diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index 8222b54683fe8be1325f0a923cd7a1f9eb005a93..0cec340d0886bc90308e1696675dd88123f6a5cf 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -2301,9 +2301,34 @@ qemuDomainDeviceDefPostParse(virDomainDeviceDefPtr dev,
 }
 
 
+static int
+qemuDomainDefAssignAddresses(virDomainDef *def,
+                             virCapsPtr caps ATTRIBUTE_UNUSED,
+                             unsigned int parseFlags ATTRIBUTE_UNUSED,
+                             void *opaque)
+{
+    virQEMUDriverPtr driver = opaque;
+    virQEMUCapsPtr qemuCaps = NULL;
+    int ret = -1;
+
+    if (!(qemuCaps = virQEMUCapsCacheLookup(driver->qemuCapsCache,
+                                            def->emulator)))
+        goto cleanup;
+
+    if (qemuDomainAssignAddresses(def, qemuCaps, NULL) < 0)
+        goto cleanup;
+
+    ret = 0;
+ cleanup:
+    virObjectUnref(qemuCaps);
+    return ret;
+}
+
+
 virDomainDefParserConfig virQEMUDriverDomainDefParserConfig = {
     .devicesPostParseCallback = qemuDomainDeviceDefPostParse,
     .domainPostParseCallback = qemuDomainDefPostParse,
+    .assignAddressesCallback = qemuDomainDefAssignAddresses,
     .features = VIR_DOMAIN_DEF_FEATURE_MEMORY_HOTPLUG |
                 VIR_DOMAIN_DEF_FEATURE_OFFLINE_VCPUPIN
 };
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 00daf72a9a8265c34d44cf044744a2d41ffc3c15..156469511e42044f9ef1f63987e54affb4a14c6d 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -1771,7 +1771,6 @@ static virDomainPtr qemuDomainCreateXML(virConnectPtr conn,
     virObjectEventPtr event = NULL;
     virObjectEventPtr event2 = NULL;
     unsigned int start_flags = VIR_QEMU_PROCESS_START_COLD;
-    virQEMUCapsPtr qemuCaps = NULL;
     virCapsPtr caps = NULL;
     unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_INACTIVE |
                                VIR_DOMAIN_DEF_PARSE_ABI_UPDATE;
@@ -1799,12 +1798,6 @@ static virDomainPtr qemuDomainCreateXML(virConnectPtr conn,
     if (virDomainCreateXMLEnsureACL(conn, def) < 0)
         goto cleanup;
 
-    if (!(qemuCaps = virQEMUCapsCacheLookup(driver->qemuCapsCache, def->emulator)))
-        goto cleanup;
-
-    if (qemuDomainAssignAddresses(def, qemuCaps, NULL) < 0)
-        goto cleanup;
-
     if (!(vm = virDomainObjListAdd(driver->domains, def,
                                    driver->xmlopt,
                                    VIR_DOMAIN_OBJ_LIST_ADD_LIVE |
@@ -1858,7 +1851,6 @@ static virDomainPtr qemuDomainCreateXML(virConnectPtr conn,
         qemuDomainEventQueue(driver, event2);
     }
     virObjectUnref(caps);
-    virObjectUnref(qemuCaps);
     virNWFilterUnlockFilterUpdates();
     return dom;
 }
@@ -7249,7 +7241,6 @@ static virDomainPtr qemuDomainDefineXMLFlags(virConnectPtr conn, const char *xml
     virDomainObjPtr vm = NULL;
     virDomainPtr dom = NULL;
     virObjectEventPtr event = NULL;
-    virQEMUCapsPtr qemuCaps = NULL;
     virQEMUDriverConfigPtr cfg;
     virCapsPtr caps = NULL;
     unsigned int parse_flags = VIR_DOMAIN_DEF_PARSE_INACTIVE |
@@ -7272,12 +7263,6 @@ static virDomainPtr qemuDomainDefineXMLFlags(virConnectPtr conn, const char *xml
     if (virDomainDefineXMLFlagsEnsureACL(conn, def) < 0)
         goto cleanup;
 
-    if (!(qemuCaps = virQEMUCapsCacheLookup(driver->qemuCapsCache, def->emulator)))
-        goto cleanup;
-
-    if (qemuDomainAssignAddresses(def, qemuCaps, NULL) < 0)
-        goto cleanup;
-
     if (!(vm = virDomainObjListAdd(driver->domains, def,
                                    driver->xmlopt,
                                    0, &oldDef)))
@@ -7328,7 +7313,6 @@ static virDomainPtr qemuDomainDefineXMLFlags(virConnectPtr conn, const char *xml
     virDomainDefFree(def);
     virDomainObjEndAPI(&vm);
     qemuDomainEventQueue(driver, event);
-    virObjectUnref(qemuCaps);
     virObjectUnref(caps);
     virObjectUnref(cfg);
     return dom;
@@ -15975,9 +15959,6 @@ static virDomainPtr qemuDomainQemuAttach(virConnectPtr conn,
     if (qemuAssignDeviceAliases(def, qemuCaps) < 0)
         goto cleanup;
 
-    if (qemuDomainAssignAddresses(def, qemuCaps, NULL) < 0)
-        goto cleanup;
-
     if (!(vm = virDomainObjListAdd(driver->domains, def,
                                    driver->xmlopt,
                                    VIR_DOMAIN_OBJ_LIST_ADD_LIVE |
diff --git a/tests/qemuargv2xmldata/qemuargv2xml-pseries-disk.xml b/tests/qemuargv2xmldata/qemuargv2xml-pseries-disk.xml
index 8cec27c3dc43bd943c15ddefbdddf60325360570..ab9195a9161c24176ceee6134d04a3b3b970fa71 100644
--- a/tests/qemuargv2xmldata/qemuargv2xml-pseries-disk.xml
+++ b/tests/qemuargv2xmldata/qemuargv2xml-pseries-disk.xml
@@ -29,7 +29,9 @@
     </disk>
     <controller type='usb' index='0'/>
     <controller type='pci' index='0' model='pci-root'/>
-    <controller type='scsi' index='0'/>
+    <controller type='scsi' index='0'>
+      <address type='spapr-vio' reg='0x2000'/>
+    </controller>
     <input type='keyboard' bus='usb'/>
     <input type='mouse' bus='usb'/>
     <graphics type='sdl'/>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index f41316102d2ab7f4ebe80ead20c5fca20c978bf6..64a53ee5d7703925ce35dda44d58c2240054328f 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1403,7 +1403,7 @@ mymain(void)
             QEMU_CAPS_PCI_OHCI, QEMU_CAPS_PCI_MULTIFUNCTION);
     DO_TEST("pseries-vio-user-assigned",
             QEMU_CAPS_CHARDEV, QEMU_CAPS_NODEFCONFIG);
-    DO_TEST_FAILURE("pseries-vio-address-clash",
+    DO_TEST_PARSE_ERROR("pseries-vio-address-clash",
             QEMU_CAPS_CHARDEV, QEMU_CAPS_NODEFCONFIG);
     DO_TEST("pseries-nvram", QEMU_CAPS_DEVICE_NVRAM);
     DO_TEST("pseries-usb-kbd", QEMU_CAPS_PCI_OHCI,
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index 404cd10b0817917201d81ba3a3da1f5aaea30b25..30cf3e8dbb2d6f8889bfed75b2ba538dc30ca4eb 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -37,13 +37,9 @@ struct testInfo {
 };
 
 static int
-qemuXML2XMLPreFormatCallback(virDomainDefPtr def, const void *opaque)
+qemuXML2XMLPreFormatCallback(virDomainDefPtr def ATTRIBUTE_UNUSED,
+                             const void *opaque ATTRIBUTE_UNUSED)
 {
-    const struct testInfo *info = opaque;
-
-    if (qemuDomainAssignAddresses(def, info->qemuCaps, NULL))
-        return -1;
-
     return 0;
 }
 
@@ -153,9 +149,6 @@ testCompareStatusXMLToXMLFiles(const void *opaque)
         goto cleanup;
     }
 
-    if (qemuDomainAssignAddresses(obj->def, data->qemuCaps, NULL))
-        goto cleanup;
-
     /* format it back */
     if (!(actual = virDomainObjFormat(driver.xmlopt, obj, NULL,
                                       VIR_DOMAIN_DEF_FORMAT_SECURE))) {