MdeModulePkg: Add SMM LockBox

This includes:
* LockBox protocol definition
* LockBoxLib library interface definition
* SmmLockBox GUID
* LockBoxNullLib library implementation
* 2 SmmLockBoxLib library implementations
* SmmLockBox SMM driver

Signed-off-by: jljusten
Reviewed-by: mdkinney
Reviewed-by: geekboy15a
Reviewed-by: jyao1
Reviewed-by: lgao4

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12029 6f19259b-4bc3-4df7-8a09-765794883524

MdeModulePkg/Library/SmmLockBoxLib/SmmLockBoxLibPrivate.h

@@ -0,0 +1,54 @@
+/** @file
+
+Copyright (c) 2010, 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_LOCK_BOX_LIB_PRIVATE_H_
+#define _SMM_LOCK_BOX_LIB_PRIVATE_H_
+
+#include <Uefi.h>
+
+#pragma pack(push, 1)
+
+//
+// Below data structure is used for lockbox registration in SMST
+//
+
+#define SMM_LOCK_BOX_SIGNATURE_32 SIGNATURE_64 ('L','O','C','K','B','_','3','2')
+#define SMM_LOCK_BOX_SIGNATURE_64 SIGNATURE_64 ('L','O','C','K','B','_','6','4')
+
+typedef struct {
+  UINT64                   Signature;
+  EFI_PHYSICAL_ADDRESS     LockBoxDataAddress;
+} SMM_LOCK_BOX_CONTEXT;
+
+//
+// Below data structure is used for lockbox management
+//
+
+#define SMM_LOCK_BOX_DATA_SIGNATURE SIGNATURE_64 ('L','O','C','K','B','O','X','D')
+
+typedef struct {
+  UINT64                         Signature;
+  EFI_GUID                       Guid;
+  EFI_PHYSICAL_ADDRESS           Buffer;
+  UINT64                         Length;
+  UINT64                         Attributes;
+  EFI_PHYSICAL_ADDRESS           SmramBuffer;
+  LIST_ENTRY                     Link;
+} SMM_LOCK_BOX_DATA;
+
+#pragma pack(pop)
+
+#endif
+