diff --git a/src/conf/domain_validate.c b/src/conf/domain_validate.c
index 88205c64e0..1c78a3d31c 100644
--- a/src/conf/domain_validate.c
+++ b/src/conf/domain_validate.c
@@ -2633,27 +2633,6 @@ virDomainIOMMUDefValidate(const virDomainIOMMUDef *iommu)
 {
     switch (iommu->model) {
     case VIR_DOMAIN_IOMMU_MODEL_SMMUV3:
-        if (iommu->intremap != VIR_TRISTATE_SWITCH_ABSENT ||
-            iommu->caching_mode != VIR_TRISTATE_SWITCH_ABSENT ||
-            iommu->eim != VIR_TRISTATE_SWITCH_ABSENT ||
-            iommu->iotlb != VIR_TRISTATE_SWITCH_ABSENT ||
-            iommu->aw_bits != 0) {
-            virReportError(VIR_ERR_XML_ERROR,
-                           _("iommu model '%s' doesn't support additional attributes"),
-                           virDomainIOMMUModelTypeToString(iommu->model));
-            return -1;
-        }
-        G_GNUC_FALLTHROUGH;
-
-    case VIR_DOMAIN_IOMMU_MODEL_INTEL:
-        if (iommu->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
-            virReportError(VIR_ERR_XML_ERROR,
-                           _("iommu model '%s' can't have address"),
-                           virDomainIOMMUModelTypeToString(iommu->model));
-            return -1;
-        }
-        break;
-
     case VIR_DOMAIN_IOMMU_MODEL_VIRTIO:
         if (iommu->intremap != VIR_TRISTATE_SWITCH_ABSENT ||
             iommu->caching_mode != VIR_TRISTATE_SWITCH_ABSENT ||
@@ -2667,6 +2646,23 @@ virDomainIOMMUDefValidate(const virDomainIOMMUDef *iommu)
         }
         break;
 
+    case VIR_DOMAIN_IOMMU_MODEL_INTEL:
+    case VIR_DOMAIN_IOMMU_MODEL_LAST:
+        break;
+    }
+
+    switch (iommu->model) {
+    case VIR_DOMAIN_IOMMU_MODEL_SMMUV3:
+    case VIR_DOMAIN_IOMMU_MODEL_INTEL:
+        if (iommu->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
+            virReportError(VIR_ERR_XML_ERROR,
+                           _("iommu model '%s' can't have address"),
+                           virDomainIOMMUModelTypeToString(iommu->model));
+            return -1;
+        }
+        break;
+
+    case VIR_DOMAIN_IOMMU_MODEL_VIRTIO:
     case VIR_DOMAIN_IOMMU_MODEL_LAST:
         break;
     }