Index: xen_unified.c
===================================================================
RCS file: /data/cvs/libvirt/src/xen_unified.c,v
retrieving revision 1.6
diff -u -p -r1.6 xen_unified.c
--- xen_unified.c	30 Apr 2007 16:57:15 -0000	1.6
+++ xen_unified.c	1 May 2007 12:29:22 -0000
@@ -111,6 +111,11 @@ xenUnifiedOpen (virConnectPtr conn, cons
     for (i = 0; i < XEN_UNIFIED_NR_DRIVERS; ++i) {
         priv->opened[i] = 0;
 
+        /* Only use XM driver for Xen <= 3.0.3 (ie xendConfigVersion <= 2) */
+        if (drivers[i] == &xenXMDriver &&
+            priv->xendConfigVersion > 2)
+            continue;
+
         /* Ignore proxy for root */
         if (i == proxy_offset && getuid() == 0)
             continue;