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 #ifdef USE_HOSTCC 34 #define CONFIG_SYS_BOOTM_LEN 0x4000000 35 #endif 36 37 #ifndef CONFIG_SYS_BOOTM_LEN 38 /* use 8MByte as default max gunzip size */ 39 #define CONFIG_SYS_BOOTM_LEN 0x800000 40 #endif 41 42 #define IH_INITRD_ARCH IH_ARCH_DEFAULT 43 44 #ifndef USE_HOSTCC 45 46 DECLARE_GLOBAL_DATA_PTR; 47 48 bootm_headers_t images; /* pointers to os/initrd/fdt images */ 49 50 __weak int board_do_bootm(int argc, char * const argv[]) 51 { 52 return 0; 53 } 54 55 __weak int bootm_board_start(void) 56 { 57 return 0; 58 } 59 60 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc, 61 char * const argv[], bootm_headers_t *images, 62 ulong *os_data, ulong *os_len); 63 64 #ifdef CONFIG_LMB 65 static void boot_start_lmb(bootm_headers_t *images) 66 { 67 68 lmb_init(&images->lmb); 69 #ifdef CONFIG_NR_DRAM_BANKS 70 int i; 71 72 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { 73 lmb_add(&images->lmb, gd->bd->bi_dram[i].start, 74 gd->bd->bi_dram[i].size); 75 } 76 #else 77 ulong mem_start; 78 phys_size_t mem_size; 79 80 mem_start = env_get_bootm_low(); 81 mem_size = env_get_bootm_size(); 82 lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size); 83 #endif 84 arch_lmb_reserve(&images->lmb); 85 board_lmb_reserve(&images->lmb); 86 } 87 #else 88 #define lmb_reserve(lmb, base, size) 89 static inline void boot_start_lmb(bootm_headers_t *images) { } 90 #endif 91 92 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc, 93 char * const argv[]) 94 { 95 memset((void *)&images, 0, sizeof(images)); 96 images.verify = env_get_yesno("verify"); 97 98 boot_start_lmb(&images); 99 100 bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start"); 101 images.state = BOOTM_STATE_START; 102 103 return bootm_board_start(); 104 } 105 106 static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc, 107 char * const argv[]) 108 { 109 const void *os_hdr; 110 bool ep_found = false; 111 int ret; 112 113 /* get kernel image header, start address and length */ 114 os_hdr = boot_get_kernel(cmdtp, flag, argc, argv, 115 &images, &images.os.image_start, &images.os.image_len); 116 if (images.os.image_len == 0) { 117 puts("ERROR: can't get kernel image!\n"); 118 return 1; 119 } 120 121 /* get image parameters */ 122 switch (genimg_get_format(os_hdr)) { 123 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 124 case IMAGE_FORMAT_LEGACY: 125 images.os.type = image_get_type(os_hdr); 126 images.os.comp = image_get_comp(os_hdr); 127 images.os.os = image_get_os(os_hdr); 128 129 images.os.end = image_get_image_end(os_hdr); 130 images.os.load = image_get_load(os_hdr); 131 images.os.arch = image_get_arch(os_hdr); 132 break; 133 #endif 134 #if IMAGE_ENABLE_FIT 135 case IMAGE_FORMAT_FIT: 136 if (fit_image_get_type(images.fit_hdr_os, 137 images.fit_noffset_os, 138 &images.os.type)) { 139 puts("Can't get image type!\n"); 140 bootstage_error(BOOTSTAGE_ID_FIT_TYPE); 141 return 1; 142 } 143 144 if (fit_image_get_comp(images.fit_hdr_os, 145 images.fit_noffset_os, 146 &images.os.comp)) { 147 puts("Can't get image compression!\n"); 148 bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION); 149 return 1; 150 } 151 152 if (fit_image_get_os(images.fit_hdr_os, images.fit_noffset_os, 153 &images.os.os)) { 154 puts("Can't get image OS!\n"); 155 bootstage_error(BOOTSTAGE_ID_FIT_OS); 156 return 1; 157 } 158 159 if (fit_image_get_arch(images.fit_hdr_os, 160 images.fit_noffset_os, 161 &images.os.arch)) { 162 puts("Can't get image ARCH!\n"); 163 return 1; 164 } 165 166 images.os.end = fit_get_end(images.fit_hdr_os); 167 168 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os, 169 &images.os.load)) { 170 puts("Can't get image load address!\n"); 171 bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR); 172 return 1; 173 } 174 break; 175 #endif 176 #ifdef CONFIG_ANDROID_BOOT_IMAGE 177 case IMAGE_FORMAT_ANDROID: 178 images.os.type = IH_TYPE_KERNEL; 179 images.os.comp = android_image_get_comp(os_hdr); 180 images.os.os = IH_OS_LINUX; 181 182 images.os.end = android_image_get_end(os_hdr); 183 images.os.load = android_image_get_kload(os_hdr); 184 images.ep = images.os.load; 185 ep_found = true; 186 break; 187 #endif 188 default: 189 puts("ERROR: unknown image format type!\n"); 190 return 1; 191 } 192 193 /* If we have a valid setup.bin, we will use that for entry (x86) */ 194 if (images.os.arch == IH_ARCH_I386 || 195 images.os.arch == IH_ARCH_X86_64) { 196 ulong len; 197 198 ret = boot_get_setup(&images, IH_ARCH_I386, &images.ep, &len); 199 if (ret < 0 && ret != -ENOENT) { 200 puts("Could not find a valid setup.bin for x86\n"); 201 return 1; 202 } 203 /* Kernel entry point is the setup.bin */ 204 } else if (images.legacy_hdr_valid) { 205 images.ep = image_get_ep(&images.legacy_hdr_os_copy); 206 #if IMAGE_ENABLE_FIT 207 } else if (images.fit_uname_os) { 208 int ret; 209 210 ret = fit_image_get_entry(images.fit_hdr_os, 211 images.fit_noffset_os, &images.ep); 212 if (ret) { 213 puts("Can't get entry point property!\n"); 214 return 1; 215 } 216 #endif 217 } else if (!ep_found) { 218 puts("Could not find kernel entry point!\n"); 219 return 1; 220 } 221 222 if (images.os.type == IH_TYPE_KERNEL_NOLOAD) { 223 images.os.load = images.os.image_start; 224 images.ep += images.os.load; 225 } 226 227 images.os.start = map_to_sysmem(os_hdr); 228 229 return 0; 230 } 231 232 /** 233 * bootm_find_images - wrapper to find and locate various images 234 * @flag: Ignored Argument 235 * @argc: command argument count 236 * @argv: command argument list 237 * 238 * boot_find_images() will attempt to load an available ramdisk, 239 * flattened device tree, as well as specifically marked 240 * "loadable" images (loadables are FIT only) 241 * 242 * Note: bootm_find_images will skip an image if it is not found 243 * 244 * @return: 245 * 0, if all existing images were loaded correctly 246 * 1, if an image is found but corrupted, or invalid 247 */ 248 int bootm_find_images(int flag, int argc, char * const argv[]) 249 { 250 int ret; 251 252 /* find ramdisk */ 253 ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH, 254 &images.rd_start, &images.rd_end); 255 if (ret) { 256 puts("Ramdisk image is corrupt or invalid\n"); 257 return 1; 258 } 259 260 #if IMAGE_ENABLE_OF_LIBFDT 261 /* find flattened device tree */ 262 ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images, 263 &images.ft_addr, &images.ft_len); 264 if (ret) { 265 puts("Could not find a valid device tree\n"); 266 return 1; 267 } 268 set_working_fdt_addr((ulong)images.ft_addr); 269 lmb_reserve(&images.lmb, (ulong)images.ft_addr, (ulong)images.ft_len); 270 #endif 271 272 #if IMAGE_ENABLE_FIT 273 #if defined(CONFIG_FPGA) && defined(CONFIG_FPGA_XILINX) 274 /* find bitstreams */ 275 ret = boot_get_fpga(argc, argv, &images, IH_ARCH_DEFAULT, 276 NULL, NULL); 277 if (ret) { 278 printf("FPGA image is corrupted or invalid\n"); 279 return 1; 280 } 281 #endif 282 283 /* find all of the loadables */ 284 ret = boot_get_loadable(argc, argv, &images, IH_ARCH_DEFAULT, 285 NULL, NULL); 286 if (ret) { 287 printf("Loadable(s) is corrupt or invalid\n"); 288 return 1; 289 } 290 #endif 291 292 return 0; 293 } 294 295 static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc, 296 char * const argv[]) 297 { 298 if (((images.os.type == IH_TYPE_KERNEL) || 299 (images.os.type == IH_TYPE_KERNEL_NOLOAD) || 300 (images.os.type == IH_TYPE_MULTI)) && 301 (images.os.os == IH_OS_LINUX || 302 images.os.os == IH_OS_VXWORKS)) 303 return bootm_find_images(flag, argc, argv); 304 305 return 0; 306 } 307 #endif /* USE_HOSTC */ 308 309 /** 310 * print_decomp_msg() - Print a suitable decompression/loading message 311 * 312 * @type: OS type (IH_OS_...) 313 * @comp_type: Compression type being used (IH_COMP_...) 314 * @is_xip: true if the load address matches the image start 315 */ 316 static void print_decomp_msg(int comp_type, int type, bool is_xip, 317 ulong src, ulong dst) 318 { 319 const char *name = genimg_get_type_name(type); 320 const char *comp_name[] = { 321 [IH_COMP_NONE] = "", 322 [IH_COMP_GZIP] = "GZIP", 323 [IH_COMP_BZIP2] = "BZIP2", 324 [IH_COMP_LZMA] = "LZMA", 325 [IH_COMP_LZO] = "LZO", 326 [IH_COMP_LZ4] = "LZ4", 327 [IH_COMP_ZIMAGE]= "ZIMAGE", 328 }; 329 330 if (comp_type == IH_COMP_NONE) 331 printf(" %s %s from 0x%08lx to 0x%08lx ... ", 332 is_xip ? "XIP" : "Loading", name, src, dst); 333 else 334 printf(" Uncompressing %s %s from 0x%08lx to 0x%08lx ... ", 335 comp_name[comp_type], name, src, dst); 336 } 337 338 /** 339 * handle_decomp_error() - display a decompression error 340 * 341 * This function tries to produce a useful message. In the case where the 342 * uncompressed size is the same as the available space, we can assume that 343 * the image is too large for the buffer. 344 * 345 * @comp_type: Compression type being used (IH_COMP_...) 346 * @uncomp_size: Number of bytes uncompressed 347 * @unc_len: Amount of space available for decompression 348 * @ret: Error code to report 349 * @return BOOTM_ERR_RESET, indicating that the board must be reset 350 */ 351 static int handle_decomp_error(int comp_type, size_t uncomp_size, 352 size_t unc_len, int ret) 353 { 354 const char *name = genimg_get_comp_name(comp_type); 355 356 if (uncomp_size >= unc_len) 357 printf("Image too large(0x%lx >= 0x%lx): increase CONFIG_SYS_BOOTM_LEN\n", 358 (ulong)uncomp_size, (ulong)unc_len); 359 else 360 printf("%s: uncompress error %d\n", name, ret); 361 362 /* 363 * The decompression routines are now safe, so will not write beyond 364 * their bounds. Probably it is not necessary to reset, but maintain 365 * the current behaviour for now. 366 */ 367 printf("Must RESET board to recover\n"); 368 #ifndef USE_HOSTCC 369 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE); 370 #endif 371 372 return BOOTM_ERR_RESET; 373 } 374 375 int bootm_parse_comp(const unsigned char *hdr) 376 { 377 #if defined(CONFIG_CMD_BOOTZ) 378 ulong start, end; 379 380 if (!bootz_setup((ulong)hdr, &start, &end)) 381 return IH_COMP_ZIMAGE; 382 #endif 383 #if defined(CONFIG_LZ4) 384 if (lz4_is_valid_header(hdr)) 385 return IH_COMP_LZ4; 386 #endif 387 #if defined(CONFIG_LZO) 388 if (lzop_is_valid_header(hdr)) 389 return IH_COMP_LZO; 390 #endif 391 #if defined(CONFIG_GZIP) 392 if (gzip_parse_header(hdr, 0xffff) > 0) 393 return IH_COMP_GZIP; 394 #endif 395 #if defined(CONFIG_BZIP2) 396 if ((hdr[0] == 'B') && (hdr[1] == 'Z') && (hdr[2] == 'h')) 397 return IH_COMP_BZIP2; 398 #endif 399 #if defined(CONFIG_LZMA) 400 if (lzma_is_valid(hdr)) 401 return IH_COMP_LZMA; 402 #endif 403 404 return IH_COMP_NONE; 405 } 406 407 int bootm_decomp_image(int comp, ulong load, ulong image_start, int type, 408 void *load_buf, void *image_buf, ulong image_len, 409 uint unc_len, ulong *load_end) 410 { 411 int ret = 0; 412 413 *load_end = load; 414 print_decomp_msg(comp, type, load == image_start, 415 (ulong)image_buf, (ulong)load_buf); 416 417 /* 418 * Load the image to the right place, decompressing if needed. After 419 * this, image_len will be set to the number of uncompressed bytes 420 * loaded, ret will be non-zero on error. 421 */ 422 switch (comp) { 423 case IH_COMP_NONE: 424 if (load == image_start) 425 break; 426 if (image_len <= unc_len) 427 memmove_wd(load_buf, image_buf, image_len, CHUNKSZ); 428 else 429 ret = 1; 430 break; 431 #ifdef CONFIG_GZIP 432 case IH_COMP_GZIP: { 433 ret = gunzip(load_buf, unc_len, image_buf, &image_len); 434 break; 435 } 436 #endif /* CONFIG_GZIP */ 437 #ifdef CONFIG_BZIP2 438 case IH_COMP_BZIP2: { 439 uint size = unc_len; 440 441 /* 442 * If we've got less than 4 MB of malloc() space, 443 * use slower decompression algorithm which requires 444 * at most 2300 KB of memory. 445 */ 446 ret = BZ2_bzBuffToBuffDecompress(load_buf, &size, 447 image_buf, image_len, 448 CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0); 449 image_len = size; 450 break; 451 } 452 #endif /* CONFIG_BZIP2 */ 453 #ifdef CONFIG_LZMA 454 case IH_COMP_LZMA: { 455 SizeT lzma_len = unc_len; 456 457 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len, 458 image_buf, image_len); 459 image_len = lzma_len; 460 break; 461 } 462 #endif /* CONFIG_LZMA */ 463 #ifdef CONFIG_LZO 464 case IH_COMP_LZO: { 465 size_t size = unc_len; 466 467 ret = lzop_decompress(image_buf, image_len, load_buf, &size); 468 image_len = size; 469 break; 470 } 471 #endif /* CONFIG_LZO */ 472 #ifdef CONFIG_LZ4 473 case IH_COMP_LZ4: { 474 size_t size = unc_len; 475 476 ret = ulz4fn(image_buf, image_len, load_buf, &size); 477 image_len = size; 478 break; 479 } 480 #endif /* CONFIG_LZ4 */ 481 default: 482 printf("Unimplemented compression type %d\n", comp); 483 return BOOTM_ERR_UNIMPLEMENTED; 484 } 485 486 if (ret) 487 return handle_decomp_error(comp, image_len, unc_len, ret); 488 *load_end = load + image_len; 489 490 if (comp == IH_COMP_NONE || comp == IH_COMP_ZIMAGE) 491 puts("OK\n"); 492 else 493 printf("with %08lx bytes OK\n", image_len); 494 495 return 0; 496 } 497 498 #ifndef USE_HOSTCC 499 static int bootm_load_os(bootm_headers_t *images, unsigned long *load_end, 500 int boot_progress) 501 { 502 image_info_t os = images->os; 503 ulong load = os.load; 504 ulong blob_start = os.start; 505 ulong blob_end = os.end; 506 ulong image_start = os.image_start; 507 ulong image_len = os.image_len; 508 bool no_overlap; 509 void *load_buf, *image_buf; 510 int err; 511 512 load_buf = map_sysmem(load, 0); 513 image_buf = map_sysmem(os.image_start, image_len); 514 err = bootm_decomp_image(os.comp, load, os.image_start, os.type, 515 load_buf, image_buf, image_len, 516 CONFIG_SYS_BOOTM_LEN, load_end); 517 if (err) { 518 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE); 519 return err; 520 } 521 flush_cache(load, ALIGN(*load_end - load, ARCH_DMA_MINALIGN)); 522 523 debug(" kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end); 524 bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED); 525 526 no_overlap = (os.comp == IH_COMP_NONE && load == image_start); 527 528 if (!no_overlap && (load < blob_end) && (*load_end > blob_start)) { 529 printf("images.os.start = 0x%lX, images.os.end = 0x%lx\n", 530 blob_start, blob_end); 531 printf("images.os.load = 0x%lx, load_end = 0x%lx\n", load, 532 *load_end); 533 534 /* Check what type of image this is. */ 535 if (images->legacy_hdr_valid) { 536 if (image_get_type(&images->legacy_hdr_os_copy) 537 == IH_TYPE_MULTI) 538 puts("WARNING: legacy format multi component image overwritten\n"); 539 return BOOTM_ERR_OVERLAP; 540 } else { 541 puts("ERROR: new format image overwritten - must RESET the board to recover\n"); 542 bootstage_error(BOOTSTAGE_ID_OVERWRITTEN); 543 return BOOTM_ERR_RESET; 544 } 545 } 546 547 return 0; 548 } 549 550 /** 551 * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot 552 * 553 * @return interrupt flag (0 if interrupts were disabled, non-zero if they were 554 * enabled) 555 */ 556 ulong bootm_disable_interrupts(void) 557 { 558 ulong iflag; 559 560 /* 561 * Do not go further if usb is boot device, 562 * We may access usb at late sequence. 563 */ 564 if (!strcmp(env_get("devtype"), "usb")) 565 return 0; 566 567 /* 568 * We have reached the point of no return: we are going to 569 * overwrite all exception vector code, so we cannot easily 570 * recover from any failures any more... 571 */ 572 iflag = disable_interrupts(); 573 #ifdef CONFIG_NETCONSOLE 574 /* Stop the ethernet stack if NetConsole could have left it up */ 575 eth_halt(); 576 # ifndef CONFIG_DM_ETH 577 eth_unregister(eth_get_dev()); 578 # endif 579 #endif 580 581 #if defined(CONFIG_CMD_USB) 582 /* 583 * turn off USB to prevent the host controller from writing to the 584 * SDRAM while Linux is booting. This could happen (at least for OHCI 585 * controller), because the HCCA (Host Controller Communication Area) 586 * lies within the SDRAM and the host controller writes continously to 587 * this area (as busmaster!). The HccaFrameNumber is for example 588 * updated every 1 ms within the HCCA structure in SDRAM! For more 589 * details see the OpenHCI specification. 590 */ 591 usb_stop(); 592 #endif 593 return iflag; 594 } 595 596 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY) 597 598 #define CONSOLE_ARG "console=" 599 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1) 600 601 static void fixup_silent_linux(void) 602 { 603 char *buf; 604 const char *env_val; 605 char *cmdline = env_get("bootargs"); 606 int want_silent; 607 608 /* 609 * Only fix cmdline when requested. The environment variable can be: 610 * 611 * no - we never fixup 612 * yes - we always fixup 613 * unset - we rely on the console silent flag 614 */ 615 want_silent = env_get_yesno("silent_linux"); 616 if (want_silent == 0) 617 return; 618 else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT)) 619 return; 620 621 debug("before silent fix-up: %s\n", cmdline); 622 if (cmdline && (cmdline[0] != '\0')) { 623 char *start = strstr(cmdline, CONSOLE_ARG); 624 625 /* Allocate space for maximum possible new command line */ 626 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1); 627 if (!buf) { 628 debug("%s: out of memory\n", __func__); 629 return; 630 } 631 632 if (start) { 633 char *end = strchr(start, ' '); 634 int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN; 635 636 strncpy(buf, cmdline, num_start_bytes); 637 if (end) 638 strcpy(buf + num_start_bytes, end); 639 else 640 buf[num_start_bytes] = '\0'; 641 } else { 642 sprintf(buf, "%s %s", cmdline, CONSOLE_ARG); 643 } 644 env_val = buf; 645 } else { 646 buf = NULL; 647 env_val = CONSOLE_ARG; 648 } 649 650 env_set("bootargs", env_val); 651 debug("after silent fix-up: %s\n", env_val); 652 free(buf); 653 } 654 #endif /* CONFIG_SILENT_CONSOLE */ 655 656 /** 657 * Execute selected states of the bootm command. 658 * 659 * Note the arguments to this state must be the first argument, Any 'bootm' 660 * or sub-command arguments must have already been taken. 661 * 662 * Note that if states contains more than one flag it MUST contain 663 * BOOTM_STATE_START, since this handles and consumes the command line args. 664 * 665 * Also note that aside from boot_os_fn functions and bootm_load_os no other 666 * functions we store the return value of in 'ret' may use a negative return 667 * value, without special handling. 668 * 669 * @param cmdtp Pointer to bootm command table entry 670 * @param flag Command flags (CMD_FLAG_...) 671 * @param argc Number of subcommand arguments (0 = no arguments) 672 * @param argv Arguments 673 * @param states Mask containing states to run (BOOTM_STATE_...) 674 * @param images Image header information 675 * @param boot_progress 1 to show boot progress, 0 to not do this 676 * @return 0 if ok, something else on error. Some errors will cause this 677 * function to perform a reboot! If states contains BOOTM_STATE_OS_GO 678 * then the intent is to boot an OS, so this function will not return 679 * unless the image type is standalone. 680 */ 681 int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[], 682 int states, bootm_headers_t *images, int boot_progress) 683 { 684 boot_os_fn *boot_fn; 685 ulong iflag = 0; 686 int ret = 0, need_boot_fn; 687 688 images->state |= states; 689 690 /* 691 * Work through the states and see how far we get. We stop on 692 * any error. 693 */ 694 if (states & BOOTM_STATE_START) 695 ret = bootm_start(cmdtp, flag, argc, argv); 696 697 if (!ret && (states & BOOTM_STATE_FINDOS)) 698 ret = bootm_find_os(cmdtp, flag, argc, argv); 699 700 if (!ret && (states & BOOTM_STATE_FINDOTHER)) 701 ret = bootm_find_other(cmdtp, flag, argc, argv); 702 703 /* Load the OS */ 704 if (!ret && (states & BOOTM_STATE_LOADOS)) { 705 ulong load_end; 706 707 iflag = bootm_disable_interrupts(); 708 ret = bootm_load_os(images, &load_end, 0); 709 if (ret == 0) 710 lmb_reserve(&images->lmb, images->os.load, 711 (load_end - images->os.load)); 712 else if (ret && ret != BOOTM_ERR_OVERLAP) 713 goto err; 714 else if (ret == BOOTM_ERR_OVERLAP) 715 ret = 0; 716 } 717 718 /* Resever memory before any lmb_alloc, as early as possible */ 719 #if IMAGE_ENABLE_OF_LIBFDT && defined(CONFIG_LMB) 720 if (!ret && ((states & BOOTM_STATE_RAMDISK) || 721 (states & BOOTM_STATE_FDT))) 722 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr); 723 #endif 724 /* Relocate the ramdisk */ 725 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH 726 if (!ret && (states & BOOTM_STATE_RAMDISK)) { 727 ulong rd_len = images->rd_end - images->rd_start; 728 729 ret = boot_ramdisk_high(&images->lmb, images->rd_start, 730 rd_len, &images->initrd_start, &images->initrd_end); 731 if (!ret) { 732 env_set_hex("initrd_start", images->initrd_start); 733 env_set_hex("initrd_end", images->initrd_end); 734 } 735 } 736 #endif 737 #if IMAGE_ENABLE_OF_LIBFDT && defined(CONFIG_LMB) 738 if (!ret && (states & BOOTM_STATE_FDT)) { 739 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr, 740 &images->ft_len); 741 } 742 #endif 743 744 /* From now on, we need the OS boot function */ 745 if (ret) 746 return ret; 747 boot_fn = bootm_os_get_boot_func(images->os.os); 748 need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE | 749 BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP | 750 BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO); 751 if (boot_fn == NULL && need_boot_fn) { 752 if (iflag) 753 enable_interrupts(); 754 printf("ERROR: booting os '%s' (%d) is not supported\n", 755 genimg_get_os_name(images->os.os), images->os.os); 756 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS); 757 return 1; 758 } 759 760 761 /* Call various other states that are not generally used */ 762 if (!ret && (states & BOOTM_STATE_OS_CMDLINE)) 763 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images); 764 if (!ret && (states & BOOTM_STATE_OS_BD_T)) 765 ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images); 766 if (!ret && (states & BOOTM_STATE_OS_PREP)) { 767 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY) 768 if (images->os.os == IH_OS_LINUX) 769 fixup_silent_linux(); 770 #endif 771 arch_preboot_os(BOOTM_STATE_OS_PREP); 772 773 ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images); 774 } 775 776 #ifdef CONFIG_TRACE 777 /* Pretend to run the OS, then run a user command */ 778 if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) { 779 char *cmd_list = env_get("fakegocmd"); 780 781 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO, 782 images, boot_fn); 783 if (!ret && cmd_list) 784 ret = run_command_list(cmd_list, -1, flag); 785 } 786 #endif 787 788 /* Check for unsupported subcommand. */ 789 if (ret) { 790 puts("subcommand not supported\n"); 791 return ret; 792 } 793 794 /* Now run the OS! We hope this doesn't return */ 795 if (!ret && (states & BOOTM_STATE_OS_GO)) 796 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO, 797 images, boot_fn); 798 799 /* Deal with any fallout */ 800 err: 801 if (iflag) 802 enable_interrupts(); 803 804 if (ret == BOOTM_ERR_UNIMPLEMENTED) 805 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL); 806 else if (ret == BOOTM_ERR_RESET) 807 do_reset(cmdtp, flag, argc, argv); 808 809 return ret; 810 } 811 812 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 813 /** 814 * image_get_kernel - verify legacy format kernel image 815 * @img_addr: in RAM address of the legacy format image to be verified 816 * @verify: data CRC verification flag 817 * 818 * image_get_kernel() verifies legacy image integrity and returns pointer to 819 * legacy image header if image verification was completed successfully. 820 * 821 * returns: 822 * pointer to a legacy image header if valid image was found 823 * otherwise return NULL 824 */ 825 static image_header_t *image_get_kernel(ulong img_addr, int verify) 826 { 827 image_header_t *hdr = (image_header_t *)img_addr; 828 829 if (!image_check_magic(hdr)) { 830 puts("Bad Magic Number\n"); 831 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC); 832 return NULL; 833 } 834 bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER); 835 836 if (!image_check_hcrc(hdr)) { 837 puts("Bad Header Checksum\n"); 838 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER); 839 return NULL; 840 } 841 842 bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM); 843 image_print_contents(hdr); 844 845 if (verify) { 846 puts(" Verifying Checksum ... "); 847 if (!image_check_dcrc(hdr)) { 848 printf("Bad Data CRC\n"); 849 bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM); 850 return NULL; 851 } 852 puts("OK\n"); 853 } 854 bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH); 855 856 if (!image_check_target_arch(hdr)) { 857 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr)); 858 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH); 859 return NULL; 860 } 861 return hdr; 862 } 863 #endif 864 865 /** 866 * boot_get_kernel - find kernel image 867 * @os_data: pointer to a ulong variable, will hold os data start address 868 * @os_len: pointer to a ulong variable, will hold os data length 869 * 870 * boot_get_kernel() tries to find a kernel image, verifies its integrity 871 * and locates kernel data. 872 * 873 * returns: 874 * pointer to image header if valid image was found, plus kernel start 875 * address and length, otherwise NULL 876 */ 877 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc, 878 char * const argv[], bootm_headers_t *images, 879 ulong *os_data, ulong *os_len) 880 { 881 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 882 image_header_t *hdr; 883 #endif 884 ulong img_addr; 885 const void *buf; 886 const char *fit_uname_config = NULL; 887 const char *fit_uname_kernel = NULL; 888 #if IMAGE_ENABLE_FIT 889 int os_noffset; 890 #endif 891 892 img_addr = genimg_get_kernel_addr_fit(argc < 1 ? NULL : argv[0], 893 &fit_uname_config, 894 &fit_uname_kernel); 895 896 bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC); 897 898 /* check image type, for FIT images get FIT kernel node */ 899 *os_data = *os_len = 0; 900 buf = map_sysmem(img_addr, 0); 901 switch (genimg_get_format(buf)) { 902 #if defined(CONFIG_IMAGE_FORMAT_LEGACY) 903 case IMAGE_FORMAT_LEGACY: 904 printf("## Booting kernel from Legacy Image at %08lx ...\n", 905 img_addr); 906 hdr = image_get_kernel(img_addr, images->verify); 907 if (!hdr) 908 return NULL; 909 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE); 910 911 /* get os_data and os_len */ 912 switch (image_get_type(hdr)) { 913 case IH_TYPE_KERNEL: 914 case IH_TYPE_KERNEL_NOLOAD: 915 *os_data = image_get_data(hdr); 916 *os_len = image_get_data_size(hdr); 917 break; 918 case IH_TYPE_MULTI: 919 image_multi_getimg(hdr, 0, os_data, os_len); 920 break; 921 case IH_TYPE_STANDALONE: 922 *os_data = image_get_data(hdr); 923 *os_len = image_get_data_size(hdr); 924 break; 925 default: 926 if (cmdtp) 927 printf("Wrong Image Type for %s command\n", 928 cmdtp->name); 929 bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE); 930 return NULL; 931 } 932 933 /* 934 * copy image header to allow for image overwrites during 935 * kernel decompression. 936 */ 937 memmove(&images->legacy_hdr_os_copy, hdr, 938 sizeof(image_header_t)); 939 940 /* save pointer to image header */ 941 images->legacy_hdr_os = hdr; 942 943 images->legacy_hdr_valid = 1; 944 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE); 945 break; 946 #endif 947 #if IMAGE_ENABLE_FIT 948 case IMAGE_FORMAT_FIT: 949 os_noffset = fit_image_load(images, img_addr, 950 &fit_uname_kernel, &fit_uname_config, 951 IH_ARCH_DEFAULT, IH_TYPE_KERNEL, 952 BOOTSTAGE_ID_FIT_KERNEL_START, 953 FIT_LOAD_IGNORED, os_data, os_len); 954 if (os_noffset < 0) 955 return NULL; 956 957 images->fit_hdr_os = map_sysmem(img_addr, 0); 958 images->fit_uname_os = fit_uname_kernel; 959 images->fit_uname_cfg = fit_uname_config; 960 images->fit_noffset_os = os_noffset; 961 break; 962 #endif 963 #ifdef CONFIG_ANDROID_BOOT_IMAGE 964 case IMAGE_FORMAT_ANDROID: 965 printf("## Booting Android Image at 0x%08lx ...\n", img_addr); 966 if (android_image_get_kernel(buf, images->verify, 967 os_data, os_len)) 968 return NULL; 969 break; 970 #endif 971 default: 972 if (cmdtp) 973 printf("Wrong Image Format for %s command\n", 974 cmdtp->name); 975 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO); 976 return NULL; 977 } 978 979 debug(" kernel data at 0x%08lx, len = 0x%08lx (%ld)\n", 980 *os_data, *os_len, *os_len); 981 982 return buf; 983 } 984 #else /* USE_HOSTCC */ 985 986 void memmove_wd(void *to, void *from, size_t len, ulong chunksz) 987 { 988 memmove(to, from, len); 989 } 990 991 static int bootm_host_load_image(const void *fit, int req_image_type, int index) 992 { 993 const char *fit_uname_config = NULL; 994 ulong data, len; 995 bootm_headers_t images; 996 int noffset; 997 ulong load_end; 998 uint8_t image_type; 999 uint8_t imape_comp; 1000 void *load_buf; 1001 int ret; 1002 1003 memset(&images, '\0', sizeof(images)); 1004 images.verify = 1; 1005 noffset = fit_image_load_index(&images, (ulong)fit, 1006 NULL, &fit_uname_config, 1007 IH_ARCH_DEFAULT, req_image_type, index, -1, 1008 FIT_LOAD_IGNORED, &data, &len); 1009 if (noffset < 0) 1010 return noffset; 1011 if (fit_image_get_type(fit, noffset, &image_type)) { 1012 puts("Can't get image type!\n"); 1013 return -EINVAL; 1014 } 1015 1016 if (fit_image_get_comp(fit, noffset, &imape_comp)) { 1017 puts("Can't get image compression!\n"); 1018 return -EINVAL; 1019 } 1020 1021 /* Allow the image to expand by a factor of 4, should be safe */ 1022 load_buf = malloc((1 << 20) + len * 4); 1023 ret = bootm_decomp_image(imape_comp, 0, data, image_type, load_buf, 1024 (void *)data, len, CONFIG_SYS_BOOTM_LEN, 1025 &load_end); 1026 free(load_buf); 1027 1028 if (ret && ret != BOOTM_ERR_UNIMPLEMENTED) 1029 return ret; 1030 1031 return 0; 1032 } 1033 1034 int bootm_host_load_images(const void *fit, int cfg_noffset, int is_spl) 1035 { 1036 static uint8_t image_types[] = { 1037 IH_TYPE_KERNEL, 1038 IH_TYPE_FLATDT, 1039 IH_TYPE_RAMDISK, 1040 }; 1041 #ifdef CONFIG_SPL_ATF 1042 static uint8_t image_types_spl[] = { 1043 IH_TYPE_FLATDT, 1044 IH_TYPE_FIRMWARE, 1045 IH_TYPE_LOADABLE, 1046 IH_TYPE_LOADABLE, 1047 IH_TYPE_LOADABLE, 1048 }; 1049 #else 1050 static uint8_t image_types_spl[] = { 1051 IH_TYPE_FLATDT, 1052 IH_TYPE_FIRMWARE, 1053 IH_TYPE_LOADABLE, 1054 }; 1055 #endif 1056 int loadable_index = 0; 1057 int err = 0; 1058 int index; 1059 int i; 1060 1061 for (i = 0; !is_spl && i < ARRAY_SIZE(image_types); i++) { 1062 int ret; 1063 1064 ret = bootm_host_load_image(fit, image_types[i], 0); 1065 if (!err && ret && ret != -ENOENT) 1066 err = ret; 1067 } 1068 1069 for (i = 0; is_spl && i < ARRAY_SIZE(image_types_spl); i++) { 1070 int ret; 1071 1072 if (image_types_spl[i] == IH_TYPE_LOADABLE) 1073 index = loadable_index++; 1074 else 1075 index = 0; 1076 1077 ret = bootm_host_load_image(fit, image_types_spl[i], index); 1078 if (!err && ret && ret != -ENOENT) 1079 err = ret; 1080 } 1081 1082 /* Return the first error we found */ 1083 return err; 1084 } 1085 1086 #endif /* ndef USE_HOSTCC */ 1087