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no-senders; approved; loop; banned-address; header-match-devel.lists.libvirt.org-0; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: nathanc@nvidia.com, clg@redhat.com, Zhenzhong Duan X-Mailman-Version: 3.3.10 Precedence: list List-Id: Development discussions about the libvirt library & tools Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1766056754688154100 Content-Type: text/plain; charset="utf-8" They indicate if qemu supports a virtual vtd with scalable mode and first stage translation. Signed-off-by: Zhenzhong Duan --- src/qemu/qemu_capabilities.c | 4 ++++ src/qemu/qemu_capabilities.h | 2 ++ tests/qemucapabilitiesdata/caps_10.0.0_x86_64+amdsev.xml | 2 ++ tests/qemucapabilitiesdata/caps_10.0.0_x86_64.xml | 2 ++ tests/qemucapabilitiesdata/caps_10.1.0_x86_64+inteltdx.xml | 2 ++ tests/qemucapabilitiesdata/caps_10.1.0_x86_64.xml | 2 ++ tests/qemucapabilitiesdata/caps_10.2.0_x86_64.xml | 2 ++ tests/qemucapabilitiesdata/caps_6.2.0_x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_7.0.0_x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_7.1.0_x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_7.2.0_x86_64+hvf.xml | 1 + tests/qemucapabilitiesdata/caps_7.2.0_x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_8.0.0_x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_8.1.0_x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_8.2.0_x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_9.0.0_x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_9.1.0_x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_9.2.0_x86_64+amdsev.xml | 1 + tests/qemucapabilitiesdata/caps_9.2.0_x86_64.xml | 1 + 19 files changed, 28 insertions(+) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index cee7a0f5ef..6fae4a6ba7 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -748,6 +748,8 @@ VIR_ENUM_IMPL(virQEMUCaps, "acpi-generic-initiator", /* QEMU_CAPS_ACPI_GENERIC_INITIATO= R */ "disk-timed-stats", /* QEMU_CAPS_DISK_TIMED_STATS */ "query-accelerators", /* QEMU_CAPS_QUERY_ACCELERATORS */ + "intel-iommu.x-scalable-mode", /* QEMU_CAPS_INTEL_IOMMU_SCAL= ABLE_MODE */ + "intel-iommu.x-flts", /* QEMU_CAPS_INTEL_IOMMU_FIRST_STAGE */ ); =20 =20 @@ -1565,6 +1567,8 @@ static struct virQEMUCapsDevicePropsFlags virQEMUCaps= DevicePropsIntelIOMMU[] =3D { { "device-iotlb", QEMU_CAPS_INTEL_IOMMU_DEVICE_IOTLB, NULL }, { "aw-bits", QEMU_CAPS_INTEL_IOMMU_AW_BITS, NULL }, { "dma-translation", QEMU_CAPS_INTEL_IOMMU_DMA_TRANSLATION, NULL }, + { "x-scalable-mode", QEMU_CAPS_INTEL_IOMMU_SCALABLE_MODE, NULL }, + { "x-flts", QEMU_CAPS_INTEL_IOMMU_FIRST_STAGE, NULL }, }; =20 static struct virQEMUCapsDevicePropsFlags virQEMUCapsDevicePropsMCH[] =3D { diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index efbef2acef..0c94b1f11d 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -729,6 +729,8 @@ typedef enum { /* virQEMUCapsFlags grouping marker for = syntax-check */ QEMU_CAPS_ACPI_GENERIC_INITIATOR, /* -object acpi-generic-initiator */ QEMU_CAPS_DISK_TIMED_STATS, /* timed stats support ('stats-intervals' = property of disk frontends) */ QEMU_CAPS_QUERY_ACCELERATORS, /* query-accelerators command */ + QEMU_CAPS_INTEL_IOMMU_SCALABLE_MODE, /* intel-iommu.x-scalable-mode */ + QEMU_CAPS_INTEL_IOMMU_FIRST_STAGE, /* intel-iommu.x-flts */ =20 QEMU_CAPS_LAST /* this must always be the last item */ } virQEMUCapsFlags; diff --git a/tests/qemucapabilitiesdata/caps_10.0.0_x86_64+amdsev.xml b/tes= ts/qemucapabilitiesdata/caps_10.0.0_x86_64+amdsev.xml index cfce1c963d..692fb12a81 100644 --- a/tests/qemucapabilitiesdata/caps_10.0.0_x86_64+amdsev.xml +++ b/tests/qemucapabilitiesdata/caps_10.0.0_x86_64+amdsev.xml @@ -209,6 +209,8 @@ + + 10000000 43100285 v10.0.0 diff --git a/tests/qemucapabilitiesdata/caps_10.0.0_x86_64.xml b/tests/qemu= capabilitiesdata/caps_10.0.0_x86_64.xml index f94c8388d6..f3c1672d68 100644 --- a/tests/qemucapabilitiesdata/caps_10.0.0_x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_10.0.0_x86_64.xml @@ -209,6 +209,8 @@ + + 10000000 43100285 v10.0.0 diff --git a/tests/qemucapabilitiesdata/caps_10.1.0_x86_64+inteltdx.xml b/t= ests/qemucapabilitiesdata/caps_10.1.0_x86_64+inteltdx.xml index 8e989a139f..786e48798e 100644 --- a/tests/qemucapabilitiesdata/caps_10.1.0_x86_64+inteltdx.xml +++ b/tests/qemucapabilitiesdata/caps_10.1.0_x86_64+inteltdx.xml @@ -191,6 +191,8 @@ + + 10000050 43100286 v10.0.0-1724-gf9a3def17b diff --git a/tests/qemucapabilitiesdata/caps_10.1.0_x86_64.xml b/tests/qemu= capabilitiesdata/caps_10.1.0_x86_64.xml index 520a3d8ee8..cc94f37561 100644 --- a/tests/qemucapabilitiesdata/caps_10.1.0_x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_10.1.0_x86_64.xml @@ -214,6 +214,8 @@ + + 10001000 43100286 v10.1.0 diff --git a/tests/qemucapabilitiesdata/caps_10.2.0_x86_64.xml b/tests/qemu= capabilitiesdata/caps_10.2.0_x86_64.xml index 371680778c..f2aee23224 100644 --- a/tests/qemucapabilitiesdata/caps_10.2.0_x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_10.2.0_x86_64.xml @@ -215,6 +215,8 @@ + + 10001050 43100287 v10.1.0-1969-g53b41bb789 diff --git a/tests/qemucapabilitiesdata/caps_6.2.0_x86_64.xml b/tests/qemuc= apabilitiesdata/caps_6.2.0_x86_64.xml index 108e75bee8..8a920d485d 100644 --- a/tests/qemucapabilitiesdata/caps_6.2.0_x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_6.2.0_x86_64.xml @@ -175,6 +175,7 @@ + 6002000 43100244 v6.2.0 diff --git a/tests/qemucapabilitiesdata/caps_7.0.0_x86_64.xml b/tests/qemuc= apabilitiesdata/caps_7.0.0_x86_64.xml index 1723e65499..992ba9d5e5 100644 --- a/tests/qemucapabilitiesdata/caps_7.0.0_x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_7.0.0_x86_64.xml @@ -183,6 +183,7 @@ + 7000000 43100243 v7.0.0 diff --git a/tests/qemucapabilitiesdata/caps_7.1.0_x86_64.xml b/tests/qemuc= apabilitiesdata/caps_7.1.0_x86_64.xml index 4deaf4fd1c..42a19bec5f 100644 --- a/tests/qemucapabilitiesdata/caps_7.1.0_x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_7.1.0_x86_64.xml @@ -188,6 +188,7 @@ + 7001000 43100244 v7.1.0 diff --git a/tests/qemucapabilitiesdata/caps_7.2.0_x86_64+hvf.xml b/tests/q= emucapabilitiesdata/caps_7.2.0_x86_64+hvf.xml index cbfc830f2c..1373fca4cf 100644 --- a/tests/qemucapabilitiesdata/caps_7.2.0_x86_64+hvf.xml +++ b/tests/qemucapabilitiesdata/caps_7.2.0_x86_64+hvf.xml @@ -192,6 +192,7 @@ + 7002000 43100245 v7.2.0 diff --git a/tests/qemucapabilitiesdata/caps_7.2.0_x86_64.xml b/tests/qemuc= apabilitiesdata/caps_7.2.0_x86_64.xml index 913f96e91a..1399dc45b7 100644 --- a/tests/qemucapabilitiesdata/caps_7.2.0_x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_7.2.0_x86_64.xml @@ -192,6 +192,7 @@ + 7002000 43100245 v7.2.0 diff --git a/tests/qemucapabilitiesdata/caps_8.0.0_x86_64.xml b/tests/qemuc= apabilitiesdata/caps_8.0.0_x86_64.xml index 592df7049b..f328b0e24a 100644 --- a/tests/qemucapabilitiesdata/caps_8.0.0_x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_8.0.0_x86_64.xml @@ -196,6 +196,7 @@ + 8000000 43100244 v8.0.0 diff --git a/tests/qemucapabilitiesdata/caps_8.1.0_x86_64.xml b/tests/qemuc= apabilitiesdata/caps_8.1.0_x86_64.xml index 9141faa7b9..eea93a76cc 100644 --- a/tests/qemucapabilitiesdata/caps_8.1.0_x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_8.1.0_x86_64.xml @@ -198,6 +198,7 @@ + 8001000 43100245 v8.1.0 diff --git a/tests/qemucapabilitiesdata/caps_8.2.0_x86_64.xml b/tests/qemuc= apabilitiesdata/caps_8.2.0_x86_64.xml index 12aa9c23fd..28783a623e 100644 --- a/tests/qemucapabilitiesdata/caps_8.2.0_x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_8.2.0_x86_64.xml @@ -201,6 +201,7 @@ + 8002000 43100246 v8.2.0 diff --git a/tests/qemucapabilitiesdata/caps_9.0.0_x86_64.xml b/tests/qemuc= apabilitiesdata/caps_9.0.0_x86_64.xml index 1f2e27a218..c2c2353464 100644 --- a/tests/qemucapabilitiesdata/caps_9.0.0_x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_9.0.0_x86_64.xml @@ -204,6 +204,7 @@ + 9000000 43100245 v9.0.0 diff --git a/tests/qemucapabilitiesdata/caps_9.1.0_x86_64.xml b/tests/qemuc= apabilitiesdata/caps_9.1.0_x86_64.xml index 35ddf30736..f6a3b7ddf3 100644 --- a/tests/qemucapabilitiesdata/caps_9.1.0_x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_9.1.0_x86_64.xml @@ -203,6 +203,7 @@ + 9001000 43100246 v9.1.0 diff --git a/tests/qemucapabilitiesdata/caps_9.2.0_x86_64+amdsev.xml b/test= s/qemucapabilitiesdata/caps_9.2.0_x86_64+amdsev.xml index 0e52c3e23d..8f5ecc61a5 100644 --- a/tests/qemucapabilitiesdata/caps_9.2.0_x86_64+amdsev.xml +++ b/tests/qemucapabilitiesdata/caps_9.2.0_x86_64+amdsev.xml @@ -207,6 +207,7 @@ + 9002000 43100247 v9.2.0 diff --git a/tests/qemucapabilitiesdata/caps_9.2.0_x86_64.xml b/tests/qemuc= apabilitiesdata/caps_9.2.0_x86_64.xml index 95f8a4d878..c588199582 100644 --- a/tests/qemucapabilitiesdata/caps_9.2.0_x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_9.2.0_x86_64.xml @@ -205,6 +205,7 @@ + 9002000 43100247 v9.2.0 --=20 2.47.3 From nobody Thu Jan 8 12:14:05 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.libvirt.org designates 8.43.85.245 as permitted sender) client-ip=8.43.85.245; envelope-from=devel-bounces@lists.libvirt.org; helo=lists.libvirt.org; Received-SPF: pass (zohomail.com: domain of lists.libvirt.org designates 8.43.85.245 as permitted sender) client-ip=8.43.85.245; envelope-from=devel-bounces@lists.libvirt.org; helo=lists.libvirt.org; Authentication-Results: mx.zohomail.com; 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X-IronPort-AV: E=Sophos;i="6.21,158,1763452800"; d="scan'208";a="202948703" From: Zhenzhong Duan To: devel@lists.libvirt.org Subject: [PATCH 2/3] conf: add support for 'scalable_mode' and 'first_stage' attributes to intel IOMMU Date: Thu, 18 Dec 2025 06:04:48 -0500 Message-ID: <20251218110449.53658-3-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20251218110449.53658-1-zhenzhong.duan@intel.com> References: <20251218110449.53658-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Message-ID-Hash: ZRHNBTZ3DBYJ5WP2WWVWIT6ZYU52SCDI X-Message-ID-Hash: ZRHNBTZ3DBYJ5WP2WWVWIT6ZYU52SCDI X-MailFrom: zhenzhong.duan@intel.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; loop; banned-address; header-match-devel.lists.libvirt.org-0; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: nathanc@nvidia.com, clg@redhat.com, Zhenzhong Duan X-Mailman-Version: 3.3.10 Precedence: list List-Id: Development discussions about the libvirt library & tools Archived-At: List-Archive: <> List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1766056921396158500 Content-Type: text/plain; charset="utf-8" Correspond to 'x-scalable-mode' and 'x-flts' properties in QEMU. Signed-off-by: Zhenzhong Duan --- docs/formatdomain.rst | 8 +++++++ src/conf/domain_conf.c | 35 ++++++++++++++++++++++++++++++- src/conf/domain_conf.h | 2 ++ src/conf/domain_validate.c | 6 ++++++ src/conf/schemas/domaincommon.rng | 10 +++++++++ 5 files changed, 60 insertions(+), 1 deletion(-) diff --git a/docs/formatdomain.rst b/docs/formatdomain.rst index dcb24b1b23..cd130a3f51 100644 --- a/docs/formatdomain.rst +++ b/docs/formatdomain.rst @@ -9250,6 +9250,14 @@ Example: The ``pciBus`` attribute notes the index of the controller that an IOMMU device is attached to. (QEMU/KVM and ``smmuv3`` model only) =20 + ``scalable_mode`` + Enable scalable mode DMA translation. + :since:`Since 11.11.0` (QEMU/KVM and ``intel`` model only) + + ``first_stage`` + Enable first stage translation. + :since:`Since 11.11.0` (QEMU/KVM and ``intel`` model only) + The ``virtio`` IOMMU devices can further have ``address`` element as descr= ibed in `Device addresses`_ (address has to by type of ``pci``). =20 diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 6e47ccb23d..5fd573c66b 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -14507,6 +14507,15 @@ virDomainIOMMUDefParseXML(virDomainXMLOption *xmlo= pt, if (virXMLPropInt(driver, "pciBus", 10, VIR_XML_PROP_NONE, &iommu->pci_bus, -1) < 0) return NULL; + + if (virXMLPropTristateSwitch(driver, "scalable_mode", VIR_XML_PROP= _NONE, + &iommu->scalable_mode) < 0) + return NULL; + + if (virXMLPropTristateSwitch(driver, "first_stage", VIR_XML_PROP_N= ONE, + &iommu->fsts) < 0) + return NULL; + } =20 if (virDomainDeviceInfoParseXML(xmlopt, node, ctxt, @@ -16558,7 +16567,9 @@ virDomainIOMMUDefEquals(const virDomainIOMMUDef *a, a->eim !=3D b->eim || a->iotlb !=3D b->iotlb || a->aw_bits !=3D b->aw_bits || - a->dma_translation !=3D b->dma_translation) + a->dma_translation !=3D b->dma_translation || + a->scalable_mode !=3D b->scalable_mode || + a->fsts !=3D b->fsts) return false; =20 if (a->info.type !=3D VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE && @@ -22260,6 +22271,20 @@ virDomainIOMMUDefCheckABIStability(virDomainIOMMUD= ef *src, virTristateSwitchTypeToString(src->xtsup)); return false; } + if (src->scalable_mode !=3D dst->scalable_mode) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("Target domain IOMMU device dma translation '%1$s= ' does not match source '%2$s'"), + virTristateSwitchTypeToString(dst->scalable_mode), + virTristateSwitchTypeToString(src->scalable_mode)); + return false; + } + if (src->fsts !=3D dst->fsts) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("Target domain IOMMU device dma translation '%1$s= ' does not match source '%2$s'"), + virTristateSwitchTypeToString(dst->fsts), + virTristateSwitchTypeToString(src->fsts)); + return false; + } =20 return virDomainDeviceInfoCheckABIStability(&src->info, &dst->info); } @@ -28574,6 +28599,14 @@ virDomainIOMMUDefFormat(virBuffer *buf, virBufferAsprintf(&driverAttrBuf, " xtsup=3D'%s'", virTristateSwitchTypeToString(iommu->xtsup)); } + if (iommu->scalable_mode !=3D VIR_TRISTATE_SWITCH_ABSENT) { + virBufferAsprintf(&driverAttrBuf, " scalable_mode=3D'%s'", + virTristateSwitchTypeToString(iommu->scalable_mo= de)); + } + if (iommu->fsts !=3D VIR_TRISTATE_SWITCH_ABSENT) { + virBufferAsprintf(&driverAttrBuf, " first_stage=3D'%s'", + virTristateSwitchTypeToString(iommu->fsts)); + } if (iommu->pci_bus >=3D 0) { virBufferAsprintf(&driverAttrBuf, " pciBus=3D'%d'", iommu->pci_bus); diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index da4ce9fc86..6e381e9b5a 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -3063,6 +3063,8 @@ struct _virDomainIOMMUDef { virTristateSwitch dma_translation; virTristateSwitch xtsup; virTristateSwitch pt; + virTristateSwitch scalable_mode; + virTristateSwitch fsts; }; =20 typedef enum { diff --git a/src/conf/domain_validate.c b/src/conf/domain_validate.c index 8bbea5f000..27fe2b490e 100644 --- a/src/conf/domain_validate.c +++ b/src/conf/domain_validate.c @@ -3119,6 +3119,8 @@ virDomainIOMMUDefValidate(const virDomainIOMMUDef *io= mmu) iommu->aw_bits !=3D 0 || iommu->dma_translation !=3D VIR_TRISTATE_SWITCH_ABSENT || iommu->xtsup !=3D VIR_TRISTATE_SWITCH_ABSENT || + iommu->scalable_mode !=3D VIR_TRISTATE_SWITCH_ABSENT || + iommu->fsts !=3D VIR_TRISTATE_SWITCH_ABSENT || iommu->pt !=3D VIR_TRISTATE_SWITCH_ABSENT) { virReportError(VIR_ERR_XML_ERROR, _("iommu model '%1$s' doesn't support some addi= tional attributes"), @@ -3133,6 +3135,8 @@ virDomainIOMMUDefValidate(const virDomainIOMMUDef *io= mmu) iommu->iotlb !=3D VIR_TRISTATE_SWITCH_ABSENT || iommu->aw_bits !=3D 0 || iommu->dma_translation !=3D VIR_TRISTATE_SWITCH_ABSENT || + iommu->scalable_mode !=3D VIR_TRISTATE_SWITCH_ABSENT || + iommu->fsts !=3D VIR_TRISTATE_SWITCH_ABSENT || iommu->pci_bus >=3D 0) { virReportError(VIR_ERR_XML_ERROR, _("iommu model '%1$s' doesn't support additiona= l attributes"), @@ -3146,6 +3150,8 @@ virDomainIOMMUDefValidate(const virDomainIOMMUDef *io= mmu) iommu->eim !=3D VIR_TRISTATE_SWITCH_ABSENT || iommu->aw_bits !=3D 0 || iommu->dma_translation !=3D VIR_TRISTATE_SWITCH_ABSENT || + iommu->scalable_mode !=3D VIR_TRISTATE_SWITCH_ABSENT || + iommu->fsts !=3D VIR_TRISTATE_SWITCH_ABSENT || iommu->pci_bus >=3D 0) { virReportError(VIR_ERR_XML_ERROR, _("iommu model '%1$s' doesn't support some addi= tional attributes"), diff --git a/src/conf/schemas/domaincommon.rng b/src/conf/schemas/domaincom= mon.rng index 78cf0a08cf..394f23ff4d 100644 --- a/src/conf/schemas/domaincommon.rng +++ b/src/conf/schemas/domaincommon.rng @@ -6332,6 +6332,16 @@ + + + + + + + + + + --=20 2.47.3 From nobody Thu Jan 8 12:14:05 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.libvirt.org designates 8.43.85.245 as permitted sender) client-ip=8.43.85.245; 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no-senders; approved; loop; banned-address; header-match-devel.lists.libvirt.org-0; emergency; member-moderation; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header CC: nathanc@nvidia.com, clg@redhat.com, Zhenzhong Duan X-Mailman-Version: 3.3.10 Precedence: list List-Id: Development discussions about the libvirt library & tools Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1766056347758154100 Content-Type: text/plain; charset="utf-8" Add support for generating QEMU command line with 'x-scalable-mode=3Don,x-f= lts=3Don'. Signed-off-by: Zhenzhong Duan --- src/qemu/qemu_command.c | 2 ++ src/qemu/qemu_validate.c | 12 ++++++++++++ 2 files changed, 14 insertions(+) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 99c310cf31..6cd07d6f53 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -6338,6 +6338,8 @@ qemuBuildIOMMUCommandLine(virCommand *cmd, "T:device-iotlb", iommu->iotlb, "z:aw-bits", iommu->aw_bits, "T:dma-translation", iommu->dma_tran= slation, + "T:x-scalable-mode", iommu->scalable= _mode, + "T:x-flts", iommu->fsts, NULL) < 0) return -1; =20 diff --git a/src/qemu/qemu_validate.c b/src/qemu/qemu_validate.c index da08fd17cd..c3739ac4b3 100644 --- a/src/qemu/qemu_validate.c +++ b/src/qemu/qemu_validate.c @@ -5683,6 +5683,18 @@ qemuValidateDomainDeviceDefIOMMU(const virDomainIOMM= UDef *iommu, _("iommu: updating dma translation is not supported= with this QEMU binary")); return -1; } + if (iommu->scalable_mode !=3D VIR_TRISTATE_SWITCH_ABSENT && + !virQEMUCapsGet(qemuCaps, QEMU_CAPS_INTEL_IOMMU_SCALABLE_MODE)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("iommu: x-scalable-mode is not supported with thi= s QEMU binary")); + return -1; + } + if (iommu->fsts !=3D VIR_TRISTATE_SWITCH_ABSENT && + !virQEMUCapsGet(qemuCaps, QEMU_CAPS_INTEL_IOMMU_FIRST_STAGE)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("iommu: x-flts is not supported with this QEMU bi= nary")); + return -1; + } =20 return 0; } --=20 2.47.3