Add PI1.2.1 EndOfDxe support.

Signed-off-by: jiewen.yao@intel.com
Reviewed-by: michael.d.kinney@intel.com

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@14009 6f19259b-4bc3-4df7-8a09-765794883524

MdePkg/Include/Protocol/SmmEndOfDxe.h

@@ -0,0 +1,28 @@
+/** @file
+  SMM End Of Dxe protocol as defined in the PI 1.2.1 specification.
+
+  This protocol is a mandatory protocol published by the PI platform code prior to invoking any
+  3rd party content, including options ROM's and UEFI executables that are not from the platform manufacturer.
+
+  Copyright (c) 2012, Intel Corporation. All rights reserved.<BR>
+  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 _SMM_END_OF_DXE_H_
+#define _SMM_END_OF_DXE_H_
+
+#define EFI_SMM_END_OF_DXE_PROTOCOL_GUID \
+  { \
+    0x24e70042, 0xd5c5, 0x4260, { 0x8c, 0x39, 0xa, 0xd3, 0xaa, 0x32, 0xe9, 0x3d } \
+  }
+
+extern EFI_GUID gEfiSmmEndOfDxeProtocolGuid;
+
+#endif