diff --git a/EdkCompatibilityPkg/Compatibility/Include/Guid/BootState.h b/EdkCompatibilityPkg/Compatibility/Include/Guid/BootState.h
new file mode 100644
index 0000000000..fef191b22e
--- /dev/null
+++ b/EdkCompatibilityPkg/Compatibility/Include/Guid/BootState.h
@@ -0,0 +1,22 @@
+/** @file
+  GUID for use conveying the boot-state to PEI.
+
+  Copyright (c) 2010, Intel Corporation
+  All rights reserved. This program and the accompanying materials
+  are licensed and made available under the terms and conditions of the BSD License
+  which 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 _BOOT_STATE_H_
+#define _BOOT_STATE_H_
+
+#define  EFI_BOOT_STATE_VARIABLE_GUID  \
+  { 0x60b5e939, 0xfcf, 0x4227, { 0xba, 0x83, 0x6b, 0xbe, 0xd4, 0x5b, 0xc0, 0xe3 } }
+
+extern EFI_GUID gEfiBootStateGuid;
+
+#endif
diff --git a/EdkCompatibilityPkg/EdkCompatibilityPkg.dec b/EdkCompatibilityPkg/EdkCompatibilityPkg.dec
index e9752f93eb..a0f1127949 100644
--- a/EdkCompatibilityPkg/EdkCompatibilityPkg.dec
+++ b/EdkCompatibilityPkg/EdkCompatibilityPkg.dec
@@ -57,6 +57,7 @@
 
 [Guids]
   gEfiSmmBaseThunkCommunicationGuid       = { 0x6568a3d6, 0x15f, 0x4b4a, { 0x9c, 0x89, 0x1d, 0x14, 0x63, 0x14, 0x13, 0xa } }
+  gEfiBootStateGuid                       = { 0x60b5e939, 0xfcf, 0x4227, { 0xba, 0x83, 0x6b, 0xbe, 0xd4, 0x5b, 0xc0, 0xe3 } }
 
 [Ppis]
   gEcpPeiPciCfgPpiGuid                    = { 0xb0ee53d4, 0xa049, 0x4a79, { 0xb2, 0xff, 0x19, 0xd9, 0xfa, 0xef, 0xaa, 0x94 }}