1 /* $NetBSD: disklabel_gpt.h,v 1.17 2024/08/19 17:16:02 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2002 Marcel Moolenaar 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD: src/sys/sys/gpt.h,v 1.7 2004/08/02 18:46:52 marcel Exp $ 29 */ 30 31 #ifndef _SYS_DISKLABEL_GPT_H_ 32 #define _SYS_DISKLABEL_GPT_H_ 33 34 /* 35 * Definitions for the EFI GUID Partition Table disk partitioning scheme. 36 * 37 * NOTE: As EFI is an Intel specification, all fields are stored in 38 * little-endian byte-order. 39 */ 40 41 /* 42 * GUID Partition Table Header 43 */ 44 struct gpt_hdr { 45 int8_t hdr_sig[8]; /* identifies GUID Partition Table */ 46 uint32_t hdr_revision; /* GPT specification revision */ 47 uint32_t hdr_size; /* size of GPT Header */ 48 uint32_t hdr_crc_self; /* CRC32 of GPT Header */ 49 uint32_t hdr__rsvd0; /* must be zero */ 50 uint64_t hdr_lba_self; /* LBA that contains this Header */ 51 uint64_t hdr_lba_alt; /* LBA of backup GPT Header */ 52 uint64_t hdr_lba_start; /* first LBA usable for partitions */ 53 uint64_t hdr_lba_end; /* last LBA usable for partitions */ 54 uint8_t hdr_guid[16]; /* GUID to identify the disk */ 55 uint64_t hdr_lba_table; /* first LBA of GPE array */ 56 uint32_t hdr_entries; /* number of entries in GPE array */ 57 uint32_t hdr_entsz; /* size of each GPE */ 58 uint32_t hdr_crc_table; /* CRC32 of GPE array */ 59 /* 60 * The remainder of the block that contains the GPT Header 61 * is reserved by EFI for future GPT Header expansion, and 62 * must be zero. 63 */ 64 }; 65 66 #define GPT_HDR_SIG "EFI PART" 67 #define GPT_HDR_REVISION 0x00010000 /* 1.0 */ 68 69 #define GPT_HDR_BLKNO 1 70 71 #define GPT_HDR_SIZE 0x5c 72 73 /* 74 * GUID Partition Entry 75 */ 76 struct gpt_ent { 77 uint8_t ent_type[16]; /* partition type GUID */ 78 uint8_t ent_guid[16]; /* unique partition GUID */ 79 uint64_t ent_lba_start; /* start of partition */ 80 uint64_t ent_lba_end; /* end of partition */ 81 uint64_t ent_attr; /* partition attributes */ 82 uint16_t ent_name[36]; /* partition name in UCS-2 */ 83 }; 84 85 #define GPT_ENT_ATTR_REQUIRED_PARTITION (1ULL << 0) 86 /* required for platform to function */ 87 #define GPT_ENT_ATTR_NO_BLOCK_IO_PROTOCOL (1ULL << 1) 88 /* UEFI won't recognize file system */ 89 #define GPT_ENT_ATTR_LEGACY_BIOS_BOOTABLE (1ULL << 2) 90 /* legacy BIOS boot partition */ 91 /* The following three entries are from FreeBSD. */ 92 #define GPT_ENT_ATTR_BOOTME (1ULL << 59) 93 /* indicates a bootable partition */ 94 #define GPT_ENT_ATTR_BOOTONCE (1ULL << 58) 95 /* attempt to boot this partition only once */ 96 #define GPT_ENT_ATTR_BOOTFAILED (1ULL << 57) 97 /* partition that was marked bootonce but failed to boot */ 98 99 /* 100 * Partition types defined by the EFI specification: 101 * 102 * GPT_ENT_TYPE_UNUSED Unused Entry 103 * GPT_ENT_TYPE_EFI EFI System Partition 104 * GPT_ENT_TYPE_MBR Partition containing legacy MBR 105 */ 106 #define GPT_ENT_TYPE_UNUSED \ 107 {0x00000000,0x0000,0x0000,0x00,0x00,{0x00,0x00,0x00,0x00,0x00,0x00}} 108 #define GPT_ENT_TYPE_EFI \ 109 {0xc12a7328,0xf81f,0x11d2,0xba,0x4b,{0x00,0xa0,0xc9,0x3e,0xc9,0x3b}} 110 #define GPT_ENT_TYPE_MBR \ 111 {0x024dee41,0x33e7,0x11d3,0x9d,0x69,{0x00,0x08,0xc7,0x81,0xf3,0x9f}} 112 113 /* 114 * Partition types defined by other operating systems. 115 */ 116 #define GPT_ENT_TYPE_NETBSD_SWAP \ 117 {0x49f48d32,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}} 118 #define GPT_ENT_TYPE_NETBSD_FFS \ 119 {0x49f48d5a,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}} 120 #define GPT_ENT_TYPE_NETBSD_LFS \ 121 {0x49f48d82,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}} 122 #define GPT_ENT_TYPE_NETBSD_RAIDFRAME \ 123 {0x49f48daa,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}} 124 #define GPT_ENT_TYPE_NETBSD_CCD \ 125 {0x2db519c4,0xb10f,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}} 126 #define GPT_ENT_TYPE_NETBSD_CGD \ 127 {0x2db519ec,0xb10f,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}} 128 129 #define GPT_ENT_TYPE_FREEBSD \ 130 {0x516e7cb4,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}} 131 #define GPT_ENT_TYPE_FREEBSD_SWAP \ 132 {0x516e7cb5,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}} 133 #define GPT_ENT_TYPE_FREEBSD_UFS \ 134 {0x516e7cb6,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}} 135 #define GPT_ENT_TYPE_FREEBSD_VINUM \ 136 {0x516e7cb8,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}} 137 #define GPT_ENT_TYPE_FREEBSD_ZFS \ 138 {0x516e7cba,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}} 139 140 #define GPT_ENT_TYPE_OPENBSD_DATA \ 141 {0x824CC7A0,0x36A8,0x11E3,0x89,0x0A,{0x95,0x25,0x19,0xAD,0x3F,0x61}} 142 143 /* 144 * The following are unused but documented here to avoid reuse. 145 * 146 * GPT_ENT_TYPE_FREEBSD_UFS2 \ 147 * {0x516e7cb7,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}} 148 */ 149 150 #define GPT_ENT_TYPE_MS_RESERVED \ 151 {0xe3c9e316,0x0b5c,0x4db8,0x81,0x7d,{0xf9,0x2d,0xf0,0x02,0x15,0xae}} 152 #define GPT_ENT_TYPE_MS_BASIC_DATA \ 153 {0xebd0a0a2,0xb9e5,0x4433,0x87,0xc0,{0x68,0xb6,0xb7,0x26,0x99,0xc7}} 154 #define GPT_ENT_TYPE_MS_RECOVERY \ 155 {0xde94bba4,0x06d1,0x4d40,0xa1,0x6a,{0xbf,0xd5,0x01,0x79,0xd6,0xac}} 156 #define GPT_ENT_TYPE_MS_LDM_METADATA \ 157 {0x5808c8aa,0x7e8f,0x42e0,0x85,0xd2,{0xe1,0xe9,0x04,0x34,0xcf,0xb3}} 158 #define GPT_ENT_TYPE_MS_LDM_DATA \ 159 {0xaf9b60a0,0x1431,0x4f62,0xbc,0x68,{0x33,0x11,0x71,0x4a,0x69,0xad}} 160 161 /* 162 * Linux originally used GPT_ENT_TYPE_MS_BASIC_DATA in place of 163 * GPT_ENT_TYPE_LINUX_DATA. 164 */ 165 #define GPT_ENT_TYPE_LINUX_DATA \ 166 {0x0fc63daf,0x8483,0x4772,0x8e,0x79,{0x3d,0x69,0xd8,0x47,0x7d,0xe4}} 167 #define GPT_ENT_TYPE_LINUX_RAID \ 168 {0xa19d880f,0x05fc,0x4d3b,0xa0,0x06,{0x74,0x3f,0x0f,0x84,0x91,0x1e}} 169 #define GPT_ENT_TYPE_LINUX_SWAP \ 170 {0x0657fd6d,0xa4ab,0x43c4,0x84,0xe5,{0x09,0x33,0xc8,0x4b,0x4f,0x4f}} 171 #define GPT_ENT_TYPE_LINUX_LVM \ 172 {0xe6d6d379,0xf507,0x44c2,0xa2,0x3c,{0x23,0x8f,0x2a,0x3d,0xf9,0x28}} 173 174 #define GPT_ENT_TYPE_APPLE_HFS \ 175 {0x48465300,0x0000,0x11aa,0xaa,0x11,{0x00,0x30,0x65,0x43,0xec,0xac}} 176 #define GPT_ENT_TYPE_APPLE_UFS \ 177 {0x55465300,0x0000,0x11aa,0xaa,0x11,{0x00,0x30,0x65,0x43,0xec,0xac}} 178 179 /* 180 * Used by GRUB 2. 181 */ 182 #define GPT_ENT_TYPE_BIOS \ 183 {0x21686148,0x6449,0x6e6f,0x74,0x4e,{0x65,0x65,0x64,0x45,0x46,0x49}} 184 185 /* 186 * VMware types. 187 */ 188 #define GPT_ENT_TYPE_VMWARE_VMKCORE \ 189 {0x9D275380,0x40AD,0x11DB,0xBF,0x97,{0x00,0x0C,0x29,0x11,0xD1,0xB8}} 190 #define GPT_ENT_TYPE_VMWARE_VMFS \ 191 {0xAA31E02A,0x400F,0x11DB,0x95,0x90,{0x00,0x0C,0x29,0x11,0xD1,0xB8}} 192 #define GPT_ENT_TYPE_VMWARE_RESERVED \ 193 {0x9198EFFC,0x31C0,0x11DB,0x8F,0x78,{0x00,0x0C,0x29,0x11,0xD1,0xB8}} 194 195 #endif /* _SYS_DISKLABEL_GPT_H_ */ 196
Indexes created Sat Sep 20 22:09:52 GMT 2025