diff --git a/src/conf/snapshot_conf.c b/src/conf/snapshot_conf.c
index b571c5cc41..dd281d57fe 100644
--- a/src/conf/snapshot_conf.c
+++ b/src/conf/snapshot_conf.c
@@ -88,7 +88,7 @@ void virDomainSnapshotDefFree(virDomainSnapshotDefPtr def)
     if (!def)
         return;
 
-    virDomainMomentDefClear(&def->common);
+    virDomainMomentDefClear(&def->parent);
     VIR_FREE(def->file);
     for (i = 0; i < def->ndisks; i++)
         virDomainSnapshotDiskDefClear(&def->disks[i]);
@@ -208,8 +208,8 @@ virDomainSnapshotDefParse(xmlXPathContextPtr ctxt,
     if (VIR_ALLOC(def) < 0)
         goto cleanup;
 
-    def->common.name = virXPathString("string(./name)", ctxt);
-    if (def->common.name == NULL) {
+    def->parent.name = virXPathString("string(./name)", ctxt);
+    if (def->parent.name == NULL) {
         if (flags & VIR_DOMAIN_SNAPSHOT_PARSE_REDEFINE) {
             virReportError(VIR_ERR_XML_ERROR, "%s",
                            _("a redefined snapshot must have a name"));
@@ -217,17 +217,17 @@ virDomainSnapshotDefParse(xmlXPathContextPtr ctxt,
         }
     }
 
-    def->common.description = virXPathString("string(./description)", ctxt);
+    def->parent.description = virXPathString("string(./description)", ctxt);
 
     if (flags & VIR_DOMAIN_SNAPSHOT_PARSE_REDEFINE) {
         if (virXPathLongLong("string(./creationTime)", ctxt,
-                             &def->common.creationTime) < 0) {
+                             &def->parent.creationTime) < 0) {
             virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                            _("missing creationTime from existing snapshot"));
             goto cleanup;
         }
 
-        def->common.parent_name = virXPathString("string(./parent/name)", ctxt);
+        def->parent.parent_name = virXPathString("string(./parent/name)", ctxt);
 
         state = virXPathString("string(./state)", ctxt);
         if (state == NULL) {
@@ -263,14 +263,14 @@ virDomainSnapshotDefParse(xmlXPathContextPtr ctxt,
                                _("missing domain in snapshot"));
                 goto cleanup;
             }
-            def->common.dom = virDomainDefParseNode(ctxt->node->doc, domainNode,
+            def->parent.dom = virDomainDefParseNode(ctxt->node->doc, domainNode,
                                                     caps, xmlopt, NULL, domainflags);
-            if (!def->common.dom)
+            if (!def->parent.dom)
                 goto cleanup;
         } else {
             VIR_WARN("parsing older snapshot that lacks domain");
         }
-    } else if (virDomainXMLOptionRunMomentPostParse(xmlopt, &def->common) < 0) {
+    } else if (virDomainXMLOptionRunMomentPostParse(xmlopt, &def->parent) < 0) {
         goto cleanup;
     }
 
@@ -422,7 +422,7 @@ virDomainSnapshotDefParseString(const char *xmlStr,
 
 
 /* Perform sanity checking on a redefined snapshot definition. If
- * @other is non-NULL, this may include swapping def->common.dom from other
+ * @other is non-NULL, this may include swapping def->parent.dom from other
  * into def. */
 int
 virDomainSnapshotRedefineValidate(virDomainSnapshotDefPtr def,
@@ -440,17 +440,17 @@ virDomainSnapshotRedefineValidate(virDomainSnapshotDefPtr def,
         virReportError(VIR_ERR_INVALID_ARG,
                        _("disk-only flag for snapshot %s requires "
                          "disk-snapshot state"),
-                       def->common.name);
+                       def->parent.name);
         return -1;
     }
-    if (def->common.dom && memcmp(def->common.dom->uuid, domain_uuid,
+    if (def->parent.dom && memcmp(def->parent.dom->uuid, domain_uuid,
                                   VIR_UUID_BUFLEN)) {
         char uuidstr[VIR_UUID_STRING_BUFLEN];
 
         virUUIDFormat(domain_uuid, uuidstr);
         virReportError(VIR_ERR_INVALID_ARG,
                        _("definition for snapshot %s must use uuid %s"),
-                       def->common.name, uuidstr);
+                       def->parent.name, uuidstr);
         return -1;
     }
 
@@ -464,7 +464,7 @@ virDomainSnapshotRedefineValidate(virDomainSnapshotDefPtr def,
             virReportError(VIR_ERR_INVALID_ARG,
                            _("cannot change between online and offline "
                              "snapshot state in snapshot %s"),
-                           def->common.name);
+                           def->parent.name);
             return -1;
         }
 
@@ -473,23 +473,23 @@ virDomainSnapshotRedefineValidate(virDomainSnapshotDefPtr def,
             virReportError(VIR_ERR_INVALID_ARG,
                            _("cannot change between disk only and "
                              "full system in snapshot %s"),
-                           def->common.name);
+                           def->parent.name);
             return -1;
         }
 
-        if (otherdef->common.dom) {
-            if (def->common.dom) {
-                if (!virDomainDefCheckABIStability(otherdef->common.dom,
-                                                   def->common.dom, xmlopt))
+        if (otherdef->parent.dom) {
+            if (def->parent.dom) {
+                if (!virDomainDefCheckABIStability(otherdef->parent.dom,
+                                                   def->parent.dom, xmlopt))
                     return -1;
             } else {
                 /* Transfer the domain def */
-                VIR_STEAL_PTR(def->common.dom, otherdef->common.dom);
+                VIR_STEAL_PTR(def->parent.dom, otherdef->parent.dom);
             }
         }
     }
 
-    if (def->common.dom) {
+    if (def->parent.dom) {
         if (external) {
             align_location = VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL;
             align_match = false;
@@ -536,7 +536,7 @@ virDomainSnapshotDefAssignExternalNames(virDomainSnapshotDefPtr def)
             return -1;
         }
 
-        if (!(origpath = virDomainDiskGetSource(def->common.dom->disks[i]))) {
+        if (!(origpath = virDomainDiskGetSource(def->parent.dom->disks[i]))) {
             virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
                            _("cannot generate external snapshot name "
                              "for disk '%s' without source"),
@@ -560,7 +560,7 @@ virDomainSnapshotDefAssignExternalNames(virDomainSnapshotDefPtr def)
         if ((tmp = strrchr(tmppath, '.')) && !strchr(tmp, '/'))
             *tmp = '\0';
 
-        if (virAsprintf(&disk->src->path, "%s.%s", tmppath, def->common.name) < 0) {
+        if (virAsprintf(&disk->src->path, "%s.%s", tmppath, def->parent.name) < 0) {
             VIR_FREE(tmppath);
             return -1;
         }
@@ -593,7 +593,7 @@ virDomainSnapshotCompareDiskIndex(const void *a, const void *b)
     return diska->idx - diskb->idx;
 }
 
-/* Align def->disks to def->common.dom.  Sort the list of def->disks,
+/* Align def->disks to def->parent.dom.  Sort the list of def->disks,
  * filling in any missing disks or snapshot state defaults given by
  * the domain, with a fallback to a passed in default.  Convert paths
  * to disk targets for uniformity.  Issue an error and return -1 if
@@ -610,31 +610,31 @@ virDomainSnapshotAlignDisks(virDomainSnapshotDefPtr def,
     size_t i;
     int ndisks;
 
-    if (!def->common.dom) {
+    if (!def->parent.dom) {
         virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                        _("missing domain in snapshot"));
         goto cleanup;
     }
 
-    if (def->ndisks > def->common.dom->ndisks) {
+    if (def->ndisks > def->parent.dom->ndisks) {
         virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
                        _("too many disk snapshot requests for domain"));
         goto cleanup;
     }
 
     /* Unlikely to have a guest without disks but technically possible.  */
-    if (!def->common.dom->ndisks) {
+    if (!def->parent.dom->ndisks) {
         ret = 0;
         goto cleanup;
     }
 
-    if (!(map = virBitmapNew(def->common.dom->ndisks)))
+    if (!(map = virBitmapNew(def->parent.dom->ndisks)))
         goto cleanup;
 
     /* Double check requested disks.  */
     for (i = 0; i < def->ndisks; i++) {
         virDomainSnapshotDiskDefPtr disk = &def->disks[i];
-        int idx = virDomainDiskIndexByName(def->common.dom, disk->name, false);
+        int idx = virDomainDiskIndexByName(def->parent.dom, disk->name, false);
         int disk_snapshot;
 
         if (idx < 0) {
@@ -652,7 +652,7 @@ virDomainSnapshotAlignDisks(virDomainSnapshotDefPtr def,
         ignore_value(virBitmapSetBit(map, idx));
         disk->idx = idx;
 
-        disk_snapshot = def->common.dom->disks[idx]->snapshot;
+        disk_snapshot = def->parent.dom->disks[idx]->snapshot;
         if (!disk->snapshot) {
             if (disk_snapshot &&
                 (!require_match ||
@@ -680,9 +680,9 @@ virDomainSnapshotAlignDisks(virDomainSnapshotDefPtr def,
                            disk->src->path, disk->name);
             goto cleanup;
         }
-        if (STRNEQ(disk->name, def->common.dom->disks[idx]->dst)) {
+        if (STRNEQ(disk->name, def->parent.dom->disks[idx]->dst)) {
             VIR_FREE(disk->name);
-            if (VIR_STRDUP(disk->name, def->common.dom->disks[idx]->dst) < 0)
+            if (VIR_STRDUP(disk->name, def->parent.dom->disks[idx]->dst) < 0)
                 goto cleanup;
         }
     }
@@ -690,10 +690,10 @@ virDomainSnapshotAlignDisks(virDomainSnapshotDefPtr def,
     /* Provide defaults for all remaining disks.  */
     ndisks = def->ndisks;
     if (VIR_EXPAND_N(def->disks, def->ndisks,
-                     def->common.dom->ndisks - def->ndisks) < 0)
+                     def->parent.dom->ndisks - def->ndisks) < 0)
         goto cleanup;
 
-    for (i = 0; i < def->common.dom->ndisks; i++) {
+    for (i = 0; i < def->parent.dom->ndisks; i++) {
         virDomainSnapshotDiskDefPtr disk;
 
         if (virBitmapIsBitSet(map, i))
@@ -701,15 +701,15 @@ virDomainSnapshotAlignDisks(virDomainSnapshotDefPtr def,
         disk = &def->disks[ndisks++];
         if (!(disk->src = virStorageSourceNew()))
             goto cleanup;
-        if (VIR_STRDUP(disk->name, def->common.dom->disks[i]->dst) < 0)
+        if (VIR_STRDUP(disk->name, def->parent.dom->disks[i]->dst) < 0)
             goto cleanup;
         disk->idx = i;
 
         /* Don't snapshot empty drives */
-        if (virStorageSourceIsEmpty(def->common.dom->disks[i]->src))
+        if (virStorageSourceIsEmpty(def->parent.dom->disks[i]->src))
             disk->snapshot = VIR_DOMAIN_SNAPSHOT_LOCATION_NONE;
         else
-            disk->snapshot = def->common.dom->disks[i]->snapshot;
+            disk->snapshot = def->parent.dom->disks[i]->snapshot;
 
         disk->src->type = VIR_STORAGE_TYPE_FILE;
         if (!disk->snapshot)
@@ -801,26 +801,26 @@ virDomainSnapshotDefFormatInternal(virBufferPtr buf,
     virBufferAddLit(buf, "<domainsnapshot>\n");
     virBufferAdjustIndent(buf, 2);
 
-    virBufferEscapeString(buf, "<name>%s</name>\n", def->common.name);
-    if (def->common.description)
+    virBufferEscapeString(buf, "<name>%s</name>\n", def->parent.name);
+    if (def->parent.description)
         virBufferEscapeString(buf, "<description>%s</description>\n",
-                              def->common.description);
+                              def->parent.description);
     if (def->state)
         virBufferAsprintf(buf, "<state>%s</state>\n",
                           virDomainSnapshotStateTypeToString(def->state));
 
-    if (def->common.parent_name) {
+    if (def->parent.parent_name) {
         virBufferAddLit(buf, "<parent>\n");
         virBufferAdjustIndent(buf, 2);
         virBufferEscapeString(buf, "<name>%s</name>\n",
-                              def->common.parent_name);
+                              def->parent.parent_name);
         virBufferAdjustIndent(buf, -2);
         virBufferAddLit(buf, "</parent>\n");
     }
 
-    if (def->common.creationTime)
+    if (def->parent.creationTime)
         virBufferAsprintf(buf, "<creationTime>%lld</creationTime>\n",
-                          def->common.creationTime);
+                          def->parent.creationTime);
 
     if (def->memory) {
         virBufferAsprintf(buf, "<memory snapshot='%s'",
@@ -840,8 +840,8 @@ virDomainSnapshotDefFormatInternal(virBufferPtr buf,
         virBufferAddLit(buf, "</disks>\n");
     }
 
-    if (def->common.dom) {
-        if (virDomainDefFormatInternal(def->common.dom, caps, domainflags, buf,
+    if (def->parent.dom) {
+        if (virDomainDefFormatInternal(def->parent.dom, caps, domainflags, buf,
                                        xmlopt) < 0)
             goto error;
     } else if (uuidstr) {
@@ -933,31 +933,31 @@ virDomainSnapshotRedefinePrep(virDomainPtr domain,
     bool check_if_stolen;
 
     /* Prevent circular chains */
-    if (def->common.parent_name) {
-        if (STREQ(def->common.name, def->common.parent_name)) {
+    if (def->parent.parent_name) {
+        if (STREQ(def->parent.name, def->parent.parent_name)) {
             virReportError(VIR_ERR_INVALID_ARG,
                            _("cannot set snapshot %s as its own parent"),
-                           def->common.name);
+                           def->parent.name);
             return -1;
         }
         other = virDomainSnapshotFindByName(vm->snapshots,
-                                            def->common.parent_name);
+                                            def->parent.parent_name);
         if (!other) {
             virReportError(VIR_ERR_INVALID_ARG,
                            _("parent %s for snapshot %s not found"),
-                           def->common.parent_name, def->common.name);
+                           def->parent.parent_name, def->parent.name);
             return -1;
         }
         otherdef = virDomainSnapshotObjGetDef(other);
-        while (otherdef->common.parent_name) {
-            if (STREQ(otherdef->common.parent_name, def->common.name)) {
+        while (otherdef->parent.parent_name) {
+            if (STREQ(otherdef->parent.parent_name, def->parent.name)) {
                 virReportError(VIR_ERR_INVALID_ARG,
                                _("parent %s would create cycle to %s"),
-                               otherdef->common.name, def->common.name);
+                               otherdef->parent.name, def->parent.name);
                 return -1;
             }
             other = virDomainSnapshotFindByName(vm->snapshots,
-                                                otherdef->common.parent_name);
+                                                otherdef->parent.parent_name);
             if (!other) {
                 VIR_WARN("snapshots are inconsistent for %s",
                          vm->def->name);
@@ -967,14 +967,14 @@ virDomainSnapshotRedefinePrep(virDomainPtr domain,
         }
     }
 
-    other = virDomainSnapshotFindByName(vm->snapshots, def->common.name);
+    other = virDomainSnapshotFindByName(vm->snapshots, def->parent.name);
     otherdef = other ? virDomainSnapshotObjGetDef(other) : NULL;
-    check_if_stolen = other && otherdef->common.dom;
+    check_if_stolen = other && otherdef->parent.dom;
     if (virDomainSnapshotRedefineValidate(def, domain->uuid, other, xmlopt,
                                           flags) < 0) {
         /* revert any stealing of the snapshot domain definition */
-        if (check_if_stolen && def->common.dom && !otherdef->common.dom)
-            VIR_STEAL_PTR(otherdef->common.dom, def->common.dom);
+        if (check_if_stolen && def->parent.dom && !otherdef->parent.dom)
+            VIR_STEAL_PTR(otherdef->parent.dom, def->parent.dom);
         return -1;
     }
     if (other) {
@@ -987,7 +987,7 @@ virDomainSnapshotRedefinePrep(virDomainPtr domain,
          * child relations by reusing snap. */
         virDomainMomentDropParent(other);
         virDomainSnapshotDefFree(otherdef);
-        other->def = &(*defptr)->common;
+        other->def = &(*defptr)->parent;
         *defptr = NULL;
         *snap = other;
     }
diff --git a/src/conf/snapshot_conf.h b/src/conf/snapshot_conf.h
index 5a762ccd96..f54be11619 100644
--- a/src/conf/snapshot_conf.h
+++ b/src/conf/snapshot_conf.h
@@ -74,7 +74,7 @@ struct _virDomainSnapshotDiskDef {
 
 /* Stores the complete snapshot metadata */
 struct _virDomainSnapshotDef {
-    virDomainMomentDef common;
+    virDomainMomentDef parent;
 
     /* Additional public XML.  */
     int state; /* virDomainSnapshotState */
diff --git a/src/conf/virdomainsnapshotobjlist.c b/src/conf/virdomainsnapshotobjlist.c
index 46b7d8b0e7..9bcc8d1036 100644
--- a/src/conf/virdomainsnapshotobjlist.c
+++ b/src/conf/virdomainsnapshotobjlist.c
@@ -44,7 +44,7 @@ virDomainMomentObjPtr
 virDomainSnapshotAssignDef(virDomainSnapshotObjListPtr snapshots,
                            virDomainSnapshotDefPtr def)
 {
-    return virDomainMomentAssignDef(snapshots->base, &def->common);
+    return virDomainMomentAssignDef(snapshots->base, &def->parent);
 }
 
 
diff --git a/src/esx/esx_driver.c b/src/esx/esx_driver.c
index dff801f946..f45d96a4f5 100644
--- a/src/esx/esx_driver.c
+++ b/src/esx/esx_driver.c
@@ -4118,7 +4118,7 @@ esxDomainSnapshotCreateXML(virDomainPtr domain, const char *xmlDesc,
            priv->parsedUri->autoAnswer) < 0 ||
         esxVI_LookupRootSnapshotTreeList(priv->primary, domain->uuid,
                                          &rootSnapshotList) < 0 ||
-        esxVI_GetSnapshotTreeByName(rootSnapshotList, def->common.name,
+        esxVI_GetSnapshotTreeByName(rootSnapshotList, def->parent.name,
                                     &snapshotTree, NULL,
                                     esxVI_Occurrence_OptionalItem) < 0) {
         goto cleanup;
@@ -4126,12 +4126,12 @@ esxDomainSnapshotCreateXML(virDomainPtr domain, const char *xmlDesc,
 
     if (snapshotTree) {
         virReportError(VIR_ERR_OPERATION_INVALID,
-                       _("Snapshot '%s' already exists"), def->common.name);
+                       _("Snapshot '%s' already exists"), def->parent.name);
         goto cleanup;
     }
 
     if (esxVI_CreateSnapshot_Task(priv->primary, virtualMachine->obj,
-                                  def->common.name, def->common.description,
+                                  def->parent.name, def->parent.description,
                                   diskOnly ? esxVI_Boolean_False : esxVI_Boolean_True,
                                   quiesce ? esxVI_Boolean_True : esxVI_Boolean_False,
                                   &task) < 0 ||
@@ -4148,7 +4148,7 @@ esxDomainSnapshotCreateXML(virDomainPtr domain, const char *xmlDesc,
         goto cleanup;
     }
 
-    snapshot = virGetDomainSnapshot(domain, def->common.name);
+    snapshot = virGetDomainSnapshot(domain, def->parent.name);
 
  cleanup:
     virDomainSnapshotDefFree(def);
@@ -4189,12 +4189,12 @@ esxDomainSnapshotGetXMLDesc(virDomainSnapshotPtr snapshot,
         goto cleanup;
     }
 
-    def.common.name = snapshot->name;
-    def.common.description = snapshotTree->description;
-    def.common.parent_name = snapshotTreeParent ? snapshotTreeParent->name : NULL;
+    def.parent.name = snapshot->name;
+    def.parent.description = snapshotTree->description;
+    def.parent.parent_name = snapshotTreeParent ? snapshotTreeParent->name : NULL;
 
     if (esxVI_DateTime_ConvertToCalendarTime(snapshotTree->createTime,
-                                             &def.common.creationTime) < 0) {
+                                             &def.parent.creationTime) < 0) {
         goto cleanup;
     }
 
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 8a9e43c5d7..2af17816c6 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -8467,7 +8467,7 @@ qemuDomainSnapshotWriteMetadata(virDomainObjPtr vm,
         goto cleanup;
     }
 
-    if (virAsprintf(&snapFile, "%s/%s.xml", snapDir, def->common.name) < 0)
+    if (virAsprintf(&snapFile, "%s/%s.xml", snapDir, def->parent.name) < 0)
         goto cleanup;
 
     ret = virXMLSaveFile(snapFile, NULL, "snapshot-edit", newxml);
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 172d92a656..e12aabb503 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -14446,7 +14446,7 @@ qemuDomainSnapshotCreateInactiveExternal(virQEMUDriverPtr driver,
      * create them correctly.  */
     for (i = 0; i < snapdef->ndisks && !reuse; i++) {
         snapdisk = &(snapdef->disks[i]);
-        defdisk = snapdef->common.dom->disks[snapdisk->idx];
+        defdisk = snapdef->parent.dom->disks[snapdisk->idx];
         if (snapdisk->snapshot != VIR_DOMAIN_SNAPSHOT_LOCATION_EXTERNAL)
             continue;
 
@@ -15621,19 +15621,19 @@ qemuDomainSnapshotCreateXML(virDomainPtr domain,
     /* reject snapshot names containing slashes or starting with dot as
      * snapshot definitions are saved in files named by the snapshot name */
     if (!(flags & VIR_DOMAIN_SNAPSHOT_CREATE_NO_METADATA)) {
-        if (strchr(def->common.name, '/')) {
+        if (strchr(def->parent.name, '/')) {
             virReportError(VIR_ERR_XML_DETAIL,
                            _("invalid snapshot name '%s': "
                              "name can't contain '/'"),
-                           def->common.name);
+                           def->parent.name);
             goto cleanup;
         }
 
-        if (def->common.name[0] == '.') {
+        if (def->parent.name[0] == '.') {
             virReportError(VIR_ERR_XML_DETAIL,
                            _("invalid snapshot name '%s': "
                              "name can't start with '.'"),
-                           def->common.name);
+                           def->parent.name);
             goto cleanup;
         }
     }
@@ -15704,7 +15704,7 @@ qemuDomainSnapshotCreateXML(virDomainPtr domain,
          * conversion in and back out of xml.  */
         if (!(xml = qemuDomainDefFormatLive(driver, vm->def, priv->origCPU,
                                             true, true)) ||
-            !(def->common.dom = virDomainDefParseString(xml, caps, driver->xmlopt, NULL,
+            !(def->parent.dom = virDomainDefParseString(xml, caps, driver->xmlopt, NULL,
                                                         VIR_DOMAIN_DEF_PARSE_INACTIVE |
                                                         VIR_DOMAIN_DEF_PARSE_SKIP_VALIDATE)))
             goto endjob;
diff --git a/src/test/test_driver.c b/src/test/test_driver.c
index 626167f947..aaf67eaac9 100644
--- a/src/test/test_driver.c
+++ b/src/test/test_driver.c
@@ -6403,7 +6403,7 @@ testDomainSnapshotCreateXML(virDomainPtr domain,
                                           &update_current, flags) < 0)
             goto cleanup;
     } else {
-        if (!(def->common.dom = virDomainDefCopy(vm->def,
+        if (!(def->parent.dom = virDomainDefCopy(vm->def,
                                                  privconn->caps,
                                                  privconn->xmlopt,
                                                  NULL,
diff --git a/src/vbox/vbox_common.c b/src/vbox/vbox_common.c
index 94830f5ddb..af557690c4 100644
--- a/src/vbox/vbox_common.c
+++ b/src/vbox/vbox_common.c
@@ -4811,7 +4811,7 @@ vboxSnapshotRedefine(virDomainPtr dom,
      * read-only disks are in the redefined snapshot's media registry (the disks need to
      * be open to query their uuid).
      */
-    for (it = 0; it < def->common.dom->ndisks; it++) {
+    for (it = 0; it < def->parent.dom->ndisks; it++) {
         int diskInMediaRegistry = 0;
         IMedium *readOnlyMedium = NULL;
         PRUnichar *locationUtf = NULL;
@@ -4825,7 +4825,7 @@ vboxSnapshotRedefine(virDomainPtr dom,
         VBOX_IID_INITIALIZE(&iid);
         VBOX_IID_INITIALIZE(&parentiid);
         diskInMediaRegistry = virVBoxSnapshotConfDiskIsInMediaRegistry(snapshotMachineDesc,
-                                                        def->common.dom->disks[it]->src->path);
+                                                        def->parent.dom->disks[it]->src->path);
         if (diskInMediaRegistry == -1) {
             virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                            _("Unable to know if disk is in media registry"));
@@ -4835,7 +4835,7 @@ vboxSnapshotRedefine(virDomainPtr dom,
             continue;
         /*The read only disk is not in the media registry*/
 
-        VBOX_UTF8_TO_UTF16(def->common.dom->disks[it]->src->path, &locationUtf);
+        VBOX_UTF8_TO_UTF16(def->parent.dom->disks[it]->src->path, &locationUtf);
         rc = gVBoxAPI.UIVirtualBox.OpenMedium(data->vboxObj,
                                               locationUtf,
                                               DeviceType_HardDisk,
@@ -4908,7 +4908,7 @@ vboxSnapshotRedefine(virDomainPtr dom,
 
         readOnlyDisk->format = format;
         readOnlyDisk->uuid = uuid;
-        if (VIR_STRDUP(readOnlyDisk->location, def->common.dom->disks[it]->src->path) < 0) {
+        if (VIR_STRDUP(readOnlyDisk->location, def->parent.dom->disks[it]->src->path) < 0) {
             VIR_FREE(readOnlyDisk);
             goto cleanup;
         }
@@ -5013,12 +5013,12 @@ vboxSnapshotRedefine(virDomainPtr dom,
         goto cleanup;
 
     VIR_DEBUG("New snapshot UUID: %s", newSnapshotPtr->uuid);
-    if (VIR_STRDUP(newSnapshotPtr->name, def->common.name) < 0)
+    if (VIR_STRDUP(newSnapshotPtr->name, def->parent.name) < 0)
         goto cleanup;
 
-    newSnapshotPtr->timeStamp = virTimeStringThen(def->common.creationTime * 1000);
+    newSnapshotPtr->timeStamp = virTimeStringThen(def->parent.creationTime * 1000);
 
-    if (VIR_STRDUP(newSnapshotPtr->description, def->common.description) < 0)
+    if (VIR_STRDUP(newSnapshotPtr->description, def->parent.description) < 0)
         goto cleanup;
 
     if (VIR_STRDUP(newSnapshotPtr->hardware, snapshotMachineDesc->hardware) < 0)
@@ -5028,12 +5028,12 @@ vboxSnapshotRedefine(virDomainPtr dom,
         goto cleanup;
 
     /*We get the parent disk uuid from the parent disk location to correctly fill the storage controller.*/
-    for (it = 0; it < def->common.dom->ndisks; it++) {
+    for (it = 0; it < def->parent.dom->ndisks; it++) {
         char *location = NULL;
         const char *uuidReplacing = NULL;
         char *tmp = NULL;
 
-        location = def->common.dom->disks[it]->src->path;
+        location = def->parent.dom->disks[it]->src->path;
         if (!location)
             goto cleanup;
         /*Replacing the uuid*/
@@ -5061,7 +5061,7 @@ vboxSnapshotRedefine(virDomainPtr dom,
 
         VIR_FREE(tmp);
     }
-    if (virVBoxSnapshotConfAddSnapshotToXmlMachine(newSnapshotPtr, snapshotMachineDesc, def->common.parent_name) < 0) {
+    if (virVBoxSnapshotConfAddSnapshotToXmlMachine(newSnapshotPtr, snapshotMachineDesc, def->parent.parent_name) < 0) {
         virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                        _("Unable to add the snapshot to the machine description"));
         goto cleanup;
@@ -5081,10 +5081,10 @@ vboxSnapshotRedefine(virDomainPtr dom,
      * Open the snapshot's read-write disk's full ancestry to allow opening the
      * read-write disk itself.
      */
-    for (it = 0; it < def->common.dom->ndisks; it++) {
+    for (it = 0; it < def->parent.dom->ndisks; it++) {
         char *location = NULL;
 
-        location = def->common.dom->disks[it]->src->path;
+        location = def->parent.dom->disks[it]->src->path;
         if (!location)
             goto cleanup;
 
@@ -5228,7 +5228,7 @@ vboxSnapshotRedefine(virDomainPtr dom,
         }
     } else {
         /*Create a "fake" disk to avoid corrupting children snapshot disks.*/
-        for (it = 0; it < def->common.dom->ndisks; it++) {
+        for (it = 0; it < def->parent.dom->ndisks; it++) {
             IMedium *medium = NULL;
             PRUnichar *locationUtf16 = NULL;
             char *parentUuid = NULL;
@@ -5244,7 +5244,7 @@ vboxSnapshotRedefine(virDomainPtr dom,
 
             VBOX_IID_INITIALIZE(&iid);
             VBOX_IID_INITIALIZE(&parentiid);
-            VBOX_UTF8_TO_UTF16(def->common.dom->disks[it]->src->path, &locationUtf16);
+            VBOX_UTF8_TO_UTF16(def->parent.dom->disks[it]->src->path, &locationUtf16);
             rc = gVBoxAPI.UIVirtualBox.OpenMedium(data->vboxObj,
                                                   locationUtf16,
                                                   DeviceType_HardDisk,
@@ -5393,8 +5393,8 @@ vboxSnapshotRedefine(virDomainPtr dom,
      * All the snapshot structure manipulation is done, we close the disks we have
      * previously opened.
      */
-    for (it = 0; it < def->common.dom->ndisks; it++) {
-        char *location = def->common.dom->disks[it]->src->path;
+    for (it = 0; it < def->parent.dom->ndisks; it++) {
+        char *location = def->parent.dom->disks[it]->src->path;
         if (!location)
             goto cleanup;
 
@@ -5513,7 +5513,7 @@ vboxDomainSnapshotCreateXML(virDomainPtr dom,
         if (flags & VIR_DOMAIN_SNAPSHOT_CREATE_REDEFINE) {
             if (vboxSnapshotRedefine(dom, def, isCurrent) < 0)
                 goto cleanup;
-            ret = virGetDomainSnapshot(dom, def->common.name);
+            ret = virGetDomainSnapshot(dom, def->parent.name);
             goto cleanup;
         }
     }
@@ -5540,14 +5540,14 @@ vboxDomainSnapshotCreateXML(virDomainPtr dom,
         goto cleanup;
     }
 
-    VBOX_UTF8_TO_UTF16(def->common.name, &name);
+    VBOX_UTF8_TO_UTF16(def->parent.name, &name);
     if (!name) {
         virReportOOMError();
         goto cleanup;
     }
 
-    if (def->common.description) {
-        VBOX_UTF8_TO_UTF16(def->common.description, &description);
+    if (def->parent.description) {
+        VBOX_UTF8_TO_UTF16(def->parent.description, &description);
         if (!description) {
             virReportOOMError();
             goto cleanup;
@@ -5577,7 +5577,7 @@ vboxDomainSnapshotCreateXML(virDomainPtr dom,
         goto cleanup;
     }
 
-    ret = virGetDomainSnapshot(dom, def->common.name);
+    ret = virGetDomainSnapshot(dom, def->parent.name);
 
  cleanup:
     VBOX_RELEASE(progress);
@@ -5981,7 +5981,7 @@ vboxSnapshotGetReadOnlyDisks(virDomainSnapshotDefPtr def,
     vboxArray mediumAttachments = VBOX_ARRAY_INITIALIZER;
     size_t i = 0, diskCount = 0, sdCount = 0;
     int ret = -1;
-    virDomainDefPtr defdom = def->common.dom;
+    virDomainDefPtr defdom = def->parent.dom;
 
     if (!data->vboxObj)
         return ret;
@@ -6220,10 +6220,10 @@ static char *vboxDomainSnapshotGetXMLDesc(virDomainSnapshotPtr snapshot,
     if (!(snap = vboxDomainSnapshotGet(data, dom, machine, snapshot->name)))
         goto cleanup;
 
-    if (VIR_ALLOC(def) < 0 || !(def->common.dom = virDomainDefNew()))
+    if (VIR_ALLOC(def) < 0 || !(def->parent.dom = virDomainDefNew()))
         goto cleanup;
-    defdom = def->common.dom;
-    if (VIR_STRDUP(def->common.name, snapshot->name) < 0)
+    defdom = def->parent.dom;
+    if (VIR_STRDUP(def->parent.name, snapshot->name) < 0)
         goto cleanup;
 
     if (gVBoxAPI.vboxSnapshotRedefine) {
@@ -6271,7 +6271,7 @@ static char *vboxDomainSnapshotGetXMLDesc(virDomainSnapshotPtr snapshot,
     if (str16) {
         VBOX_UTF16_TO_UTF8(str16, &str8);
         VBOX_UTF16_FREE(str16);
-        if (VIR_STRDUP(def->common.description, str8) < 0) {
+        if (VIR_STRDUP(def->parent.description, str8) < 0) {
             VBOX_UTF8_FREE(str8);
             goto cleanup;
         }
@@ -6286,7 +6286,7 @@ static char *vboxDomainSnapshotGetXMLDesc(virDomainSnapshotPtr snapshot,
         goto cleanup;
     }
     /* timestamp is in milliseconds while creationTime in seconds */
-    def->common.creationTime = timestamp / 1000;
+    def->parent.creationTime = timestamp / 1000;
 
     rc = gVBoxAPI.UISnapshot.GetParent(snap, &parent);
     if (NS_FAILED(rc)) {
@@ -6305,7 +6305,7 @@ static char *vboxDomainSnapshotGetXMLDesc(virDomainSnapshotPtr snapshot,
         }
         VBOX_UTF16_TO_UTF8(str16, &str8);
         VBOX_UTF16_FREE(str16);
-        if (VIR_STRDUP(def->common.parent_name, str8) < 0) {
+        if (VIR_STRDUP(def->parent.parent_name, str8) < 0) {
             VBOX_UTF8_FREE(str8);
             goto cleanup;
         }
@@ -6987,7 +6987,7 @@ vboxDomainSnapshotDeleteMetadataOnly(virDomainSnapshotPtr snapshot)
         goto cleanup;
     }
 
-    isCurrent = virVBoxSnapshotConfIsCurrentSnapshot(snapshotMachineDesc, def->common.name);
+    isCurrent = virVBoxSnapshotConfIsCurrentSnapshot(snapshotMachineDesc, def->parent.name);
     if (isCurrent < 0) {
         virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                        _("Unable to know if the snapshot is the current snapshot"));
@@ -6999,8 +6999,8 @@ vboxDomainSnapshotDeleteMetadataOnly(virDomainSnapshotPtr snapshot)
          * disks. The first thing to do is to manipulate VirtualBox API to create
          * differential read-write disks if the parent snapshot is not null.
          */
-        if (def->common.parent_name != NULL) {
-            for (it = 0; it < def->common.dom->ndisks; it++) {
+        if (def->parent.parent_name != NULL) {
+            for (it = 0; it < def->parent.dom->ndisks; it++) {
                 virVBoxSnapshotConfHardDiskPtr readOnly = NULL;
                 IMedium *medium = NULL;
                 PRUnichar *locationUtf16 = NULL;
@@ -7020,7 +7020,7 @@ vboxDomainSnapshotDeleteMetadataOnly(virDomainSnapshotPtr snapshot)
                 VBOX_IID_INITIALIZE(&iid);
                 VBOX_IID_INITIALIZE(&parentiid);
                 readOnly = virVBoxSnapshotConfHardDiskPtrByLocation(snapshotMachineDesc,
-                                                 def->common.dom->disks[it]->src->path);
+                                                 def->parent.dom->disks[it]->src->path);
                 if (!readOnly) {
                     virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                                    _("Cannot get hard disk by location"));
@@ -7058,7 +7058,7 @@ vboxDomainSnapshotDeleteMetadataOnly(virDomainSnapshotPtr snapshot)
                 VBOX_UTF8_TO_UTF16("VDI", &formatUtf16);
 
                 if (virAsprintf(&newLocationUtf8, "%sfakedisk-%s-%d.vdi",
-                                machineLocationPath, def->common.parent_name, it) < 0)
+                                machineLocationPath, def->parent.parent_name, it) < 0)
                     goto cleanup;
                 VBOX_UTF8_TO_UTF16(newLocationUtf8, &newLocation);
                 rc = gVBoxAPI.UIVirtualBox.CreateHardDisk(data->vboxObj,
@@ -7156,15 +7156,15 @@ vboxDomainSnapshotDeleteMetadataOnly(virDomainSnapshotPtr snapshot)
                 }
             }
         } else {
-            for (it = 0; it < def->common.dom->ndisks; it++) {
+            for (it = 0; it < def->parent.dom->ndisks; it++) {
                 const char *uuidRO = NULL;
                 char *tmp = NULL;
                 uuidRO = virVBoxSnapshotConfHardDiskUuidByLocation(snapshotMachineDesc,
-                                                      def->common.dom->disks[it]->src->path);
+                                                      def->parent.dom->disks[it]->src->path);
                 if (!uuidRO) {
                     virReportError(VIR_ERR_INTERNAL_ERROR,
                                    _("No such disk in media registry %s"),
-                                   def->common.dom->disks[it]->src->path);
+                                   def->parent.dom->disks[it]->src->path);
                     goto cleanup;
                 }
 
@@ -7209,14 +7209,14 @@ vboxDomainSnapshotDeleteMetadataOnly(virDomainSnapshotPtr snapshot)
         }
     }
     /*If the parent snapshot is not NULL, we remove the-read only disks from the media registry*/
-    if (def->common.parent_name != NULL) {
-        for (it = 0; it < def->common.dom->ndisks; it++) {
+    if (def->parent.parent_name != NULL) {
+        for (it = 0; it < def->parent.dom->ndisks; it++) {
             const char *uuidRO =
                 virVBoxSnapshotConfHardDiskUuidByLocation(snapshotMachineDesc,
-                                                          def->common.dom->disks[it]->src->path);
+                                                          def->parent.dom->disks[it]->src->path);
             if (!uuidRO) {
                 virReportError(VIR_ERR_INTERNAL_ERROR,
-                               _("Unable to find UUID for location %s"), def->common.dom->disks[it]->src->path);
+                               _("Unable to find UUID for location %s"), def->parent.dom->disks[it]->src->path);
                 goto cleanup;
             }
             if (virVBoxSnapshotConfRemoveHardDisk(snapshotMachineDesc->mediaRegistry, uuidRO) < 0) {
@@ -7281,16 +7281,16 @@ vboxDomainSnapshotDeleteMetadataOnly(virDomainSnapshotPtr snapshot)
     }
 
     /*removing the snapshot*/
-    if (virVBoxSnapshotConfRemoveSnapshot(snapshotMachineDesc, def->common.name) < 0) {
+    if (virVBoxSnapshotConfRemoveSnapshot(snapshotMachineDesc, def->parent.name) < 0) {
         virReportError(VIR_ERR_INTERNAL_ERROR,
-                       _("Unable to remove snapshot %s"), def->common.name);
+                       _("Unable to remove snapshot %s"), def->parent.name);
         goto cleanup;
     }
 
     if (isCurrent) {
         VIR_FREE(snapshotMachineDesc->currentSnapshot);
-        if (def->common.parent_name != NULL) {
-            virVBoxSnapshotConfSnapshotPtr snap = virVBoxSnapshotConfSnapshotByName(snapshotMachineDesc->snapshot, def->common.parent_name);
+        if (def->parent.parent_name != NULL) {
+            virVBoxSnapshotConfSnapshotPtr snap = virVBoxSnapshotConfSnapshotByName(snapshotMachineDesc->snapshot, def->parent.parent_name);
             if (!snap) {
                 virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                                _("Unable to get the snapshot to remove"));
diff --git a/src/vz/vz_driver.c b/src/vz/vz_driver.c
index 83bffd95b2..419e9d215f 100644
--- a/src/vz/vz_driver.c
+++ b/src/vz/vz_driver.c
@@ -2619,7 +2619,7 @@ vzDomainSnapshotCreateXML(virDomainPtr domain,
         goto cleanup;
 
     /* snaphot name is ignored, it will be set to auto generated by sdk uuid */
-    if (prlsdkCreateSnapshot(dom, def->common.description) < 0)
+    if (prlsdkCreateSnapshot(dom, def->parent.description) < 0)
         goto cleanup;
 
     if (!(snapshots = prlsdkLoadSnapshots(dom)))
diff --git a/src/vz/vz_sdk.c b/src/vz/vz_sdk.c
index 500de5f8ba..478443298f 100644
--- a/src/vz/vz_sdk.c
+++ b/src/vz/vz_sdk.c
@@ -4696,14 +4696,14 @@ prlsdkParseSnapshotTree(const char *treexml)
 
         ctxt->node = nodes[i];
 
-        def->common.name = virXPathString("string(./@guid)", ctxt);
-        if (!def->common.name) {
+        def->parent.name = virXPathString("string(./@guid)", ctxt);
+        if (!def->parent.name) {
             virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
                            _("missing 'guid' attribute"));
             goto cleanup;
         }
 
-        def->common.parent_name = virXPathString("string(../@guid)", ctxt);
+        def->parent.parent_name = virXPathString("string(../@guid)", ctxt);
 
         xmlstr = virXPathString("string(./DateTime)", ctxt);
         if (!xmlstr) {
@@ -4711,11 +4711,11 @@ prlsdkParseSnapshotTree(const char *treexml)
                            _("missing 'DateTime' element"));
             goto cleanup;
         }
-        if ((def->common.creationTime = prlsdkParseDateTime(xmlstr)) < 0)
+        if ((def->parent.creationTime = prlsdkParseDateTime(xmlstr)) < 0)
             goto cleanup;
         VIR_FREE(xmlstr);
 
-        def->common.description = virXPathString("string(./Description)", ctxt);
+        def->parent.description = virXPathString("string(./Description)", ctxt);
 
         def->memory = VIR_DOMAIN_SNAPSHOT_LOCATION_NONE;
         xmlstr = virXPathString("string(./@state)", ctxt);