boot/bootm.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2000-2009
   4  * Wolfgang Denk, DENX Software Engineering, [email protected].
   5  */
   6
   7 #ifndef USE_HOSTCC
   8 #include <common.h>
   9 #include <bootm.h>
  10 #include <bootstage.h>
  11 #include <cli.h>
  12 #include <command.h>
  13 #include <cpu_func.h>
  14 #include <env.h>
  15 #include <errno.h>
  16 #include <fdt_support.h>
  17 #include <irq_func.h>
  18 #include <lmb.h>
  19 #include <log.h>
  20 #include <malloc.h>
  21 #include <mapmem.h>
  22 #include <net.h>
  23 #include <asm/cache.h>
  24 #include <asm/global_data.h>
  25 #include <asm/io.h>
  26 #include <linux/sizes.h>
  27 #include <tpm-v2.h>
  28 #if defined(CONFIG_CMD_USB)
  29 #include <usb.h>
  30 #endif
  31 #else
  32 #include "mkimage.h"
  33 #endif
  34
  35 #include <bootm.h>
  36 #include <image.h>
  37
  38 #define MAX_CMDLINE_SIZE        SZ_4K
  39
  40 #define IH_INITRD_ARCH IH_ARCH_DEFAULT
  41
  42 #ifndef USE_HOSTCC
  43
  44 DECLARE_GLOBAL_DATA_PTR;
  45
  46 struct bootm_headers images;            /* pointers to os/initrd/fdt images */
  47
  48 __weak void board_quiesce_devices(void)
  49 {
  50 }
  51
  52 #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
  53 /**
  54  * image_get_kernel - verify legacy format kernel image
  55  * @img_addr: in RAM address of the legacy format image to be verified
  56  * @verify: data CRC verification flag
  57  *
  58  * image_get_kernel() verifies legacy image integrity and returns pointer to
  59  * legacy image header if image verification was completed successfully.
  60  *
  61  * returns:
  62  *     pointer to a legacy image header if valid image was found
  63  *     otherwise return NULL
  64  */
  65 static struct legacy_img_hdr *image_get_kernel(ulong img_addr, int verify)
  66 {
  67         struct legacy_img_hdr *hdr = (struct legacy_img_hdr *)img_addr;
  68
  69         if (!image_check_magic(hdr)) {
  70                 puts("Bad Magic Number\n");
  71                 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
  72                 return NULL;
  73         }
  74         bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
  75
  76         if (!image_check_hcrc(hdr)) {
  77                 puts("Bad Header Checksum\n");
  78                 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
  79                 return NULL;
  80         }
  81
  82         bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
  83         image_print_contents(hdr);
  84
  85         if (verify) {
  86                 puts("   Verifying Checksum ... ");
  87                 if (!image_check_dcrc(hdr)) {
  88                         printf("Bad Data CRC\n");
  89                         bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
  90                         return NULL;
  91                 }
  92                 puts("OK\n");
  93         }
  94         bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
  95
  96         if (!image_check_target_arch(hdr)) {
  97                 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
  98                 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
  99                 return NULL;
 100         }
 101         return hdr;
 102 }
 103 #endif
 104
 105 /**
 106  * boot_get_kernel() - find kernel image
 107  *
 108  * @addr_fit: first argument to bootm: address, fit configuration, etc.
 109  * @os_data: pointer to a ulong variable, will hold os data start address
 110  * @os_len: pointer to a ulong variable, will hold os data length
 111  *     address and length, otherwise NULL
 112  *     pointer to image header if valid image was found, plus kernel start
 113  * @kernp: image header if valid image was found, otherwise NULL
 114  *
 115  * boot_get_kernel() tries to find a kernel image, verifies its integrity
 116  * and locates kernel data.
 117  *
 118  * Return: 0 on success, -ve on error. -EPROTOTYPE means that the image is in
 119  * a wrong or unsupported format
 120  */
 121 static int boot_get_kernel(const char *addr_fit, struct bootm_headers *images,
 122                            ulong *os_data, ulong *os_len, const void **kernp)
 123 {
 124 #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
 125         struct legacy_img_hdr   *hdr;
 126 #endif
 127         ulong           img_addr;
 128         const void *buf;
 129         const char *fit_uname_config = NULL, *fit_uname_kernel = NULL;
 130 #if CONFIG_IS_ENABLED(FIT)
 131         int             os_noffset;
 132 #endif
 133
 134 #ifdef CONFIG_ANDROID_BOOT_IMAGE
 135         const void *boot_img;
 136         const void *vendor_boot_img;
 137 #endif
 138         img_addr = genimg_get_kernel_addr_fit(addr_fit, &fit_uname_config,
 139                                               &fit_uname_kernel);
 140
 141         if (IS_ENABLED(CONFIG_CMD_BOOTM_PRE_LOAD))
 142                 img_addr += image_load_offset;
 143
 144         bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
 145
 146         /* check image type, for FIT images get FIT kernel node */
 147         *os_data = *os_len = 0;
 148         buf = map_sysmem(img_addr, 0);
 149         switch (genimg_get_format(buf)) {
 150 #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
 151         case IMAGE_FORMAT_LEGACY:
 152                 printf("## Booting kernel from Legacy Image at %08lx ...\n",
 153                        img_addr);
 154                 hdr = image_get_kernel(img_addr, images->verify);
 155                 if (!hdr)
 156                         return -EINVAL;
 157                 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 158
 159                 /* get os_data and os_len */
 160                 switch (image_get_type(hdr)) {
 161                 case IH_TYPE_KERNEL:
 162                 case IH_TYPE_KERNEL_NOLOAD:
 163                         *os_data = image_get_data(hdr);
 164                         *os_len = image_get_data_size(hdr);
 165                         break;
 166                 case IH_TYPE_MULTI:
 167                         image_multi_getimg(hdr, 0, os_data, os_len);
 168                         break;
 169                 case IH_TYPE_STANDALONE:
 170                         *os_data = image_get_data(hdr);
 171                         *os_len = image_get_data_size(hdr);
 172                         break;
 173                 default:
 174                         bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 175                         return -EPROTOTYPE;
 176                 }
 177
 178                 /*
 179                  * copy image header to allow for image overwrites during
 180                  * kernel decompression.
 181                  */
 182                 memmove(&images->legacy_hdr_os_copy, hdr,
 183                         sizeof(struct legacy_img_hdr));
 184
 185                 /* save pointer to image header */
 186                 images->legacy_hdr_os = hdr;
 187
 188                 images->legacy_hdr_valid = 1;
 189                 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
 190                 break;
 191 #endif
 192 #if CONFIG_IS_ENABLED(FIT)
 193         case IMAGE_FORMAT_FIT:
 194                 os_noffset = fit_image_load(images, img_addr,
 195                                 &fit_uname_kernel, &fit_uname_config,
 196                                 IH_ARCH_DEFAULT, IH_TYPE_KERNEL,
 197                                 BOOTSTAGE_ID_FIT_KERNEL_START,
 198                                 FIT_LOAD_IGNORED, os_data, os_len);
 199                 if (os_noffset < 0)
 200                         return -ENOENT;
 201
 202                 images->fit_hdr_os = map_sysmem(img_addr, 0);
 203                 images->fit_uname_os = fit_uname_kernel;
 204                 images->fit_uname_cfg = fit_uname_config;
 205                 images->fit_noffset_os = os_noffset;
 206                 break;
 207 #endif
 208 #ifdef CONFIG_ANDROID_BOOT_IMAGE
 209         case IMAGE_FORMAT_ANDROID: {
 210                 int ret;
 211
 212                 boot_img = buf;
 213                 vendor_boot_img = NULL;
 214                 if (IS_ENABLED(CONFIG_CMD_ABOOTIMG)) {
 215                         boot_img = map_sysmem(get_abootimg_addr(), 0);
 216                         vendor_boot_img = map_sysmem(get_avendor_bootimg_addr(), 0);
 217                 }
 218                 printf("## Booting Android Image at 0x%08lx ...\n", img_addr);
 219                 ret = android_image_get_kernel(boot_img, vendor_boot_img,
 220                                                images->verify, os_data, os_len);
 221                 if (IS_ENABLED(CONFIG_CMD_ABOOTIMG)) {
 222                         unmap_sysmem(vendor_boot_img);
 223                         unmap_sysmem(boot_img);
 224                 }
 225                 if (ret)
 226                         return ret;
 227                 break;
 228         }
 229 #endif
 230         default:
 231                 bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
 232                 return -EPROTOTYPE;
 233         }
 234
 235         debug("   kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
 236               *os_data, *os_len, *os_len);
 237         *kernp = buf;
 238
 239         return 0;
 240 }
 241
 242 #ifdef CONFIG_LMB
 243 static void boot_start_lmb(struct bootm_headers *images)
 244 {
 245         ulong           mem_start;
 246         phys_size_t     mem_size;
 247
 248         mem_start = env_get_bootm_low();
 249         mem_size = env_get_bootm_size();
 250
 251         lmb_init_and_reserve_range(&images->lmb, (phys_addr_t)mem_start,
 252                                    mem_size, NULL);
 253 }
 254 #else
 255 #define lmb_reserve(lmb, base, size)
 256 static inline void boot_start_lmb(struct bootm_headers *images) { }
 257 #endif
 258
 259 static int bootm_start(void)
 260 {
 261         memset((void *)&images, 0, sizeof(images));
 262         images.verify = env_get_yesno("verify");
 263
 264         boot_start_lmb(&images);
 265
 266         bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
 267         images.state = BOOTM_STATE_START;
 268
 269         return 0;
 270 }
 271
 272 static ulong bootm_data_addr(const char *addr_str)
 273 {
 274         ulong addr;
 275
 276         if (addr_str)
 277                 addr = hextoul(addr_str, NULL);
 278         else
 279                 addr = image_load_addr;
 280
 281         return addr;
 282 }
 283
 284 /**
 285  * bootm_pre_load() - Handle the pre-load processing
 286  *
 287  * This can be used to do a full signature check of the image, for example.
 288  * It calls image_pre_load() with the data address of the image to check.
 289  *
 290  * @addr_str: String containing load address in hex, or NULL to use
 291  * image_load_addr
 292  * Return: 0 if OK, CMD_RET_FAILURE on failure
 293  */
 294 static int bootm_pre_load(const char *addr_str)
 295 {
 296         ulong data_addr = bootm_data_addr(addr_str);
 297         int ret = 0;
 298
 299         if (IS_ENABLED(CONFIG_CMD_BOOTM_PRE_LOAD))
 300                 ret = image_pre_load(data_addr);
 301
 302         if (ret)
 303                 ret = CMD_RET_FAILURE;
 304
 305         return ret;
 306 }
 307
 308 /**
 309  * bootm_find_os(): Find the OS to boot
 310  *
 311  * @cmd_name: Command name that started this boot, e.g. "bootm"
 312  * @addr_fit: Address and/or FIT specifier (first arg of bootm command)
 313  * Return: 0 on success, -ve on error
 314  */
 315 static int bootm_find_os(const char *cmd_name, const char *addr_fit)
 316 {
 317         const void *os_hdr;
 318 #ifdef CONFIG_ANDROID_BOOT_IMAGE
 319         const void *vendor_boot_img;
 320         const void *boot_img;
 321 #endif
 322         bool ep_found = false;
 323         int ret;
 324
 325         /* get kernel image header, start address and length */
 326         ret = boot_get_kernel(addr_fit, &images, &images.os.image_start,
 327                               &images.os.image_len, &os_hdr);
 328         if (ret) {
 329                 if (ret == -EPROTOTYPE)
 330                         printf("Wrong Image Type for %s command\n", cmd_name);
 331
 332                 printf("ERROR %dE: can't get kernel image!\n", ret);
 333                 return 1;
 334         }
 335
 336         /* get image parameters */
 337         switch (genimg_get_format(os_hdr)) {
 338 #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
 339         case IMAGE_FORMAT_LEGACY:
 340                 images.os.type = image_get_type(os_hdr);
 341                 images.os.comp = image_get_comp(os_hdr);
 342                 images.os.os = image_get_os(os_hdr);
 343
 344                 images.os.end = image_get_image_end(os_hdr);
 345                 images.os.load = image_get_load(os_hdr);
 346                 images.os.arch = image_get_arch(os_hdr);
 347                 break;
 348 #endif
 349 #if CONFIG_IS_ENABLED(FIT)
 350         case IMAGE_FORMAT_FIT:
 351                 if (fit_image_get_type(images.fit_hdr_os,
 352                                        images.fit_noffset_os,
 353                                        &images.os.type)) {
 354                         puts("Can't get image type!\n");
 355                         bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
 356                         return 1;
 357                 }
 358
 359                 if (fit_image_get_comp(images.fit_hdr_os,
 360                                        images.fit_noffset_os,
 361                                        &images.os.comp)) {
 362                         puts("Can't get image compression!\n");
 363                         bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
 364                         return 1;
 365                 }
 366
 367                 if (fit_image_get_os(images.fit_hdr_os, images.fit_noffset_os,
 368                                      &images.os.os)) {
 369                         puts("Can't get image OS!\n");
 370                         bootstage_error(BOOTSTAGE_ID_FIT_OS);
 371                         return 1;
 372                 }
 373
 374                 if (fit_image_get_arch(images.fit_hdr_os,
 375                                        images.fit_noffset_os,
 376                                        &images.os.arch)) {
 377                         puts("Can't get image ARCH!\n");
 378                         return 1;
 379                 }
 380
 381                 images.os.end = fit_get_end(images.fit_hdr_os);
 382
 383                 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
 384                                        &images.os.load)) {
 385                         puts("Can't get image load address!\n");
 386                         bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
 387                         return 1;
 388                 }
 389                 break;
 390 #endif
 391 #ifdef CONFIG_ANDROID_BOOT_IMAGE
 392         case IMAGE_FORMAT_ANDROID:
 393                 boot_img = os_hdr;
 394                 vendor_boot_img = NULL;
 395                 if (IS_ENABLED(CONFIG_CMD_ABOOTIMG)) {
 396                         boot_img = map_sysmem(get_abootimg_addr(), 0);
 397                         vendor_boot_img = map_sysmem(get_avendor_bootimg_addr(), 0);
 398                 }
 399                 images.os.type = IH_TYPE_KERNEL;
 400                 images.os.comp = android_image_get_kcomp(boot_img, vendor_boot_img);
 401                 images.os.os = IH_OS_LINUX;
 402                 images.os.end = android_image_get_end(boot_img, vendor_boot_img);
 403                 images.os.load = android_image_get_kload(boot_img, vendor_boot_img);
 404                 images.ep = images.os.load;
 405                 ep_found = true;
 406                 if (IS_ENABLED(CONFIG_CMD_ABOOTIMG)) {
 407                         unmap_sysmem(vendor_boot_img);
 408                         unmap_sysmem(boot_img);
 409                 }
 410                 break;
 411 #endif
 412         default:
 413                 puts("ERROR: unknown image format type!\n");
 414                 return 1;
 415         }
 416
 417         /* If we have a valid setup.bin, we will use that for entry (x86) */
 418         if (images.os.arch == IH_ARCH_I386 ||
 419             images.os.arch == IH_ARCH_X86_64) {
 420                 ulong len;
 421
 422                 ret = boot_get_setup(&images, IH_ARCH_I386, &images.ep, &len);
 423                 if (ret < 0 && ret != -ENOENT) {
 424                         puts("Could not find a valid setup.bin for x86\n");
 425                         return 1;
 426                 }
 427                 /* Kernel entry point is the setup.bin */
 428         } else if (images.legacy_hdr_valid) {
 429                 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
 430 #if CONFIG_IS_ENABLED(FIT)
 431         } else if (images.fit_uname_os) {
 432                 int ret;
 433
 434                 ret = fit_image_get_entry(images.fit_hdr_os,
 435                                           images.fit_noffset_os, &images.ep);
 436                 if (ret) {
 437                         puts("Can't get entry point property!\n");
 438                         return 1;
 439                 }
 440 #endif
 441         } else if (!ep_found) {
 442                 puts("Could not find kernel entry point!\n");
 443                 return 1;
 444         }
 445
 446         if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
 447                 images.os.load = images.os.image_start;
 448                 images.ep += images.os.image_start;
 449         }
 450
 451         images.os.start = map_to_sysmem(os_hdr);
 452
 453         return 0;
 454 }
 455
 456 /**
 457  * check_overlap() - Check if an image overlaps the OS
 458  *
 459  * @name: Name of image to check (used to print error)
 460  * @base: Base address of image
 461  * @end: End address of image (+1)
 462  * @os_start: Start of OS
 463  * @os_size: Size of OS in bytes
 464  * Return: 0 if OK, -EXDEV if the image overlaps the OS
 465  */
 466 static int check_overlap(const char *name, ulong base, ulong end,
 467                          ulong os_start, ulong os_size)
 468 {
 469         ulong os_end;
 470
 471         if (!base)
 472                 return 0;
 473         os_end = os_start + os_size;
 474
 475         if ((base >= os_start && base < os_end) ||
 476             (end > os_start && end <= os_end) ||
 477             (base < os_start && end >= os_end)) {
 478                 printf("ERROR: %s image overlaps OS image (OS=%lx..%lx)\n",
 479                        name, os_start, os_end);
 480
 481                 return -EXDEV;
 482         }
 483
 484         return 0;
 485 }
 486
 487 int bootm_find_images(ulong img_addr, const char *conf_ramdisk,
 488                       const char *conf_fdt, ulong start, ulong size)
 489 {
 490         const char *select = conf_ramdisk;
 491         char addr_str[17];
 492         void *buf;
 493         int ret;
 494
 495         if (IS_ENABLED(CONFIG_ANDROID_BOOT_IMAGE)) {
 496                 /* Look for an Android boot image */
 497                 buf = map_sysmem(images.os.start, 0);
 498                 if (buf && genimg_get_format(buf) == IMAGE_FORMAT_ANDROID) {
 499                         strcpy(addr_str, simple_xtoa(img_addr));
 500                         select = addr_str;
 501                 }
 502         }
 503
 504         if (conf_ramdisk)
 505                 select = conf_ramdisk;
 506
 507         /* find ramdisk */
 508         ret = boot_get_ramdisk(select, &images, IH_INITRD_ARCH,
 509                                &images.rd_start, &images.rd_end);
 510         if (ret) {
 511                 puts("Ramdisk image is corrupt or invalid\n");
 512                 return 1;
 513         }
 514
 515         /* check if ramdisk overlaps OS image */
 516         if (check_overlap("RD", images.rd_start, images.rd_end, start, size))
 517                 return 1;
 518
 519         if (CONFIG_IS_ENABLED(OF_LIBFDT)) {
 520                 buf = map_sysmem(img_addr, 0);
 521
 522                 /* find flattened device tree */
 523                 ret = boot_get_fdt(buf, conf_fdt, IH_ARCH_DEFAULT, &images,
 524                                    &images.ft_addr, &images.ft_len);
 525                 if (ret) {
 526                         puts("Could not find a valid device tree\n");
 527                         return 1;
 528                 }
 529
 530                 /* check if FDT overlaps OS image */
 531                 if (check_overlap("FDT", map_to_sysmem(images.ft_addr),
 532                                   images.ft_len, start, size))
 533                         return 1;
 534
 535                 if (IS_ENABLED(CONFIG_CMD_FDT))
 536                         set_working_fdt_addr(map_to_sysmem(images.ft_addr));
 537         }
 538
 539 #if CONFIG_IS_ENABLED(FIT)
 540         if (IS_ENABLED(CONFIG_FPGA)) {
 541                 /* find bitstreams */
 542                 ret = boot_get_fpga(&images);
 543                 if (ret) {
 544                         printf("FPGA image is corrupted or invalid\n");
 545                         return 1;
 546                 }
 547         }
 548
 549         /* find all of the loadables */
 550         ret = boot_get_loadable(&images);
 551         if (ret) {
 552                 printf("Loadable(s) is corrupt or invalid\n");
 553                 return 1;
 554         }
 555 #endif
 556
 557         return 0;
 558 }
 559
 560 static int bootm_find_other(ulong img_addr, const char *conf_ramdisk,
 561                             const char *conf_fdt)
 562 {
 563         if ((images.os.type == IH_TYPE_KERNEL ||
 564              images.os.type == IH_TYPE_KERNEL_NOLOAD ||
 565              images.os.type == IH_TYPE_MULTI) &&
 566             (images.os.os == IH_OS_LINUX || images.os.os == IH_OS_VXWORKS ||
 567              images.os.os == IH_OS_EFI || images.os.os == IH_OS_TEE)) {
 568                 return bootm_find_images(img_addr, conf_ramdisk, conf_fdt, 0,
 569                                          0);
 570         }
 571
 572         return 0;
 573 }
 574 #endif /* USE_HOSTC */
 575
 576 #if !defined(USE_HOSTCC) || defined(CONFIG_FIT_SIGNATURE)
 577 /**
 578  * handle_decomp_error() - display a decompression error
 579  *
 580  * This function tries to produce a useful message. In the case where the
 581  * uncompressed size is the same as the available space, we can assume that
 582  * the image is too large for the buffer.
 583  *
 584  * @comp_type:          Compression type being used (IH_COMP_...)
 585  * @uncomp_size:        Number of bytes uncompressed
 586  * @buf_size:           Number of bytes the decompresion buffer was
 587  * @ret:                errno error code received from compression library
 588  * Return: Appropriate BOOTM_ERR_ error code
 589  */
 590 static int handle_decomp_error(int comp_type, size_t uncomp_size,
 591                                size_t buf_size, int ret)
 592 {
 593         const char *name = genimg_get_comp_name(comp_type);
 594
 595         /* ENOSYS means unimplemented compression type, don't reset. */
 596         if (ret == -ENOSYS)
 597                 return BOOTM_ERR_UNIMPLEMENTED;
 598
 599         if (uncomp_size >= buf_size)
 600                 printf("Image too large: increase CONFIG_SYS_BOOTM_LEN\n");
 601         else
 602                 printf("%s: uncompress error %d\n", name, ret);
 603
 604         /*
 605          * The decompression routines are now safe, so will not write beyond
 606          * their bounds. Probably it is not necessary to reset, but maintain
 607          * the current behaviour for now.
 608          */
 609         printf("Must RESET board to recover\n");
 610 #ifndef USE_HOSTCC
 611         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 612 #endif
 613
 614         return BOOTM_ERR_RESET;
 615 }
 616 #endif
 617
 618 #ifndef USE_HOSTCC
 619 static int bootm_load_os(struct bootm_headers *images, int boot_progress)
 620 {
 621         struct image_info os = images->os;
 622         ulong load = os.load;
 623         ulong load_end;
 624         ulong blob_start = os.start;
 625         ulong blob_end = os.end;
 626         ulong image_start = os.image_start;
 627         ulong image_len = os.image_len;
 628         ulong flush_start = ALIGN_DOWN(load, ARCH_DMA_MINALIGN);
 629         bool no_overlap;
 630         void *load_buf, *image_buf;
 631         int err;
 632
 633         /*
 634          * For a "noload" compressed kernel we need to allocate a buffer large
 635          * enough to decompress in to and use that as the load address now.
 636          * Assume that the kernel compression is at most a factor of 4 since
 637          * zstd almost achieves that.
 638          * Use an alignment of 2MB since this might help arm64
 639          */
 640         if (os.type == IH_TYPE_KERNEL_NOLOAD && os.comp != IH_COMP_NONE) {
 641                 ulong req_size = ALIGN(image_len * 4, SZ_1M);
 642
 643                 load = lmb_alloc(&images->lmb, req_size, SZ_2M);
 644                 if (!load)
 645                         return 1;
 646                 os.load = load;
 647                 images->ep = load;
 648                 debug("Allocated %lx bytes at %lx for kernel (size %lx) decompression\n",
 649                       req_size, load, image_len);
 650         }
 651
 652         load_buf = map_sysmem(load, 0);
 653         image_buf = map_sysmem(os.image_start, image_len);
 654         err = image_decomp(os.comp, load, os.image_start, os.type,
 655                            load_buf, image_buf, image_len,
 656                            CONFIG_SYS_BOOTM_LEN, &load_end);
 657         if (err) {
 658                 err = handle_decomp_error(os.comp, load_end - load,
 659                                           CONFIG_SYS_BOOTM_LEN, err);
 660                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 661                 return err;
 662         }
 663         /* We need the decompressed image size in the next steps */
 664         images->os.image_len = load_end - load;
 665
 666         flush_cache(flush_start, ALIGN(load_end, ARCH_DMA_MINALIGN) - flush_start);
 667
 668         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, load_end);
 669         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
 670
 671         no_overlap = (os.comp == IH_COMP_NONE && load == image_start);
 672
 673         if (!no_overlap && load < blob_end && load_end > blob_start) {
 674                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
 675                       blob_start, blob_end);
 676                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
 677                       load_end);
 678
 679                 /* Check what type of image this is. */
 680                 if (images->legacy_hdr_valid) {
 681                         if (image_get_type(&images->legacy_hdr_os_copy)
 682                                         == IH_TYPE_MULTI)
 683                                 puts("WARNING: legacy format multi component image overwritten\n");
 684                         return BOOTM_ERR_OVERLAP;
 685                 } else {
 686                         puts("ERROR: new format image overwritten - must RESET the board to recover\n");
 687                         bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
 688                         return BOOTM_ERR_RESET;
 689                 }
 690         }
 691
 692         if (IS_ENABLED(CONFIG_CMD_BOOTI) && images->os.arch == IH_ARCH_ARM64 &&
 693             images->os.os == IH_OS_LINUX) {
 694                 ulong relocated_addr;
 695                 ulong image_size;
 696                 int ret;
 697
 698                 ret = booti_setup(load, &relocated_addr, &image_size, false);
 699                 if (ret) {
 700                         printf("Failed to prep arm64 kernel (err=%d)\n", ret);
 701                         return BOOTM_ERR_RESET;
 702                 }
 703
 704                 /* Handle BOOTM_STATE_LOADOS */
 705                 if (relocated_addr != load) {
 706                         printf("Moving Image from 0x%lx to 0x%lx, end=%lx\n",
 707                                load, relocated_addr,
 708                                relocated_addr + image_size);
 709                         memmove((void *)relocated_addr, load_buf, image_size);
 710                 }
 711
 712                 images->ep = relocated_addr;
 713                 images->os.start = relocated_addr;
 714                 images->os.end = relocated_addr + image_size;
 715         }
 716
 717         lmb_reserve(&images->lmb, images->os.load, (load_end -
 718                                                     images->os.load));
 719         return 0;
 720 }
 721
 722 /**
 723  * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot
 724  *
 725  * Return: interrupt flag (0 if interrupts were disabled, non-zero if they were
 726  *      enabled)
 727  */
 728 ulong bootm_disable_interrupts(void)
 729 {
 730         ulong iflag;
 731
 732         /*
 733          * We have reached the point of no return: we are going to
 734          * overwrite all exception vector code, so we cannot easily
 735          * recover from any failures any more...
 736          */
 737         iflag = disable_interrupts();
 738 #ifdef CONFIG_NETCONSOLE
 739         /* Stop the ethernet stack if NetConsole could have left it up */
 740         eth_halt();
 741 #endif
 742
 743 #if defined(CONFIG_CMD_USB)
 744         /*
 745          * turn off USB to prevent the host controller from writing to the
 746          * SDRAM while Linux is booting. This could happen (at least for OHCI
 747          * controller), because the HCCA (Host Controller Communication Area)
 748          * lies within the SDRAM and the host controller writes continously to
 749          * this area (as busmaster!). The HccaFrameNumber is for example
 750          * updated every 1 ms within the HCCA structure in SDRAM! For more
 751          * details see the OpenHCI specification.
 752          */
 753         usb_stop();
 754 #endif
 755         return iflag;
 756 }
 757
 758 #define CONSOLE_ARG             "console="
 759 #define NULL_CONSOLE            (CONSOLE_ARG "ttynull")
 760 #define CONSOLE_ARG_SIZE        sizeof(NULL_CONSOLE)
 761
 762 /**
 763  * fixup_silent_linux() - Handle silencing the linux boot if required
 764  *
 765  * This uses the silent_linux envvar to control whether to add/set a "console="
 766  * parameter to the command line
 767  *
 768  * @buf: Buffer containing the string to process
 769  * @maxlen: Maximum length of buffer
 770  * Return: 0 if OK, -ENOSPC if @maxlen is too small
 771  */
 772 static int fixup_silent_linux(char *buf, int maxlen)
 773 {
 774         int want_silent;
 775         char *cmdline;
 776         int size;
 777
 778         /*
 779          * Move the input string to the end of buffer. The output string will be
 780          * built up at the start.
 781          */
 782         size = strlen(buf) + 1;
 783         if (size * 2 > maxlen)
 784                 return -ENOSPC;
 785         cmdline = buf + maxlen - size;
 786         memmove(cmdline, buf, size);
 787         /*
 788          * Only fix cmdline when requested. The environment variable can be:
 789          *
 790          *      no - we never fixup
 791          *      yes - we always fixup
 792          *      unset - we rely on the console silent flag
 793          */
 794         want_silent = env_get_yesno("silent_linux");
 795         if (want_silent == 0)
 796                 return 0;
 797         else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT))
 798                 return 0;
 799
 800         debug("before silent fix-up: %s\n", cmdline);
 801         if (*cmdline) {
 802                 char *start = strstr(cmdline, CONSOLE_ARG);
 803
 804                 /* Check space for maximum possible new command line */
 805                 if (size + CONSOLE_ARG_SIZE > maxlen)
 806                         return -ENOSPC;
 807
 808                 if (start) {
 809                         char *end = strchr(start, ' ');
 810                         int start_bytes;
 811
 812                         start_bytes = start - cmdline;
 813                         strncpy(buf, cmdline, start_bytes);
 814                         strncpy(buf + start_bytes, NULL_CONSOLE, CONSOLE_ARG_SIZE);
 815                         if (end)
 816                                 strcpy(buf + start_bytes + CONSOLE_ARG_SIZE - 1, end);
 817                         else
 818                                 buf[start_bytes + CONSOLE_ARG_SIZE] = '\0';
 819                 } else {
 820                         sprintf(buf, "%s %s", cmdline, NULL_CONSOLE);
 821                 }
 822                 if (buf + strlen(buf) >= cmdline)
 823                         return -ENOSPC;
 824         } else {
 825                 if (maxlen < CONSOLE_ARG_SIZE)
 826                         return -ENOSPC;
 827                 strcpy(buf, NULL_CONSOLE);
 828         }
 829         debug("after silent fix-up: %s\n", buf);
 830
 831         return 0;
 832 }
 833
 834 /**
 835  * process_subst() - Handle substitution of ${...} fields in the environment
 836  *
 837  * Handle variable substitution in the provided buffer
 838  *
 839  * @buf: Buffer containing the string to process
 840  * @maxlen: Maximum length of buffer
 841  * Return: 0 if OK, -ENOSPC if @maxlen is too small
 842  */
 843 static int process_subst(char *buf, int maxlen)
 844 {
 845         char *cmdline;
 846         int size;
 847         int ret;
 848
 849         /* Move to end of buffer */
 850         size = strlen(buf) + 1;
 851         cmdline = buf + maxlen - size;
 852         if (buf + size > cmdline)
 853                 return -ENOSPC;
 854         memmove(cmdline, buf, size);
 855
 856         ret = cli_simple_process_macros(cmdline, buf, cmdline - buf);
 857
 858         return ret;
 859 }
 860
 861 int bootm_process_cmdline(char *buf, int maxlen, int flags)
 862 {
 863         int ret;
 864
 865         /* Check config first to enable compiler to eliminate code */
 866         if (IS_ENABLED(CONFIG_SILENT_CONSOLE) &&
 867             !IS_ENABLED(CONFIG_SILENT_U_BOOT_ONLY) &&
 868             (flags & BOOTM_CL_SILENT)) {
 869                 ret = fixup_silent_linux(buf, maxlen);
 870                 if (ret)
 871                         return log_msg_ret("silent", ret);
 872         }
 873         if (IS_ENABLED(CONFIG_BOOTARGS_SUBST) && IS_ENABLED(CONFIG_CMDLINE) &&
 874             (flags & BOOTM_CL_SUBST)) {
 875                 ret = process_subst(buf, maxlen);
 876                 if (ret)
 877                         return log_msg_ret("subst", ret);
 878         }
 879
 880         return 0;
 881 }
 882
 883 int bootm_process_cmdline_env(int flags)
 884 {
 885         const int maxlen = MAX_CMDLINE_SIZE;
 886         bool do_silent;
 887         const char *env;
 888         char *buf;
 889         int ret;
 890
 891         /* First check if any action is needed */
 892         do_silent = IS_ENABLED(CONFIG_SILENT_CONSOLE) &&
 893             !IS_ENABLED(CONFIG_SILENT_U_BOOT_ONLY) && (flags & BOOTM_CL_SILENT);
 894         if (!do_silent && !IS_ENABLED(CONFIG_BOOTARGS_SUBST))
 895                 return 0;
 896
 897         env = env_get("bootargs");
 898         if (env && strlen(env) >= maxlen)
 899                 return -E2BIG;
 900         buf = malloc(maxlen);
 901         if (!buf)
 902                 return -ENOMEM;
 903         if (env)
 904                 strcpy(buf, env);
 905         else
 906                 *buf = '\0';
 907         ret = bootm_process_cmdline(buf, maxlen, flags);
 908         if (!ret) {
 909                 ret = env_set("bootargs", buf);
 910
 911                 /*
 912                  * If buf is "" and bootargs does not exist, this will produce
 913                  * an error trying to delete bootargs. Ignore it
 914                  */
 915                 if (ret == -ENOENT)
 916                         ret = 0;
 917         }
 918         free(buf);
 919         if (ret)
 920                 return log_msg_ret("env", ret);
 921
 922         return 0;
 923 }
 924
 925 int bootm_measure(struct bootm_headers *images)
 926 {
 927         int ret = 0;
 928
 929         /* Skip measurement if EFI is going to do it */
 930         if (images->os.os == IH_OS_EFI &&
 931             IS_ENABLED(CONFIG_EFI_TCG2_PROTOCOL) &&
 932             IS_ENABLED(CONFIG_BOOTM_EFI))
 933                 return ret;
 934
 935         if (IS_ENABLED(CONFIG_MEASURED_BOOT)) {
 936                 struct tcg2_event_log elog;
 937                 struct udevice *dev;
 938                 void *initrd_buf;
 939                 void *image_buf;
 940                 const char *s;
 941                 u32 rd_len;
 942                 bool ign;
 943
 944                 elog.log_size = 0;
 945                 ign = IS_ENABLED(CONFIG_MEASURE_IGNORE_LOG);
 946                 ret = tcg2_measurement_init(&dev, &elog, ign);
 947                 if (ret)
 948                         return ret;
 949
 950                 image_buf = map_sysmem(images->os.image_start,
 951                                        images->os.image_len);
 952                 ret = tcg2_measure_data(dev, &elog, 8, images->os.image_len,
 953                                         image_buf, EV_COMPACT_HASH,
 954                                         strlen("linux") + 1, (u8 *)"linux");
 955                 if (ret)
 956                         goto unmap_image;
 957
 958                 rd_len = images->rd_end - images->rd_start;
 959                 initrd_buf = map_sysmem(images->rd_start, rd_len);
 960                 ret = tcg2_measure_data(dev, &elog, 9, rd_len, initrd_buf,
 961                                         EV_COMPACT_HASH, strlen("initrd") + 1,
 962                                         (u8 *)"initrd");
 963                 if (ret)
 964                         goto unmap_initrd;
 965
 966                 if (IS_ENABLED(CONFIG_MEASURE_DEVICETREE)) {
 967                         ret = tcg2_measure_data(dev, &elog, 0, images->ft_len,
 968                                                 (u8 *)images->ft_addr,
 969                                                 EV_TABLE_OF_DEVICES,
 970                                                 strlen("dts") + 1,
 971                                                 (u8 *)"dts");
 972                         if (ret)
 973                                 goto unmap_initrd;
 974                 }
 975
 976                 s = env_get("bootargs");
 977                 if (!s)
 978                         s = "";
 979                 ret = tcg2_measure_data(dev, &elog, 1, strlen(s) + 1, (u8 *)s,
 980                                         EV_PLATFORM_CONFIG_FLAGS,
 981                                         strlen(s) + 1, (u8 *)s);
 982
 983 unmap_initrd:
 984                 unmap_sysmem(initrd_buf);
 985
 986 unmap_image:
 987                 unmap_sysmem(image_buf);
 988                 tcg2_measurement_term(dev, &elog, ret != 0);
 989         }
 990
 991         return ret;
 992 }
 993
 994 int bootm_run_states(struct bootm_info *bmi, int states)
 995 {
 996         struct bootm_headers *images = bmi->images;
 997         boot_os_fn *boot_fn;
 998         ulong iflag = 0;
 999         int ret = 0, need_boot_fn;
1000
1001         images->state |= states;
1002
1003         /*
1004          * Work through the states and see how far we get. We stop on
1005          * any error.
1006          */
1007         if (states & BOOTM_STATE_START)
1008                 ret = bootm_start();
1009
1010         if (!ret && (states & BOOTM_STATE_PRE_LOAD))
1011                 ret = bootm_pre_load(bmi->addr_img);
1012
1013         if (!ret && (states & BOOTM_STATE_FINDOS))
1014                 ret = bootm_find_os(bmi->cmd_name, bmi->addr_img);
1015
1016         if (!ret && (states & BOOTM_STATE_FINDOTHER)) {
1017                 ulong img_addr;
1018
1019                 img_addr = bmi->addr_img ? hextoul(bmi->addr_img, NULL)
1020                         : image_load_addr;
1021                 ret = bootm_find_other(img_addr, bmi->conf_ramdisk,
1022                                        bmi->conf_fdt);
1023         }
1024
1025         if (IS_ENABLED(CONFIG_MEASURED_BOOT) && !ret &&
1026             (states & BOOTM_STATE_MEASURE))
1027                 bootm_measure(images);
1028
1029         /* Load the OS */
1030         if (!ret && (states & BOOTM_STATE_LOADOS)) {
1031                 iflag = bootm_disable_interrupts();
1032                 ret = bootm_load_os(images, 0);
1033                 if (ret && ret != BOOTM_ERR_OVERLAP)
1034                         goto err;
1035                 else if (ret == BOOTM_ERR_OVERLAP)
1036                         ret = 0;
1037         }
1038
1039         /* Relocate the ramdisk */
1040 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
1041         if (!ret && (states & BOOTM_STATE_RAMDISK)) {
1042                 ulong rd_len = images->rd_end - images->rd_start;
1043
1044                 ret = boot_ramdisk_high(&images->lmb, images->rd_start,
1045                         rd_len, &images->initrd_start, &images->initrd_end);
1046                 if (!ret) {
1047                         env_set_hex("initrd_start", images->initrd_start);
1048                         env_set_hex("initrd_end", images->initrd_end);
1049                 }
1050         }
1051 #endif
1052 #if CONFIG_IS_ENABLED(OF_LIBFDT) && defined(CONFIG_LMB)
1053         if (!ret && (states & BOOTM_STATE_FDT)) {
1054                 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr);
1055                 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr,
1056                                         &images->ft_len);
1057         }
1058 #endif
1059
1060         /* From now on, we need the OS boot function */
1061         if (ret)
1062                 return ret;
1063         boot_fn = bootm_os_get_boot_func(images->os.os);
1064         need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE |
1065                         BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP |
1066                         BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO);
1067         if (boot_fn == NULL && need_boot_fn) {
1068                 if (iflag)
1069                         enable_interrupts();
1070                 printf("ERROR: booting os '%s' (%d) is not supported\n",
1071                        genimg_get_os_name(images->os.os), images->os.os);
1072                 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
1073                 return 1;
1074         }
1075
1076         /* Call various other states that are not generally used */
1077         if (!ret && (states & BOOTM_STATE_OS_CMDLINE))
1078                 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, bmi);
1079         if (!ret && (states & BOOTM_STATE_OS_BD_T))
1080                 ret = boot_fn(BOOTM_STATE_OS_BD_T, bmi);
1081         if (!ret && (states & BOOTM_STATE_OS_PREP)) {
1082                 int flags = 0;
1083                 /* For Linux OS do all substitutions at console processing */
1084                 if (images->os.os == IH_OS_LINUX)
1085                         flags = BOOTM_CL_ALL;
1086                 ret = bootm_process_cmdline_env(flags);
1087                 if (ret) {
1088                         printf("Cmdline setup failed (err=%d)\n", ret);
1089                         ret = CMD_RET_FAILURE;
1090                         goto err;
1091                 }
1092                 ret = boot_fn(BOOTM_STATE_OS_PREP, bmi);
1093         }
1094
1095 #ifdef CONFIG_TRACE
1096         /* Pretend to run the OS, then run a user command */
1097         if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) {
1098                 char *cmd_list = env_get("fakegocmd");
1099
1100                 ret = boot_selected_os(BOOTM_STATE_OS_FAKE_GO, bmi, boot_fn);
1101                 if (!ret && cmd_list)
1102                         ret = run_command_list(cmd_list, -1, 0);
1103         }
1104 #endif
1105
1106         /* Check for unsupported subcommand. */
1107         if (ret) {
1108                 printf("subcommand failed (err=%d)\n", ret);
1109                 return ret;
1110         }
1111
1112         /* Now run the OS! We hope this doesn't return */
1113         if (!ret && (states & BOOTM_STATE_OS_GO))
1114                 ret = boot_selected_os(BOOTM_STATE_OS_GO, bmi, boot_fn);
1115
1116         /* Deal with any fallout */
1117 err:
1118         if (iflag)
1119                 enable_interrupts();
1120
1121         if (ret == BOOTM_ERR_UNIMPLEMENTED) {
1122                 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
1123         } else if (ret == BOOTM_ERR_RESET) {
1124                 printf("Resetting the board...\n");
1125                 reset_cpu();
1126         }
1127
1128         return ret;
1129 }
1130
1131 int boot_run(struct bootm_info *bmi, const char *cmd, int extra_states)
1132 {
1133         int states;
1134
1135         bmi->cmd_name = cmd;
1136         states = BOOTM_STATE_MEASURE | BOOTM_STATE_OS_PREP |
1137                 BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO;
1138         if (IS_ENABLED(CONFIG_SYS_BOOT_RAMDISK_HIGH))
1139                 states |= BOOTM_STATE_RAMDISK;
1140         states |= extra_states;
1141
1142         return bootm_run_states(bmi, states);
1143 }
1144
1145 int bootm_run(struct bootm_info *bmi)
1146 {
1147         return boot_run(bmi, "bootm", BOOTM_STATE_START | BOOTM_STATE_FINDOS |
1148                         BOOTM_STATE_PRE_LOAD | BOOTM_STATE_FINDOTHER |
1149                         BOOTM_STATE_LOADOS);
1150 }
1151
1152 int bootz_run(struct bootm_info *bmi)
1153 {
1154         return boot_run(bmi, "bootz", 0);
1155 }
1156
1157 int booti_run(struct bootm_info *bmi)
1158 {
1159         return boot_run(bmi, "booti", 0);
1160 }
1161
1162 int bootm_boot_start(ulong addr, const char *cmdline)
1163 {
1164         char addr_str[30];
1165         struct bootm_info bmi;
1166         int states;
1167         int ret;
1168
1169         states = BOOTM_STATE_START | BOOTM_STATE_FINDOS | BOOTM_STATE_PRE_LOAD |
1170                 BOOTM_STATE_FINDOTHER | BOOTM_STATE_LOADOS |
1171                 BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
1172                 BOOTM_STATE_OS_GO;
1173         if (IS_ENABLED(CONFIG_SYS_BOOT_RAMDISK_HIGH))
1174                 states |= BOOTM_STATE_RAMDISK;
1175         if (IS_ENABLED(CONFIG_PPC) || IS_ENABLED(CONFIG_MIPS))
1176                 states |= BOOTM_STATE_OS_CMDLINE;
1177         images.state |= states;
1178
1179         snprintf(addr_str, sizeof(addr_str), "%lx", addr);
1180
1181         ret = env_set("bootargs", cmdline);
1182         if (ret) {
1183                 printf("Failed to set cmdline\n");
1184                 return ret;
1185         }
1186         bootm_init(&bmi);
1187         bmi.addr_img = addr_str;
1188         bmi.cmd_name = "bootm";
1189         ret = bootm_run_states(&bmi, states);
1190
1191         return ret;
1192 }
1193
1194 void bootm_init(struct bootm_info *bmi)
1195 {
1196         memset(bmi, '\0', sizeof(struct bootm_info));
1197         bmi->boot_progress = true;
1198         if (IS_ENABLED(CONFIG_CMD_BOOTM))
1199                 bmi->images = &images;
1200 }
1201
1202 /**
1203  * switch_to_non_secure_mode() - switch to non-secure mode
1204  *
1205  * This routine is overridden by architectures requiring this feature.
1206  */
1207 void __weak switch_to_non_secure_mode(void)
1208 {
1209 }
1210
1211 #else /* USE_HOSTCC */
1212
1213 #if defined(CONFIG_FIT_SIGNATURE)
1214 static int bootm_host_load_image(const void *fit, int req_image_type,
1215                                  int cfg_noffset)
1216 {
1217         const char *fit_uname_config = NULL;
1218         ulong data, len;
1219         struct bootm_headers images;
1220         int noffset;
1221         ulong load_end, buf_size;
1222         uint8_t image_type;
1223         uint8_t image_comp;
1224         void *load_buf;
1225         int ret;
1226
1227         fit_uname_config = fdt_get_name(fit, cfg_noffset, NULL);
1228         memset(&images, '\0', sizeof(images));
1229         images.verify = 1;
1230         noffset = fit_image_load(&images, (ulong)fit,
1231                 NULL, &fit_uname_config,
1232                 IH_ARCH_DEFAULT, req_image_type, -1,
1233                 FIT_LOAD_IGNORED, &data, &len);
1234         if (noffset < 0)
1235                 return noffset;
1236         if (fit_image_get_type(fit, noffset, &image_type)) {
1237                 puts("Can't get image type!\n");
1238                 return -EINVAL;
1239         }
1240
1241         if (fit_image_get_comp(fit, noffset, &image_comp))
1242                 image_comp = IH_COMP_NONE;
1243
1244         /* Allow the image to expand by a factor of 4, should be safe */
1245         buf_size = (1 << 20) + len * 4;
1246         load_buf = malloc(buf_size);
1247         ret = image_decomp(image_comp, 0, data, image_type, load_buf,
1248                            (void *)data, len, buf_size, &load_end);
1249         free(load_buf);
1250
1251         if (ret) {
1252                 ret = handle_decomp_error(image_comp, load_end - 0, buf_size, ret);
1253                 if (ret != BOOTM_ERR_UNIMPLEMENTED)
1254                         return ret;
1255         }
1256
1257         return 0;
1258 }
1259
1260 int bootm_host_load_images(const void *fit, int cfg_noffset)
1261 {
1262         static uint8_t image_types[] = {
1263                 IH_TYPE_KERNEL,
1264                 IH_TYPE_FLATDT,
1265                 IH_TYPE_RAMDISK,
1266         };
1267         int err = 0;
1268         int i;
1269
1270         for (i = 0; i < ARRAY_SIZE(image_types); i++) {
1271                 int ret;
1272
1273                 ret = bootm_host_load_image(fit, image_types[i], cfg_noffset);
1274                 if (!err && ret && ret != -ENOENT)
1275                         err = ret;
1276         }
1277
1278         /* Return the first error we found */
1279         return err;
1280 }
1281 #endif
1282
1283 #endif /* ndef USE_HOSTCC */