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 <bootm.h>
   9 #include <bootstage.h>
  10 #include <cli.h>
  11 #include <command.h>
  12 #include <cpu_func.h>
  13 #include <env.h>
  14 #include <errno.h>
  15 #include <fdt_support.h>
  16 #include <irq_func.h>
  17 #include <lmb.h>
  18 #include <log.h>
  19 #include <malloc.h>
  20 #include <mapmem.h>
  21 #include <net.h>
  22 #include <asm/cache.h>
  23 #include <asm/global_data.h>
  24 #include <asm/io.h>
  25 #include <linux/sizes.h>
  26 #include <tpm-v2.h>
  27 #include <tpm_tcg2.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(void)
 244 {
 245         phys_addr_t     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(mem_start, mem_size, NULL);
 252 }
 253 #else
 254 #define lmb_reserve(base, size)
 255 static inline void boot_start_lmb(void) { }
 256 #endif
 257
 258 static int bootm_start(void)
 259 {
 260         memset((void *)&images, 0, sizeof(images));
 261         images.verify = env_get_yesno("verify");
 262
 263         boot_start_lmb();
 264
 265         bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
 266         images.state = BOOTM_STATE_START;
 267
 268         return 0;
 269 }
 270
 271 static ulong bootm_data_addr(const char *addr_str)
 272 {
 273         ulong addr;
 274
 275         if (addr_str)
 276                 addr = hextoul(addr_str, NULL);
 277         else
 278                 addr = image_load_addr;
 279
 280         return addr;
 281 }
 282
 283 /**
 284  * bootm_pre_load() - Handle the pre-load processing
 285  *
 286  * This can be used to do a full signature check of the image, for example.
 287  * It calls image_pre_load() with the data address of the image to check.
 288  *
 289  * @addr_str: String containing load address in hex, or NULL to use
 290  * image_load_addr
 291  * Return: 0 if OK, CMD_RET_FAILURE on failure
 292  */
 293 static int bootm_pre_load(const char *addr_str)
 294 {
 295         ulong data_addr = bootm_data_addr(addr_str);
 296         int ret = 0;
 297
 298         if (IS_ENABLED(CONFIG_CMD_BOOTM_PRE_LOAD))
 299                 ret = image_pre_load(data_addr);
 300
 301         if (ret)
 302                 ret = CMD_RET_FAILURE;
 303
 304         return ret;
 305 }
 306
 307 /**
 308  * bootm_find_os(): Find the OS to boot
 309  *
 310  * @cmd_name: Command name that started this boot, e.g. "bootm"
 311  * @addr_fit: Address and/or FIT specifier (first arg of bootm command)
 312  * Return: 0 on success, -ve on error
 313  */
 314 static int bootm_find_os(const char *cmd_name, const char *addr_fit)
 315 {
 316         const void *os_hdr;
 317 #ifdef CONFIG_ANDROID_BOOT_IMAGE
 318         const void *vendor_boot_img;
 319         const void *boot_img;
 320 #endif
 321         bool ep_found = false;
 322         int ret;
 323
 324         /* get kernel image header, start address and length */
 325         ret = boot_get_kernel(addr_fit, &images, &images.os.image_start,
 326                               &images.os.image_len, &os_hdr);
 327         if (ret) {
 328                 if (ret == -EPROTOTYPE)
 329                         printf("Wrong Image Type for %s command\n", cmd_name);
 330
 331                 printf("ERROR %dE: can't get kernel image!\n", ret);
 332                 return 1;
 333         }
 334
 335         /* get image parameters */
 336         switch (genimg_get_format(os_hdr)) {
 337 #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
 338         case IMAGE_FORMAT_LEGACY:
 339                 images.os.type = image_get_type(os_hdr);
 340                 images.os.comp = image_get_comp(os_hdr);
 341                 images.os.os = image_get_os(os_hdr);
 342
 343                 images.os.end = image_get_image_end(os_hdr);
 344                 images.os.load = image_get_load(os_hdr);
 345                 images.os.arch = image_get_arch(os_hdr);
 346                 break;
 347 #endif
 348 #if CONFIG_IS_ENABLED(FIT)
 349         case IMAGE_FORMAT_FIT:
 350                 if (fit_image_get_type(images.fit_hdr_os,
 351                                        images.fit_noffset_os,
 352                                        &images.os.type)) {
 353                         puts("Can't get image type!\n");
 354                         bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
 355                         return 1;
 356                 }
 357
 358                 if (fit_image_get_comp(images.fit_hdr_os,
 359                                        images.fit_noffset_os,
 360                                        &images.os.comp)) {
 361                         puts("Can't get image compression!\n");
 362                         bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
 363                         return 1;
 364                 }
 365
 366                 if (fit_image_get_os(images.fit_hdr_os, images.fit_noffset_os,
 367                                      &images.os.os)) {
 368                         puts("Can't get image OS!\n");
 369                         bootstage_error(BOOTSTAGE_ID_FIT_OS);
 370                         return 1;
 371                 }
 372
 373                 if (fit_image_get_arch(images.fit_hdr_os,
 374                                        images.fit_noffset_os,
 375                                        &images.os.arch)) {
 376                         puts("Can't get image ARCH!\n");
 377                         return 1;
 378                 }
 379
 380                 images.os.end = fit_get_end(images.fit_hdr_os);
 381
 382                 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
 383                                        &images.os.load)) {
 384                         puts("Can't get image load address!\n");
 385                         bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
 386                         return 1;
 387                 }
 388                 break;
 389 #endif
 390 #ifdef CONFIG_ANDROID_BOOT_IMAGE
 391         case IMAGE_FORMAT_ANDROID:
 392                 boot_img = os_hdr;
 393                 vendor_boot_img = NULL;
 394                 if (IS_ENABLED(CONFIG_CMD_ABOOTIMG)) {
 395                         boot_img = map_sysmem(get_abootimg_addr(), 0);
 396                         vendor_boot_img = map_sysmem(get_avendor_bootimg_addr(), 0);
 397                 }
 398                 images.os.type = IH_TYPE_KERNEL;
 399                 images.os.comp = android_image_get_kcomp(boot_img, vendor_boot_img);
 400                 images.os.os = IH_OS_LINUX;
 401                 images.os.end = android_image_get_end(boot_img, vendor_boot_img);
 402                 images.os.load = android_image_get_kload(boot_img, vendor_boot_img);
 403                 images.ep = images.os.load;
 404                 ep_found = true;
 405                 if (IS_ENABLED(CONFIG_CMD_ABOOTIMG)) {
 406                         unmap_sysmem(vendor_boot_img);
 407                         unmap_sysmem(boot_img);
 408                 }
 409                 break;
 410 #endif
 411         default:
 412                 puts("ERROR: unknown image format type!\n");
 413                 return 1;
 414         }
 415
 416         /* If we have a valid setup.bin, we will use that for entry (x86) */
 417         if (images.os.arch == IH_ARCH_I386 ||
 418             images.os.arch == IH_ARCH_X86_64) {
 419                 ulong len;
 420
 421                 ret = boot_get_setup(&images, IH_ARCH_I386, &images.ep, &len);
 422                 if (ret < 0 && ret != -ENOENT) {
 423                         puts("Could not find a valid setup.bin for x86\n");
 424                         return 1;
 425                 }
 426                 /* Kernel entry point is the setup.bin */
 427         } else if (images.legacy_hdr_valid) {
 428                 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
 429 #if CONFIG_IS_ENABLED(FIT)
 430         } else if (images.fit_uname_os) {
 431                 int ret;
 432
 433                 ret = fit_image_get_entry(images.fit_hdr_os,
 434                                           images.fit_noffset_os, &images.ep);
 435                 if (ret) {
 436                         puts("Can't get entry point property!\n");
 437                         return 1;
 438                 }
 439 #endif
 440         } else if (!ep_found) {
 441                 puts("Could not find kernel entry point!\n");
 442                 return 1;
 443         }
 444
 445         if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
 446                 images.os.load = images.os.image_start;
 447                 images.ep += images.os.image_start;
 448         }
 449
 450         images.os.start = map_to_sysmem(os_hdr);
 451
 452         return 0;
 453 }
 454
 455 /**
 456  * check_overlap() - Check if an image overlaps the OS
 457  *
 458  * @name: Name of image to check (used to print error)
 459  * @base: Base address of image
 460  * @end: End address of image (+1)
 461  * @os_start: Start of OS
 462  * @os_size: Size of OS in bytes
 463  * Return: 0 if OK, -EXDEV if the image overlaps the OS
 464  */
 465 static int check_overlap(const char *name, ulong base, ulong end,
 466                          ulong os_start, ulong os_size)
 467 {
 468         ulong os_end;
 469
 470         if (!base)
 471                 return 0;
 472         os_end = os_start + os_size;
 473
 474         if ((base >= os_start && base < os_end) ||
 475             (end > os_start && end <= os_end) ||
 476             (base < os_start && end >= os_end)) {
 477                 printf("ERROR: %s image overlaps OS image (OS=%lx..%lx)\n",
 478                        name, os_start, os_end);
 479
 480                 return -EXDEV;
 481         }
 482
 483         return 0;
 484 }
 485
 486 int bootm_find_images(ulong img_addr, const char *conf_ramdisk,
 487                       const char *conf_fdt, ulong start, ulong size)
 488 {
 489         const char *select = conf_ramdisk;
 490         char addr_str[17];
 491         void *buf;
 492         int ret;
 493
 494         if (IS_ENABLED(CONFIG_ANDROID_BOOT_IMAGE)) {
 495                 /* Look for an Android boot image */
 496                 buf = map_sysmem(images.os.start, 0);
 497                 if (buf && genimg_get_format(buf) == IMAGE_FORMAT_ANDROID) {
 498                         strcpy(addr_str, simple_xtoa(img_addr));
 499                         select = addr_str;
 500                 }
 501         }
 502
 503         if (conf_ramdisk)
 504                 select = conf_ramdisk;
 505
 506         /* find ramdisk */
 507         ret = boot_get_ramdisk(select, &images, IH_INITRD_ARCH,
 508                                &images.rd_start, &images.rd_end);
 509         if (ret) {
 510                 puts("Ramdisk image is corrupt or invalid\n");
 511                 return 1;
 512         }
 513
 514         /* check if ramdisk overlaps OS image */
 515         if (check_overlap("RD", images.rd_start, images.rd_end, start, size))
 516                 return 1;
 517
 518         if (CONFIG_IS_ENABLED(OF_LIBFDT)) {
 519                 buf = map_sysmem(img_addr, 0);
 520
 521                 /* find flattened device tree */
 522                 ret = boot_get_fdt(buf, conf_fdt, IH_ARCH_DEFAULT, &images,
 523                                    &images.ft_addr, &images.ft_len);
 524                 if (ret) {
 525                         puts("Could not find a valid device tree\n");
 526                         return 1;
 527                 }
 528
 529                 /* check if FDT overlaps OS image */
 530                 if (check_overlap("FDT", map_to_sysmem(images.ft_addr),
 531                                   images.ft_len, start, size))
 532                         return 1;
 533
 534                 if (IS_ENABLED(CONFIG_CMD_FDT))
 535                         set_working_fdt_addr(map_to_sysmem(images.ft_addr));
 536         }
 537
 538 #if CONFIG_IS_ENABLED(FIT)
 539         if (IS_ENABLED(CONFIG_FPGA)) {
 540                 /* find bitstreams */
 541                 ret = boot_get_fpga(&images);
 542                 if (ret) {
 543                         printf("FPGA image is corrupted or invalid\n");
 544                         return 1;
 545                 }
 546         }
 547
 548         /* find all of the loadables */
 549         ret = boot_get_loadable(&images);
 550         if (ret) {
 551                 printf("Loadable(s) is corrupt or invalid\n");
 552                 return 1;
 553         }
 554 #endif
 555
 556         return 0;
 557 }
 558
 559 static int bootm_find_other(ulong img_addr, const char *conf_ramdisk,
 560                             const char *conf_fdt)
 561 {
 562         if ((images.os.type == IH_TYPE_KERNEL ||
 563              images.os.type == IH_TYPE_KERNEL_NOLOAD ||
 564              images.os.type == IH_TYPE_MULTI) &&
 565             (images.os.os == IH_OS_LINUX || images.os.os == IH_OS_VXWORKS ||
 566              images.os.os == IH_OS_EFI || images.os.os == IH_OS_TEE)) {
 567                 return bootm_find_images(img_addr, conf_ramdisk, conf_fdt, 0,
 568                                          0);
 569         }
 570
 571         return 0;
 572 }
 573 #endif /* USE_HOSTC */
 574
 575 #if !defined(USE_HOSTCC) || defined(CONFIG_FIT_SIGNATURE)
 576 /**
 577  * handle_decomp_error() - display a decompression error
 578  *
 579  * This function tries to produce a useful message. In the case where the
 580  * uncompressed size is the same as the available space, we can assume that
 581  * the image is too large for the buffer.
 582  *
 583  * @comp_type:          Compression type being used (IH_COMP_...)
 584  * @uncomp_size:        Number of bytes uncompressed
 585  * @buf_size:           Number of bytes the decompresion buffer was
 586  * @ret:                errno error code received from compression library
 587  * Return: Appropriate BOOTM_ERR_ error code
 588  */
 589 static int handle_decomp_error(int comp_type, size_t uncomp_size,
 590                                size_t buf_size, int ret)
 591 {
 592         const char *name = genimg_get_comp_name(comp_type);
 593
 594         /* ENOSYS means unimplemented compression type, don't reset. */
 595         if (ret == -ENOSYS)
 596                 return BOOTM_ERR_UNIMPLEMENTED;
 597
 598         if (uncomp_size >= buf_size)
 599                 printf("Image too large: increase CONFIG_SYS_BOOTM_LEN\n");
 600         else
 601                 printf("%s: uncompress error %d\n", name, ret);
 602
 603         /*
 604          * The decompression routines are now safe, so will not write beyond
 605          * their bounds. Probably it is not necessary to reset, but maintain
 606          * the current behaviour for now.
 607          */
 608         printf("Must RESET board to recover\n");
 609 #ifndef USE_HOSTCC
 610         bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 611 #endif
 612
 613         return BOOTM_ERR_RESET;
 614 }
 615 #endif
 616
 617 #ifndef USE_HOSTCC
 618 static int bootm_load_os(struct bootm_headers *images, int boot_progress)
 619 {
 620         struct image_info os = images->os;
 621         ulong load = os.load;
 622         ulong load_end;
 623         ulong blob_start = os.start;
 624         ulong blob_end = os.end;
 625         ulong image_start = os.image_start;
 626         ulong image_len = os.image_len;
 627         ulong flush_start = ALIGN_DOWN(load, ARCH_DMA_MINALIGN);
 628         bool no_overlap;
 629         void *load_buf, *image_buf;
 630         int err;
 631
 632         /*
 633          * For a "noload" compressed kernel we need to allocate a buffer large
 634          * enough to decompress in to and use that as the load address now.
 635          * Assume that the kernel compression is at most a factor of 4 since
 636          * zstd almost achieves that.
 637          * Use an alignment of 2MB since this might help arm64
 638          */
 639         if (os.type == IH_TYPE_KERNEL_NOLOAD && os.comp != IH_COMP_NONE) {
 640                 ulong req_size = ALIGN(image_len * 4, SZ_1M);
 641
 642                 load = lmb_alloc(req_size, SZ_2M);
 643                 if (!load)
 644                         return 1;
 645                 os.load = load;
 646                 images->ep = load;
 647                 debug("Allocated %lx bytes at %lx for kernel (size %lx) decompression\n",
 648                       req_size, load, image_len);
 649         }
 650
 651         load_buf = map_sysmem(load, 0);
 652         image_buf = map_sysmem(os.image_start, image_len);
 653         err = image_decomp(os.comp, load, os.image_start, os.type,
 654                            load_buf, image_buf, image_len,
 655                            CONFIG_SYS_BOOTM_LEN, &load_end);
 656         if (err) {
 657                 err = handle_decomp_error(os.comp, load_end - load,
 658                                           CONFIG_SYS_BOOTM_LEN, err);
 659                 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
 660                 return err;
 661         }
 662         /* We need the decompressed image size in the next steps */
 663         images->os.image_len = load_end - load;
 664
 665         flush_cache(flush_start, ALIGN(load_end, ARCH_DMA_MINALIGN) - flush_start);
 666
 667         debug("   kernel loaded at 0x%08lx, end = 0x%08lx\n", load, load_end);
 668         bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
 669
 670         no_overlap = (os.comp == IH_COMP_NONE && load == image_start);
 671
 672         if (!no_overlap && load < blob_end && load_end > blob_start) {
 673                 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
 674                       blob_start, blob_end);
 675                 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
 676                       load_end);
 677
 678                 /* Check what type of image this is. */
 679                 if (images->legacy_hdr_valid) {
 680                         if (image_get_type(&images->legacy_hdr_os_copy)
 681                                         == IH_TYPE_MULTI)
 682                                 puts("WARNING: legacy format multi component image overwritten\n");
 683                         return BOOTM_ERR_OVERLAP;
 684                 } else {
 685                         puts("ERROR: new format image overwritten - must RESET the board to recover\n");
 686                         bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
 687                         return BOOTM_ERR_RESET;
 688                 }
 689         }
 690
 691         if (IS_ENABLED(CONFIG_CMD_BOOTI) && images->os.arch == IH_ARCH_ARM64 &&
 692             images->os.os == IH_OS_LINUX) {
 693                 ulong relocated_addr;
 694                 ulong image_size;
 695                 int ret;
 696
 697                 ret = booti_setup(load, &relocated_addr, &image_size, false);
 698                 if (ret) {
 699                         printf("Failed to prep arm64 kernel (err=%d)\n", ret);
 700                         return BOOTM_ERR_RESET;
 701                 }
 702
 703                 /* Handle BOOTM_STATE_LOADOS */
 704                 if (relocated_addr != load) {
 705                         printf("Moving Image from 0x%lx to 0x%lx, end=%lx\n",
 706                                load, relocated_addr,
 707                                relocated_addr + image_size);
 708                         memmove((void *)relocated_addr, load_buf, image_size);
 709                 }
 710
 711                 images->ep = relocated_addr;
 712                 images->os.start = relocated_addr;
 713                 images->os.end = relocated_addr + image_size;
 714         }
 715
 716         lmb_reserve(images->os.load, (load_end - images->os.load));
 717         return 0;
 718 }
 719
 720 /**
 721  * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot
 722  *
 723  * Return: interrupt flag (0 if interrupts were disabled, non-zero if they were
 724  *      enabled)
 725  */
 726 ulong bootm_disable_interrupts(void)
 727 {
 728         ulong iflag;
 729
 730         /*
 731          * We have reached the point of no return: we are going to
 732          * overwrite all exception vector code, so we cannot easily
 733          * recover from any failures any more...
 734          */
 735         iflag = disable_interrupts();
 736 #ifdef CONFIG_NETCONSOLE
 737         /* Stop the ethernet stack if NetConsole could have left it up */
 738         eth_halt();
 739 #endif
 740
 741         return iflag;
 742 }
 743
 744 #define CONSOLE_ARG             "console="
 745 #define NULL_CONSOLE            (CONSOLE_ARG "ttynull")
 746 #define CONSOLE_ARG_SIZE        sizeof(NULL_CONSOLE)
 747
 748 /**
 749  * fixup_silent_linux() - Handle silencing the linux boot if required
 750  *
 751  * This uses the silent_linux envvar to control whether to add/set a "console="
 752  * parameter to the command line
 753  *
 754  * @buf: Buffer containing the string to process
 755  * @maxlen: Maximum length of buffer
 756  * Return: 0 if OK, -ENOSPC if @maxlen is too small
 757  */
 758 static int fixup_silent_linux(char *buf, int maxlen)
 759 {
 760         int want_silent;
 761         char *cmdline;
 762         int size;
 763
 764         /*
 765          * Move the input string to the end of buffer. The output string will be
 766          * built up at the start.
 767          */
 768         size = strlen(buf) + 1;
 769         if (size * 2 > maxlen)
 770                 return -ENOSPC;
 771         cmdline = buf + maxlen - size;
 772         memmove(cmdline, buf, size);
 773         /*
 774          * Only fix cmdline when requested. The environment variable can be:
 775          *
 776          *      no - we never fixup
 777          *      yes - we always fixup
 778          *      unset - we rely on the console silent flag
 779          */
 780         want_silent = env_get_yesno("silent_linux");
 781         if (want_silent == 0)
 782                 return 0;
 783         else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT))
 784                 return 0;
 785
 786         debug("before silent fix-up: %s\n", cmdline);
 787         if (*cmdline) {
 788                 char *start = strstr(cmdline, CONSOLE_ARG);
 789
 790                 /* Check space for maximum possible new command line */
 791                 if (size + CONSOLE_ARG_SIZE > maxlen)
 792                         return -ENOSPC;
 793
 794                 if (start) {
 795                         char *end = strchr(start, ' ');
 796                         int start_bytes;
 797
 798                         start_bytes = start - cmdline;
 799                         strncpy(buf, cmdline, start_bytes);
 800                         strncpy(buf + start_bytes, NULL_CONSOLE, CONSOLE_ARG_SIZE);
 801                         if (end)
 802                                 strcpy(buf + start_bytes + CONSOLE_ARG_SIZE - 1, end);
 803                         else
 804                                 buf[start_bytes + CONSOLE_ARG_SIZE] = '\0';
 805                 } else {
 806                         sprintf(buf, "%s %s", cmdline, NULL_CONSOLE);
 807                 }
 808                 if (buf + strlen(buf) >= cmdline)
 809                         return -ENOSPC;
 810         } else {
 811                 if (maxlen < CONSOLE_ARG_SIZE)
 812                         return -ENOSPC;
 813                 strcpy(buf, NULL_CONSOLE);
 814         }
 815         debug("after silent fix-up: %s\n", buf);
 816
 817         return 0;
 818 }
 819
 820 /**
 821  * process_subst() - Handle substitution of ${...} fields in the environment
 822  *
 823  * Handle variable substitution in the provided buffer
 824  *
 825  * @buf: Buffer containing the string to process
 826  * @maxlen: Maximum length of buffer
 827  * Return: 0 if OK, -ENOSPC if @maxlen is too small
 828  */
 829 static int process_subst(char *buf, int maxlen)
 830 {
 831         char *cmdline;
 832         int size;
 833         int ret;
 834
 835         /* Move to end of buffer */
 836         size = strlen(buf) + 1;
 837         cmdline = buf + maxlen - size;
 838         if (buf + size > cmdline)
 839                 return -ENOSPC;
 840         memmove(cmdline, buf, size);
 841
 842         ret = cli_simple_process_macros(cmdline, buf, cmdline - buf);
 843
 844         return ret;
 845 }
 846
 847 int bootm_process_cmdline(char *buf, int maxlen, int flags)
 848 {
 849         int ret;
 850
 851         /* Check config first to enable compiler to eliminate code */
 852         if (IS_ENABLED(CONFIG_SILENT_CONSOLE) &&
 853             !IS_ENABLED(CONFIG_SILENT_U_BOOT_ONLY) &&
 854             (flags & BOOTM_CL_SILENT)) {
 855                 ret = fixup_silent_linux(buf, maxlen);
 856                 if (ret)
 857                         return log_msg_ret("silent", ret);
 858         }
 859         if (IS_ENABLED(CONFIG_BOOTARGS_SUBST) && IS_ENABLED(CONFIG_CMDLINE) &&
 860             (flags & BOOTM_CL_SUBST)) {
 861                 ret = process_subst(buf, maxlen);
 862                 if (ret)
 863                         return log_msg_ret("subst", ret);
 864         }
 865
 866         return 0;
 867 }
 868
 869 int bootm_process_cmdline_env(int flags)
 870 {
 871         const int maxlen = MAX_CMDLINE_SIZE;
 872         bool do_silent;
 873         const char *env;
 874         char *buf;
 875         int ret;
 876
 877         /* First check if any action is needed */
 878         do_silent = IS_ENABLED(CONFIG_SILENT_CONSOLE) &&
 879             !IS_ENABLED(CONFIG_SILENT_U_BOOT_ONLY) && (flags & BOOTM_CL_SILENT);
 880         if (!do_silent && !IS_ENABLED(CONFIG_BOOTARGS_SUBST))
 881                 return 0;
 882
 883         env = env_get("bootargs");
 884         if (env && strlen(env) >= maxlen)
 885                 return -E2BIG;
 886         buf = malloc(maxlen);
 887         if (!buf)
 888                 return -ENOMEM;
 889         if (env)
 890                 strcpy(buf, env);
 891         else
 892                 *buf = '\0';
 893         ret = bootm_process_cmdline(buf, maxlen, flags);
 894         if (!ret) {
 895                 ret = env_set("bootargs", buf);
 896
 897                 /*
 898                  * If buf is "" and bootargs does not exist, this will produce
 899                  * an error trying to delete bootargs. Ignore it
 900                  */
 901                 if (ret == -ENOENT)
 902                         ret = 0;
 903         }
 904         free(buf);
 905         if (ret)
 906                 return log_msg_ret("env", ret);
 907
 908         return 0;
 909 }
 910
 911 int bootm_measure(struct bootm_headers *images)
 912 {
 913         int ret = 0;
 914
 915         /* Skip measurement if EFI is going to do it */
 916         if (images->os.os == IH_OS_EFI &&
 917             IS_ENABLED(CONFIG_EFI_TCG2_PROTOCOL) &&
 918             IS_ENABLED(CONFIG_BOOTM_EFI))
 919                 return ret;
 920
 921         if (IS_ENABLED(CONFIG_MEASURED_BOOT)) {
 922                 struct tcg2_event_log elog;
 923                 struct udevice *dev;
 924                 void *initrd_buf;
 925                 void *image_buf;
 926                 const char *s;
 927                 u32 rd_len;
 928                 bool ign;
 929
 930                 elog.log_size = 0;
 931                 ign = IS_ENABLED(CONFIG_MEASURE_IGNORE_LOG);
 932                 ret = tcg2_measurement_init(&dev, &elog, ign);
 933                 if (ret)
 934                         return ret;
 935
 936                 image_buf = map_sysmem(images->os.image_start,
 937                                        images->os.image_len);
 938                 ret = tcg2_measure_data(dev, &elog, 8, images->os.image_len,
 939                                         image_buf, EV_COMPACT_HASH,
 940                                         strlen("linux") + 1, (u8 *)"linux");
 941                 if (ret)
 942                         goto unmap_image;
 943
 944                 rd_len = images->rd_end - images->rd_start;
 945                 initrd_buf = map_sysmem(images->rd_start, rd_len);
 946                 ret = tcg2_measure_data(dev, &elog, 9, rd_len, initrd_buf,
 947                                         EV_COMPACT_HASH, strlen("initrd") + 1,
 948                                         (u8 *)"initrd");
 949                 if (ret)
 950                         goto unmap_initrd;
 951
 952                 if (IS_ENABLED(CONFIG_MEASURE_DEVICETREE)) {
 953                         ret = tcg2_measure_data(dev, &elog, 1, images->ft_len,
 954                                                 (u8 *)images->ft_addr,
 955                                                 EV_TABLE_OF_DEVICES,
 956                                                 strlen("dts") + 1,
 957                                                 (u8 *)"dts");
 958                         if (ret)
 959                                 goto unmap_initrd;
 960                 }
 961
 962                 s = env_get("bootargs");
 963                 if (!s)
 964                         s = "";
 965                 ret = tcg2_measure_data(dev, &elog, 1, strlen(s) + 1, (u8 *)s,
 966                                         EV_PLATFORM_CONFIG_FLAGS,
 967                                         strlen(s) + 1, (u8 *)s);
 968
 969 unmap_initrd:
 970                 unmap_sysmem(initrd_buf);
 971
 972 unmap_image:
 973                 unmap_sysmem(image_buf);
 974                 tcg2_measurement_term(dev, &elog, ret != 0);
 975         }
 976
 977         return ret;
 978 }
 979
 980 int bootm_run_states(struct bootm_info *bmi, int states)
 981 {
 982         struct bootm_headers *images = bmi->images;
 983         boot_os_fn *boot_fn;
 984         ulong iflag = 0;
 985         int ret = 0, need_boot_fn;
 986
 987         images->state |= states;
 988
 989         /*
 990          * Work through the states and see how far we get. We stop on
 991          * any error.
 992          */
 993         if (states & BOOTM_STATE_START)
 994                 ret = bootm_start();
 995
 996         if (!ret && (states & BOOTM_STATE_PRE_LOAD))
 997                 ret = bootm_pre_load(bmi->addr_img);
 998
 999         if (!ret && (states & BOOTM_STATE_FINDOS))
1000                 ret = bootm_find_os(bmi->cmd_name, bmi->addr_img);
1001
1002         if (!ret && (states & BOOTM_STATE_FINDOTHER)) {
1003                 ulong img_addr;
1004
1005                 img_addr = bmi->addr_img ? hextoul(bmi->addr_img, NULL)
1006                         : image_load_addr;
1007                 ret = bootm_find_other(img_addr, bmi->conf_ramdisk,
1008                                        bmi->conf_fdt);
1009         }
1010
1011         if (IS_ENABLED(CONFIG_MEASURED_BOOT) && !ret &&
1012             (states & BOOTM_STATE_MEASURE))
1013                 bootm_measure(images);
1014
1015         /* Load the OS */
1016         if (!ret && (states & BOOTM_STATE_LOADOS)) {
1017                 iflag = bootm_disable_interrupts();
1018                 ret = bootm_load_os(images, 0);
1019                 if (ret && ret != BOOTM_ERR_OVERLAP)
1020                         goto err;
1021                 else if (ret == BOOTM_ERR_OVERLAP)
1022                         ret = 0;
1023         }
1024
1025         /* Relocate the ramdisk */
1026 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
1027         if (!ret && (states & BOOTM_STATE_RAMDISK)) {
1028                 ulong rd_len = images->rd_end - images->rd_start;
1029
1030                 ret = boot_ramdisk_high(images->rd_start, rd_len,
1031                                         &images->initrd_start,
1032                                         &images->initrd_end);
1033                 if (!ret) {
1034                         env_set_hex("initrd_start", images->initrd_start);
1035                         env_set_hex("initrd_end", images->initrd_end);
1036                 }
1037         }
1038 #endif
1039 #if CONFIG_IS_ENABLED(OF_LIBFDT) && defined(CONFIG_LMB)
1040         if (!ret && (states & BOOTM_STATE_FDT)) {
1041                 boot_fdt_add_mem_rsv_regions(images->ft_addr);
1042                 ret = boot_relocate_fdt(&images->ft_addr, &images->ft_len);
1043         }
1044 #endif
1045
1046         /* From now on, we need the OS boot function */
1047         if (ret)
1048                 return ret;
1049         boot_fn = bootm_os_get_boot_func(images->os.os);
1050         need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE |
1051                         BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP |
1052                         BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO);
1053         if (boot_fn == NULL && need_boot_fn) {
1054                 if (iflag)
1055                         enable_interrupts();
1056                 printf("ERROR: booting os '%s' (%d) is not supported\n",
1057                        genimg_get_os_name(images->os.os), images->os.os);
1058                 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
1059                 return 1;
1060         }
1061
1062         /* Call various other states that are not generally used */
1063         if (!ret && (states & BOOTM_STATE_OS_CMDLINE))
1064                 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, bmi);
1065         if (!ret && (states & BOOTM_STATE_OS_BD_T))
1066                 ret = boot_fn(BOOTM_STATE_OS_BD_T, bmi);
1067         if (!ret && (states & BOOTM_STATE_OS_PREP)) {
1068                 int flags = 0;
1069                 /* For Linux OS do all substitutions at console processing */
1070                 if (images->os.os == IH_OS_LINUX)
1071                         flags = BOOTM_CL_ALL;
1072                 ret = bootm_process_cmdline_env(flags);
1073                 if (ret) {
1074                         printf("Cmdline setup failed (err=%d)\n", ret);
1075                         ret = CMD_RET_FAILURE;
1076                         goto err;
1077                 }
1078                 ret = boot_fn(BOOTM_STATE_OS_PREP, bmi);
1079         }
1080
1081 #ifdef CONFIG_TRACE
1082         /* Pretend to run the OS, then run a user command */
1083         if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) {
1084                 char *cmd_list = env_get("fakegocmd");
1085
1086                 ret = boot_selected_os(BOOTM_STATE_OS_FAKE_GO, bmi, boot_fn);
1087                 if (!ret && cmd_list)
1088                         ret = run_command_list(cmd_list, -1, 0);
1089         }
1090 #endif
1091
1092         /* Check for unsupported subcommand. */
1093         if (ret) {
1094                 printf("subcommand failed (err=%d)\n", ret);
1095                 return ret;
1096         }
1097
1098         /* Now run the OS! We hope this doesn't return */
1099         if (!ret && (states & BOOTM_STATE_OS_GO))
1100                 ret = boot_selected_os(BOOTM_STATE_OS_GO, bmi, boot_fn);
1101
1102         /* Deal with any fallout */
1103 err:
1104         if (iflag)
1105                 enable_interrupts();
1106
1107         if (ret == BOOTM_ERR_UNIMPLEMENTED) {
1108                 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
1109         } else if (ret == BOOTM_ERR_RESET) {
1110                 printf("Resetting the board...\n");
1111                 reset_cpu();
1112         }
1113
1114         return ret;
1115 }
1116
1117 int boot_run(struct bootm_info *bmi, const char *cmd, int extra_states)
1118 {
1119         int states;
1120
1121         bmi->cmd_name = cmd;
1122         states = BOOTM_STATE_MEASURE | BOOTM_STATE_OS_PREP |
1123                 BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO;
1124         if (IS_ENABLED(CONFIG_SYS_BOOT_RAMDISK_HIGH))
1125                 states |= BOOTM_STATE_RAMDISK;
1126         states |= extra_states;
1127
1128         return bootm_run_states(bmi, states);
1129 }
1130
1131 int bootm_run(struct bootm_info *bmi)
1132 {
1133         return boot_run(bmi, "bootm", BOOTM_STATE_START | BOOTM_STATE_FINDOS |
1134                         BOOTM_STATE_PRE_LOAD | BOOTM_STATE_FINDOTHER |
1135                         BOOTM_STATE_LOADOS);
1136 }
1137
1138 int bootz_run(struct bootm_info *bmi)
1139 {
1140         return boot_run(bmi, "bootz", 0);
1141 }
1142
1143 int booti_run(struct bootm_info *bmi)
1144 {
1145         return boot_run(bmi, "booti", 0);
1146 }
1147
1148 int bootm_boot_start(ulong addr, const char *cmdline)
1149 {
1150         char addr_str[30];
1151         struct bootm_info bmi;
1152         int states;
1153         int ret;
1154
1155         states = BOOTM_STATE_START | BOOTM_STATE_FINDOS | BOOTM_STATE_PRE_LOAD |
1156                 BOOTM_STATE_FINDOTHER | BOOTM_STATE_LOADOS |
1157                 BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
1158                 BOOTM_STATE_OS_GO;
1159         if (IS_ENABLED(CONFIG_SYS_BOOT_RAMDISK_HIGH))
1160                 states |= BOOTM_STATE_RAMDISK;
1161         if (IS_ENABLED(CONFIG_PPC) || IS_ENABLED(CONFIG_MIPS))
1162                 states |= BOOTM_STATE_OS_CMDLINE;
1163         images.state |= states;
1164
1165         snprintf(addr_str, sizeof(addr_str), "%lx", addr);
1166
1167         ret = env_set("bootargs", cmdline);
1168         if (ret) {
1169                 printf("Failed to set cmdline\n");
1170                 return ret;
1171         }
1172         bootm_init(&bmi);
1173         bmi.addr_img = addr_str;
1174         bmi.cmd_name = "bootm";
1175         ret = bootm_run_states(&bmi, states);
1176
1177         return ret;
1178 }
1179
1180 void bootm_init(struct bootm_info *bmi)
1181 {
1182         memset(bmi, '\0', sizeof(struct bootm_info));
1183         bmi->boot_progress = true;
1184         if (IS_ENABLED(CONFIG_CMD_BOOTM))
1185                 bmi->images = &images;
1186 }
1187
1188 /**
1189  * switch_to_non_secure_mode() - switch to non-secure mode
1190  *
1191  * This routine is overridden by architectures requiring this feature.
1192  */
1193 void __weak switch_to_non_secure_mode(void)
1194 {
1195 }
1196
1197 #else /* USE_HOSTCC */
1198
1199 #if defined(CONFIG_FIT_SIGNATURE)
1200 static int bootm_host_load_image(const void *fit, int req_image_type,
1201                                  int cfg_noffset)
1202 {
1203         const char *fit_uname_config = NULL;
1204         ulong data, len;
1205         struct bootm_headers images;
1206         int noffset;
1207         ulong load_end, buf_size;
1208         uint8_t image_type;
1209         uint8_t image_comp;
1210         void *load_buf;
1211         int ret;
1212
1213         fit_uname_config = fdt_get_name(fit, cfg_noffset, NULL);
1214         memset(&images, '\0', sizeof(images));
1215         images.verify = 1;
1216         noffset = fit_image_load(&images, (ulong)fit,
1217                 NULL, &fit_uname_config,
1218                 IH_ARCH_DEFAULT, req_image_type, -1,
1219                 FIT_LOAD_IGNORED, &data, &len);
1220         if (noffset < 0)
1221                 return noffset;
1222         if (fit_image_get_type(fit, noffset, &image_type)) {
1223                 puts("Can't get image type!\n");
1224                 return -EINVAL;
1225         }
1226
1227         if (fit_image_get_comp(fit, noffset, &image_comp))
1228                 image_comp = IH_COMP_NONE;
1229
1230         /* Allow the image to expand by a factor of 4, should be safe */
1231         buf_size = (1 << 20) + len * 4;
1232         load_buf = malloc(buf_size);
1233         ret = image_decomp(image_comp, 0, data, image_type, load_buf,
1234                            (void *)data, len, buf_size, &load_end);
1235         free(load_buf);
1236
1237         if (ret) {
1238                 ret = handle_decomp_error(image_comp, load_end - 0, buf_size, ret);
1239                 if (ret != BOOTM_ERR_UNIMPLEMENTED)
1240                         return ret;
1241         }
1242
1243         return 0;
1244 }
1245
1246 int bootm_host_load_images(const void *fit, int cfg_noffset)
1247 {
1248         static uint8_t image_types[] = {
1249                 IH_TYPE_KERNEL,
1250                 IH_TYPE_FLATDT,
1251                 IH_TYPE_RAMDISK,
1252         };
1253         int err = 0;
1254         int i;
1255
1256         for (i = 0; i < ARRAY_SIZE(image_types); i++) {
1257                 int ret;
1258
1259                 ret = bootm_host_load_image(fit, image_types[i], cfg_noffset);
1260                 if (!err && ret && ret != -ENOENT)
1261                         err = ret;
1262         }
1263
1264         /* Return the first error we found */
1265         return err;
1266 }
1267 #endif
1268
1269 #endif /* ndef USE_HOSTCC */