uefi/linaro-edk2/MdePkg/Include/Ppi/LoadFile.h

/** @file
  Load image file from fv to memory. 

  Copyright (c) 2006 - 2013, 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.             

  @par Revision Reference:
  This PPI is introduced in PI Version 1.0.

**/

#ifndef __LOAD_FILE_PPI_H__
#define __LOAD_FILE_PPI_H__

#define EFI_PEI_LOAD_FILE_PPI_GUID \
  { 0xb9e0abfe, 0x5979, 0x4914, { 0x97, 0x7f, 0x6d, 0xee, 0x78, 0xc2, 0x78, 0xa6 } }


typedef struct _EFI_PEI_LOAD_FILE_PPI EFI_PEI_LOAD_FILE_PPI;

/**
  Loads a PEIM into memory for subsequent execution.

  This service is the single member function of EFI_LOAD_FILE_PPI.
  This service separates image loading and relocating from the PEI Foundation.
  
  @param This                   Interface pointer that implements
                                the Load File PPI instance.
  @param FileHandle             File handle of the file to load.
  @param ImageAddress           Pointer to the address of the loaded image.
  @param ImageSize              Pointer to the size of the loaded image.
  @param EntryPoint             Pointer to the entry point of the image.
  @param AuthenticationState    On exit, points to the attestation
                                authentication state of the image
                                or 0 if no attestation was performed.

  @retval EFI_SUCCESS           The image was loaded successfully.
  @retval EFI_OUT_OF_RESOURCES  There was not enough memory.
  @retval EFI_LOAD_ERROR        There was no supported image in the file.
  @retval EFI_INVALID_PARAMETER FileHandle was not a valid firmware file handle.
  @retval EFI_INVALID_PARAMETER EntryPoint was NULL.
  @retval EFI_UNSUPPORTED       An image requires relocations or is not
                                memory mapped.
  @retval EFI_WARN_BUFFER_TOO_SMALL 
                                There is not enough heap to allocate the requested size.
                                This will not prevent the XIP image from being invoked.

**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_LOAD_FILE)(
  IN  CONST  EFI_PEI_LOAD_FILE_PPI   *This,
  IN  EFI_PEI_FILE_HANDLE            FileHandle,
  OUT EFI_PHYSICAL_ADDRESS           *ImageAddress,
  OUT UINT64                         *ImageSize,
  OUT EFI_PHYSICAL_ADDRESS           *EntryPoint,
  OUT UINT32                         *AuthenticationState
);

///
/// This PPI is a pointer to the Load File service.
/// This service will be published by a PEIM. The PEI Foundation
/// will use this service to launch the known PEI module images.
///
struct _EFI_PEI_LOAD_FILE_PPI {
  EFI_PEI_LOAD_FILE LoadFile;
};

extern EFI_GUID gEfiPeiLoadFilePpiGuid;

#endif