1 /* 2 * Copyright (c) 2011 Sebastian Andrzej Siewior <bigeasy@linutronix.de> 3 * 4 * SPDX-License-Identifier: GPL-2.0+ 5 */ 6 7 #include <common.h> 8 #include <image.h> 9 #include <android_image.h> 10 #include <android_bootloader.h> 11 #include <malloc.h> 12 #include <mapmem.h> 13 #include <errno.h> 14 #include <boot_rkimg.h> 15 #include <crypto.h> 16 #include <sysmem.h> 17 #include <u-boot/sha1.h> 18 #ifdef CONFIG_RKIMG_BOOTLOADER 19 #include <asm/arch/resource_img.h> 20 #endif 21 #ifdef CONFIG_RK_AVB_LIBAVB_USER 22 #include <android_avb/avb_slot_verify.h> 23 #include <android_avb/avb_ops_user.h> 24 #include <android_avb/rk_avb_ops_user.h> 25 #endif 26 #include <optee_include/OpteeClientInterface.h> 27 28 DECLARE_GLOBAL_DATA_PTR; 29 30 #define ANDROID_IMAGE_DEFAULT_KERNEL_ADDR 0x10008000 31 #define ANDROID_ARG_FDT_FILENAME "rk-kernel.dtb" 32 #define ANDROID_Q_VER 10 33 34 /* Defined by rockchip legacy mkboot tool(SDK version < 8.1) */ 35 #define ANDROID_ROCKCHIP_LEGACY_PAGE_SIZE 0x4000 36 37 static char andr_tmp_str[ANDR_BOOT_ARGS_SIZE + 1]; 38 static u32 android_kernel_comp_type = IH_COMP_NONE; 39 40 u32 android_image_major_version(void) 41 { 42 /* MSB 7-bits */ 43 return gd->bd->bi_andr_version >> 25; 44 } 45 46 u32 android_bcb_msg_sector_offset(void) 47 { 48 /* 49 * Rockchip platforms defines BCB message at the 16KB offset of 50 * misc partition while the Google defines it at 0x0 offset. 51 * 52 * From Android-Q, the 0x0 offset is mandary on Google VTS, so that 53 * this is a compatibility according to android image 'os_version'. 54 */ 55 #ifdef CONFIG_RKIMG_BOOTLOADER 56 return (android_image_major_version() >= ANDROID_Q_VER) ? 0x0 : 0x20; 57 #else 58 return 0x0; 59 #endif 60 } 61 62 static ulong android_image_get_kernel_addr(const struct andr_img_hdr *hdr) 63 { 64 /* 65 * All the Android tools that generate a boot.img use this 66 * address as the default. 67 * 68 * Even though it doesn't really make a lot of sense, and it 69 * might be valid on some platforms, we treat that address as 70 * the default value for this field, and try to execute the 71 * kernel in place in such a case. 72 * 73 * Otherwise, we will return the actual value set by the user. 74 */ 75 if (hdr->kernel_addr == ANDROID_IMAGE_DEFAULT_KERNEL_ADDR) 76 return (ulong)hdr + hdr->page_size; 77 78 #ifdef CONFIG_ARCH_ROCKCHIP 79 /* 80 * If kernel is compressed, kernel_addr is set as decompressed address 81 * after compressed being loaded to ram, so let's use it. 82 */ 83 if (android_kernel_comp_type != IH_COMP_NONE && 84 android_kernel_comp_type != IH_COMP_ZIMAGE) 85 return hdr->kernel_addr; 86 87 /* 88 * Compatble with rockchip legacy packing with kernel/ramdisk/second 89 * address base from 0x60000000(SDK versiont < 8.1), these are invalid 90 * address, so we calc it by real size. 91 */ 92 return (ulong)hdr + hdr->page_size; 93 #else 94 return hdr->kernel_addr; 95 #endif 96 97 } 98 99 void android_image_set_comp(struct andr_img_hdr *hdr, u32 comp) 100 { 101 android_kernel_comp_type = comp; 102 } 103 104 u32 android_image_get_comp(const struct andr_img_hdr *hdr) 105 { 106 return android_kernel_comp_type; 107 } 108 109 int android_image_parse_kernel_comp(const struct andr_img_hdr *hdr) 110 { 111 ulong kaddr = android_image_get_kernel_addr(hdr); 112 return bootm_parse_comp((const unsigned char *)kaddr); 113 } 114 115 /** 116 * android_image_get_kernel() - processes kernel part of Android boot images 117 * @hdr: Pointer to image header, which is at the start 118 * of the image. 119 * @verify: Checksum verification flag. Currently unimplemented. 120 * @os_data: Pointer to a ulong variable, will hold os data start 121 * address. 122 * @os_len: Pointer to a ulong variable, will hold os data length. 123 * 124 * This function returns the os image's start address and length. Also, 125 * it appends the kernel command line to the bootargs env variable. 126 * 127 * Return: Zero, os start address and length on success, 128 * otherwise on failure. 129 */ 130 int android_image_get_kernel(const struct andr_img_hdr *hdr, int verify, 131 ulong *os_data, ulong *os_len) 132 { 133 u32 kernel_addr = android_image_get_kernel_addr(hdr); 134 135 /* 136 * Not all Android tools use the id field for signing the image with 137 * sha1 (or anything) so we don't check it. It is not obvious that the 138 * string is null terminated so we take care of this. 139 */ 140 strncpy(andr_tmp_str, hdr->name, ANDR_BOOT_NAME_SIZE); 141 andr_tmp_str[ANDR_BOOT_NAME_SIZE] = '\0'; 142 if (strlen(andr_tmp_str)) 143 printf("Android's image name: %s\n", andr_tmp_str); 144 145 printf("Kernel load addr 0x%08x size %u KiB\n", 146 kernel_addr, DIV_ROUND_UP(hdr->kernel_size, 1024)); 147 148 int len = 0; 149 if (*hdr->cmdline) { 150 debug("Kernel command line: %s\n", hdr->cmdline); 151 len += strlen(hdr->cmdline); 152 } 153 154 char *bootargs = env_get("bootargs"); 155 if (bootargs) 156 len += strlen(bootargs); 157 158 char *newbootargs = malloc(len + 2); 159 if (!newbootargs) { 160 puts("Error: malloc in android_image_get_kernel failed!\n"); 161 return -ENOMEM; 162 } 163 *newbootargs = '\0'; 164 165 if (bootargs) { 166 strcpy(newbootargs, bootargs); 167 strcat(newbootargs, " "); 168 } 169 if (*hdr->cmdline) 170 strcat(newbootargs, hdr->cmdline); 171 172 env_set("bootargs", newbootargs); 173 174 if (os_data) { 175 *os_data = (ulong)hdr; 176 *os_data += hdr->page_size; 177 } 178 if (os_len) 179 *os_len = hdr->kernel_size; 180 return 0; 181 } 182 183 int android_image_check_header(const struct andr_img_hdr *hdr) 184 { 185 return memcmp(ANDR_BOOT_MAGIC, hdr->magic, ANDR_BOOT_MAGIC_SIZE); 186 } 187 188 ulong android_image_get_end(const struct andr_img_hdr *hdr) 189 { 190 ulong end; 191 /* 192 * The header takes a full page, the remaining components are aligned 193 * on page boundary 194 */ 195 end = (ulong)hdr; 196 end += hdr->page_size; 197 end += ALIGN(hdr->kernel_size, hdr->page_size); 198 end += ALIGN(hdr->ramdisk_size, hdr->page_size); 199 end += ALIGN(hdr->second_size, hdr->page_size); 200 201 if (hdr->header_version >= 1) 202 end += ALIGN(hdr->recovery_dtbo_size, hdr->page_size); 203 204 return end; 205 } 206 207 u32 android_image_get_ksize(const struct andr_img_hdr *hdr) 208 { 209 return hdr->kernel_size; 210 } 211 212 void android_image_set_kload(struct andr_img_hdr *hdr, u32 load_address) 213 { 214 hdr->kernel_addr = load_address; 215 } 216 217 ulong android_image_get_kload(const struct andr_img_hdr *hdr) 218 { 219 return android_image_get_kernel_addr(hdr); 220 } 221 222 int android_image_get_ramdisk(const struct andr_img_hdr *hdr, 223 ulong *rd_data, ulong *rd_len) 224 { 225 ulong ramdisk_addr_r; 226 227 if (!hdr->ramdisk_size) { 228 *rd_data = *rd_len = 0; 229 return -1; 230 } 231 232 /* Have been loaded by android_image_load_separate() on ramdisk_addr_r */ 233 ramdisk_addr_r = env_get_ulong("ramdisk_addr_r", 16, 0); 234 if (!ramdisk_addr_r) { 235 printf("No Found Ramdisk Load Address.\n"); 236 return -1; 237 } 238 239 *rd_data = ramdisk_addr_r; 240 *rd_len = hdr->ramdisk_size; 241 242 printf("RAM disk load addr 0x%08lx size %u KiB\n", 243 *rd_data, DIV_ROUND_UP(hdr->ramdisk_size, 1024)); 244 245 return 0; 246 } 247 248 int android_image_get_fdt(const struct andr_img_hdr *hdr, 249 ulong *rd_data) 250 { 251 ulong fdt_addr_r; 252 253 if (!hdr->second_size) { 254 *rd_data = 0; 255 return -1; 256 } 257 258 /* Have been loaded by android_image_load_separate() on fdt_addr_r */ 259 fdt_addr_r = env_get_ulong("fdt_addr_r", 16, 0); 260 if (!fdt_addr_r) { 261 printf("No Found FDT Load Address.\n"); 262 return -1; 263 } 264 265 *rd_data = fdt_addr_r; 266 267 debug("FDT load addr 0x%08x size %u KiB\n", 268 hdr->second_addr, DIV_ROUND_UP(hdr->second_size, 1024)); 269 270 return 0; 271 } 272 273 #ifdef CONFIG_ANDROID_BOOT_IMAGE_HASH 274 static void print_hash(const char *label, u8 *hash, int len) 275 { 276 int i; 277 278 printf("%s:\n 0x", label ? : "Hash"); 279 for (i = 0; i < len; i++) 280 printf("%02x", hash[i]); 281 printf("\n"); 282 } 283 284 /* 285 * This is only for Non-AVB image, because AVB image is verified by AVB bootflow. 286 * The kernel/ramdisk/second address should be the real address in hdr before 287 * calling this function. 288 * 289 * mkbootimg tool always use SHA1 for images. 290 */ 291 static int android_image_hash_verify(struct andr_img_hdr *hdr) 292 { 293 u8 hash[20]; 294 295 #ifdef DEBUG 296 android_print_contents(hdr); 297 #endif 298 299 if (hdr->kernel_addr == ANDROID_IMAGE_DEFAULT_KERNEL_ADDR) { 300 printf("No real image address in android hdr\n"); 301 return -EINVAL; 302 } 303 304 #ifdef CONFIG_DM_CRYPTO 305 struct udevice *dev; 306 sha_context ctx; 307 308 dev = crypto_get_device(CRYPTO_SHA1); 309 if (!dev) { 310 printf("Can't find crypto device for SHA1 capability\n"); 311 return -ENODEV; 312 } 313 314 ctx.algo = CRYPTO_SHA1; 315 ctx.length = hdr->kernel_size + sizeof(hdr->kernel_size) + 316 hdr->ramdisk_size + sizeof(hdr->ramdisk_size) + 317 hdr->second_size + sizeof(hdr->second_size); 318 #ifdef CONFIG_HASH_ROCKCHIP_LEGACY 319 ctx.length += sizeof(hdr->tags_addr) + sizeof(hdr->page_size) + 320 sizeof(hdr->unused) + sizeof(hdr->name) + 321 sizeof(hdr->cmdline); 322 #endif 323 324 crypto_sha_init(dev, &ctx); 325 326 crypto_sha_update(dev, (u32 *)(ulong)hdr->kernel_addr, 327 hdr->kernel_size); 328 crypto_sha_update(dev, (u32 *)&hdr->kernel_size, 329 sizeof(hdr->kernel_size)); 330 crypto_sha_update(dev, (u32 *)(ulong)hdr->ramdisk_addr, 331 hdr->ramdisk_size); 332 crypto_sha_update(dev, (u32 *)&hdr->ramdisk_size, 333 sizeof(hdr->ramdisk_size)); 334 crypto_sha_update(dev, (u32 *)(ulong)hdr->second_addr, 335 hdr->second_size); 336 crypto_sha_update(dev, (u32 *)&hdr->second_size, 337 sizeof(hdr->second_size)); 338 #ifdef CONFIG_HASH_ROCKCHIP_LEGACY 339 crypto_sha_update(dev, (u32 *)&hdr->tags_addr, sizeof(hdr->tags_addr)); 340 crypto_sha_update(dev, (u32 *)&hdr->page_size, sizeof(hdr->page_size)); 341 crypto_sha_update(dev, (u32 *)&hdr->header_version, 342 sizeof(hdr->header_version)); 343 crypto_sha_update(dev, (u32 *)&hdr->os_version, sizeof(hdr->os_version)); 344 crypto_sha_update(dev, (u32 *)&hdr->name, sizeof(hdr->name)); 345 crypto_sha_update(dev, (u32 *)&hdr->cmdline, sizeof(hdr->cmdline)); 346 #endif 347 348 crypto_sha_final(dev, &ctx, hash); 349 350 #elif CONFIG_SHA1 351 sha1_context ctx; 352 353 sha1_starts(&ctx); 354 sha1_update(&ctx, (u8 *)(ulong)hdr->kernel_addr, hdr->kernel_size); 355 sha1_update(&ctx, (u8 *)&hdr->kernel_size, sizeof(hdr->kernel_size)); 356 sha1_update(&ctx, (u8 *)(ulong)hdr->ramdisk_addr, hdr->ramdisk_size); 357 sha1_update(&ctx, (u8 *)&hdr->ramdisk_size, sizeof(hdr->ramdisk_size)); 358 sha1_update(&ctx, (u8 *)(ulong)hdr->second_addr, hdr->second_size); 359 sha1_update(&ctx, (u8 *)&hdr->second_size, sizeof(hdr->second_size)); 360 #ifdef CONFIG_HASH_ROCKCHIP_LEGACY 361 sha1_update(&ctx, (u8 *)&hdr->tags_addr, sizeof(hdr->tags_addr)); 362 sha1_update(&ctx, (u8 *)&hdr->page_size, sizeof(hdr->page_size)); 363 sha1_update(&ctx, (u8 *)&hdr->header_version, 364 sizeof(hdr->header_version)); 365 sha1_update(&ctx, (u8 *)&hdr->os_version, sizeof(hdr->os_version)); 366 sha1_update(&ctx, (u8 *)&hdr->name, sizeof(hdr->name)); 367 sha1_update(&ctx, (u8 *)&hdr->cmdline, sizeof(hdr->cmdline)); 368 #endif 369 370 sha1_finish(&ctx, hash); 371 #endif /* CONFIG_SHA1 */ 372 373 if (memcmp(hash, hdr->id, 20)) { 374 print_hash("SHA1 from image header", (u8 *)hdr->id, 20); 375 print_hash("SHA1 real", (u8 *)hash, 20); 376 return -EBADFD; 377 } 378 379 return 0; 380 } 381 #endif 382 383 static int android_image_separate(struct andr_img_hdr *hdr, 384 const disk_partition_t *part, 385 void *load_address, 386 void *ram_base) 387 { 388 struct blk_desc *dev_desc = rockchip_get_bootdev(); 389 ulong ramdisk_addr_r = env_get_ulong("ramdisk_addr_r", 16, 0); 390 char *fdt_high = env_get("fdt_high"); 391 char *ramdisk_high = env_get("initrd_high"); 392 ulong blk_start, blk_cnt, size; 393 ulong start, second_addr_r = 0; 394 int ret; 395 396 if (android_image_check_header(hdr)) { 397 printf("Bad android image header\n"); 398 return -EINVAL; 399 } 400 401 if (hdr->kernel_size) { 402 size = hdr->kernel_size + hdr->page_size; 403 blk_cnt = DIV_ROUND_UP(size, dev_desc->blksz); 404 if (!sysmem_alloc_base(MEMBLK_ID_KERNEL, 405 (phys_addr_t)load_address, 406 blk_cnt * dev_desc->blksz)) 407 return -ENXIO; 408 409 if (ram_base) { 410 start = (ulong)ram_base; 411 memcpy((char *)load_address, (char *)start, size); 412 } else { 413 blk_start = part->start; 414 ret = blk_dread(dev_desc, blk_start, 415 blk_cnt, load_address); 416 if (ret != blk_cnt) { 417 printf("%s: read kernel failed, ret=%d\n", 418 __func__, ret); 419 return -1; 420 } 421 } 422 } 423 424 if (hdr->ramdisk_size) { 425 size = hdr->page_size + ALIGN(hdr->kernel_size, hdr->page_size); 426 blk_cnt = DIV_ROUND_UP(hdr->ramdisk_size, dev_desc->blksz); 427 if (!sysmem_alloc_base(MEMBLK_ID_RAMDISK, 428 ramdisk_addr_r, 429 blk_cnt * dev_desc->blksz)) 430 return -ENXIO; 431 if (ram_base) { 432 start = (unsigned long)ram_base; 433 start += hdr->page_size; 434 start += ALIGN(hdr->kernel_size, hdr->page_size); 435 memcpy((char *)ramdisk_addr_r, 436 (char *)start, hdr->ramdisk_size); 437 } else { 438 blk_start = part->start + 439 DIV_ROUND_UP(size, dev_desc->blksz); 440 ret = blk_dread(dev_desc, blk_start, 441 blk_cnt, (void *)ramdisk_addr_r); 442 if (ret != blk_cnt) { 443 printf("%s: read ramdisk failed, ret=%d\n", 444 __func__, ret); 445 return -1; 446 } 447 } 448 } 449 450 /* 451 * Load dtb file by rockchip_read_dtb_file() which support pack 452 * dtb in second position or resource file. 453 */ 454 #ifdef CONFIG_RKIMG_BOOTLOADER 455 ulong fdt_addr_r = env_get_ulong("fdt_addr_r", 16, 0); 456 457 if (hdr->second_size && (gd->fdt_blob != (void *)fdt_addr_r)) { 458 ulong fdt_size; 459 460 fdt_size = rockchip_read_dtb_file((void *)fdt_addr_r); 461 if (fdt_size < 0) { 462 printf("%s: read fdt failed\n", __func__); 463 return ret; 464 } 465 } 466 #endif 467 468 #ifdef CONFIG_ANDROID_BOOT_IMAGE_HASH 469 if (hdr->second_size) { 470 ulong blk_start, blk_cnt; 471 472 /* Just for image data hash calculation */ 473 second_addr_r = (ulong)malloc(hdr->second_size); 474 if (!second_addr_r) 475 return -ENOMEM; 476 477 size = hdr->page_size + 478 ALIGN(hdr->kernel_size, hdr->page_size) + 479 ALIGN(hdr->ramdisk_size, hdr->page_size); 480 blk_cnt = DIV_ROUND_UP(hdr->second_size, dev_desc->blksz); 481 482 if (ram_base) { 483 start = (unsigned long)ram_base; 484 start += hdr->page_size; 485 start += ALIGN(hdr->kernel_size, hdr->page_size); 486 start += ALIGN(hdr->ramdisk_size, hdr->page_size); 487 memcpy((char *)second_addr_r, 488 (char *)start, hdr->second_size); 489 } else { 490 blk_start = part->start + 491 DIV_ROUND_UP(size, dev_desc->blksz); 492 ret = blk_dread(dev_desc, blk_start, blk_cnt, 493 (void *)second_addr_r); 494 if (ret != blk_cnt) { 495 printf("%s: read second pos failed, ret=%d\n", 496 __func__, ret); 497 return -1; 498 } 499 } 500 } 501 #endif 502 503 /* 504 * Update hdr with real image address. 505 * 506 * kernel_addr depends on load_address can handle both the 507 * compressed and no-compressed kernel position. 508 */ 509 hdr->kernel_addr = (ulong)load_address + hdr->page_size; 510 hdr->second_addr = second_addr_r; 511 hdr->ramdisk_addr = ramdisk_addr_r; 512 513 /* 514 * Since images are loaded separate, fdt/ramdisk relocation 515 * can be disabled, it saves boot time. 516 */ 517 if (!fdt_high) { 518 env_set_hex("fdt_high", -1UL); 519 printf("Fdt "); 520 } 521 if (!ramdisk_high) { 522 env_set_hex("initrd_high", -1UL); 523 printf("Ramdisk "); 524 } 525 if (!fdt_high || !ramdisk_high) 526 printf("skip relocation\n"); 527 528 return 0; 529 } 530 531 /* 532 * 'boot_android' cmd use "kernel_addr_r" as default load address ! 533 * We update it according to compress type and "kernel_addr_c/r". 534 */ 535 int android_image_parse_comp(struct andr_img_hdr *hdr, ulong *load_addr) 536 { 537 ulong kernel_addr_c; 538 int comp; 539 540 kernel_addr_c = env_get_ulong("kernel_addr_c", 16, 0); 541 comp = android_image_parse_kernel_comp(hdr); 542 543 #ifdef CONFIG_ARM64 544 /* 545 * On 64-bit kernel, assuming use IMAGE by default. 546 * 547 * kernel_addr_c is for LZ4-IMAGE but maybe not defined. 548 * kernel_addr_r is for IMAGE. 549 */ 550 if (comp != IH_COMP_NONE) { 551 ulong comp_addr; 552 553 if (kernel_addr_c) { 554 comp_addr = kernel_addr_c; 555 } else { 556 printf("Warn: No \"kernel_addr_c\"\n"); 557 comp_addr = CONFIG_SYS_SDRAM_BASE + 0x2000000;/* 32M */ 558 env_set_ulong("kernel_addr_c", comp_addr); 559 } 560 561 *load_addr = comp_addr - hdr->page_size; 562 } 563 #else 564 /* 565 * On 32-bit kernel, assuming use zImage by default. 566 * 567 * kernel_addr_c is for LZ4/zImage but maybe not defined. 568 * kernel_addr_r is for zImage when kernel_addr_c is not defined. 569 * kernel_addr_r is for IMAGE when kernel_addr_c is defined. 570 */ 571 if (comp == IH_COMP_NONE) { 572 if (kernel_addr_c) 573 *load_addr = env_get_ulong("kernel_addr_r", 16, 0); 574 else 575 *load_addr = CONFIG_SYS_SDRAM_BASE + 0x8000; 576 } else { 577 if (kernel_addr_c) 578 *load_addr = kernel_addr_c - hdr->page_size; 579 } 580 #endif 581 582 env_set_ulong("os_comp", comp); 583 return comp; 584 } 585 586 void android_image_set_decomp(struct andr_img_hdr *hdr, int comp) 587 { 588 ulong kernel_addr_r; 589 590 /* zImage handles decompress itself */ 591 if (comp != IH_COMP_NONE && comp != IH_COMP_ZIMAGE) { 592 kernel_addr_r = env_get_ulong("kernel_addr_r", 16, 0x02080000); 593 android_image_set_kload(hdr, kernel_addr_r); 594 android_image_set_comp(hdr, comp); 595 } else { 596 android_image_set_comp(hdr, IH_COMP_NONE); 597 } 598 } 599 600 static int android_image_load_separate(struct andr_img_hdr *hdr, 601 const disk_partition_t *part, 602 void *load_addr) 603 { 604 return android_image_separate(hdr, part, load_addr, NULL); 605 } 606 607 int android_image_memcpy_separate(struct andr_img_hdr *hdr, ulong *load_addr) 608 { 609 ulong comp_addr = *load_addr; 610 int comp; 611 612 comp = android_image_parse_comp(hdr, &comp_addr); 613 if (android_image_separate(hdr, NULL, (void *)comp_addr, hdr)) 614 return -1; 615 616 *load_addr = comp_addr; 617 android_image_set_decomp((void *)comp_addr, comp); 618 619 return 0; 620 } 621 622 long android_image_load(struct blk_desc *dev_desc, 623 const disk_partition_t *part_info, 624 unsigned long load_address, 625 unsigned long max_size) { 626 struct andr_img_hdr *hdr; 627 u32 blksz = dev_desc->blksz; 628 u32 pszcnt, hdrcnt, kercnt; 629 int comp, ret; 630 631 if (max_size < part_info->blksz) 632 return -1; 633 634 /* 635 * read Android image header and leave enough space for page_size align 636 * and kernel image header(1 block maybe enough). 637 * 638 * ANDROID_ROCKCHIP_LEGACY_PAGE_SIZE is defined by rockchip legacy 639 * mkboot tool(SDK version < 8.1) and larger than Google defined. 640 * 641 * To compatible this, we malloc enough buffer but only read android 642 * header and kernel image(1 block) from storage(ignore page size). 643 */ 644 kercnt = 1; 645 hdrcnt = DIV_ROUND_UP(sizeof(*hdr), blksz); 646 pszcnt = DIV_ROUND_UP(ANDROID_ROCKCHIP_LEGACY_PAGE_SIZE, blksz); 647 648 hdr = memalign(ARCH_DMA_MINALIGN, (hdrcnt + pszcnt + kercnt) * blksz); 649 if (!hdr) { 650 printf("No memory\n"); 651 return -1; 652 } 653 654 if (blk_dread(dev_desc, part_info->start, hdrcnt, hdr) != hdrcnt) { 655 printf("Failed to read image header\n"); 656 goto fail; 657 } 658 659 if (android_image_check_header(hdr) != 0) { 660 printf("** Invalid Android Image header **\n"); 661 goto fail; 662 } 663 664 /* 665 * Update and skip pszcnt(hdr is included) according to hdr->page_size, 666 * reading kernel image for compress validation. 667 */ 668 pszcnt = DIV_ROUND_UP(hdr->page_size, blksz); 669 if (blk_dread(dev_desc, part_info->start + pszcnt, kercnt, 670 (void *)((ulong)hdr + hdr->page_size)) != kercnt) { 671 printf("Failed to read kernel header\n"); 672 goto fail; 673 } 674 675 load_address -= hdr->page_size; 676 677 /* Let's load kernel now ! */ 678 comp = android_image_parse_comp(hdr, &load_address); 679 ret = android_image_load_separate(hdr, part_info, (void *)load_address); 680 if (ret) { 681 printf("Failed to load android image\n"); 682 goto fail; 683 } 684 android_image_set_decomp((void *)load_address, comp); 685 686 debug("Loading Android Image to 0x%08lx\n", load_address); 687 688 /* Verify image hash */ 689 #ifdef CONFIG_ANDROID_BOOT_IMAGE_HASH 690 if (android_image_hash_verify(hdr)) { 691 printf("HASH: Image verify failed!\n"); 692 return -EBADFD; 693 } 694 695 printf("HASH: Image verify OK\n"); 696 #endif 697 698 free(hdr); 699 return load_address; 700 701 fail: 702 free(hdr); 703 return -1; 704 } 705 706 #if !defined(CONFIG_SPL_BUILD) 707 /** 708 * android_print_contents - prints out the contents of the Android format image 709 * @hdr: pointer to the Android format image header 710 * 711 * android_print_contents() formats a multi line Android image contents 712 * description. 713 * The routine prints out Android image properties 714 * 715 * returns: 716 * no returned results 717 */ 718 void android_print_contents(const struct andr_img_hdr *hdr) 719 { 720 const char * const p = IMAGE_INDENT_STRING; 721 /* os_version = ver << 11 | lvl */ 722 u32 os_ver = hdr->os_version >> 11; 723 u32 os_lvl = hdr->os_version & ((1U << 11) - 1); 724 u32 header_version = hdr->header_version; 725 726 printf("%skernel size: %x\n", p, hdr->kernel_size); 727 printf("%skernel address: %x\n", p, hdr->kernel_addr); 728 printf("%sramdisk size: %x\n", p, hdr->ramdisk_size); 729 printf("%sramdisk addrress: %x\n", p, hdr->ramdisk_addr); 730 printf("%ssecond size: %x\n", p, hdr->second_size); 731 printf("%ssecond address: %x\n", p, hdr->second_addr); 732 printf("%stags address: %x\n", p, hdr->tags_addr); 733 printf("%spage size: %x\n", p, hdr->page_size); 734 printf("%sheader_version: %x\n", p, header_version); 735 /* ver = A << 14 | B << 7 | C (7 bits for each of A, B, C) 736 * lvl = ((Y - 2000) & 127) << 4 | M (7 bits for Y, 4 bits for M) */ 737 printf("%sos_version: %x (ver: %u.%u.%u, level: %u.%u)\n", 738 p, hdr->os_version, 739 (os_ver >> 7) & 0x7F, (os_ver >> 14) & 0x7F, os_ver & 0x7F, 740 (os_lvl >> 4) + 2000, os_lvl & 0x0F); 741 printf("%sname: %s\n", p, hdr->name); 742 printf("%scmdline: %s\n", p, hdr->cmdline); 743 744 if (header_version >= 1) { 745 printf("%srecovery dtbo size: %x\n", p, hdr->recovery_dtbo_size); 746 printf("%srecovery dtbo offset: %llx\n", p, hdr->recovery_dtbo_offset); 747 printf("%sheader size: %x\n", p, hdr->header_size); 748 } 749 750 if (header_version >= 2) { 751 printf("%sdtb size: %x\n", p, hdr->dtb_size); 752 printf("%sdtb addr: %llx\n", p, hdr->dtb_addr); 753 } 754 } 755 #endif 756