diff --git a/[refs] b/[refs]
index b1d8c0158f31..44e6af7fc738 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d68d82afd4c88e25763b23cd9cd4974573a3706f
+refs/heads/master: 5c51c637e489f3f4d58d51365b0c558549918858
diff --git a/trunk/drivers/xen/cpu_hotplug.c b/trunk/drivers/xen/cpu_hotplug.c
index 1bc003536cdb..565280ec1c6a 100644
--- a/trunk/drivers/xen/cpu_hotplug.c
+++ b/trunk/drivers/xen/cpu_hotplug.c
@@ -78,7 +78,7 @@ static int __init setup_vcpu_hotplug_event(void)
 	static struct notifier_block xsn_cpu = {
 		.notifier_call = setup_cpu_watcher };
 
-	if (!is_running_on_xen())
+	if (!xen_pv_domain())
 		return -ENODEV;
 
 	register_xenstore_notifier(&xsn_cpu);