1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * (C) Copyright 2000-2009 4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 5 */ 6 7 #ifndef USE_HOSTCC 8 #include <common.h> 9 #include <bootstage.h> 10 #include <bzlib.h> 11 #include <errno.h> 12 #include <fdt_support.h> 13 #include <lmb.h> 14 #include <malloc.h> 15 #include <mapmem.h> 16 #include <asm/io.h> 17 #include <linux/lzo.h> 18 #include <lzma/LzmaTypes.h> 19 #include <lzma/LzmaDec.h> 20 #include <lzma/LzmaTools.h> 21 #if defined(CONFIG_CMD_USB) 22 #include <usb.h> 23 #endif 24 #else 25 #include "mkimage.h" 26 #endif 27 28 #include <command.h> 29 #include <bootm.h> 30 #include <image.h> 31 32 #ifndef CONFIG_SYS_BOOTM_LEN 33 /* use 8MByte as default max gunzip size */ 34 #define CONFIG_SYS_BOOTM_LEN 0x800000 35 #endif 36 37 #define IH_INITRD_ARCH IH_ARCH_DEFAULT 38 39 #ifndef USE_HOSTCC 40 41 DECLARE_GLOBAL_DATA_PTR; 42 43 bootm_headers_t images; /* pointers to os/initrd/fdt images */ 44 45 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc, 46 char * const argv[], bootm_headers_t *images, 47 ulong *os_data, ulong *os_len); 48 49 __weak void board_quiesce_devices(void) 50 { 51 } 52 53 #ifdef CONFIG_LMB 54 static void boot_start_lmb(bootm_headers_t *images) 55 { 56 ulong mem_start; 57 phys_size_t mem_size; 58 59 mem_start = env_get_bootm_low(); 60 mem_size = env_get_bootm_size(); 61 62 lmb_init_and_reserve(&images->lmb, (phys_addr_t)mem_start, mem_size, 63 NULL); 64 } 65 #else 66 #define lmb_reserve(lmb, base, size) 67 static inline void boot_start_lmb(bootm_headers_t *images) { } 68 #endif 69 70 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, 71 char * const argv[]) 72 { 73 memset((void *)&images, 0, sizeof(images)); 74 images.verify = env_get_yesno("verify"); 75 76 boot_start_lmb(&images); 77 78 bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start"); 79 images.state = BOOTM_STATE_START; 80 81 return 0; 82 } 83 84 static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc, 85 char * const argv[]) 86 { 87 const void *os_hdr; 88 bool ep_found = false; 89 int ret; 90 91 /* get kernel image header, start address and length */ 92 os_hdr = boot_get_kernel(cmdtp, flag, argc, argv, 93 &images, &images.os.image_start, &images.os.image_len); 94 if (images.os.image_len == 0) { 95 puts("ERROR: can't get kernel image!\n"); 96 return 1; 97 } 98 99 /* get image parameters */ 100 switch (genimg_get_format(os_hdr)) { 101 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 102 case IMAGE_FORMAT_LEGACY: 103 images.os.type = image_get_type(os_hdr); 104 images.os.comp = image_get_comp(os_hdr); 105 images.os.os = image_get_os(os_hdr); 106 107 images.os.end = image_get_image_end(os_hdr); 108 images.os.load = image_get_load(os_hdr); 109 images.os.arch = image_get_arch(os_hdr); 110 break; 111 #endif 112 #if IMAGE_ENABLE_FIT 113 case IMAGE_FORMAT_FIT: 114 if (fit_image_get_type(images.fit_hdr_os, 115 images.fit_noffset_os, 116 &images.os.type)) { 117 puts("Can't get image type!\n"); 118 bootstage_error(BOOTSTAGE_ID_FIT_TYPE); 119 return 1; 120 } 121 122 if (fit_image_get_comp(images.fit_hdr_os, 123 images.fit_noffset_os, 124 &images.os.comp)) { 125 puts("Can't get image compression!\n"); 126 bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION); 127 return 1; 128 } 129 130 if (fit_image_get_os(images.fit_hdr_os, images.fit_noffset_os, 131 &images.os.os)) { 132 puts("Can't get image OS!\n"); 133 bootstage_error(BOOTSTAGE_ID_FIT_OS); 134 return 1; 135 } 136 137 if (fit_image_get_arch(images.fit_hdr_os, 138 images.fit_noffset_os, 139 &images.os.arch)) { 140 puts("Can't get image ARCH!\n"); 141 return 1; 142 } 143 144 images.os.end = fit_get_end(images.fit_hdr_os); 145 146 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os, 147 &images.os.load)) { 148 puts("Can't get image load address!\n"); 149 bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR); 150 return 1; 151 } 152 break; 153 #endif 154 #ifdef CONFIG_ANDROID_BOOT_IMAGE 155 case IMAGE_FORMAT_ANDROID: 156 images.os.type = IH_TYPE_KERNEL; 157 images.os.comp = IH_COMP_NONE; 158 images.os.os = IH_OS_LINUX; 159 160 images.os.end = android_image_get_end(os_hdr); 161 images.os.load = android_image_get_kload(os_hdr); 162 images.ep = images.os.load; 163 ep_found = true; 164 break; 165 #endif 166 default: 167 puts("ERROR: unknown image format type!\n"); 168 return 1; 169 } 170 171 /* If we have a valid setup.bin, we will use that for entry (x86) */ 172 if (images.os.arch == IH_ARCH_I386 || 173 images.os.arch == IH_ARCH_X86_64) { 174 ulong len; 175 176 ret = boot_get_setup(&images, IH_ARCH_I386, &images.ep, &len); 177 if (ret < 0 && ret != -ENOENT) { 178 puts("Could not find a valid setup.bin for x86\n"); 179 return 1; 180 } 181 /* Kernel entry point is the setup.bin */ 182 } else if (images.legacy_hdr_valid) { 183 images.ep = image_get_ep(&images.legacy_hdr_os_copy); 184 #if IMAGE_ENABLE_FIT 185 } else if (images.fit_uname_os) { 186 int ret; 187 188 ret = fit_image_get_entry(images.fit_hdr_os, 189 images.fit_noffset_os, &images.ep); 190 if (ret) { 191 puts("Can't get entry point property!\n"); 192 return 1; 193 } 194 #endif 195 } else if (!ep_found) { 196 puts("Could not find kernel entry point!\n"); 197 return 1; 198 } 199 200 if (images.os.type == IH_TYPE_KERNEL_NOLOAD) { 201 if (CONFIG_IS_ENABLED(CMD_BOOTI) && 202 images.os.arch == IH_ARCH_ARM64) { 203 ulong image_addr; 204 ulong image_size; 205 206 ret = booti_setup(images.os.image_start, &image_addr, 207 &image_size, true); 208 if (ret != 0) 209 return 1; 210 211 images.os.type = IH_TYPE_KERNEL; 212 images.os.load = image_addr; 213 images.ep = image_addr; 214 } else { 215 images.os.load = images.os.image_start; 216 images.ep += images.os.image_start; 217 } 218 } 219 220 images.os.start = map_to_sysmem(os_hdr); 221 222 return 0; 223 } 224 225 /** 226 * bootm_find_images - wrapper to find and locate various images 227 * @flag: Ignored Argument 228 * @argc: command argument count 229 * @argv: command argument list 230 * 231 * boot_find_images() will attempt to load an available ramdisk, 232 * flattened device tree, as well as specifically marked 233 * "loadable" images (loadables are FIT only) 234 * 235 * Note: bootm_find_images will skip an image if it is not found 236 * 237 * @return: 238 * 0, if all existing images were loaded correctly 239 * 1, if an image is found but corrupted, or invalid 240 */ 241 int bootm_find_images(int flag, int argc, char * const argv[]) 242 { 243 int ret; 244 245 /* find ramdisk */ 246 ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH, 247 &images.rd_start, &images.rd_end); 248 if (ret) { 249 puts("Ramdisk image is corrupt or invalid\n"); 250 return 1; 251 } 252 253 #if IMAGE_ENABLE_OF_LIBFDT 254 /* find flattened device tree */ 255 ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images, 256 &images.ft_addr, &images.ft_len); 257 if (ret) { 258 puts("Could not find a valid device tree\n"); 259 return 1; 260 } 261 if (CONFIG_IS_ENABLED(CMD_FDT)) 262 set_working_fdt_addr(map_to_sysmem(images.ft_addr)); 263 #endif 264 265 #if IMAGE_ENABLE_FIT 266 #if defined(CONFIG_FPGA) 267 /* find bitstreams */ 268 ret = boot_get_fpga(argc, argv, &images, IH_ARCH_DEFAULT, 269 NULL, NULL); 270 if (ret) { 271 printf("FPGA image is corrupted or invalid\n"); 272 return 1; 273 } 274 #endif 275 276 /* find all of the loadables */ 277 ret = boot_get_loadable(argc, argv, &images, IH_ARCH_DEFAULT, 278 NULL, NULL); 279 if (ret) { 280 printf("Loadable(s) is corrupt or invalid\n"); 281 return 1; 282 } 283 #endif 284 285 return 0; 286 } 287 288 static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc, 289 char * const argv[]) 290 { 291 if (((images.os.type == IH_TYPE_KERNEL) || 292 (images.os.type == IH_TYPE_KERNEL_NOLOAD) || 293 (images.os.type == IH_TYPE_MULTI)) && 294 (images.os.os == IH_OS_LINUX || 295 images.os.os == IH_OS_VXWORKS)) 296 return bootm_find_images(flag, argc, argv); 297 298 return 0; 299 } 300 #endif /* USE_HOSTC */ 301 302 /** 303 * print_decomp_msg() - Print a suitable decompression/loading message 304 * 305 * @type: OS type (IH_OS_...) 306 * @comp_type: Compression type being used (IH_COMP_...) 307 * @is_xip: true if the load address matches the image start 308 */ 309 static void print_decomp_msg(int comp_type, int type, bool is_xip) 310 { 311 const char *name = genimg_get_type_name(type); 312 313 if (comp_type == IH_COMP_NONE) 314 printf(" %s %s ... ", is_xip ? "XIP" : "Loading", name); 315 else 316 printf(" Uncompressing %s ... ", name); 317 } 318 319 /** 320 * handle_decomp_error() - display a decompression error 321 * 322 * This function tries to produce a useful message. In the case where the 323 * uncompressed size is the same as the available space, we can assume that 324 * the image is too large for the buffer. 325 * 326 * @comp_type: Compression type being used (IH_COMP_...) 327 * @uncomp_size: Number of bytes uncompressed 328 * @unc_len: Amount of space available for decompression 329 * @ret: Error code to report 330 * @return BOOTM_ERR_RESET, indicating that the board must be reset 331 */ 332 static int handle_decomp_error(int comp_type, size_t uncomp_size, 333 size_t unc_len, int ret) 334 { 335 const char *name = genimg_get_comp_name(comp_type); 336 337 if (uncomp_size >= unc_len) 338 printf("Image too large: increase CONFIG_SYS_BOOTM_LEN\n"); 339 else 340 printf("%s: uncompress error %d\n", name, ret); 341 342 /* 343 * The decompression routines are now safe, so will not write beyond 344 * their bounds. Probably it is not necessary to reset, but maintain 345 * the current behaviour for now. 346 */ 347 printf("Must RESET board to recover\n"); 348 #ifndef USE_HOSTCC 349 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE); 350 #endif 351 352 return BOOTM_ERR_RESET; 353 } 354 355 int bootm_decomp_image(int comp, ulong load, ulong image_start, int type, 356 void *load_buf, void *image_buf, ulong image_len, 357 uint unc_len, ulong *load_end) 358 { 359 int ret = 0; 360 361 *load_end = load; 362 print_decomp_msg(comp, type, load == image_start); 363 364 /* 365 * Load the image to the right place, decompressing if needed. After 366 * this, image_len will be set to the number of uncompressed bytes 367 * loaded, ret will be non-zero on error. 368 */ 369 switch (comp) { 370 case IH_COMP_NONE: 371 if (load == image_start) 372 break; 373 if (image_len <= unc_len) 374 memmove_wd(load_buf, image_buf, image_len, CHUNKSZ); 375 else 376 ret = 1; 377 break; 378 #ifdef CONFIG_GZIP 379 case IH_COMP_GZIP: { 380 ret = gunzip(load_buf, unc_len, image_buf, &image_len); 381 break; 382 } 383 #endif /* CONFIG_GZIP */ 384 #ifdef CONFIG_BZIP2 385 case IH_COMP_BZIP2: { 386 uint size = unc_len; 387 388 /* 389 * If we've got less than 4 MB of malloc() space, 390 * use slower decompression algorithm which requires 391 * at most 2300 KB of memory. 392 */ 393 ret = BZ2_bzBuffToBuffDecompress(load_buf, &size, 394 image_buf, image_len, 395 CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0); 396 image_len = size; 397 break; 398 } 399 #endif /* CONFIG_BZIP2 */ 400 #ifdef CONFIG_LZMA 401 case IH_COMP_LZMA: { 402 SizeT lzma_len = unc_len; 403 404 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len, 405 image_buf, image_len); 406 image_len = lzma_len; 407 break; 408 } 409 #endif /* CONFIG_LZMA */ 410 #ifdef CONFIG_LZO 411 case IH_COMP_LZO: { 412 size_t size = unc_len; 413 414 ret = lzop_decompress(image_buf, image_len, load_buf, &size); 415 image_len = size; 416 break; 417 } 418 #endif /* CONFIG_LZO */ 419 #ifdef CONFIG_LZ4 420 case IH_COMP_LZ4: { 421 size_t size = unc_len; 422 423 ret = ulz4fn(image_buf, image_len, load_buf, &size); 424 image_len = size; 425 break; 426 } 427 #endif /* CONFIG_LZ4 */ 428 default: 429 printf("Unimplemented compression type %d\n", comp); 430 return BOOTM_ERR_UNIMPLEMENTED; 431 } 432 433 if (ret) 434 return handle_decomp_error(comp, image_len, unc_len, ret); 435 *load_end = load + image_len; 436 437 puts("OK\n"); 438 439 return 0; 440 } 441 442 #ifndef USE_HOSTCC 443 static int bootm_load_os(bootm_headers_t *images, int boot_progress) 444 { 445 image_info_t os = images->os; 446 ulong load = os.load; 447 ulong load_end; 448 ulong blob_start = os.start; 449 ulong blob_end = os.end; 450 ulong image_start = os.image_start; 451 ulong image_len = os.image_len; 452 ulong flush_start = ALIGN_DOWN(load, ARCH_DMA_MINALIGN); 453 ulong flush_len; 454 bool no_overlap; 455 void *load_buf, *image_buf; 456 int err; 457 458 load_buf = map_sysmem(load, 0); 459 image_buf = map_sysmem(os.image_start, image_len); 460 err = bootm_decomp_image(os.comp, load, os.image_start, os.type, 461 load_buf, image_buf, image_len, 462 CONFIG_SYS_BOOTM_LEN, &load_end); 463 if (err) { 464 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE); 465 return err; 466 } 467 468 flush_len = load_end - load; 469 if (flush_start < load) 470 flush_len += load - flush_start; 471 472 flush_cache(flush_start, ALIGN(flush_len, ARCH_DMA_MINALIGN)); 473 474 debug(" kernel loaded at 0x%08lx, end = 0x%08lx\n", load, load_end); 475 bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED); 476 477 no_overlap = (os.comp == IH_COMP_NONE && load == image_start); 478 479 if (!no_overlap && load < blob_end && load_end > blob_start) { 480 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n", 481 blob_start, blob_end); 482 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load, 483 load_end); 484 485 /* Check what type of image this is. */ 486 if (images->legacy_hdr_valid) { 487 if (image_get_type(&images->legacy_hdr_os_copy) 488 == IH_TYPE_MULTI) 489 puts("WARNING: legacy format multi component image overwritten\n"); 490 return BOOTM_ERR_OVERLAP; 491 } else { 492 puts("ERROR: new format image overwritten - must RESET the board to recover\n"); 493 bootstage_error(BOOTSTAGE_ID_OVERWRITTEN); 494 return BOOTM_ERR_RESET; 495 } 496 } 497 498 lmb_reserve(&images->lmb, images->os.load, (load_end - 499 images->os.load)); 500 return 0; 501 } 502 503 /** 504 * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot 505 * 506 * @return interrupt flag (0 if interrupts were disabled, non-zero if they were 507 * enabled) 508 */ 509 ulong bootm_disable_interrupts(void) 510 { 511 ulong iflag; 512 513 /* 514 * We have reached the point of no return: we are going to 515 * overwrite all exception vector code, so we cannot easily 516 * recover from any failures any more... 517 */ 518 iflag = disable_interrupts(); 519 #ifdef CONFIG_NETCONSOLE 520 /* Stop the ethernet stack if NetConsole could have left it up */ 521 eth_halt(); 522 # ifndef CONFIG_DM_ETH 523 eth_unregister(eth_get_dev()); 524 # endif 525 #endif 526 527 #if defined(CONFIG_CMD_USB) 528 /* 529 * turn off USB to prevent the host controller from writing to the 530 * SDRAM while Linux is booting. This could happen (at least for OHCI 531 * controller), because the HCCA (Host Controller Communication Area) 532 * lies within the SDRAM and the host controller writes continously to 533 * this area (as busmaster!). The HccaFrameNumber is for example 534 * updated every 1 ms within the HCCA structure in SDRAM! For more 535 * details see the OpenHCI specification. 536 */ 537 usb_stop(); 538 #endif 539 return iflag; 540 } 541 542 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY) 543 544 #define CONSOLE_ARG "console=" 545 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1) 546 547 static void fixup_silent_linux(void) 548 { 549 char *buf; 550 const char *env_val; 551 char *cmdline = env_get("bootargs"); 552 int want_silent; 553 554 /* 555 * Only fix cmdline when requested. The environment variable can be: 556 * 557 * no - we never fixup 558 * yes - we always fixup 559 * unset - we rely on the console silent flag 560 */ 561 want_silent = env_get_yesno("silent_linux"); 562 if (want_silent == 0) 563 return; 564 else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT)) 565 return; 566 567 debug("before silent fix-up: %s\n", cmdline); 568 if (cmdline && (cmdline[0] != '\0')) { 569 char *start = strstr(cmdline, CONSOLE_ARG); 570 571 /* Allocate space for maximum possible new command line */ 572 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1); 573 if (!buf) { 574 debug("%s: out of memory\n", __func__); 575 return; 576 } 577 578 if (start) { 579 char *end = strchr(start, ' '); 580 int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN; 581 582 strncpy(buf, cmdline, num_start_bytes); 583 if (end) 584 strcpy(buf + num_start_bytes, end); 585 else 586 buf[num_start_bytes] = '\0'; 587 } else { 588 sprintf(buf, "%s %s", cmdline, CONSOLE_ARG); 589 } 590 env_val = buf; 591 } else { 592 buf = NULL; 593 env_val = CONSOLE_ARG; 594 } 595 596 env_set("bootargs", env_val); 597 debug("after silent fix-up: %s\n", env_val); 598 free(buf); 599 } 600 #endif /* CONFIG_SILENT_CONSOLE */ 601 602 /** 603 * Execute selected states of the bootm command. 604 * 605 * Note the arguments to this state must be the first argument, Any 'bootm' 606 * or sub-command arguments must have already been taken. 607 * 608 * Note that if states contains more than one flag it MUST contain 609 * BOOTM_STATE_START, since this handles and consumes the command line args. 610 * 611 * Also note that aside from boot_os_fn functions and bootm_load_os no other 612 * functions we store the return value of in 'ret' may use a negative return 613 * value, without special handling. 614 * 615 * @param cmdtp Pointer to bootm command table entry 616 * @param flag Command flags (CMD_FLAG_...) 617 * @param argc Number of subcommand arguments (0 = no arguments) 618 * @param argv Arguments 619 * @param states Mask containing states to run (BOOTM_STATE_...) 620 * @param images Image header information 621 * @param boot_progress 1 to show boot progress, 0 to not do this 622 * @return 0 if ok, something else on error. Some errors will cause this 623 * function to perform a reboot! If states contains BOOTM_STATE_OS_GO 624 * then the intent is to boot an OS, so this function will not return 625 * unless the image type is standalone. 626 */ 627 int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], 628 int states, bootm_headers_t *images, int boot_progress) 629 { 630 boot_os_fn *boot_fn; 631 ulong iflag = 0; 632 int ret = 0, need_boot_fn; 633 634 images->state |= states; 635 636 /* 637 * Work through the states and see how far we get. We stop on 638 * any error. 639 */ 640 if (states & BOOTM_STATE_START) 641 ret = bootm_start(cmdtp, flag, argc, argv); 642 643 if (!ret && (states & BOOTM_STATE_FINDOS)) 644 ret = bootm_find_os(cmdtp, flag, argc, argv); 645 646 if (!ret && (states & BOOTM_STATE_FINDOTHER)) 647 ret = bootm_find_other(cmdtp, flag, argc, argv); 648 649 /* Load the OS */ 650 if (!ret && (states & BOOTM_STATE_LOADOS)) { 651 iflag = bootm_disable_interrupts(); 652 ret = bootm_load_os(images, 0); 653 if (ret && ret != BOOTM_ERR_OVERLAP) 654 goto err; 655 else if (ret == BOOTM_ERR_OVERLAP) 656 ret = 0; 657 } 658 659 /* Relocate the ramdisk */ 660 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH 661 if (!ret && (states & BOOTM_STATE_RAMDISK)) { 662 ulong rd_len = images->rd_end - images->rd_start; 663 664 ret = boot_ramdisk_high(&images->lmb, images->rd_start, 665 rd_len, &images->initrd_start, &images->initrd_end); 666 if (!ret) { 667 env_set_hex("initrd_start", images->initrd_start); 668 env_set_hex("initrd_end", images->initrd_end); 669 } 670 } 671 #endif 672 #if IMAGE_ENABLE_OF_LIBFDT && defined(CONFIG_LMB) 673 if (!ret && (states & BOOTM_STATE_FDT)) { 674 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr); 675 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr, 676 &images->ft_len); 677 } 678 #endif 679 680 /* From now on, we need the OS boot function */ 681 if (ret) 682 return ret; 683 boot_fn = bootm_os_get_boot_func(images->os.os); 684 need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE | 685 BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP | 686 BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO); 687 if (boot_fn == NULL && need_boot_fn) { 688 if (iflag) 689 enable_interrupts(); 690 printf("ERROR: booting os '%s' (%d) is not supported\n", 691 genimg_get_os_name(images->os.os), images->os.os); 692 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS); 693 return 1; 694 } 695 696 697 /* Call various other states that are not generally used */ 698 if (!ret && (states & BOOTM_STATE_OS_CMDLINE)) 699 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images); 700 if (!ret && (states & BOOTM_STATE_OS_BD_T)) 701 ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images); 702 if (!ret && (states & BOOTM_STATE_OS_PREP)) { 703 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY) 704 if (images->os.os == IH_OS_LINUX) 705 fixup_silent_linux(); 706 #endif 707 ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images); 708 } 709 710 #ifdef CONFIG_TRACE 711 /* Pretend to run the OS, then run a user command */ 712 if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) { 713 char *cmd_list = env_get("fakegocmd"); 714 715 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO, 716 images, boot_fn); 717 if (!ret && cmd_list) 718 ret = run_command_list(cmd_list, -1, flag); 719 } 720 #endif 721 722 /* Check for unsupported subcommand. */ 723 if (ret) { 724 puts("subcommand not supported\n"); 725 return ret; 726 } 727 728 /* Now run the OS! We hope this doesn't return */ 729 if (!ret && (states & BOOTM_STATE_OS_GO)) 730 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO, 731 images, boot_fn); 732 733 /* Deal with any fallout */ 734 err: 735 if (iflag) 736 enable_interrupts(); 737 738 if (ret == BOOTM_ERR_UNIMPLEMENTED) 739 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL); 740 else if (ret == BOOTM_ERR_RESET) 741 do_reset(cmdtp, flag, argc, argv); 742 743 return ret; 744 } 745 746 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 747 /** 748 * image_get_kernel - verify legacy format kernel image 749 * @img_addr: in RAM address of the legacy format image to be verified 750 * @verify: data CRC verification flag 751 * 752 * image_get_kernel() verifies legacy image integrity and returns pointer to 753 * legacy image header if image verification was completed successfully. 754 * 755 * returns: 756 * pointer to a legacy image header if valid image was found 757 * otherwise return NULL 758 */ 759 static image_header_t *image_get_kernel(ulong img_addr, int verify) 760 { 761 image_header_t *hdr = (image_header_t *)img_addr; 762 763 if (!image_check_magic(hdr)) { 764 puts("Bad Magic Number\n"); 765 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC); 766 return NULL; 767 } 768 bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER); 769 770 if (!image_check_hcrc(hdr)) { 771 puts("Bad Header Checksum\n"); 772 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER); 773 return NULL; 774 } 775 776 bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM); 777 image_print_contents(hdr); 778 779 if (verify) { 780 puts(" Verifying Checksum ... "); 781 if (!image_check_dcrc(hdr)) { 782 printf("Bad Data CRC\n"); 783 bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM); 784 return NULL; 785 } 786 puts("OK\n"); 787 } 788 bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH); 789 790 if (!image_check_target_arch(hdr)) { 791 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr)); 792 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH); 793 return NULL; 794 } 795 return hdr; 796 } 797 #endif 798 799 /** 800 * boot_get_kernel - find kernel image 801 * @os_data: pointer to a ulong variable, will hold os data start address 802 * @os_len: pointer to a ulong variable, will hold os data length 803 * 804 * boot_get_kernel() tries to find a kernel image, verifies its integrity 805 * and locates kernel data. 806 * 807 * returns: 808 * pointer to image header if valid image was found, plus kernel start 809 * address and length, otherwise NULL 810 */ 811 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc, 812 char * const argv[], bootm_headers_t *images, 813 ulong *os_data, ulong *os_len) 814 { 815 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 816 image_header_t *hdr; 817 #endif 818 ulong img_addr; 819 const void *buf; 820 const char *fit_uname_config = NULL; 821 const char *fit_uname_kernel = NULL; 822 #if IMAGE_ENABLE_FIT 823 int os_noffset; 824 #endif 825 826 img_addr = genimg_get_kernel_addr_fit(argc < 1 ? NULL : argv[0], 827 &fit_uname_config, 828 &fit_uname_kernel); 829 830 bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC); 831 832 /* check image type, for FIT images get FIT kernel node */ 833 *os_data = *os_len = 0; 834 buf = map_sysmem(img_addr, 0); 835 switch (genimg_get_format(buf)) { 836 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 837 case IMAGE_FORMAT_LEGACY: 838 printf("## Booting kernel from Legacy Image at %08lx ...\n", 839 img_addr); 840 hdr = image_get_kernel(img_addr, images->verify); 841 if (!hdr) 842 return NULL; 843 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE); 844 845 /* get os_data and os_len */ 846 switch (image_get_type(hdr)) { 847 case IH_TYPE_KERNEL: 848 case IH_TYPE_KERNEL_NOLOAD: 849 *os_data = image_get_data(hdr); 850 *os_len = image_get_data_size(hdr); 851 break; 852 case IH_TYPE_MULTI: 853 image_multi_getimg(hdr, 0, os_data, os_len); 854 break; 855 case IH_TYPE_STANDALONE: 856 *os_data = image_get_data(hdr); 857 *os_len = image_get_data_size(hdr); 858 break; 859 default: 860 printf("Wrong Image Type for %s command\n", 861 cmdtp->name); 862 bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE); 863 return NULL; 864 } 865 866 /* 867 * copy image header to allow for image overwrites during 868 * kernel decompression. 869 */ 870 memmove(&images->legacy_hdr_os_copy, hdr, 871 sizeof(image_header_t)); 872 873 /* save pointer to image header */ 874 images->legacy_hdr_os = hdr; 875 876 images->legacy_hdr_valid = 1; 877 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE); 878 break; 879 #endif 880 #if IMAGE_ENABLE_FIT 881 case IMAGE_FORMAT_FIT: 882 os_noffset = fit_image_load(images, img_addr, 883 &fit_uname_kernel, &fit_uname_config, 884 IH_ARCH_DEFAULT, IH_TYPE_KERNEL, 885 BOOTSTAGE_ID_FIT_KERNEL_START, 886 FIT_LOAD_IGNORED, os_data, os_len); 887 if (os_noffset < 0) 888 return NULL; 889 890 images->fit_hdr_os = map_sysmem(img_addr, 0); 891 images->fit_uname_os = fit_uname_kernel; 892 images->fit_uname_cfg = fit_uname_config; 893 images->fit_noffset_os = os_noffset; 894 break; 895 #endif 896 #ifdef CONFIG_ANDROID_BOOT_IMAGE 897 case IMAGE_FORMAT_ANDROID: 898 printf("## Booting Android Image at 0x%08lx ...\n", img_addr); 899 if (android_image_get_kernel(buf, images->verify, 900 os_data, os_len)) 901 return NULL; 902 break; 903 #endif 904 default: 905 printf("Wrong Image Format for %s command\n", cmdtp->name); 906 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO); 907 return NULL; 908 } 909 910 debug(" kernel data at 0x%08lx, len = 0x%08lx (%ld)\n", 911 *os_data, *os_len, *os_len); 912 913 return buf; 914 } 915 #else /* USE_HOSTCC */ 916 917 void memmove_wd(void *to, void *from, size_t len, ulong chunksz) 918 { 919 memmove(to, from, len); 920 } 921 922 static int bootm_host_load_image(const void *fit, int req_image_type) 923 { 924 const char *fit_uname_config = NULL; 925 ulong data, len; 926 bootm_headers_t images; 927 int noffset; 928 ulong load_end; 929 uint8_t image_type; 930 uint8_t imape_comp; 931 void *load_buf; 932 int ret; 933 934 memset(&images, '\0', sizeof(images)); 935 images.verify = 1; 936 noffset = fit_image_load(&images, (ulong)fit, 937 NULL, &fit_uname_config, 938 IH_ARCH_DEFAULT, req_image_type, -1, 939 FIT_LOAD_IGNORED, &data, &len); 940 if (noffset < 0) 941 return noffset; 942 if (fit_image_get_type(fit, noffset, &image_type)) { 943 puts("Can't get image type!\n"); 944 return -EINVAL; 945 } 946 947 if (fit_image_get_comp(fit, noffset, &imape_comp)) { 948 puts("Can't get image compression!\n"); 949 return -EINVAL; 950 } 951 952 /* Allow the image to expand by a factor of 4, should be safe */ 953 load_buf = malloc((1 << 20) + len * 4); 954 ret = bootm_decomp_image(imape_comp, 0, data, image_type, load_buf, 955 (void *)data, len, CONFIG_SYS_BOOTM_LEN, 956 &load_end); 957 free(load_buf); 958 959 if (ret && ret != BOOTM_ERR_UNIMPLEMENTED) 960 return ret; 961 962 return 0; 963 } 964 965 int bootm_host_load_images(const void *fit, int cfg_noffset) 966 { 967 static uint8_t image_types[] = { 968 IH_TYPE_KERNEL, 969 IH_TYPE_FLATDT, 970 IH_TYPE_RAMDISK, 971 }; 972 int err = 0; 973 int i; 974 975 for (i = 0; i < ARRAY_SIZE(image_types); i++) { 976 int ret; 977 978 ret = bootm_host_load_image(fit, image_types[i]); 979 if (!err && ret && ret != -ENOENT) 980 err = ret; 981 } 982 983 /* Return the first error we found */ 984 return err; 985 } 986 987 #endif /* ndef USE_HOSTCC */ 988