MdePkg/Include/IndustryStandard/EfiGpt.h

   1 /** @file
   2   EFI Guid Partition Table Format Definition.
   3
   4 Copyright (c) 2006, 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 _EFIGPT_H_
  16 #define _EFIGPT_H_
  17
  18
  19 #define PRIMARY_PART_HEADER_LBA 1
  20
  21 #define EFI_PTAB_HEADER_ID      "EFI PART"
  22
  23 #pragma pack(1)
  24 //
  25 // GPT Partition Table Header
  26 //
  27 typedef struct {
  28   EFI_TABLE_HEADER  Header;
  29   EFI_LBA           MyLBA;
  30   EFI_LBA           AlternateLBA;
  31   EFI_LBA           FirstUsableLBA;
  32   EFI_LBA           LastUsableLBA;
  33   EFI_GUID          DiskGUID;
  34   EFI_LBA           PartitionEntryLBA;
  35   UINT32            NumberOfPartitionEntries;
  36   UINT32            SizeOfPartitionEntry;
  37   UINT32            PartitionEntryArrayCRC32;
  38 } EFI_PARTITION_TABLE_HEADER;
  39
  40 //
  41 // GPT Partition Entry
  42 //
  43 typedef struct {
  44   EFI_GUID  PartitionTypeGUID;
  45   EFI_GUID  UniquePartitionGUID;
  46   EFI_LBA   StartingLBA;
  47   EFI_LBA   EndingLBA;
  48   UINT64    Attributes;
  49   CHAR16    PartitionName[36];
  50 } EFI_PARTITION_ENTRY;
  51
  52 //
  53 // GPT Partition Entry Status
  54 //
  55 typedef struct {
  56   BOOLEAN OutOfRange;
  57   BOOLEAN Overlap;
  58 } EFI_PARTITION_ENTRY_STATUS;
  59
  60 #pragma pack()
  61
  62 #endif