audk/MdePkg/Include/Protocol/LoadedImage.h

/** @file
  UEFI 2.0 Loaded image protocol definition.

  Every EFI driver and application is passed an image handle when it is loaded.
  This image handle will contain a Loaded Image Protocol.

  Copyright (c) 2006 - 2008, 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 __LOADED_IMAGE_PROTOCOL_H__
#define __LOADED_IMAGE_PROTOCOL_H__

#include <Protocol/DevicePath.h>

#define EFI_LOADED_IMAGE_PROTOCOL_GUID \
  { \
    0x5B1B31A1, 0x9562, 0x11d2, {0x8E, 0x3F, 0x00, 0xA0, 0xC9, 0x69, 0x72, 0x3B } \
  }

#define EFI_LOADED_IMAGE_DEVICE_PATH_PROTOCOL_GUID \
  { \
    0xbc62157e, 0x3e33, 0x4fec, {0x99, 0x20, 0x2d, 0x3b, 0x36, 0xd7, 0x50, 0xdf } \
  }

///
/// Protocol GUID defined in EFI1.1.
/// 
#define LOADED_IMAGE_PROTOCOL   EFI_LOADED_IMAGE_PROTOCOL_GUID

///
/// EFI_SYSTEM_TABLE & EFI_IMAGE_UNLOAD are defined in EfiApi.h
///
#define EFI_LOADED_IMAGE_PROTOCOL_REVISION  0x1000

///
/// Revision defined in EFI1.1.
/// 
#define EFI_LOADED_IMAGE_INFORMATION_REVISION    EFI_LOADED_IMAGE_PROTOCOL_REVISION

/**  
  @par Protocol Description:
  Can be used on any image handle to obtain information about the loaded image.

  @param Revision
  Defines the revision of the EFI_LOADED_IMAGE_PROTOCOL structure. 
  All future revisions will be backward compatible to the current revision.

  @param ParentHandle
  Parent image's image handle. NULL if the image is loaded directly from 
  the firmware's boot manager. 

  @param SystemTable
  The image's EFI system table pointer. 

  @param DeviceHandle
  The device handle that the EFI Image was loaded from. 

  @param FilePath
  A pointer to the file path portion specific to DeviceHandle 
  that the EFI Image was loaded from. 

  @param Reserved
  Reserved. DO NOT USE.

  @param LoadOptionsSize
  The size in bytes of LoadOptions.

  @param LoadOptions
  A pointer to the image's binary load options.

  @param ImageBase
  The base address at which the image was loaded.

  @param ImageSize
  The size in bytes of the loaded image.

  @param ImageCodeType
  The memory 

  @param ImageDataType
  The memory 

  @param Unload
  Function that unloads the image. 

**/
typedef struct {
  UINT32                    Revision;
  EFI_HANDLE                ParentHandle;
  EFI_SYSTEM_TABLE          *SystemTable;

  //
  // Source location of image
  //
  EFI_HANDLE                DeviceHandle;
  EFI_DEVICE_PATH_PROTOCOL  *FilePath;
  VOID                      *Reserved;

  //
  // Images load options
  //
  UINT32                    LoadOptionsSize;
  VOID                      *LoadOptions;

  //
  // Location of where image was loaded
  //
  VOID                      *ImageBase;
  UINT64                    ImageSize;
  EFI_MEMORY_TYPE           ImageCodeType;
  EFI_MEMORY_TYPE           ImageDataType;

  //
  // If the driver image supports a dynamic unload request
  //
  EFI_IMAGE_UNLOAD          Unload;

} EFI_LOADED_IMAGE_PROTOCOL;

//
// For backward-compatible with EFI1.1.
// 
typedef EFI_LOADED_IMAGE_PROTOCOL EFI_LOADED_IMAGE;

extern EFI_GUID gEfiLoadedImageProtocolGuid;
extern EFI_GUID gEfiLoadedImageDevicePathProtocolGuid;

#endif