diff --git a/OvmfPkg/Include/Guid/XenBusRootDevice.h b/OvmfPkg/Include/Guid/XenBusRootDevice.h
new file mode 100644
index 0000000000..2b6e710180
--- /dev/null
+++ b/OvmfPkg/Include/Guid/XenBusRootDevice.h
@@ -0,0 +1,24 @@
+/** @file
+  GUID to be used to identify the XenBus root node on non-PCI Xen guests
+
+  Copyright (C) 2015, Linaro Ltd.
+
+  This program and the accompanying materials are licensed and made available
+  under the terms and conditions of the BSD License that accompanies this
+  distribution. The full text of the license may be found at
+  http://opensource.org/licenses/bsd-license.php.
+
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
+  WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#ifndef __XENBUS_ROOT_DEVICE_H__
+#define __XENBUS_ROOT_DEVICE_H__
+
+#define XENBUS_ROOT_DEVICE_GUID \
+{0xa732241f, 0x383d, 0x4d9c, {0x8a, 0xe1, 0x8e, 0x09, 0x83, 0x75, 0x89, 0xd7}}
+
+extern EFI_GUID gXenBusRootDeviceGuid;
+
+#endif
diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec
index 3711fa9223..d616002259 100644
--- a/OvmfPkg/OvmfPkg.dec
+++ b/OvmfPkg/OvmfPkg.dec
@@ -53,6 +53,7 @@
   gEfiXenInfoGuid                 = {0xd3b46f3b, 0xd441, 0x1244, {0x9a, 0x12, 0x0, 0x12, 0x27, 0x3f, 0xc1, 0x4d}}
   gOvmfPlatformConfigGuid         = {0x7235c51c, 0x0c80, 0x4cab, {0x87, 0xac, 0x3b, 0x08, 0x4a, 0x63, 0x04, 0xb1}}
   gVirtioMmioTransportGuid        = {0x837dca9e, 0xe874, 0x4d82, {0xb2, 0x9a, 0x23, 0xfe, 0x0e, 0x23, 0xd1, 0xe2}}
+  gXenBusRootDeviceGuid           = {0xa732241f, 0x383d, 0x4d9c, {0x8a, 0xe1, 0x8e, 0x09, 0x83, 0x75, 0x89, 0xd7}}
 
 [Protocols]
   gVirtioDeviceProtocolGuid       = {0xfa920010, 0x6785, 0x4941, {0xb6, 0xec, 0x49, 0x8c, 0x57, 0x9f, 0x16, 0x0a}}