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115 lines
3.6 KiB
115 lines
3.6 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/************************************************************ |
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* EFI GUID Partition Table |
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* Per Intel EFI Specification v1.02 |
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* http://developer.intel.com/technology/efi/efi.htm |
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* |
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* By Matt Domsch <[email protected]> Fri Sep 22 22:15:56 CDT 2000 |
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* Copyright 2000,2001 Dell Inc. |
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************************************************************/ |
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#ifndef FS_PART_EFI_H_INCLUDED |
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#define FS_PART_EFI_H_INCLUDED |
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#include <linux/types.h> |
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#include <linux/fs.h> |
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#include <linux/kernel.h> |
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#include <linux/major.h> |
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#include <linux/string.h> |
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#include <linux/efi.h> |
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#include <linux/compiler.h> |
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#define MSDOS_MBR_SIGNATURE 0xaa55 |
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#define EFI_PMBR_OSTYPE_EFI 0xEF |
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#define EFI_PMBR_OSTYPE_EFI_GPT 0xEE |
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#define GPT_MBR_PROTECTIVE 1 |
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#define GPT_MBR_HYBRID 2 |
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#define GPT_HEADER_SIGNATURE 0x5452415020494645ULL |
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#define GPT_HEADER_REVISION_V1 0x00010000 |
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#define GPT_PRIMARY_PARTITION_TABLE_LBA 1 |
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#define PARTITION_SYSTEM_GUID \ |
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EFI_GUID( 0xC12A7328, 0xF81F, 0x11d2, \ |
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0xBA, 0x4B, 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B) |
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#define LEGACY_MBR_PARTITION_GUID \ |
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EFI_GUID( 0x024DEE41, 0x33E7, 0x11d3, \ |
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0x9D, 0x69, 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F) |
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#define PARTITION_MSFT_RESERVED_GUID \ |
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EFI_GUID( 0xE3C9E316, 0x0B5C, 0x4DB8, \ |
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0x81, 0x7D, 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE) |
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#define PARTITION_BASIC_DATA_GUID \ |
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EFI_GUID( 0xEBD0A0A2, 0xB9E5, 0x4433, \ |
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0x87, 0xC0, 0x68, 0xB6, 0xB7, 0x26, 0x99, 0xC7) |
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#define PARTITION_LINUX_RAID_GUID \ |
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EFI_GUID( 0xa19d880f, 0x05fc, 0x4d3b, \ |
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0xa0, 0x06, 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e) |
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#define PARTITION_LINUX_SWAP_GUID \ |
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EFI_GUID( 0x0657fd6d, 0xa4ab, 0x43c4, \ |
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0x84, 0xe5, 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f) |
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#define PARTITION_LINUX_LVM_GUID \ |
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EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \ |
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0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28) |
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typedef struct _gpt_header { |
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__le64 signature; |
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__le32 revision; |
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__le32 header_size; |
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__le32 header_crc32; |
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__le32 reserved1; |
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__le64 my_lba; |
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__le64 alternate_lba; |
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__le64 first_usable_lba; |
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__le64 last_usable_lba; |
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efi_guid_t disk_guid; |
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__le64 partition_entry_lba; |
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__le32 num_partition_entries; |
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__le32 sizeof_partition_entry; |
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__le32 partition_entry_array_crc32; |
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/* The rest of the logical block is reserved by UEFI and must be zero. |
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* EFI standard handles this by: |
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* |
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* uint8_t reserved2[ BlockSize - 92 ]; |
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*/ |
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} __packed gpt_header; |
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typedef struct _gpt_entry_attributes { |
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u64 required_to_function:1; |
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u64 reserved:47; |
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u64 type_guid_specific:16; |
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} __packed gpt_entry_attributes; |
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typedef struct _gpt_entry { |
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efi_guid_t partition_type_guid; |
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efi_guid_t unique_partition_guid; |
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__le64 starting_lba; |
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__le64 ending_lba; |
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gpt_entry_attributes attributes; |
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__le16 partition_name[72/sizeof(__le16)]; |
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} __packed gpt_entry; |
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typedef struct _gpt_mbr_record { |
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u8 boot_indicator; /* unused by EFI, set to 0x80 for bootable */ |
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u8 start_head; /* unused by EFI, pt start in CHS */ |
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u8 start_sector; /* unused by EFI, pt start in CHS */ |
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u8 start_track; |
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u8 os_type; /* EFI and legacy non-EFI OS types */ |
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u8 end_head; /* unused by EFI, pt end in CHS */ |
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u8 end_sector; /* unused by EFI, pt end in CHS */ |
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u8 end_track; /* unused by EFI, pt end in CHS */ |
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__le32 starting_lba; /* used by EFI - start addr of the on disk pt */ |
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__le32 size_in_lba; /* used by EFI - size of pt in LBA */ |
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} __packed gpt_mbr_record; |
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typedef struct _legacy_mbr { |
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u8 boot_code[440]; |
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__le32 unique_mbr_signature; |
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__le16 unknown; |
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gpt_mbr_record partition_record[4]; |
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__le16 signature; |
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} __packed legacy_mbr; |
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#endif
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