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diff --git a/MdePkg/Include/Protocol/PiPcdInfo.h b/MdePkg/Include/Protocol/PiPcdInfo.h
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+++ b/MdePkg/Include/Protocol/PiPcdInfo.h
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+/** @file
+  Platform Configuration Database (PCD) Info Protocol defined in PI 1.2.1 Vol3.
+
+  The protocol that provides additional information about items that reside in the PCD database.
+
+  Copyright (c) 2013, 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.
+
+  @par Revision Reference:
+  PI Version 1.2.1 Vol 3.
+**/
+
+#ifndef __PI_PCD_INFO_H__
+#define __PI_PCD_INFO_H__
+
+extern EFI_GUID gEfiGetPcdInfoProtocolGuid;
+
+#define EFI_GET_PCD_INFO_PROTOCOL_GUID \
+  { 0xfd0f4478,  0xefd, 0x461d, { 0xba, 0x2d, 0xe5, 0x8c, 0x45, 0xfd, 0x5f, 0x5e } }
+
+///
+/// The forward declaration for EFI_GET_PCD_INFO_PROTOCOL.
+///
+typedef struct _EFI_GET_PCD_INFO_PROTOCOL  EFI_GET_PCD_INFO_PROTOCOL;
+
+/**
+  Retrieve additional information associated with a PCD token.
+
+  This includes information such as the type of value the TokenNumber is associated with as well as possible
+  human readable name that is associated with the token.
+
+  @param[in]    Guid        The 128-bit unique value that designates the namespace from which to extract the value.
+  @param[in]    TokenNumber The PCD token number.
+  @param[out]   PcdInfo     The returned information associated with the requested TokenNumber.
+
+  @retval  EFI_SUCCESS      The PCD information was returned successfully
+  @retval  EFI_NOT_FOUND    The PCD service could not find the requested token number.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EFI_GET_PCD_INFO_PROTOCOL_GET_INFO) (
+  IN CONST  EFI_GUID        *Guid,
+  IN        UINTN           TokenNumber,
+  OUT       EFI_PCD_INFO    *PcdInfo
+);
+
+/**
+  Retrieve the currently set SKU Id.
+
+  @return   The currently set SKU Id. If the platform has not set at a SKU Id, then the
+            default SKU Id value of 0 is returned. If the platform has set a SKU Id, then the currently set SKU
+            Id is returned.
+**/
+typedef
+UINTN
+(EFIAPI *EFI_GET_PCD_INFO_PROTOCOL_GET_SKU) (
+  VOID
+);
+
+///
+/// Callers to this protocol must be at a TPL_APPLICATION task priority level.
+/// This is the PCD service to use when querying for some additional data that can be contained in the
+/// PCD database.
+///
+struct _EFI_GET_PCD_INFO_PROTOCOL {
+  ///
+  /// Retrieve additional information associated with a PCD.
+  ///
+  EFI_GET_PCD_INFO_PROTOCOL_GET_INFO    GetInfo;
+  ///
+  /// Retrieve the currently set SKU Id.
+  ///
+  EFI_GET_PCD_INFO_PROTOCOL_GET_SKU     GetSku;
+};
+
+#endif
+