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   Module Name:    UefiGpt.h
  14
  15 **/
  16
  17 #ifndef __UEFI_GPT_H__
  18 #define __UEFI_GPT_H__
  19
  20 #define PRIMARY_PART_HEADER_LBA 1
  21
  22 //
  23 // EFI Partition Table Signature: "EFI PART"
  24 //
  25 #define EFI_PTAB_HEADER_ID      0x5452415020494645ULL
  26
  27 #pragma pack(1)
  28 //
  29 // GPT Partition Table Header
  30 //
  31 typedef struct {
  32   EFI_TABLE_HEADER  Header;
  33   EFI_LBA           MyLBA;
  34   EFI_LBA           AlternateLBA;
  35   EFI_LBA           FirstUsableLBA;
  36   EFI_LBA           LastUsableLBA;
  37   EFI_GUID          DiskGUID;
  38   EFI_LBA           PartitionEntryLBA;
  39   UINT32            NumberOfPartitionEntries;
  40   UINT32            SizeOfPartitionEntry;
  41   UINT32            PartitionEntryArrayCRC32;
  42 } EFI_PARTITION_TABLE_HEADER;
  43
  44 //
  45 // GPT Partition Entry
  46 //
  47 typedef struct {
  48   EFI_GUID  PartitionTypeGUID;
  49   EFI_GUID  UniquePartitionGUID;
  50   EFI_LBA   StartingLBA;
  51   EFI_LBA   EndingLBA;
  52   UINT64    Attributes;
  53   CHAR16    PartitionName[36];
  54 } EFI_PARTITION_ENTRY;
  55
  56 //
  57 // GPT Partition Entry Status
  58 //
  59 typedef struct {
  60   BOOLEAN OutOfRange;
  61   BOOLEAN Overlap;
  62 } EFI_PARTITION_ENTRY_STATUS;
  63
  64 #pragma pack()
  65 #endif
  66
  67