audk/IntelFrameworkPkg/Include/Guid/Capsule.h

/** @file
  Framework Capule related Definition.

Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent

  @par Revision Reference:
  Capsule Spec Version 0.9
**/

#ifndef _CAPSULE_GUID_H__
#define _CAPSULE_GUID_H__

//
// This is the GUID of the capsule header of the image on disk.
//
#define EFI_CAPSULE_GUID \
  { \
    0x3B6686BD, 0x0D76, 0x4030, {0xB7, 0x0E, 0xB5, 0x51, 0x9E, 0x2F, 0xC5, 0xA0 } \
  }

//
// This is the GUID of the configuration results file created by the capsule
// application.
//
#define EFI_CONFIG_FILE_NAME_GUID \
  { \
    0x98B8D59B, 0xE8BA, 0x48EE, {0x98, 0xDD, 0xC2, 0x95, 0x39, 0x2F, 0x1E, 0xDB } \
  }

///
/// Bits in the flags field of the capsule header.
/// This flag is set if the capsule can support setup changes, and cleared if it cannot.
///
#define EFI_CAPSULE_HEADER_FLAG_SETUP 0x00000001

#define CAPSULE_BLOCK_DESCRIPTOR_SIGNATURE  SIGNATURE_32 ('C', 'B', 'D', 'S')

//
// An array of these structs describe the blocks that make up a capsule for
// a capsule update.
//
typedef struct {
  UINT64                Length;     ///< Length of the data block.
  EFI_PHYSICAL_ADDRESS  Data;       ///< Physical address of the data block.
  UINT32                Signature;  ///< CBDS.
  UINT32                CheckSum;   ///< To sum this structure to 0.
} FRAMEWORK_EFI_CAPSULE_BLOCK_DESCRIPTOR;

typedef struct {
  EFI_GUID  OemGuid;
  UINT32    HeaderSize;
  //
  // UINT8                       OemHdrData[];
  //
} EFI_CAPSULE_OEM_HEADER;

typedef struct {
  ///
  /// A defined GUID that indicates the start of a capsule.
  ///
  EFI_GUID  CapsuleGuid;
  ///
  /// The size of the EFI_CAPSULE_HEADER structure.
  ///
  UINT32    HeaderSize;
  ///
  /// A bit-mapped list describing the capsule's attributes.
  /// All undefined bits should be written as zero (0).
  ///
  UINT32    Flags;
  ///
  /// The length in bytes (27,415 for an image containing 27,415 bytes) of the entire image
  /// including all headers. If this value is greater than the size of the data presented in
  /// the capsule body, the image is separated across multiple media. If this
  /// value is less than the size of the data, it is an error.
  ///
  UINT32    CapsuleImageSize;
  ///
  /// A zero-based number that enables a capsule to be split into pieces and then
  /// recombined for easier transfer across media with limited size. The lower the
  /// SequenceNumber, the earlier in the final image that the part of the capsule is to
  /// appear. In capsules that are not split, this value shall be zero.
  ///
  UINT32    SequenceNumber;
  ///
  /// Used to group the various pieces of a split capsule to ensure that they comprise the
  /// same base image. It is valid for this item to be zero, in which case the capsule cannot
  /// be split into components.
  ///
  EFI_GUID  InstanceId;
  ///
  /// The offset in bytes from the beginning of the header to the start of an EFI string that
  /// contains a description of the identity of the subcapsules that make up the capsule. If
  /// the capsule is not split, this value should be zero. The same string should be
  /// presented for all subcapsules that constitute the same capsule.
  ///
  UINT32    OffsetToSplitInformation;
  ///
  /// The offset in bytes from the beginning of the header to the start of the part of the
  /// capsule that is to be transferred to DXE.
  ///
  UINT32    OffsetToCapsuleBody;
  ///
  /// The offset in bytes from the beginning of the header to the start of the OEM-defined
  /// header. This value must be less than OffsetToCapsuleBody.
  ///
  UINT32    OffsetToOemDefinedHeader;
  ///
  /// The offset in bytes from the beginning of the header to the start of human-readable
  /// text that describes the entity that created the capsule. This value must be less than OffsetToCapsuleBody.
  ///
  UINT32    OffsetToAuthorInformation;
  ///
  /// The offset in bytes from the beginning of the header to the start of human-readable
  /// text that describes the revision of the capsule and/or the capsule's contents. This
  /// value must be less than OffsetToCapsuleBody.
  ///
  UINT32    OffsetToRevisionInformation;
  ///
  /// The offset in bytes from the beginning of the header to the start of a one-line (less
  /// than 40 Unicode characters in any language) description of the capsule. It is intended
  /// to be used by OS-present applications when providing a list of capsules from which
  /// the user can choose. This value must be less than OffsetToCapsuleBody.
  ///
  UINT32    OffsetToShortDescription;
  ///
  /// The offset in bytes from the beginning of the header to the start of an EFI string
  ///
  UINT32    OffsetToLongDescription;
  ///
  /// This field is reserved for future use by this specification. For future compatibility,
  /// this field must be set to zero
  ///
  UINT32    OffsetToApplicableDevices;
} FRAMEWORK_EFI_CAPSULE_HEADER;

extern EFI_GUID gEfiCapsuleGuid;
extern EFI_GUID gEfiConfigFileNameGuid;

#endif