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https://github.com/brain-hackers/u-boot-brain
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![Tero Kristo](/assets/img/avatar_default.png)
These cases are typically fatal and are difficult to debug for random users. Add checks for detecting overlapping images and abort if overlap is detected. Signed-off-by: Tero Kristo <t-kristo@ti.com>
923 lines
24 KiB
C
923 lines
24 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2000-2009
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*/
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#ifndef USE_HOSTCC
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#include <common.h>
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#include <bootstage.h>
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#include <cpu_func.h>
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#include <env.h>
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#include <errno.h>
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#include <fdt_support.h>
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#include <irq_func.h>
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#include <lmb.h>
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#include <log.h>
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#include <malloc.h>
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#include <mapmem.h>
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#include <net.h>
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#include <asm/cache.h>
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#include <asm/io.h>
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#if defined(CONFIG_CMD_USB)
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#include <usb.h>
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#endif
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#else
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#include "mkimage.h"
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#endif
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#include <command.h>
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#include <bootm.h>
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#include <image.h>
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#ifndef CONFIG_SYS_BOOTM_LEN
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/* use 8MByte as default max gunzip size */
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#define CONFIG_SYS_BOOTM_LEN 0x800000
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#endif
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#define IH_INITRD_ARCH IH_ARCH_DEFAULT
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#ifndef USE_HOSTCC
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DECLARE_GLOBAL_DATA_PTR;
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bootm_headers_t images; /* pointers to os/initrd/fdt images */
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static const void *boot_get_kernel(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[], bootm_headers_t *images,
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ulong *os_data, ulong *os_len);
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__weak void board_quiesce_devices(void)
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{
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}
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#ifdef CONFIG_LMB
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static void boot_start_lmb(bootm_headers_t *images)
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{
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ulong mem_start;
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phys_size_t mem_size;
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mem_start = env_get_bootm_low();
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mem_size = env_get_bootm_size();
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lmb_init_and_reserve_range(&images->lmb, (phys_addr_t)mem_start,
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mem_size, NULL);
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}
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#else
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#define lmb_reserve(lmb, base, size)
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static inline void boot_start_lmb(bootm_headers_t *images) { }
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#endif
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static int bootm_start(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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memset((void *)&images, 0, sizeof(images));
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images.verify = env_get_yesno("verify");
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boot_start_lmb(&images);
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bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
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images.state = BOOTM_STATE_START;
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return 0;
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}
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static int bootm_find_os(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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const void *os_hdr;
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bool ep_found = false;
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int ret;
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/* get kernel image header, start address and length */
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os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
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&images, &images.os.image_start, &images.os.image_len);
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if (images.os.image_len == 0) {
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puts("ERROR: can't get kernel image!\n");
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return 1;
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}
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/* get image parameters */
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switch (genimg_get_format(os_hdr)) {
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#if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
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case IMAGE_FORMAT_LEGACY:
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images.os.type = image_get_type(os_hdr);
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images.os.comp = image_get_comp(os_hdr);
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images.os.os = image_get_os(os_hdr);
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images.os.end = image_get_image_end(os_hdr);
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images.os.load = image_get_load(os_hdr);
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images.os.arch = image_get_arch(os_hdr);
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break;
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#endif
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#if IMAGE_ENABLE_FIT
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case IMAGE_FORMAT_FIT:
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if (fit_image_get_type(images.fit_hdr_os,
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images.fit_noffset_os,
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&images.os.type)) {
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puts("Can't get image type!\n");
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bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
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return 1;
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}
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if (fit_image_get_comp(images.fit_hdr_os,
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images.fit_noffset_os,
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&images.os.comp)) {
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puts("Can't get image compression!\n");
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bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
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return 1;
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}
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if (fit_image_get_os(images.fit_hdr_os, images.fit_noffset_os,
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&images.os.os)) {
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puts("Can't get image OS!\n");
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bootstage_error(BOOTSTAGE_ID_FIT_OS);
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return 1;
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}
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if (fit_image_get_arch(images.fit_hdr_os,
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images.fit_noffset_os,
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&images.os.arch)) {
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puts("Can't get image ARCH!\n");
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return 1;
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}
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images.os.end = fit_get_end(images.fit_hdr_os);
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if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
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&images.os.load)) {
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puts("Can't get image load address!\n");
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bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
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return 1;
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}
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break;
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#endif
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#ifdef CONFIG_ANDROID_BOOT_IMAGE
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case IMAGE_FORMAT_ANDROID:
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images.os.type = IH_TYPE_KERNEL;
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images.os.comp = android_image_get_kcomp(os_hdr);
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images.os.os = IH_OS_LINUX;
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images.os.end = android_image_get_end(os_hdr);
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images.os.load = android_image_get_kload(os_hdr);
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images.ep = images.os.load;
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ep_found = true;
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break;
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#endif
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default:
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puts("ERROR: unknown image format type!\n");
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return 1;
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}
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/* If we have a valid setup.bin, we will use that for entry (x86) */
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if (images.os.arch == IH_ARCH_I386 ||
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images.os.arch == IH_ARCH_X86_64) {
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ulong len;
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ret = boot_get_setup(&images, IH_ARCH_I386, &images.ep, &len);
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if (ret < 0 && ret != -ENOENT) {
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puts("Could not find a valid setup.bin for x86\n");
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return 1;
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}
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/* Kernel entry point is the setup.bin */
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} else if (images.legacy_hdr_valid) {
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images.ep = image_get_ep(&images.legacy_hdr_os_copy);
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#if IMAGE_ENABLE_FIT
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} else if (images.fit_uname_os) {
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int ret;
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ret = fit_image_get_entry(images.fit_hdr_os,
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images.fit_noffset_os, &images.ep);
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if (ret) {
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puts("Can't get entry point property!\n");
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return 1;
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}
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#endif
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} else if (!ep_found) {
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puts("Could not find kernel entry point!\n");
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return 1;
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}
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if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
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if (CONFIG_IS_ENABLED(CMD_BOOTI) &&
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images.os.arch == IH_ARCH_ARM64) {
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ulong image_addr;
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ulong image_size;
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ret = booti_setup(images.os.image_start, &image_addr,
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&image_size, true);
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if (ret != 0)
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return 1;
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images.os.type = IH_TYPE_KERNEL;
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images.os.load = image_addr;
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images.ep = image_addr;
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} else {
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images.os.load = images.os.image_start;
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images.ep += images.os.image_start;
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}
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}
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images.os.start = map_to_sysmem(os_hdr);
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return 0;
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}
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/**
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* bootm_find_images - wrapper to find and locate various images
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* @flag: Ignored Argument
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* @argc: command argument count
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* @argv: command argument list
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* @start: OS image start address
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* @size: OS image size
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*
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* boot_find_images() will attempt to load an available ramdisk,
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* flattened device tree, as well as specifically marked
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* "loadable" images (loadables are FIT only)
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*
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* Note: bootm_find_images will skip an image if it is not found
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*
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* @return:
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* 0, if all existing images were loaded correctly
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* 1, if an image is found but corrupted, or invalid
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*/
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int bootm_find_images(int flag, int argc, char *const argv[], ulong start,
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ulong size)
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{
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int ret;
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/* find ramdisk */
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ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
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&images.rd_start, &images.rd_end);
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if (ret) {
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puts("Ramdisk image is corrupt or invalid\n");
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return 1;
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}
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/* check if ramdisk overlaps OS image */
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if (images.rd_start && (((ulong)images.rd_start >= start &&
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(ulong)images.rd_start <= start + size) ||
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((ulong)images.rd_end >= start &&
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(ulong)images.rd_end <= start + size))) {
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printf("ERROR: RD image overlaps OS image (OS=0x%lx..0x%lx)\n",
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start, start + size);
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return 1;
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}
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#if IMAGE_ENABLE_OF_LIBFDT
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/* find flattened device tree */
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ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images,
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&images.ft_addr, &images.ft_len);
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if (ret) {
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puts("Could not find a valid device tree\n");
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return 1;
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}
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/* check if FDT overlaps OS image */
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if (images.ft_addr &&
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(((ulong)images.ft_addr >= start &&
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(ulong)images.ft_addr <= start + size) ||
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((ulong)images.ft_addr + images.ft_len >= start &&
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(ulong)images.ft_addr + images.ft_len <= start + size))) {
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printf("ERROR: FDT image overlaps OS image (OS=0x%lx..0x%lx)\n",
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start, start + size);
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return 1;
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}
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if (CONFIG_IS_ENABLED(CMD_FDT))
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set_working_fdt_addr(map_to_sysmem(images.ft_addr));
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#endif
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#if IMAGE_ENABLE_FIT
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#if defined(CONFIG_FPGA)
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/* find bitstreams */
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ret = boot_get_fpga(argc, argv, &images, IH_ARCH_DEFAULT,
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NULL, NULL);
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if (ret) {
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printf("FPGA image is corrupted or invalid\n");
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return 1;
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}
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#endif
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/* find all of the loadables */
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ret = boot_get_loadable(argc, argv, &images, IH_ARCH_DEFAULT,
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NULL, NULL);
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if (ret) {
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printf("Loadable(s) is corrupt or invalid\n");
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return 1;
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}
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#endif
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return 0;
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}
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static int bootm_find_other(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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if (((images.os.type == IH_TYPE_KERNEL) ||
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(images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
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(images.os.type == IH_TYPE_MULTI)) &&
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(images.os.os == IH_OS_LINUX ||
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images.os.os == IH_OS_VXWORKS))
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return bootm_find_images(flag, argc, argv, 0, 0);
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return 0;
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}
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#endif /* USE_HOSTC */
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#if !defined(USE_HOSTCC) || defined(CONFIG_FIT_SIGNATURE)
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/**
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* handle_decomp_error() - display a decompression error
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*
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* This function tries to produce a useful message. In the case where the
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* uncompressed size is the same as the available space, we can assume that
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* the image is too large for the buffer.
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*
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* @comp_type: Compression type being used (IH_COMP_...)
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* @uncomp_size: Number of bytes uncompressed
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* @ret: errno error code received from compression library
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* @return Appropriate BOOTM_ERR_ error code
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*/
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static int handle_decomp_error(int comp_type, size_t uncomp_size, int ret)
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{
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const char *name = genimg_get_comp_name(comp_type);
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/* ENOSYS means unimplemented compression type, don't reset. */
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if (ret == -ENOSYS)
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return BOOTM_ERR_UNIMPLEMENTED;
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if (uncomp_size >= CONFIG_SYS_BOOTM_LEN)
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printf("Image too large: increase CONFIG_SYS_BOOTM_LEN\n");
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else
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printf("%s: uncompress error %d\n", name, ret);
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/*
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* The decompression routines are now safe, so will not write beyond
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* their bounds. Probably it is not necessary to reset, but maintain
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* the current behaviour for now.
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*/
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printf("Must RESET board to recover\n");
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#ifndef USE_HOSTCC
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bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
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#endif
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return BOOTM_ERR_RESET;
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}
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#endif
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#ifndef USE_HOSTCC
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static int bootm_load_os(bootm_headers_t *images, int boot_progress)
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{
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image_info_t os = images->os;
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ulong load = os.load;
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ulong load_end;
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ulong blob_start = os.start;
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ulong blob_end = os.end;
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ulong image_start = os.image_start;
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ulong image_len = os.image_len;
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ulong flush_start = ALIGN_DOWN(load, ARCH_DMA_MINALIGN);
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bool no_overlap;
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void *load_buf, *image_buf;
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int err;
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load_buf = map_sysmem(load, 0);
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image_buf = map_sysmem(os.image_start, image_len);
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err = image_decomp(os.comp, load, os.image_start, os.type,
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load_buf, image_buf, image_len,
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CONFIG_SYS_BOOTM_LEN, &load_end);
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if (err) {
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err = handle_decomp_error(os.comp, load_end - load, err);
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bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
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return err;
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}
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flush_cache(flush_start, ALIGN(load_end, ARCH_DMA_MINALIGN) - flush_start);
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debug(" kernel loaded at 0x%08lx, end = 0x%08lx\n", load, load_end);
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bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
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no_overlap = (os.comp == IH_COMP_NONE && load == image_start);
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if (!no_overlap && load < blob_end && load_end > blob_start) {
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debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
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blob_start, blob_end);
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debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
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load_end);
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/* Check what type of image this is. */
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if (images->legacy_hdr_valid) {
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if (image_get_type(&images->legacy_hdr_os_copy)
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== IH_TYPE_MULTI)
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puts("WARNING: legacy format multi component image overwritten\n");
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return BOOTM_ERR_OVERLAP;
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} else {
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puts("ERROR: new format image overwritten - must RESET the board to recover\n");
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bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
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return BOOTM_ERR_RESET;
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}
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}
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lmb_reserve(&images->lmb, images->os.load, (load_end -
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images->os.load));
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return 0;
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}
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/**
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* bootm_disable_interrupts() - Disable interrupts in preparation for load/boot
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*
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* @return interrupt flag (0 if interrupts were disabled, non-zero if they were
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* enabled)
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*/
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ulong bootm_disable_interrupts(void)
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{
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ulong iflag;
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/*
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* We have reached the point of no return: we are going to
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* overwrite all exception vector code, so we cannot easily
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* recover from any failures any more...
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*/
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iflag = disable_interrupts();
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#ifdef CONFIG_NETCONSOLE
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/* Stop the ethernet stack if NetConsole could have left it up */
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eth_halt();
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# ifndef CONFIG_DM_ETH
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eth_unregister(eth_get_dev());
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# endif
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#endif
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#if defined(CONFIG_CMD_USB)
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/*
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* turn off USB to prevent the host controller from writing to the
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* SDRAM while Linux is booting. This could happen (at least for OHCI
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* controller), because the HCCA (Host Controller Communication Area)
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* lies within the SDRAM and the host controller writes continously to
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* this area (as busmaster!). The HccaFrameNumber is for example
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* updated every 1 ms within the HCCA structure in SDRAM! For more
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* details see the OpenHCI specification.
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*/
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usb_stop();
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#endif
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return iflag;
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}
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#if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
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#define CONSOLE_ARG "console="
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#define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1)
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static void fixup_silent_linux(void)
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{
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char *buf;
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const char *env_val;
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char *cmdline = env_get("bootargs");
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int want_silent;
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/*
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* Only fix cmdline when requested. The environment variable can be:
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*
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* no - we never fixup
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* yes - we always fixup
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* unset - we rely on the console silent flag
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*/
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want_silent = env_get_yesno("silent_linux");
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if (want_silent == 0)
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return;
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else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT))
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return;
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debug("before silent fix-up: %s\n", cmdline);
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if (cmdline && (cmdline[0] != '\0')) {
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char *start = strstr(cmdline, CONSOLE_ARG);
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/* Allocate space for maximum possible new command line */
|
|
buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1);
|
|
if (!buf) {
|
|
debug("%s: out of memory\n", __func__);
|
|
return;
|
|
}
|
|
|
|
if (start) {
|
|
char *end = strchr(start, ' ');
|
|
int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN;
|
|
|
|
strncpy(buf, cmdline, num_start_bytes);
|
|
if (end)
|
|
strcpy(buf + num_start_bytes, end);
|
|
else
|
|
buf[num_start_bytes] = '\0';
|
|
} else {
|
|
sprintf(buf, "%s %s", cmdline, CONSOLE_ARG);
|
|
}
|
|
env_val = buf;
|
|
} else {
|
|
buf = NULL;
|
|
env_val = CONSOLE_ARG;
|
|
}
|
|
|
|
env_set("bootargs", env_val);
|
|
debug("after silent fix-up: %s\n", env_val);
|
|
free(buf);
|
|
}
|
|
#endif /* CONFIG_SILENT_CONSOLE */
|
|
|
|
/**
|
|
* 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_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 IMAGE_ENABLE_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)) {
|
|
#if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
|
|
if (images->os.os == IH_OS_LINUX)
|
|
fixup_silent_linux();
|
|
#endif
|
|
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 IMAGE_ENABLE_FIT
|
|
int os_noffset;
|
|
#endif
|
|
|
|
img_addr = genimg_get_kernel_addr_fit(argc < 1 ? NULL : argv[0],
|
|
&fit_uname_config,
|
|
&fit_uname_kernel);
|
|
|
|
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 IMAGE_ENABLE_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;
|
|
uint8_t image_type;
|
|
uint8_t imape_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, &imape_comp)) {
|
|
puts("Can't get image compression!\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
/* Allow the image to expand by a factor of 4, should be safe */
|
|
load_buf = malloc((1 << 20) + len * 4);
|
|
ret = image_decomp(imape_comp, 0, data, image_type, load_buf,
|
|
(void *)data, len, CONFIG_SYS_BOOTM_LEN,
|
|
&load_end);
|
|
free(load_buf);
|
|
|
|
if (ret) {
|
|
ret = handle_decomp_error(imape_comp, load_end - 0, 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 */
|