qemu: Add validation for SMMUv3 IOMMU

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>

diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 980295204604e47ce603223fc0d681970ac5c526..3290cdae5fa617fdda0e51d0c134539fd7ea821b 100644 (file)
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -6136,6 +6136,20 @@ qemuDomainDeviceDefValidateIOMMU(const virDomainIOMMUDef *iommu,
         break;
 
     case VIR_DOMAIN_IOMMU_MODEL_SMMUV3:
+        if (!qemuDomainIsARMVirt(def)) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+                           _("IOMMU device: '%s' is only supported with "
+                             "ARM Virt machines"),
+                           virDomainIOMMUModelTypeToString(iommu->model));
+            return -1;
+        }
+        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_VIRT_IOMMU)) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+                           _("IOMMU device: '%s' is not supported with "
+                             "this QEMU binary"),
+                           virDomainIOMMUModelTypeToString(iommu->model));
+            return -1;
+        }
         break;
 
     case VIR_DOMAIN_IOMMU_MODEL_LAST: