Format the caching-mode option for the intel-iommu device, based on its <driver caching> attribute value. https://bugzilla.redhat.com/show_bug.cgi?id=1427005 --- src/qemu/qemu_capabilities.c | 2 ++ src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 11 ++++++++++ tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml | 1 + .../qemuxml2argv-intel-iommu-caching-mode.args | 25 ++++++++++++++++++++++ tests/qemuxml2argvtest.c | 11 ++++++++++ 6 files changed, 51 insertions(+) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-caching-mode.args diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 8458a29..9d50389 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -370,6 +370,7 @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST, "kernel-irqchip", /* 255 */ "kernel-irqchip.split", "intel-iommu.intremap", + "intel-iommu.caching-mode", ); @@ -1723,6 +1724,7 @@ static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsUSBNECXHCI[] = { static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsIntelIOMMU[] = { { "intremap", QEMU_CAPS_INTEL_IOMMU_INTREMAP }, + { "caching-mode", QEMU_CAPS_INTEL_IOMMU_CACHING_MODE }, }; /* see documentation for virQEMUCapsQMPSchemaGetByPath for the query format */ diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index 2810513..aa99fda 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -408,6 +408,7 @@ typedef enum { QEMU_CAPS_MACHINE_KERNEL_IRQCHIP, /* -machine kernel_irqchip */ QEMU_CAPS_MACHINE_KERNEL_IRQCHIP_SPLIT, /* -machine kernel_irqchip=split */ QEMU_CAPS_INTEL_IOMMU_INTREMAP, /* intel-iommu.intremap */ + QEMU_CAPS_INTEL_IOMMU_CACHING_MODE, /* intel-iommu.caching-mode */ QEMU_CAPS_LAST /* this must always be the last item */ } virQEMUCapsFlags; diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index f162e0a..d8d0dea 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -6694,6 +6694,13 @@ qemuBuildIOMMUCommandLine(virCommandPtr cmd, "with this QEMU binary")); return -1; } + if (iommu->caching_mode != VIR_TRISTATE_SWITCH_ABSENT && + !virQEMUCapsGet(qemuCaps, QEMU_CAPS_INTEL_IOMMU_CACHING_MODE)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("iommu: caching mode is not supported " + "with this QEMU binary")); + return -1; + } break; case VIR_DOMAIN_IOMMU_MODEL_LAST: break; @@ -6723,6 +6730,10 @@ qemuBuildIOMMUCommandLine(virCommandPtr cmd, virBufferAsprintf(&opts, ",intremap=%s", virTristateSwitchTypeToString(iommu->intremap)); } + if (iommu->caching_mode != VIR_TRISTATE_SWITCH_ABSENT) { + virBufferAsprintf(&opts, ",caching-mode=%s", + virTristateSwitchTypeToString(iommu->caching_mode)); + } case VIR_DOMAIN_IOMMU_MODEL_LAST: break; } diff --git a/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml index 0f273d6..19fe4b7 100644 --- a/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml @@ -213,6 +213,7 @@ <flag name='kernel-irqchip'/> <flag name='kernel-irqchip.split'/> <flag name='intel-iommu.intremap'/> + <flag name='intel-iommu.caching-mode'/> <version>2009000</version> <kvmVersion>0</kvmVersion> <package> (v2.9.0)</package> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-caching-mode.args b/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-caching-mode.args new file mode 100644 index 0000000..1bec6d0 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-caching-mode.args @@ -0,0 +1,25 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/home/test \ +USER=test \ +LOGNAME=test \ +QEMU_AUDIO_DRV=none \ +/usr/bin/qemu-system-x86_64 \ +-name QEMUGuest1 \ +-S \ +-machine q35,accel=tcg \ +-m 214 \ +-smp 1,sockets=1,cores=1,threads=1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-nographic \ +-nodefaults \ +-monitor unix:/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server,nowait \ +-no-acpi \ +-boot c \ +-device intel-iommu,intremap=on,caching-mode=on \ +-device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \ +-device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \ +-device ioh3420,port=0x10,chassis=3,id=pci.3,bus=pcie.0,addr=0x2 \ +-device ich9-usb-ehci1,id=usb,bus=pci.2,addr=0x2.0x7 \ +-device rtl8139,vlan=0,id=net0,mac=52:54:00:ab:0c:5c,bus=pci.2,addr=0x1 \ +-net user,vlan=0,name=hostnet0 diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index a554416..e308ffd 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -2515,6 +2515,17 @@ mymain(void) QEMU_CAPS_MACHINE_KERNEL_IRQCHIP_SPLIT, QEMU_CAPS_INTEL_IOMMU_INTREMAP, QEMU_CAPS_DEVICE_INTEL_IOMMU); + DO_TEST("intel-iommu-caching-mode", + QEMU_CAPS_MACHINE_OPT, + QEMU_CAPS_DEVICE_PCI_BRIDGE, + QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE, + QEMU_CAPS_DEVICE_IOH3420, + QEMU_CAPS_ICH9_AHCI, + QEMU_CAPS_PCI_MULTIFUNCTION, + QEMU_CAPS_ICH9_USB_EHCI1, + QEMU_CAPS_DEVICE_INTEL_IOMMU, + QEMU_CAPS_INTEL_IOMMU_INTREMAP, + QEMU_CAPS_INTEL_IOMMU_CACHING_MODE); DO_TEST("cpu-hotplug-startup", QEMU_CAPS_QUERY_HOTPLUGGABLE_CPUS); -- 2.10.2 -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
