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diff --git a/Core/UefiCpuPkg/Include/CpuHotPlugData.h b/Core/UefiCpuPkg/Include/CpuHotPlugData.h
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+/** @file
+Definition for a structure sharing information for CPU hot plug.
+
+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 _CPU_HOT_PLUG_DATA_H_
+#define _CPU_HOT_PLUG_DATA_H_
+
+#define CPU_HOT_PLUG_DATA_REVISION_1 0x00000001
+
+typedef struct {
+ UINT32 Revision; // Used for version identification for this structure
+ UINT32 ArrayLength; // The entries number of the following ApicId array and SmBase array
+ //
+ // Data required for SMBASE relocation
+ //
+ UINT64 *ApicId; // Pointer to ApicId array
+ UINTN *SmBase; // Pointer to SmBase array
+ UINT32 Reserved;
+ UINT32 SmrrBase;
+ UINT32 SmrrSize;
+} CPU_HOT_PLUG_DATA;
+
+#endif