insertions(+), 8 deletions(-)
diff --git a/hw/display/Makefile.objs b/hw/display/Makefile.objs
index 3d0cda1..f2182e3 100644
--- a/hw/display/Makefile.objs
+++ b/hw/display/Makefile.objs
@@ -1,9 +1,8 @@
common-obj-$(CONFIG_DDC) += i2c-ddc.o
common-obj-$(CONFIG_EDID) += edid-generate.o edid-region.o
-# Disabled for Red Hat Enterprise Linux
-#common-obj-$(CONFIG_FW_CFG_DMA) += ramfb.o
-#common-obj-$(CONFIG_FW_CFG_DMA) += ramfb-standalone.o
+common-obj-$(CONFIG_FW_CFG_DMA) += ramfb.o
+common-obj-$(CONFIG_FW_CFG_DMA) += ramfb-standalone.o
common-obj-$(CONFIG_ADS7846) += ads7846.o
common-obj-$(CONFIG_VGA_CIRRUS) += cirrus_vga.o
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index d717520..f191904 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -3249,7 +3249,6 @@ static const TypeInfo vfio_pci_dev_info = {
},
};
-#if 0 /* Disabled for Red Hat Enterprise Linux */
static Property vfio_pci_dev_nohotplug_properties[] = {
DEFINE_PROP_BOOL("ramfb", VFIOPCIDevice, enable_ramfb, false),
DEFINE_PROP_END_OF_LIST(),
@@ -3269,15 +3268,11 @@ static const TypeInfo vfio_pci_nohotplug_dev_info = {
.instance_size = sizeof(VFIOPCIDevice),
.class_init = vfio_pci_nohotplug_dev_class_init,
};
-#endif
static void register_vfio_pci_dev_type(void)
{
type_register_static(&vfio_pci_dev_info);
-
-#if 0 /* Disabled for Red Hat Enterprise Linux */
type_register_static(&vfio_pci_nohotplug_dev_info);
-#endif
}
type_init(register_vfio_pci_dev_type)
--
1.8.3.1

156
SOURCES/kvm-error-Document-Error-API-usage-rules.patch Normal file
View File

@ -0,0 +1,156 @@
From d931195ef5cccd6a4e6fceeba37809b1712c97ad Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@redhat.com>
Date: Fri, 8 Jan 2021 07:40:55 -0500
Subject: [PATCH 04/10] error: Document Error API usage rules
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: <20210108074101.290008-5-marcandre.lureau@redhat.com>
Patchwork-id: 100523
O-Subject: [RHEL-8.3.0.z qemu-kvm PATCH 04/10] error: Document Error API usage rules
Bugzilla: 1913818
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
From: Marc-André Lureau <marcandre.lureau@redhat.com>
From: Markus Armbruster <armbru@redhat.com>
This merely codifies existing practice, with one exception: the rule
advising against returning void, where existing practice is mixed.
When the Error API was created, we adopted the (unwritten) rule to
return void when the function returns no useful value on success,
unlike GError, which recommends to return true on success and false on
error then.
When a function returns a distinct error value, say false, a checked
call that passes the error up looks like
if (!frobnicate(..., errp)) {
handle the error...
}
When it returns void, we need
Error *err = NULL;
frobnicate(..., &err);
if (err) {
handle the error...
error_propagate(errp, err);
}
Not only is this more verbose, it also creates an Error object even
when @errp is null, &error_abort or &error_fatal.
People got tired of the additional boilerplate, and started to ignore
the unwritten rule. The result is confusion among developers about
the preferred usage.
Make the rule advising against returning void official by putting it
in writing. This will hopefully reduce confusion.
Update the examples accordingly.
The remainder of this series will update a substantial amount of code
to honor the rule.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200707160613.848843-4-armbru@redhat.com>
(cherry picked from commit e3fe3988d7851cac30abffae06d2f555ff7bee62)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
include/qapi/error.h | 52 +++++++++++++++++++++++++++++++++++++++-----
1 file changed, 46 insertions(+), 6 deletions(-)
diff --git a/include/qapi/error.h b/include/qapi/error.h
index 3351fe76368..08d48e74836 100644
--- a/include/qapi/error.h
+++ b/include/qapi/error.h
@@ -15,6 +15,33 @@
/*
* Error reporting system loosely patterned after Glib's GError.
*
+ * = Rules =
+ *
+ * - Functions that use Error to report errors have an Error **errp
+ * parameter. It should be the last parameter, except for functions
+ * taking variable arguments.
+ *
+ * - You may pass NULL to not receive the error, &error_abort to abort
+ * on error, &error_fatal to exit(1) on error, or a pointer to a
+ * variable containing NULL to receive the error.
+ *
+ * - Separation of concerns: the function is responsible for detecting
+ * errors and failing cleanly; handling the error is its caller's
+ * job. Since the value of @errp is about handling the error, the
+ * function should not examine it.
+ *
+ * - On success, the function should not touch *errp. On failure, it
+ * should set a new error, e.g. with error_setg(errp, ...), or
+ * propagate an existing one, e.g. with error_propagate(errp, ...).
+ *
+ * - Whenever practical, also return a value that indicates success /
+ * failure. This can make the error checking more concise, and can
+ * avoid useless error object creation and destruction. Note that
+ * we still have many functions returning void. We recommend
+ * • bool-valued functions return true on success / false on failure,
+ * • pointer-valued functions return non-null / null pointer, and
+ * • integer-valued functions return non-negative / negative.
+ *
* = Creating errors =
*
* Create an error:
@@ -95,14 +122,13 @@
* Create a new error and pass it to the caller:
* error_setg(errp, "situation normal, all fouled up");
*
- * Call a function and receive an error from it:
- * Error *err = NULL;
- * foo(arg, &err);
- * if (err) {
+ * Call a function, receive an error from it, and pass it to the caller
+ * - when the function returns a value that indicates failure, say
+ * false:
+ * if (!foo(arg, errp)) {
* handle the error...
* }
- *
- * Receive an error and pass it on to the caller:
+ * - when it does not, say because it is a void function:
* Error *err = NULL;
* foo(arg, &err);
* if (err) {
@@ -120,6 +146,20 @@
* foo(arg, errp);
* for readability.
*
+ * Receive an error, and handle it locally
+ * - when the function returns a value that indicates failure, say
+ * false:
+ * Error *err = NULL;
+ * if (!foo(arg, &err)) {
+ * handle the error...
+ * }
+ * - when it does not, say because it is a void function:
+ * Error *err = NULL;
+ * foo(arg, &err);
+ * if (err) {
+ * handle the error...
+ * }
+ *
* Receive and accumulate multiple errors (first one wins):
* Error *err = NULL, *local_err = NULL;
* foo(arg, &err);
--
2.27.0

87
SOURCES/kvm-error-Fix-examples-in-error.h-s-big-comment.patch Normal file
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@ -0,0 +1,87 @@
From 393a5e9b24947f90cd116c4fb1b2ff4ee200f0df Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@redhat.com>
Date: Fri, 8 Jan 2021 07:40:53 -0500
Subject: [PATCH 02/10] error: Fix examples in error.h's big comment
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: <20210108074101.290008-3-marcandre.lureau@redhat.com>
Patchwork-id: 100521
O-Subject: [RHEL-8.3.0.z qemu-kvm PATCH 02/10] error: Fix examples in error.h's big comment
Bugzilla: 1913818
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
From: Marc-André Lureau <marcandre.lureau@redhat.com>
From: Markus Armbruster <armbru@redhat.com>
Mark a bad example more clearly. Fix the error_propagate_prepend()
example. Add a missing declaration and a second error pileup example.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Message-Id: <20200707160613.848843-2-armbru@redhat.com>
(cherry picked from commit 47ff5ac81e8bb3096500de7b132051691d533d36)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
include/qapi/error.h | 16 ++++++++++++++--
1 file changed, 14 insertions(+), 2 deletions(-)
diff --git a/include/qapi/error.h b/include/qapi/error.h
index 3f95141a01a..83c38f9a188 100644
--- a/include/qapi/error.h
+++ b/include/qapi/error.h
@@ -24,7 +24,7 @@
* "charm, top, bottom.\n");
*
* Do *not* contract this to
- * error_setg(&err, "invalid quark\n"
+ * error_setg(&err, "invalid quark\n" // WRONG!
* "Valid quarks are up, down, strange, charm, top, bottom.");
*
* Report an error to the current monitor if we have one, else stderr:
@@ -52,7 +52,8 @@
* where Error **errp is a parameter, by convention the last one.
*
* Pass an existing error to the caller with the message modified:
- * error_propagate_prepend(errp, err);
+ * error_propagate_prepend(errp, err,
+ * "Could not frobnicate '%s': ", name);
*
* Avoid
* error_propagate(errp, err);
@@ -108,12 +109,23 @@
* }
*
* Do *not* "optimize" this to
+ * Error *err = NULL;
* foo(arg, &err);
* bar(arg, &err); // WRONG!
* if (err) {
* handle the error...
* }
* because this may pass a non-null err to bar().
+ *
+ * Likewise, do *not*
+ * Error *err = NULL;
+ * if (cond1) {
+ * error_setg(&err, ...);
+ * }
+ * if (cond2) {
+ * error_setg(&err, ...); // WRONG!
+ * }
+ * because this may pass a non-null err to error_setg().
*/
#ifndef ERROR_H
--
2.27.0

148
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@ -0,0 +1,148 @@
From b41fc6d57fae80ac2a431bca22862985f003fe88 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@redhat.com>
Date: Fri, 8 Jan 2021 07:40:54 -0500
Subject: [PATCH 03/10] error: Improve error.h's big comment
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: <20210108074101.290008-4-marcandre.lureau@redhat.com>
Patchwork-id: 100522
O-Subject: [RHEL-8.3.0.z qemu-kvm PATCH 03/10] error: Improve error.h's big comment
Bugzilla: 1913818
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
From: Marc-André Lureau <marcandre.lureau@redhat.com>
From: Markus Armbruster <armbru@redhat.com>
Add headlines to the big comment.
Explain examples for NULL, &error_abort and &error_fatal argument
better.
Tweak rationale for error_propagate_prepend().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200707160613.848843-3-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
(cherry picked from commit 9aac7d486cc792191c25c30851f501624b0c2751)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
include/qapi/error.h | 51 +++++++++++++++++++++++++++++++-------------
1 file changed, 36 insertions(+), 15 deletions(-)
diff --git a/include/qapi/error.h b/include/qapi/error.h
index 83c38f9a188..3351fe76368 100644
--- a/include/qapi/error.h
+++ b/include/qapi/error.h
@@ -15,6 +15,8 @@
/*
* Error reporting system loosely patterned after Glib's GError.
*
+ * = Creating errors =
+ *
* Create an error:
* error_setg(&err, "situation normal, all fouled up");
*
@@ -27,6 +29,8 @@
* error_setg(&err, "invalid quark\n" // WRONG!
* "Valid quarks are up, down, strange, charm, top, bottom.");
*
+ * = Reporting and destroying errors =
+ *
* Report an error to the current monitor if we have one, else stderr:
* error_report_err(err);
* This frees the error object.
@@ -40,6 +44,30 @@
* error_free(err);
* Note that this loses hints added with error_append_hint().
*
+ * Call a function ignoring errors:
+ * foo(arg, NULL);
+ * This is more concise than
+ * Error *err = NULL;
+ * foo(arg, &err);
+ * error_free(err); // don't do this
+ *
+ * Call a function aborting on errors:
+ * foo(arg, &error_abort);
+ * This is more concise and fails more nicely than
+ * Error *err = NULL;
+ * foo(arg, &err);
+ * assert(!err); // don't do this
+ *
+ * Call a function treating errors as fatal:
+ * foo(arg, &error_fatal);
+ * This is more concise than
+ * Error *err = NULL;
+ * foo(arg, &err);
+ * if (err) { // don't do this
+ * error_report_err(err);
+ * exit(1);
+ * }
+ *
* Handle an error without reporting it (just for completeness):
* error_free(err);
*
@@ -47,6 +75,11 @@
* reporting it (primarily useful in testsuites):
* error_free_or_abort(&err);
*
+ * = Passing errors around =
+ *
+ * Errors get passed to the caller through the conventional @errp
+ * parameter.
+ *
* Pass an existing error to the caller:
* error_propagate(errp, err);
* where Error **errp is a parameter, by convention the last one.
@@ -54,11 +87,10 @@
* Pass an existing error to the caller with the message modified:
* error_propagate_prepend(errp, err,
* "Could not frobnicate '%s': ", name);
- *
- * Avoid
- * error_propagate(errp, err);
+ * This is more concise than
+ * error_propagate(errp, err); // don't do this
* error_prepend(errp, "Could not frobnicate '%s': ", name);
- * because this fails to prepend when @errp is &error_fatal.
+ * and works even when @errp is &error_fatal.
*
* Create a new error and pass it to the caller:
* error_setg(errp, "situation normal, all fouled up");
@@ -70,15 +102,6 @@
* handle the error...
* }
*
- * Call a function ignoring errors:
- * foo(arg, NULL);
- *
- * Call a function aborting on errors:
- * foo(arg, &error_abort);
- *
- * Call a function treating errors as fatal:
- * foo(arg, &error_fatal);
- *
* Receive an error and pass it on to the caller:
* Error *err = NULL;
* foo(arg, &err);
@@ -86,8 +109,6 @@
* handle the error...
* error_propagate(errp, err);
* }
- * where Error **errp is a parameter, by convention the last one.
- *
* Do *not* "optimize" this to
* foo(arg, errp);
* if (*errp) { // WRONG!
--
2.27.0

307
SOURCES/kvm-error-New-macro-ERRP_GUARD.patch Normal file
View File

@ -0,0 +1,307 @@
From f6ac3d6bab961c31060d722af23beeb50ce5bdde Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= <marcandre.lureau@redhat.com>
Date: Fri, 8 Jan 2021 07:40:56 -0500
Subject: [PATCH 05/10] error: New macro ERRP_GUARD()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: <20210108074101.290008-6-marcandre.lureau@redhat.com>
Patchwork-id: 100524
O-Subject: [RHEL-8.3.0.z qemu-kvm PATCH 05/10] error: New macro ERRP_GUARD()
Bugzilla: 1913818
RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
From: Marc-André Lureau <marcandre.lureau@redhat.com>
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Introduce a new ERRP_GUARD() macro, to be used at start of functions
with an errp OUT parameter.
It has three goals:
1. Fix issue with error_fatal and error_prepend/error_append_hint: the
user can't see this additional information, because exit() happens in
error_setg earlier than information is added. [Reported by Greg Kurz]
2. Fix issue with error_abort and error_propagate: when we wrap
error_abort by local_err+error_propagate, the resulting coredump will
refer to error_propagate and not to the place where error happened.
(the macro itself doesn't fix the issue, but it allows us to [3.] drop
the local_err+error_propagate pattern, which will definitely fix the
issue) [Reported by Kevin Wolf]
3. Drop local_err+error_propagate pattern, which is used to workaround
void functions with errp parameter, when caller wants to know resulting
status. (Note: actually these functions could be merely updated to
return int error code).
To achieve these goals, later patches will add invocations
of this macro at the start of functions with either use
error_prepend/error_append_hint (solving 1) or which use
local_err+error_propagate to check errors, switching those
functions to use *errp instead (solving 2 and 3).
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
[Merge comments properly with recent commit "error: Document Error API
usage rules", and edit for clarity. Put ERRP_AUTO_PROPAGATE() before
its helpers, and touch up style. Tweak commit message.]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200707165037.1026246-2-armbru@redhat.com>
(cherry picked from commit ae7c80a7bd73685437bf6ba9d7c26098351f4166)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
include/qapi/error.h | 158 +++++++++++++++++++++++++++++++++++++------
1 file changed, 139 insertions(+), 19 deletions(-)
diff --git a/include/qapi/error.h b/include/qapi/error.h
index 08d48e74836..e658790acfc 100644
--- a/include/qapi/error.h
+++ b/include/qapi/error.h
@@ -30,6 +30,10 @@
* job. Since the value of @errp is about handling the error, the
* function should not examine it.
*
+ * - The function may pass @errp to functions it calls to pass on
+ * their errors to its caller. If it dereferences @errp to check
+ * for errors, it must use ERRP_GUARD().
+ *
* - On success, the function should not touch *errp. On failure, it
* should set a new error, e.g. with error_setg(errp, ...), or
* propagate an existing one, e.g. with error_propagate(errp, ...).
@@ -45,15 +49,17 @@
* = Creating errors =
*
* Create an error:
- * error_setg(&err, "situation normal, all fouled up");
+ * error_setg(errp, "situation normal, all fouled up");
+ * where @errp points to the location to receive the error.
*
* Create an error and add additional explanation:
- * error_setg(&err, "invalid quark");
- * error_append_hint(&err, "Valid quarks are up, down, strange, "
+ * error_setg(errp, "invalid quark");
+ * error_append_hint(errp, "Valid quarks are up, down, strange, "
* "charm, top, bottom.\n");
+ * This may require use of ERRP_GUARD(); more on that below.
*
* Do *not* contract this to
- * error_setg(&err, "invalid quark\n" // WRONG!
+ * error_setg(errp, "invalid quark\n" // WRONG!
* "Valid quarks are up, down, strange, charm, top, bottom.");
*
* = Reporting and destroying errors =
@@ -107,18 +113,6 @@
* Errors get passed to the caller through the conventional @errp
* parameter.
*
- * Pass an existing error to the caller:
- * error_propagate(errp, err);
- * where Error **errp is a parameter, by convention the last one.
- *
- * Pass an existing error to the caller with the message modified:
- * error_propagate_prepend(errp, err,
- * "Could not frobnicate '%s': ", name);
- * This is more concise than
- * error_propagate(errp, err); // don't do this
- * error_prepend(errp, "Could not frobnicate '%s': ", name);
- * and works even when @errp is &error_fatal.
- *
* Create a new error and pass it to the caller:
* error_setg(errp, "situation normal, all fouled up");
*
@@ -129,18 +123,26 @@
* handle the error...
* }
* - when it does not, say because it is a void function:
+ * ERRP_GUARD();
+ * foo(arg, errp);
+ * if (*errp) {
+ * handle the error...
+ * }
+ * More on ERRP_GUARD() below.
+ *
+ * Code predating ERRP_GUARD() still exists, and looks like this:
* Error *err = NULL;
* foo(arg, &err);
* if (err) {
* handle the error...
- * error_propagate(errp, err);
+ * error_propagate(errp, err); // deprecated
* }
- * Do *not* "optimize" this to
+ * Avoid in new code. Do *not* "optimize" it to
* foo(arg, errp);
* if (*errp) { // WRONG!
* handle the error...
* }
- * because errp may be NULL!
+ * because errp may be NULL without the ERRP_GUARD() guard.
*
* But when all you do with the error is pass it on, please use
* foo(arg, errp);
@@ -160,6 +162,19 @@
* handle the error...
* }
*
+ * Pass an existing error to the caller:
+ * error_propagate(errp, err);
+ * This is rarely needed. When @err is a local variable, use of
+ * ERRP_GUARD() commonly results in more readable code.
+ *
+ * Pass an existing error to the caller with the message modified:
+ * error_propagate_prepend(errp, err,
+ * "Could not frobnicate '%s': ", name);
+ * This is more concise than
+ * error_propagate(errp, err); // don't do this
+ * error_prepend(errp, "Could not frobnicate '%s': ", name);
+ * and works even when @errp is &error_fatal.
+ *
* Receive and accumulate multiple errors (first one wins):
* Error *err = NULL, *local_err = NULL;
* foo(arg, &err);
@@ -187,6 +202,69 @@
* error_setg(&err, ...); // WRONG!
* }
* because this may pass a non-null err to error_setg().
+ *
+ * = Why, when and how to use ERRP_GUARD() =
+ *
+ * Without ERRP_GUARD(), use of the @errp parameter is restricted:
+ * - It must not be dereferenced, because it may be null.
+ * - It should not be passed to error_prepend() or
+ * error_append_hint(), because that doesn't work with &error_fatal.
+ * ERRP_GUARD() lifts these restrictions.
+ *
+ * To use ERRP_GUARD(), add it right at the beginning of the function.
+ * @errp can then be used without worrying about the argument being
+ * NULL or &error_fatal.
+ *
+ * Using it when it's not needed is safe, but please avoid cluttering
+ * the source with useless code.
+ *
+ * = Converting to ERRP_GUARD() =
+ *
+ * To convert a function to use ERRP_GUARD():
+ *
+ * 0. If the Error ** parameter is not named @errp, rename it to
+ * @errp.
+ *
+ * 1. Add an ERRP_GUARD() invocation, by convention right at the
+ * beginning of the function. This makes @errp safe to use.
+ *
+ * 2. Replace &err by errp, and err by *errp. Delete local variable
+ * @err.
+ *
+ * 3. Delete error_propagate(errp, *errp), replace
+ * error_propagate_prepend(errp, *errp, ...) by error_prepend(errp, ...)
+ *
+ * 4. Ensure @errp is valid at return: when you destroy *errp, set
+ * errp = NULL.
+ *
+ * Example:
+ *
+ * bool fn(..., Error **errp)
+ * {
+ * Error *err = NULL;
+ *
+ * foo(arg, &err);
+ * if (err) {
+ * handle the error...
+ * error_propagate(errp, err);
+ * return false;
+ * }
+ * ...
+ * }
+ *
+ * becomes
+ *
+ * bool fn(..., Error **errp)
+ * {
+ * ERRP_GUARD();
+ *
+ * foo(arg, errp);
+ * if (*errp) {
+ * handle the error...
+ * return false;
+ * }
+ * ...
+ * }
*/
#ifndef ERROR_H
@@ -287,6 +365,7 @@ void error_setg_win32_internal(Error **errp,
* the error object.
* Else, move the error object from @local_err to *@dst_errp.
* On return, @local_err is invalid.
+ * Please use ERRP_GUARD() instead when possible.
* Please don't error_propagate(&error_fatal, ...), use
* error_report_err() and exit(), because that's more obvious.
*/
@@ -298,6 +377,7 @@ void error_propagate(Error **dst_errp, Error *local_err);
* Behaves like
* error_prepend(&local_err, fmt, ...);
* error_propagate(dst_errp, local_err);
+ * Please use ERRP_GUARD() and error_prepend() instead when possible.
*/
void error_propagate_prepend(Error **dst_errp, Error *local_err,
const char *fmt, ...);
@@ -395,6 +475,46 @@ void error_set_internal(Error **errp,
ErrorClass err_class, const char *fmt, ...)
GCC_FMT_ATTR(6, 7);
+/*
+ * Make @errp parameter easier to use regardless of argument value
+ *
+ * This macro is for use right at the beginning of a function that
+ * takes an Error **errp parameter to pass errors to its caller. The
+ * parameter must be named @errp.
+ *
+ * It must be used when the function dereferences @errp or passes
+ * @errp to error_prepend(), error_vprepend(), or error_append_hint().
+ * It is safe to use even when it's not needed, but please avoid
+ * cluttering the source with useless code.
+ *
+ * If @errp is NULL or &error_fatal, rewrite it to point to a local
+ * Error variable, which will be automatically propagated to the
+ * original @errp on function exit.
+ *
+ * Note: &error_abort is not rewritten, because that would move the
+ * abort from the place where the error is created to the place where
+ * it's propagated.
+ */
+#define ERRP_GUARD() \
+ g_auto(ErrorPropagator) _auto_errp_prop = {.errp = errp}; \
+ do { \
+ if (!errp || errp == &error_fatal) { \
+ errp = &_auto_errp_prop.local_err; \
+ } \
+ } while (0)
+
+typedef struct ErrorPropagator {
+ Error *local_err;
+ Error **errp;
+} ErrorPropagator;
+
+static inline void error_propagator_cleanup(ErrorPropagator *prop)
+{
+ error_propagate(prop->errp, prop->local_err);
+}
+
+G_DEFINE_AUTO_CLEANUP_CLEAR_FUNC(ErrorPropagator, error_propagator_cleanup);
+
/*
* Special error destination to abort on error.
* See error_setg() and error_propagate() for details.
--
2.27.0

85
SOURCES/kvm-exec-rom_reset-Free-rom-data-during-inmigrate-skip.patch Normal file
View File

@ -0,0 +1,85 @@
From 5770fe43fe1e15e6f53cfd3705605e8645b95a98 Mon Sep 17 00:00:00 2001
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Date: Fri, 13 Mar 2020 17:17:08 +0000
Subject: [PATCH 20/20] exec/rom_reset: Free rom data during inmigrate skip
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: <20200313171708.242774-1-dgilbert@redhat.com>
Patchwork-id: 94292
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 1/1] exec/rom_reset: Free rom data during inmigrate skip
Bugzilla: 1809380
RH-Acked-by: Daniel P. Berrange <berrange@redhat.com>
RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
bz: https://bugzilla.redhat.com/show_bug.cgi?id=1809380
brew: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=27249921
branch: rhel-av-8.2.0
upstream: Posted and with review-by, not merged yet
Commit 355477f8c73e9 skips rom reset when we're an incoming migration
so as not to overwrite shared ram in the ignore-shared migration
optimisation.
However, it's got an unexpected side effect that because it skips
freeing the ROM data, when rom_reset gets called later on, after
migration (e.g. during a reboot), the ROM does get reset to the original
file contents. Because of seabios/x86's weird reboot process
this confuses a reboot into hanging after a migration.
Fixes: 355477f8c73e9 ("migration: do not rom_reset() during incoming migration")
https://bugzilla.redhat.com/show_bug.cgi?id=1809380
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/core/loader.c | 25 ++++++++++++++++---------
1 file changed, 16 insertions(+), 9 deletions(-)
diff --git a/hw/core/loader.c b/hw/core/loader.c
index 5099f27..375b29b 100644
--- a/hw/core/loader.c
+++ b/hw/core/loader.c
@@ -1118,19 +1118,26 @@ static void rom_reset(void *unused)
{
Rom *rom;
- /*
- * We don't need to fill in the RAM with ROM data because we'll fill
- * the data in during the next incoming migration in all cases. Note
- * that some of those RAMs can actually be modified by the guest on ARM
- * so this is probably the only right thing to do here.
- */
- if (runstate_check(RUN_STATE_INMIGRATE))
- return;
-
QTAILQ_FOREACH(rom, &roms, next) {
if (rom->fw_file) {
continue;
}
+ /*
+ * We don't need to fill in the RAM with ROM data because we'll fill
+ * the data in during the next incoming migration in all cases. Note
+ * that some of those RAMs can actually be modified by the guest.
+ */
+ if (runstate_check(RUN_STATE_INMIGRATE)) {
+ if (rom->data && rom->isrom) {
+ /*
+ * Free it so that a rom_reset after migration doesn't
+ * overwrite a potentially modified 'rom'.
+ */
+ rom_free_data(rom);
+ }
+ continue;
+ }
+
if (rom->data == NULL) {
continue;
}
--
1.8.3.1

131
SOURCES/kvm-file-posix-Drop-hdev_co_create_opts.patch Normal file
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@ -0,0 +1,131 @@
From 3d3509c010129bd15eb1f5ec1a7b9eedcdbf23f6 Mon Sep 17 00:00:00 2001
From: Maxim Levitsky <mlevitsk@redhat.com>
Date: Wed, 11 Mar 2020 10:51:44 +0000
Subject: [PATCH 03/20] file-posix: Drop hdev_co_create_opts()
RH-Author: Maxim Levitsky <mlevitsk@redhat.com>
Message-id: <20200311105147.13208-4-mlevitsk@redhat.com>
Patchwork-id: 94225
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH v2 3/6] file-posix: Drop hdev_co_create_opts()
Bugzilla: 1640894
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
RH-Acked-by: John Snow <jsnow@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
From: Max Reitz <mreitz@redhat.com>
The generic fallback implementation effectively does the same.
Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200122164532.178040-4-mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
(cherry picked from commit 87ca3b8fa615b278b33cabf9ed22b3f44b5214ba)
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/file-posix.c | 67 ------------------------------------------------------
1 file changed, 67 deletions(-)
diff --git a/block/file-posix.c b/block/file-posix.c
index 1b805bd..fd29372 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -3418,67 +3418,6 @@ static coroutine_fn int hdev_co_pwrite_zeroes(BlockDriverState *bs,
return raw_do_pwrite_zeroes(bs, offset, bytes, flags, true);
}
-static int coroutine_fn hdev_co_create_opts(const char *filename, QemuOpts *opts,
- Error **errp)
-{
- int fd;
- int ret = 0;
- struct stat stat_buf;
- int64_t total_size = 0;
- bool has_prefix;
-
- /* This function is used by both protocol block drivers and therefore either
- * of these prefixes may be given.
- * The return value has to be stored somewhere, otherwise this is an error
- * due to -Werror=unused-value. */
- has_prefix =
- strstart(filename, "host_device:", &filename) ||
- strstart(filename, "host_cdrom:" , &filename);
-
- (void)has_prefix;
-
- ret = raw_normalize_devicepath(&filename, errp);
- if (ret < 0) {
- return ret;
- }
-
- /* Read out options */
- total_size = ROUND_UP(qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0),
- BDRV_SECTOR_SIZE);
-
- fd = qemu_open(filename, O_WRONLY | O_BINARY);
- if (fd < 0) {
- ret = -errno;
- error_setg_errno(errp, -ret, "Could not open device");
- return ret;
- }
-
- if (fstat(fd, &stat_buf) < 0) {
- ret = -errno;
- error_setg_errno(errp, -ret, "Could not stat device");
- } else if (!S_ISBLK(stat_buf.st_mode) && !S_ISCHR(stat_buf.st_mode)) {
- error_setg(errp,
- "The given file is neither a block nor a character device");
- ret = -ENODEV;
- } else if (lseek(fd, 0, SEEK_END) < total_size) {
- error_setg(errp, "Device is too small");
- ret = -ENOSPC;
- }
-
- if (!ret && total_size) {
- uint8_t buf[BDRV_SECTOR_SIZE] = { 0 };
- int64_t zero_size = MIN(BDRV_SECTOR_SIZE, total_size);
- if (lseek(fd, 0, SEEK_SET) == -1) {
- ret = -errno;
- } else {
- ret = qemu_write_full(fd, buf, zero_size);
- ret = ret == zero_size ? 0 : -errno;
- }
- }
- qemu_close(fd);
- return ret;
-}
-
static BlockDriver bdrv_host_device = {
.format_name = "host_device",
.protocol_name = "host_device",
@@ -3491,8 +3430,6 @@ static BlockDriver bdrv_host_device = {
.bdrv_reopen_prepare = raw_reopen_prepare,
.bdrv_reopen_commit = raw_reopen_commit,
.bdrv_reopen_abort = raw_reopen_abort,
- .bdrv_co_create_opts = hdev_co_create_opts,
- .create_opts = &raw_create_opts,
.mutable_opts = mutable_opts,
.bdrv_co_invalidate_cache = raw_co_invalidate_cache,
.bdrv_co_pwrite_zeroes = hdev_co_pwrite_zeroes,
@@ -3619,8 +3556,6 @@ static BlockDriver bdrv_host_cdrom = {
.bdrv_reopen_prepare = raw_reopen_prepare,
.bdrv_reopen_commit = raw_reopen_commit,
.bdrv_reopen_abort = raw_reopen_abort,
- .bdrv_co_create_opts = hdev_co_create_opts,
- .create_opts = &raw_create_opts,
.mutable_opts = mutable_opts,
.bdrv_co_invalidate_cache = raw_co_invalidate_cache,
@@ -3753,8 +3688,6 @@ static BlockDriver bdrv_host_cdrom = {
.bdrv_reopen_prepare = raw_reopen_prepare,
.bdrv_reopen_commit = raw_reopen_commit,
.bdrv_reopen_abort = raw_reopen_abort,
- .bdrv_co_create_opts = hdev_co_create_opts,
- .create_opts = &raw_create_opts,
.mutable_opts = mutable_opts,
.bdrv_co_preadv = raw_co_preadv,
--
1.8.3.1

48
SOURCES/kvm-file-posix-Support-BDRV_REQ_ZERO_WRITE-for-truncate.patch Normal file
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@ -0,0 +1,48 @@
From 55bfda3a0e077b822f57e8ed901f0cee848bc471 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Mon, 8 Jun 2020 15:01:35 +0100
Subject: [PATCH 07/17] file-posix: Support BDRV_REQ_ZERO_WRITE for truncate
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20200608150140.38218-7-kwolf@redhat.com>
Patchwork-id: 97452
O-Subject: [RHEL-AV-8.2.1 qemu-kvm PATCH 06/11] file-posix: Support BDRV_REQ_ZERO_WRITE for truncate
Bugzilla: 1780574
RH-Acked-by: Sergio Lopez Pascual <slp@redhat.com>
RH-Acked-by: Eric Blake <eblake@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
For regular files, we always get BDRV_REQ_ZERO_WRITE behaviour from the
OS, so we can advertise the flag and just ignore it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200424125448.63318-7-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
(cherry picked from commit 2f0c6e7a650de133eccd94e9bb6cf7b2070f07f1)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
block/file-posix.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/block/file-posix.c b/block/file-posix.c
index 7551e8d..adafbfa 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -674,6 +674,10 @@ static int raw_open_common(BlockDriverState *bs, QDict *options,
#endif
bs->supported_zero_flags = BDRV_REQ_MAY_UNMAP | BDRV_REQ_NO_FALLBACK;
+ if (S_ISREG(st.st_mode)) {
+ /* When extending regular files, we get zeros from the OS */
+ bs->supported_truncate_flags = BDRV_REQ_ZERO_WRITE;
+ }
ret = 0;
fail:
if (filename && (bdrv_flags & BDRV_O_TEMPORARY)) {
--
1.8.3.1

275
SOURCES/kvm-hmat-acpi-Build-Memory-Proximity-Domain-Attributes-S.patch Normal file
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@ -0,0 +1,275 @@
From a0816e4374759048cb24b9b3549a093a2ccb6240 Mon Sep 17 00:00:00 2001
From: "plai@redhat.com" <plai@redhat.com>
Date: Thu, 21 May 2020 23:56:50 +0100
Subject: [PATCH 07/12] hmat acpi: Build Memory Proximity Domain Attributes
Structure(s)
RH-Author: plai@redhat.com
Message-id: <20200521235655.27141-7-plai@redhat.com>
Patchwork-id: 96734
O-Subject: [RHEL8.2.1 AV qemu-kvm PATCH 06/11] hmat acpi: Build Memory Proximity Domain Attributes Structure(s)
Bugzilla: 1600217
RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>
RH-Acked-by: Igor Mammedov <imammedo@redhat.com>
RH-Acked-by: Eduardo Habkost <ehabkost@redhat.com>
From: Liu Jingqi <jingqi.liu@intel.com>
HMAT is defined in ACPI 6.3: 5.2.27 Heterogeneous Memory Attribute Table
(HMAT). The specification references below link:
http://www.uefi.org/sites/default/files/resources/ACPI_6_3_final_Jan30.pdf
It describes the memory attributes, such as memory side cache
attributes and bandwidth and latency details, related to the
Memory Proximity Domain. The software is
expected to use this information as hint for optimization.
This structure describes Memory Proximity Domain Attributes by memory
subsystem and its associativity with processor proximity domain as well as
hint for memory usage.
In the linux kernel, the codes in drivers/acpi/hmat/hmat.c parse and report
the platform's HMAT tables.
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Daniel Black <daniel@linux.ibm.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Liu Jingqi <jingqi.liu@intel.com>
Signed-off-by: Tao Xu <tao3.xu@intel.com>
Message-Id: <20191213011929.2520-5-tao3.xu@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit e6f123c3b81241be33f1b763d0ff8b36d1ae9c1e)
Signed-off-by: Paul Lai <plai@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/acpi/Kconfig | 7 ++--
hw/acpi/Makefile.objs | 1 +
hw/acpi/hmat.c | 99 +++++++++++++++++++++++++++++++++++++++++++++++++++
hw/acpi/hmat.h | 42 ++++++++++++++++++++++
hw/i386/acpi-build.c | 5 +++
5 files changed, 152 insertions(+), 2 deletions(-)
create mode 100644 hw/acpi/hmat.c
create mode 100644 hw/acpi/hmat.h
diff --git a/hw/acpi/Kconfig b/hw/acpi/Kconfig
index 12e3f1e..54209c6 100644
--- a/hw/acpi/Kconfig
+++ b/hw/acpi/Kconfig
@@ -7,6 +7,7 @@ config ACPI_X86
select ACPI_NVDIMM
select ACPI_CPU_HOTPLUG
select ACPI_MEMORY_HOTPLUG
+ select ACPI_HMAT
config ACPI_X86_ICH
bool
@@ -23,6 +24,10 @@ config ACPI_NVDIMM
bool
depends on ACPI
+config ACPI_HMAT
+ bool
+ depends on ACPI
+
config ACPI_PCI
bool
depends on ACPI && PCI
@@ -33,5 +38,3 @@ config ACPI_VMGENID
depends on PC
config ACPI_HW_REDUCED
- bool
- depends on ACPI
diff --git a/hw/acpi/Makefile.objs b/hw/acpi/Makefile.objs
index 655a9c1..517bd88 100644
--- a/hw/acpi/Makefile.objs
+++ b/hw/acpi/Makefile.objs
@@ -7,6 +7,7 @@ common-obj-$(CONFIG_ACPI_CPU_HOTPLUG) += cpu.o
common-obj-$(CONFIG_ACPI_NVDIMM) += nvdimm.o
common-obj-$(CONFIG_ACPI_VMGENID) += vmgenid.o
common-obj-$(CONFIG_ACPI_HW_REDUCED) += generic_event_device.o
+common-obj-$(CONFIG_ACPI_HMAT) += hmat.o
common-obj-$(call lnot,$(CONFIG_ACPI_X86)) += acpi-stub.o
common-obj-y += acpi_interface.o
diff --git a/hw/acpi/hmat.c b/hw/acpi/hmat.c
new file mode 100644
index 0000000..9ff7930
--- /dev/null
+++ b/hw/acpi/hmat.c
@@ -0,0 +1,99 @@
+/*
+ * HMAT ACPI Implementation
+ *
+ * Copyright(C) 2019 Intel Corporation.
+ *
+ * Author:
+ * Liu jingqi <jingqi.liu@linux.intel.com>
+ * Tao Xu <tao3.xu@intel.com>
+ *
+ * HMAT is defined in ACPI 6.3: 5.2.27 Heterogeneous Memory Attribute Table
+ * (HMAT)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>
+ */
+
+#include "qemu/osdep.h"
+#include "sysemu/numa.h"
+#include "hw/acpi/hmat.h"
+
+/*
+ * ACPI 6.3:
+ * 5.2.27.3 Memory Proximity Domain Attributes Structure: Table 5-145
+ */
+static void build_hmat_mpda(GArray *table_data, uint16_t flags,
+ uint32_t initiator, uint32_t mem_node)
+{
+
+ /* Memory Proximity Domain Attributes Structure */
+ /* Type */
+ build_append_int_noprefix(table_data, 0, 2);
+ /* Reserved */
+ build_append_int_noprefix(table_data, 0, 2);
+ /* Length */
+ build_append_int_noprefix(table_data, 40, 4);
+ /* Flags */
+ build_append_int_noprefix(table_data, flags, 2);
+ /* Reserved */
+ build_append_int_noprefix(table_data, 0, 2);
+ /* Proximity Domain for the Attached Initiator */
+ build_append_int_noprefix(table_data, initiator, 4);
+ /* Proximity Domain for the Memory */
+ build_append_int_noprefix(table_data, mem_node, 4);
+ /* Reserved */
+ build_append_int_noprefix(table_data, 0, 4);
+ /*
+ * Reserved:
+ * Previously defined as the Start Address of the System Physical
+ * Address Range. Deprecated since ACPI Spec 6.3.
+ */
+ build_append_int_noprefix(table_data, 0, 8);
+ /*
+ * Reserved:
+ * Previously defined as the Range Length of the region in bytes.
+ * Deprecated since ACPI Spec 6.3.
+ */
+ build_append_int_noprefix(table_data, 0, 8);
+}
+
+/* Build HMAT sub table structures */
+static void hmat_build_table_structs(GArray *table_data, NumaState *numa_state)
+{
+ uint16_t flags;
+ int i;
+
+ for (i = 0; i < numa_state->num_nodes; i++) {
+ flags = 0;
+
+ if (numa_state->nodes[i].initiator < MAX_NODES) {
+ flags |= HMAT_PROXIMITY_INITIATOR_VALID;
+ }
+
+ build_hmat_mpda(table_data, flags, numa_state->nodes[i].initiator, i);
+ }
+}
+
+void build_hmat(GArray *table_data, BIOSLinker *linker, NumaState *numa_state)
+{
+ int hmat_start = table_data->len;
+
+ /* reserve space for HMAT header */
+ acpi_data_push(table_data, 40);
+
+ hmat_build_table_structs(table_data, numa_state);
+
+ build_header(linker, table_data,
+ (void *)(table_data->data + hmat_start),
+ "HMAT", table_data->len - hmat_start, 2, NULL, NULL);
+}
diff --git a/hw/acpi/hmat.h b/hw/acpi/hmat.h
new file mode 100644
index 0000000..437dbc6
--- /dev/null
+++ b/hw/acpi/hmat.h
@@ -0,0 +1,42 @@
+/*
+ * HMAT ACPI Implementation Header
+ *
+ * Copyright(C) 2019 Intel Corporation.
+ *
+ * Author:
+ * Liu jingqi <jingqi.liu@linux.intel.com>
+ * Tao Xu <tao3.xu@intel.com>
+ *
+ * HMAT is defined in ACPI 6.3: 5.2.27 Heterogeneous Memory Attribute Table
+ * (HMAT)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>
+ */
+
+#ifndef HMAT_H
+#define HMAT_H
+
+#include "hw/acpi/aml-build.h"
+
+/*
+ * ACPI 6.3: 5.2.27.3 Memory Proximity Domain Attributes Structure,
+ * Table 5-145, Field "flag", Bit [0]: set to 1 to indicate that data in
+ * the Proximity Domain for the Attached Initiator field is valid.
+ * Other bits reserved.
+ */
+#define HMAT_PROXIMITY_INITIATOR_VALID 0x1
+
+void build_hmat(GArray *table_data, BIOSLinker *linker, NumaState *numa_state);
+
+#endif
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index 6400189..b1f8c55 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -67,6 +67,7 @@
#include "hw/i386/intel_iommu.h"
#include "hw/acpi/ipmi.h"
+#include "hw/acpi/hmat.h"
/* These are used to size the ACPI tables for -M pc-i440fx-1.7 and
* -M pc-i440fx-2.0. Even if the actual amount of AML generated grows
@@ -2837,6 +2838,10 @@ void acpi_build(AcpiBuildTables *tables, MachineState *machine)
acpi_add_table(table_offsets, tables_blob);
build_slit(tables_blob, tables->linker, machine);
}
+ if (machine->numa_state->hmat_enabled) {
+ acpi_add_table(table_offsets, tables_blob);
+ build_hmat(tables_blob, tables->linker, machine->numa_state);
+ }
}
if (acpi_get_mcfg(&mcfg)) {
acpi_add_table(table_offsets, tables_blob);
--
1.8.3.1

137
SOURCES/kvm-hmat-acpi-Build-Memory-Side-Cache-Information-Struct.patch Normal file
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@ -0,0 +1,137 @@
From d00453667cb972dc2fe1242081d3b39313a6a925 Mon Sep 17 00:00:00 2001
From: "plai@redhat.com" <plai@redhat.com>
Date: Thu, 21 May 2020 23:56:52 +0100
Subject: [PATCH 09/12] hmat acpi: Build Memory Side Cache Information
Structure(s)
RH-Author: plai@redhat.com
Message-id: <20200521235655.27141-9-plai@redhat.com>
Patchwork-id: 96741
O-Subject: [RHEL8.2.1 AV qemu-kvm PATCH 08/11] hmat acpi: Build Memory Side Cache Information Structure(s)
Bugzilla: 1600217
RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>
RH-Acked-by: Igor Mammedov <imammedo@redhat.com>
RH-Acked-by: Eduardo Habkost <ehabkost@redhat.com>
From: Liu Jingqi <jingqi.liu@intel.com>
This structure describes memory side cache information for memory
proximity domains if the memory side cache is present and the
physical device forms the memory side cache.
The software could use this information to effectively place
the data in memory to maximize the performance of the system
memory that use the memory side cache.
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Daniel Black <daniel@linux.ibm.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Liu Jingqi <jingqi.liu@intel.com>
Signed-off-by: Tao Xu <tao3.xu@intel.com>
Message-Id: <20191213011929.2520-7-tao3.xu@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit a9c2b841af002db6e21e1297c9026b63fc22c875)
Signed-off-by: Paul Lai <plai@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/acpi/hmat.c | 69 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 68 insertions(+), 1 deletion(-)
diff --git a/hw/acpi/hmat.c b/hw/acpi/hmat.c
index 4635d45..7c24bb5 100644
--- a/hw/acpi/hmat.c
+++ b/hw/acpi/hmat.c
@@ -143,14 +143,62 @@ static void build_hmat_lb(GArray *table_data, HMAT_LB_Info *hmat_lb,
g_free(entry_list);
}
+/* ACPI 6.3: 5.2.27.5 Memory Side Cache Information Structure: Table 5-147 */
+static void build_hmat_cache(GArray *table_data, uint8_t total_levels,
+ NumaHmatCacheOptions *hmat_cache)
+{
+ /*
+ * Cache Attributes: Bits [3:0] – Total Cache Levels
+ * for this Memory Proximity Domain
+ */
+ uint32_t cache_attr = total_levels;
+
+ /* Bits [7:4] : Cache Level described in this structure */
+ cache_attr |= (uint32_t) hmat_cache->level << 4;
+
+ /* Bits [11:8] - Cache Associativity */
+ cache_attr |= (uint32_t) hmat_cache->associativity << 8;
+
+ /* Bits [15:12] - Write Policy */
+ cache_attr |= (uint32_t) hmat_cache->policy << 12;
+
+ /* Bits [31:16] - Cache Line size in bytes */
+ cache_attr |= (uint32_t) hmat_cache->line << 16;
+
+ /* Type */
+ build_append_int_noprefix(table_data, 2, 2);
+ /* Reserved */
+ build_append_int_noprefix(table_data, 0, 2);
+ /* Length */
+ build_append_int_noprefix(table_data, 32, 4);
+ /* Proximity Domain for the Memory */
+ build_append_int_noprefix(table_data, hmat_cache->node_id, 4);
+ /* Reserved */
+ build_append_int_noprefix(table_data, 0, 4);
+ /* Memory Side Cache Size */
+ build_append_int_noprefix(table_data, hmat_cache->size, 8);
+ /* Cache Attributes */
+ build_append_int_noprefix(table_data, cache_attr, 4);
+ /* Reserved */
+ build_append_int_noprefix(table_data, 0, 2);
+ /*
+ * Number of SMBIOS handles (n)
+ * Linux kernel uses Memory Side Cache Information Structure
+ * without SMBIOS entries for now, so set Number of SMBIOS handles
+ * as 0.
+ */
+ build_append_int_noprefix(table_data, 0, 2);
+}
+
/* Build HMAT sub table structures */
static void hmat_build_table_structs(GArray *table_data, NumaState *numa_state)
{
uint16_t flags;
uint32_t num_initiator = 0;
uint32_t initiator_list[MAX_NODES];
- int i, hierarchy, type;
+ int i, hierarchy, type, cache_level, total_levels;
HMAT_LB_Info *hmat_lb;
+ NumaHmatCacheOptions *hmat_cache;
for (i = 0; i < numa_state->num_nodes; i++) {
flags = 0;
@@ -184,6 +232,25 @@ static void hmat_build_table_structs(GArray *table_data, NumaState *numa_state)
}
}
}
+
+ /*
+ * ACPI 6.3: 5.2.27.5 Memory Side Cache Information Structure:
+ * Table 5-147
+ */
+ for (i = 0; i < numa_state->num_nodes; i++) {
+ total_levels = 0;
+ for (cache_level = 1; cache_level < HMAT_LB_LEVELS; cache_level++) {
+ if (numa_state->hmat_cache[i][cache_level]) {
+ total_levels++;
+ }
+ }
+ for (cache_level = 0; cache_level <= total_levels; cache_level++) {
+ hmat_cache = numa_state->hmat_cache[i][cache_level];
+ if (hmat_cache) {
+ build_hmat_cache(table_data, total_levels, hmat_cache);
+ }
+ }
+ }
}
void build_hmat(GArray *table_data, BIOSLinker *linker, NumaState *numa_state)
--
1.8.3.1

173
SOURCES/kvm-hmat-acpi-Build-System-Locality-Latency-and-Bandwidt.patch Normal file
View File

@ -0,0 +1,173 @@
From f55b8b251c323856087baf2380d93fbf2da15db7 Mon Sep 17 00:00:00 2001
From: "plai@redhat.com" <plai@redhat.com>
Date: Thu, 21 May 2020 23:56:51 +0100
Subject: [PATCH 08/12] hmat acpi: Build System Locality Latency and Bandwidth
Information Structure(s)
RH-Author: plai@redhat.com
Message-id: <20200521235655.27141-8-plai@redhat.com>
Patchwork-id: 96733
O-Subject: [RHEL8.2.1 AV qemu-kvm PATCH 07/11] hmat acpi: Build System Locality Latency and Bandwidth Information Structure(s)
Bugzilla: 1600217
RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>
RH-Acked-by: Igor Mammedov <imammedo@redhat.com>
RH-Acked-by: Eduardo Habkost <ehabkost@redhat.com>
From: Liu Jingqi <jingqi.liu@intel.com>
This structure describes the memory access latency and bandwidth
information from various memory access initiator proximity domains.
The latency and bandwidth numbers represented in this structure
correspond to rated latency and bandwidth for the platform.
The software could use this information as hint for optimization.
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Liu Jingqi <jingqi.liu@intel.com>
Signed-off-by: Tao Xu <tao3.xu@intel.com>
Message-Id: <20191213011929.2520-6-tao3.xu@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 4586a2cb833f80b19c80ebe364a005ac2fa0974a)
Signed-off-by: Paul Lai <plai@redhat.com>
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/acpi/hmat.c | 104 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 103 insertions(+), 1 deletion(-)
diff --git a/hw/acpi/hmat.c b/hw/acpi/hmat.c
index 9ff7930..4635d45 100644
--- a/hw/acpi/hmat.c
+++ b/hw/acpi/hmat.c
@@ -25,6 +25,7 @@
*/
#include "qemu/osdep.h"
+#include "qemu/units.h"
#include "sysemu/numa.h"
#include "hw/acpi/hmat.h"
@@ -67,11 +68,89 @@ static void build_hmat_mpda(GArray *table_data, uint16_t flags,
build_append_int_noprefix(table_data, 0, 8);
}
+/*
+ * ACPI 6.3: 5.2.27.4 System Locality Latency and Bandwidth Information
+ * Structure: Table 5-146
+ */
+static void build_hmat_lb(GArray *table_data, HMAT_LB_Info *hmat_lb,
+ uint32_t num_initiator, uint32_t num_target,
+ uint32_t *initiator_list)
+{
+ int i, index;
+ HMAT_LB_Data *lb_data;
+ uint16_t *entry_list;
+ uint32_t base;
+ /* Length in bytes for entire structure */
+ uint32_t lb_length
+ = 32 /* Table length upto and including Entry Base Unit */
+ + 4 * num_initiator /* Initiator Proximity Domain List */
+ + 4 * num_target /* Target Proximity Domain List */
+ + 2 * num_initiator * num_target; /* Latency or Bandwidth Entries */
+
+ /* Type */
+ build_append_int_noprefix(table_data, 1, 2);
+ /* Reserved */
+ build_append_int_noprefix(table_data, 0, 2);
+ /* Length */
+ build_append_int_noprefix(table_data, lb_length, 4);
+ /* Flags: Bits [3:0] Memory Hierarchy, Bits[7:4] Reserved */
+ assert(!(hmat_lb->hierarchy >> 4));
+ build_append_int_noprefix(table_data, hmat_lb->hierarchy, 1);
+ /* Data Type */
+ build_append_int_noprefix(table_data, hmat_lb->data_type, 1);
+ /* Reserved */
+ build_append_int_noprefix(table_data, 0, 2);
+ /* Number of Initiator Proximity Domains (s) */
+ build_append_int_noprefix(table_data, num_initiator, 4);
+ /* Number of Target Proximity Domains (t) */
+ build_append_int_noprefix(table_data, num_target, 4);
+ /* Reserved */
+ build_append_int_noprefix(table_data, 0, 4);
+
+ /* Entry Base Unit */
+ if (hmat_lb->data_type <= HMAT_LB_DATA_WRITE_LATENCY) {
+ /* Convert latency base from nanoseconds to picosecond */
+ base = hmat_lb->base * 1000;
+ } else {
+ /* Convert bandwidth base from Byte to Megabyte */
+ base = hmat_lb->base / MiB;
+ }
+ build_append_int_noprefix(table_data, base, 8);
+
+ /* Initiator Proximity Domain List */
+ for (i = 0; i < num_initiator; i++) {
+ build_append_int_noprefix(table_data, initiator_list[i], 4);
+ }
+
+ /* Target Proximity Domain List */
+ for (i = 0; i < num_target; i++) {
+ build_append_int_noprefix(table_data, i, 4);
+ }
+
+ /* Latency or Bandwidth Entries */
+ entry_list = g_malloc0(num_initiator * num_target * sizeof(uint16_t));
+ for (i = 0; i < hmat_lb->list->len; i++) {
+ lb_data = &g_array_index(hmat_lb->list, HMAT_LB_Data, i);
+ index = lb_data->initiator * num_target + lb_data->target;
+
+ entry_list[index] = (uint16_t)(lb_data->data / hmat_lb->base);
+ }
+
+ for (i = 0; i < num_initiator * num_target; i++) {
+ build_append_int_noprefix(table_data, entry_list[i], 2);
+ }
+
+ g_free(entry_list);
+}
+
/* Build HMAT sub table structures */
static void hmat_build_table_structs(GArray *table_data, NumaState *numa_state)
{
uint16_t flags;
- int i;
+ uint32_t num_initiator = 0;
+ uint32_t initiator_list[MAX_NODES];
+ int i, hierarchy, type;
+ HMAT_LB_Info *hmat_lb;
for (i = 0; i < numa_state->num_nodes; i++) {
flags = 0;
@@ -82,6 +161,29 @@ static void hmat_build_table_structs(GArray *table_data, NumaState *numa_state)
build_hmat_mpda(table_data, flags, numa_state->nodes[i].initiator, i);
}
+
+ for (i = 0; i < numa_state->num_nodes; i++) {
+ if (numa_state->nodes[i].has_cpu) {
+ initiator_list[num_initiator++] = i;
+ }
+ }
+
+ /*
+ * ACPI 6.3: 5.2.27.4 System Locality Latency and Bandwidth Information
+ * Structure: Table 5-146
+ */
+ for (hierarchy = HMAT_LB_MEM_MEMORY;
+ hierarchy <= HMAT_LB_MEM_CACHE_3RD_LEVEL; hierarchy++) {
+ for (type = HMAT_LB_DATA_ACCESS_LATENCY;
+ type <= HMAT_LB_DATA_WRITE_BANDWIDTH; type++) {
+ hmat_lb = numa_state->hmat_lb[hierarchy][type];
+
+ if (hmat_lb && hmat_lb->list->len) {
+ build_hmat_lb(table_data, hmat_lb, num_initiator,
+ numa_state->num_nodes, initiator_list);
+ }
+ }
+ }
}
void build_hmat(GArray *table_data, BIOSLinker *linker, NumaState *numa_state)
--
1.8.3.1

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