// SPDX-License-Identifier: GPL-2.0+ /* * (C) Copyright 2000-2009 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. */ #ifndef USE_HOSTCC #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if defined(CONFIG_CMD_USB) #include #endif #else #include "mkimage.h" #endif #include #include #include #define MAX_CMDLINE_SIZE SZ_4K #define IH_INITRD_ARCH IH_ARCH_DEFAULT #ifndef USE_HOSTCC DECLARE_GLOBAL_DATA_PTR; bootm_headers_t images; /* pointers to os/initrd/fdt images */ static const void *boot_get_kernel(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[], bootm_headers_t *images, ulong *os_data, ulong *os_len); __weak void board_quiesce_devices(void) { } #ifdef CONFIG_LMB static void boot_start_lmb(bootm_headers_t *images) { ulong mem_start; phys_size_t mem_size; mem_start = env_get_bootm_low(); mem_size = env_get_bootm_size(); lmb_init_and_reserve_range(&images->lmb, (phys_addr_t)mem_start, mem_size, NULL); } #else #define lmb_reserve(lmb, base, size) static inline void boot_start_lmb(bootm_headers_t *images) { } #endif static int bootm_start(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { memset((void *)&images, 0, sizeof(images)); images.verify = env_get_yesno("verify"); boot_start_lmb(&images); bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start"); images.state = BOOTM_STATE_START; return 0; } static ulong bootm_data_addr(int argc, char *const argv[]) { ulong addr; if (argc > 0) addr = simple_strtoul(argv[0], NULL, 16); else addr = image_load_addr; return addr; } static int bootm_pre_load(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { ulong data_addr = bootm_data_addr(argc, argv); int ret = 0; if (CONFIG_IS_ENABLED(CMD_BOOTM_PRE_LOAD)) ret = image_pre_load(data_addr); if (ret) ret = CMD_RET_FAILURE; return ret; } static int bootm_find_os(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { const void *os_hdr; bool ep_found = false; int ret; /* get kernel image header, start address and length */ os_hdr = boot_get_kernel(cmdtp, flag, argc, argv, &images, &images.os.image_start, &images.os.image_len); if (images.os.image_len == 0) { puts("ERROR: can't get kernel image!\n"); return 1; } /* get image parameters */ switch (genimg_get_format(os_hdr)) { #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT) case IMAGE_FORMAT_LEGACY: images.os.type = image_get_type(os_hdr); images.os.comp = image_get_comp(os_hdr); images.os.os = image_get_os(os_hdr); images.os.end = image_get_image_end(os_hdr); images.os.load = image_get_load(os_hdr); images.os.arch = image_get_arch(os_hdr); break; #endif #if CONFIG_IS_ENABLED(FIT) case IMAGE_FORMAT_FIT: if (fit_image_get_type(images.fit_hdr_os, images.fit_noffset_os, &images.os.type)) { puts("Can't get image type!\n"); bootstage_error(BOOTSTAGE_ID_FIT_TYPE); return 1; } if (fit_image_get_comp(images.fit_hdr_os, images.fit_noffset_os, &images.os.comp)) { puts("Can't get image compression!\n"); bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION); return 1; } if (fit_image_get_os(images.fit_hdr_os, images.fit_noffset_os, &images.os.os)) { puts("Can't get image OS!\n"); bootstage_error(BOOTSTAGE_ID_FIT_OS); return 1; } if (fit_image_get_arch(images.fit_hdr_os, images.fit_noffset_os, &images.os.arch)) { puts("Can't get image ARCH!\n"); return 1; } images.os.end = fit_get_end(images.fit_hdr_os); if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os, &images.os.load)) { puts("Can't get image load address!\n"); bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR); return 1; } break; #endif #ifdef CONFIG_ANDROID_BOOT_IMAGE case IMAGE_FORMAT_ANDROID: images.os.type = IH_TYPE_KERNEL; images.os.comp = android_image_get_kcomp(os_hdr); images.os.os = IH_OS_LINUX; images.os.end = android_image_get_end(os_hdr); images.os.load = android_image_get_kload(os_hdr); images.ep = images.os.load; ep_found = true; break; #endif default: puts("ERROR: unknown image format type!\n"); return 1; } /* If we have a valid setup.bin, we will use that for entry (x86) */ if (images.os.arch == IH_ARCH_I386 || images.os.arch == IH_ARCH_X86_64) { ulong len; ret = boot_get_setup(&images, IH_ARCH_I386, &images.ep, &len); if (ret < 0 && ret != -ENOENT) { puts("Could not find a valid setup.bin for x86\n"); return 1; } /* Kernel entry point is the setup.bin */ } else if (images.legacy_hdr_valid) { images.ep = image_get_ep(&images.legacy_hdr_os_copy); #if CONFIG_IS_ENABLED(FIT) } else if (images.fit_uname_os) { int ret; ret = fit_image_get_entry(images.fit_hdr_os, images.fit_noffset_os, &images.ep); if (ret) { puts("Can't get entry point property!\n"); return 1; } #endif } else if (!ep_found) { puts("Could not find kernel entry point!\n"); return 1; } if (images.os.type == IH_TYPE_KERNEL_NOLOAD) { if (CONFIG_IS_ENABLED(CMD_BOOTI) && images.os.arch == IH_ARCH_ARM64) { ulong image_addr; ulong image_size; ret = booti_setup(images.os.image_start, &image_addr, &image_size, true); if (ret != 0) return 1; images.os.type = IH_TYPE_KERNEL; images.os.load = image_addr; images.ep = image_addr; } else { images.os.load = images.os.image_start; images.ep += images.os.image_start; } } images.os.start = map_to_sysmem(os_hdr); return 0; } /** * bootm_find_images - wrapper to find and locate various images * @flag: Ignored Argument * @argc: command argument count * @argv: command argument list * @start: OS image start address * @size: OS image size * * boot_find_images() will attempt to load an available ramdisk, * flattened device tree, as well as specifically marked * "loadable" images (loadables are FIT only) * * Note: bootm_find_images will skip an image if it is not found * * @return: * 0, if all existing images were loaded correctly * 1, if an image is found but corrupted, or invalid */ int bootm_find_images(int flag, int argc, char *const argv[], ulong start, ulong size) { int ret; /* find ramdisk */ ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH, &images.rd_start, &images.rd_end); if (ret) { puts("Ramdisk image is corrupt or invalid\n"); return 1; } /* check if ramdisk overlaps OS image */ if (images.rd_start && (((ulong)images.rd_start >= start && (ulong)images.rd_start < start + size) || ((ulong)images.rd_end > start && (ulong)images.rd_end <= start + size) || ((ulong)images.rd_start < start && (ulong)images.rd_end >= start + size))) { printf("ERROR: RD image overlaps OS image (OS=0x%lx..0x%lx)\n", start, start + size); return 1; } #if CONFIG_IS_ENABLED(OF_LIBFDT) /* find flattened device tree */ ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images, &images.ft_addr, &images.ft_len); if (ret) { puts("Could not find a valid device tree\n"); return 1; } /* check if FDT overlaps OS image */ if (images.ft_addr && (((ulong)images.ft_addr >= start && (ulong)images.ft_addr < start + size) || ((ulong)images.ft_addr + images.ft_len >= start && (ulong)images.ft_addr + images.ft_len < start + size))) { printf("ERROR: FDT image overlaps OS image (OS=0x%lx..0x%lx)\n", start, start + size); return 1; } if (CONFIG_IS_ENABLED(CMD_FDT)) set_working_fdt_addr(map_to_sysmem(images.ft_addr)); #endif #if CONFIG_IS_ENABLED(FIT) if (IS_ENABLED(CONFIG_FPGA)) { /* find bitstreams */ ret = boot_get_fpga(argc, argv, &images, IH_ARCH_DEFAULT, NULL, NULL); if (ret) { printf("FPGA image is corrupted or invalid\n"); return 1; } } /* find all of the loadables */ ret = boot_get_loadable(argc, argv, &images, IH_ARCH_DEFAULT, NULL, NULL); if (ret) { printf("Loadable(s) is corrupt or invalid\n"); return 1; } #endif return 0; } static int bootm_find_other(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { if (((images.os.type == IH_TYPE_KERNEL) || (images.os.type == IH_TYPE_KERNEL_NOLOAD) || (images.os.type == IH_TYPE_MULTI)) && (images.os.os == IH_OS_LINUX || images.os.os == IH_OS_VXWORKS)) return bootm_find_images(flag, argc, argv, 0, 0); return 0; } #endif /* USE_HOSTC */ #if !defined(USE_HOSTCC) || defined(CONFIG_FIT_SIGNATURE) /** * handle_decomp_error() - display a decompression error * * This function tries to produce a useful message. In the case where the * uncompressed size is the same as the available space, we can assume that * the image is too large for the buffer. * * @comp_type: Compression type being used (IH_COMP_...) * @uncomp_size: Number of bytes uncompressed * @buf_size: Number of bytes the decompresion buffer was * @ret: errno error code received from compression library * Return: Appropriate BOOTM_ERR_ error code */ static int handle_decomp_error(int comp_type, size_t uncomp_size, size_t buf_size, int ret) { const char *name = genimg_get_comp_name(comp_type); /* ENOSYS means unimplemented compression type, don't reset. */ if (ret == -ENOSYS) return BOOTM_ERR_UNIMPLEMENTED; if (uncomp_size >= buf_size) printf("Image too large: increase CONFIG_SYS_BOOTM_LEN\n"); else printf("%s: uncompress error %d\n", name, ret); /* * The decompression routines are now safe, so will not write beyond * their bounds. Probably it is not necessary to reset, but maintain * the current behaviour for now. */ printf("Must RESET board to recover\n"); #ifndef USE_HOSTCC bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE); #endif return BOOTM_ERR_RESET; } #endif #ifndef USE_HOSTCC static int bootm_load_os(bootm_headers_t *images, int boot_progress) { image_info_t os = images->os; ulong load = os.load; ulong load_end; ulong blob_start = os.start; ulong blob_end = os.end; ulong image_start = os.image_start; ulong image_len = os.image_len; ulong flush_start = ALIGN_DOWN(load, ARCH_DMA_MINALIGN); bool no_overlap; void *load_buf, *image_buf; int err; load_buf = map_sysmem(load, 0); image_buf = map_sysmem(os.image_start, image_len); err = image_decomp(os.comp, load, os.image_start, os.type, load_buf, image_buf, image_len, CONFIG_SYS_BOOTM_LEN, &load_end); if (err) { err = handle_decomp_error(os.comp, load_end - load, CONFIG_SYS_BOOTM_LEN, err); bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE); return err; } /* We need the decompressed image size in the next steps */ images->os.image_len = load_end - load; flush_cache(flush_start, ALIGN(load_end, ARCH_DMA_MINALIGN) - flush_start); debug(" kernel loaded at 0x%08lx, end = 0x%08lx\n", load, load_end); bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED); no_overlap = (os.comp == IH_COMP_NONE && load == image_start); if (!no_overlap && load < blob_end && load_end > blob_start) { debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n", blob_start, blob_end); debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load, load_end); /* Check what type of image this is. */ if (images->legacy_hdr_valid) { if (image_get_type(&images->legacy_hdr_os_copy) == IH_TYPE_MULTI) puts("WARNING: legacy format multi component image overwritten\n"); return BOOTM_ERR_OVERLAP; } else { puts("ERROR: new format image overwritten - must RESET the board to recover\n"); bootstage_error(BOOTSTAGE_ID_OVERWRITTEN); return BOOTM_ERR_RESET; } } lmb_reserve(&images->lmb, images->os.load, (load_end - images->os.load)); return 0; } /** * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot * * Return: interrupt flag (0 if interrupts were disabled, non-zero if they were * enabled) */ ulong bootm_disable_interrupts(void) { ulong iflag; /* * We have reached the point of no return: we are going to * overwrite all exception vector code, so we cannot easily * recover from any failures any more... */ iflag = disable_interrupts(); #ifdef CONFIG_NETCONSOLE /* Stop the ethernet stack if NetConsole could have left it up */ eth_halt(); # ifndef CONFIG_DM_ETH eth_unregister(eth_get_dev()); # endif #endif #if defined(CONFIG_CMD_USB) /* * turn off USB to prevent the host controller from writing to the * SDRAM while Linux is booting. This could happen (at least for OHCI * controller), because the HCCA (Host Controller Communication Area) * lies within the SDRAM and the host controller writes continously to * this area (as busmaster!). The HccaFrameNumber is for example * updated every 1 ms within the HCCA structure in SDRAM! For more * details see the OpenHCI specification. */ usb_stop(); #endif return iflag; } #define CONSOLE_ARG "console=" #define NULL_CONSOLE (CONSOLE_ARG "ttynull") #define CONSOLE_ARG_SIZE sizeof(NULL_CONSOLE) /** * fixup_silent_linux() - Handle silencing the linux boot if required * * This uses the silent_linux envvar to control whether to add/set a "console=" * parameter to the command line * * @buf: Buffer containing the string to process * @maxlen: Maximum length of buffer * Return: 0 if OK, -ENOSPC if @maxlen is too small */ static int fixup_silent_linux(char *buf, int maxlen) { int want_silent; char *cmdline; int size; /* * Move the input string to the end of buffer. The output string will be * built up at the start. */ size = strlen(buf) + 1; if (size * 2 > maxlen) return -ENOSPC; cmdline = buf + maxlen - size; memmove(cmdline, buf, size); /* * Only fix cmdline when requested. The environment variable can be: * * no - we never fixup * yes - we always fixup * unset - we rely on the console silent flag */ want_silent = env_get_yesno("silent_linux"); if (want_silent == 0) return 0; else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT)) return 0; debug("before silent fix-up: %s\n", cmdline); if (*cmdline) { char *start = strstr(cmdline, CONSOLE_ARG); /* Check space for maximum possible new command line */ if (size + CONSOLE_ARG_SIZE > maxlen) return -ENOSPC; if (start) { char *end = strchr(start, ' '); int start_bytes; start_bytes = start - cmdline; strncpy(buf, cmdline, start_bytes); strncpy(buf + start_bytes, NULL_CONSOLE, CONSOLE_ARG_SIZE); if (end) strcpy(buf + start_bytes + CONSOLE_ARG_SIZE - 1, end); else buf[start_bytes + CONSOLE_ARG_SIZE] = '\0'; } else { sprintf(buf, "%s %s", cmdline, NULL_CONSOLE); } if (buf + strlen(buf) >= cmdline) return -ENOSPC; } else { if (maxlen < CONSOLE_ARG_SIZE) return -ENOSPC; strcpy(buf, NULL_CONSOLE); } debug("after silent fix-up: %s\n", buf); return 0; } /** * process_subst() - Handle substitution of ${...} fields in the environment * * Handle variable substitution in the provided buffer * * @buf: Buffer containing the string to process * @maxlen: Maximum length of buffer * Return: 0 if OK, -ENOSPC if @maxlen is too small */ static int process_subst(char *buf, int maxlen) { char *cmdline; int size; int ret; /* Move to end of buffer */ size = strlen(buf) + 1; cmdline = buf + maxlen - size; if (buf + size > cmdline) return -ENOSPC; memmove(cmdline, buf, size); ret = cli_simple_process_macros(cmdline, buf, cmdline - buf); return ret; } int bootm_process_cmdline(char *buf, int maxlen, int flags) { int ret; /* Check config first to enable compiler to eliminate code */ if (IS_ENABLED(CONFIG_SILENT_CONSOLE) && !IS_ENABLED(CONFIG_SILENT_U_BOOT_ONLY) && (flags & BOOTM_CL_SILENT)) { ret = fixup_silent_linux(buf, maxlen); if (ret) return log_msg_ret("silent", ret); } if (IS_ENABLED(CONFIG_BOOTARGS_SUBST) && IS_ENABLED(CONFIG_CMDLINE) && (flags & BOOTM_CL_SUBST)) { ret = process_subst(buf, maxlen); if (ret) return log_msg_ret("subst", ret); } return 0; } int bootm_process_cmdline_env(int flags) { const int maxlen = MAX_CMDLINE_SIZE; bool do_silent; const char *env; char *buf; int ret; /* First check if any action is needed */ do_silent = IS_ENABLED(CONFIG_SILENT_CONSOLE) && !IS_ENABLED(CONFIG_SILENT_U_BOOT_ONLY) && (flags & BOOTM_CL_SILENT); if (!do_silent && !IS_ENABLED(CONFIG_BOOTARGS_SUBST)) return 0; env = env_get("bootargs"); if (env && strlen(env) >= maxlen) return -E2BIG; buf = malloc(maxlen); if (!buf) return -ENOMEM; if (env) strcpy(buf, env); else *buf = '\0'; ret = bootm_process_cmdline(buf, maxlen, flags); if (!ret) { ret = env_set("bootargs", buf); /* * If buf is "" and bootargs does not exist, this will produce * an error trying to delete bootargs. Ignore it */ if (ret == -ENOENT) ret = 0; } free(buf); if (ret) return log_msg_ret("env", ret); return 0; } /** * Execute selected states of the bootm command. * * Note the arguments to this state must be the first argument, Any 'bootm' * or sub-command arguments must have already been taken. * * Note that if states contains more than one flag it MUST contain * BOOTM_STATE_START, since this handles and consumes the command line args. * * Also note that aside from boot_os_fn functions and bootm_load_os no other * functions we store the return value of in 'ret' may use a negative return * value, without special handling. * * @param cmdtp Pointer to bootm command table entry * @param flag Command flags (CMD_FLAG_...) * @param argc Number of subcommand arguments (0 = no arguments) * @param argv Arguments * @param states Mask containing states to run (BOOTM_STATE_...) * @param images Image header information * @param boot_progress 1 to show boot progress, 0 to not do this * Return: 0 if ok, something else on error. Some errors will cause this * function to perform a reboot! If states contains BOOTM_STATE_OS_GO * then the intent is to boot an OS, so this function will not return * unless the image type is standalone. */ int do_bootm_states(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[], int states, bootm_headers_t *images, int boot_progress) { boot_os_fn *boot_fn; ulong iflag = 0; int ret = 0, need_boot_fn; images->state |= states; /* * Work through the states and see how far we get. We stop on * any error. */ if (states & BOOTM_STATE_START) ret = bootm_start(cmdtp, flag, argc, argv); if (!ret && (states & BOOTM_STATE_PRE_LOAD)) ret = bootm_pre_load(cmdtp, flag, argc, argv); if (!ret && (states & BOOTM_STATE_FINDOS)) ret = bootm_find_os(cmdtp, flag, argc, argv); if (!ret && (states & BOOTM_STATE_FINDOTHER)) ret = bootm_find_other(cmdtp, flag, argc, argv); /* Load the OS */ if (!ret && (states & BOOTM_STATE_LOADOS)) { iflag = bootm_disable_interrupts(); ret = bootm_load_os(images, 0); if (ret && ret != BOOTM_ERR_OVERLAP) goto err; else if (ret == BOOTM_ERR_OVERLAP) ret = 0; } /* Relocate the ramdisk */ #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH if (!ret && (states & BOOTM_STATE_RAMDISK)) { ulong rd_len = images->rd_end - images->rd_start; ret = boot_ramdisk_high(&images->lmb, images->rd_start, rd_len, &images->initrd_start, &images->initrd_end); if (!ret) { env_set_hex("initrd_start", images->initrd_start); env_set_hex("initrd_end", images->initrd_end); } } #endif #if CONFIG_IS_ENABLED(OF_LIBFDT) && defined(CONFIG_LMB) if (!ret && (states & BOOTM_STATE_FDT)) { boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr); ret = boot_relocate_fdt(&images->lmb, &images->ft_addr, &images->ft_len); } #endif /* From now on, we need the OS boot function */ if (ret) return ret; boot_fn = bootm_os_get_boot_func(images->os.os); need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE | BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO); if (boot_fn == NULL && need_boot_fn) { if (iflag) enable_interrupts(); printf("ERROR: booting os '%s' (%d) is not supported\n", genimg_get_os_name(images->os.os), images->os.os); bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS); return 1; } /* Call various other states that are not generally used */ if (!ret && (states & BOOTM_STATE_OS_CMDLINE)) ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images); if (!ret && (states & BOOTM_STATE_OS_BD_T)) ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images); if (!ret && (states & BOOTM_STATE_OS_PREP)) { ret = bootm_process_cmdline_env(images->os.os == IH_OS_LINUX); if (ret) { printf("Cmdline setup failed (err=%d)\n", ret); ret = CMD_RET_FAILURE; goto err; } ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images); } #ifdef CONFIG_TRACE /* Pretend to run the OS, then run a user command */ if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) { char *cmd_list = env_get("fakegocmd"); ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO, images, boot_fn); if (!ret && cmd_list) ret = run_command_list(cmd_list, -1, flag); } #endif /* Check for unsupported subcommand. */ if (ret) { puts("subcommand not supported\n"); return ret; } /* Now run the OS! We hope this doesn't return */ if (!ret && (states & BOOTM_STATE_OS_GO)) ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO, images, boot_fn); /* Deal with any fallout */ err: if (iflag) enable_interrupts(); if (ret == BOOTM_ERR_UNIMPLEMENTED) bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL); else if (ret == BOOTM_ERR_RESET) do_reset(cmdtp, flag, argc, argv); return ret; } #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT) /** * image_get_kernel - verify legacy format kernel image * @img_addr: in RAM address of the legacy format image to be verified * @verify: data CRC verification flag * * image_get_kernel() verifies legacy image integrity and returns pointer to * legacy image header if image verification was completed successfully. * * returns: * pointer to a legacy image header if valid image was found * otherwise return NULL */ static image_header_t *image_get_kernel(ulong img_addr, int verify) { image_header_t *hdr = (image_header_t *)img_addr; if (!image_check_magic(hdr)) { puts("Bad Magic Number\n"); bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC); return NULL; } bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER); if (!image_check_hcrc(hdr)) { puts("Bad Header Checksum\n"); bootstage_error(BOOTSTAGE_ID_CHECK_HEADER); return NULL; } bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM); image_print_contents(hdr); if (verify) { puts(" Verifying Checksum ... "); if (!image_check_dcrc(hdr)) { printf("Bad Data CRC\n"); bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM); return NULL; } puts("OK\n"); } bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH); if (!image_check_target_arch(hdr)) { printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr)); bootstage_error(BOOTSTAGE_ID_CHECK_ARCH); return NULL; } return hdr; } #endif /** * boot_get_kernel - find kernel image * @os_data: pointer to a ulong variable, will hold os data start address * @os_len: pointer to a ulong variable, will hold os data length * * boot_get_kernel() tries to find a kernel image, verifies its integrity * and locates kernel data. * * returns: * pointer to image header if valid image was found, plus kernel start * address and length, otherwise NULL */ static const void *boot_get_kernel(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[], bootm_headers_t *images, ulong *os_data, ulong *os_len) { #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT) image_header_t *hdr; #endif ulong img_addr; const void *buf; const char *fit_uname_config = NULL; const char *fit_uname_kernel = NULL; #if CONFIG_IS_ENABLED(FIT) int os_noffset; #endif img_addr = genimg_get_kernel_addr_fit(argc < 1 ? NULL : argv[0], &fit_uname_config, &fit_uname_kernel); if (CONFIG_IS_ENABLED(CMD_BOOTM_PRE_LOAD)) img_addr += image_load_offset; bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC); /* check image type, for FIT images get FIT kernel node */ *os_data = *os_len = 0; buf = map_sysmem(img_addr, 0); switch (genimg_get_format(buf)) { #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT) case IMAGE_FORMAT_LEGACY: printf("## Booting kernel from Legacy Image at %08lx ...\n", img_addr); hdr = image_get_kernel(img_addr, images->verify); if (!hdr) return NULL; bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE); /* get os_data and os_len */ switch (image_get_type(hdr)) { case IH_TYPE_KERNEL: case IH_TYPE_KERNEL_NOLOAD: *os_data = image_get_data(hdr); *os_len = image_get_data_size(hdr); break; case IH_TYPE_MULTI: image_multi_getimg(hdr, 0, os_data, os_len); break; case IH_TYPE_STANDALONE: *os_data = image_get_data(hdr); *os_len = image_get_data_size(hdr); break; default: printf("Wrong Image Type for %s command\n", cmdtp->name); bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE); return NULL; } /* * copy image header to allow for image overwrites during * kernel decompression. */ memmove(&images->legacy_hdr_os_copy, hdr, sizeof(image_header_t)); /* save pointer to image header */ images->legacy_hdr_os = hdr; images->legacy_hdr_valid = 1; bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE); break; #endif #if CONFIG_IS_ENABLED(FIT) case IMAGE_FORMAT_FIT: os_noffset = fit_image_load(images, img_addr, &fit_uname_kernel, &fit_uname_config, IH_ARCH_DEFAULT, IH_TYPE_KERNEL, BOOTSTAGE_ID_FIT_KERNEL_START, FIT_LOAD_IGNORED, os_data, os_len); if (os_noffset < 0) return NULL; images->fit_hdr_os = map_sysmem(img_addr, 0); images->fit_uname_os = fit_uname_kernel; images->fit_uname_cfg = fit_uname_config; images->fit_noffset_os = os_noffset; break; #endif #ifdef CONFIG_ANDROID_BOOT_IMAGE case IMAGE_FORMAT_ANDROID: printf("## Booting Android Image at 0x%08lx ...\n", img_addr); if (android_image_get_kernel(buf, images->verify, os_data, os_len)) return NULL; break; #endif default: printf("Wrong Image Format for %s command\n", cmdtp->name); bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO); return NULL; } debug(" kernel data at 0x%08lx, len = 0x%08lx (%ld)\n", *os_data, *os_len, *os_len); return buf; } /** * switch_to_non_secure_mode() - switch to non-secure mode * * This routine is overridden by architectures requiring this feature. */ void __weak switch_to_non_secure_mode(void) { } #else /* USE_HOSTCC */ #if defined(CONFIG_FIT_SIGNATURE) static int bootm_host_load_image(const void *fit, int req_image_type, int cfg_noffset) { const char *fit_uname_config = NULL; ulong data, len; bootm_headers_t images; int noffset; ulong load_end, buf_size; uint8_t image_type; uint8_t image_comp; void *load_buf; int ret; fit_uname_config = fdt_get_name(fit, cfg_noffset, NULL); memset(&images, '\0', sizeof(images)); images.verify = 1; noffset = fit_image_load(&images, (ulong)fit, NULL, &fit_uname_config, IH_ARCH_DEFAULT, req_image_type, -1, FIT_LOAD_IGNORED, &data, &len); if (noffset < 0) return noffset; if (fit_image_get_type(fit, noffset, &image_type)) { puts("Can't get image type!\n"); return -EINVAL; } if (fit_image_get_comp(fit, noffset, &image_comp)) image_comp = IH_COMP_NONE; /* Allow the image to expand by a factor of 4, should be safe */ buf_size = (1 << 20) + len * 4; load_buf = malloc(buf_size); ret = image_decomp(image_comp, 0, data, image_type, load_buf, (void *)data, len, buf_size, &load_end); free(load_buf); if (ret) { ret = handle_decomp_error(image_comp, load_end - 0, buf_size, ret); if (ret != BOOTM_ERR_UNIMPLEMENTED) return ret; } return 0; } int bootm_host_load_images(const void *fit, int cfg_noffset) { static uint8_t image_types[] = { IH_TYPE_KERNEL, IH_TYPE_FLATDT, IH_TYPE_RAMDISK, }; int err = 0; int i; for (i = 0; i < ARRAY_SIZE(image_types); i++) { int ret; ret = bootm_host_load_image(fit, image_types[i], cfg_noffset); if (!err && ret && ret != -ENOENT) err = ret; } /* Return the first error we found */ return err; } #endif #endif /* ndef USE_HOSTCC */