139 lines
5.4 KiB
Diff
139 lines
5.4 KiB
Diff
From 91262ecfbd218a95dab8491e4226674f79debf5a Mon Sep 17 00:00:00 2001
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From: Miroslav Rezanina <mrezanin@redhat.com>
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Date: Wed, 26 May 2021 10:56:02 +0200
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Subject: Initial redhat build
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This patch introduces redhat build structure in redhat subdirectory. In addition,
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several issues are fixed in QEMU tree:
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- Change of app name for sasl_server_init in VNC code from qemu to qemu-kvm
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- As we use qemu-kvm as name in all places, this is updated to be consistent
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- Man page renamed from qemu to qemu-kvm
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- man page is installed using make install so we have to fix it in qemu tree
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We disable make check due to issues with some of the tests.
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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.distro/Makefile | 101 ++
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.distro/Makefile.common | 42 +
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.distro/README.tests | 39 +
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.distro/modules-load.conf | 4 +
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.distro/qemu-guest-agent.service | 1 -
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.distro/qemu-kvm.spec.template | 1250 +++++++++++++++++++++++
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.distro/rpminspect.yaml | 6 +-
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.distro/scripts/extract_build_cmd.py | 12 +
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.distro/scripts/frh.py | 4 +-
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.distro/scripts/process-patches.sh | 4 +
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.gitignore | 1 +
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README.systemtap | 43 +
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scripts/qemu-guest-agent/fsfreeze-hook | 2 +-
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scripts/systemtap/conf.d/qemu_kvm.conf | 4 +
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scripts/systemtap/script.d/qemu_kvm.stp | 1 +
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ui/vnc-auth-sasl.c | 2 +-
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16 files changed, 1510 insertions(+), 6 deletions(-)
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create mode 100644 .distro/Makefile
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create mode 100644 .distro/Makefile.common
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create mode 100644 .distro/README.tests
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create mode 100644 .distro/modules-load.conf
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create mode 100644 .distro/qemu-kvm.spec.template
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create mode 100644 README.systemtap
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create mode 100644 scripts/systemtap/conf.d/qemu_kvm.conf
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create mode 100644 scripts/systemtap/script.d/qemu_kvm.stp
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diff --git a/README.systemtap b/README.systemtap
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new file mode 100644
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index 0000000000..ad913fc990
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--- /dev/null
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+++ b/README.systemtap
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@@ -0,0 +1,43 @@
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+QEMU tracing using systemtap-initscript
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+---------------------------------------
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+
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+You can capture QEMU trace data all the time using systemtap-initscript. This
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+uses SystemTap's flight recorder mode to trace all running guests to a
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+fixed-size buffer on the host. Old trace entries are overwritten by new
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+entries when the buffer size wraps.
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+
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+1. Install the systemtap-initscript package:
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+ # yum install systemtap-initscript
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+
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+2. Install the systemtap scripts and the conf file:
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+ # cp /usr/share/qemu-kvm/systemtap/script.d/qemu_kvm.stp /etc/systemtap/script.d/
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+ # cp /usr/share/qemu-kvm/systemtap/conf.d/qemu_kvm.conf /etc/systemtap/conf.d/
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+
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+The set of trace events to enable is given in qemu_kvm.stp. This SystemTap
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+script can be customized to add or remove trace events provided in
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+/usr/share/systemtap/tapset/qemu-kvm-simpletrace.stp.
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+
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+SystemTap customizations can be made to qemu_kvm.conf to control the flight
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+recorder buffer size and whether to store traces in memory only or disk too.
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+See stap(1) for option documentation.
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+
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+3. Start the systemtap service.
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+ # service systemtap start qemu_kvm
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+
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+4. Make the service start at boot time.
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+ # chkconfig systemtap on
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+
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+5. Confirm that the service works.
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+ # service systemtap status qemu_kvm
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+ qemu_kvm is running...
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+
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+When you want to inspect the trace buffer, perform the following steps:
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+
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+1. Dump the trace buffer.
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+ # staprun -A qemu_kvm >/tmp/trace.log
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+
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+2. Start the systemtap service because the preceding step stops the service.
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+ # service systemtap start qemu_kvm
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+
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+3. Translate the trace record to readable format.
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+ # /usr/share/qemu-kvm/simpletrace.py --no-header /usr/share/qemu-kvm/trace-events /tmp/trace.log
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diff --git a/scripts/qemu-guest-agent/fsfreeze-hook b/scripts/qemu-guest-agent/fsfreeze-hook
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index 13aafd4845..e9b84ec028 100755
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--- a/scripts/qemu-guest-agent/fsfreeze-hook
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+++ b/scripts/qemu-guest-agent/fsfreeze-hook
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@@ -8,7 +8,7 @@
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# request, it is issued with "thaw" argument after filesystem is thawed.
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LOGFILE=/var/log/qga-fsfreeze-hook.log
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-FSFREEZE_D=$(dirname -- "$0")/fsfreeze-hook.d
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+FSFREEZE_D=$(dirname -- "$(realpath $0)")/fsfreeze-hook.d
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# Check whether file $1 is a backup or rpm-generated file and should be ignored
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is_ignored_file() {
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diff --git a/scripts/systemtap/conf.d/qemu_kvm.conf b/scripts/systemtap/conf.d/qemu_kvm.conf
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new file mode 100644
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index 0000000000..372d8160a4
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--- /dev/null
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+++ b/scripts/systemtap/conf.d/qemu_kvm.conf
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@@ -0,0 +1,4 @@
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+# Force load uprobes (see BZ#1118352)
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+stap -e 'probe process("/usr/libexec/qemu-kvm").function("main") { printf("") }' -c true
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+
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+qemu_kvm_OPT="-s4" # per-CPU buffer size, in megabytes
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diff --git a/scripts/systemtap/script.d/qemu_kvm.stp b/scripts/systemtap/script.d/qemu_kvm.stp
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new file mode 100644
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index 0000000000..c04abf9449
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--- /dev/null
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+++ b/scripts/systemtap/script.d/qemu_kvm.stp
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@@ -0,0 +1 @@
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+probe qemu.kvm.simpletrace.handle_qmp_command,qemu.kvm.simpletrace.monitor_protocol_*,qemu.kvm.simpletrace.migrate_set_state {}
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diff --git a/ui/vnc-auth-sasl.c b/ui/vnc-auth-sasl.c
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index 47fdae5b21..2a950caa2a 100644
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--- a/ui/vnc-auth-sasl.c
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+++ b/ui/vnc-auth-sasl.c
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@@ -42,7 +42,7 @@
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bool vnc_sasl_server_init(Error **errp)
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{
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- int saslErr = sasl_server_init(NULL, "qemu");
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+ int saslErr = sasl_server_init(NULL, "qemu-kvm");
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if (saslErr != SASL_OK) {
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error_setg(errp, "Failed to initialize SASL auth: %s",
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--
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2.39.3
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