diff --git a/[refs] b/[refs]
index 0dcd97a3776b..d5a7fbfa815a 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: eff8d6447d5fac2995ffa5c1f0ea2da5bd7074c9
+refs/heads/master: ef61ee0dc7ba0409dc0e8122de90d4e48d4c8669
diff --git a/trunk/arch/arm/xen/enlighten.c b/trunk/arch/arm/xen/enlighten.c
index 6a0217d4e662..c2a47a724870 100644
--- a/trunk/arch/arm/xen/enlighten.c
+++ b/trunk/arch/arm/xen/enlighten.c
@@ -1,6 +1,7 @@
 #include <xen/xen.h>
 #include <xen/interface/xen.h>
 #include <xen/interface/memory.h>
+#include <xen/features.h>
 #include <xen/platform_pci.h>
 #include <asm/xen/hypervisor.h>
 #include <asm/xen/hypercall.h>
@@ -66,6 +67,12 @@ static int __init xen_guest_init(void)
 	}
 	xen_domain_type = XEN_HVM_DOMAIN;
 
+	xen_setup_features();
+	if (xen_feature(XENFEAT_dom0))
+		xen_start_info->flags |= SIF_INITDOMAIN|SIF_PRIVILEGED;
+	else
+		xen_start_info->flags &= ~(SIF_INITDOMAIN|SIF_PRIVILEGED);
+
 	if (!shared_info_page)
 		shared_info_page = (struct shared_info *)
 			get_zeroed_page(GFP_KERNEL);
diff --git a/trunk/include/xen/interface/features.h b/trunk/include/xen/interface/features.h
index b6ca39a069d8..131a6ccdba25 100644
--- a/trunk/include/xen/interface/features.h
+++ b/trunk/include/xen/interface/features.h
@@ -50,6 +50,9 @@
 /* x86: pirq can be used by HVM guests */
 #define XENFEAT_hvm_pirqs           10
 
+/* operation as Dom0 is supported */
+#define XENFEAT_dom0                      11
+
 #define XENFEAT_NR_SUBMAPS 1
 
 #endif /* __XEN_PUBLIC_FEATURES_H__ */