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diff --git a/ReferenceCode/ME/Ppi/PlatformMeHook/PlatformMeHook.h b/ReferenceCode/ME/Ppi/PlatformMeHook/PlatformMeHook.h
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+++ b/ReferenceCode/ME/Ppi/PlatformMeHook/PlatformMeHook.h
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+/** @file
+  Interface definition details for platform hook support to ME module.
+
+@copyright
+  Copyright (c) 2010 - 2012 Intel Corporation. All rights reserved
+  This software and associated documentation (if any) is furnished
+  under a license and may only be used or copied in accordance
+  with the terms of the license. Except as permitted by such
+  license, no part of this software or documentation may be
+  reproduced, stored in a retrieval system, or transmitted in any
+  form or by any means without the express written consent of
+  Intel Corporation.
+
+  This file contains a 'Sample Driver' and is licensed as such
+  under the terms of your license agreement with Intel or your
+  vendor.  This file may be modified by the user, subject to
+  the additional terms of the license agreement
+**/
+#ifndef _PLATFORM_ME_HOOK_PPI_H_
+#define _PLATFORM_ME_HOOK_PPI_H_
+
+///
+/// ME Hook provided by platform for PEI phase
+/// This ppi provides an interface to hook reference code by OEM.
+///
+#define PLATFORM_ME_HOOK_PPI_GUID \
+  { \
+    0xe806424f, 0xd425, 0x4b1a, 0xbc, 0x26, 0x5f, 0x69, 0x03, 0x89, 0xa1, 0x5a \
+  }
+
+extern EFI_GUID gPlatformMeHookPpiGuid;
+
+EFI_FORWARD_DECLARATION (PLATFORM_ME_HOOK_PPI);
+
+//
+// Revision
+//
+#define PLATFORM_ME_HOOK_PPI_REVISION 1
+
+/**
+  Platform hook before BIOS sends Global Reset Heci Message to ME
+
+  @param[in] PeiServices          General purpose services available to every PEIM.
+  @param[in] This                 Pointer to this PLATFORM_ME_HOOK_PPI
+
+  @retval EFI Status Code
+**/
+typedef
+EFI_STATUS
+(EFIAPI *PLATFORM_ME_HOOK_PRE_GLOBAL_RESET) (
+  IN      EFI_PEI_SERVICES             **PeiServices,
+  IN      PLATFORM_ME_HOOK_PPI         *This
+  );
+
+///
+/// ME Hook provided by platform for PEI phase
+/// This ppi provides an interface to hook reference code by OEM.
+///
+struct _PLATFORM_ME_HOOK_PPI {
+  ///
+  /// Revision for the ppi structure
+  ///
+  UINT8                             Revision;
+  ///
+  /// Function pointer for the hook called before BIOS sends Global Reset Heci Message to ME
+  //
+  PLATFORM_ME_HOOK_PRE_GLOBAL_RESET PreGlobalReset;
+};
+
+#endif