MdePkg/Include/Uefi/UefiGpt.h

   1 /** @file
   2   EFI Guid Partition Table Format Definition.
   3
   4   Copyright (c) 2006 - 2007, Intel Corporation
   5   All rights reserved. This program and the accompanying materials
   6   are licensed and made available under the terms and conditions of the BSD License
   7   which accompanies this distribution.  The full text of the license may be found at
   8   http://opensource.org/licenses/bsd-license.php
   9
  10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13 **/
  14
  15 #ifndef __UEFI_GPT_H__
  16 #define __UEFI_GPT_H__
  17
  18 #define PRIMARY_PART_HEADER_LBA 1
  19
  20 //
  21 // EFI Partition Table Signature: "EFI PART"
  22 //
  23 #define EFI_PTAB_HEADER_ID      0x5452415020494645ULL
  24
  25 #pragma pack(1)
  26 //
  27 // GPT Partition Table Header
  28 //
  29 typedef struct {
  30   EFI_TABLE_HEADER  Header;
  31   EFI_LBA           MyLBA;
  32   EFI_LBA           AlternateLBA;
  33   EFI_LBA           FirstUsableLBA;
  34   EFI_LBA           LastUsableLBA;
  35   EFI_GUID          DiskGUID;
  36   EFI_LBA           PartitionEntryLBA;
  37   UINT32            NumberOfPartitionEntries;
  38   UINT32            SizeOfPartitionEntry;
  39   UINT32            PartitionEntryArrayCRC32;
  40 } EFI_PARTITION_TABLE_HEADER;
  41
  42 //
  43 // GPT Partition Entry
  44 //
  45 typedef struct {
  46   EFI_GUID  PartitionTypeGUID;
  47   EFI_GUID  UniquePartitionGUID;
  48   EFI_LBA   StartingLBA;
  49   EFI_LBA   EndingLBA;
  50   UINT64    Attributes;
  51   CHAR16    PartitionName[36];
  52 } EFI_PARTITION_ENTRY;
  53
  54 //
  55 // GPT Partition Entry Status
  56 //
  57 typedef struct {
  58   BOOLEAN OutOfRange;
  59   BOOLEAN Overlap;
  60 } EFI_PARTITION_ENTRY_STATUS;
  61
  62 #pragma pack()
  63 #endif
  64
  65