1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_EFI_PARTITION_H 28 #define _SYS_EFI_PARTITION_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/uuid.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 /* 39 * GUID Partition Table Header 40 */ 41 42 #define EFI_LABEL_SIZE 512 43 #define LEN_EFI_PAD (EFI_LABEL_SIZE - \ 44 ((5 * sizeof (diskaddr_t)) + \ 45 (7 * sizeof (uint_t)) + \ 46 (8 * sizeof (char)) + \ 47 (1 * (sizeof (struct uuid))))) 48 49 #define EFI_SIGNATURE 0x5452415020494645ULL 50 51 /* EFI Guid Partition Table Header -- little endian on-disk format */ 52 typedef struct efi_gpt { 53 uint64_t efi_gpt_Signature; 54 uint_t efi_gpt_Revision; 55 uint_t efi_gpt_HeaderSize; 56 uint_t efi_gpt_HeaderCRC32; 57 uint_t efi_gpt_Reserved1; 58 diskaddr_t efi_gpt_MyLBA; 59 diskaddr_t efi_gpt_AlternateLBA; 60 diskaddr_t efi_gpt_FirstUsableLBA; 61 diskaddr_t efi_gpt_LastUsableLBA; 62 struct uuid efi_gpt_DiskGUID; 63 diskaddr_t efi_gpt_PartitionEntryLBA; 64 uint_t efi_gpt_NumberOfPartitionEntries; 65 uint_t efi_gpt_SizeOfPartitionEntry; 66 uint_t efi_gpt_PartitionEntryArrayCRC32; 67 char efi_gpt_Reserved2[LEN_EFI_PAD]; 68 } efi_gpt_t; 69 70 /* EFI Guid Partition Entry Attributes -- little endian format */ 71 typedef struct efi_gpe_Attrs { 72 uint32_t PartitionAttrs :16, 73 Reserved2 :16; 74 uint32_t Reserved1 :31, 75 RequiredPartition :1; 76 } efi_gpe_Attrs_t; 77 78 /* 79 * 6a96237f-1dd2-11b2-99a6-080020736631 V_UNASSIGNED (not used as such) 80 * 6a82cb45-1dd2-11b2-99a6-080020736631 V_BOOT 81 * 6a85cf4d-1dd2-11b2-99a6-080020736631 V_ROOT 82 * 6a87c46f-1dd2-11b2-99a6-080020736631 V_SWAP 83 * 6a898cc3-1dd2-11b2-99a6-080020736631 V_USR 84 * 6a8b642b-1dd2-11b2-99a6-080020736631 V_BACKUP 85 * 6a8d2ac7-1dd2-11b2-99a6-080020736631 V_STAND (not used) 86 * 6a8ef2e9-1dd2-11b2-99a6-080020736631 V_VAR 87 * 6a90ba39-1dd2-11b2-99a6-080020736631 V_HOME 88 * 6a9283a5-1dd2-11b2-99a6-080020736631 V_ALTSCTR 89 * 6a945a3b-1dd2-11b2-99a6-080020736631 V_CACHE 90 */ 91 92 #define EFI_UNUSED { 0x00000000, 0x0000, 0x0000, 0x00, 0x00, \ 93 { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 } } 94 #define EFI_RESV1 { 0x6a96237f, 0x1dd2, 0x11b2, 0x99, 0xa6, \ 95 { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } 96 #define EFI_BOOT { 0x6a82cb45, 0x1dd2, 0x11b2, 0x99, 0xa6, \ 97 { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } 98 #define EFI_ROOT { 0x6a85cf4d, 0x1dd2, 0x11b2, 0x99, 0xa6, \ 99 { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } 100 #define EFI_SWAP { 0x6a87c46f, 0x1dd2, 0x11b2, 0x99, 0xa6, \ 101 { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } 102 #define EFI_USR { 0x6a898cc3, 0x1dd2, 0x11b2, 0x99, 0xa6, \ 103 { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } 104 #define EFI_BACKUP { 0x6a8b642b, 0x1dd2, 0x11b2, 0x99, 0xa6, \ 105 { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } 106 #define EFI_RESV2 { 0x6a8d2ac7, 0x1dd2, 0x11b2, 0x99, 0xa6, \ 107 { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } 108 #define EFI_VAR { 0x6a8ef2e9, 0x1dd2, 0x11b2, 0x99, 0xa6, \ 109 { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } 110 #define EFI_HOME { 0x6a90ba39, 0x1dd2, 0x11b2, 0x99, 0xa6, \ 111 { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } 112 #define EFI_ALTSCTR { 0x6a9283a5, 0x1dd2, 0x11b2, 0x99, 0xa6, \ 113 { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } 114 #define EFI_RESERVED { 0x6a945a3b, 0x1dd2, 0x11b2, 0x99, 0xa6, \ 115 { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } 116 #define EFI_SYSTEM { 0xC12A7328, 0xF81F, 0x11d2, 0xBA, 0x4B, \ 117 { 0x00, 0xA0, 0xC9, 0x3E, 0xC9, 0x3B } } 118 #define EFI_LEGACY_MBR { 0x024DEE41, 0x33E7, 0x11d3, 0x9D, 0x69, \ 119 { 0x00, 0x08, 0xC7, 0x81, 0xF3, 0x9F } } 120 #define EFI_RESV3 { 0x6a9630d1, 0x1dd2, 0x11b2, 0x99, 0xa6, \ 121 { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } 122 #define EFI_RESV4 { 0x6a980767, 0x1dd2, 0x11b2, 0x99, 0xa6, \ 123 { 0x08, 0x00, 0x20, 0x73, 0x66, 0x31 } } 124 #define EFI_MSFT_RESV { 0xE3C9E316, 0x0B5C, 0x4DB8, 0x81, 0x7D, \ 125 { 0xF9, 0x2D, 0xF0, 0x02, 0x15, 0xAE } } 126 #define EFI_DELL_BASIC { 0xebd0a0a2, 0xb9e5, 0x4433, 0x87, 0xc0, \ 127 { 0x68, 0xb6, 0xb7, 0x26, 0x99, 0xc7 } } 128 #define EFI_DELL_RAID { 0xa19d880f, 0x05fc, 0x4d3b, 0xa0, 0x06, \ 129 { 0x74, 0x3f, 0x0f, 0x84, 0x91, 0x1e } } 130 #define EFI_DELL_SWAP { 0x0657fd6d, 0xa4ab, 0x43c4, 0x84, 0xe5, \ 131 { 0x09, 0x33, 0xc8, 0x4b, 0x4f, 0x4f } } 132 #define EFI_DELL_LVM { 0xe6d6d379, 0xf507, 0x44c2, 0xa2, 0x3c, \ 133 { 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28 } } 134 #define EFI_DELL_RESV { 0x8da63339, 0x0007, 0x60c0, 0xc4, 0x36, \ 135 { 0x08, 0x3a, 0xc8, 0x23, 0x09, 0x08 } } 136 137 #define EFI_MIN_ARRAY_SIZE (16 * 1024) 138 139 #define EFI_PART_NAME_LEN 36 140 141 /* EFI Guid Partition Entry */ 142 typedef struct efi_gpe { 143 struct uuid efi_gpe_PartitionTypeGUID; 144 struct uuid efi_gpe_UniquePartitionGUID; 145 diskaddr_t efi_gpe_StartingLBA; 146 diskaddr_t efi_gpe_EndingLBA; 147 efi_gpe_Attrs_t efi_gpe_Attributes; 148 ushort_t efi_gpe_PartitionName[EFI_PART_NAME_LEN]; 149 } efi_gpe_t; 150 151 /* 152 * passed to the useful (we hope) routines (efi_alloc_and_read and 153 * efi_write) that take this VTOC-like struct. These routines handle 154 * converting this struct into the EFI struct, generate UUIDs and 155 * checksums, and perform any necessary byte-swapping to the on-disk 156 * format. 157 */ 158 /* Solaris library abstraction for EFI partitons */ 159 typedef struct dk_part { 160 diskaddr_t p_start; /* starting LBA */ 161 diskaddr_t p_size; /* size in blocks */ 162 struct uuid p_guid; /* partion type GUID */ 163 ushort_t p_tag; /* converted to part'n type GUID */ 164 ushort_t p_flag; /* attributes */ 165 char p_name[EFI_PART_NAME_LEN]; /* partition name */ 166 struct uuid p_uguid; /* unique partition GUID */ 167 uint_t p_resv[8]; /* future use - set to zero */ 168 } dk_part_t; 169 170 /* Solaris library abstraction for an EFI GPT */ 171 #define EFI_VERSION102 0x00010002 172 #define EFI_VERSION100 0x00010000 173 #define EFI_VERSION_CURRENT EFI_VERSION100 174 typedef struct dk_gpt { 175 uint_t efi_version; /* set to EFI_VERSION_CURRENT */ 176 uint_t efi_nparts; /* number of partitions below */ 177 uint_t efi_part_size; /* size of each partition entry */ 178 /* efi_part_size is unused */ 179 uint_t efi_lbasize; /* size of block in bytes */ 180 diskaddr_t efi_last_lba; /* last block on the disk */ 181 diskaddr_t efi_first_u_lba; /* first block after labels */ 182 diskaddr_t efi_last_u_lba; /* last block before backup labels */ 183 struct uuid efi_disk_uguid; /* unique disk GUID */ 184 uint_t efi_flags; 185 uint_t efi_reserved[15]; /* future use - set to zero */ 186 struct dk_part efi_parts[1]; /* array of partitions */ 187 } dk_gpt_t; 188 189 /* possible values for "efi_flags" */ 190 #define EFI_GPT_PRIMARY_CORRUPT 0x1 /* primary label corrupt */ 191 192 /* the private ioctl between libefi and the driver */ 193 typedef struct dk_efi { 194 diskaddr_t dki_lba; /* starting block */ 195 len_t dki_length; /* length in bytes */ 196 union { 197 efi_gpt_t *_dki_data; 198 uint64_t _dki_data_64; 199 } dki_un; 200 #define dki_data dki_un._dki_data 201 #define dki_data_64 dki_un._dki_data_64 202 } dk_efi_t; 203 204 struct partition64 { 205 struct uuid p_type; 206 uint_t p_partno; 207 uint_t p_resv1; 208 diskaddr_t p_start; 209 diskaddr_t p_size; 210 }; 211 212 /* 213 * Number of EFI partitions 214 */ 215 #define EFI_NUMPAR 9 216 217 #ifndef _KERNEL 218 extern int efi_alloc_and_init(int, uint32_t, struct dk_gpt **); 219 extern int efi_alloc_and_read(int, struct dk_gpt **); 220 extern int efi_write(int, struct dk_gpt *); 221 extern void efi_free(struct dk_gpt *); 222 extern int efi_type(int); 223 extern void efi_err_check(struct dk_gpt *); 224 extern int efi_auto_sense(int fd, struct dk_gpt **); 225 #endif 226 227 #ifdef __cplusplus 228 } 229 #endif 230 231 #endif /* _SYS_EFI_PARTITION_H */ 232