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