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diff --git a/UefiCpuPkg/Include/Library/PlatformSecLib.h b/UefiCpuPkg/Include/Library/PlatformSecLib.h
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+++ b/UefiCpuPkg/Include/Library/PlatformSecLib.h
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+/** @file
+This library class defines interface for platform to perform platform
+specific initialization in SEC phase.
+
+Copyright (c) 2013 - 2015, 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 __PLATFORM_SEC_LIB_H__
+#define __PLATFORM_SEC_LIB_H__
+
+/**
+  A developer supplied function to perform platform specific operations.
+
+  It's a developer supplied function to perform any operations appropriate to a
+  given platform. It's invoked just before passing control to PEI core by SEC
+  core. Platform developer may modify the SecCoreData passed to PEI Core.
+  It returns a platform specific PPI list that platform wishes to pass to PEI core.
+  The Generic SEC core module will merge this list to join the final list passed to
+  PEI core.
+
+  @param  SecCoreData           The same parameter as passing to PEI core. It
+                                could be overridden by this function.
+
+  @return The platform specific PPI list to be passed to PEI core or
+          NULL if there is no need of such platform specific PPI list.
+
+**/
+EFI_PEI_PPI_DESCRIPTOR *
+EFIAPI
+SecPlatformMain (
+  IN OUT   EFI_SEC_PEI_HAND_OFF        *SecCoreData
+  );
+
+/**
+  This interface conveys state information out of the Security (SEC) phase into PEI.
+
+  @param  PeiServices               Pointer to the PEI Services Table.
+  @param  StructureSize             Pointer to the variable describing size of the input buffer.
+  @param  PlatformInformationRecord Pointer to the EFI_SEC_PLATFORM_INFORMATION_RECORD.
+
+  @retval EFI_SUCCESS           The data was successfully returned.
+  @retval EFI_BUFFER_TOO_SMALL  The buffer was too small.
+
+**/
+EFI_STATUS
+EFIAPI
+SecPlatformInformation (
+  IN CONST EFI_PEI_SERVICES                     **PeiServices,
+  IN OUT   UINT64                               *StructureSize,
+     OUT   EFI_SEC_PLATFORM_INFORMATION_RECORD  *PlatformInformationRecord
+  );
+
+/**
+  This interface disables temporary memory in SEC Phase.
+**/
+VOID
+EFIAPI
+SecPlatformDisableTemporaryMemory (
+  VOID
+  );
+
+#endif