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diff --git a/UefiCpuPkg/CpuDxe/CpuDxe.h b/UefiCpuPkg/CpuDxe/CpuDxe.h
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+++ b/UefiCpuPkg/CpuDxe/CpuDxe.h
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+/** @file
+ CPU DXE Module.
+
+ Copyright (c) 2008 - 2009, Intel Corporation
+ All rights reserved. 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_DXE_H
+#define _CPU_DXE_H
+
+#include <PiDxe.h>
+
+#include <Protocol/Cpu.h>
+
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/DxeServicesTableLib.h>
+#include <Library/BaseLib.h>
+#include <Library/CpuLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/DebugLib.h>
+#include <Library/MtrrLib.h>
+
+//
+//
+//
+#define INTERRUPT_VECTOR_NUMBER 256
+
+#define EFI_MEMORY_CACHETYPE_MASK (EFI_MEMORY_UC | \
+ EFI_MEMORY_WC | \
+ EFI_MEMORY_WT | \
+ EFI_MEMORY_WB | \
+ EFI_MEMORY_UCE \
+ )
+
+
+//
+// Function declarations
+//
+EFI_STATUS
+EFIAPI
+CpuFlushCpuDataCache (
+ IN EFI_CPU_ARCH_PROTOCOL *This,
+ IN EFI_PHYSICAL_ADDRESS Start,
+ IN UINT64 Length,
+ IN EFI_CPU_FLUSH_TYPE FlushType
+ );
+
+EFI_STATUS
+EFIAPI
+CpuEnableInterrupt (
+ IN EFI_CPU_ARCH_PROTOCOL *This
+ );
+
+EFI_STATUS
+EFIAPI
+CpuDisableInterrupt (
+ IN EFI_CPU_ARCH_PROTOCOL *This
+ );
+
+EFI_STATUS
+EFIAPI
+CpuGetInterruptState (
+ IN EFI_CPU_ARCH_PROTOCOL *This,
+ OUT BOOLEAN *State
+ );
+
+EFI_STATUS
+EFIAPI
+CpuInit (
+ IN EFI_CPU_ARCH_PROTOCOL *This,
+ IN EFI_CPU_INIT_TYPE InitType
+ );
+
+EFI_STATUS
+EFIAPI
+CpuRegisterInterruptHandler (
+ IN EFI_CPU_ARCH_PROTOCOL *This,
+ IN EFI_EXCEPTION_TYPE InterruptType,
+ IN EFI_CPU_INTERRUPT_HANDLER InterruptHandler
+ );
+
+EFI_STATUS
+EFIAPI
+CpuGetTimerValue (
+ IN EFI_CPU_ARCH_PROTOCOL *This,
+ IN UINT32 TimerIndex,
+ OUT UINT64 *TimerValue,
+ OUT UINT64 *TimerPeriod OPTIONAL
+ );
+
+EFI_STATUS
+EFIAPI
+CpuSetMemoryAttributes (
+ IN EFI_CPU_ARCH_PROTOCOL *This,
+ IN EFI_PHYSICAL_ADDRESS BaseAddress,
+ IN UINT64 Length,
+ IN UINT64 Attributes
+ );
+
+VOID
+EFIAPI
+AsmIdtVector00 (
+ VOID
+ );
+
+VOID
+EFIAPI
+InitializeExternalVectorTablePtr (
+ EFI_CPU_INTERRUPT_HANDLER *VectorTable
+ );
+
+VOID
+InitGlobalDescriptorTable (
+ VOID
+ );
+
+VOID
+EFIAPI
+SetCodeSelector (
+ UINT16 Selector
+ );
+
+VOID
+EFIAPI
+SetDataSelectors (
+ UINT16 Selector
+ );
+
+
+#endif
+