qemu-kvm/SOURCES/kvm-hw-ppc-Kconfig-Imply-VFIO_PCI.patch

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2024-04-30 11:41:18 +00:00
From 84f378c41832602dcf9bad6167b1f532c7c53e37 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= <clg@redhat.com>
Date: Tue, 21 Nov 2023 15:03:55 +0100
Subject: [PATCH 048/101] hw/ppc/Kconfig: Imply VFIO_PCI
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
RH-Author: Eric Auger <eric.auger@redhat.com>
RH-MergeRequest: 211: IOMMUFD backend backport
RH-Jira: RHEL-19302 RHEL-21057
RH-Acked-by: Cédric Le Goater <clg@redhat.com>
RH-Acked-by: Sebastian Ott <sebott@redhat.com>
RH-Commit: [47/67] c1a40cdab9bf62b16cb428d57a20b3e0eaa6de38 (eauger1/centos-qemu-kvm)
When the legacy and iommufd backends were introduced, a set of common
vfio-pci routines were exported in pci.c for both backends to use :
vfio_pci_pre_reset
vfio_pci_get_pci_hot_reset_info
vfio_pci_host_match
vfio_pci_post_reset
This introduced a build failure on PPC when --without-default-devices
is use because VFIO is always selected in ppc/Kconfig but VFIO_PCI is
not.
Use an 'imply VFIO_PCI' in ppc/Kconfig and bypass compilation of the
VFIO EEH hooks routines defined in hw/ppc/spapr_pci_vfio.c with
CONFIG_VFIO_PCI.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
(cherry picked from commit 4278df9d1d2383b738338c857406357660f11e42)
Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
hw/ppc/Kconfig | 2 +-
hw/ppc/spapr_pci_vfio.c | 36 ++++++++++++++++++++++++++++++++++++
2 files changed, 37 insertions(+), 1 deletion(-)
diff --git a/hw/ppc/Kconfig b/hw/ppc/Kconfig
index 56f0475a8e..44263a58c4 100644
--- a/hw/ppc/Kconfig
+++ b/hw/ppc/Kconfig
@@ -3,11 +3,11 @@ config PSERIES
imply PCI_DEVICES
imply TEST_DEVICES
imply VIRTIO_VGA
+ imply VFIO_PCI if LINUX # needed by spapr_pci_vfio.c
select NVDIMM
select DIMM
select PCI
select SPAPR_VSCSI
- select VFIO if LINUX # needed by spapr_pci_vfio.c
select XICS
select XIVE
select MSI_NONBROKEN
diff --git a/hw/ppc/spapr_pci_vfio.c b/hw/ppc/spapr_pci_vfio.c
index d1d07bec46..76b2a3487b 100644
--- a/hw/ppc/spapr_pci_vfio.c
+++ b/hw/ppc/spapr_pci_vfio.c
@@ -26,10 +26,12 @@
#include "hw/pci/pci_device.h"
#include "hw/vfio/vfio-common.h"
#include "qemu/error-report.h"
+#include CONFIG_DEVICES /* CONFIG_VFIO_PCI */
/*
* Interfaces for IBM EEH (Enhanced Error Handling)
*/
+#ifdef CONFIG_VFIO_PCI
static bool vfio_eeh_container_ok(VFIOContainer *container)
{
/*
@@ -314,3 +316,37 @@ int spapr_phb_vfio_eeh_configure(SpaprPhbState *sphb)
return RTAS_OUT_SUCCESS;
}
+
+#else
+
+bool spapr_phb_eeh_available(SpaprPhbState *sphb)
+{
+ return false;
+}
+
+void spapr_phb_vfio_reset(DeviceState *qdev)
+{
+}
+
+int spapr_phb_vfio_eeh_set_option(SpaprPhbState *sphb,
+ unsigned int addr, int option)
+{
+ return RTAS_OUT_NOT_SUPPORTED;
+}
+
+int spapr_phb_vfio_eeh_get_state(SpaprPhbState *sphb, int *state)
+{
+ return RTAS_OUT_NOT_SUPPORTED;
+}
+
+int spapr_phb_vfio_eeh_reset(SpaprPhbState *sphb, int option)
+{
+ return RTAS_OUT_NOT_SUPPORTED;
+}
+
+int spapr_phb_vfio_eeh_configure(SpaprPhbState *sphb)
+{
+ return RTAS_OUT_NOT_SUPPORTED;
+}
+
+#endif /* CONFIG_VFIO_PCI */
--
2.39.3