/** @file | |
EFI Guid Partition Table Format Definition. | |
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 __UEFI_GPT_H__ | |
#define __UEFI_GPT_H__ | |
/// | |
/// The primary GUID Partition Table Header must be | |
/// located in LBA 1 (i.e., the second logical block). | |
/// | |
#define PRIMARY_PART_HEADER_LBA 1 | |
/// | |
/// EFI Partition Table Signature: "EFI PART" | |
/// | |
#define EFI_PTAB_HEADER_ID SIGNATURE_64 ('E','F','I',' ','P','A','R','T') | |
#pragma pack(1) | |
/// | |
/// GPT Partition Table Header | |
/// | |
typedef struct { | |
/// | |
/// The table header for the GPT partition Table. | |
/// This header contains EFI_PTAB_HEADER_ID | |
/// | |
EFI_TABLE_HEADER Header; | |
/// | |
/// The LBA that contains this data structure. | |
/// | |
EFI_LBA MyLBA; | |
/// | |
/// LBA address of the alternate GUID Partition Table Header. | |
/// | |
EFI_LBA AlternateLBA; | |
/// | |
/// The first usable logical block that may be used | |
/// by a partition described by a GUID Partition Entry. | |
/// | |
EFI_LBA FirstUsableLBA; | |
/// | |
/// The last usable logical block that may be used | |
/// by a partition described by a GUID Partition Entry. | |
/// | |
EFI_LBA LastUsableLBA; | |
/// | |
/// GUID that can be used to uniquely identify the disk. | |
/// | |
EFI_GUID DiskGUID; | |
/// | |
/// The starting LBA of the GUID Partition Entry array. | |
/// | |
EFI_LBA PartitionEntryLBA; | |
/// | |
/// The number of Partition Entries in the GUID Partition Entry array. | |
/// | |
UINT32 NumberOfPartitionEntries; | |
/// | |
/// The size, in bytes, of each the GUID Partition | |
/// Entry structures in the GUID Partition Entry | |
/// array. Must be a multiple of 8. | |
/// | |
UINT32 SizeOfPartitionEntry; | |
/// | |
/// The CRC32 of the GUID Partition Entry array. | |
/// Starts at PartitionEntryLBA and is | |
/// computed over a byte length of | |
/// NumberOfPartitionEntries * SizeOfPartitionEntry. | |
/// | |
UINT32 PartitionEntryArrayCRC32; | |
} EFI_PARTITION_TABLE_HEADER; | |
/// | |
/// GPT Partition Entry | |
/// | |
typedef struct { | |
/// | |
/// Unique ID that defines the purpose and type of this Partition. A value of | |
/// zero defines that this partition entry is not being used. | |
/// | |
EFI_GUID PartitionTypeGUID; | |
/// | |
/// GUID that is unique for every partition entry. Every partition ever | |
/// created will have a unique GUID. | |
/// This GUID must be assigned when the GUID Partition Entry is created. | |
/// | |
EFI_GUID UniquePartitionGUID; | |
/// | |
/// Starting LBA of the partition defined by this entry | |
/// | |
EFI_LBA StartingLBA; | |
/// | |
/// Ending LBA of the partition defined by this entry. | |
/// | |
EFI_LBA EndingLBA; | |
/// | |
/// Attribute bits, all bits reserved by UEFI | |
/// Bit 0 Required for the platform to function. | |
/// Bits 1-47 Undefined and must be zero. | |
/// Bits 48-63 Reserved for GUID specific use. | |
/// | |
UINT64 Attributes; | |
/// | |
/// Unicode string. | |
/// | |
CHAR16 PartitionName[36]; | |
} EFI_PARTITION_ENTRY; | |
#pragma pack() | |
#endif | |