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