Andrew Geissler | 2daf84b | 2023-03-31 09:57:23 -0500 | [diff] [blame] | 1 | From 1fdc3000f1ab6f9c1bb792cb8baff16a7517c03a Mon Sep 17 00:00:00 2001 |
| 2 | From: Mohamed Omar Asaker <mohamed.omarasaker@arm.com> |
| 3 | Date: Thu, 22 Dec 2022 14:27:41 +0000 |
| 4 | Subject: [PATCH 7/10] Platform:corstone1000: Introduce GPT parser |
| 5 | |
| 6 | Adding GPT parser |
| 7 | Side changes required: |
| 8 | Includes the implementation of the `plat_get_image_source` function |
| 9 | in the platform.c file. |
| 10 | |
| 11 | The GPT parser requires the function. Given the image id, it should |
| 12 | return handle to the IO device contains the image and image |
| 13 | specification that allows IO storage access to the image. |
| 14 | |
| 15 | Signed-off-by: Mohamed Omar Asaker <mohamed.omarasaker@arm.com> |
| 16 | Upstream-Status: Pending [Not submitted to upstream yet] |
| 17 | --- |
| 18 | .../target/arm/corstone1000/partition/efi.h | 36 ++ |
| 19 | .../target/arm/corstone1000/partition/gpt.c | 58 ++++ |
| 20 | .../target/arm/corstone1000/partition/gpt.h | 51 +++ |
| 21 | .../target/arm/corstone1000/partition/mbr.h | 29 ++ |
| 22 | .../arm/corstone1000/partition/partition.c | 310 ++++++++++++++++++ |
| 23 | .../arm/corstone1000/partition/partition.h | 47 +++ |
| 24 | .../target/arm/corstone1000/partition/uuid.h | 76 +++++ |
| 25 | .../ext/target/arm/corstone1000/platform.c | 20 ++ |
| 26 | .../ext/target/arm/corstone1000/platform.h | 14 + |
| 27 | 9 files changed, 641 insertions(+) |
| 28 | create mode 100644 platform/ext/target/arm/corstone1000/partition/efi.h |
| 29 | create mode 100644 platform/ext/target/arm/corstone1000/partition/gpt.c |
| 30 | create mode 100644 platform/ext/target/arm/corstone1000/partition/gpt.h |
| 31 | create mode 100644 platform/ext/target/arm/corstone1000/partition/mbr.h |
| 32 | create mode 100644 platform/ext/target/arm/corstone1000/partition/partition.c |
| 33 | create mode 100644 platform/ext/target/arm/corstone1000/partition/partition.h |
| 34 | create mode 100644 platform/ext/target/arm/corstone1000/partition/uuid.h |
| 35 | create mode 100644 platform/ext/target/arm/corstone1000/platform.c |
| 36 | create mode 100644 platform/ext/target/arm/corstone1000/platform.h |
| 37 | |
| 38 | diff --git a/platform/ext/target/arm/corstone1000/partition/efi.h b/platform/ext/target/arm/corstone1000/partition/efi.h |
| 39 | new file mode 100644 |
| 40 | index 0000000000..f66daffb32 |
| 41 | --- /dev/null |
| 42 | +++ b/platform/ext/target/arm/corstone1000/partition/efi.h |
| 43 | @@ -0,0 +1,36 @@ |
| 44 | +/* |
| 45 | + * Copyright (c) 2021, Linaro Limited |
| 46 | + * |
| 47 | + * SPDX-License-Identifier: BSD-3-Clause |
| 48 | + * |
| 49 | + */ |
| 50 | + |
| 51 | +#ifndef DRIVERS_PARTITION_EFI_H |
| 52 | +#define DRIVERS_PARTITION_EFI_H |
| 53 | + |
| 54 | +#include <string.h> |
| 55 | + |
| 56 | +#include "uuid.h" |
| 57 | + |
| 58 | +#define EFI_NAMELEN 36 |
| 59 | + |
| 60 | +static inline int guidcmp(const void *g1, const void *g2) { |
| 61 | + return memcmp(g1, g2, sizeof(struct efi_guid)); |
| 62 | +} |
| 63 | + |
| 64 | +static inline void *guidcpy(void *dst, const void *src) { |
| 65 | + return memcpy(dst, src, sizeof(struct efi_guid)); |
| 66 | +} |
| 67 | + |
| 68 | +#define EFI_GUID(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7) \ |
| 69 | + { \ |
| 70 | + (a) & 0xffffffff, (b)&0xffff, (c)&0xffff, { \ |
| 71 | + (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) \ |
| 72 | + } \ |
| 73 | + } |
| 74 | + |
| 75 | +#define NULL_GUID \ |
| 76 | + EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \ |
| 77 | + 0x00, 0x00) |
| 78 | + |
| 79 | +#endif /* DRIVERS_PARTITION_EFI_H */ |
| 80 | diff --git a/platform/ext/target/arm/corstone1000/partition/gpt.c b/platform/ext/target/arm/corstone1000/partition/gpt.c |
| 81 | new file mode 100644 |
| 82 | index 0000000000..8549785e3b |
| 83 | --- /dev/null |
| 84 | +++ b/platform/ext/target/arm/corstone1000/partition/gpt.c |
| 85 | @@ -0,0 +1,58 @@ |
| 86 | +/* |
| 87 | + * Copyright (c) 2016-2022, ARM Limited and Contributors. All rights reserved. |
| 88 | + * |
| 89 | + * SPDX-License-Identifier: BSD-3-Clause |
| 90 | + */ |
| 91 | + |
| 92 | +#include "gpt.h" |
| 93 | + |
| 94 | +#include <assert.h> |
| 95 | +#include <errno.h> |
| 96 | +#include <string.h> |
| 97 | + |
| 98 | +#include "efi.h" |
| 99 | + |
| 100 | +static int unicode_to_ascii(unsigned short *str_in, unsigned char *str_out) { |
| 101 | + uint8_t *name; |
| 102 | + int i; |
| 103 | + |
| 104 | + assert((str_in != NULL) && (str_out != NULL)); |
| 105 | + |
| 106 | + name = (uint8_t *)str_in; |
| 107 | + |
| 108 | + assert(name[0] != '\0'); |
| 109 | + |
| 110 | + /* check whether the unicode string is valid */ |
| 111 | + for (i = 1; i < (EFI_NAMELEN << 1); i += 2) { |
| 112 | + if (name[i] != '\0') return -EINVAL; |
| 113 | + } |
| 114 | + /* convert the unicode string to ascii string */ |
| 115 | + for (i = 0; i < (EFI_NAMELEN << 1); i += 2) { |
| 116 | + str_out[i >> 1] = name[i]; |
| 117 | + if (name[i] == '\0') break; |
| 118 | + } |
| 119 | + return 0; |
| 120 | +} |
| 121 | + |
| 122 | +int parse_gpt_entry(gpt_entry_t *gpt_entry, partition_entry_t *entry) { |
| 123 | + int result; |
| 124 | + |
| 125 | + assert((gpt_entry != NULL) && (entry != NULL)); |
| 126 | + |
| 127 | + if ((gpt_entry->first_lba == 0) && (gpt_entry->last_lba == 0)) { |
| 128 | + return -EINVAL; |
| 129 | + } |
| 130 | + |
| 131 | + memset(entry, 0, sizeof(partition_entry_t)); |
| 132 | + result = unicode_to_ascii(gpt_entry->name, (uint8_t *)entry->name); |
| 133 | + if (result != 0) { |
| 134 | + return result; |
| 135 | + } |
| 136 | + entry->start = (uint64_t)gpt_entry->first_lba * PLAT_PARTITION_BLOCK_SIZE; |
| 137 | + entry->length = (uint64_t)(gpt_entry->last_lba - gpt_entry->first_lba + 1) * |
| 138 | + PLAT_PARTITION_BLOCK_SIZE; |
| 139 | + guidcpy(&entry->part_guid, &gpt_entry->unique_uuid); |
| 140 | + guidcpy(&entry->type_guid, &gpt_entry->type_uuid); |
| 141 | + |
| 142 | + return 0; |
| 143 | +} |
| 144 | diff --git a/platform/ext/target/arm/corstone1000/partition/gpt.h b/platform/ext/target/arm/corstone1000/partition/gpt.h |
| 145 | new file mode 100644 |
| 146 | index 0000000000..b528fc05c0 |
| 147 | --- /dev/null |
| 148 | +++ b/platform/ext/target/arm/corstone1000/partition/gpt.h |
| 149 | @@ -0,0 +1,51 @@ |
| 150 | +/* |
| 151 | + * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. |
| 152 | + * |
| 153 | + * SPDX-License-Identifier: BSD-3-Clause |
| 154 | + */ |
| 155 | + |
| 156 | +#ifndef GPT_H |
| 157 | +#define GPT_H |
| 158 | + |
| 159 | +#include "efi.h" |
| 160 | +#include "partition.h" |
| 161 | +#include "uuid.h" |
| 162 | + |
| 163 | +#define PARTITION_TYPE_GPT 0xee |
| 164 | +#define GPT_HEADER_OFFSET PLAT_PARTITION_BLOCK_SIZE |
| 165 | +#define GPT_ENTRY_OFFSET (GPT_HEADER_OFFSET + PLAT_PARTITION_BLOCK_SIZE) |
| 166 | + |
| 167 | +#define GPT_SIGNATURE "EFI PART" |
| 168 | + |
| 169 | +typedef struct gpt_entry { |
| 170 | + struct efi_guid type_uuid; |
| 171 | + struct efi_guid unique_uuid; |
| 172 | + unsigned long long first_lba; |
| 173 | + unsigned long long last_lba; |
| 174 | + unsigned long long attr; |
| 175 | + unsigned short name[EFI_NAMELEN]; |
| 176 | +} gpt_entry_t; |
| 177 | + |
| 178 | +typedef struct gpt_header { |
| 179 | + unsigned char signature[8]; |
| 180 | + unsigned int revision; |
| 181 | + unsigned int size; |
| 182 | + unsigned int header_crc; |
| 183 | + unsigned int reserved; |
| 184 | + unsigned long long current_lba; |
| 185 | + unsigned long long backup_lba; |
| 186 | + unsigned long long first_lba; |
| 187 | + unsigned long long last_lba; |
| 188 | + struct efi_guid disk_uuid; |
| 189 | + /* starting LBA of array of partition entries */ |
| 190 | + unsigned long long part_lba; |
| 191 | + /* number of partition entries in array */ |
| 192 | + unsigned int list_num; |
| 193 | + /* size of a single partition entry (usually 128) */ |
| 194 | + unsigned int part_size; |
| 195 | + unsigned int part_crc; |
| 196 | +} gpt_header_t; |
| 197 | + |
| 198 | +int parse_gpt_entry(gpt_entry_t *gpt_entry, partition_entry_t *entry); |
| 199 | + |
| 200 | +#endif /* GPT_H */ |
| 201 | diff --git a/platform/ext/target/arm/corstone1000/partition/mbr.h b/platform/ext/target/arm/corstone1000/partition/mbr.h |
| 202 | new file mode 100644 |
| 203 | index 0000000000..e77f367016 |
| 204 | --- /dev/null |
| 205 | +++ b/platform/ext/target/arm/corstone1000/partition/mbr.h |
| 206 | @@ -0,0 +1,29 @@ |
| 207 | +/* |
| 208 | + * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. |
| 209 | + * |
| 210 | + * SPDX-License-Identifier: BSD-3-Clause |
| 211 | + */ |
| 212 | + |
| 213 | +#ifndef MBR_H |
| 214 | +#define MBR_H |
| 215 | + |
| 216 | +#define MBR_OFFSET 0 |
| 217 | + |
| 218 | +#define MBR_PRIMARY_ENTRY_OFFSET 0x1be |
| 219 | +#define MBR_PRIMARY_ENTRY_SIZE 0x10 |
| 220 | +#define MBR_PRIMARY_ENTRY_NUMBER 4 |
| 221 | +#define MBR_CHS_ADDRESS_LEN 3 |
| 222 | + |
| 223 | +#define MBR_SIGNATURE_FIRST 0x55 |
| 224 | +#define MBR_SIGNATURE_SECOND 0xAA |
| 225 | + |
| 226 | +typedef struct mbr_entry { |
| 227 | + unsigned char status; |
| 228 | + unsigned char first_sector[MBR_CHS_ADDRESS_LEN]; |
| 229 | + unsigned char type; |
| 230 | + unsigned char last_sector[MBR_CHS_ADDRESS_LEN]; |
| 231 | + unsigned int first_lba; |
| 232 | + unsigned int sector_nums; |
| 233 | +} mbr_entry_t; |
| 234 | + |
| 235 | +#endif /* MBR_H */ |
| 236 | diff --git a/platform/ext/target/arm/corstone1000/partition/partition.c b/platform/ext/target/arm/corstone1000/partition/partition.c |
| 237 | new file mode 100644 |
| 238 | index 0000000000..afc6aa1c5c |
| 239 | --- /dev/null |
| 240 | +++ b/platform/ext/target/arm/corstone1000/partition/partition.c |
| 241 | @@ -0,0 +1,310 @@ |
| 242 | +/* |
| 243 | + * Copyright (c) 2016-2022, ARM Limited and Contributors. All rights reserved. |
| 244 | + * |
| 245 | + * SPDX-License-Identifier: BSD-3-Clause |
| 246 | + */ |
| 247 | + |
| 248 | +#include "partition.h" |
| 249 | + |
| 250 | +#include <assert.h> |
| 251 | +#include <errno.h> |
| 252 | +#include <inttypes.h> |
| 253 | +#include <stdio.h> |
| 254 | +#include <string.h> |
| 255 | + |
| 256 | +#include "efi.h" |
| 257 | +#include "gpt.h" |
| 258 | +#include "mbr.h" |
| 259 | + |
| 260 | +#include "io_storage.h" |
| 261 | +#include "platform.h" |
| 262 | +#include "soft_crc.h" |
| 263 | + |
| 264 | +#define PLAT_LOG_MODULE_NAME "partition" |
| 265 | +#include "platform_log.h" |
| 266 | + |
| 267 | +static uint8_t mbr_sector[PLAT_PARTITION_BLOCK_SIZE]; |
| 268 | +static partition_entry_list_t list; |
| 269 | + |
| 270 | +#if LOG_LEVEL >= LOG_LEVEL_DEBUG |
| 271 | +static void dump_entries(int num) { |
| 272 | + char name[EFI_NAMELEN]; |
| 273 | + int i, j, len; |
| 274 | + |
| 275 | + VERBOSE("Partition table with %d entries:", num); |
| 276 | + for (i = 0; i < num; i++) { |
| 277 | + len = snprintf(name, EFI_NAMELEN, "%s", list.list[i].name); |
| 278 | + for (j = 0; j < EFI_NAMELEN - len - 1; j++) { |
| 279 | + name[len + j] = ' '; |
| 280 | + } |
| 281 | + name[EFI_NAMELEN - 1] = '\0'; |
| 282 | + VERBOSE("%d: %s %x%x %d", i + 1, name, |
| 283 | + (uint32_t)(list.list[i].start >> 32), |
| 284 | + (uint32_t)list.list[i].start, |
| 285 | + (uint32_t)(list.list[i].start + list.list[i].length - 4)); |
| 286 | + } |
| 287 | +} |
| 288 | +#else |
| 289 | +#define dump_entries(num) ((void)num) |
| 290 | +#endif |
| 291 | + |
| 292 | +/* |
| 293 | + * Load the first sector that carries MBR header. |
| 294 | + * The MBR boot signature should be always valid whether it's MBR or GPT. |
| 295 | + */ |
| 296 | +static int load_mbr_header(uintptr_t image_handle, mbr_entry_t *mbr_entry) { |
| 297 | + size_t bytes_read; |
| 298 | + uintptr_t offset; |
| 299 | + int result; |
| 300 | + |
| 301 | + assert(mbr_entry != NULL); |
| 302 | + /* MBR partition table is in LBA0. */ |
| 303 | + result = io_seek(image_handle, IO_SEEK_SET, MBR_OFFSET); |
| 304 | + if (result != 0) { |
| 305 | + WARN("Failed to seek (%i)\n", result); |
| 306 | + return result; |
| 307 | + } |
| 308 | + result = io_read(image_handle, (uintptr_t)&mbr_sector, |
| 309 | + PLAT_PARTITION_BLOCK_SIZE, &bytes_read); |
| 310 | + if (result != 0) { |
| 311 | + WARN("Failed to read data (%i)\n", result); |
| 312 | + return result; |
| 313 | + } |
| 314 | + |
| 315 | + /* Check MBR boot signature. */ |
| 316 | + if ((mbr_sector[LEGACY_PARTITION_BLOCK_SIZE - 2] != MBR_SIGNATURE_FIRST) || |
| 317 | + (mbr_sector[LEGACY_PARTITION_BLOCK_SIZE - 1] != MBR_SIGNATURE_SECOND)) { |
| 318 | + ERROR("MBR signature isn't correct"); |
| 319 | + return -ENOENT; |
| 320 | + } |
| 321 | + offset = (uintptr_t)&mbr_sector + MBR_PRIMARY_ENTRY_OFFSET; |
| 322 | + memcpy(mbr_entry, (void *)offset, sizeof(mbr_entry_t)); |
| 323 | + return 0; |
| 324 | +} |
| 325 | + |
| 326 | +/* |
| 327 | + * Load GPT header and check the GPT signature and header CRC. |
| 328 | + * If partition numbers could be found, check & update it. |
| 329 | + */ |
| 330 | +static int load_gpt_header(uintptr_t image_handle) { |
| 331 | + gpt_header_t header; |
| 332 | + size_t bytes_read; |
| 333 | + int result; |
| 334 | + uint32_t header_crc, calc_crc; |
| 335 | + |
| 336 | + result = io_seek(image_handle, IO_SEEK_SET, GPT_HEADER_OFFSET); |
| 337 | + if (result != 0) { |
| 338 | + return result; |
| 339 | + } |
| 340 | + result = io_read(image_handle, (uintptr_t)&header, sizeof(gpt_header_t), |
| 341 | + &bytes_read); |
| 342 | + if ((result != 0) || (sizeof(gpt_header_t) != bytes_read)) { |
| 343 | + return result; |
| 344 | + } |
| 345 | + if (memcmp(header.signature, GPT_SIGNATURE, sizeof(header.signature)) != |
| 346 | + 0) { |
| 347 | + return -EINVAL; |
| 348 | + } |
| 349 | + |
| 350 | + /* |
| 351 | + * UEFI Spec 2.8 March 2019 Page 119: HeaderCRC32 value is |
| 352 | + * computed by setting this field to 0, and computing the |
| 353 | + * 32-bit CRC for HeaderSize bytes. |
| 354 | + */ |
| 355 | + header_crc = header.header_crc; |
| 356 | + header.header_crc = 0U; |
| 357 | + |
| 358 | + calc_crc = crc32((uint8_t *)&header, DEFAULT_GPT_HEADER_SIZE); |
| 359 | + if (header_crc != calc_crc) { |
| 360 | + ERROR("Invalid GPT Header CRC: Expected 0x%x but got 0x%x.\n", |
| 361 | + header_crc, calc_crc); |
| 362 | + return -EINVAL; |
| 363 | + } |
| 364 | + |
| 365 | + header.header_crc = header_crc; |
| 366 | + |
| 367 | + /* partition numbers can't exceed PLAT_PARTITION_MAX_ENTRIES */ |
| 368 | + list.entry_count = header.list_num; |
| 369 | + if (list.entry_count > PLAT_PARTITION_MAX_ENTRIES) { |
| 370 | + list.entry_count = PLAT_PARTITION_MAX_ENTRIES; |
| 371 | + } |
| 372 | + return 0; |
| 373 | +} |
| 374 | + |
| 375 | +static int load_mbr_entry(uintptr_t image_handle, mbr_entry_t *mbr_entry, |
| 376 | + int part_number) { |
| 377 | + size_t bytes_read; |
| 378 | + uintptr_t offset; |
| 379 | + int result; |
| 380 | + |
| 381 | + assert(mbr_entry != NULL); |
| 382 | + /* MBR partition table is in LBA0. */ |
| 383 | + result = io_seek(image_handle, IO_SEEK_SET, MBR_OFFSET); |
| 384 | + if (result != 0) { |
| 385 | + WARN("Failed to seek (%i)\n", result); |
| 386 | + return result; |
| 387 | + } |
| 388 | + result = io_read(image_handle, (uintptr_t)&mbr_sector, |
| 389 | + PLAT_PARTITION_BLOCK_SIZE, &bytes_read); |
| 390 | + if (result != 0) { |
| 391 | + WARN("Failed to read data (%i)\n", result); |
| 392 | + return result; |
| 393 | + } |
| 394 | + |
| 395 | + /* Check MBR boot signature. */ |
| 396 | + if ((mbr_sector[LEGACY_PARTITION_BLOCK_SIZE - 2] != MBR_SIGNATURE_FIRST) || |
| 397 | + (mbr_sector[LEGACY_PARTITION_BLOCK_SIZE - 1] != MBR_SIGNATURE_SECOND)) { |
| 398 | + return -ENOENT; |
| 399 | + } |
| 400 | + offset = (uintptr_t)&mbr_sector + MBR_PRIMARY_ENTRY_OFFSET + |
| 401 | + MBR_PRIMARY_ENTRY_SIZE * part_number; |
| 402 | + memcpy(mbr_entry, (void *)offset, sizeof(mbr_entry_t)); |
| 403 | + |
| 404 | + return 0; |
| 405 | +} |
| 406 | + |
| 407 | +static int load_mbr_entries(uintptr_t image_handle) { |
| 408 | + mbr_entry_t mbr_entry; |
| 409 | + int i; |
| 410 | + |
| 411 | + list.entry_count = MBR_PRIMARY_ENTRY_NUMBER; |
| 412 | + |
| 413 | + for (i = 0; i < list.entry_count; i++) { |
| 414 | + load_mbr_entry(image_handle, &mbr_entry, i); |
| 415 | + list.list[i].start = mbr_entry.first_lba * 512; |
| 416 | + list.list[i].length = mbr_entry.sector_nums * 512; |
| 417 | + list.list[i].name[0] = mbr_entry.type; |
| 418 | + } |
| 419 | + |
| 420 | + return 0; |
| 421 | +} |
| 422 | + |
| 423 | +static int load_gpt_entry(uintptr_t image_handle, gpt_entry_t *entry) { |
| 424 | + size_t bytes_read; |
| 425 | + int result; |
| 426 | + |
| 427 | + assert(entry != NULL); |
| 428 | + result = io_read(image_handle, (uintptr_t)entry, sizeof(gpt_entry_t), |
| 429 | + &bytes_read); |
| 430 | + if (sizeof(gpt_entry_t) != bytes_read) return -EINVAL; |
| 431 | + return result; |
| 432 | +} |
| 433 | + |
| 434 | +static int verify_partition_gpt(uintptr_t image_handle) { |
| 435 | + gpt_entry_t entry; |
| 436 | + int result, i; |
| 437 | + |
| 438 | + for (i = 0; i < list.entry_count; i++) { |
| 439 | + result = load_gpt_entry(image_handle, &entry); |
| 440 | + assert(result == 0); |
| 441 | + if (result != 0) { |
| 442 | + break; |
| 443 | + } |
| 444 | + result = parse_gpt_entry(&entry, &list.list[i]); |
| 445 | + if (result != 0) { |
| 446 | + break; |
| 447 | + } |
| 448 | + } |
| 449 | + if (i == 0) { |
| 450 | + return -EINVAL; |
| 451 | + } |
| 452 | + /* |
| 453 | + * Only records the valid partition number that is loaded from |
| 454 | + * partition table. |
| 455 | + */ |
| 456 | + list.entry_count = i; |
| 457 | + dump_entries(list.entry_count); |
| 458 | + |
| 459 | + return 0; |
| 460 | +} |
| 461 | + |
| 462 | +int load_partition_table(unsigned int image_id) { |
| 463 | + uintptr_t dev_handle, image_handle, image_spec = 0; |
| 464 | + mbr_entry_t mbr_entry; |
| 465 | + int result; |
| 466 | + |
| 467 | + result = plat_get_image_source(image_id, &dev_handle, &image_spec); |
| 468 | + if (result != 0) { |
| 469 | + WARN("Failed to obtain reference to image id=%u (%i)\n", image_id, |
| 470 | + result); |
| 471 | + return result; |
| 472 | + } |
| 473 | + |
| 474 | + result = io_open(dev_handle, image_spec, &image_handle); |
| 475 | + if (result != 0) { |
| 476 | + WARN("Failed to open image id=%u (%i)\n", image_id, result); |
| 477 | + return result; |
| 478 | + } |
| 479 | + |
| 480 | + result = load_mbr_header(image_handle, &mbr_entry); |
| 481 | + if (result != 0) { |
| 482 | + ERROR("Loading mbr header failed with image id=%u (%i)\n", image_id, |
| 483 | + result); |
| 484 | + return result; |
| 485 | + } |
| 486 | + if (mbr_entry.type == PARTITION_TYPE_GPT) { |
| 487 | + INFO("Loading gpt header"); |
| 488 | + result = load_gpt_header(image_handle); |
| 489 | + assert(result == 0); |
| 490 | + if (result != 0) { |
| 491 | + ERROR("Failed load gpt header! %i", result); |
| 492 | + goto load_partition_table_exit; |
| 493 | + } |
| 494 | + result = io_seek(image_handle, IO_SEEK_SET, GPT_ENTRY_OFFSET); |
| 495 | + assert(result == 0); |
| 496 | + if (result != 0) { |
| 497 | + ERROR("Failed seek gpt header! %i", result); |
| 498 | + goto load_partition_table_exit; |
| 499 | + } |
| 500 | + result = verify_partition_gpt(image_handle); |
| 501 | + if (result != 0) { |
| 502 | + ERROR("Failed verify gpt partition %i", result); |
| 503 | + goto load_partition_table_exit; |
| 504 | + } |
| 505 | + } else { |
| 506 | + result = load_mbr_entries(image_handle); |
| 507 | + } |
| 508 | + |
| 509 | +load_partition_table_exit: |
| 510 | + io_close(image_handle); |
| 511 | + return result; |
| 512 | +} |
| 513 | + |
| 514 | +const partition_entry_t *get_partition_entry(const char *name) { |
| 515 | + int i; |
| 516 | + |
| 517 | + for (i = 0; i < list.entry_count; i++) { |
| 518 | + if (strcmp(name, list.list[i].name) == 0) { |
| 519 | + return &list.list[i]; |
| 520 | + } |
| 521 | + } |
| 522 | + return NULL; |
| 523 | +} |
| 524 | + |
| 525 | +const partition_entry_t *get_partition_entry_by_type(const uuid_t *type_uuid) { |
| 526 | + int i; |
| 527 | + |
| 528 | + for (i = 0; i < list.entry_count; i++) { |
| 529 | + if (guidcmp(type_uuid, &list.list[i].type_guid) == 0) { |
| 530 | + return &list.list[i]; |
| 531 | + } |
| 532 | + } |
| 533 | + |
| 534 | + return NULL; |
| 535 | +} |
| 536 | + |
| 537 | +const partition_entry_t *get_partition_entry_by_uuid(const uuid_t *part_uuid) { |
| 538 | + int i; |
| 539 | + |
| 540 | + for (i = 0; i < list.entry_count; i++) { |
| 541 | + if (guidcmp(part_uuid, &list.list[i].part_guid) == 0) { |
| 542 | + return &list.list[i]; |
| 543 | + } |
| 544 | + } |
| 545 | + |
| 546 | + return NULL; |
| 547 | +} |
| 548 | + |
| 549 | +const partition_entry_list_t *get_partition_entry_list(void) { return &list; } |
| 550 | + |
| 551 | +void partition_init(unsigned int image_id) { load_partition_table(image_id); } |
| 552 | diff --git a/platform/ext/target/arm/corstone1000/partition/partition.h b/platform/ext/target/arm/corstone1000/partition/partition.h |
| 553 | new file mode 100644 |
| 554 | index 0000000000..54af47aca4 |
| 555 | --- /dev/null |
| 556 | +++ b/platform/ext/target/arm/corstone1000/partition/partition.h |
| 557 | @@ -0,0 +1,47 @@ |
| 558 | +/* |
| 559 | + * Copyright (c) 2016-2022, ARM Limited and Contributors. All rights reserved. |
| 560 | + * |
| 561 | + * SPDX-License-Identifier: BSD-3-Clause |
| 562 | + */ |
| 563 | + |
| 564 | +#ifndef PARTITION_H |
| 565 | +#define PARTITION_H |
| 566 | + |
| 567 | +#include <stdint.h> |
| 568 | + |
| 569 | +#include "efi.h" |
| 570 | +#include "uuid.h" |
| 571 | + |
| 572 | +#if !PLAT_PARTITION_MAX_ENTRIES |
| 573 | +#define PLAT_PARTITION_MAX_ENTRIES 16 |
| 574 | +#endif /* PLAT_PARTITION_MAX_ENTRIES */ |
| 575 | + |
| 576 | +#if !PLAT_PARTITION_BLOCK_SIZE |
| 577 | +#define PLAT_PARTITION_BLOCK_SIZE 512 |
| 578 | +#endif /* PLAT_PARTITION_BLOCK_SIZE */ |
| 579 | + |
| 580 | +#define LEGACY_PARTITION_BLOCK_SIZE 512 |
| 581 | + |
| 582 | +#define DEFAULT_GPT_HEADER_SIZE 92 |
| 583 | + |
| 584 | +typedef struct partition_entry { |
| 585 | + uint64_t start; |
| 586 | + uint64_t length; |
| 587 | + char name[EFI_NAMELEN]; |
| 588 | + struct efi_guid part_guid; |
| 589 | + struct efi_guid type_guid; |
| 590 | +} partition_entry_t; |
| 591 | + |
| 592 | +typedef struct partition_entry_list { |
| 593 | + partition_entry_t list[PLAT_PARTITION_MAX_ENTRIES]; |
| 594 | + int entry_count; |
| 595 | +} partition_entry_list_t; |
| 596 | + |
| 597 | +int load_partition_table(unsigned int image_id); |
| 598 | +const partition_entry_t *get_partition_entry(const char *name); |
| 599 | +const partition_entry_t *get_partition_entry_by_type(const uuid_t *type_guid); |
| 600 | +const partition_entry_t *get_partition_entry_by_uuid(const uuid_t *part_uuid); |
| 601 | +const partition_entry_list_t *get_partition_entry_list(void); |
| 602 | +void partition_init(unsigned int image_id); |
| 603 | + |
| 604 | +#endif /* PARTITION_H */ |
| 605 | diff --git a/platform/ext/target/arm/corstone1000/partition/uuid.h b/platform/ext/target/arm/corstone1000/partition/uuid.h |
| 606 | new file mode 100644 |
| 607 | index 0000000000..06fec5a3c0 |
| 608 | --- /dev/null |
| 609 | +++ b/platform/ext/target/arm/corstone1000/partition/uuid.h |
| 610 | @@ -0,0 +1,76 @@ |
| 611 | +/*- |
| 612 | + * Copyright (c) 2002 Marcel Moolenaar |
| 613 | + * All rights reserved. |
| 614 | + * |
| 615 | + * Redistribution and use in source and binary forms, with or without |
| 616 | + * modification, are permitted provided that the following conditions |
| 617 | + * are met: |
| 618 | + * |
| 619 | + * 1. Redistributions of source code must retain the above copyright |
| 620 | + * notice, this list of conditions and the following disclaimer. |
| 621 | + * 2. Redistributions in binary form must reproduce the above copyright |
| 622 | + * notice, this list of conditions and the following disclaimer in the |
| 623 | + * documentation and/or other materials provided with the distribution. |
| 624 | + * |
| 625 | + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 626 | + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 627 | + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 628 | + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 629 | + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 630 | + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 631 | + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 632 | + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 633 | + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 634 | + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 635 | + * |
| 636 | + * $FreeBSD$ |
| 637 | + */ |
| 638 | + |
| 639 | +/* |
| 640 | + * Portions copyright (c) 2014-2020, ARM Limited and Contributors. |
| 641 | + * All rights reserved. |
| 642 | + */ |
| 643 | + |
| 644 | +#ifndef UUID_H |
| 645 | +#define UUID_H |
| 646 | + |
| 647 | +#include <stdint.h> |
| 648 | + |
| 649 | +/* Length of a node address (an IEEE 802 address). */ |
| 650 | +#define _UUID_NODE_LEN 6 |
| 651 | + |
| 652 | +/* Length of UUID string including dashes. */ |
| 653 | +#define _UUID_STR_LEN 36 |
| 654 | + |
| 655 | +/* |
| 656 | + * See also: |
| 657 | + * http://www.opengroup.org/dce/info/draft-leach-uuids-guids-01.txt |
| 658 | + * http://www.opengroup.org/onlinepubs/009629399/apdxa.htm |
| 659 | + * |
| 660 | + * A DCE 1.1 compatible source representation of UUIDs. |
| 661 | + */ |
| 662 | +struct uuid { |
| 663 | + uint8_t time_low[4]; |
| 664 | + uint8_t time_mid[2]; |
| 665 | + uint8_t time_hi_and_version[2]; |
| 666 | + uint8_t clock_seq_hi_and_reserved; |
| 667 | + uint8_t clock_seq_low; |
| 668 | + uint8_t node[_UUID_NODE_LEN]; |
| 669 | +}; |
| 670 | + |
| 671 | +struct efi_guid { |
| 672 | + uint32_t time_low; |
| 673 | + uint16_t time_mid; |
| 674 | + uint16_t time_hi_and_version; |
| 675 | + uint8_t clock_seq_and_node[8]; |
| 676 | +}; |
| 677 | + |
| 678 | +union uuid_helper_t { |
| 679 | + struct uuid uuid_struct; |
| 680 | + struct efi_guid efi_guid; |
| 681 | +}; |
| 682 | + |
| 683 | +/* XXX namespace pollution? */ |
| 684 | +typedef struct uuid uuid_t; |
| 685 | + |
| 686 | +#endif /* UUID_H */ |
| 687 | diff --git a/platform/ext/target/arm/corstone1000/platform.c b/platform/ext/target/arm/corstone1000/platform.c |
| 688 | new file mode 100644 |
| 689 | index 0000000000..908b66b7ac |
| 690 | --- /dev/null |
| 691 | +++ b/platform/ext/target/arm/corstone1000/platform.c |
| 692 | @@ -0,0 +1,20 @@ |
| 693 | +/* |
| 694 | + * Copyright (c) 2023, Arm Limited. All rights reserved. |
| 695 | + * |
| 696 | + * SPDX-License-Identifier: BSD-3-Clause |
| 697 | + * |
| 698 | + */ |
| 699 | + |
| 700 | +#include "platform.h" |
| 701 | + |
| 702 | +#include <stdint.h> |
| 703 | + |
| 704 | +/* Return an IO device handle and specification which can be used to access |
| 705 | + * an image. This has to be implemented for the GPT parser. */ |
| 706 | +int32_t plat_get_image_source(unsigned int image_id, uintptr_t *dev_handle, |
| 707 | + uintptr_t *image_spec) { |
| 708 | + (void)image_id; |
| 709 | + *dev_handle = NULL; |
| 710 | + *image_spec = NULL; |
| 711 | + return 0; |
| 712 | +} |
| 713 | diff --git a/platform/ext/target/arm/corstone1000/platform.h b/platform/ext/target/arm/corstone1000/platform.h |
| 714 | new file mode 100644 |
| 715 | index 0000000000..250f9cd9f5 |
| 716 | --- /dev/null |
| 717 | +++ b/platform/ext/target/arm/corstone1000/platform.h |
| 718 | @@ -0,0 +1,14 @@ |
| 719 | +/* |
| 720 | + * Copyright (c) 2023, Arm Limited. All rights reserved. |
| 721 | + * |
| 722 | + * SPDX-License-Identifier: BSD-3-Clause |
| 723 | + * |
| 724 | + */ |
| 725 | + |
| 726 | +#ifndef __PLATFORM_H__ |
| 727 | +#define __PLATFORM_H__ |
| 728 | + |
| 729 | +int32_t plat_get_image_source(unsigned int image_id, uintptr_t *dev_handle, |
| 730 | + uintptr_t *image_spec); |
| 731 | + |
| 732 | +#endif /*__PLATFORM_H__*/ |
| 733 | -- |
| 734 | 2.25.1 |
| 735 | |