Add into MdePkg definitions for the DXE SMM Ready To Lock protocol as defined in the PI 1.2 specification.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9217 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Include/Protocol/DxeSmmReadyToLock.h

@@ -0,0 +1,29 @@
+/** @file
+  DXE SMM Ready To Lock protocol as defined in the PI 1.2 specification.
+
+  This UEFI protocol indicates that SMM is about to be locked.
+  This protocol is a mandatory protocol published by a DXE driver prior to invoking the 
+  EFI_SMM_ACCESS2_PROTOCOL.Lock() function to lock SMM. 
+
+  Copyright (c) 2009, 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 _DXE_SMM_READY_TO_LOCK_H_
+#define _DXE_SMM_READY_TO_LOCK_H_
+
+#define EFI_DXE_SMM_READY_TO_LOCK_PROTOCOL_GUID \
+  { \
+    0x60ff8964, 0xe906, 0x41d0, { 0xaf, 0xed, 0xf2, 0x41, 0xe9, 0x74, 0xe0, 0x8e } \
+  }
+
+extern EFI_GUID gEfiDxeSmmReadyToLockProtocolGuid;
+
+#endif