Blame view
disk/part_efi.c
31.9 KB
07f3d789b Add support for C... |
1 2 3 4 |
/* * Copyright (C) 2008 RuggedCom, Inc. * Richard Retanubun <RichardRetanubun@RuggedCom.com> * |
1a4596601 Add GPL-2.0+ SPDX... |
5 |
* SPDX-License-Identifier: GPL-2.0+ |
07f3d789b Add support for C... |
6 7 8 |
*/ /* |
e04350d29 disk: part_efi: c... |
9 10 11 |
* NOTE: * when CONFIG_SYS_64BIT_LBA is not defined, lbaint_t is 32 bits; this * limits the maximum size of addressable storage to < 2 Terra Bytes |
07f3d789b Add support for C... |
12 |
*/ |
8faefadb7 disk: fix unalign... |
13 |
#include <asm/unaligned.h> |
07f3d789b Add support for C... |
14 15 |
#include <common.h> #include <command.h> |
02e43537b part_efi: support... |
16 |
#include <fdtdec.h> |
07f3d789b Add support for C... |
17 |
#include <ide.h> |
e48f3741c sandbox: Fix warn... |
18 |
#include <inttypes.h> |
07f3d789b Add support for C... |
19 |
#include <malloc.h> |
cf92e05c0 Move ALLOC_CACHE_... |
20 |
#include <memalign.h> |
fae2bf22a gpt: The leXX_to_... |
21 |
#include <part_efi.h> |
02e43537b part_efi: support... |
22 |
#include <linux/compiler.h> |
6eecc0307 part: show efi pa... |
23 |
#include <linux/ctype.h> |
07f3d789b Add support for C... |
24 |
|
40684ddb8 gpt: Support for ... |
25 |
DECLARE_GLOBAL_DATA_PTR; |
1811a928c Move most CONFIG_... |
26 |
#ifdef CONFIG_HAVE_BLOCK_DEVICE |
07f3d789b Add support for C... |
27 28 29 30 31 32 33 |
/** * efi_crc32() - EFI version of crc32 function * @buf: buffer to calculate crc32 of * @len - length of buf * * Description: Returns EFI-style CRC32 value for @buf */ |
fae2bf22a gpt: The leXX_to_... |
34 |
static inline u32 efi_crc32(const void *buf, u32 len) |
07f3d789b Add support for C... |
35 36 37 38 39 40 41 42 43 44 |
{ return crc32(0, buf, len); } /* * Private function prototypes */ static int pmbr_part_valid(struct partition *part); static int is_pmbr_valid(legacy_mbr * mbr); |
4101f6879 dm: Drop the bloc... |
45 |
static int is_gpt_valid(struct blk_desc *dev_desc, u64 lba, |
e04350d29 disk: part_efi: c... |
46 |
gpt_header *pgpt_head, gpt_entry **pgpt_pte); |
4101f6879 dm: Drop the bloc... |
47 48 |
static gpt_entry *alloc_read_gpt_entries(struct blk_desc *dev_desc, gpt_header *pgpt_head); |
07f3d789b Add support for C... |
49 |
static int is_pte_valid(gpt_entry * pte); |
6eecc0307 part: show efi pa... |
50 51 52 53 54 55 56 57 58 59 60 61 62 |
static char *print_efiname(gpt_entry *pte) { static char name[PARTNAME_SZ + 1]; int i; for (i = 0; i < PARTNAME_SZ; i++) { u8 c; c = pte->partition_name[i] & 0xff; c = (c && !isprint(c)) ? '.' : c; name[i] = c; } name[PARTNAME_SZ] = 0; return name; } |
b4414f4a4 disk: part_efi: s... |
63 64 65 66 67 68 69 70 |
static efi_guid_t system_guid = PARTITION_SYSTEM_GUID; static inline int is_bootable(gpt_entry *p) { return p->attributes.fields.legacy_bios_bootable || !memcmp(&(p->partition_type_guid), &system_guid, sizeof(efi_guid_t)); } |
e1f6b0a02 disk: part_efi: m... |
71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 |
static int validate_gpt_header(gpt_header *gpt_h, lbaint_t lba, lbaint_t lastlba) { uint32_t crc32_backup = 0; uint32_t calc_crc32; /* Check the GPT header signature */ if (le64_to_cpu(gpt_h->signature) != GPT_HEADER_SIGNATURE) { printf("%s signature is wrong: 0x%llX != 0x%llX ", "GUID Partition Table Header", le64_to_cpu(gpt_h->signature), GPT_HEADER_SIGNATURE); return -1; } /* Check the GUID Partition Table CRC */ memcpy(&crc32_backup, &gpt_h->header_crc32, sizeof(crc32_backup)); memset(&gpt_h->header_crc32, 0, sizeof(gpt_h->header_crc32)); calc_crc32 = efi_crc32((const unsigned char *)gpt_h, le32_to_cpu(gpt_h->header_size)); memcpy(&gpt_h->header_crc32, &crc32_backup, sizeof(crc32_backup)); if (calc_crc32 != le32_to_cpu(crc32_backup)) { printf("%s CRC is wrong: 0x%x != 0x%x ", "GUID Partition Table Header", le32_to_cpu(crc32_backup), calc_crc32); return -1; } /* * Check that the my_lba entry points to the LBA that contains the GPT */ if (le64_to_cpu(gpt_h->my_lba) != lba) { printf("GPT: my_lba incorrect: %llX != " LBAF " ", le64_to_cpu(gpt_h->my_lba), lba); return -1; } /* * Check that the first_usable_lba and that the last_usable_lba are * within the disk. */ if (le64_to_cpu(gpt_h->first_usable_lba) > lastlba) { printf("GPT: first_usable_lba incorrect: %llX > " LBAF " ", le64_to_cpu(gpt_h->first_usable_lba), lastlba); return -1; } if (le64_to_cpu(gpt_h->last_usable_lba) > lastlba) { printf("GPT: last_usable_lba incorrect: %llX > " LBAF " ", le64_to_cpu(gpt_h->last_usable_lba), lastlba); return -1; } debug("GPT: first_usable_lba: %llX last_usable_lba: %llX last lba: " LBAF " ", le64_to_cpu(gpt_h->first_usable_lba), le64_to_cpu(gpt_h->last_usable_lba), lastlba); return 0; } |
2c840c82b MLK-18591-3 andro... |
139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 |
static void prepare_last_lba_gpt_header(struct blk_desc *dev_desc, gpt_header *gpt_h) { uint32_t calc_crc32; uint64_t val; /* recalculate the values for the Backup GPT Header */ val = le64_to_cpu(gpt_h->my_lba); gpt_h->my_lba = cpu_to_le64(dev_desc->lba - 1);; gpt_h->alternate_lba = cpu_to_le64(val); gpt_h->last_usable_lba = cpu_to_le64(dev_desc->lba - 34); gpt_h->partition_entry_lba = cpu_to_le64(le64_to_cpu(gpt_h->last_usable_lba) + 1); gpt_h->header_crc32 = 0; calc_crc32 = efi_crc32((const unsigned char *)gpt_h, le32_to_cpu(gpt_h->header_size)); gpt_h->header_crc32 = cpu_to_le32(calc_crc32); } |
e1f6b0a02 disk: part_efi: m... |
157 158 159 160 161 162 163 164 165 166 |
static int validate_gpt_entries(gpt_header *gpt_h, gpt_entry *gpt_e) { uint32_t calc_crc32; /* Check the GUID Partition Table Entry Array CRC */ calc_crc32 = efi_crc32((const unsigned char *)gpt_e, le32_to_cpu(gpt_h->num_partition_entries) * le32_to_cpu(gpt_h->sizeof_partition_entry)); if (calc_crc32 != le32_to_cpu(gpt_h->partition_entry_array_crc32)) { |
2c840c82b MLK-18591-3 andro... |
167 168 |
debug("%s: 0x%x != 0x%x ", |
e1f6b0a02 disk: part_efi: m... |
169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 |
"GUID Partition Table Entry Array CRC is wrong", le32_to_cpu(gpt_h->partition_entry_array_crc32), calc_crc32); return -1; } return 0; } static void prepare_backup_gpt_header(gpt_header *gpt_h) { uint32_t calc_crc32; uint64_t val; /* recalculate the values for the Backup GPT Header */ val = le64_to_cpu(gpt_h->my_lba); gpt_h->my_lba = gpt_h->alternate_lba; gpt_h->alternate_lba = cpu_to_le64(val); |
0ff7e585d fastboot: handle ... |
187 188 |
gpt_h->partition_entry_lba = cpu_to_le64(le64_to_cpu(gpt_h->last_usable_lba) + 1); |
e1f6b0a02 disk: part_efi: m... |
189 190 191 192 193 194 |
gpt_h->header_crc32 = 0; calc_crc32 = efi_crc32((const unsigned char *)gpt_h, le32_to_cpu(gpt_h->header_size)); gpt_h->header_crc32 = cpu_to_le32(calc_crc32); } |
bd42a9426 disk: convert CON... |
195 |
#if CONFIG_IS_ENABLED(EFI_PARTITION) |
07f3d789b Add support for C... |
196 197 198 |
/* * Public Functions (include/part.h) */ |
73d6d18b7 GPT: add accessor... |
199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 |
/* * UUID is displayed as 32 hexadecimal digits, in 5 groups, * separated by hyphens, in the form 8-4-4-4-12 for a total of 36 characters */ int get_disk_guid(struct blk_desc * dev_desc, char *guid) { ALLOC_CACHE_ALIGN_BUFFER_PAD(gpt_header, gpt_head, 1, dev_desc->blksz); gpt_entry *gpt_pte = NULL; unsigned char *guid_bin; /* This function validates AND fills in the GPT header and PTE */ if (is_gpt_valid(dev_desc, GPT_PRIMARY_PARTITION_TABLE_LBA, gpt_head, &gpt_pte) != 1) { printf("%s: *** ERROR: Invalid GPT *** ", __func__); if (is_gpt_valid(dev_desc, dev_desc->lba - 1, gpt_head, &gpt_pte) != 1) { printf("%s: *** ERROR: Invalid Backup GPT *** ", __func__); return -EINVAL; } else { printf("%s: *** Using Backup GPT *** ", __func__); } } guid_bin = gpt_head->disk_guid.b; uuid_bin_to_str(guid_bin, guid, UUID_STR_FORMAT_GUID); return 0; } |
084bf4c24 part: Rename test... |
232 |
void part_print_efi(struct blk_desc *dev_desc) |
07f3d789b Add support for C... |
233 |
{ |
ae1768a72 disk/gpt: Fix GPT... |
234 |
ALLOC_CACHE_ALIGN_BUFFER_PAD(gpt_header, gpt_head, 1, dev_desc->blksz); |
deb5ca802 disk: part_efi: f... |
235 |
gpt_entry *gpt_pte = NULL; |
07f3d789b Add support for C... |
236 |
int i = 0; |
db9b6200a EFI: replace numb... |
237 |
char uuid[UUID_STR_LEN + 1]; |
a96a0e615 part_efi: move uu... |
238 |
unsigned char *uuid_bin; |
07f3d789b Add support for C... |
239 |
|
07f3d789b Add support for C... |
240 241 |
/* This function validates AND fills in the GPT header and PTE */ if (is_gpt_valid(dev_desc, GPT_PRIMARY_PARTITION_TABLE_LBA, |
4715a8113 disk: part_efi: f... |
242 |
gpt_head, &gpt_pte) != 1) { |
df70b1c2e cosmetic: Replace... |
243 244 |
printf("%s: *** ERROR: Invalid GPT *** ", __func__); |
ae95fad5a disk: part_efi: a... |
245 246 247 248 249 250 251 252 253 254 255 |
if (is_gpt_valid(dev_desc, (dev_desc->lba - 1), gpt_head, &gpt_pte) != 1) { printf("%s: *** ERROR: Invalid Backup GPT *** ", __func__); return; } else { printf("%s: *** Using Backup GPT *** ", __func__); } |
07f3d789b Add support for C... |
256 |
} |
deb5ca802 disk: part_efi: f... |
257 258 |
debug("%s: gpt-entry at %p ", __func__, gpt_pte); |
07f3d789b Add support for C... |
259 |
|
788a8c1fc disk: part_efi: r... |
260 261 |
printf("Part\tStart LBA\tEnd LBA\t\tName "); |
13bf2f55d disk: part_efi: p... |
262 263 |
printf("\tAttributes "); |
d718ded05 lib: uuid: code r... |
264 265 266 267 |
printf("\tType GUID "); printf("\tPartition GUID "); |
f07cd2c4c disk: part_efi: p... |
268 |
|
fae2bf22a gpt: The leXX_to_... |
269 |
for (i = 0; i < le32_to_cpu(gpt_head->num_partition_entries); i++) { |
38a3021ed disk: part_efi: r... |
270 271 272 |
/* Stop at the first non valid PTE */ if (!is_pte_valid(&gpt_pte[i])) break; |
788a8c1fc disk: part_efi: r... |
273 274 |
printf("%3d\t0x%08llx\t0x%08llx\t\"%s\" ", (i + 1), |
fae2bf22a gpt: The leXX_to_... |
275 276 |
le64_to_cpu(gpt_pte[i].starting_lba), le64_to_cpu(gpt_pte[i].ending_lba), |
788a8c1fc disk: part_efi: r... |
277 |
print_efiname(&gpt_pte[i])); |
13bf2f55d disk: part_efi: p... |
278 279 |
printf("\tattrs:\t0x%016llx ", gpt_pte[i].attributes.raw); |
a96a0e615 part_efi: move uu... |
280 |
uuid_bin = (unsigned char *)gpt_pte[i].partition_type_guid.b; |
d718ded05 lib: uuid: code r... |
281 |
uuid_bin_to_str(uuid_bin, uuid, UUID_STR_FORMAT_GUID); |
f07cd2c4c disk: part_efi: p... |
282 283 |
printf("\ttype:\t%s ", uuid); |
bcb41dcae uuid: add selecti... |
284 285 286 287 288 |
#ifdef CONFIG_PARTITION_TYPE_GUID if (!uuid_guid_get_str(uuid_bin, uuid)) printf("\ttype:\t%s ", uuid); #endif |
a96a0e615 part_efi: move uu... |
289 |
uuid_bin = (unsigned char *)gpt_pte[i].unique_partition_guid.b; |
d718ded05 lib: uuid: code r... |
290 291 292 |
uuid_bin_to_str(uuid_bin, uuid, UUID_STR_FORMAT_GUID); printf("\tguid:\t%s ", uuid); |
07f3d789b Add support for C... |
293 |
} |
dbcf1e3cc [iot] Support dua... |
294 |
#if !defined(CONFIG_DUAL_BOOTLOADER) || !defined(CONFIG_SPL_BUILD) |
07f3d789b Add support for C... |
295 |
/* Remember to free pte */ |
deb5ca802 disk: part_efi: f... |
296 |
free(gpt_pte); |
dbcf1e3cc [iot] Support dua... |
297 |
#endif |
07f3d789b Add support for C... |
298 299 |
return; } |
3e8bd4695 dm: part: Rename ... |
300 301 |
int part_get_info_efi(struct blk_desc *dev_desc, int part, disk_partition_t *info) |
07f3d789b Add support for C... |
302 |
{ |
ae1768a72 disk/gpt: Fix GPT... |
303 |
ALLOC_CACHE_ALIGN_BUFFER_PAD(gpt_header, gpt_head, 1, dev_desc->blksz); |
deb5ca802 disk: part_efi: f... |
304 |
gpt_entry *gpt_pte = NULL; |
07f3d789b Add support for C... |
305 306 |
/* "part" argument must be at least 1 */ |
4708a07c7 part_efi: Drop NU... |
307 |
if (part < 1) { |
df70b1c2e cosmetic: Replace... |
308 309 |
printf("%s: Invalid Argument(s) ", __func__); |
07f3d789b Add support for C... |
310 311 312 313 314 |
return -1; } /* This function validates AND fills in the GPT header and PTE */ if (is_gpt_valid(dev_desc, GPT_PRIMARY_PARTITION_TABLE_LBA, |
4715a8113 disk: part_efi: f... |
315 |
gpt_head, &gpt_pte) != 1) { |
2c840c82b MLK-18591-3 andro... |
316 317 |
debug("%s: *** ERROR: Invalid GPT *** ", __func__); |
ae95fad5a disk: part_efi: a... |
318 319 320 321 322 323 324 |
if (is_gpt_valid(dev_desc, (dev_desc->lba - 1), gpt_head, &gpt_pte) != 1) { printf("%s: *** ERROR: Invalid Backup GPT *** ", __func__); return -1; } else { |
2c840c82b MLK-18591-3 andro... |
325 326 |
debug("%s: *** Using Backup GPT *** ", |
ae95fad5a disk: part_efi: a... |
327 328 |
__func__); } |
07f3d789b Add support for C... |
329 |
} |
fae2bf22a gpt: The leXX_to_... |
330 |
if (part > le32_to_cpu(gpt_head->num_partition_entries) || |
c04d68c69 disk: part_efi: r... |
331 |
!is_pte_valid(&gpt_pte[part - 1])) { |
6d2ee5a33 part_efi: make su... |
332 333 |
debug("%s: *** ERROR: Invalid partition number %d *** ", |
c04d68c69 disk: part_efi: r... |
334 |
__func__, part); |
dbcf1e3cc [iot] Support dua... |
335 |
#if !defined(CONFIG_DUAL_BOOTLOADER) || !defined(CONFIG_SPL_BUILD) |
6d2ee5a33 part_efi: make su... |
336 |
free(gpt_pte); |
dbcf1e3cc [iot] Support dua... |
337 |
#endif |
c04d68c69 disk: part_efi: r... |
338 339 |
return -1; } |
e04350d29 disk: part_efi: c... |
340 341 |
/* The 'lbaint_t' casting may limit the maximum disk size to 2 TB */ info->start = (lbaint_t)le64_to_cpu(gpt_pte[part - 1].starting_lba); |
509708397 part_efi: Fix par... |
342 |
/* The ending LBA is inclusive, to calculate size, add 1 to it */ |
e04350d29 disk: part_efi: c... |
343 |
info->size = (lbaint_t)le64_to_cpu(gpt_pte[part - 1].ending_lba) + 1 |
509708397 part_efi: Fix par... |
344 |
- info->start; |
ae1768a72 disk/gpt: Fix GPT... |
345 |
info->blksz = dev_desc->blksz; |
07f3d789b Add support for C... |
346 |
|
6eecc0307 part: show efi pa... |
347 |
sprintf((char *)info->name, "%s", |
deb5ca802 disk: part_efi: f... |
348 |
print_efiname(&gpt_pte[part - 1])); |
192bc6948 Fix GCC format-se... |
349 |
strcpy((char *)info->type, "U-Boot"); |
b4414f4a4 disk: part_efi: s... |
350 |
info->bootable = is_bootable(&gpt_pte[part - 1]); |
b331cd620 cmd, disk: conver... |
351 |
#if CONFIG_IS_ENABLED(PARTITION_UUIDS) |
d718ded05 lib: uuid: code r... |
352 353 |
uuid_bin_to_str(gpt_pte[part - 1].unique_partition_guid.b, info->uuid, UUID_STR_FORMAT_GUID); |
894bfbbfb disk: part_efi: p... |
354 |
#endif |
7561b258a gpt: add optional... |
355 356 357 358 |
#ifdef CONFIG_PARTITION_TYPE_GUID uuid_bin_to_str(gpt_pte[part - 1].partition_type_guid.b, info->type_guid, UUID_STR_FORMAT_GUID); #endif |
07f3d789b Add support for C... |
359 |
|
60bf94169 disk: part_efi: a... |
360 361 |
debug("%s: start 0x" LBAF ", size 0x" LBAF ", name %s ", __func__, |
04735e9c5 Fix ext2/ext4 fil... |
362 |
info->start, info->size, info->name); |
07f3d789b Add support for C... |
363 |
|
dbcf1e3cc [iot] Support dua... |
364 365 366 367 368 369 |
#if !defined(CONFIG_DUAL_BOOTLOADER) || !defined(CONFIG_SPL_BUILD) /* Heap memory is very limited in SPL, if the dual bootloader is * enabled, just load pte to dram instead of oc-ram. In such case, * this part of memory shouldn't be freed. But in common routine, * don't forget to free the memory after use. */ |
deb5ca802 disk: part_efi: f... |
370 |
free(gpt_pte); |
dbcf1e3cc [iot] Support dua... |
371 |
#endif |
07f3d789b Add support for C... |
372 373 |
return 0; } |
084bf4c24 part: Rename test... |
374 |
static int part_test_efi(struct blk_desc *dev_desc) |
07f3d789b Add support for C... |
375 |
{ |
ae1768a72 disk/gpt: Fix GPT... |
376 |
ALLOC_CACHE_ALIGN_BUFFER_PAD(legacy_mbr, legacymbr, 1, dev_desc->blksz); |
07f3d789b Add support for C... |
377 378 |
/* Read legacy MBR from block 0 and validate it */ |
2a981dc2c dm: block: Adjust... |
379 |
if ((blk_dread(dev_desc, 0, 1, (ulong *)legacymbr) != 1) |
f75dd584c part_efi: dcache:... |
380 |
|| (is_pmbr_valid(legacymbr) != 1)) { |
07f3d789b Add support for C... |
381 382 383 384 |
return -1; } return 0; } |
40684ddb8 gpt: Support for ... |
385 386 387 388 389 390 |
/** * set_protective_mbr(): Set the EFI protective MBR * @param dev_desc - block device descriptor * * @return - zero on success, otherwise error */ |
4101f6879 dm: Drop the bloc... |
391 |
static int set_protective_mbr(struct blk_desc *dev_desc) |
40684ddb8 gpt: Support for ... |
392 |
{ |
40684ddb8 gpt: Support for ... |
393 |
/* Setup the Protective MBR */ |
3cc566117 disk: efi: correc... |
394 |
ALLOC_CACHE_ALIGN_BUFFER_PAD(legacy_mbr, p_mbr, 1, dev_desc->blksz); |
61fcc7d27 part_efi: fix pro... |
395 |
memset(p_mbr, 0, sizeof(*p_mbr)); |
40684ddb8 gpt: Support for ... |
396 397 398 399 400 |
if (p_mbr == NULL) { printf("%s: calloc failed! ", __func__); return -1; } |
e163a931a cmd: gpt: backup ... |
401 402 403 |
/* Read MBR to backup boot code if it exists */ if (blk_dread(dev_desc, 0, 1, p_mbr) != 1) { |
9b643e312 treewide: replace... |
404 405 |
pr_err("** Can't read from device %d ** ", dev_desc->devnum); |
e163a931a cmd: gpt: backup ... |
406 407 |
return -1; } |
40684ddb8 gpt: Support for ... |
408 409 410 411 |
/* Append signature */ p_mbr->signature = MSDOS_MBR_SIGNATURE; p_mbr->partition_record[0].sys_ind = EFI_PMBR_OSTYPE_EFI_GPT; p_mbr->partition_record[0].start_sect = 1; |
b349abbfe gpt: Fix the prot... |
412 |
p_mbr->partition_record[0].nr_sects = (u32) dev_desc->lba - 1; |
40684ddb8 gpt: Support for ... |
413 414 |
/* Write MBR sector to the MMC device */ |
2a981dc2c dm: block: Adjust... |
415 |
if (blk_dwrite(dev_desc, 0, 1, p_mbr) != 1) { |
40684ddb8 gpt: Support for ... |
416 417 |
printf("** Can't write to device %d ** ", |
bcce53d04 dm: block: Rename... |
418 |
dev_desc->devnum); |
40684ddb8 gpt: Support for ... |
419 420 |
return -1; } |
40684ddb8 gpt: Support for ... |
421 422 |
return 0; } |
4101f6879 dm: Drop the bloc... |
423 |
int write_gpt_table(struct blk_desc *dev_desc, |
40684ddb8 gpt: Support for ... |
424 425 |
gpt_header *gpt_h, gpt_entry *gpt_e) { |
ae1768a72 disk/gpt: Fix GPT... |
426 427 |
const int pte_blk_cnt = BLOCK_CNT((gpt_h->num_partition_entries * sizeof(gpt_entry)), dev_desc); |
40684ddb8 gpt: Support for ... |
428 |
u32 calc_crc32; |
40684ddb8 gpt: Support for ... |
429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 |
debug("max lba: %x ", (u32) dev_desc->lba); /* Setup the Protective MBR */ if (set_protective_mbr(dev_desc) < 0) goto err; /* Generate CRC for the Primary GPT Header */ calc_crc32 = efi_crc32((const unsigned char *)gpt_e, le32_to_cpu(gpt_h->num_partition_entries) * le32_to_cpu(gpt_h->sizeof_partition_entry)); gpt_h->partition_entry_array_crc32 = cpu_to_le32(calc_crc32); calc_crc32 = efi_crc32((const unsigned char *)gpt_h, le32_to_cpu(gpt_h->header_size)); gpt_h->header_crc32 = cpu_to_le32(calc_crc32); /* Write the First GPT to the block right after the Legacy MBR */ |
2a981dc2c dm: block: Adjust... |
447 |
if (blk_dwrite(dev_desc, 1, 1, gpt_h) != 1) |
40684ddb8 gpt: Support for ... |
448 |
goto err; |
02e43537b part_efi: support... |
449 450 |
if (blk_dwrite(dev_desc, le64_to_cpu(gpt_h->partition_entry_lba), pte_blk_cnt, gpt_e) != pte_blk_cnt) |
40684ddb8 gpt: Support for ... |
451 |
goto err; |
e1f6b0a02 disk: part_efi: m... |
452 |
prepare_backup_gpt_header(gpt_h); |
40684ddb8 gpt: Support for ... |
453 |
|
2a981dc2c dm: block: Adjust... |
454 455 |
if (blk_dwrite(dev_desc, (lbaint_t)le64_to_cpu(gpt_h->last_usable_lba) + 1, pte_blk_cnt, gpt_e) != pte_blk_cnt) |
40684ddb8 gpt: Support for ... |
456 |
goto err; |
2a981dc2c dm: block: Adjust... |
457 458 |
if (blk_dwrite(dev_desc, (lbaint_t)le64_to_cpu(gpt_h->my_lba), 1, gpt_h) != 1) |
40684ddb8 gpt: Support for ... |
459 460 461 462 463 464 465 |
goto err; debug("GPT successfully written to block device! "); return 0; err: |
bcce53d04 dm: block: Rename... |
466 467 |
printf("** Can't write to device %d ** ", dev_desc->devnum); |
40684ddb8 gpt: Support for ... |
468 469 |
return -1; } |
47d7ee47b part: efi: make g... |
470 471 472 |
int gpt_fill_pte(struct blk_desc *dev_desc, gpt_header *gpt_h, gpt_entry *gpt_e, disk_partition_t *partitions, int parts) |
40684ddb8 gpt: Support for ... |
473 |
{ |
e04350d29 disk: part_efi: c... |
474 |
lbaint_t offset = (lbaint_t)le64_to_cpu(gpt_h->first_usable_lba); |
e04350d29 disk: part_efi: c... |
475 476 |
lbaint_t last_usable_lba = (lbaint_t) le64_to_cpu(gpt_h->last_usable_lba); |
40684ddb8 gpt: Support for ... |
477 |
int i, k; |
67cd4a634 disk: Fix possibl... |
478 |
size_t efiname_len, dosname_len; |
b331cd620 cmd, disk: conver... |
479 |
#if CONFIG_IS_ENABLED(PARTITION_UUIDS) |
40684ddb8 gpt: Support for ... |
480 |
char *str_uuid; |
a96a0e615 part_efi: move uu... |
481 |
unsigned char *bin_uuid; |
40684ddb8 gpt: Support for ... |
482 |
#endif |
7561b258a gpt: add optional... |
483 484 485 486 |
#ifdef CONFIG_PARTITION_TYPE_GUID char *str_type_guid; unsigned char *bin_type_guid; #endif |
79c5912e8 part: efi: Disabl... |
487 488 489 490 491 492 493 |
size_t hdr_start = gpt_h->my_lba; size_t hdr_end = hdr_start + 1; size_t pte_start = gpt_h->partition_entry_lba; size_t pte_end = pte_start + gpt_h->num_partition_entries * gpt_h->sizeof_partition_entry / dev_desc->blksz; |
40684ddb8 gpt: Support for ... |
494 495 496 |
for (i = 0; i < parts; i++) { /* partition starting lba */ |
5276e8b62 part: efi: rework... |
497 498 |
lbaint_t start = partitions[i].start; lbaint_t size = partitions[i].size; |
40684ddb8 gpt: Support for ... |
499 |
if (start) { |
5276e8b62 part: efi: rework... |
500 |
offset = start + size; |
40684ddb8 gpt: Support for ... |
501 |
} else { |
79c5912e8 part: efi: Disabl... |
502 |
start = offset; |
5276e8b62 part: efi: rework... |
503 |
offset += size; |
40684ddb8 gpt: Support for ... |
504 |
} |
79c5912e8 part: efi: Disabl... |
505 506 507 508 509 |
/* * If our partition overlaps with either the GPT * header, or the partition entry, reject it. */ |
ae0e0228e disk: efi: correc... |
510 511 |
if (((start < hdr_end && hdr_start < (start + size)) || (start < pte_end && pte_start < (start + size)))) { |
79c5912e8 part: efi: Disabl... |
512 513 514 515 516 517 |
printf("Partition overlap "); return -1; } gpt_e[i].starting_lba = cpu_to_le64(start); |
a56538676 disk: part_efi: f... |
518 |
if (offset > (last_usable_lba + 1)) { |
40684ddb8 gpt: Support for ... |
519 520 521 522 523 |
printf("Partitions layout exceds disk size "); return -1; } /* partition ending lba */ |
5276e8b62 part: efi: rework... |
524 |
if ((i == parts - 1) && (size == 0)) |
40684ddb8 gpt: Support for ... |
525 526 527 528 |
/* extend the last partition to maximuim */ gpt_e[i].ending_lba = gpt_h->last_usable_lba; else gpt_e[i].ending_lba = cpu_to_le64(offset - 1); |
7561b258a gpt: add optional... |
529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 |
#ifdef CONFIG_PARTITION_TYPE_GUID str_type_guid = partitions[i].type_guid; bin_type_guid = gpt_e[i].partition_type_guid.b; if (strlen(str_type_guid)) { if (uuid_str_to_bin(str_type_guid, bin_type_guid, UUID_STR_FORMAT_GUID)) { printf("Partition no. %d: invalid type guid: %s ", i, str_type_guid); return -1; } } else { /* default partition type GUID */ memcpy(bin_type_guid, &PARTITION_BASIC_DATA_GUID, 16); } #else |
40684ddb8 gpt: Support for ... |
546 547 548 |
/* partition type GUID */ memcpy(gpt_e[i].partition_type_guid.b, &PARTITION_BASIC_DATA_GUID, 16); |
7561b258a gpt: add optional... |
549 |
#endif |
40684ddb8 gpt: Support for ... |
550 |
|
b331cd620 cmd, disk: conver... |
551 |
#if CONFIG_IS_ENABLED(PARTITION_UUIDS) |
40684ddb8 gpt: Support for ... |
552 |
str_uuid = partitions[i].uuid; |
a96a0e615 part_efi: move uu... |
553 |
bin_uuid = gpt_e[i].unique_partition_guid.b; |
9da52f8f6 gpt: Fix uuid str... |
554 |
if (uuid_str_to_bin(str_uuid, bin_uuid, UUID_STR_FORMAT_GUID)) { |
40684ddb8 gpt: Support for ... |
555 556 557 558 559 560 561 562 563 564 |
printf("Partition no. %d: invalid guid: %s ", i, str_uuid); return -1; } #endif /* partition attributes */ memset(&gpt_e[i].attributes, 0, sizeof(gpt_entry_attributes)); |
cfdaf4caa part:efi: add boo... |
565 566 |
if (partitions[i].bootable) gpt_e[i].attributes.fields.legacy_bios_bootable = 1; |
40684ddb8 gpt: Support for ... |
567 |
/* partition name */ |
67cd4a634 disk: Fix possibl... |
568 |
efiname_len = sizeof(gpt_e[i].partition_name) |
40684ddb8 gpt: Support for ... |
569 |
/ sizeof(efi_char16_t); |
67cd4a634 disk: Fix possibl... |
570 571 572 573 574 575 |
dosname_len = sizeof(partitions[i].name); memset(gpt_e[i].partition_name, 0, sizeof(gpt_e[i].partition_name)); for (k = 0; k < min(dosname_len, efiname_len); k++) |
40684ddb8 gpt: Support for ... |
576 577 |
gpt_e[i].partition_name[k] = (efi_char16_t)(partitions[i].name[k]); |
e04350d29 disk: part_efi: c... |
578 579 580 |
debug("%s: name: %s offset[%d]: 0x" LBAF " size[%d]: 0x" LBAF " ", |
40684ddb8 gpt: Support for ... |
581 |
__func__, partitions[i].name, i, |
5276e8b62 part: efi: rework... |
582 |
offset, i, size); |
40684ddb8 gpt: Support for ... |
583 584 585 586 |
} return 0; } |
02e43537b part_efi: support... |
587 588 589 |
static uint32_t partition_entries_offset(struct blk_desc *dev_desc) { uint32_t offset_blks = 2; |
89d33a2c0 part: efi: Fix of... |
590 |
uint32_t __maybe_unused offset_bytes; |
02e43537b part_efi: support... |
591 592 593 594 595 596 597 598 599 600 601 |
int __maybe_unused config_offset; #if defined(CONFIG_EFI_PARTITION_ENTRIES_OFF) /* * Some architectures require their SPL loader at a fixed * address within the first 16KB of the disk. To avoid an * overlap with the partition entries of the EFI partition * table, the first safe offset (in bytes, from the start of * the disk) for the entries can be set in * CONFIG_EFI_PARTITION_ENTRIES_OFF. */ |
89d33a2c0 part: efi: Fix of... |
602 |
offset_bytes = |
02e43537b part_efi: support... |
603 |
PAD_TO_BLOCKSIZE(CONFIG_EFI_PARTITION_ENTRIES_OFF, dev_desc); |
89d33a2c0 part: efi: Fix of... |
604 |
offset_blks = offset_bytes / dev_desc->blksz; |
02e43537b part_efi: support... |
605 606 607 608 609 610 611 612 613 614 615 |
#endif #if defined(CONFIG_OF_CONTROL) /* * Allow the offset of the first partition entires (in bytes * from the start of the device) to be specified as a property * of the device tree '/config' node. */ config_offset = fdtdec_get_config_int(gd->fdt_blob, "u-boot,efi-partition-entries-offset", -EINVAL); |
89d33a2c0 part: efi: Fix of... |
616 617 618 619 |
if (config_offset != -EINVAL) { offset_bytes = PAD_TO_BLOCKSIZE(config_offset, dev_desc); offset_blks = offset_bytes / dev_desc->blksz; } |
02e43537b part_efi: support... |
620 621 622 623 624 625 626 627 628 629 630 631 632 633 |
#endif debug("efi: partition entries offset (in blocks): %d ", offset_blks); /* * The earliest LBA this can be at is LBA#2 (i.e. right behind * the (protective) MBR and the GPT header. */ if (offset_blks < 2) offset_blks = 2; return offset_blks; } |
4101f6879 dm: Drop the bloc... |
634 |
int gpt_fill_header(struct blk_desc *dev_desc, gpt_header *gpt_h, |
40684ddb8 gpt: Support for ... |
635 636 637 638 639 640 641 |
char *str_guid, int parts_count) { gpt_h->signature = cpu_to_le64(GPT_HEADER_SIGNATURE); gpt_h->revision = cpu_to_le32(GPT_HEADER_REVISION_V1); gpt_h->header_size = cpu_to_le32(sizeof(gpt_header)); gpt_h->my_lba = cpu_to_le64(1); gpt_h->alternate_lba = cpu_to_le64(dev_desc->lba - 1); |
40684ddb8 gpt: Support for ... |
642 |
gpt_h->last_usable_lba = cpu_to_le64(dev_desc->lba - 34); |
02e43537b part_efi: support... |
643 644 645 646 |
gpt_h->partition_entry_lba = cpu_to_le64(partition_entries_offset(dev_desc)); gpt_h->first_usable_lba = cpu_to_le64(le64_to_cpu(gpt_h->partition_entry_lba) + 32); |
40684ddb8 gpt: Support for ... |
647 648 649 650 |
gpt_h->num_partition_entries = cpu_to_le32(GPT_ENTRY_NUMBERS); gpt_h->sizeof_partition_entry = cpu_to_le32(sizeof(gpt_entry)); gpt_h->header_crc32 = 0; gpt_h->partition_entry_array_crc32 = 0; |
d718ded05 lib: uuid: code r... |
651 |
if (uuid_str_to_bin(str_guid, gpt_h->disk_guid.b, UUID_STR_FORMAT_GUID)) |
40684ddb8 gpt: Support for ... |
652 653 654 655 |
return -1; return 0; } |
4101f6879 dm: Drop the bloc... |
656 |
int gpt_restore(struct blk_desc *dev_desc, char *str_disk_guid, |
40684ddb8 gpt: Support for ... |
657 658 |
disk_partition_t *partitions, int parts_count) { |
bb021013b gpt: Use cache al... |
659 |
gpt_header *gpt_h; |
ae1768a72 disk/gpt: Fix GPT... |
660 |
gpt_entry *gpt_e; |
bb021013b gpt: Use cache al... |
661 |
int ret, size; |
ae1768a72 disk/gpt: Fix GPT... |
662 |
|
bb021013b gpt: Use cache al... |
663 664 |
size = PAD_TO_BLOCKSIZE(sizeof(gpt_header), dev_desc); gpt_h = malloc_cache_aligned(size); |
40684ddb8 gpt: Support for ... |
665 666 667 668 669 |
if (gpt_h == NULL) { printf("%s: calloc failed! ", __func__); return -1; } |
bb021013b gpt: Use cache al... |
670 |
memset(gpt_h, 0, size); |
40684ddb8 gpt: Support for ... |
671 |
|
bb021013b gpt: Use cache al... |
672 673 674 |
size = PAD_TO_BLOCKSIZE(GPT_ENTRY_NUMBERS * sizeof(gpt_entry), dev_desc); gpt_e = malloc_cache_aligned(size); |
40684ddb8 gpt: Support for ... |
675 676 677 678 679 680 |
if (gpt_e == NULL) { printf("%s: calloc failed! ", __func__); free(gpt_h); return -1; } |
bb021013b gpt: Use cache al... |
681 |
memset(gpt_e, 0, size); |
40684ddb8 gpt: Support for ... |
682 683 684 685 686 687 688 |
/* Generate Primary GPT header (LBA1) */ ret = gpt_fill_header(dev_desc, gpt_h, str_disk_guid, parts_count); if (ret) goto err; /* Generate partition entries */ |
47d7ee47b part: efi: make g... |
689 |
ret = gpt_fill_pte(dev_desc, gpt_h, gpt_e, partitions, parts_count); |
40684ddb8 gpt: Support for ... |
690 691 692 693 694 695 696 697 698 699 700 |
if (ret) goto err; /* Write GPT partition table */ ret = write_gpt_table(dev_desc, gpt_h, gpt_e); err: free(gpt_e); free(gpt_h); return ret; } |
0ff7e585d fastboot: handle ... |
701 |
|
cef68bf90 gpt: part: Defini... |
702 703 704 705 706 707 708 709 710 711 712 713 714 |
static void gpt_convert_efi_name_to_char(char *s, efi_char16_t *es, int n) { char *ess = (char *)es; int i, j; memset(s, '\0', n); for (i = 0, j = 0; j < n; i += 2, j++) { s[j] = ess[i]; if (!ess[i]) return; } } |
4101f6879 dm: Drop the bloc... |
715 |
int gpt_verify_headers(struct blk_desc *dev_desc, gpt_header *gpt_head, |
cef68bf90 gpt: part: Defini... |
716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 |
gpt_entry **gpt_pte) { /* * This function validates AND * fills in the GPT header and PTE */ if (is_gpt_valid(dev_desc, GPT_PRIMARY_PARTITION_TABLE_LBA, gpt_head, gpt_pte) != 1) { printf("%s: *** ERROR: Invalid GPT *** ", __func__); return -1; } if (is_gpt_valid(dev_desc, (dev_desc->lba - 1), gpt_head, gpt_pte) != 1) { printf("%s: *** ERROR: Invalid Backup GPT *** ", __func__); return -1; } return 0; } |
4101f6879 dm: Drop the bloc... |
740 |
int gpt_verify_partitions(struct blk_desc *dev_desc, |
cef68bf90 gpt: part: Defini... |
741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 |
disk_partition_t *partitions, int parts, gpt_header *gpt_head, gpt_entry **gpt_pte) { char efi_str[PARTNAME_SZ + 1]; u64 gpt_part_size; gpt_entry *gpt_e; int ret, i; ret = gpt_verify_headers(dev_desc, gpt_head, gpt_pte); if (ret) return ret; gpt_e = *gpt_pte; for (i = 0; i < parts; i++) { if (i == gpt_head->num_partition_entries) { |
9b643e312 treewide: replace... |
757 758 |
pr_err("More partitions than allowed! "); |
cef68bf90 gpt: part: Defini... |
759 760 761 762 763 764 765 766 767 768 769 770 |
return -1; } /* Check if GPT and ENV partition names match */ gpt_convert_efi_name_to_char(efi_str, gpt_e[i].partition_name, PARTNAME_SZ + 1); debug("%s: part: %2d name - GPT: %16s, ENV: %16s ", __func__, i, efi_str, partitions[i].name); if (strncmp(efi_str, (char *)partitions[i].name, sizeof(partitions->name))) { |
9b643e312 treewide: replace... |
771 772 |
pr_err("Partition name: %s does not match %s! ", |
cef68bf90 gpt: part: Defini... |
773 774 775 776 777 778 779 780 |
efi_str, (char *)partitions[i].name); return -1; } /* Check if GPT and ENV sizes match */ gpt_part_size = le64_to_cpu(gpt_e[i].ending_lba) - le64_to_cpu(gpt_e[i].starting_lba) + 1; debug("size(LBA) - GPT: %8llu, ENV: %8llu ", |
f8d6165d4 dm: part: Correct... |
781 782 |
(unsigned long long)gpt_part_size, (unsigned long long)partitions[i].size); |
cef68bf90 gpt: part: Defini... |
783 784 |
if (le64_to_cpu(gpt_part_size) != partitions[i].size) { |
c2fdd3456 cmd: gpt: fix the... |
785 786 787 |
/* We do not check the extend partition size */ if ((i == parts - 1) && (partitions[i].size == 0)) continue; |
9b643e312 treewide: replace... |
788 789 |
pr_err("Partition %s size: %llu does not match %llu! ", |
f8d6165d4 dm: part: Correct... |
790 791 |
efi_str, (unsigned long long)gpt_part_size, (unsigned long long)partitions[i].size); |
cef68bf90 gpt: part: Defini... |
792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 |
return -1; } /* * Start address is optional - check only if provided * in '$partition' variable */ if (!partitions[i].start) { debug(" "); continue; } /* Check if GPT and ENV start LBAs match */ debug("start LBA - GPT: %8llu, ENV: %8llu ", le64_to_cpu(gpt_e[i].starting_lba), |
f8d6165d4 dm: part: Correct... |
809 |
(unsigned long long)partitions[i].start); |
cef68bf90 gpt: part: Defini... |
810 811 |
if (le64_to_cpu(gpt_e[i].starting_lba) != partitions[i].start) { |
9b643e312 treewide: replace... |
812 813 |
pr_err("Partition %s start: %llu does not match %llu! ", |
cef68bf90 gpt: part: Defini... |
814 |
efi_str, le64_to_cpu(gpt_e[i].starting_lba), |
f8d6165d4 dm: part: Correct... |
815 |
(unsigned long long)partitions[i].start); |
cef68bf90 gpt: part: Defini... |
816 817 818 819 820 821 |
return -1; } } return 0; } |
4101f6879 dm: Drop the bloc... |
822 |
int is_valid_gpt_buf(struct blk_desc *dev_desc, void *buf) |
0ff7e585d fastboot: handle ... |
823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 |
{ gpt_header *gpt_h; gpt_entry *gpt_e; /* determine start of GPT Header in the buffer */ gpt_h = buf + (GPT_PRIMARY_PARTITION_TABLE_LBA * dev_desc->blksz); if (validate_gpt_header(gpt_h, GPT_PRIMARY_PARTITION_TABLE_LBA, dev_desc->lba)) return -1; /* determine start of GPT Entries in the buffer */ gpt_e = buf + (le64_to_cpu(gpt_h->partition_entry_lba) * dev_desc->blksz); if (validate_gpt_entries(gpt_h, gpt_e)) return -1; return 0; } |
4101f6879 dm: Drop the bloc... |
842 |
int write_mbr_and_gpt_partitions(struct blk_desc *dev_desc, void *buf) |
0ff7e585d fastboot: handle ... |
843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 |
{ gpt_header *gpt_h; gpt_entry *gpt_e; int gpt_e_blk_cnt; lbaint_t lba; int cnt; if (is_valid_gpt_buf(dev_desc, buf)) return -1; /* determine start of GPT Header in the buffer */ gpt_h = buf + (GPT_PRIMARY_PARTITION_TABLE_LBA * dev_desc->blksz); /* determine start of GPT Entries in the buffer */ gpt_e = buf + (le64_to_cpu(gpt_h->partition_entry_lba) * dev_desc->blksz); gpt_e_blk_cnt = BLOCK_CNT((le32_to_cpu(gpt_h->num_partition_entries) * le32_to_cpu(gpt_h->sizeof_partition_entry)), dev_desc); /* write MBR */ lba = 0; /* MBR is always at 0 */ cnt = 1; /* MBR (1 block) */ |
2a981dc2c dm: block: Adjust... |
867 |
if (blk_dwrite(dev_desc, lba, cnt, buf) != cnt) { |
0ff7e585d fastboot: handle ... |
868 869 870 871 872 873 874 875 876 |
printf("%s: failed writing '%s' (%d blks at 0x" LBAF ") ", __func__, "MBR", cnt, lba); return 1; } /* write Primary GPT */ lba = GPT_PRIMARY_PARTITION_TABLE_LBA; cnt = 1; /* GPT Header (1 block) */ |
2a981dc2c dm: block: Adjust... |
877 |
if (blk_dwrite(dev_desc, lba, cnt, gpt_h) != cnt) { |
0ff7e585d fastboot: handle ... |
878 879 880 881 882 883 884 885 |
printf("%s: failed writing '%s' (%d blks at 0x" LBAF ") ", __func__, "Primary GPT Header", cnt, lba); return 1; } lba = le64_to_cpu(gpt_h->partition_entry_lba); cnt = gpt_e_blk_cnt; |
2a981dc2c dm: block: Adjust... |
886 |
if (blk_dwrite(dev_desc, lba, cnt, gpt_e) != cnt) { |
0ff7e585d fastboot: handle ... |
887 888 889 890 891 892 893 894 895 896 897 |
printf("%s: failed writing '%s' (%d blks at 0x" LBAF ") ", __func__, "Primary GPT Entries", cnt, lba); return 1; } prepare_backup_gpt_header(gpt_h); /* write Backup GPT */ lba = le64_to_cpu(gpt_h->partition_entry_lba); cnt = gpt_e_blk_cnt; |
2a981dc2c dm: block: Adjust... |
898 |
if (blk_dwrite(dev_desc, lba, cnt, gpt_e) != cnt) { |
0ff7e585d fastboot: handle ... |
899 900 901 902 903 904 905 906 |
printf("%s: failed writing '%s' (%d blks at 0x" LBAF ") ", __func__, "Backup GPT Entries", cnt, lba); return 1; } lba = le64_to_cpu(gpt_h->my_lba); cnt = 1; /* GPT Header (1 block) */ |
2a981dc2c dm: block: Adjust... |
907 |
if (blk_dwrite(dev_desc, lba, cnt, gpt_h) != cnt) { |
0ff7e585d fastboot: handle ... |
908 909 910 911 912 913 914 915 |
printf("%s: failed writing '%s' (%d blks at 0x" LBAF ") ", __func__, "Backup GPT Header", cnt, lba); return 1; } return 0; } |
2c840c82b MLK-18591-3 andro... |
916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 |
int write_backup_gpt_partitions(struct blk_desc *dev_desc, void *buf) { gpt_header *gpt_h; gpt_entry *gpt_e; int gpt_e_blk_cnt; lbaint_t lba; int cnt; if (is_valid_gpt_buf(dev_desc, buf)) return -1; /* determine start of GPT Header in the buffer */ gpt_h = buf + (GPT_PRIMARY_PARTITION_TABLE_LBA * dev_desc->blksz); /* determine start of GPT Entries in the buffer */ gpt_e = buf + (le64_to_cpu(gpt_h->partition_entry_lba) * dev_desc->blksz); gpt_e_blk_cnt = BLOCK_CNT((le32_to_cpu(gpt_h->num_partition_entries) * le32_to_cpu(gpt_h->sizeof_partition_entry)), dev_desc); /* write MBR */ lba = 0; /* MBR is always at 0 */ cnt = 1; /* MBR (1 block) */ if (blk_dwrite(dev_desc, lba, cnt, buf) != cnt) { printf("%s: failed writing '%s' (%d blks at 0x" LBAF ") ", __func__, "MBR", cnt, lba); return 1; } prepare_last_lba_gpt_header(dev_desc, gpt_h); /* write Backup GPT */ lba = le64_to_cpu(gpt_h->partition_entry_lba); cnt = gpt_e_blk_cnt; if (blk_dwrite(dev_desc, lba, cnt, gpt_e) != cnt) { printf("%s: failed writing '%s' (%d blks at 0x" LBAF ") ", __func__, "Backup GPT Entries", cnt, lba); return 1; } lba = le64_to_cpu(gpt_h->my_lba); cnt = 1; /* GPT Header (1 block) */ if (blk_dwrite(dev_desc, lba, cnt, gpt_h) != cnt) { printf("%s: failed writing '%s' (%d blks at 0x" LBAF ") ", __func__, "Backup GPT Header", cnt, lba); return 1; } return 0; } |
40684ddb8 gpt: Support for ... |
971 |
#endif |
07f3d789b Add support for C... |
972 973 974 975 976 977 978 979 980 981 982 |
/* * Private functions */ /* * pmbr_part_valid(): Check for EFI partition signature * * Returns: 1 if EFI GPT partition type is found. */ static int pmbr_part_valid(struct partition *part) { if (part->sys_ind == EFI_PMBR_OSTYPE_EFI_GPT && |
8faefadb7 disk: fix unalign... |
983 |
get_unaligned_le32(&part->start_sect) == 1UL) { |
07f3d789b Add support for C... |
984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 |
return 1; } return 0; } /* * is_pmbr_valid(): test Protective MBR for validity * * Returns: 1 if PMBR is valid, 0 otherwise. * Validity depends on two things: * 1) MSDOS signature is in the last two bytes of the MBR * 2) One partition of type 0xEE is found, checked by pmbr_part_valid() */ static int is_pmbr_valid(legacy_mbr * mbr) { int i = 0; |
fae2bf22a gpt: The leXX_to_... |
1001 |
if (!mbr || le16_to_cpu(mbr->signature) != MSDOS_MBR_SIGNATURE) |
07f3d789b Add support for C... |
1002 |
return 0; |
07f3d789b Add support for C... |
1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 |
for (i = 0; i < 4; i++) { if (pmbr_part_valid(&mbr->partition_record[i])) { return 1; } } return 0; } /** * is_gpt_valid() - tests one GPT header and PTEs for validity * * lba is the logical block address of the GPT header to test * gpt is a GPT header ptr, filled on return. * ptes is a PTEs ptr, filled on return. * * Description: returns 1 if valid, 0 on error. * If valid, returns pointers to PTEs. */ |
4101f6879 dm: Drop the bloc... |
1022 |
static int is_gpt_valid(struct blk_desc *dev_desc, u64 lba, |
e04350d29 disk: part_efi: c... |
1023 |
gpt_header *pgpt_head, gpt_entry **pgpt_pte) |
07f3d789b Add support for C... |
1024 |
{ |
b351ccf11 part_efi: In is_g... |
1025 |
/* Confirm valid arguments prior to allocation. */ |
07f3d789b Add support for C... |
1026 |
if (!dev_desc || !pgpt_head) { |
df70b1c2e cosmetic: Replace... |
1027 1028 |
printf("%s: Invalid Argument(s) ", __func__); |
07f3d789b Add support for C... |
1029 1030 |
return 0; } |
3cc566117 disk: efi: correc... |
1031 |
ALLOC_CACHE_ALIGN_BUFFER_PAD(legacy_mbr, mbr, 1, dev_desc->blksz); |
b351ccf11 part_efi: In is_g... |
1032 |
|
ff98cb905 part: extract MBR... |
1033 1034 1035 1036 1037 1038 |
/* Read MBR Header from device */ if (blk_dread(dev_desc, 0, 1, (ulong *)mbr) != 1) { printf("*** ERROR: Can't read MBR header *** "); return 0; } |
07f3d789b Add support for C... |
1039 |
/* Read GPT Header from device */ |
2a981dc2c dm: block: Adjust... |
1040 |
if (blk_dread(dev_desc, (lbaint_t)lba, 1, pgpt_head) != 1) { |
07f3d789b Add support for C... |
1041 1042 1043 1044 |
printf("*** ERROR: Can't read GPT header *** "); return 0; } |
e1f6b0a02 disk: part_efi: m... |
1045 |
if (validate_gpt_header(pgpt_head, (lbaint_t)lba, dev_desc->lba)) |
07f3d789b Add support for C... |
1046 |
return 0; |
07f3d789b Add support for C... |
1047 |
|
ff98cb905 part: extract MBR... |
1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 |
if (dev_desc->sig_type == SIG_TYPE_NONE) { efi_guid_t empty = {}; if (memcmp(&pgpt_head->disk_guid, &empty, sizeof(empty))) { dev_desc->sig_type = SIG_TYPE_GUID; memcpy(&dev_desc->guid_sig, &pgpt_head->disk_guid, sizeof(empty)); } else if (mbr->unique_mbr_signature != 0) { dev_desc->sig_type = SIG_TYPE_MBR; dev_desc->mbr_sig = mbr->unique_mbr_signature; } } |
07f3d789b Add support for C... |
1059 1060 1061 1062 1063 1064 1065 |
/* Read and allocate Partition Table Entries */ *pgpt_pte = alloc_read_gpt_entries(dev_desc, pgpt_head); if (*pgpt_pte == NULL) { printf("GPT: Failed to allocate memory for PTE "); return 0; } |
e1f6b0a02 disk: part_efi: m... |
1066 |
if (validate_gpt_entries(pgpt_head, *pgpt_pte)) { |
dbcf1e3cc [iot] Support dua... |
1067 1068 1069 1070 1071 1072 1073 |
#if !defined(CONFIG_DUAL_BOOTLOADER) || !defined(CONFIG_SPL_BUILD) /* Heap memory is very limited in SPL, if the dual bootloader is * enabled, just load pte to dram instead of oc-ram. In such case, * this part of memory shouldn't be freed. But in common routine, * don't forget to free the memory after use. */ |
deb5ca802 disk: part_efi: f... |
1074 |
free(*pgpt_pte); |
dbcf1e3cc [iot] Support dua... |
1075 |
#endif |
07f3d789b Add support for C... |
1076 1077 |
return 0; } |
07f3d789b Add support for C... |
1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 |
/* We're done, all's well */ return 1; } /** * alloc_read_gpt_entries(): reads partition entries from disk * @dev_desc * @gpt - GPT header * * Description: Returns ptes on success, NULL on error. * Allocates space for PTEs based on information found in @gpt. * Notes: remember to free pte when you're done! */ |
4101f6879 dm: Drop the bloc... |
1091 1092 |
static gpt_entry *alloc_read_gpt_entries(struct blk_desc *dev_desc, gpt_header *pgpt_head) |
07f3d789b Add support for C... |
1093 |
{ |
ae1768a72 disk/gpt: Fix GPT... |
1094 |
size_t count = 0, blk_cnt; |
7c4213f6a block: pass block... |
1095 |
lbaint_t blk; |
07f3d789b Add support for C... |
1096 1097 1098 |
gpt_entry *pte = NULL; if (!dev_desc || !pgpt_head) { |
df70b1c2e cosmetic: Replace... |
1099 1100 |
printf("%s: Invalid Argument(s) ", __func__); |
07f3d789b Add support for C... |
1101 1102 |
return NULL; } |
fae2bf22a gpt: The leXX_to_... |
1103 1104 |
count = le32_to_cpu(pgpt_head->num_partition_entries) * le32_to_cpu(pgpt_head->sizeof_partition_entry); |
07f3d789b Add support for C... |
1105 |
|
5afb8d151 part_efi: Fix com... |
1106 1107 |
debug("%s: count = %u * %u = %lu ", __func__, |
fae2bf22a gpt: The leXX_to_... |
1108 |
(u32) le32_to_cpu(pgpt_head->num_partition_entries), |
5afb8d151 part_efi: Fix com... |
1109 1110 |
(u32) le32_to_cpu(pgpt_head->sizeof_partition_entry), (ulong)count); |
07f3d789b Add support for C... |
1111 |
|
dbcf1e3cc [iot] Support dua... |
1112 1113 1114 1115 1116 1117 |
/* Allocate memory for PTE. * Heap memory is very limited in SPL, if the dual bootloader is * enabled, just load pte to dram instead of oc-ram. In such case, * this part of memory shouldn't be freed. But in common routine, * don't forget to free the memory after use. */ |
07f3d789b Add support for C... |
1118 |
if (count != 0) { |
dbcf1e3cc [iot] Support dua... |
1119 1120 1121 |
#if defined(CONFIG_DUAL_BOOTLOADER) && defined(CONFIG_SPL_BUILD) pte = (gpt_entry *)CONFIG_SYS_SPL_PTE_RAM_BASE; #else |
ae1768a72 disk/gpt: Fix GPT... |
1122 1123 |
pte = memalign(ARCH_DMA_MINALIGN, PAD_TO_BLOCKSIZE(count, dev_desc)); |
dbcf1e3cc [iot] Support dua... |
1124 |
#endif |
07f3d789b Add support for C... |
1125 1126 1127 |
} if (count == 0 || pte == NULL) { |
5afb8d151 part_efi: Fix com... |
1128 1129 1130 |
printf("%s: ERROR: Can't allocate %#lX bytes for GPT Entries ", __func__, (ulong)count); |
07f3d789b Add support for C... |
1131 1132 |
return NULL; } |
07f3d789b Add support for C... |
1133 |
/* Read GPT Entries from device */ |
7c4213f6a block: pass block... |
1134 |
blk = le64_to_cpu(pgpt_head->partition_entry_lba); |
ae1768a72 disk/gpt: Fix GPT... |
1135 |
blk_cnt = BLOCK_CNT(count, dev_desc); |
2a981dc2c dm: block: Adjust... |
1136 |
if (blk_dread(dev_desc, blk, (lbaint_t)blk_cnt, pte) != blk_cnt) { |
07f3d789b Add support for C... |
1137 1138 |
printf("*** ERROR: Can't read GPT Entries *** "); |
dbcf1e3cc [iot] Support dua... |
1139 |
#if !defined(CONFIG_DUAL_BOOTLOADER) || !defined(CONFIG_SPL_BUILD) |
07f3d789b Add support for C... |
1140 |
free(pte); |
dbcf1e3cc [iot] Support dua... |
1141 |
#endif |
07f3d789b Add support for C... |
1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 |
return NULL; } return pte; } /** * is_pte_valid(): validates a single Partition Table Entry * @gpt_entry - Pointer to a single Partition Table Entry * * Description: returns 1 if valid, 0 on error. */ static int is_pte_valid(gpt_entry * pte) { efi_guid_t unused_guid; if (!pte) { |
df70b1c2e cosmetic: Replace... |
1158 1159 |
printf("%s: Invalid Argument(s) ", __func__); |
07f3d789b Add support for C... |
1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 |
return 0; } /* Only one validation for now: * The GUID Partition Type != Unused Entry (ALL-ZERO) */ memset(unused_guid.b, 0, sizeof(unused_guid.b)); if (memcmp(pte->partition_type_guid.b, unused_guid.b, sizeof(unused_guid.b)) == 0) { |
df70b1c2e cosmetic: Replace... |
1170 1171 |
debug("%s: Found an unused PTE GUID at 0x%08X ", __func__, |
9936be31f disk: Address cas... |
1172 |
(unsigned int)(uintptr_t)pte); |
07f3d789b Add support for C... |
1173 1174 1175 1176 1177 1178 |
return 0; } else { return 1; } } |
96e5b03c8 dm: part: Convert... |
1179 1180 1181 1182 1183 1184 1185 1186 1187 |
/* * Add an 'a_' prefix so it comes before 'dos' in the linker list. We need to * check EFI first, since a DOS partition is often used as a 'protective MBR' * with EFI. */ U_BOOT_PART_TYPE(a_efi) = { .name = "EFI", .part_type = PART_TYPE_EFI, |
87b8530fe disk: part: imple... |
1188 |
.max_entries = GPT_ENTRY_NUMBERS, |
3e8bd4695 dm: part: Rename ... |
1189 |
.get_info = part_get_info_ptr(part_get_info_efi), |
084bf4c24 part: Rename test... |
1190 1191 |
.print = part_print_ptr(part_print_efi), .test = part_test_efi, |
96e5b03c8 dm: part: Convert... |
1192 |
}; |
07f3d789b Add support for C... |
1193 |
#endif |