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diff --git a/BraswellPlatformPkg/Common/Silicon/IntelSiliconBasic/CpuInit/x64/ProcessorDef.h b/BraswellPlatformPkg/Common/Silicon/IntelSiliconBasic/CpuInit/x64/ProcessorDef.h
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+++ b/BraswellPlatformPkg/Common/Silicon/IntelSiliconBasic/CpuInit/x64/ProcessorDef.h
@@ -0,0 +1,57 @@
+/** @file
+ Definition for EM64T processor.
+
+ Copyright (c) 2004 - 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 _PROCESSOR_DEF_H
+#define _PROCESSOR_DEF_H
+
+#pragma pack(1)
+/**
+ @todo @todo add structure description
+
+**/
+typedef struct {
+ UINT16 Offset15To0;
+ UINT16 SegmentSelector;
+ UINT16 Attributes;
+ UINT16 Offset31To16;
+ UINT32 Offset63To32;
+ UINT32 Reserved;
+} INTERRUPT_GATE_DESCRIPTOR;
+
+#pragma pack()
+/**
+ @todo @todo add structure description
+
+**/
+typedef struct {
+ UINT8 *RendezvousFunnelAddress;
+ UINTN PModeEntryOffset;
+ UINTN FlatJumpOffset;
+ UINTN LModeEntryOffset;
+ UINTN LongJumpOffset;
+ UINTN Size;
+} MP_ASSEMBLY_ADDRESS_MAP;
+/**
+ Get address map of RendezvousFunnelProc.
+
+ @param[out] AddressMap - Output buffer for address map information
+
+**/
+VOID
+AsmGetAddressMap (
+ OUT MP_ASSEMBLY_ADDRESS_MAP *AddressMap
+ );
+
+#endif