Re: [libvirt] [PATCH 7/9] qemu: format intremap= on intel-iommu command line

Add the intremap= option to QEMU command line, corresponding to the <driver intremap> attribute of the iommu device. https://bugzilla.redhat.com/show_bug.cgi?id=1427005 --- src/qemu/qemu_capabilities.c | 8 ++++ src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 11 +++++ .../qemucapabilitiesdata/caps_2.4.0.x86_64.replies | 22 +++++++--- .../qemucapabilitiesdata/caps_2.5.0.x86_64.replies | 24 +++++++---- .../qemucapabilitiesdata/caps_2.6.0.x86_64.replies | 24 +++++++---- .../qemucapabilitiesdata/caps_2.7.0.x86_64.replies | 28 +++++++++---- tests/qemucapabilitiesdata/caps_2.7.0.x86_64.xml | 1 + .../qemucapabilitiesdata/caps_2.8.0.x86_64.replies | 37 ++++++++++++---- tests/qemucapabilitiesdata/caps_2.8.0.x86_64.xml | 1 + .../qemucapabilitiesdata/caps_2.9.0.x86_64.replies | 49 ++++++++++++++++++---- tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml | 1 + .../qemuxml2argv-intel-iommu-irqchip.args | 2 +- tests/qemuxml2argvtest.c | 1 + 14 files changed, 166 insertions(+), 44 deletions(-) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 278badf..e9cc754 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -364,6 +364,7 @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST, "query-cpu-definitions", /* 250 */ "kernel-irqchip", + "intel-iommu-intremap", ); @@ -1732,6 +1733,10 @@ static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsUSBNECXHCI[] = { { "p3", QEMU_CAPS_NEC_USB_XHCI_PORTS }, }; +static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsIntelIOMMU[] = { + { "intremap", QEMU_CAPS_INTEL_IOMMU_INTREMAP }, +}; + /* see documentation for virQEMUCapsQMPSchemaGetByPath for the query format */ static struct virQEMUCapsStringFlags virQEMUCapsQMPSchemaQueries[] = { { "blockdev-add/arg-type/options/+gluster/debug-level", QEMU_CAPS_GLUSTER_DEBUG_LEVEL}, @@ -1839,6 +1844,9 @@ static struct virQEMUCapsObjectTypeProps virQEMUCapsObjectProps[] = { { "nec-usb-xhci", virQEMUCapsObjectPropsUSBNECXHCI, ARRAY_CARDINALITY(virQEMUCapsObjectPropsUSBNECXHCI), -1 }, + { "intel-iommu", virQEMUCapsObjectPropsIntelIOMMU, + ARRAY_CARDINALITY(virQEMUCapsObjectPropsIntelIOMMU), + QEMU_CAPS_DEVICE_INTEL_IOMMU}, }; struct virQEMUCapsPropTypeObjects { diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index b9efab8..16db17f 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -400,6 +400,7 @@ typedef enum { /* 250 */ QEMU_CAPS_QUERY_CPU_DEFINITIONS, /* qmp query-cpu-definitions */ QEMU_CAPS_MACHINE_KERNEL_IRQCHIP, /* -machine kernel_irqchip */ + QEMU_CAPS_INTEL_IOMMU_INTREMAP, /* intel-iommu.intremap */ 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 c1c7f1a..ddd889d 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -6652,6 +6652,16 @@ qemuBuildIOMMUCommandLine(virCommandPtr cmd, return -1; } virBufferAddLit(&opts, "intel-iommu"); + if (iommu->intremap) {

+ if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_INTEL_IOMMU_INTREMAP)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("iommu: interrupt remapping is not supported " + "with this QEMU binary")); + goto cleanup; + } + virBufferAsprintf(&opts, ",intremap=%s", + virTristateSwitchTypeToString(iommu->intremap)); + } case VIR_DOMAIN_IOMMU_MODEL_LAST: break; } @@ -6659,6 +6669,7 @@ qemuBuildIOMMUCommandLine(virCommandPtr cmd, virCommandAddArgBuffer(cmd, &opts); ret = 0; + cleanup: virBufferFreeAndReset(&opts); return ret; }

diff --git a/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-irqchip.args b/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-irqchip.args index ebf9c3e..d704ee4 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-irqchip.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-irqchip.args @@ -16,4 +16,4 @@ QEMU_AUDIO_DRV=none \ -monitor unix:/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server,nowait \ -no-acpi \ -boot c \ --device intel-iommu +-device intel-iommu,intremap=on diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 11f6130..2051af9 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -2478,6 +2478,7 @@ mymain(void) DO_TEST("intel-iommu-irqchip", QEMU_CAPS_MACHINE_OPT, QEMU_CAPS_MACHINE_KERNEL_IRQCHIP, + QEMU_CAPS_INTEL_IOMMU_INTREMAP, QEMU_CAPS_DEVICE_INTEL_IOMMU); DO_TEST("cpu-hotplug-startup", QEMU_CAPS_QUERY_HOTPLUGGABLE_CPUS);