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 <fdt_support.h> 22 #include <fs.h> 23 #include <boot_rkimg.h> 24 #include <attestation_key.h> 25 #include <keymaster.h> 26 #include <linux/libfdt_env.h> 27 #include <optee_include/OpteeClientInterface.h> 28 #include <bidram.h> 29 #include <console.h> 30 #include <sysmem.h> 31 32 DECLARE_GLOBAL_DATA_PTR; 33 34 int android_bootloader_message_load( 35 struct blk_desc *dev_desc, 36 const disk_partition_t *part_info, 37 struct android_bootloader_message *message) 38 { 39 ulong message_blocks = sizeof(struct android_bootloader_message) / 40 part_info->blksz; 41 if (message_blocks > part_info->size) { 42 printf("misc partition too small.\n"); 43 return -1; 44 } 45 46 if (blk_dread(dev_desc, part_info->start + android_bcb_msg_sector_offset(), 47 message_blocks, message) != 48 message_blocks) { 49 printf("Could not read from misc partition\n"); 50 return -1; 51 } 52 debug("ANDROID: Loaded BCB, %lu blocks.\n", message_blocks); 53 return 0; 54 } 55 56 static int android_bootloader_message_write( 57 struct blk_desc *dev_desc, 58 const disk_partition_t *part_info, 59 struct android_bootloader_message *message) 60 { 61 ulong message_blocks = sizeof(struct android_bootloader_message) / 62 part_info->blksz + android_bcb_msg_sector_offset(); 63 64 if (message_blocks > part_info->size) { 65 printf("misc partition too small.\n"); 66 return -1; 67 } 68 69 if (blk_dwrite(dev_desc, part_info->start, message_blocks, message) != 70 message_blocks) { 71 printf("Could not write to misc partition\n"); 72 return -1; 73 } 74 debug("ANDROID: Wrote new BCB, %lu blocks.\n", message_blocks); 75 return 0; 76 } 77 78 static enum android_boot_mode android_bootloader_load_and_clear_mode( 79 struct blk_desc *dev_desc, 80 const disk_partition_t *misc_part_info) 81 { 82 struct android_bootloader_message bcb; 83 84 #ifdef CONFIG_FASTBOOT 85 char *bootloader_str; 86 87 /* Check for message from bootloader stored in RAM from a previous boot. 88 */ 89 bootloader_str = (char *)CONFIG_FASTBOOT_BUF_ADDR; 90 if (!strcmp("reboot-bootloader", bootloader_str)) { 91 bootloader_str[0] = '\0'; 92 return ANDROID_BOOT_MODE_BOOTLOADER; 93 } 94 #endif 95 96 /* Check and update the BCB message if needed. */ 97 if (android_bootloader_message_load(dev_desc, misc_part_info, &bcb) < 98 0) { 99 printf("WARNING: Unable to load the BCB.\n"); 100 return ANDROID_BOOT_MODE_NORMAL; 101 } 102 103 if (!strcmp("bootonce-bootloader", bcb.command)) { 104 /* Erase the message in the BCB since this value should be used 105 * only once. 106 */ 107 memset(bcb.command, 0, sizeof(bcb.command)); 108 android_bootloader_message_write(dev_desc, misc_part_info, 109 &bcb); 110 return ANDROID_BOOT_MODE_BOOTLOADER; 111 } 112 113 if (!strcmp("boot-recovery", bcb.command)) 114 return ANDROID_BOOT_MODE_RECOVERY; 115 116 if (!strcmp("boot-fastboot", bcb.command)) 117 return ANDROID_BOOT_MODE_RECOVERY; 118 119 return ANDROID_BOOT_MODE_NORMAL; 120 } 121 122 int android_bcb_write(char *cmd) 123 { 124 struct android_bootloader_message message = {0}; 125 disk_partition_t part_info; 126 struct blk_desc *dev_desc; 127 int ret; 128 129 if (!cmd) 130 return -ENOMEM; 131 132 if (strlen(cmd) >= 32) 133 return -ENOMEM; 134 135 dev_desc = rockchip_get_bootdev(); 136 if (!dev_desc) { 137 printf("%s: dev_desc is NULL!\n", __func__); 138 return -ENODEV; 139 } 140 141 ret = part_get_info_by_name(dev_desc, ANDROID_PARTITION_MISC, &part_info); 142 if (ret < 0) { 143 printf("%s: Could not found misc partition, just run recovery\n", 144 __func__); 145 return -ENODEV; 146 } 147 148 strcpy(message.command, cmd); 149 return android_bootloader_message_write(dev_desc, &part_info, &message); 150 } 151 152 /** 153 * Return the reboot reason string for the passed boot mode. 154 * 155 * @param mode The Android Boot mode. 156 * @return a pointer to the reboot reason string for mode. 157 */ 158 static const char *android_boot_mode_str(enum android_boot_mode mode) 159 { 160 switch (mode) { 161 case ANDROID_BOOT_MODE_NORMAL: 162 return "(none)"; 163 case ANDROID_BOOT_MODE_RECOVERY: 164 return "recovery"; 165 case ANDROID_BOOT_MODE_BOOTLOADER: 166 return "bootloader"; 167 } 168 return NULL; 169 } 170 171 static int android_bootloader_boot_bootloader(void) 172 { 173 const char *fastboot_cmd = env_get("fastbootcmd"); 174 175 if (fastboot_cmd == NULL) { 176 printf("fastboot_cmd is null, run default fastboot_cmd!\n"); 177 fastboot_cmd = "fastboot usb 0"; 178 } 179 180 return run_command(fastboot_cmd, CMD_FLAG_ENV); 181 } 182 183 #ifdef CONFIG_SUPPORT_OEM_DTB 184 static int android_bootloader_get_fdt(const char *part_name, 185 const char *load_file_name) 186 { 187 struct blk_desc *dev_desc; 188 disk_partition_t part_info; 189 char *fdt_addr = NULL; 190 char dev_part[3] = {0}; 191 loff_t bytes = 0; 192 loff_t pos = 0; 193 loff_t len_read; 194 unsigned long addr = 0; 195 int part_num = -1; 196 int ret; 197 198 dev_desc = rockchip_get_bootdev(); 199 if (!dev_desc) { 200 printf("%s: dev_desc is NULL!\n", __func__); 201 return -1; 202 } 203 204 part_num = part_get_info_by_name(dev_desc, part_name, &part_info); 205 if (part_num < 0) { 206 printf("ANDROID: Could not find partition \"%s\"\n", part_name); 207 return -1; 208 } 209 210 snprintf(dev_part, ARRAY_SIZE(dev_part), ":%x", part_num); 211 if (fs_set_blk_dev_with_part(dev_desc, part_num)) 212 return -1; 213 214 fdt_addr = env_get("fdt_addr_r"); 215 if (!fdt_addr) { 216 printf("ANDROID: No Found FDT Load Address.\n"); 217 return -1; 218 } 219 addr = simple_strtoul(fdt_addr, NULL, 16); 220 221 ret = fs_read(load_file_name, addr, pos, bytes, &len_read); 222 if (ret < 0) 223 return -1; 224 225 return 0; 226 } 227 #endif 228 229 /* 230 * Test on RK3308 AARCH64 mode (Cortex A35 816 MHZ) boot with eMMC: 231 * 232 * |-------------------------------------------------------------------| 233 * | Format | Size(Byte) | Ratio | Decomp time(ms) | Boot time(ms) | 234 * |-------------------------------------------------------------------| 235 * | Image | 7720968 | | | 488 | 236 * |-------------------------------------------------------------------| 237 * | Image.lz4 | 4119448 | 53% | 59 | 455 | 238 * |-------------------------------------------------------------------| 239 * | Image.lzo | 3858322 | 49% | 141 | 536 | 240 * |-------------------------------------------------------------------| 241 * | Image.gz | 3529108 | 45% | 222 | 609 | 242 * |-------------------------------------------------------------------| 243 * | Image.bz2 | 3295914 | 42% | 2940 | | 244 * |-------------------------------------------------------------------| 245 * | Image.lzma| 2683750 | 34% | | | 246 * |-------------------------------------------------------------------| 247 */ 248 static int sysmem_alloc_uncomp_kernel(ulong andr_hdr, 249 ulong uncomp_kaddr, u32 comp) 250 { 251 struct andr_img_hdr *hdr = (struct andr_img_hdr *)andr_hdr; 252 ulong ksize, kaddr; 253 254 if (comp != IH_COMP_NONE) { 255 /* Release compressed sysmem */ 256 kaddr = env_get_hex("kernel_addr_c", 0); 257 if (!kaddr) 258 kaddr = env_get_hex("kernel_addr_r", 0); 259 kaddr -= hdr->page_size; 260 if (sysmem_free((phys_addr_t)kaddr)) 261 return -EINVAL; 262 #ifdef CONFIG_SKIP_RELOCATE_UBOOT 263 sysmem_free(CONFIG_SYS_TEXT_BASE); 264 #endif 265 /* 266 * Use smaller Ratio to get larger estimated uncompress 267 * kernel size. 268 */ 269 if (comp == IH_COMP_ZIMAGE) 270 ksize = hdr->kernel_size * 100 / 45; 271 else if (comp == IH_COMP_LZ4) 272 ksize = hdr->kernel_size * 100 / 50; 273 else if (comp == IH_COMP_LZO) 274 ksize = hdr->kernel_size * 100 / 45; 275 else if (comp == IH_COMP_GZIP) 276 ksize = hdr->kernel_size * 100 / 40; 277 else if (comp == IH_COMP_BZIP2) 278 ksize = hdr->kernel_size * 100 / 40; 279 else if (comp == IH_COMP_LZMA) 280 ksize = hdr->kernel_size * 100 / 30; 281 else 282 ksize = hdr->kernel_size; 283 284 kaddr = uncomp_kaddr; 285 ksize = ALIGN(ksize, 512); 286 if (!sysmem_alloc_base(MEM_UNCOMP_KERNEL, 287 (phys_addr_t)kaddr, ksize)) 288 return -ENOMEM; 289 } 290 291 return 0; 292 } 293 294 int android_bootloader_boot_kernel(unsigned long kernel_address) 295 { 296 char *kernel_addr_r = env_get("kernel_addr_r"); 297 char *kernel_addr_c = env_get("kernel_addr_c"); 298 char *fdt_addr = env_get("fdt_addr_r"); 299 char kernel_addr_str[12]; 300 char comp_str[32] = {0}; 301 ulong comp_type; 302 const char *comp_name[] = { 303 [IH_COMP_NONE] = "IMAGE", 304 [IH_COMP_GZIP] = "GZIP", 305 [IH_COMP_BZIP2] = "BZIP2", 306 [IH_COMP_LZMA] = "LZMA", 307 [IH_COMP_LZO] = "LZO", 308 [IH_COMP_LZ4] = "LZ4", 309 [IH_COMP_ZIMAGE]= "ZIMAGE", 310 }; 311 char *bootm_args[] = { 312 kernel_addr_str, kernel_addr_str, fdt_addr, NULL }; 313 314 comp_type = env_get_ulong("os_comp", 10, 0); 315 sprintf(kernel_addr_str, "0x%08lx", kernel_address); 316 317 if (comp_type != IH_COMP_NONE) { 318 if (comp_type == IH_COMP_ZIMAGE && 319 kernel_addr_r && !kernel_addr_c) { 320 kernel_addr_c = kernel_addr_r; 321 kernel_addr_r = __stringify(CONFIG_SYS_SDRAM_BASE); 322 } 323 snprintf(comp_str, 32, "%s%s%s", 324 "(Uncompress to ", kernel_addr_r, ")"); 325 } 326 327 printf("Booting %s kernel at %s%s with fdt at %s...\n\n\n", 328 comp_name[comp_type], 329 comp_type != IH_COMP_NONE ? kernel_addr_c : kernel_addr_r, 330 comp_str, fdt_addr); 331 332 hotkey_run(HK_SYSMEM); 333 334 /* 335 * Check whether there is enough space for uncompress kernel, 336 * Actually, here only gives a sysmem warning message when failed 337 * but never return -1. 338 */ 339 if (sysmem_alloc_uncomp_kernel(kernel_address, 340 simple_strtoul(kernel_addr_r, NULL, 16), 341 comp_type)) 342 return -1; 343 344 return do_bootm_states(NULL, 0, ARRAY_SIZE(bootm_args), bootm_args, 345 BOOTM_STATE_START | 346 BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER | 347 BOOTM_STATE_LOADOS | 348 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH 349 BOOTM_STATE_RAMDISK | 350 #endif 351 BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO | 352 BOOTM_STATE_OS_GO, &images, 1); 353 } 354 355 static char *strjoin(const char **chunks, char separator) 356 { 357 int len, joined_len = 0; 358 char *ret, *current; 359 const char **p; 360 361 for (p = chunks; *p; p++) 362 joined_len += strlen(*p) + 1; 363 364 if (!joined_len) { 365 ret = malloc(1); 366 if (ret) 367 ret[0] = '\0'; 368 return ret; 369 } 370 371 ret = malloc(joined_len); 372 current = ret; 373 if (!ret) 374 return ret; 375 376 for (p = chunks; *p; p++) { 377 len = strlen(*p); 378 memcpy(current, *p, len); 379 current += len; 380 *current = separator; 381 current++; 382 } 383 /* Replace the last separator by a \0. */ 384 current[-1] = '\0'; 385 return ret; 386 } 387 388 /** android_assemble_cmdline - Assemble the command line to pass to the kernel 389 * @return a newly allocated string 390 */ 391 char *android_assemble_cmdline(const char *slot_suffix, 392 const char *extra_args) 393 { 394 const char *cmdline_chunks[16]; 395 const char **current_chunk = cmdline_chunks; 396 char *env_cmdline, *cmdline, *rootdev_input, *serialno; 397 char *allocated_suffix = NULL; 398 char *allocated_serialno = NULL; 399 char *allocated_rootdev = NULL; 400 unsigned long rootdev_len; 401 402 env_cmdline = env_get("bootargs"); 403 if (env_cmdline) 404 *(current_chunk++) = env_cmdline; 405 406 /* The |slot_suffix| needs to be passed to the kernel to know what 407 * slot to boot from. 408 */ 409 if (slot_suffix) { 410 allocated_suffix = malloc(strlen(ANDROID_ARG_SLOT_SUFFIX) + 411 strlen(slot_suffix) + 1); 412 memset(allocated_suffix, 0, strlen(ANDROID_ARG_SLOT_SUFFIX) 413 + strlen(slot_suffix) + 1); 414 strcpy(allocated_suffix, ANDROID_ARG_SLOT_SUFFIX); 415 strcat(allocated_suffix, slot_suffix); 416 *(current_chunk++) = allocated_suffix; 417 } 418 419 serialno = env_get("serial#"); 420 if (serialno) { 421 allocated_serialno = malloc(strlen(ANDROID_ARG_SERIALNO) + 422 strlen(serialno) + 1); 423 memset(allocated_serialno, 0, strlen(ANDROID_ARG_SERIALNO) + 424 strlen(serialno) + 1); 425 strcpy(allocated_serialno, ANDROID_ARG_SERIALNO); 426 strcat(allocated_serialno, serialno); 427 *(current_chunk++) = allocated_serialno; 428 } 429 430 rootdev_input = env_get("android_rootdev"); 431 if (rootdev_input) { 432 rootdev_len = strlen(ANDROID_ARG_ROOT) + CONFIG_SYS_CBSIZE + 1; 433 allocated_rootdev = malloc(rootdev_len); 434 strcpy(allocated_rootdev, ANDROID_ARG_ROOT); 435 cli_simple_process_macros(rootdev_input, 436 allocated_rootdev + 437 strlen(ANDROID_ARG_ROOT)); 438 /* Make sure that the string is null-terminated since the 439 * previous could not copy to the end of the input string if it 440 * is too big. 441 */ 442 allocated_rootdev[rootdev_len - 1] = '\0'; 443 *(current_chunk++) = allocated_rootdev; 444 } 445 446 if (extra_args) 447 *(current_chunk++) = extra_args; 448 449 *(current_chunk++) = NULL; 450 cmdline = strjoin(cmdline_chunks, ' '); 451 free(allocated_suffix); 452 free(allocated_rootdev); 453 return cmdline; 454 } 455 456 #ifdef CONFIG_ANDROID_AVB 457 static void slot_set_unbootable(AvbABSlotData* slot) 458 { 459 slot->priority = 0; 460 slot->tries_remaining = 0; 461 slot->successful_boot = 0; 462 } 463 464 static AvbSlotVerifyResult android_slot_verify(char *boot_partname, 465 unsigned long *android_load_address, 466 char *slot_suffix) 467 { 468 const char *requested_partitions[1] = {NULL}; 469 uint8_t unlocked = true; 470 AvbOps *ops; 471 AvbSlotVerifyFlags flags; 472 AvbSlotVerifyData *slot_data[1] = {NULL}; 473 AvbSlotVerifyResult verify_result; 474 AvbABData ab_data, ab_data_orig; 475 size_t slot_index_to_boot = 0; 476 char verify_state[38] = {0}; 477 char can_boot = 1; 478 char retry_no_vbmeta_partition = 1; 479 unsigned long load_address = *android_load_address; 480 struct andr_img_hdr *hdr; 481 482 requested_partitions[0] = boot_partname; 483 ops = avb_ops_user_new(); 484 if (ops == NULL) { 485 printf("avb_ops_user_new() failed!\n"); 486 return AVB_SLOT_VERIFY_RESULT_ERROR_OOM; 487 } 488 489 if (ops->read_is_device_unlocked(ops, (bool *)&unlocked) != AVB_IO_RESULT_OK) 490 printf("Error determining whether device is unlocked.\n"); 491 492 printf("read_is_device_unlocked() ops returned that device is %s\n", 493 (unlocked & LOCK_MASK)? "UNLOCKED" : "LOCKED"); 494 495 flags = AVB_SLOT_VERIFY_FLAGS_NONE; 496 if (unlocked & LOCK_MASK) 497 flags |= AVB_SLOT_VERIFY_FLAGS_ALLOW_VERIFICATION_ERROR; 498 499 if(load_metadata(ops->ab_ops, &ab_data, &ab_data_orig)) { 500 printf("Can not load metadata\n"); 501 return AVB_SLOT_VERIFY_RESULT_ERROR_IO; 502 } 503 504 if (!strncmp(slot_suffix, "_a", 2)) 505 slot_index_to_boot = 0; 506 else if (!strncmp(slot_suffix, "_b", 2)) 507 slot_index_to_boot = 1; 508 else 509 slot_index_to_boot = 0; 510 511 if (strcmp(boot_partname, "recovery") == 0) 512 flags |= AVB_SLOT_VERIFY_FLAGS_NO_VBMETA_PARTITION; 513 514 retry_verify: 515 verify_result = 516 avb_slot_verify(ops, 517 requested_partitions, 518 slot_suffix, 519 flags, 520 AVB_HASHTREE_ERROR_MODE_RESTART, 521 &slot_data[0]); 522 if (verify_result != AVB_SLOT_VERIFY_RESULT_OK && 523 verify_result != AVB_SLOT_VERIFY_RESULT_ERROR_PUBLIC_KEY_REJECTED) { 524 if (retry_no_vbmeta_partition && strcmp(boot_partname, "recovery") == 0) { 525 printf("Verify recovery with vbmeta.\n"); 526 flags &= ~AVB_SLOT_VERIFY_FLAGS_NO_VBMETA_PARTITION; 527 retry_no_vbmeta_partition = 0; 528 goto retry_verify; 529 } 530 } 531 532 strcat(verify_state, ANDROID_VERIFY_STATE); 533 switch (verify_result) { 534 case AVB_SLOT_VERIFY_RESULT_OK: 535 if (unlocked & LOCK_MASK) 536 strcat(verify_state, "orange"); 537 else 538 strcat(verify_state, "green"); 539 break; 540 case AVB_SLOT_VERIFY_RESULT_ERROR_PUBLIC_KEY_REJECTED: 541 if (unlocked & LOCK_MASK) 542 strcat(verify_state, "orange"); 543 else 544 strcat(verify_state, "yellow"); 545 break; 546 case AVB_SLOT_VERIFY_RESULT_ERROR_OOM: 547 case AVB_SLOT_VERIFY_RESULT_ERROR_IO: 548 case AVB_SLOT_VERIFY_RESULT_ERROR_INVALID_METADATA: 549 case AVB_SLOT_VERIFY_RESULT_ERROR_UNSUPPORTED_VERSION: 550 case AVB_SLOT_VERIFY_RESULT_ERROR_VERIFICATION: 551 case AVB_SLOT_VERIFY_RESULT_ERROR_ROLLBACK_INDEX: 552 default: 553 if (unlocked & LOCK_MASK) 554 strcat(verify_state, "orange"); 555 else 556 strcat(verify_state, "red"); 557 break; 558 } 559 560 if (!slot_data[0]) { 561 can_boot = 0; 562 goto out; 563 } 564 565 if (verify_result == AVB_SLOT_VERIFY_RESULT_OK || 566 verify_result == AVB_SLOT_VERIFY_RESULT_ERROR_PUBLIC_KEY_REJECTED || 567 (unlocked & LOCK_MASK)) { 568 int len = 0; 569 char *bootargs, *newbootargs; 570 571 if (*slot_data[0]->cmdline) { 572 debug("Kernel command line: %s\n", slot_data[0]->cmdline); 573 len += strlen(slot_data[0]->cmdline); 574 } 575 576 bootargs = env_get("bootargs"); 577 if (bootargs) 578 len += strlen(bootargs); 579 580 newbootargs = malloc(len + 2); 581 582 if (!newbootargs) { 583 puts("Error: malloc in android_slot_verify failed!\n"); 584 return AVB_SLOT_VERIFY_RESULT_ERROR_OOM; 585 } 586 *newbootargs = '\0'; 587 588 if (bootargs) { 589 strcpy(newbootargs, bootargs); 590 strcat(newbootargs, " "); 591 } 592 if (*slot_data[0]->cmdline) 593 strcat(newbootargs, slot_data[0]->cmdline); 594 env_set("bootargs", newbootargs); 595 596 hdr = (void *)slot_data[0]->loaded_partitions->data; 597 598 /* 599 * populate boot_img_hdr_v3 600 * 601 * If allow verification error: the image is loaded by 602 * ops->get_preloaded_partition() which auto populates 603 * boot_img_hdr_v3. 604 * 605 * If not allow verification error: the image is full loaded 606 * by ops->read_from_partition() which doesn't populate 607 * boot_img_hdr_v3, we need to fix it here. 608 */ 609 if (hdr->header_version >= 3 && 610 !(flags & AVB_SLOT_VERIFY_FLAGS_ALLOW_VERIFICATION_ERROR)) { 611 struct andr_img_hdr *v3hdr; 612 struct blk_desc *dev_desc; 613 disk_partition_t part; 614 615 dev_desc = rockchip_get_bootdev(); 616 if (!dev_desc) 617 return -1; 618 619 if (part_get_info_by_name(dev_desc, 620 boot_partname, &part) < 0) 621 return -1; 622 623 v3hdr = populate_andr_img_hdr(dev_desc, &part); 624 if (v3hdr) { 625 memcpy(hdr, v3hdr, sizeof(*v3hdr)); 626 free(v3hdr); 627 } 628 } 629 630 /* Reserve page_size */ 631 load_address -= hdr->page_size; 632 if (android_image_memcpy_separate(hdr, &load_address)) { 633 printf("Failed to separate copy android image\n"); 634 return AVB_SLOT_VERIFY_RESULT_ERROR_IO; 635 } 636 *android_load_address = load_address; 637 } else { 638 slot_set_unbootable(&ab_data.slots[slot_index_to_boot]); 639 } 640 641 out: 642 env_update("bootargs", verify_state); 643 if (save_metadata_if_changed(ops->ab_ops, &ab_data, &ab_data_orig)) { 644 printf("Can not save metadata\n"); 645 verify_result = AVB_SLOT_VERIFY_RESULT_ERROR_IO; 646 } 647 648 if (slot_data[0] != NULL) 649 avb_slot_verify_data_free(slot_data[0]); 650 651 if ((unlocked & LOCK_MASK) && can_boot) 652 return 0; 653 else 654 return verify_result; 655 } 656 #endif 657 658 #if defined(CONFIG_CMD_DTIMG) && defined(CONFIG_OF_LIBFDT_OVERLAY) 659 660 /* 661 * Default return index 0. 662 */ 663 __weak int board_select_fdt_index(ulong dt_table_hdr) 664 { 665 /* 666 * User can use "dt_for_each_entry(entry, hdr, idx)" to iterate 667 * over all dt entry of DT image and pick up which they want. 668 * 669 * Example: 670 * struct dt_table_entry *entry; 671 * int index; 672 * 673 * dt_for_each_entry(entry, dt_table_hdr, index) { 674 * 675 * .... (use entry) 676 * } 677 * 678 * return index; 679 */ 680 return 0; 681 } 682 683 static int android_get_dtbo(ulong *fdt_dtbo, 684 const struct andr_img_hdr *hdr, 685 int *index, const char *part_dtbo) 686 { 687 struct dt_table_header *dt_hdr = NULL; 688 struct blk_desc *dev_desc; 689 disk_partition_t part_info; 690 u32 blk_offset, blk_cnt; 691 void *buf; 692 ulong e_addr; 693 u32 e_size; 694 int e_idx; 695 int ret; 696 697 /* Get partition info */ 698 dev_desc = rockchip_get_bootdev(); 699 if (!dev_desc) 700 return -ENODEV; 701 702 ret = part_get_info_by_name(dev_desc, part_dtbo, &part_info); 703 if (ret < 0) { 704 printf("No %s partition, ret=%d\n", part_dtbo, ret); 705 return ret; 706 } 707 708 /* Check dt table header */ 709 if (!strcmp(part_dtbo, PART_RECOVERY)) 710 blk_offset = part_info.start + 711 (hdr->recovery_dtbo_offset / part_info.blksz); 712 else 713 blk_offset = part_info.start; 714 715 dt_hdr = memalign(ARCH_DMA_MINALIGN, part_info.blksz); 716 if (!dt_hdr) 717 return -ENOMEM; 718 719 ret = blk_dread(dev_desc, blk_offset, 1, dt_hdr); 720 if (ret != 1) 721 goto out1; 722 723 if (!android_dt_check_header((ulong)dt_hdr)) { 724 printf("DTBO: invalid dt table header: 0x%x\n", dt_hdr->magic); 725 ret = -EINVAL; 726 goto out1; 727 } 728 729 #ifdef DEBUG 730 android_dt_print_contents((ulong)dt_hdr); 731 #endif 732 733 blk_cnt = DIV_ROUND_UP(fdt32_to_cpu(dt_hdr->total_size), 734 part_info.blksz); 735 /* Read all DT Image */ 736 buf = memalign(ARCH_DMA_MINALIGN, part_info.blksz * blk_cnt); 737 if (!buf) { 738 ret = -ENOMEM; 739 goto out1; 740 } 741 742 ret = blk_dread(dev_desc, blk_offset, blk_cnt, buf); 743 if (ret != blk_cnt) 744 goto out2; 745 746 e_idx = board_select_fdt_index((ulong)buf); 747 if (e_idx < 0) { 748 printf("%s: failed to select board fdt index\n", __func__); 749 ret = -EINVAL; 750 goto out2; 751 } 752 753 ret = android_dt_get_fdt_by_index((ulong)buf, e_idx, &e_addr, &e_size); 754 if (!ret) { 755 printf("%s: failed to get fdt, index=%d\n", __func__, e_idx); 756 ret = -EINVAL; 757 goto out2; 758 } 759 760 if (fdt_dtbo) 761 *fdt_dtbo = e_addr; 762 if (index) 763 *index = e_idx; 764 765 free(dt_hdr); 766 debug("ANDROID: Loading dt entry to 0x%lx size 0x%x idx %d from \"%s\" part\n", 767 e_addr, e_size, e_idx, part_dtbo); 768 769 return 0; 770 771 out2: 772 free(buf); 773 out1: 774 free(dt_hdr); 775 776 return ret; 777 } 778 779 int android_fdt_overlay_apply(void *fdt_addr) 780 { 781 struct andr_img_hdr *hdr; 782 struct blk_desc *dev_desc; 783 const char *part_boot = PART_BOOT; 784 disk_partition_t part_info; 785 char *fdt_backup; 786 char *part_dtbo = PART_DTBO; 787 char buf[32] = {0}; 788 ulong fdt_dtbo = -1; 789 u32 totalsize; 790 int index = -1; 791 int ret; 792 793 if (rockchip_get_boot_mode() == BOOT_MODE_RECOVERY) { 794 #ifdef CONFIG_ANDROID_AB 795 bool can_find_recovery; 796 797 can_find_recovery = ab_can_find_recovery_part(); 798 part_boot = can_find_recovery ? PART_RECOVERY : PART_BOOT; 799 part_dtbo = can_find_recovery ? PART_RECOVERY : PART_DTBO; 800 #else 801 part_boot = PART_RECOVERY; 802 part_dtbo = PART_RECOVERY; 803 #endif 804 } 805 806 dev_desc = rockchip_get_bootdev(); 807 if (!dev_desc) 808 return -ENODEV; 809 810 ret = part_get_info_by_name(dev_desc, part_boot, &part_info); 811 if (ret < 0) 812 return ret; 813 814 hdr = populate_andr_img_hdr(dev_desc, &part_info); 815 if (!hdr) 816 return -EINVAL; 817 #ifdef DEBUG 818 android_print_contents(hdr); 819 #endif 820 821 /* 822 * recovery_dtbo fields 823 * 824 * boot_img_hdr_v0: unsupported 825 * boot_img_hdr_v1,2: supported 826 * boot_img_hdr_v3 + boot.img: supported 827 * boot_img_hdr_v3 + recovery.img: unsupported 828 */ 829 if ((hdr->header_version == 0) || 830 (hdr->header_version == 3 && !strcmp(part_boot, PART_RECOVERY)) || 831 (hdr->header_version > 3)) 832 goto out; 833 834 ret = android_get_dtbo(&fdt_dtbo, (void *)hdr, &index, part_dtbo); 835 if (!ret) { 836 phys_size_t fdt_size; 837 838 /* Must incease size before overlay */ 839 fdt_size = fdt_totalsize((void *)fdt_addr) + 840 fdt_totalsize((void *)fdt_dtbo); 841 if (sysmem_free((phys_addr_t)fdt_addr)) 842 goto out; 843 844 if (!sysmem_alloc_base(MEM_FDT_DTBO, 845 (phys_addr_t)fdt_addr, 846 fdt_size + CONFIG_SYS_FDT_PAD)) 847 goto out; 848 /* 849 * Backup main fdt in case of being destroyed by 850 * fdt_overlay_apply() when it overlys failed. 851 */ 852 totalsize = fdt_totalsize(fdt_addr); 853 fdt_backup = malloc(totalsize); 854 if (!fdt_backup) 855 goto out; 856 857 memcpy(fdt_backup, fdt_addr, totalsize); 858 fdt_increase_size(fdt_addr, fdt_totalsize((void *)fdt_dtbo)); 859 ret = fdt_overlay_apply(fdt_addr, (void *)fdt_dtbo); 860 if (!ret) { 861 snprintf(buf, 32, "%s%d", "androidboot.dtbo_idx=", index); 862 env_update("bootargs", buf); 863 printf("ANDROID: fdt overlay OK\n"); 864 } else { 865 memcpy(fdt_addr, fdt_backup, totalsize); 866 printf("ANDROID: fdt overlay failed, ret=%d\n", ret); 867 } 868 869 free(fdt_backup); 870 } 871 872 out: 873 free(hdr); 874 875 return 0; 876 } 877 #endif 878 879 int android_image_load_by_partname(struct blk_desc *dev_desc, 880 const char *boot_partname, 881 unsigned long *load_address) 882 { 883 disk_partition_t boot_part; 884 int ret, part_num; 885 886 part_num = part_get_info_by_name(dev_desc, boot_partname, &boot_part); 887 if (part_num < 0) { 888 printf("%s: Can't find part: %s\n", __func__, boot_partname); 889 return -1; 890 } 891 debug("ANDROID: Loading kernel from \"%s\", partition %d.\n", 892 boot_part.name, part_num); 893 894 ret = android_image_load(dev_desc, &boot_part, *load_address, -1UL); 895 if (ret < 0) { 896 debug("%s: %s part load fail, ret=%d\n", 897 __func__, boot_part.name, ret); 898 return ret; 899 } 900 *load_address = ret; 901 902 return 0; 903 } 904 905 int android_bootloader_boot_flow(struct blk_desc *dev_desc, 906 unsigned long load_address) 907 { 908 enum android_boot_mode mode = ANDROID_BOOT_MODE_NORMAL; 909 disk_partition_t misc_part_info; 910 int part_num; 911 char *command_line; 912 char slot_suffix[3] = {0}; 913 const char *mode_cmdline = NULL; 914 char *boot_partname = ANDROID_PARTITION_BOOT; 915 916 /* 917 * 1. Load MISC partition and determine the boot mode 918 * clear its value for the next boot if needed. 919 */ 920 part_num = part_get_info_by_name(dev_desc, ANDROID_PARTITION_MISC, 921 &misc_part_info); 922 if (part_num < 0) { 923 printf("Could not find misc partition\n"); 924 } else { 925 #ifdef CONFIG_ANDROID_KEYMASTER_CA 926 /* load attestation key from misc partition. */ 927 load_attestation_key(dev_desc, &misc_part_info); 928 #endif 929 930 mode = android_bootloader_load_and_clear_mode(dev_desc, 931 &misc_part_info); 932 #ifdef CONFIG_RKIMG_BOOTLOADER 933 if (mode == ANDROID_BOOT_MODE_NORMAL) { 934 if (rockchip_get_boot_mode() == BOOT_MODE_RECOVERY) 935 mode = ANDROID_BOOT_MODE_RECOVERY; 936 } 937 #endif 938 } 939 940 printf("ANDROID: reboot reason: \"%s\"\n", android_boot_mode_str(mode)); 941 #ifdef CONFIG_ANDROID_AB 942 /* Get current slot_suffix */ 943 if (ab_get_slot_suffix(slot_suffix)) 944 return -1; 945 #endif 946 switch (mode) { 947 case ANDROID_BOOT_MODE_NORMAL: 948 /* In normal mode, we load the kernel from "boot" but append 949 * "skip_initramfs" to the cmdline to make it ignore the 950 * recovery initramfs in the boot partition. 951 */ 952 #ifdef CONFIG_ANDROID_AB 953 /* In A/B, the recovery image is built as boot.img, containing the 954 * recovery's ramdisk. Previously, bootloader used the skip_initramfs 955 * kernel command line parameter to decide which mode to boot into. 956 * For Android >=10 and with dynamic partition support, the bootloader 957 * MUST NOT pass skip_initramfs to the kernel command-line. 958 * Instead, bootloader should pass androidboot.force_normal_boot=1 959 * and then Android's first-stage init in ramdisk 960 * will skip recovery and boot normal Android. 961 */ 962 if (ab_is_support_dynamic_partition(dev_desc)) { 963 mode_cmdline = "androidboot.force_normal_boot=1"; 964 } else { 965 mode_cmdline = "skip_initramfs"; 966 } 967 #endif 968 break; 969 case ANDROID_BOOT_MODE_RECOVERY: 970 /* 971 * In recovery mode, if have recovery partition, we still boot the 972 * kernel from "recovery". If not, don't skip the initramfs so it 973 * boots to recovery from image in partition "boot". 974 */ 975 #ifdef CONFIG_ANDROID_AB 976 boot_partname = ab_can_find_recovery_part() ? 977 ANDROID_PARTITION_RECOVERY : ANDROID_PARTITION_BOOT; 978 #else 979 boot_partname = ANDROID_PARTITION_RECOVERY; 980 #endif 981 break; 982 case ANDROID_BOOT_MODE_BOOTLOADER: 983 /* Bootloader mode enters fastboot. If this operation fails we 984 * simply return since we can't recover from this situation by 985 * switching to another slot. 986 */ 987 return android_bootloader_boot_bootloader(); 988 } 989 990 #ifdef CONFIG_ANDROID_AVB 991 uint8_t vboot_flag = 0; 992 disk_partition_t vbmeta_part_info; 993 994 #ifdef CONFIG_OPTEE_CLIENT 995 if (trusty_read_vbootkey_enable_flag(&vboot_flag)) { 996 printf("Can't read vboot flag\n"); 997 return -1; 998 } 999 #endif 1000 if (vboot_flag) { 1001 printf("Vboot=1, SecureBoot enabled, AVB verify\n"); 1002 if (android_slot_verify(boot_partname, &load_address, 1003 slot_suffix)) { 1004 printf("AVB verify failed\n"); 1005 1006 return -1; 1007 } 1008 } else { 1009 part_num = part_get_info_by_name(dev_desc, 1010 ANDROID_PARTITION_VBMETA, 1011 &vbmeta_part_info); 1012 if (part_num < 0) { 1013 printf("Not AVB images, AVB skip\n"); 1014 env_update("bootargs", 1015 "androidboot.verifiedbootstate=orange"); 1016 if (android_image_load_by_partname(dev_desc, 1017 boot_partname, 1018 &load_address)) { 1019 printf("Android image load failed\n"); 1020 return -1; 1021 } 1022 } else { 1023 printf("Vboot=0, AVB images, AVB verify\n"); 1024 if (android_slot_verify(boot_partname, &load_address, 1025 slot_suffix)) { 1026 printf("AVB verify failed\n"); 1027 1028 return -1; 1029 } 1030 } 1031 } 1032 #else 1033 /* 1034 * 2. Load the boot/recovery from the desired "boot" partition. 1035 * Determine if this is an AOSP image. 1036 */ 1037 if (android_image_load_by_partname(dev_desc, 1038 boot_partname, 1039 &load_address)) { 1040 printf("Android image load failed\n"); 1041 return -1; 1042 } 1043 #endif 1044 1045 #ifdef CONFIG_ANDROID_AB 1046 ab_update_root_uuid(); 1047 #endif 1048 1049 /* Set Android root variables. */ 1050 env_set_ulong("android_root_devnum", dev_desc->devnum); 1051 env_set("android_slotsufix", slot_suffix); 1052 1053 #ifdef CONFIG_FASTBOOT_OEM_UNLOCK 1054 /* read oem unlock status and attach to bootargs */ 1055 uint8_t unlock = 0; 1056 TEEC_Result result; 1057 char oem_unlock[OEM_UNLOCK_ARG_SIZE] = {0}; 1058 result = trusty_read_oem_unlock(&unlock); 1059 if (result) { 1060 printf("read oem unlock status with error : 0x%x\n", result); 1061 } else { 1062 snprintf(oem_unlock, OEM_UNLOCK_ARG_SIZE, "androidboot.oem_unlocked=%d", unlock); 1063 env_update("bootargs", oem_unlock); 1064 } 1065 #endif 1066 1067 /* Assemble the command line */ 1068 command_line = android_assemble_cmdline(slot_suffix, mode_cmdline); 1069 env_update("bootargs", command_line); 1070 1071 debug("ANDROID: bootargs: \"%s\"\n", command_line); 1072 1073 #ifdef CONFIG_SUPPORT_OEM_DTB 1074 if (android_bootloader_get_fdt(ANDROID_PARTITION_OEM, 1075 ANDROID_ARG_FDT_FILENAME)) { 1076 printf("Can not get the fdt data from oem!\n"); 1077 } 1078 #endif 1079 #ifdef CONFIG_OPTEE_CLIENT 1080 if (trusty_notify_optee_uboot_end()) 1081 printf("Close optee client failed!\n"); 1082 #endif 1083 1084 #ifdef CONFIG_AMP 1085 return android_bootloader_boot_kernel(load_address); 1086 #else 1087 android_bootloader_boot_kernel(load_address); 1088 1089 /* TODO: If the kernel doesn't boot mark the selected slot as bad. */ 1090 return -1; 1091 #endif 1092 } 1093 1094 int android_avb_boot_flow(unsigned long kernel_address) 1095 { 1096 struct blk_desc *dev_desc; 1097 disk_partition_t boot_part_info; 1098 int ret; 1099 1100 dev_desc = rockchip_get_bootdev(); 1101 if (!dev_desc) { 1102 printf("%s: dev_desc is NULL!\n", __func__); 1103 return -1; 1104 } 1105 1106 /* Load the kernel from the desired "boot" partition. */ 1107 ret = part_get_info_by_name(dev_desc, ANDROID_PARTITION_BOOT, 1108 &boot_part_info); 1109 if (ret < 0) { 1110 printf("%s: failed to get boot part\n", __func__); 1111 return ret; 1112 } 1113 1114 ret = android_image_load(dev_desc, &boot_part_info, 1115 kernel_address, -1UL); 1116 if (ret < 0) { 1117 printf("Android avb boot failed, error %d.\n", ret); 1118 return ret; 1119 } 1120 1121 android_bootloader_boot_kernel(kernel_address); 1122 1123 /* TODO: If the kernel doesn't boot mark the selected slot as bad. */ 1124 return -1; 1125 } 1126 1127 int android_boot_flow(unsigned long kernel_address) 1128 { 1129 struct blk_desc *dev_desc; 1130 disk_partition_t boot_part_info; 1131 int ret; 1132 1133 dev_desc = rockchip_get_bootdev(); 1134 if (!dev_desc) { 1135 printf("%s: dev_desc is NULL!\n", __func__); 1136 return -1; 1137 } 1138 /* Load the kernel from the desired "boot" partition. */ 1139 ret = part_get_info_by_name(dev_desc, ANDROID_PARTITION_BOOT, 1140 &boot_part_info); 1141 if (ret < 0) { 1142 printf("%s: failed to get boot part\n", __func__); 1143 return ret; 1144 } 1145 1146 ret = android_image_load(dev_desc, &boot_part_info, kernel_address, 1147 -1UL); 1148 if (ret < 0) 1149 return ret; 1150 1151 android_bootloader_boot_kernel(kernel_address); 1152 1153 /* TODO: If the kernel doesn't boot mark the selected slot as bad. */ 1154 return -1; 1155 } 1156