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https://github.com/brain-hackers/u-boot-brain
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![Jaehoon Chung](/assets/img/avatar_default.png)
It doesn't need to consider start byte address.
If ramdisk size is 0x800000 and start address is 0x2700000, then it's
used until 0x02efffff, not 0x02f00000. But it's detected to overlapt RD
image, when kernel start address is 0x02f00000.
Because it's doing wrong calculation about rd_len.
This patch fixed wrong calculation address position when check
condition.
In addition, it needs to check one more condition about overlapping
entire area.
Fixes: commit fbde7589ce
("common: bootm: add checks to verify if ramdisk / fdtimage overlaps OS image")
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
927 lines
25 KiB
C
927 lines
25 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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((ulong)images.rd_start < 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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/* We need the decompressed image size in the next steps */
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images->os.image_len = load_end - load;
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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
|
|
* unset - we rely on the console silent flag
|
|
*/
|
|
want_silent = env_get_yesno("silent_linux");
|
|
if (want_silent == 0)
|
|
return;
|
|
else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT))
|
|
return;
|
|
|
|
debug("before silent fix-up: %s\n", cmdline);
|
|
if (cmdline && (cmdline[0] != '\0')) {
|
|
char *start = strstr(cmdline, CONSOLE_ARG);
|
|
|
|
/* 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 */
|