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diff --git a/EdkCompatibilityPkg/Sample/Tools/Source/GenFvImage/GenFvImageLib.h b/EdkCompatibilityPkg/Sample/Tools/Source/GenFvImage/GenFvImageLib.h
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+++ b/EdkCompatibilityPkg/Sample/Tools/Source/GenFvImage/GenFvImageLib.h
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+/*++
+
+Copyright (c) 2004, 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.             
+
+Module Name:
+  
+  GenFvImageLib.h
+
+Abstract:
+
+  This file contains describes the public interfaces to the GenFvImage Library.
+  The basic purpose of the library is to create Firmware Volume images.
+
+--*/
+
+#ifndef _EFI_GEN_FV_IMAGE_LIB_H
+#define _EFI_GEN_FV_IMAGE_LIB_H
+
+//
+// Include files
+//
+#include "Efi2WinNT.h"
+#include "ParseInf.h"
+
+//
+// Following definition is used for FIT in IPF
+//
+#define COMP_TYPE_FIT_PEICORE 0x10
+#define COMP_TYPE_FIT_UNUSED  0x7F
+
+#define FIT_TYPE_MASK         0x7F
+#define CHECKSUM_BIT_MASK     0x80
+
+#pragma pack(1)
+
+typedef struct {
+  UINT64  CompAddress;
+  UINT32  CompSize;
+  UINT16  CompVersion;
+  UINT8   CvAndType;
+  UINT8   CheckSum;
+} FIT_TABLE;
+
+#pragma pack()
+//
+// Exported function prototypes
+//
+EFI_STATUS
+GenerateFvImage (
+  IN CHAR8    *InfFileImage,
+  IN UINTN    InfFileSize,
+  OUT UINT8   **FvImage,
+  OUT UINTN   *FvImageSize,
+  OUT CHAR8   **FvFileName,
+  OUT UINT8   **SymImage,
+  OUT UINTN   *SymImageSize,
+  OUT CHAR8   **SymFileName
+  )
+;
+
+/*++
+
+Routine Description:
+
+  This is the main function which will be called from application.
+
+Arguments:
+
+  InfFileImage  Buffer containing the INF file contents.
+  InfFileSize   Size of the contents of the InfFileImage buffer.
+  FvImage       Pointer to the FV image created.
+  FvImageSize   Size of the FV image created and pointed to by FvImage.
+  FvFileName    Requested name for the FV file.
+  SymImage      Pointer to the Sym image created.
+  SymImageSize  Size of the Sym image created and pointed to by SymImage.
+  SymFileName   Requested name for the Sym file.
+    
+Returns:
+ 
+  EFI_SUCCESS             Function completed successfully.
+  EFI_OUT_OF_RESOURCES    Could not allocate required resources.
+  EFI_ABORTED             Error encountered.
+  EFI_INVALID_PARAMETER   A required parameter was NULL.
+
+--*/
+EFI_STATUS
+UpdatePeiCoreEntryInFit (
+  IN FIT_TABLE     *FitTablePtr,
+  IN UINT64        PeiCorePhysicalAddress
+  )
+;
+
+/*++
+
+Routine Description:
+
+  This function is used to update the Pei Core address in FIT, this can be used by Sec core to pass control from
+  Sec to Pei Core
+
+Arguments:
+
+  FitTablePtr             - The pointer of FIT_TABLE.
+  PeiCorePhysicalAddress  - The address of Pei Core entry.
+
+Returns:
+
+  EFI_SUCCESS             - The PEI_CORE FIT entry was updated successfully.
+  EFI_NOT_FOUND           - Not found the PEI_CORE FIT entry.
+
+--*/
+VOID
+UpdateFitCheckSum (
+  IN FIT_TABLE   *FitTablePtr
+  )
+;
+
+/*++
+
+Routine Description:
+
+  This function is used to update the checksum for FIT.
+
+
+Arguments:
+
+  FitTablePtr             - The pointer of FIT_TABLE.
+
+Returns:
+
+  None.
+
+--*/
+#endif