--- xend_internal.c.back	2008-12-04 15:31:38.000000000 +0000
+++ xend_internal.c	2008-12-04 21:05:49.000000000 +0000
@@ -1773,10 +1773,9 @@
             if (VIR_ALLOC(net) < 0)
                 goto no_memory;
 
-            if ((tmp2 && strstr(tmp2, "bridge")) || tmp) {
-                net->type = VIR_DOMAIN_NET_TYPE_BRIDGE;
-                /* XXX virtual network reverse resolve */
-
+            if ((tmp2 && (strstr(tmp2, "bridge") )) || tmp) {
+	                net->type = VIR_DOMAIN_NET_TYPE_BRIDGE;
+	        /* XXX virtual network reverse resolve */
                 if (tmp &&
                     !(net->data.bridge.brname = strdup(tmp)))
                     goto no_memory;
@@ -5153,10 +5152,15 @@
 
     /*
      * apparently (type ioemu) breaks paravirt drivers on HVM so skip this
-     * from Xen 3.1.0
+     * from Xen 3.1.0 This happence as XEN try to allocate a network card via qemu 
      */
-    if ((hvm) && (xendConfigVersion < 4))
-        virBufferAddLit(buf, "(type ioemu)");
+//    if ((hvm) && (xendConfigVersion < 4) )
+    if ((hvm) && (def->qemu_allocate==VIR_DOMAIN_NET_QEMU_ALLOC_FALSE)){ /* If we have asked the qemu not to allocte a net work for hvm guest.
+	 This way you would not have a problem with PV drivers on HVM guests*/
+	    virBufferAddLit(buf, "(type none)");
+    }else {
+		virBufferAddLit(buf, "(type ioemu)");
+	}
 
     if (!isAttach)
         virBufferAddLit(buf, ")");