diff --git a/ChangeLog b/ChangeLog
index 5da317c60c..ab6314ba3b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Tue Aug 21 09:45:00 BST 2007 Richard W.M. Jones <rjones@redhat.com>
+
+	* src/xend_internal.c: Return the interface device name as
+	  <target dev='vifX.Y'/> in domain XML.
+	* tests/*: Update XML in regression tests.
+
 Tue Aug 21 09:07:00 BST 2007 Richard W.M. Jones <rjones@redhat.com>
 
 	* docs/libvir.html: Updated the hvsupport page to show that
diff --git a/src/xend_internal.c b/src/xend_internal.c
index b77afa8d1a..dfeab67c09 100644
--- a/src/xend_internal.c
+++ b/src/xend_internal.c
@@ -1354,6 +1354,7 @@ xend_parse_sexp_desc(virConnectPtr conn, struct sexpr *root, int xendConfigVersi
     int max_mem, cur_mem;
     unsigned char uuid[VIR_UUID_BUFLEN];
     char uuidstr[VIR_UUID_STRING_BUFLEN];
+    int vif_index = 0;
 
     if (root == NULL) {
         /* ERROR */
@@ -1626,6 +1627,9 @@ xend_parse_sexp_desc(virConnectPtr conn, struct sexpr *root, int xendConfigVersi
             if (tmp)
                 virBufferVSprintf(&buf, "      <target dev='%s'/>\n",
                                   tmp);
+            else
+                virBufferVSprintf(&buf, "      <target dev='vif%d.%d'/>\n",
+                                  domid, vif_index);
             tmp = sexpr_node(node, "device/vif/mac");
             if (tmp)
                 virBufferVSprintf(&buf, "      <mac address='%s'/>\n",
@@ -1639,6 +1643,7 @@ xend_parse_sexp_desc(virConnectPtr conn, struct sexpr *root, int xendConfigVersi
                                   tmp2);
 
             virBufferAdd(&buf, "    </interface>\n", 17);
+            vif_index++;
         } else if (sexpr_lookup(node, "device/vfb")) {
             /* New style graphics config for PV guests in >= 3.0.4,
              * or for HVM guests in >= 3.0.5 */
diff --git a/tests/sexpr2xmldata/sexpr2xml-curmem.xml b/tests/sexpr2xmldata/sexpr2xml-curmem.xml
index 8c46e18a84..15853cd827 100644
--- a/tests/sexpr2xmldata/sexpr2xml-curmem.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-curmem.xml
@@ -17,6 +17,7 @@
   <devices>
     <interface type='bridge'>
       <source bridge='xenbr0'/>
+      <target dev='vif5.0'/>
       <mac address='00:16:3e:1d:06:15'/>
       <script path='vif-bridge'/>
     </interface>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-localtime.xml b/tests/sexpr2xmldata/sexpr2xml-fv-localtime.xml
index a6ebc1a468..051097f781 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-localtime.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-localtime.xml
@@ -24,6 +24,7 @@
     </disk>
     <interface type='bridge'>
       <source bridge='xenbr0'/>
+      <target dev='vif3.0'/>
       <mac address='00:16:3e:1b:b1:47'/>
       <script path='vif-bridge'/>
     </interface>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-usbmouse.xml b/tests/sexpr2xmldata/sexpr2xml-fv-usbmouse.xml
index 4b9e1e4dfc..a2eb84b674 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-usbmouse.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-usbmouse.xml
@@ -24,6 +24,7 @@
     </disk>
     <interface type='bridge'>
       <source bridge='xenbr0'/>
+      <target dev='vif3.0'/>
       <mac address='00:16:3e:1b:b1:47'/>
       <script path='vif-bridge'/>
     </interface>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-usbtablet.xml b/tests/sexpr2xmldata/sexpr2xml-fv-usbtablet.xml
index 5567e19196..714e890f20 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-usbtablet.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-usbtablet.xml
@@ -24,6 +24,7 @@
     </disk>
     <interface type='bridge'>
       <source bridge='xenbr0'/>
+      <target dev='vif3.0'/>
       <mac address='00:16:3e:1b:b1:47'/>
       <script path='vif-bridge'/>
     </interface>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-utc.xml b/tests/sexpr2xmldata/sexpr2xml-fv-utc.xml
index 0382a69f5b..f11571d7ab 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-utc.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-utc.xml
@@ -24,6 +24,7 @@
     </disk>
     <interface type='bridge'>
       <source bridge='xenbr0'/>
+      <target dev='vif3.0'/>
       <mac address='00:16:3e:1b:b1:47'/>
       <script path='vif-bridge'/>
     </interface>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv-v2.xml b/tests/sexpr2xmldata/sexpr2xml-fv-v2.xml
index 8a89770b2c..c4c4a36083 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv-v2.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv-v2.xml
@@ -30,6 +30,7 @@
     </disk>
     <interface type='bridge'>
       <source bridge='xenbr0'/>
+      <target dev='vif3.0'/>
       <mac address='00:16:3e:1b:b1:47'/>
       <script path='vif-bridge'/>
     </interface>
diff --git a/tests/sexpr2xmldata/sexpr2xml-fv.xml b/tests/sexpr2xmldata/sexpr2xml-fv.xml
index 0382a69f5b..f11571d7ab 100644
--- a/tests/sexpr2xmldata/sexpr2xml-fv.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-fv.xml
@@ -24,6 +24,7 @@
     </disk>
     <interface type='bridge'>
       <source bridge='xenbr0'/>
+      <target dev='vif3.0'/>
       <mac address='00:16:3e:1b:b1:47'/>
       <script path='vif-bridge'/>
     </interface>
diff --git a/tests/sexpr2xmldata/sexpr2xml-net-bridged.xml b/tests/sexpr2xmldata/sexpr2xml-net-bridged.xml
index 4eb2d186f4..26d7badb01 100644
--- a/tests/sexpr2xmldata/sexpr2xml-net-bridged.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-net-bridged.xml
@@ -20,6 +20,7 @@
     </disk>
     <interface type='bridge'>
       <source bridge='xenbr2'/>
+      <target dev='vif6.0'/>
       <mac address='00:11:22:33:44:55'/>
       <script path='vif-bridge'/>
     </interface>
diff --git a/tests/sexpr2xmldata/sexpr2xml-net-routed.xml b/tests/sexpr2xmldata/sexpr2xml-net-routed.xml
index f1a12f63d2..74dad9f535 100644
--- a/tests/sexpr2xmldata/sexpr2xml-net-routed.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-net-routed.xml
@@ -19,6 +19,7 @@
       <target dev='xvda'/>
     </disk>
     <interface type='ethernet'>
+      <target dev='vif6.0'/>
       <mac address='00:11:22:33:44:55'/>
       <ip address='172.14.5.6'/>
       <script path='vif-routed'/>
diff --git a/tests/sexpr2xmldata/sexpr2xml-no-source-cdrom.xml b/tests/sexpr2xmldata/sexpr2xml-no-source-cdrom.xml
index ea77f57cfd..429474aff2 100644
--- a/tests/sexpr2xmldata/sexpr2xml-no-source-cdrom.xml
+++ b/tests/sexpr2xmldata/sexpr2xml-no-source-cdrom.xml
@@ -22,6 +22,7 @@
     <emulator>/usr/lib/xen/bin/qemu-dm</emulator>
     <interface type='bridge'>
       <source bridge='xenbr0'/>
+      <target dev='vif6.0'/>
       <mac address='00:16:3e:0a:7b:39'/>
     </interface>
     <disk type='block' device='disk'>
diff --git a/tests/sexpr2xmltest.c b/tests/sexpr2xmltest.c
index 26f4f0bb11..93d1cd2725 100644
--- a/tests/sexpr2xmltest.c
+++ b/tests/sexpr2xmltest.c
@@ -30,6 +30,7 @@ static int testCompareFiles(const char *xml, const char *sexpr, int xendConfigVe
 
   if (strcmp(xmlData, gotxml)) {
     if (getenv("DEBUG_TESTS")) {
+	printf("In test file %s -> %s:\n", sexpr, xml);
         printf("Expect %d '%s'\n", (int)strlen(xmlData), xmlData);
         printf("Actual %d '%s'\n", (int)strlen(gotxml), gotxml);
     }