qemu: pvscsi: Add support for vmpvscsi controller model

Availability of the vmpvscsi controller model is gated by the pvscsi
capability.
Signed-off-by: NChris Jester-Young <cky@cky.nz>
Reviewed-by: NPeter Krempa <pkrempa@redhat.com>

src/qemu/qemu_command.c

@@ -2573,9 +2573,11 @@ qemuBuildControllerDevStr(const virDomainDef *domainDef,
         case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_LSISAS1078:
             virBufferAddLit(&buf, "megasas");
             break;
+        case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VMPVSCSI:
+            virBufferAddLit(&buf, "pvscsi");
+            break;
         case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_AUTO:
         case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_BUSLOGIC:
-        case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VMPVSCSI:
             virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                            _("Unsupported controller model: %s"),
                            virDomainControllerModelSCSITypeToString(def->model));

src/qemu/qemu_validate.c

@@ -2362,9 +2362,16 @@ qemuValidateCheckSCSIControllerModel(virQEMUCapsPtr qemuCaps,
             return false;
         }
         break;
+    case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VMPVSCSI:
+        if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_SCSI_PVSCSI)) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                           _("This QEMU doesn't support "
+                             "the pvscsi (VMware paravirtual SCSI) controller"));
+            return false;
+        }
+        break;
     case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_AUTO:
     case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_BUSLOGIC:
-    case VIR_DOMAIN_CONTROLLER_MODEL_SCSI_VMPVSCSI:
         virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                        _("Unsupported controller model: %s"),
                        virDomainControllerModelSCSITypeToString(model));