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Wed, 26 Apr 2017 08:32:35 +0000 (UTC) X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Format the caching-mode option for the intel-iommu device, based on its attribute value. https://bugzilla.redhat.com/show_bug.cgi?id=3D1427005 --- src/qemu/qemu_capabilities.c | 3 +++ src/qemu/qemu_capabilities.h | 3 +++ src/qemu/qemu_command.c | 11 ++++++++++ tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml | 1 + .../qemuxml2argv-intel-iommu-caching.args | 25 ++++++++++++++++++= ++++ tests/qemuxml2argvtest.c | 11 ++++++++++ 6 files changed, 54 insertions(+) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-caching= .args diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 0c7d7b1..0e9afd2 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -366,6 +366,8 @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST, "query-named-block-nodes", "kernel-irqchip", "intel-iommu-intremap", + + "intel-iommu-caching", /* 255 */ ); =20 =20 @@ -1718,6 +1720,7 @@ static struct virQEMUCapsStringFlags virQEMUCapsObjec= tPropsUSBNECXHCI[] =3D { =20 static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsIntelIOMMU[] = =3D { { "intremap", QEMU_CAPS_INTEL_IOMMU_INTREMAP }, + { "caching-mode", QEMU_CAPS_INTEL_IOMMU_CACHING }, }; =20 /* see documentation for virQEMUCapsQMPSchemaGetByPath for the query forma= t */ diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index 4d19691..a3ff7e6 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -404,6 +404,9 @@ typedef enum { QEMU_CAPS_MACHINE_KERNEL_IRQCHIP, /* -machine kernel_irqchip */ QEMU_CAPS_INTEL_IOMMU_INTREMAP, /* intel-iommu.intremap */ =20 + /* 255 */ + QEMU_CAPS_INTEL_IOMMU_CACHING, /* intel-iommu.caching-mode */ + QEMU_CAPS_LAST /* this must always be the last item */ } virQEMUCapsFlags; =20 diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 07c4aeb..566bd87 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -6690,6 +6690,13 @@ qemuBuildIOMMUCommandLine(virCommandPtr cmd, "with this QEMU binary")); return -1; } + if (iommu->caching !=3D VIR_TRISTATE_SWITCH_ABSENT && + !virQEMUCapsGet(qemuCaps, QEMU_CAPS_INTEL_IOMMU_CACHING)) { + 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; @@ -6719,6 +6726,10 @@ qemuBuildIOMMUCommandLine(virCommandPtr cmd, virBufferAsprintf(&opts, ",intremap=3D%s", virTristateSwitchTypeToString(iommu->intrema= p)); } + if (iommu->caching !=3D VIR_TRISTATE_SWITCH_ABSENT) { + virBufferAsprintf(&opts, ",caching-mode=3D%s", + virTristateSwitchTypeToString(iommu->caching= )); + } case VIR_DOMAIN_IOMMU_MODEL_LAST: break; } diff --git a/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml b/tests/qemuc= apabilitiesdata/caps_2.9.0.x86_64.xml index 799c52a..0193492 100644 --- a/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml @@ -209,6 +209,7 @@ + 2008090 0 (v2.9.0-rc0-142-g940a8ce) diff --git a/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-caching.args b= /tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-caching.args new file mode 100644 index 0000000..1bec6d0 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-caching.args @@ -0,0 +1,25 @@ +LC_ALL=3DC \ +PATH=3D/bin \ +HOME=3D/home/test \ +USER=3Dtest \ +LOGNAME=3Dtest \ +QEMU_AUDIO_DRV=3Dnone \ +/usr/bin/qemu-system-x86_64 \ +-name QEMUGuest1 \ +-S \ +-machine q35,accel=3Dtcg \ +-m 214 \ +-smp 1,sockets=3D1,cores=3D1,threads=3D1 \ +-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=3Don,caching-mode=3Don \ +-device i82801b11-bridge,id=3Dpci.1,bus=3Dpcie.0,addr=3D0x1e \ +-device pci-bridge,chassis_nr=3D2,id=3Dpci.2,bus=3Dpci.1,addr=3D0x0 \ +-device ioh3420,port=3D0x10,chassis=3D3,id=3Dpci.3,bus=3Dpcie.0,addr=3D0x2= \ +-device ich9-usb-ehci1,id=3Dusb,bus=3Dpci.2,addr=3D0x2.0x7 \ +-device rtl8139,vlan=3D0,id=3Dnet0,mac=3D52:54:00:ab:0c:5c,bus=3Dpci.2,add= r=3D0x1 \ +-net user,vlan=3D0,name=3Dhostnet0 diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 29cd8b5..aab20c4 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -2497,6 +2497,17 @@ mymain(void) QEMU_CAPS_MACHINE_KERNEL_IRQCHIP, QEMU_CAPS_INTEL_IOMMU_INTREMAP, QEMU_CAPS_DEVICE_INTEL_IOMMU); + DO_TEST("intel-iommu-caching", + 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); =20 DO_TEST("cpu-hotplug-startup", QEMU_CAPS_QUERY_HOTPLUGGABLE_CPUS); =20 --=20 2.10.2 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list