/* $NetBSD: disklabel_gpt.h,v 1.17 2024/08/19 17:16:02 christos Exp $ */ /* * Copyright (c) 2002 Marcel Moolenaar * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * $FreeBSD: src/sys/sys/gpt.h,v 1.7 2004/08/02 18:46:52 marcel Exp $ */ #ifndef _SYS_DISKLABEL_GPT_H_ #define _SYS_DISKLABEL_GPT_H_ /* * Definitions for the EFI GUID Partition Table disk partitioning scheme. * * NOTE: As EFI is an Intel specification, all fields are stored in * little-endian byte-order. */ /* * GUID Partition Table Header */ struct gpt_hdr { int8_t hdr_sig[8]; /* identifies GUID Partition Table */ uint32_t hdr_revision; /* GPT specification revision */ uint32_t hdr_size; /* size of GPT Header */ uint32_t hdr_crc_self; /* CRC32 of GPT Header */ uint32_t hdr__rsvd0; /* must be zero */ uint64_t hdr_lba_self; /* LBA that contains this Header */ uint64_t hdr_lba_alt; /* LBA of backup GPT Header */ uint64_t hdr_lba_start; /* first LBA usable for partitions */ uint64_t hdr_lba_end; /* last LBA usable for partitions */ uint8_t hdr_guid[16]; /* GUID to identify the disk */ uint64_t hdr_lba_table; /* first LBA of GPE array */ uint32_t hdr_entries; /* number of entries in GPE array */ uint32_t hdr_entsz; /* size of each GPE */ uint32_t hdr_crc_table; /* CRC32 of GPE array */ /* * The remainder of the block that contains the GPT Header * is reserved by EFI for future GPT Header expansion, and * must be zero. */ }; #define GPT_HDR_SIG "EFI PART" #define GPT_HDR_REVISION 0x00010000 /* 1.0 */ #define GPT_HDR_BLKNO 1 #define GPT_HDR_SIZE 0x5c /* * GUID Partition Entry */ struct gpt_ent { uint8_t ent_type[16]; /* partition type GUID */ uint8_t ent_guid[16]; /* unique partition GUID */ uint64_t ent_lba_start; /* start of partition */ uint64_t ent_lba_end; /* end of partition */ uint64_t ent_attr; /* partition attributes */ uint16_t ent_name[36]; /* partition name in UCS-2 */ }; #define GPT_ENT_ATTR_REQUIRED_PARTITION (1ULL << 0) /* required for platform to function */ #define GPT_ENT_ATTR_NO_BLOCK_IO_PROTOCOL (1ULL << 1) /* UEFI won't recognize file system */ #define GPT_ENT_ATTR_LEGACY_BIOS_BOOTABLE (1ULL << 2) /* legacy BIOS boot partition */ /* The following three entries are from FreeBSD. */ #define GPT_ENT_ATTR_BOOTME (1ULL << 59) /* indicates a bootable partition */ #define GPT_ENT_ATTR_BOOTONCE (1ULL << 58) /* attempt to boot this partition only once */ #define GPT_ENT_ATTR_BOOTFAILED (1ULL << 57) /* partition that was marked bootonce but failed to boot */ /* * Partition types defined by the EFI specification: * * GPT_ENT_TYPE_UNUSED Unused Entry * GPT_ENT_TYPE_EFI EFI System Partition * GPT_ENT_TYPE_MBR Partition containing legacy MBR */ #define GPT_ENT_TYPE_UNUSED \ {0x00000000,0x0000,0x0000,0x00,0x00,{0x00,0x00,0x00,0x00,0x00,0x00}} #define GPT_ENT_TYPE_EFI \ {0xc12a7328,0xf81f,0x11d2,0xba,0x4b,{0x00,0xa0,0xc9,0x3e,0xc9,0x3b}} #define GPT_ENT_TYPE_MBR \ {0x024dee41,0x33e7,0x11d3,0x9d,0x69,{0x00,0x08,0xc7,0x81,0xf3,0x9f}} /* * Partition types defined by other operating systems. */ #define GPT_ENT_TYPE_NETBSD_SWAP \ {0x49f48d32,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}} #define GPT_ENT_TYPE_NETBSD_FFS \ {0x49f48d5a,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}} #define GPT_ENT_TYPE_NETBSD_LFS \ {0x49f48d82,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}} #define GPT_ENT_TYPE_NETBSD_RAIDFRAME \ {0x49f48daa,0xb10e,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}} #define GPT_ENT_TYPE_NETBSD_CCD \ {0x2db519c4,0xb10f,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}} #define GPT_ENT_TYPE_NETBSD_CGD \ {0x2db519ec,0xb10f,0x11dc,0xb9,0x9b,{0x00,0x19,0xd1,0x87,0x96,0x48}} #define GPT_ENT_TYPE_FREEBSD \ {0x516e7cb4,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}} #define GPT_ENT_TYPE_FREEBSD_SWAP \ {0x516e7cb5,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}} #define GPT_ENT_TYPE_FREEBSD_UFS \ {0x516e7cb6,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}} #define GPT_ENT_TYPE_FREEBSD_VINUM \ {0x516e7cb8,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}} #define GPT_ENT_TYPE_FREEBSD_ZFS \ {0x516e7cba,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}} #define GPT_ENT_TYPE_OPENBSD_DATA \ {0x824CC7A0,0x36A8,0x11E3,0x89,0x0A,{0x95,0x25,0x19,0xAD,0x3F,0x61}} /* * The following are unused but documented here to avoid reuse. * * GPT_ENT_TYPE_FREEBSD_UFS2 \ * {0x516e7cb7,0x6ecf,0x11d6,0x8f,0xf8,{0x00,0x02,0x2d,0x09,0x71,0x2b}} */ #define GPT_ENT_TYPE_MS_RESERVED \ {0xe3c9e316,0x0b5c,0x4db8,0x81,0x7d,{0xf9,0x2d,0xf0,0x02,0x15,0xae}} #define GPT_ENT_TYPE_MS_BASIC_DATA \ {0xebd0a0a2,0xb9e5,0x4433,0x87,0xc0,{0x68,0xb6,0xb7,0x26,0x99,0xc7}} #define GPT_ENT_TYPE_MS_RECOVERY \ {0xde94bba4,0x06d1,0x4d40,0xa1,0x6a,{0xbf,0xd5,0x01,0x79,0xd6,0xac}} #define GPT_ENT_TYPE_MS_LDM_METADATA \ {0x5808c8aa,0x7e8f,0x42e0,0x85,0xd2,{0xe1,0xe9,0x04,0x34,0xcf,0xb3}} #define GPT_ENT_TYPE_MS_LDM_DATA \ {0xaf9b60a0,0x1431,0x4f62,0xbc,0x68,{0x33,0x11,0x71,0x4a,0x69,0xad}} /* * Linux originally used GPT_ENT_TYPE_MS_BASIC_DATA in place of * GPT_ENT_TYPE_LINUX_DATA. */ #define GPT_ENT_TYPE_LINUX_DATA \ {0x0fc63daf,0x8483,0x4772,0x8e,0x79,{0x3d,0x69,0xd8,0x47,0x7d,0xe4}} #define GPT_ENT_TYPE_LINUX_RAID \ {0xa19d880f,0x05fc,0x4d3b,0xa0,0x06,{0x74,0x3f,0x0f,0x84,0x91,0x1e}} #define GPT_ENT_TYPE_LINUX_SWAP \ {0x0657fd6d,0xa4ab,0x43c4,0x84,0xe5,{0x09,0x33,0xc8,0x4b,0x4f,0x4f}} #define GPT_ENT_TYPE_LINUX_LVM \ {0xe6d6d379,0xf507,0x44c2,0xa2,0x3c,{0x23,0x8f,0x2a,0x3d,0xf9,0x28}} #define GPT_ENT_TYPE_APPLE_HFS \ {0x48465300,0x0000,0x11aa,0xaa,0x11,{0x00,0x30,0x65,0x43,0xec,0xac}} #define GPT_ENT_TYPE_APPLE_UFS \ {0x55465300,0x0000,0x11aa,0xaa,0x11,{0x00,0x30,0x65,0x43,0xec,0xac}} /* * Used by GRUB 2. */ #define GPT_ENT_TYPE_BIOS \ {0x21686148,0x6449,0x6e6f,0x74,0x4e,{0x65,0x65,0x64,0x45,0x46,0x49}} /* * VMware types. */ #define GPT_ENT_TYPE_VMWARE_VMKCORE \ {0x9D275380,0x40AD,0x11DB,0xBF,0x97,{0x00,0x0C,0x29,0x11,0xD1,0xB8}} #define GPT_ENT_TYPE_VMWARE_VMFS \ {0xAA31E02A,0x400F,0x11DB,0x95,0x90,{0x00,0x0C,0x29,0x11,0xD1,0xB8}} #define GPT_ENT_TYPE_VMWARE_RESERVED \ {0x9198EFFC,0x31C0,0x11DB,0x8F,0x78,{0x00,0x0C,0x29,0x11,0xD1,0xB8}} #endif /* _SYS_DISKLABEL_GPT_H_ */