1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * SPDX-License-Identifier: BSD-2-Clause 5 */ 6 7 #include <android_bootloader.h> 8 #include <android_bootloader_message.h> 9 #include <android_avb/avb_slot_verify.h> 10 #include <android_avb/avb_ops_user.h> 11 #include <android_avb/rk_avb_ops_user.h> 12 #include <android_image.h> 13 #include <android_ab.h> 14 #include <bootm.h> 15 #include <asm/arch/hotkey.h> 16 #include <cli.h> 17 #include <common.h> 18 #include <dt_table.h> 19 #include <image-android-dt.h> 20 #include <malloc.h> 21 #include <mp_boot.h> 22 #include <fdt_support.h> 23 #include <fs.h> 24 #include <boot_rkimg.h> 25 #include <attestation_key.h> 26 #include <keymaster.h> 27 #include <linux/libfdt_env.h> 28 #include <optee_include/OpteeClientInterface.h> 29 #include <bidram.h> 30 #include <console.h> 31 #include <sysmem.h> 32 33 DECLARE_GLOBAL_DATA_PTR; 34 35 int android_bootloader_message_load( 36 struct blk_desc *dev_desc, 37 const disk_partition_t *part_info, 38 struct android_bootloader_message *message) 39 { 40 ulong message_blocks = sizeof(struct android_bootloader_message) / 41 part_info->blksz; 42 if (message_blocks > part_info->size) { 43 printf("misc partition too small.\n"); 44 return -1; 45 } 46 47 if (blk_dread(dev_desc, part_info->start + android_bcb_msg_sector_offset(), 48 message_blocks, message) != 49 message_blocks) { 50 printf("Could not read from misc partition\n"); 51 return -1; 52 } 53 debug("ANDROID: Loaded BCB, %lu blocks.\n", message_blocks); 54 return 0; 55 } 56 57 static int android_bootloader_message_write( 58 struct blk_desc *dev_desc, 59 const disk_partition_t *part_info, 60 struct android_bootloader_message *message) 61 { 62 ulong message_blocks = sizeof(struct android_bootloader_message) / 63 part_info->blksz + android_bcb_msg_sector_offset(); 64 65 if (message_blocks > part_info->size) { 66 printf("misc partition too small.\n"); 67 return -1; 68 } 69 70 if (blk_dwrite(dev_desc, part_info->start, message_blocks, message) != 71 message_blocks) { 72 printf("Could not write to misc partition\n"); 73 return -1; 74 } 75 debug("ANDROID: Wrote new BCB, %lu blocks.\n", message_blocks); 76 return 0; 77 } 78 79 static enum android_boot_mode android_bootloader_load_and_clear_mode( 80 struct blk_desc *dev_desc, 81 const disk_partition_t *misc_part_info) 82 { 83 struct android_bootloader_message bcb; 84 85 #ifdef CONFIG_FASTBOOT 86 char *bootloader_str; 87 88 /* Check for message from bootloader stored in RAM from a previous boot. 89 */ 90 bootloader_str = (char *)CONFIG_FASTBOOT_BUF_ADDR; 91 if (!strcmp("reboot-bootloader", bootloader_str)) { 92 bootloader_str[0] = '\0'; 93 return ANDROID_BOOT_MODE_BOOTLOADER; 94 } 95 #endif 96 97 /* Check and update the BCB message if needed. */ 98 if (android_bootloader_message_load(dev_desc, misc_part_info, &bcb) < 99 0) { 100 printf("WARNING: Unable to load the BCB.\n"); 101 return ANDROID_BOOT_MODE_NORMAL; 102 } 103 104 if (!strcmp("bootonce-bootloader", bcb.command)) { 105 /* Erase the message in the BCB since this value should be used 106 * only once. 107 */ 108 memset(bcb.command, 0, sizeof(bcb.command)); 109 android_bootloader_message_write(dev_desc, misc_part_info, 110 &bcb); 111 return ANDROID_BOOT_MODE_BOOTLOADER; 112 } 113 114 if (!strcmp("boot-recovery", bcb.command)) 115 return ANDROID_BOOT_MODE_RECOVERY; 116 117 if (!strcmp("boot-fastboot", bcb.command)) 118 return ANDROID_BOOT_MODE_RECOVERY; 119 120 return ANDROID_BOOT_MODE_NORMAL; 121 } 122 123 int android_bcb_write(char *cmd) 124 { 125 struct android_bootloader_message message = {0}; 126 disk_partition_t part_info; 127 struct blk_desc *dev_desc; 128 int ret; 129 130 if (!cmd) 131 return -ENOMEM; 132 133 if (strlen(cmd) >= 32) 134 return -ENOMEM; 135 136 dev_desc = rockchip_get_bootdev(); 137 if (!dev_desc) { 138 printf("%s: dev_desc is NULL!\n", __func__); 139 return -ENODEV; 140 } 141 142 ret = part_get_info_by_name(dev_desc, ANDROID_PARTITION_MISC, &part_info); 143 if (ret < 0) { 144 printf("%s: Could not found misc partition, just run recovery\n", 145 __func__); 146 return -ENODEV; 147 } 148 149 strcpy(message.command, cmd); 150 return android_bootloader_message_write(dev_desc, &part_info, &message); 151 } 152 153 /** 154 * Return the reboot reason string for the passed boot mode. 155 * 156 * @param mode The Android Boot mode. 157 * @return a pointer to the reboot reason string for mode. 158 */ 159 static const char *android_boot_mode_str(enum android_boot_mode mode) 160 { 161 switch (mode) { 162 case ANDROID_BOOT_MODE_NORMAL: 163 return "(none)"; 164 case ANDROID_BOOT_MODE_RECOVERY: 165 return "recovery"; 166 case ANDROID_BOOT_MODE_BOOTLOADER: 167 return "bootloader"; 168 } 169 return NULL; 170 } 171 172 static int android_bootloader_boot_bootloader(void) 173 { 174 const char *fastboot_cmd = env_get("fastbootcmd"); 175 176 if (fastboot_cmd == NULL) { 177 printf("fastboot_cmd is null, run default fastboot_cmd!\n"); 178 fastboot_cmd = "fastboot usb 0"; 179 } 180 181 return run_command(fastboot_cmd, CMD_FLAG_ENV); 182 } 183 184 #ifdef CONFIG_SUPPORT_OEM_DTB 185 static int android_bootloader_get_fdt(const char *part_name, 186 const char *load_file_name) 187 { 188 struct blk_desc *dev_desc; 189 disk_partition_t part_info; 190 char *fdt_addr = NULL; 191 char dev_part[3] = {0}; 192 loff_t bytes = 0; 193 loff_t pos = 0; 194 loff_t len_read; 195 unsigned long addr = 0; 196 int part_num = -1; 197 int ret; 198 199 dev_desc = rockchip_get_bootdev(); 200 if (!dev_desc) { 201 printf("%s: dev_desc is NULL!\n", __func__); 202 return -1; 203 } 204 205 part_num = part_get_info_by_name(dev_desc, part_name, &part_info); 206 if (part_num < 0) { 207 printf("ANDROID: Could not find partition \"%s\"\n", part_name); 208 return -1; 209 } 210 211 snprintf(dev_part, ARRAY_SIZE(dev_part), ":%x", part_num); 212 if (fs_set_blk_dev_with_part(dev_desc, part_num)) 213 return -1; 214 215 fdt_addr = env_get("fdt_addr_r"); 216 if (!fdt_addr) { 217 printf("ANDROID: No Found FDT Load Address.\n"); 218 return -1; 219 } 220 addr = simple_strtoul(fdt_addr, NULL, 16); 221 222 ret = fs_read(load_file_name, addr, pos, bytes, &len_read); 223 if (ret < 0) 224 return -1; 225 226 return 0; 227 } 228 #endif 229 230 /* 231 * Test on RK3308 AARCH64 mode (Cortex A35 816 MHZ) boot with eMMC: 232 * 233 * |-------------------------------------------------------------------| 234 * | Format | Size(Byte) | Ratio | Decomp time(ms) | Boot time(ms) | 235 * |-------------------------------------------------------------------| 236 * | Image | 7720968 | | | 488 | 237 * |-------------------------------------------------------------------| 238 * | Image.lz4 | 4119448 | 53% | 59 | 455 | 239 * |-------------------------------------------------------------------| 240 * | Image.lzo | 3858322 | 49% | 141 | 536 | 241 * |-------------------------------------------------------------------| 242 * | Image.gz | 3529108 | 45% | 222 | 609 | 243 * |-------------------------------------------------------------------| 244 * | Image.bz2 | 3295914 | 42% | 2940 | | 245 * |-------------------------------------------------------------------| 246 * | Image.lzma| 2683750 | 34% | | | 247 * |-------------------------------------------------------------------| 248 */ 249 static int sysmem_alloc_uncomp_kernel(ulong andr_hdr, 250 ulong uncomp_kaddr, u32 comp) 251 { 252 struct andr_img_hdr *hdr = (struct andr_img_hdr *)andr_hdr; 253 ulong ksize, kaddr; 254 255 if (comp != IH_COMP_NONE) { 256 /* Release compressed sysmem */ 257 kaddr = env_get_hex("kernel_addr_c", 0); 258 if (!kaddr) 259 kaddr = env_get_hex("kernel_addr_r", 0); 260 kaddr -= hdr->page_size; 261 if (sysmem_free((phys_addr_t)kaddr)) 262 return -EINVAL; 263 #ifdef CONFIG_SKIP_RELOCATE_UBOOT 264 sysmem_free(CONFIG_SYS_TEXT_BASE); 265 #endif 266 /* 267 * Use smaller Ratio to get larger estimated uncompress 268 * kernel size. 269 */ 270 if (comp == IH_COMP_ZIMAGE) 271 ksize = hdr->kernel_size * 100 / 45; 272 else if (comp == IH_COMP_LZ4) 273 ksize = hdr->kernel_size * 100 / 50; 274 else if (comp == IH_COMP_LZO) 275 ksize = hdr->kernel_size * 100 / 45; 276 else if (comp == IH_COMP_GZIP) 277 ksize = hdr->kernel_size * 100 / 40; 278 else if (comp == IH_COMP_BZIP2) 279 ksize = hdr->kernel_size * 100 / 40; 280 else if (comp == IH_COMP_LZMA) 281 ksize = hdr->kernel_size * 100 / 30; 282 else 283 ksize = hdr->kernel_size; 284 285 kaddr = uncomp_kaddr; 286 ksize = ALIGN(ksize, 512); 287 if (!sysmem_alloc_base(MEM_UNCOMP_KERNEL, 288 (phys_addr_t)kaddr, ksize)) 289 return -ENOMEM; 290 } 291 292 return 0; 293 } 294 295 int android_bootloader_boot_kernel(unsigned long kernel_address) 296 { 297 char *kernel_addr_r = env_get("kernel_addr_r"); 298 char *kernel_addr_c = env_get("kernel_addr_c"); 299 char *fdt_addr = env_get("fdt_addr_r"); 300 char kernel_addr_str[12]; 301 char comp_str[32] = {0}; 302 ulong comp_type; 303 const char *comp_name[] = { 304 [IH_COMP_NONE] = "IMAGE", 305 [IH_COMP_GZIP] = "GZIP", 306 [IH_COMP_BZIP2] = "BZIP2", 307 [IH_COMP_LZMA] = "LZMA", 308 [IH_COMP_LZO] = "LZO", 309 [IH_COMP_LZ4] = "LZ4", 310 [IH_COMP_ZIMAGE]= "ZIMAGE", 311 }; 312 char *bootm_args[] = { 313 kernel_addr_str, kernel_addr_str, fdt_addr, NULL }; 314 315 comp_type = env_get_ulong("os_comp", 10, 0); 316 sprintf(kernel_addr_str, "0x%08lx", kernel_address); 317 318 if (comp_type != IH_COMP_NONE) { 319 if (comp_type == IH_COMP_ZIMAGE && 320 kernel_addr_r && !kernel_addr_c) { 321 kernel_addr_c = kernel_addr_r; 322 kernel_addr_r = __stringify(CONFIG_SYS_SDRAM_BASE); 323 } 324 snprintf(comp_str, 32, "%s%s%s", 325 "(Uncompress to ", kernel_addr_r, ")"); 326 } 327 328 printf("Booting %s kernel at %s%s with fdt at %s...\n\n\n", 329 comp_name[comp_type], 330 comp_type != IH_COMP_NONE ? kernel_addr_c : kernel_addr_r, 331 comp_str, fdt_addr); 332 333 hotkey_run(HK_SYSMEM); 334 335 /* 336 * Check whether there is enough space for uncompress kernel, 337 * Actually, here only gives a sysmem warning message when failed 338 * but never return -1. 339 */ 340 if (sysmem_alloc_uncomp_kernel(kernel_address, 341 simple_strtoul(kernel_addr_r, NULL, 16), 342 comp_type)) 343 return -1; 344 345 return do_bootm_states(NULL, 0, ARRAY_SIZE(bootm_args), bootm_args, 346 BOOTM_STATE_START | 347 BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER | 348 BOOTM_STATE_LOADOS | 349 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH 350 BOOTM_STATE_RAMDISK | 351 #endif 352 BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO | 353 BOOTM_STATE_OS_GO, &images, 1); 354 } 355 356 static char *strjoin(const char **chunks, char separator) 357 { 358 int len, joined_len = 0; 359 char *ret, *current; 360 const char **p; 361 362 for (p = chunks; *p; p++) 363 joined_len += strlen(*p) + 1; 364 365 if (!joined_len) { 366 ret = malloc(1); 367 if (ret) 368 ret[0] = '\0'; 369 return ret; 370 } 371 372 ret = malloc(joined_len); 373 current = ret; 374 if (!ret) 375 return ret; 376 377 for (p = chunks; *p; p++) { 378 len = strlen(*p); 379 memcpy(current, *p, len); 380 current += len; 381 *current = separator; 382 current++; 383 } 384 /* Replace the last separator by a \0. */ 385 current[-1] = '\0'; 386 return ret; 387 } 388 389 /** android_assemble_cmdline - Assemble the command line to pass to the kernel 390 * @return a newly allocated string 391 */ 392 char *android_assemble_cmdline(const char *slot_suffix, 393 const char *extra_args) 394 { 395 const char *cmdline_chunks[16]; 396 const char **current_chunk = cmdline_chunks; 397 char *env_cmdline, *cmdline, *rootdev_input, *serialno; 398 char *allocated_suffix = NULL; 399 char *allocated_serialno = NULL; 400 char *allocated_rootdev = NULL; 401 unsigned long rootdev_len; 402 403 env_cmdline = env_get("bootargs"); 404 if (env_cmdline) 405 *(current_chunk++) = env_cmdline; 406 407 /* The |slot_suffix| needs to be passed to the kernel to know what 408 * slot to boot from. 409 */ 410 #ifdef CONFIG_ANDROID_AB 411 if (slot_suffix) { 412 allocated_suffix = malloc(strlen(ANDROID_ARG_SLOT_SUFFIX) + 413 strlen(slot_suffix) + 1); 414 memset(allocated_suffix, 0, strlen(ANDROID_ARG_SLOT_SUFFIX) 415 + strlen(slot_suffix) + 1); 416 strcpy(allocated_suffix, ANDROID_ARG_SLOT_SUFFIX); 417 strcat(allocated_suffix, slot_suffix); 418 *(current_chunk++) = allocated_suffix; 419 } 420 #endif 421 serialno = env_get("serial#"); 422 if (serialno) { 423 allocated_serialno = malloc(strlen(ANDROID_ARG_SERIALNO) + 424 strlen(serialno) + 1); 425 memset(allocated_serialno, 0, strlen(ANDROID_ARG_SERIALNO) + 426 strlen(serialno) + 1); 427 strcpy(allocated_serialno, ANDROID_ARG_SERIALNO); 428 strcat(allocated_serialno, serialno); 429 *(current_chunk++) = allocated_serialno; 430 } 431 432 rootdev_input = env_get("android_rootdev"); 433 if (rootdev_input) { 434 rootdev_len = strlen(ANDROID_ARG_ROOT) + CONFIG_SYS_CBSIZE + 1; 435 allocated_rootdev = malloc(rootdev_len); 436 strcpy(allocated_rootdev, ANDROID_ARG_ROOT); 437 cli_simple_process_macros(rootdev_input, 438 allocated_rootdev + 439 strlen(ANDROID_ARG_ROOT)); 440 /* Make sure that the string is null-terminated since the 441 * previous could not copy to the end of the input string if it 442 * is too big. 443 */ 444 allocated_rootdev[rootdev_len - 1] = '\0'; 445 *(current_chunk++) = allocated_rootdev; 446 } 447 448 if (extra_args) 449 *(current_chunk++) = extra_args; 450 451 *(current_chunk++) = NULL; 452 cmdline = strjoin(cmdline_chunks, ' '); 453 free(allocated_suffix); 454 free(allocated_rootdev); 455 return cmdline; 456 } 457 458 #ifdef CONFIG_ANDROID_AVB 459 static void slot_set_unbootable(AvbABSlotData* slot) 460 { 461 slot->priority = 0; 462 slot->tries_remaining = 0; 463 slot->successful_boot = 0; 464 } 465 466 static char *join_str(const char *a, const char *b) 467 { 468 size_t len = strlen(a) + strlen(b) + 1 /* null term */; 469 char *ret = (char *)malloc(len); 470 471 if (!ret) { 472 debug("failed to alloc %zu\n", len); 473 return NULL; 474 } 475 strcpy(ret, a); 476 strcat(ret, b); 477 478 return ret; 479 } 480 481 static size_t get_partition_size(AvbOps *ops, char *name, 482 const char *slot_suffix) 483 { 484 char *partition_name = join_str(name, slot_suffix); 485 uint64_t size = 0; 486 AvbIOResult res; 487 488 if (partition_name == NULL) 489 goto bail; 490 491 res = ops->get_size_of_partition(ops, partition_name, &size); 492 if (res != AVB_IO_RESULT_OK && res != AVB_IO_RESULT_ERROR_NO_SUCH_PARTITION) 493 size = 0; 494 bail: 495 if (partition_name) 496 free(partition_name); 497 498 return size; 499 } 500 501 static struct AvbOpsData preload_user_data; 502 503 static int avb_image_distribute_prepare(AvbSlotVerifyData *slot_data, 504 AvbOps *ops, char *slot_suffix) 505 { 506 struct AvbOpsData *data = (struct AvbOpsData *)(ops->user_data); 507 size_t vendor_boot_size; 508 size_t init_boot_size; 509 size_t resource_size; 510 size_t boot_size; 511 void *image_buf; 512 513 boot_size = max(get_partition_size(ops, ANDROID_PARTITION_BOOT, slot_suffix), 514 get_partition_size(ops, ANDROID_PARTITION_RECOVERY, slot_suffix)); 515 init_boot_size = get_partition_size(ops, 516 ANDROID_PARTITION_INIT_BOOT, slot_suffix); 517 vendor_boot_size = get_partition_size(ops, 518 ANDROID_PARTITION_VENDOR_BOOT, slot_suffix); 519 resource_size = get_partition_size(ops, 520 ANDROID_PARTITION_RESOURCE, slot_suffix); 521 image_buf = sysmem_alloc(MEM_AVB_ANDROID, 522 boot_size + init_boot_size + 523 vendor_boot_size + resource_size); 524 if (!image_buf) { 525 printf("avb: sysmem alloc failed\n"); 526 return -ENOMEM; 527 } 528 529 /* layout: | boot/recovery | vendor_boot | init_boot | resource | */ 530 data->slot_suffix = slot_suffix; 531 data->boot.addr = image_buf; 532 data->boot.size = 0; 533 data->vendor_boot.addr = data->boot.addr + boot_size; 534 data->vendor_boot.size = 0; 535 data->init_boot.addr = data->vendor_boot.addr + vendor_boot_size; 536 data->init_boot.size = 0; 537 data->resource.addr = data->init_boot.addr + init_boot_size; 538 data->resource.size = 0; 539 540 return 0; 541 } 542 543 static int avb_image_distribute_finish(AvbSlotVerifyData *slot_data, 544 AvbSlotVerifyFlags flags, 545 ulong *load_address) 546 { 547 struct andr_img_hdr *hdr; 548 ulong load_addr = *load_address; 549 void *vendor_boot_hdr = NULL; 550 void *init_boot_hdr = NULL; 551 void *boot_hdr = NULL; 552 char *part_name; 553 int i, ret; 554 555 for (i = 0; i < slot_data->num_loaded_partitions; i++) { 556 part_name = slot_data->loaded_partitions[i].partition_name; 557 if (!strncmp(ANDROID_PARTITION_BOOT, part_name, 4) || 558 !strncmp(ANDROID_PARTITION_RECOVERY, part_name, 8)) { 559 boot_hdr = slot_data->loaded_partitions[i].data; 560 } else if (!strncmp(ANDROID_PARTITION_INIT_BOOT, part_name, 9)) { 561 init_boot_hdr = slot_data->loaded_partitions[i].data; 562 } else if (!strncmp(ANDROID_PARTITION_VENDOR_BOOT, part_name, 11)) { 563 vendor_boot_hdr = slot_data->loaded_partitions[i].data; 564 } 565 } 566 567 /* 568 * populate boot_img_hdr_v34 569 * 570 * If allow verification error: the images are loaded by 571 * ops->get_preloaded_partition() which auto populates 572 * boot_img_hdr_v34. 573 * 574 * If not allow verification error: the images are full loaded 575 * by ops->read_from_partition() which doesn't populate 576 * boot_img_hdr_v34, we need to fix it here for bootm and 577 */ 578 579 hdr = boot_hdr; 580 if (hdr->header_version >= 3 && 581 !(flags & AVB_SLOT_VERIFY_FLAGS_ALLOW_VERIFICATION_ERROR)) { 582 hdr = malloc(sizeof(struct andr_img_hdr)); 583 if (!hdr) 584 return -ENOMEM; 585 586 ret = populate_boot_info(boot_hdr, vendor_boot_hdr, 587 init_boot_hdr, hdr, true); 588 if (ret < 0) { 589 printf("avb: populate boot info failed, ret=%d\n", ret); 590 return ret; 591 } 592 memcpy(boot_hdr, hdr, sizeof(*hdr)); 593 } 594 595 /* distribute ! */ 596 load_addr -= hdr->page_size; 597 if (android_image_memcpy_separate(boot_hdr, &load_addr)) { 598 printf("Failed to separate copy android image\n"); 599 return AVB_SLOT_VERIFY_RESULT_ERROR_IO; 600 } 601 602 *load_address = load_addr; 603 604 return 0; 605 } 606 607 int android_image_verify_resource(const char *boot_part, ulong *resc_buf) 608 { 609 const char *requested_partitions[] = { 610 NULL, 611 NULL, 612 }; 613 struct AvbOpsData *data; 614 uint8_t unlocked = true; 615 AvbOps *ops; 616 AvbSlotVerifyFlags flags; 617 AvbSlotVerifyData *slot_data = {NULL}; 618 AvbSlotVerifyResult verify_result; 619 char slot_suffix[3] = {0}; 620 char *part_name; 621 void *image_buf = NULL; 622 int retry_no_vbmeta_partition = 1; 623 int i, ret; 624 625 ops = avb_ops_user_new(); 626 if (ops == NULL) { 627 printf("avb_ops_user_new() failed!\n"); 628 return -AVB_SLOT_VERIFY_RESULT_ERROR_OOM; 629 } 630 631 if (ops->read_is_device_unlocked(ops, (bool *)&unlocked) != AVB_IO_RESULT_OK) 632 printf("Error determining whether device is unlocked.\n"); 633 634 printf("Device is: %s\n", (unlocked & LOCK_MASK)? "UNLOCKED" : "LOCKED"); 635 636 if (unlocked & LOCK_MASK) { 637 *resc_buf = 0; 638 return 0; 639 } 640 641 flags = AVB_SLOT_VERIFY_FLAGS_NONE; 642 if (strcmp(boot_part, ANDROID_PARTITION_RECOVERY) == 0) 643 flags |= AVB_SLOT_VERIFY_FLAGS_NO_VBMETA_PARTITION; 644 645 #ifdef CONFIG_ANDROID_AB 646 part_name = strdup(boot_part); 647 *(part_name + strlen(boot_part) - 2) = '\0'; 648 requested_partitions[0] = part_name; 649 650 ret = rk_avb_get_current_slot(slot_suffix); 651 if (ret) { 652 printf("Failed to get slot suffix, ret=%d\n", ret); 653 return ret; 654 } 655 #else 656 requested_partitions[0] = boot_part; 657 #endif 658 data = (struct AvbOpsData *)(ops->user_data); 659 ret = avb_image_distribute_prepare(slot_data, ops, slot_suffix); 660 if (ret) { 661 printf("avb image distribute prepare failed %d\n", ret); 662 return ret; 663 } 664 665 retry_verify: 666 verify_result = 667 avb_slot_verify(ops, 668 requested_partitions, 669 slot_suffix, 670 flags, 671 AVB_HASHTREE_ERROR_MODE_RESTART, 672 &slot_data); 673 if (verify_result != AVB_SLOT_VERIFY_RESULT_OK && 674 verify_result != AVB_SLOT_VERIFY_RESULT_ERROR_PUBLIC_KEY_REJECTED) { 675 if (retry_no_vbmeta_partition && strcmp(boot_part, ANDROID_PARTITION_RECOVERY) == 0) { 676 printf("Verify recovery with vbmeta.\n"); 677 flags &= ~AVB_SLOT_VERIFY_FLAGS_NO_VBMETA_PARTITION; 678 retry_no_vbmeta_partition = 0; 679 goto retry_verify; 680 } 681 } 682 683 if (verify_result != AVB_SLOT_VERIFY_RESULT_OK || !slot_data) { 684 sysmem_free((ulong)data->boot.addr); 685 return verify_result; 686 } 687 688 for (i = 0; i < slot_data->num_loaded_partitions; i++) { 689 part_name = slot_data->loaded_partitions[i].partition_name; 690 if (!strncmp(ANDROID_PARTITION_RESOURCE, part_name, 8)) { 691 image_buf = slot_data->loaded_partitions[i].data; 692 break; 693 } else if (!strncmp(ANDROID_PARTITION_BOOT, part_name, 4) || 694 !strncmp(ANDROID_PARTITION_RECOVERY, part_name, 8)) { 695 struct andr_img_hdr *hdr; 696 697 hdr = (void *)slot_data->loaded_partitions[i].data; 698 if (android_image_check_header(hdr)) 699 continue; 700 701 if (hdr->header_version <= 2) { 702 image_buf = (void *)hdr + hdr->page_size + 703 ALIGN(hdr->kernel_size, hdr->page_size) + 704 ALIGN(hdr->ramdisk_size, hdr->page_size); 705 break; 706 } 707 } 708 } 709 710 if (image_buf) { 711 memcpy((char *)&preload_user_data, (char *)data, sizeof(*data)); 712 *resc_buf = (ulong)image_buf; 713 } 714 715 return 0; 716 } 717 718 /* 719 * AVB Policy. 720 * 721 * == avb with unlock: 722 * Don't process hash verify. 723 * Go pre-loaded path: Loading vendor_boot and init_boot 724 * directly to where they should be, while loading the 725 * boot/recovery. The boot message tells like: 726 * ··· 727 * preloaded: distribute image from 'boot_a' 728 * preloaded: distribute image from 'init_boot_a' 729 * preloaded: distribute image from 'vendor_boot_a' 730 * ··· 731 * 732 * == avb with lock: 733 * Process hash verify. 734 * Go pre-loaded path: Loading full vendor_boot, init_boot and 735 * boot/recovery one by one to verify, and distributing them to 736 * where they should be by memcpy at last. 737 * 738 * The three images share a large memory buffer that allocated 739 * by sysmem_alloc(), it locate at high memory address that 740 * just lower than SP bottom. The boot message tells like: 741 * ··· 742 * preloaded: full image from 'boot_a' at 0xe47f90c0 - 0xe7a4b0c0 743 * preloaded: full image from 'init_boot_a' at 0xeaff90c0 - 0xeb2950c0 744 * preloaded: full image from 'vendor_boot_a' at 0xe87f90c0 - 0xe9f6e0c0 745 * ··· 746 */ 747 static AvbSlotVerifyResult android_slot_verify(char *boot_partname, 748 unsigned long *android_load_address, 749 char *slot_suffix) 750 { 751 const char *requested_partitions[] = { 752 boot_partname, 753 NULL, 754 NULL, 755 NULL, 756 }; 757 struct AvbOpsData *data; 758 struct blk_desc *dev_desc; 759 struct andr_img_hdr *hdr; 760 disk_partition_t part_info; 761 uint8_t unlocked = true; 762 AvbOps *ops; 763 AvbSlotVerifyFlags flags; 764 AvbSlotVerifyData *slot_data = {NULL}; 765 AvbSlotVerifyResult verify_result; 766 AvbABData ab_data, ab_data_orig; 767 size_t slot_index_to_boot = 0; 768 char verify_state[38] = {0}; 769 char can_boot = 1; 770 char retry_no_vbmeta_partition = 1; 771 unsigned long load_address = *android_load_address; 772 int ret; 773 774 dev_desc = rockchip_get_bootdev(); 775 if (!dev_desc) 776 return AVB_IO_RESULT_ERROR_IO; 777 778 if (part_get_info_by_name(dev_desc, boot_partname, &part_info) < 0) { 779 printf("Could not find \"%s\" partition\n", boot_partname); 780 return AVB_IO_RESULT_ERROR_NO_SUCH_PARTITION; 781 } 782 783 hdr = populate_andr_img_hdr(dev_desc, &part_info); 784 if (!hdr) { 785 printf("No valid android hdr\n"); 786 return AVB_IO_RESULT_ERROR_NO_SUCH_VALUE; 787 } 788 789 if (hdr->header_version >= 4) { 790 requested_partitions[1] = ANDROID_PARTITION_VENDOR_BOOT; 791 if (((hdr->os_version >> 25) & 0x7f) >= 13) 792 requested_partitions[2] = ANDROID_PARTITION_INIT_BOOT; 793 } 794 795 ops = avb_ops_user_new(); 796 if (ops == NULL) { 797 printf("avb_ops_user_new() failed!\n"); 798 return AVB_SLOT_VERIFY_RESULT_ERROR_OOM; 799 } 800 801 if (ops->read_is_device_unlocked(ops, (bool *)&unlocked) != AVB_IO_RESULT_OK) 802 printf("Error determining whether device is unlocked.\n"); 803 804 printf("read_is_device_unlocked() ops returned that device is %s\n", 805 (unlocked & LOCK_MASK)? "UNLOCKED" : "LOCKED"); 806 807 flags = AVB_SLOT_VERIFY_FLAGS_NONE; 808 if (unlocked & LOCK_MASK) 809 flags |= AVB_SLOT_VERIFY_FLAGS_ALLOW_VERIFICATION_ERROR; 810 811 if (load_metadata(ops->ab_ops, &ab_data, &ab_data_orig)) { 812 printf("Can not load metadata\n"); 813 return AVB_SLOT_VERIFY_RESULT_ERROR_IO; 814 } 815 816 if (!strncmp(slot_suffix, "_a", 2)) 817 slot_index_to_boot = 0; 818 else if (!strncmp(slot_suffix, "_b", 2)) 819 slot_index_to_boot = 1; 820 else 821 slot_index_to_boot = 0; 822 823 if (strcmp(boot_partname, ANDROID_PARTITION_RECOVERY) == 0) 824 flags |= AVB_SLOT_VERIFY_FLAGS_NO_VBMETA_PARTITION; 825 826 #ifdef CONFIG_MP_BOOT 827 preload_user_data.boot.addr = (void *)mpb_post(1); 828 preload_user_data.boot.size = (size_t)mpb_post(2); 829 #endif 830 831 /* 832 * Handle the case: "avb lock + (vbus = 0) + recovery key pressed". 833 * Check whether required boot_partname is same as preload boot_partition. 834 */ 835 if (preload_user_data.boot_partition && strcmp(preload_user_data.boot_partition, boot_partname)) 836 preload_user_data.boot.addr = NULL; 837 838 /* use preload one if available */ 839 if (preload_user_data.boot.addr) { 840 data = (struct AvbOpsData *)(ops->user_data); 841 842 data->slot_suffix = slot_suffix; 843 data->boot = preload_user_data.boot; 844 data->vendor_boot = preload_user_data.vendor_boot; 845 data->init_boot = preload_user_data.init_boot; 846 data->resource = preload_user_data.resource; 847 } else { 848 ret = avb_image_distribute_prepare(slot_data, ops, slot_suffix); 849 if (ret < 0) { 850 printf("avb image distribute prepare failed %d\n", ret); 851 return AVB_SLOT_VERIFY_RESULT_ERROR_OOM; 852 } 853 } 854 855 retry_verify: 856 verify_result = 857 avb_slot_verify(ops, 858 requested_partitions, 859 slot_suffix, 860 flags, 861 AVB_HASHTREE_ERROR_MODE_RESTART, 862 &slot_data); 863 if (verify_result != AVB_SLOT_VERIFY_RESULT_OK && 864 verify_result != AVB_SLOT_VERIFY_RESULT_ERROR_PUBLIC_KEY_REJECTED) { 865 if (retry_no_vbmeta_partition && strcmp(boot_partname, ANDROID_PARTITION_RECOVERY) == 0) { 866 printf("Verify recovery with vbmeta.\n"); 867 flags &= ~AVB_SLOT_VERIFY_FLAGS_NO_VBMETA_PARTITION; 868 retry_no_vbmeta_partition = 0; 869 goto retry_verify; 870 } 871 } 872 873 strcat(verify_state, ANDROID_VERIFY_STATE); 874 switch (verify_result) { 875 case AVB_SLOT_VERIFY_RESULT_OK: 876 if (unlocked & LOCK_MASK) 877 strcat(verify_state, "orange"); 878 else 879 strcat(verify_state, "green"); 880 break; 881 case AVB_SLOT_VERIFY_RESULT_ERROR_PUBLIC_KEY_REJECTED: 882 if (unlocked & LOCK_MASK) 883 strcat(verify_state, "orange"); 884 else 885 strcat(verify_state, "yellow"); 886 break; 887 case AVB_SLOT_VERIFY_RESULT_ERROR_OOM: 888 case AVB_SLOT_VERIFY_RESULT_ERROR_IO: 889 case AVB_SLOT_VERIFY_RESULT_ERROR_INVALID_METADATA: 890 case AVB_SLOT_VERIFY_RESULT_ERROR_UNSUPPORTED_VERSION: 891 case AVB_SLOT_VERIFY_RESULT_ERROR_VERIFICATION: 892 case AVB_SLOT_VERIFY_RESULT_ERROR_ROLLBACK_INDEX: 893 default: 894 if (unlocked & LOCK_MASK) 895 strcat(verify_state, "orange"); 896 else 897 strcat(verify_state, "red"); 898 break; 899 } 900 901 if (!slot_data) { 902 can_boot = 0; 903 goto out; 904 } 905 906 if (verify_result == AVB_SLOT_VERIFY_RESULT_OK || 907 verify_result == AVB_SLOT_VERIFY_RESULT_ERROR_PUBLIC_KEY_REJECTED || 908 (unlocked & LOCK_MASK)) { 909 int len = 0; 910 char *bootargs, *newbootargs; 911 #ifdef CONFIG_ANDROID_AVB_ROLLBACK_INDEX 912 if (rk_avb_update_stored_rollback_indexes_for_slot(ops, slot_data)) 913 printf("Fail to update the rollback indexes.\n"); 914 #endif 915 if (slot_data->cmdline) { 916 debug("Kernel command line: %s\n", slot_data->cmdline); 917 len += strlen(slot_data->cmdline); 918 } 919 920 bootargs = env_get("bootargs"); 921 if (bootargs) 922 len += strlen(bootargs); 923 924 newbootargs = malloc(len + 2); 925 926 if (!newbootargs) { 927 puts("Error: malloc in android_slot_verify failed!\n"); 928 return AVB_SLOT_VERIFY_RESULT_ERROR_OOM; 929 } 930 *newbootargs = '\0'; 931 932 if (bootargs) { 933 strcpy(newbootargs, bootargs); 934 strcat(newbootargs, " "); 935 } 936 if (slot_data->cmdline) 937 strcat(newbootargs, slot_data->cmdline); 938 env_set("bootargs", newbootargs); 939 940 /* if need, distribute full image to where they should be */ 941 ret = avb_image_distribute_finish(slot_data, flags, &load_address); 942 if (ret) { 943 printf("avb image distribute finish failed %d\n", ret); 944 return ret; 945 } 946 *android_load_address = load_address; 947 } else { 948 slot_set_unbootable(&ab_data.slots[slot_index_to_boot]); 949 } 950 951 out: 952 env_update("bootargs", verify_state); 953 if (save_metadata_if_changed(ops->ab_ops, &ab_data, &ab_data_orig)) { 954 printf("Can not save metadata\n"); 955 verify_result = AVB_SLOT_VERIFY_RESULT_ERROR_IO; 956 } 957 958 if (slot_data != NULL) 959 avb_slot_verify_data_free(slot_data); 960 961 if ((unlocked & LOCK_MASK) && can_boot) 962 return 0; 963 else 964 return verify_result; 965 } 966 #endif 967 968 #if defined(CONFIG_OF_LIBFDT_OVERLAY) 969 970 /* 971 * Default return index 0. 972 */ 973 __weak int board_select_fdt_index(ulong dt_table_hdr) 974 { 975 /* 976 * User can use "dt_for_each_entry(entry, hdr, idx)" to iterate 977 * over all dt entry of DT image and pick up which they want. 978 * 979 * Example: 980 * struct dt_table_entry *entry; 981 * int index; 982 * 983 * dt_for_each_entry(entry, dt_table_hdr, index) { 984 * 985 * .... (use entry) 986 * } 987 * 988 * return index; 989 */ 990 return 0; 991 } 992 993 static int android_get_dtbo(ulong *fdt_dtbo, 994 const struct andr_img_hdr *hdr, 995 int *index, const char *part_dtbo) 996 { 997 struct dt_table_header *dt_hdr = NULL; 998 struct blk_desc *dev_desc; 999 disk_partition_t part_info; 1000 u32 blk_offset, blk_cnt; 1001 void *buf; 1002 ulong e_addr; 1003 u32 e_size; 1004 int e_idx; 1005 int ret; 1006 1007 /* Get partition info */ 1008 dev_desc = rockchip_get_bootdev(); 1009 if (!dev_desc) 1010 return -ENODEV; 1011 1012 ret = part_get_info_by_name(dev_desc, part_dtbo, &part_info); 1013 if (ret < 0) { 1014 printf("No %s partition, ret=%d\n", part_dtbo, ret); 1015 return ret; 1016 } 1017 1018 /* Check dt table header */ 1019 if (!strcmp(part_dtbo, PART_RECOVERY)) 1020 blk_offset = part_info.start + 1021 (hdr->recovery_dtbo_offset / part_info.blksz); 1022 else 1023 blk_offset = part_info.start; 1024 1025 dt_hdr = memalign(ARCH_DMA_MINALIGN, part_info.blksz); 1026 if (!dt_hdr) 1027 return -ENOMEM; 1028 1029 ret = blk_dread(dev_desc, blk_offset, 1, dt_hdr); 1030 if (ret != 1) 1031 goto out1; 1032 1033 if (!android_dt_check_header((ulong)dt_hdr)) { 1034 printf("DTBO: invalid dt table header: 0x%x\n", dt_hdr->magic); 1035 ret = -EINVAL; 1036 goto out1; 1037 } 1038 1039 #ifdef DEBUG 1040 android_dt_print_contents((ulong)dt_hdr); 1041 #endif 1042 1043 blk_cnt = DIV_ROUND_UP(fdt32_to_cpu(dt_hdr->total_size), 1044 part_info.blksz); 1045 /* Read all DT Image */ 1046 buf = memalign(ARCH_DMA_MINALIGN, part_info.blksz * blk_cnt); 1047 if (!buf) { 1048 ret = -ENOMEM; 1049 goto out1; 1050 } 1051 1052 ret = blk_dread(dev_desc, blk_offset, blk_cnt, buf); 1053 if (ret != blk_cnt) 1054 goto out2; 1055 1056 e_idx = board_select_fdt_index((ulong)buf); 1057 if (e_idx < 0) { 1058 printf("%s: failed to select board fdt index\n", __func__); 1059 ret = -EINVAL; 1060 goto out2; 1061 } 1062 1063 ret = android_dt_get_fdt_by_index((ulong)buf, e_idx, &e_addr, &e_size); 1064 if (!ret) { 1065 printf("%s: failed to get fdt, index=%d\n", __func__, e_idx); 1066 ret = -EINVAL; 1067 goto out2; 1068 } 1069 1070 if (fdt_dtbo) 1071 *fdt_dtbo = e_addr; 1072 if (index) 1073 *index = e_idx; 1074 1075 free(dt_hdr); 1076 debug("ANDROID: Loading dt entry to 0x%lx size 0x%x idx %d from \"%s\" part\n", 1077 e_addr, e_size, e_idx, part_dtbo); 1078 1079 return 0; 1080 1081 out2: 1082 free(buf); 1083 out1: 1084 free(dt_hdr); 1085 1086 return ret; 1087 } 1088 1089 int android_fdt_overlay_apply(void *fdt_addr) 1090 { 1091 struct andr_img_hdr *hdr; 1092 struct blk_desc *dev_desc; 1093 const char *part_boot = PART_BOOT; 1094 disk_partition_t part_info; 1095 char *fdt_backup; 1096 char *part_dtbo = PART_DTBO; 1097 char buf[32] = {0}; 1098 ulong fdt_dtbo = -1; 1099 u32 totalsize; 1100 int index = -1; 1101 int ret; 1102 1103 if (rockchip_get_boot_mode() == BOOT_MODE_RECOVERY) { 1104 #ifdef CONFIG_ANDROID_AB 1105 bool can_find_recovery; 1106 1107 can_find_recovery = ab_can_find_recovery_part(); 1108 part_boot = can_find_recovery ? PART_RECOVERY : PART_BOOT; 1109 part_dtbo = can_find_recovery ? PART_RECOVERY : PART_DTBO; 1110 #else 1111 part_boot = PART_RECOVERY; 1112 part_dtbo = PART_RECOVERY; 1113 #endif 1114 } 1115 1116 dev_desc = rockchip_get_bootdev(); 1117 if (!dev_desc) 1118 return -ENODEV; 1119 1120 ret = part_get_info_by_name(dev_desc, part_boot, &part_info); 1121 if (ret < 0) 1122 return ret; 1123 1124 hdr = populate_andr_img_hdr(dev_desc, &part_info); 1125 if (!hdr) 1126 return -EINVAL; 1127 #ifdef DEBUG 1128 android_print_contents(hdr); 1129 #endif 1130 1131 /* 1132 * Google requires a/b system mandory from Android Header v3 for 1133 * google authentication, that means there is not recovery. 1134 * 1135 * But for the products that don't care about google authentication, 1136 * it's not mandory to use a/b system. So that we use the solution: 1137 * boot.img(v3+) with recovery(v2). 1138 * 1139 * [recovery_dtbo fields] 1140 * recovery.img with boot_img_hdr_v1,2: supported 1141 * recovery.img with boot_img_hdr_v0,3+: illegal 1142 */ 1143 if ((hdr->header_version == 0) || 1144 (hdr->header_version >= 3 && !strcmp(part_boot, PART_RECOVERY))) 1145 goto out; 1146 1147 ret = android_get_dtbo(&fdt_dtbo, (void *)hdr, &index, part_dtbo); 1148 if (!ret) { 1149 phys_size_t fdt_size; 1150 1151 /* Must incease size before overlay */ 1152 fdt_size = fdt_totalsize((void *)fdt_addr) + 1153 fdt_totalsize((void *)fdt_dtbo); 1154 if (sysmem_free((phys_addr_t)fdt_addr)) 1155 goto out; 1156 1157 if (!sysmem_alloc_base(MEM_FDT_DTBO, 1158 (phys_addr_t)fdt_addr, 1159 fdt_size + CONFIG_SYS_FDT_PAD)) 1160 goto out; 1161 /* 1162 * Backup main fdt in case of being destroyed by 1163 * fdt_overlay_apply() when it overlys failed. 1164 */ 1165 totalsize = fdt_totalsize(fdt_addr); 1166 fdt_backup = malloc(totalsize); 1167 if (!fdt_backup) 1168 goto out; 1169 1170 memcpy(fdt_backup, fdt_addr, totalsize); 1171 fdt_increase_size(fdt_addr, fdt_totalsize((void *)fdt_dtbo)); 1172 ret = fdt_overlay_apply(fdt_addr, (void *)fdt_dtbo); 1173 if (!ret) { 1174 snprintf(buf, 32, "%s%d", "androidboot.dtbo_idx=", index); 1175 env_update("bootargs", buf); 1176 printf("ANDROID: fdt overlay OK\n"); 1177 } else { 1178 memcpy(fdt_addr, fdt_backup, totalsize); 1179 printf("ANDROID: fdt overlay failed, ret=%d\n", ret); 1180 } 1181 1182 free(fdt_backup); 1183 } 1184 1185 out: 1186 free(hdr); 1187 1188 return 0; 1189 } 1190 #endif 1191 1192 int android_image_load_by_partname(struct blk_desc *dev_desc, 1193 const char *boot_partname, 1194 unsigned long *load_address) 1195 { 1196 disk_partition_t boot_part; 1197 int ret, part_num; 1198 1199 part_num = part_get_info_by_name(dev_desc, boot_partname, &boot_part); 1200 if (part_num < 0) { 1201 printf("%s: Can't find part: %s\n", __func__, boot_partname); 1202 return -1; 1203 } 1204 debug("ANDROID: Loading kernel from \"%s\", partition %d.\n", 1205 boot_part.name, part_num); 1206 1207 ret = android_image_load(dev_desc, &boot_part, *load_address, -1UL); 1208 if (ret < 0) { 1209 debug("%s: %s part load fail, ret=%d\n", 1210 __func__, boot_part.name, ret); 1211 return ret; 1212 } 1213 *load_address = ret; 1214 1215 return 0; 1216 } 1217 1218 int android_bootloader_boot_flow(struct blk_desc *dev_desc, 1219 unsigned long load_address) 1220 { 1221 enum android_boot_mode mode = ANDROID_BOOT_MODE_NORMAL; 1222 disk_partition_t misc_part_info; 1223 int part_num; 1224 char *command_line; 1225 char slot_suffix[3] = {0}; 1226 const char *mode_cmdline = NULL; 1227 char *boot_partname = ANDROID_PARTITION_BOOT; 1228 1229 /* 1230 * 1. Load MISC partition and determine the boot mode 1231 * clear its value for the next boot if needed. 1232 */ 1233 part_num = part_get_info_by_name(dev_desc, ANDROID_PARTITION_MISC, 1234 &misc_part_info); 1235 if (part_num < 0) { 1236 printf("Could not find misc partition\n"); 1237 } else { 1238 #ifdef CONFIG_ANDROID_KEYMASTER_CA 1239 /* load attestation key from misc partition. */ 1240 load_attestation_key(dev_desc, &misc_part_info); 1241 #endif 1242 1243 mode = android_bootloader_load_and_clear_mode(dev_desc, 1244 &misc_part_info); 1245 #ifdef CONFIG_RKIMG_BOOTLOADER 1246 if (mode == ANDROID_BOOT_MODE_NORMAL) { 1247 if (rockchip_get_boot_mode() == BOOT_MODE_RECOVERY) 1248 mode = ANDROID_BOOT_MODE_RECOVERY; 1249 } 1250 #endif 1251 } 1252 1253 printf("ANDROID: reboot reason: \"%s\"\n", android_boot_mode_str(mode)); 1254 #ifdef CONFIG_ANDROID_AB 1255 /* Get current slot_suffix */ 1256 if (ab_get_slot_suffix(slot_suffix)) 1257 return -1; 1258 #endif 1259 switch (mode) { 1260 case ANDROID_BOOT_MODE_NORMAL: 1261 /* In normal mode, we load the kernel from "boot" but append 1262 * "skip_initramfs" to the cmdline to make it ignore the 1263 * recovery initramfs in the boot partition. 1264 */ 1265 #ifdef CONFIG_ANDROID_AB 1266 /* In A/B, the recovery image is built as boot.img, containing the 1267 * recovery's ramdisk. Previously, bootloader used the skip_initramfs 1268 * kernel command line parameter to decide which mode to boot into. 1269 * For Android >=10 and with dynamic partition support, the bootloader 1270 * MUST NOT pass skip_initramfs to the kernel command-line. 1271 * Instead, bootloader should pass androidboot.force_normal_boot=1 1272 * and then Android's first-stage init in ramdisk 1273 * will skip recovery and boot normal Android. 1274 */ 1275 if (ab_is_support_dynamic_partition(dev_desc)) { 1276 mode_cmdline = "androidboot.force_normal_boot=1"; 1277 } else { 1278 mode_cmdline = "skip_initramfs"; 1279 } 1280 #endif 1281 break; 1282 case ANDROID_BOOT_MODE_RECOVERY: 1283 /* 1284 * In recovery mode, if have recovery partition, we still boot the 1285 * kernel from "recovery". If not, don't skip the initramfs so it 1286 * boots to recovery from image in partition "boot". 1287 */ 1288 #ifdef CONFIG_ANDROID_AB 1289 boot_partname = ab_can_find_recovery_part() ? 1290 ANDROID_PARTITION_RECOVERY : ANDROID_PARTITION_BOOT; 1291 #else 1292 boot_partname = ANDROID_PARTITION_RECOVERY; 1293 #endif 1294 break; 1295 case ANDROID_BOOT_MODE_BOOTLOADER: 1296 /* Bootloader mode enters fastboot. If this operation fails we 1297 * simply return since we can't recover from this situation by 1298 * switching to another slot. 1299 */ 1300 return android_bootloader_boot_bootloader(); 1301 } 1302 1303 #ifdef CONFIG_ANDROID_AVB 1304 uint8_t vboot_flag = 0; 1305 disk_partition_t vbmeta_part_info; 1306 1307 #ifdef CONFIG_OPTEE_CLIENT 1308 if (trusty_read_vbootkey_enable_flag(&vboot_flag)) { 1309 printf("Can't read vboot flag\n"); 1310 return -1; 1311 } 1312 #endif 1313 if (vboot_flag) { 1314 printf("Vboot=1, SecureBoot enabled, AVB verify\n"); 1315 if (android_slot_verify(boot_partname, &load_address, 1316 slot_suffix)) { 1317 printf("AVB verify failed\n"); 1318 1319 return -1; 1320 } 1321 } else { 1322 part_num = part_get_info_by_name(dev_desc, 1323 ANDROID_PARTITION_VBMETA, 1324 &vbmeta_part_info); 1325 if (part_num < 0) { 1326 printf("Not AVB images, AVB skip\n"); 1327 env_update("bootargs", 1328 "androidboot.verifiedbootstate=orange"); 1329 if (android_image_load_by_partname(dev_desc, 1330 boot_partname, 1331 &load_address)) { 1332 printf("Android image load failed\n"); 1333 return -1; 1334 } 1335 } else { 1336 printf("Vboot=0, AVB images, AVB verify\n"); 1337 if (android_slot_verify(boot_partname, &load_address, 1338 slot_suffix)) { 1339 printf("AVB verify failed\n"); 1340 1341 return -1; 1342 } 1343 } 1344 } 1345 #else 1346 /* 1347 * 2. Load the boot/recovery from the desired "boot" partition. 1348 * Determine if this is an AOSP image. 1349 */ 1350 if (android_image_load_by_partname(dev_desc, 1351 boot_partname, 1352 &load_address)) { 1353 printf("Android image load failed\n"); 1354 return -1; 1355 } 1356 #endif 1357 1358 /* Set Android root variables. */ 1359 env_set_ulong("android_root_devnum", dev_desc->devnum); 1360 env_set("android_slotsufix", slot_suffix); 1361 1362 #ifdef CONFIG_FASTBOOT_OEM_UNLOCK 1363 /* read oem unlock status and attach to bootargs */ 1364 uint8_t unlock = 0; 1365 TEEC_Result result; 1366 char oem_unlock[OEM_UNLOCK_ARG_SIZE] = {0}; 1367 result = trusty_read_oem_unlock(&unlock); 1368 if (result) { 1369 printf("read oem unlock status with error : 0x%x\n", result); 1370 } else { 1371 snprintf(oem_unlock, OEM_UNLOCK_ARG_SIZE, "androidboot.oem_unlocked=%d", unlock); 1372 env_update("bootargs", oem_unlock); 1373 } 1374 #endif 1375 1376 /* Assemble the command line */ 1377 command_line = android_assemble_cmdline(slot_suffix, mode_cmdline); 1378 env_update("bootargs", command_line); 1379 1380 debug("ANDROID: bootargs: \"%s\"\n", command_line); 1381 1382 #ifdef CONFIG_SUPPORT_OEM_DTB 1383 if (android_bootloader_get_fdt(ANDROID_PARTITION_OEM, 1384 ANDROID_ARG_FDT_FILENAME)) { 1385 printf("Can not get the fdt data from oem!\n"); 1386 } 1387 #endif 1388 #ifdef CONFIG_OPTEE_CLIENT 1389 if (trusty_notify_optee_uboot_end()) 1390 printf("Close optee client failed!\n"); 1391 #endif 1392 1393 #ifdef CONFIG_AMP 1394 return android_bootloader_boot_kernel(load_address); 1395 #else 1396 android_bootloader_boot_kernel(load_address); 1397 1398 /* TODO: If the kernel doesn't boot mark the selected slot as bad. */ 1399 return -1; 1400 #endif 1401 } 1402 1403 int android_avb_boot_flow(unsigned long kernel_address) 1404 { 1405 struct blk_desc *dev_desc; 1406 disk_partition_t boot_part_info; 1407 int ret; 1408 1409 dev_desc = rockchip_get_bootdev(); 1410 if (!dev_desc) { 1411 printf("%s: dev_desc is NULL!\n", __func__); 1412 return -1; 1413 } 1414 1415 /* Load the kernel from the desired "boot" partition. */ 1416 ret = part_get_info_by_name(dev_desc, ANDROID_PARTITION_BOOT, 1417 &boot_part_info); 1418 if (ret < 0) { 1419 printf("%s: failed to get boot part\n", __func__); 1420 return ret; 1421 } 1422 1423 ret = android_image_load(dev_desc, &boot_part_info, 1424 kernel_address, -1UL); 1425 if (ret < 0) { 1426 printf("Android avb boot failed, error %d.\n", ret); 1427 return ret; 1428 } 1429 1430 android_bootloader_boot_kernel(kernel_address); 1431 1432 /* TODO: If the kernel doesn't boot mark the selected slot as bad. */ 1433 return -1; 1434 } 1435 1436 int android_boot_flow(unsigned long kernel_address) 1437 { 1438 struct blk_desc *dev_desc; 1439 disk_partition_t boot_part_info; 1440 int ret; 1441 1442 dev_desc = rockchip_get_bootdev(); 1443 if (!dev_desc) { 1444 printf("%s: dev_desc is NULL!\n", __func__); 1445 return -1; 1446 } 1447 /* Load the kernel from the desired "boot" partition. */ 1448 ret = part_get_info_by_name(dev_desc, ANDROID_PARTITION_BOOT, 1449 &boot_part_info); 1450 if (ret < 0) { 1451 printf("%s: failed to get boot part\n", __func__); 1452 return ret; 1453 } 1454 1455 ret = android_image_load(dev_desc, &boot_part_info, kernel_address, 1456 -1UL); 1457 if (ret < 0) 1458 return ret; 1459 1460 android_bootloader_boot_kernel(kernel_address); 1461 1462 /* TODO: If the kernel doesn't boot mark the selected slot as bad. */ 1463 return -1; 1464 } 1465