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 = android_image_get_comp(os_hdr); 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_parse_comp(const unsigned char *hdr) 348 { 349 #if defined(CONFIG_ARM) && !defined(CONFIG_ARM64) 350 ulong start, end; 351 352 if (!bootz_setup((ulong)hdr, &start, &end)) 353 return IH_COMP_ZIMAGE; 354 #endif 355 #if defined(CONFIG_LZ4) 356 if (lz4_is_valid_header(hdr)) 357 return IH_COMP_LZ4; 358 #endif 359 #if defined(CONFIG_LZO) 360 if (lzop_is_valid_header(hdr)) 361 return IH_COMP_LZO; 362 #endif 363 #if defined(CONFIG_GZIP) 364 if (gzip_parse_header(hdr, 0xffff) > 0) 365 return IH_COMP_GZIP; 366 #endif 367 #if defined(CONFIG_BZIP2) 368 if ((hdr[0] == 'B') && (hdr[1] == 'Z') && (hdr[2] == 'h')) 369 return IH_COMP_BZIP2; 370 #endif 371 return IH_COMP_NONE; 372 } 373 374 int bootm_decomp_image(int comp, ulong load, ulong image_start, int type, 375 void *load_buf, void *image_buf, ulong image_len, 376 uint unc_len, ulong *load_end) 377 { 378 int ret = 0; 379 380 *load_end = load; 381 print_decomp_msg(comp, type, load == image_start); 382 383 /* 384 * Load the image to the right place, decompressing if needed. After 385 * this, image_len will be set to the number of uncompressed bytes 386 * loaded, ret will be non-zero on error. 387 */ 388 switch (comp) { 389 case IH_COMP_NONE: 390 if (load == image_start) 391 break; 392 if (image_len <= unc_len) 393 memmove_wd(load_buf, image_buf, image_len, CHUNKSZ); 394 else 395 ret = 1; 396 break; 397 #ifdef CONFIG_GZIP 398 case IH_COMP_GZIP: { 399 ret = gunzip(load_buf, unc_len, image_buf, &image_len); 400 break; 401 } 402 #endif /* CONFIG_GZIP */ 403 #ifdef CONFIG_BZIP2 404 case IH_COMP_BZIP2: { 405 uint size = unc_len; 406 407 /* 408 * If we've got less than 4 MB of malloc() space, 409 * use slower decompression algorithm which requires 410 * at most 2300 KB of memory. 411 */ 412 ret = BZ2_bzBuffToBuffDecompress(load_buf, &size, 413 image_buf, image_len, 414 CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0); 415 image_len = size; 416 break; 417 } 418 #endif /* CONFIG_BZIP2 */ 419 #ifdef CONFIG_LZMA 420 case IH_COMP_LZMA: { 421 SizeT lzma_len = unc_len; 422 423 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len, 424 image_buf, image_len); 425 image_len = lzma_len; 426 break; 427 } 428 #endif /* CONFIG_LZMA */ 429 #ifdef CONFIG_LZO 430 case IH_COMP_LZO: { 431 size_t size = unc_len; 432 433 ret = lzop_decompress(image_buf, image_len, load_buf, &size); 434 image_len = size; 435 break; 436 } 437 #endif /* CONFIG_LZO */ 438 #ifdef CONFIG_LZ4 439 case IH_COMP_LZ4: { 440 size_t size = unc_len; 441 442 ret = ulz4fn(image_buf, image_len, load_buf, &size); 443 image_len = size; 444 break; 445 } 446 #endif /* CONFIG_LZ4 */ 447 default: 448 printf("Unimplemented compression type %d\n", comp); 449 return BOOTM_ERR_UNIMPLEMENTED; 450 } 451 452 if (ret) 453 return handle_decomp_error(comp, image_len, unc_len, ret); 454 *load_end = load + image_len; 455 456 puts("OK\n"); 457 458 return 0; 459 } 460 461 #ifndef USE_HOSTCC 462 static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end, 463 int boot_progress) 464 { 465 image_info_t os = images->os; 466 ulong load = os.load; 467 ulong blob_start = os.start; 468 ulong blob_end = os.end; 469 ulong image_start = os.image_start; 470 ulong image_len = os.image_len; 471 bool no_overlap; 472 void *load_buf, *image_buf; 473 int err; 474 475 load_buf = map_sysmem(load, 0); 476 image_buf = map_sysmem(os.image_start, image_len); 477 err = bootm_decomp_image(os.comp, load, os.image_start, os.type, 478 load_buf, image_buf, image_len, 479 CONFIG_SYS_BOOTM_LEN, load_end); 480 if (err) { 481 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE); 482 return err; 483 } 484 flush_cache(load, ALIGN(*load_end - load, ARCH_DMA_MINALIGN)); 485 486 debug(" kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end); 487 bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED); 488 489 no_overlap = (os.comp == IH_COMP_NONE && load == image_start); 490 491 if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) { 492 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n", 493 blob_start, blob_end); 494 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load, 495 *load_end); 496 497 /* Check what type of image this is. */ 498 if (images->legacy_hdr_valid) { 499 if (image_get_type(&images->legacy_hdr_os_copy) 500 == IH_TYPE_MULTI) 501 puts("WARNING: legacy format multi component image overwritten\n"); 502 return BOOTM_ERR_OVERLAP; 503 } else { 504 puts("ERROR: new format image overwritten - must RESET the board to recover\n"); 505 bootstage_error(BOOTSTAGE_ID_OVERWRITTEN); 506 return BOOTM_ERR_RESET; 507 } 508 } 509 510 return 0; 511 } 512 513 /** 514 * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot 515 * 516 * @return interrupt flag (0 if interrupts were disabled, non-zero if they were 517 * enabled) 518 */ 519 ulong bootm_disable_interrupts(void) 520 { 521 ulong iflag; 522 523 /* 524 * We have reached the point of no return: we are going to 525 * overwrite all exception vector code, so we cannot easily 526 * recover from any failures any more... 527 */ 528 iflag = disable_interrupts(); 529 #ifdef CONFIG_NETCONSOLE 530 /* Stop the ethernet stack if NetConsole could have left it up */ 531 eth_halt(); 532 # ifndef CONFIG_DM_ETH 533 eth_unregister(eth_get_dev()); 534 # endif 535 #endif 536 537 #if defined(CONFIG_CMD_USB) 538 /* 539 * turn off USB to prevent the host controller from writing to the 540 * SDRAM while Linux is booting. This could happen (at least for OHCI 541 * controller), because the HCCA (Host Controller Communication Area) 542 * lies within the SDRAM and the host controller writes continously to 543 * this area (as busmaster!). The HccaFrameNumber is for example 544 * updated every 1 ms within the HCCA structure in SDRAM! For more 545 * details see the OpenHCI specification. 546 */ 547 usb_stop(); 548 #endif 549 return iflag; 550 } 551 552 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY) 553 554 #define CONSOLE_ARG "console=" 555 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1) 556 557 static void fixup_silent_linux(void) 558 { 559 char *buf; 560 const char *env_val; 561 char *cmdline = env_get("bootargs"); 562 int want_silent; 563 564 /* 565 * Only fix cmdline when requested. The environment variable can be: 566 * 567 * no - we never fixup 568 * yes - we always fixup 569 * unset - we rely on the console silent flag 570 */ 571 want_silent = env_get_yesno("silent_linux"); 572 if (want_silent == 0) 573 return; 574 else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT)) 575 return; 576 577 debug("before silent fix-up: %s\n", cmdline); 578 if (cmdline && (cmdline[0] != '\0')) { 579 char *start = strstr(cmdline, CONSOLE_ARG); 580 581 /* Allocate space for maximum possible new command line */ 582 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1); 583 if (!buf) { 584 debug("%s: out of memory\n", __func__); 585 return; 586 } 587 588 if (start) { 589 char *end = strchr(start, ' '); 590 int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN; 591 592 strncpy(buf, cmdline, num_start_bytes); 593 if (end) 594 strcpy(buf + num_start_bytes, end); 595 else 596 buf[num_start_bytes] = '\0'; 597 } else { 598 sprintf(buf, "%s %s", cmdline, CONSOLE_ARG); 599 } 600 env_val = buf; 601 } else { 602 buf = NULL; 603 env_val = CONSOLE_ARG; 604 } 605 606 env_set("bootargs", env_val); 607 debug("after silent fix-up: %s\n", env_val); 608 free(buf); 609 } 610 #endif /* CONFIG_SILENT_CONSOLE */ 611 612 /** 613 * Execute selected states of the bootm command. 614 * 615 * Note the arguments to this state must be the first argument, Any 'bootm' 616 * or sub-command arguments must have already been taken. 617 * 618 * Note that if states contains more than one flag it MUST contain 619 * BOOTM_STATE_START, since this handles and consumes the command line args. 620 * 621 * Also note that aside from boot_os_fn functions and bootm_load_os no other 622 * functions we store the return value of in 'ret' may use a negative return 623 * value, without special handling. 624 * 625 * @param cmdtp Pointer to bootm command table entry 626 * @param flag Command flags (CMD_FLAG_...) 627 * @param argc Number of subcommand arguments (0 = no arguments) 628 * @param argv Arguments 629 * @param states Mask containing states to run (BOOTM_STATE_...) 630 * @param images Image header information 631 * @param boot_progress 1 to show boot progress, 0 to not do this 632 * @return 0 if ok, something else on error. Some errors will cause this 633 * function to perform a reboot! If states contains BOOTM_STATE_OS_GO 634 * then the intent is to boot an OS, so this function will not return 635 * unless the image type is standalone. 636 */ 637 int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], 638 int states, bootm_headers_t *images, int boot_progress) 639 { 640 boot_os_fn *boot_fn; 641 ulong iflag = 0; 642 int ret = 0, need_boot_fn; 643 644 images->state |= states; 645 646 /* 647 * Work through the states and see how far we get. We stop on 648 * any error. 649 */ 650 if (states & BOOTM_STATE_START) 651 ret = bootm_start(cmdtp, flag, argc, argv); 652 653 if (!ret && (states & BOOTM_STATE_FINDOS)) 654 ret = bootm_find_os(cmdtp, flag, argc, argv); 655 656 if (!ret && (states & BOOTM_STATE_FINDOTHER)) 657 ret = bootm_find_other(cmdtp, flag, argc, argv); 658 659 /* Load the OS */ 660 if (!ret && (states & BOOTM_STATE_LOADOS)) { 661 ulong load_end; 662 663 iflag = bootm_disable_interrupts(); 664 ret = bootm_load_os(images, &load_end, 0); 665 if (ret == 0) 666 lmb_reserve(&images->lmb, images->os.load, 667 (load_end - images->os.load)); 668 else if (ret && ret != BOOTM_ERR_OVERLAP) 669 goto err; 670 else if (ret == BOOTM_ERR_OVERLAP) 671 ret = 0; 672 } 673 674 /* Resever memory before any lmb_alloc, as early as possible */ 675 #if IMAGE_ENABLE_OF_LIBFDT && defined(CONFIG_LMB) 676 if (!ret && ((states & BOOTM_STATE_RAMDISK) || 677 (states & BOOTM_STATE_FDT))) 678 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr); 679 #endif 680 /* Relocate the ramdisk */ 681 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH 682 if (!ret && (states & BOOTM_STATE_RAMDISK)) { 683 ulong rd_len = images->rd_end - images->rd_start; 684 685 ret = boot_ramdisk_high(&images->lmb, images->rd_start, 686 rd_len, &images->initrd_start, &images->initrd_end); 687 if (!ret) { 688 env_set_hex("initrd_start", images->initrd_start); 689 env_set_hex("initrd_end", images->initrd_end); 690 } 691 } 692 #endif 693 #if IMAGE_ENABLE_OF_LIBFDT && defined(CONFIG_LMB) 694 if (!ret && (states & BOOTM_STATE_FDT)) { 695 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr, 696 &images->ft_len); 697 } 698 #endif 699 700 /* From now on, we need the OS boot function */ 701 if (ret) 702 return ret; 703 boot_fn = bootm_os_get_boot_func(images->os.os); 704 need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE | 705 BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP | 706 BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO); 707 if (boot_fn == NULL && need_boot_fn) { 708 if (iflag) 709 enable_interrupts(); 710 printf("ERROR: booting os '%s' (%d) is not supported\n", 711 genimg_get_os_name(images->os.os), images->os.os); 712 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS); 713 return 1; 714 } 715 716 717 /* Call various other states that are not generally used */ 718 if (!ret && (states & BOOTM_STATE_OS_CMDLINE)) 719 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images); 720 if (!ret && (states & BOOTM_STATE_OS_BD_T)) 721 ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images); 722 if (!ret && (states & BOOTM_STATE_OS_PREP)) { 723 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY) 724 if (images->os.os == IH_OS_LINUX) 725 fixup_silent_linux(); 726 #endif 727 ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images); 728 } 729 730 #ifdef CONFIG_TRACE 731 /* Pretend to run the OS, then run a user command */ 732 if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) { 733 char *cmd_list = env_get("fakegocmd"); 734 735 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO, 736 images, boot_fn); 737 if (!ret && cmd_list) 738 ret = run_command_list(cmd_list, -1, flag); 739 } 740 #endif 741 742 /* Check for unsupported subcommand. */ 743 if (ret) { 744 puts("subcommand not supported\n"); 745 return ret; 746 } 747 748 /* Now run the OS! We hope this doesn't return */ 749 if (!ret && (states & BOOTM_STATE_OS_GO)) 750 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO, 751 images, boot_fn); 752 753 /* Deal with any fallout */ 754 err: 755 if (iflag) 756 enable_interrupts(); 757 758 if (ret == BOOTM_ERR_UNIMPLEMENTED) 759 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL); 760 else if (ret == BOOTM_ERR_RESET) 761 do_reset(cmdtp, flag, argc, argv); 762 763 return ret; 764 } 765 766 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 767 /** 768 * image_get_kernel - verify legacy format kernel image 769 * @img_addr: in RAM address of the legacy format image to be verified 770 * @verify: data CRC verification flag 771 * 772 * image_get_kernel() verifies legacy image integrity and returns pointer to 773 * legacy image header if image verification was completed successfully. 774 * 775 * returns: 776 * pointer to a legacy image header if valid image was found 777 * otherwise return NULL 778 */ 779 static image_header_t *image_get_kernel(ulong img_addr, int verify) 780 { 781 image_header_t *hdr = (image_header_t *)img_addr; 782 783 if (!image_check_magic(hdr)) { 784 puts("Bad Magic Number\n"); 785 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC); 786 return NULL; 787 } 788 bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER); 789 790 if (!image_check_hcrc(hdr)) { 791 puts("Bad Header Checksum\n"); 792 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER); 793 return NULL; 794 } 795 796 bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM); 797 image_print_contents(hdr); 798 799 if (verify) { 800 puts(" Verifying Checksum ... "); 801 if (!image_check_dcrc(hdr)) { 802 printf("Bad Data CRC\n"); 803 bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM); 804 return NULL; 805 } 806 puts("OK\n"); 807 } 808 bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH); 809 810 if (!image_check_target_arch(hdr)) { 811 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr)); 812 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH); 813 return NULL; 814 } 815 return hdr; 816 } 817 #endif 818 819 /** 820 * boot_get_kernel - find kernel image 821 * @os_data: pointer to a ulong variable, will hold os data start address 822 * @os_len: pointer to a ulong variable, will hold os data length 823 * 824 * boot_get_kernel() tries to find a kernel image, verifies its integrity 825 * and locates kernel data. 826 * 827 * returns: 828 * pointer to image header if valid image was found, plus kernel start 829 * address and length, otherwise NULL 830 */ 831 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc, 832 char * const argv[], bootm_headers_t *images, 833 ulong *os_data, ulong *os_len) 834 { 835 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 836 image_header_t *hdr; 837 #endif 838 ulong img_addr; 839 const void *buf; 840 const char *fit_uname_config = NULL; 841 const char *fit_uname_kernel = NULL; 842 #if IMAGE_ENABLE_FIT 843 int os_noffset; 844 #endif 845 846 img_addr = genimg_get_kernel_addr_fit(argc < 1 ? NULL : argv[0], 847 &fit_uname_config, 848 &fit_uname_kernel); 849 850 bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC); 851 852 /* check image type, for FIT images get FIT kernel node */ 853 *os_data = *os_len = 0; 854 buf = map_sysmem(img_addr, 0); 855 switch (genimg_get_format(buf)) { 856 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 857 case IMAGE_FORMAT_LEGACY: 858 printf("## Booting kernel from Legacy Image at %08lx ...\n", 859 img_addr); 860 hdr = image_get_kernel(img_addr, images->verify); 861 if (!hdr) 862 return NULL; 863 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE); 864 865 /* get os_data and os_len */ 866 switch (image_get_type(hdr)) { 867 case IH_TYPE_KERNEL: 868 case IH_TYPE_KERNEL_NOLOAD: 869 *os_data = image_get_data(hdr); 870 *os_len = image_get_data_size(hdr); 871 break; 872 case IH_TYPE_MULTI: 873 image_multi_getimg(hdr, 0, os_data, os_len); 874 break; 875 case IH_TYPE_STANDALONE: 876 *os_data = image_get_data(hdr); 877 *os_len = image_get_data_size(hdr); 878 break; 879 default: 880 printf("Wrong Image Type for %s command\n", 881 cmdtp->name); 882 bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE); 883 return NULL; 884 } 885 886 /* 887 * copy image header to allow for image overwrites during 888 * kernel decompression. 889 */ 890 memmove(&images->legacy_hdr_os_copy, hdr, 891 sizeof(image_header_t)); 892 893 /* save pointer to image header */ 894 images->legacy_hdr_os = hdr; 895 896 images->legacy_hdr_valid = 1; 897 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE); 898 break; 899 #endif 900 #if IMAGE_ENABLE_FIT 901 case IMAGE_FORMAT_FIT: 902 os_noffset = fit_image_load(images, img_addr, 903 &fit_uname_kernel, &fit_uname_config, 904 IH_ARCH_DEFAULT, IH_TYPE_KERNEL, 905 BOOTSTAGE_ID_FIT_KERNEL_START, 906 FIT_LOAD_IGNORED, os_data, os_len); 907 if (os_noffset < 0) 908 return NULL; 909 910 images->fit_hdr_os = map_sysmem(img_addr, 0); 911 images->fit_uname_os = fit_uname_kernel; 912 images->fit_uname_cfg = fit_uname_config; 913 images->fit_noffset_os = os_noffset; 914 break; 915 #endif 916 #ifdef CONFIG_ANDROID_BOOT_IMAGE 917 case IMAGE_FORMAT_ANDROID: 918 printf("## Booting Android Image at 0x%08lx ...\n", img_addr); 919 if (android_image_get_kernel(buf, images->verify, 920 os_data, os_len)) 921 return NULL; 922 break; 923 #endif 924 default: 925 printf("Wrong Image Format for %s command\n", cmdtp->name); 926 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO); 927 return NULL; 928 } 929 930 debug(" kernel data at 0x%08lx, len = 0x%08lx (%ld)\n", 931 *os_data, *os_len, *os_len); 932 933 return buf; 934 } 935 #else /* USE_HOSTCC */ 936 937 void memmove_wd(void *to, void *from, size_t len, ulong chunksz) 938 { 939 memmove(to, from, len); 940 } 941 942 static int bootm_host_load_image(const void *fit, int req_image_type) 943 { 944 const char *fit_uname_config = NULL; 945 ulong data, len; 946 bootm_headers_t images; 947 int noffset; 948 ulong load_end; 949 uint8_t image_type; 950 uint8_t imape_comp; 951 void *load_buf; 952 int ret; 953 954 memset(&images, '\0', sizeof(images)); 955 images.verify = 1; 956 noffset = fit_image_load(&images, (ulong)fit, 957 NULL, &fit_uname_config, 958 IH_ARCH_DEFAULT, req_image_type, -1, 959 FIT_LOAD_IGNORED, &data, &len); 960 if (noffset < 0) 961 return noffset; 962 if (fit_image_get_type(fit, noffset, &image_type)) { 963 puts("Can't get image type!\n"); 964 return -EINVAL; 965 } 966 967 if (fit_image_get_comp(fit, noffset, &imape_comp)) { 968 puts("Can't get image compression!\n"); 969 return -EINVAL; 970 } 971 972 /* Allow the image to expand by a factor of 4, should be safe */ 973 load_buf = malloc((1 << 20) + len * 4); 974 ret = bootm_decomp_image(imape_comp, 0, data, image_type, load_buf, 975 (void *)data, len, CONFIG_SYS_BOOTM_LEN, 976 &load_end); 977 free(load_buf); 978 979 if (ret && ret != BOOTM_ERR_UNIMPLEMENTED) 980 return ret; 981 982 return 0; 983 } 984 985 int bootm_host_load_images(const void *fit, int cfg_noffset) 986 { 987 static uint8_t image_types[] = { 988 IH_TYPE_KERNEL, 989 IH_TYPE_FLATDT, 990 IH_TYPE_RAMDISK, 991 }; 992 int err = 0; 993 int i; 994 995 for (i = 0; i < ARRAY_SIZE(image_types); i++) { 996 int ret; 997 998 ret = bootm_host_load_image(fit, image_types[i]); 999 if (!err && ret && ret != -ENOENT) 1000 err = ret; 1001 } 1002 1003 /* Return the first error we found */ 1004 return err; 1005 } 1006 1007 #endif /* ndef USE_HOSTCC */ 1008