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