/** @file
  Master header file for DxeIpl PEIM. All source files in this module should
  include this file for common defininitions.

Copyright (c) 2006 - 2008, Intel Corporation. <BR>
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 __PEI_DXEIPL_H__
#define __PEI_DXEIPL_H__

#include <PiPei.h>
#include <Ppi/DxeIpl.h>
#include <Ppi/EndOfPeiPhase.h>
#include <Ppi/MemoryDiscovered.h>
#include <Ppi/ReadOnlyVariable2.h>
#include <Ppi/Decompress.h>
#include <Ppi/FirmwareVolumeInfo.h>
#include <Ppi/GuidedSectionExtraction.h>

#include <Guid/MemoryTypeInformation.h>
#include <Guid/MemoryAllocationHob.h>
#include <Guid/FirmwareFileSystem2.h>

#include <Library/DebugLib.h>
#include <Library/PeimEntryPoint.h>
#include <Library/BaseLib.h>
#include <Library/HobLib.h>
#include <Library/PeiServicesLib.h>
#include <Library/ReportStatusCodeLib.h>
#include <Library/CacheMaintenanceLib.h>
#include <Library/UefiDecompressLib.h>
#include <Library/ExtractGuidedSectionLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/PcdLib.h>
#include <Library/PeCoffLib.h>
#include <Library/S3Lib.h>
#include <Library/RecoveryLib.h>

#define STACK_SIZE      0x20000
#define BSP_STORE_SIZE  0x4000


//
// This macro aligns the ActualSize with a given alignment and is used to 
// calculate the size an image occupies.
//
#define GET_OCCUPIED_SIZE(ActualSize, Alignment) ((ActualSize + (Alignment - 1)) & ~(Alignment - 1))

//
// Indicate whether DxeIpl has been shadowed to memory.
//
extern BOOLEAN gInMemory;

//
// This PPI is installed to indicate the end of the PEI usage of memory 
//
extern CONST EFI_PEI_PPI_DESCRIPTOR gEndOfPeiSignalPpi;



/**
   Loads and relocates a PE/COFF image into memory.

   @param FileHandle        The image file handle
   @param ImageAddress      The base address of the relocated PE/COFF image
   @param ImageSize         The size of the relocated PE/COFF image
   @param EntryPoint        The entry point of the relocated PE/COFF image
   
   @return EFI_SUCCESS           The file was loaded and relocated
   @return EFI_OUT_OF_RESOURCES  There was not enough memory to load and relocate the PE/COFF file

**/
EFI_STATUS
PeiLoadFile (
  IN  EFI_PEI_FILE_HANDLE                       FileHandle,
  OUT EFI_PHYSICAL_ADDRESS                      *ImageAddress,
  OUT UINT64                                    *ImageSize,
  OUT EFI_PHYSICAL_ADDRESS                      *EntryPoint
  );



/**
   Searches DxeCore in all firmware Volumes and loads the first
   instance that contains DxeCore.

   @return FileHandle of DxeCore to load DxeCore.
   
**/
EFI_PEI_FILE_HANDLE
DxeIplFindDxeCore (
  VOID
  );


/**
   This function simply retrieves the function pointer of ImageRead in
   ImageContext structure.
    
   @param ImageContext       A pointer to the structure of 
                             PE_COFF_LOADER_IMAGE_CONTEXT
   
   @retval EFI_SUCCESS       This function always return EFI_SUCCESS.

**/
EFI_STATUS
GetImageReadFunction (
  IN      PE_COFF_LOADER_IMAGE_CONTEXT  *ImageContext
  );


/**
   Main entry point to last PEIM 
    
   @param This          Entry point for DXE IPL PPI
   @param PeiServices   General purpose services available to every PEIM.
   @param HobList       Address to the Pei HOB list
   
   @return EFI_SUCCESS              DXE core was successfully loaded. 
   @return EFI_OUT_OF_RESOURCES     There are not enough resources to load DXE core.

**/
EFI_STATUS
EFIAPI
DxeLoadCore (
  IN CONST EFI_DXE_IPL_PPI *This,
  IN EFI_PEI_SERVICES      **PeiServices,
  IN EFI_PEI_HOB_POINTERS  HobList
  );



/**
   Transfers control to DxeCore.

   This function performs a CPU architecture specific operations to execute
   the entry point of DxeCore with the parameters of HobList.
   It also intalls EFI_END_OF_PEI_PPI to signal the end of PEI phase.

   @param DxeCoreEntryPoint         The entrypoint of DxeCore.
   @param HobList                   The start of HobList passed to DxeCore.

**/
VOID
HandOffToDxeCore (
  IN EFI_PHYSICAL_ADDRESS   DxeCoreEntryPoint,
  IN EFI_PEI_HOB_POINTERS   HobList
  );



/**
   Updates the Stack HOB passed to DXE phase.

   This function traverses the whole HOB list and update the stack HOB to
   reflect the real stack that is used by DXE core.

   @param BaseAddress           The lower address of stack used by DxeCore.
   @param Length                The length of stack used by DxeCore.

**/
VOID
UpdateStackHob (
  IN EFI_PHYSICAL_ADDRESS        BaseAddress,
  IN UINT64                      Length
  );

/**
  The ExtractSection() function processes the input section and
  returns a pointer to the section contents. If the section being
  extracted does not require processing (if the section
  GuidedSectionHeader.Attributes has the
  EFI_GUIDED_SECTION_PROCESSING_REQUIRED field cleared), then
  OutputBuffer is just updated to point to the start of the
  section's contents. Otherwise, *Buffer must be allocated
  from PEI permanent memory.

  @param This                   Indicates the
                                EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI instance.
                                Buffer containing the input GUIDed section to be
                                processed. OutputBuffer OutputBuffer is
                                allocated from PEI permanent memory and contains
                                the new section stream.
  @param InputSection           A pointer to the input buffer, which contains
                                the input section to be processed.
  @param OutputBuffer           A pointer to a caller-allocated buffer, whose
                                size is specified by the contents of OutputSize.
  @param OutputSize             A pointer to a caller-allocated
                                UINTN in which the size of *OutputBuffer
                                allocation is stored. If the function
                                returns anything other than EFI_SUCCESS,
                                the value of OutputSize is undefined.
  @param AuthenticationStatus   A pointer to a caller-allocated
                                UINT32 that indicates the
                                authentication status of the
                                output buffer. If the input
                                section's GuidedSectionHeader.
                                Attributes field has the
                                EFI_GUIDED_SECTION_AUTH_STATUS_VALID 
                                bit as clear,
                                AuthenticationStatus must return
                                zero. These bits reflect the
                                status of the extraction
                                operation. If the function
                                returns anything other than
                                EFI_SUCCESS, the value of
                                AuthenticationStatus is
                                undefined.
  
  @retval EFI_SUCCESS           The InputSection was
                                successfully processed and the
                                section contents were returned.
  
  @retval EFI_OUT_OF_RESOURCES  The system has insufficient
                                resources to process the request.
  
  @retval EFI_INVALID_PARAMETER The GUID in InputSection does
                                not match this instance of the
                                GUIDed Section Extraction PPI.

**/
EFI_STATUS
CustomGuidedSectionExtract (
  IN CONST  EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI *This,
  IN CONST  VOID                                  *InputSection,
  OUT       VOID                                  **OutputBuffer,
  OUT       UINTN                                 *OutputSize,
  OUT       UINT32                                *AuthenticationStatus
  );


/**
   Decompresses a section to the output buffer.

   This function lookes up the compression type field in the input section and
   applies the appropriate compression algorithm to compress the section to a
   callee allocated buffer.
    
   @param  This                  Points to this instance of the
                                 EFI_PEI_DECOMPRESS_PEI PPI.
   @param  CompressionSection    Points to the compressed section.
   @param  OutputBuffer          Holds the returned pointer to the decompressed
                                 sections.
   @param  OutputSize            Holds the returned size of the decompress
                                 section streams.
   
   @retval EFI_SUCCESS           The section was decompressed successfully.
                                 OutputBuffer contains the resulting data and
                                 OutputSize contains the resulting size.

**/
EFI_STATUS
EFIAPI 
Decompress (
  IN CONST  EFI_PEI_DECOMPRESS_PPI  *This,
  IN CONST  EFI_COMPRESSION_SECTION *CompressionSection,
  OUT       VOID                    **OutputBuffer,
  OUT       UINTN                   *OutputSize
  );

/**
  Initializes the Dxe Ipl PPI

  @param  FfsHandle   The handle of FFS file.
  @param  PeiServices General purpose services available to
                      every PEIM.
  @return EFI_SUCESS

**/
EFI_STATUS
EFIAPI
PeimInitializeDxeIpl (
  IN EFI_PEI_FILE_HANDLE       FfsHandle,
  IN EFI_PEI_SERVICES          **PeiServices
  );


#endif