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