1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2000-2009
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
15 #include <fdt_support.h>
22 #include <asm/cache.h>
23 #include <asm/global_data.h>
25 #include <linux/sizes.h>
27 #if defined(CONFIG_CMD_USB)
37 #define MAX_CMDLINE_SIZE SZ_4K
39 #define IH_INITRD_ARCH IH_ARCH_DEFAULT
43 DECLARE_GLOBAL_DATA_PTR
;
45 struct bootm_headers images
; /* pointers to os/initrd/fdt images */
47 __weak
void board_quiesce_devices(void)
51 #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
53 * image_get_kernel - verify legacy format kernel image
54 * @img_addr: in RAM address of the legacy format image to be verified
55 * @verify: data CRC verification flag
57 * image_get_kernel() verifies legacy image integrity and returns pointer to
58 * legacy image header if image verification was completed successfully.
61 * pointer to a legacy image header if valid image was found
62 * otherwise return NULL
64 static struct legacy_img_hdr
*image_get_kernel(ulong img_addr
, int verify
)
66 struct legacy_img_hdr
*hdr
= (struct legacy_img_hdr
*)img_addr
;
68 if (!image_check_magic(hdr
)) {
69 puts("Bad Magic Number\n");
70 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC
);
73 bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER
);
75 if (!image_check_hcrc(hdr
)) {
76 puts("Bad Header Checksum\n");
77 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER
);
81 bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM
);
82 image_print_contents(hdr
);
85 puts(" Verifying Checksum ... ");
86 if (!image_check_dcrc(hdr
)) {
87 printf("Bad Data CRC\n");
88 bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM
);
93 bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH
);
95 if (!image_check_target_arch(hdr
)) {
96 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr
));
97 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH
);
105 * boot_get_kernel() - find kernel image
107 * @addr_fit: first argument to bootm: address, fit configuration, etc.
108 * @os_data: pointer to a ulong variable, will hold os data start address
109 * @os_len: pointer to a ulong variable, will hold os data length
110 * address and length, otherwise NULL
111 * pointer to image header if valid image was found, plus kernel start
112 * @kernp: image header if valid image was found, otherwise NULL
114 * boot_get_kernel() tries to find a kernel image, verifies its integrity
115 * and locates kernel data.
117 * Return: 0 on success, -ve on error. -EPROTOTYPE means that the image is in
118 * a wrong or unsupported format
120 static int boot_get_kernel(const char *addr_fit
, struct bootm_headers
*images
,
121 ulong
*os_data
, ulong
*os_len
, const void **kernp
)
123 #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
124 struct legacy_img_hdr
*hdr
;
128 const char *fit_uname_config
= NULL
, *fit_uname_kernel
= NULL
;
129 #if CONFIG_IS_ENABLED(FIT)
133 #ifdef CONFIG_ANDROID_BOOT_IMAGE
134 const void *boot_img
;
135 const void *vendor_boot_img
;
137 img_addr
= genimg_get_kernel_addr_fit(addr_fit
, &fit_uname_config
,
140 if (IS_ENABLED(CONFIG_CMD_BOOTM_PRE_LOAD
))
141 img_addr
+= image_load_offset
;
143 bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC
);
145 /* check image type, for FIT images get FIT kernel node */
146 *os_data
= *os_len
= 0;
147 buf
= map_sysmem(img_addr
, 0);
148 switch (genimg_get_format(buf
)) {
149 #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
150 case IMAGE_FORMAT_LEGACY
:
151 printf("## Booting kernel from Legacy Image at %08lx ...\n",
153 hdr
= image_get_kernel(img_addr
, images
->verify
);
156 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE
);
158 /* get os_data and os_len */
159 switch (image_get_type(hdr
)) {
161 case IH_TYPE_KERNEL_NOLOAD
:
162 *os_data
= image_get_data(hdr
);
163 *os_len
= image_get_data_size(hdr
);
166 image_multi_getimg(hdr
, 0, os_data
, os_len
);
168 case IH_TYPE_STANDALONE
:
169 *os_data
= image_get_data(hdr
);
170 *os_len
= image_get_data_size(hdr
);
173 bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE
);
178 * copy image header to allow for image overwrites during
179 * kernel decompression.
181 memmove(&images
->legacy_hdr_os_copy
, hdr
,
182 sizeof(struct legacy_img_hdr
));
184 /* save pointer to image header */
185 images
->legacy_hdr_os
= hdr
;
187 images
->legacy_hdr_valid
= 1;
188 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE
);
191 #if CONFIG_IS_ENABLED(FIT)
192 case IMAGE_FORMAT_FIT
:
193 os_noffset
= fit_image_load(images
, img_addr
,
194 &fit_uname_kernel
, &fit_uname_config
,
195 IH_ARCH_DEFAULT
, IH_TYPE_KERNEL
,
196 BOOTSTAGE_ID_FIT_KERNEL_START
,
197 FIT_LOAD_IGNORED
, os_data
, os_len
);
201 images
->fit_hdr_os
= map_sysmem(img_addr
, 0);
202 images
->fit_uname_os
= fit_uname_kernel
;
203 images
->fit_uname_cfg
= fit_uname_config
;
204 images
->fit_noffset_os
= os_noffset
;
207 #ifdef CONFIG_ANDROID_BOOT_IMAGE
208 case IMAGE_FORMAT_ANDROID
: {
212 vendor_boot_img
= NULL
;
213 if (IS_ENABLED(CONFIG_CMD_ABOOTIMG
)) {
214 boot_img
= map_sysmem(get_abootimg_addr(), 0);
215 vendor_boot_img
= map_sysmem(get_avendor_bootimg_addr(), 0);
217 printf("## Booting Android Image at 0x%08lx ...\n", img_addr
);
218 ret
= android_image_get_kernel(boot_img
, vendor_boot_img
,
219 images
->verify
, os_data
, os_len
);
220 if (IS_ENABLED(CONFIG_CMD_ABOOTIMG
)) {
221 unmap_sysmem(vendor_boot_img
);
222 unmap_sysmem(boot_img
);
230 bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE
);
234 debug(" kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
235 *os_data
, *os_len
, *os_len
);
242 static void boot_start_lmb(struct bootm_headers
*images
)
245 phys_size_t mem_size
;
247 mem_start
= env_get_bootm_low();
248 mem_size
= env_get_bootm_size();
250 lmb_init_and_reserve_range(&images
->lmb
, (phys_addr_t
)mem_start
,
254 #define lmb_reserve(lmb, base, size)
255 static inline void boot_start_lmb(struct bootm_headers
*images
) { }
258 static int bootm_start(void)
260 memset((void *)&images
, 0, sizeof(images
));
261 images
.verify
= env_get_yesno("verify");
263 boot_start_lmb(&images
);
265 bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START
, "bootm_start");
266 images
.state
= BOOTM_STATE_START
;
271 static ulong
bootm_data_addr(const char *addr_str
)
276 addr
= hextoul(addr_str
, NULL
);
278 addr
= image_load_addr
;
284 * bootm_pre_load() - Handle the pre-load processing
286 * This can be used to do a full signature check of the image, for example.
287 * It calls image_pre_load() with the data address of the image to check.
289 * @addr_str: String containing load address in hex, or NULL to use
291 * Return: 0 if OK, CMD_RET_FAILURE on failure
293 static int bootm_pre_load(const char *addr_str
)
295 ulong data_addr
= bootm_data_addr(addr_str
);
298 if (IS_ENABLED(CONFIG_CMD_BOOTM_PRE_LOAD
))
299 ret
= image_pre_load(data_addr
);
302 ret
= CMD_RET_FAILURE
;
308 * bootm_find_os(): Find the OS to boot
310 * @cmd_name: Command name that started this boot, e.g. "bootm"
311 * @addr_fit: Address and/or FIT specifier (first arg of bootm command)
312 * Return: 0 on success, -ve on error
314 static int bootm_find_os(const char *cmd_name
, const char *addr_fit
)
317 #ifdef CONFIG_ANDROID_BOOT_IMAGE
318 const void *vendor_boot_img
;
319 const void *boot_img
;
321 bool ep_found
= false;
324 /* get kernel image header, start address and length */
325 ret
= boot_get_kernel(addr_fit
, &images
, &images
.os
.image_start
,
326 &images
.os
.image_len
, &os_hdr
);
328 if (ret
== -EPROTOTYPE
)
329 printf("Wrong Image Type for %s command\n", cmd_name
);
331 printf("ERROR %dE: can't get kernel image!\n", ret
);
335 /* get image parameters */
336 switch (genimg_get_format(os_hdr
)) {
337 #if CONFIG_IS_ENABLED(LEGACY_IMAGE_FORMAT)
338 case IMAGE_FORMAT_LEGACY
:
339 images
.os
.type
= image_get_type(os_hdr
);
340 images
.os
.comp
= image_get_comp(os_hdr
);
341 images
.os
.os
= image_get_os(os_hdr
);
343 images
.os
.end
= image_get_image_end(os_hdr
);
344 images
.os
.load
= image_get_load(os_hdr
);
345 images
.os
.arch
= image_get_arch(os_hdr
);
348 #if CONFIG_IS_ENABLED(FIT)
349 case IMAGE_FORMAT_FIT
:
350 if (fit_image_get_type(images
.fit_hdr_os
,
351 images
.fit_noffset_os
,
353 puts("Can't get image type!\n");
354 bootstage_error(BOOTSTAGE_ID_FIT_TYPE
);
358 if (fit_image_get_comp(images
.fit_hdr_os
,
359 images
.fit_noffset_os
,
361 puts("Can't get image compression!\n");
362 bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION
);
366 if (fit_image_get_os(images
.fit_hdr_os
, images
.fit_noffset_os
,
368 puts("Can't get image OS!\n");
369 bootstage_error(BOOTSTAGE_ID_FIT_OS
);
373 if (fit_image_get_arch(images
.fit_hdr_os
,
374 images
.fit_noffset_os
,
376 puts("Can't get image ARCH!\n");
380 images
.os
.end
= fit_get_end(images
.fit_hdr_os
);
382 if (fit_image_get_load(images
.fit_hdr_os
, images
.fit_noffset_os
,
384 puts("Can't get image load address!\n");
385 bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR
);
390 #ifdef CONFIG_ANDROID_BOOT_IMAGE
391 case IMAGE_FORMAT_ANDROID
:
393 vendor_boot_img
= NULL
;
394 if (IS_ENABLED(CONFIG_CMD_ABOOTIMG
)) {
395 boot_img
= map_sysmem(get_abootimg_addr(), 0);
396 vendor_boot_img
= map_sysmem(get_avendor_bootimg_addr(), 0);
398 images
.os
.type
= IH_TYPE_KERNEL
;
399 images
.os
.comp
= android_image_get_kcomp(boot_img
, vendor_boot_img
);
400 images
.os
.os
= IH_OS_LINUX
;
401 images
.os
.end
= android_image_get_end(boot_img
, vendor_boot_img
);
402 images
.os
.load
= android_image_get_kload(boot_img
, vendor_boot_img
);
403 images
.ep
= images
.os
.load
;
405 if (IS_ENABLED(CONFIG_CMD_ABOOTIMG
)) {
406 unmap_sysmem(vendor_boot_img
);
407 unmap_sysmem(boot_img
);
412 puts("ERROR: unknown image format type!\n");
416 /* If we have a valid setup.bin, we will use that for entry (x86) */
417 if (images
.os
.arch
== IH_ARCH_I386
||
418 images
.os
.arch
== IH_ARCH_X86_64
) {
421 ret
= boot_get_setup(&images
, IH_ARCH_I386
, &images
.ep
, &len
);
422 if (ret
< 0 && ret
!= -ENOENT
) {
423 puts("Could not find a valid setup.bin for x86\n");
426 /* Kernel entry point is the setup.bin */
427 } else if (images
.legacy_hdr_valid
) {
428 images
.ep
= image_get_ep(&images
.legacy_hdr_os_copy
);
429 #if CONFIG_IS_ENABLED(FIT)
430 } else if (images
.fit_uname_os
) {
433 ret
= fit_image_get_entry(images
.fit_hdr_os
,
434 images
.fit_noffset_os
, &images
.ep
);
436 puts("Can't get entry point property!\n");
440 } else if (!ep_found
) {
441 puts("Could not find kernel entry point!\n");
445 if (images
.os
.type
== IH_TYPE_KERNEL_NOLOAD
) {
446 if (IS_ENABLED(CONFIG_CMD_BOOTI
) &&
447 images
.os
.arch
== IH_ARCH_ARM64
&&
448 images
.os
.os
== IH_OS_LINUX
) {
452 ret
= booti_setup(images
.os
.image_start
, &image_addr
,
457 images
.os
.type
= IH_TYPE_KERNEL
;
458 images
.os
.load
= image_addr
;
459 images
.ep
= image_addr
;
461 images
.os
.load
= images
.os
.image_start
;
462 images
.ep
+= images
.os
.image_start
;
466 images
.os
.start
= map_to_sysmem(os_hdr
);
472 * bootm_find_images - wrapper to find and locate various images
473 * @flag: Ignored Argument
474 * @argc: command argument count
475 * @argv: command argument list
476 * @start: OS image start address
477 * @size: OS image size
479 * boot_find_images() will attempt to load an available ramdisk,
480 * flattened device tree, as well as specifically marked
481 * "loadable" images (loadables are FIT only)
483 * Note: bootm_find_images will skip an image if it is not found
486 * 0, if all existing images were loaded correctly
487 * 1, if an image is found but corrupted, or invalid
489 int bootm_find_images(int flag
, int argc
, char *const argv
[], ulong start
,
492 const char *select
= NULL
;
497 if (IS_ENABLED(CONFIG_ANDROID_BOOT_IMAGE
)) {
498 /* Look for an Android boot image */
499 buf
= map_sysmem(images
.os
.start
, 0);
500 if (buf
&& genimg_get_format(buf
) == IMAGE_FORMAT_ANDROID
)
501 select
= argc
? argv
[0] : env_get("loadaddr");
508 ret
= boot_get_ramdisk(select
, &images
, IH_INITRD_ARCH
,
509 &images
.rd_start
, &images
.rd_end
);
511 puts("Ramdisk image is corrupt or invalid\n");
515 /* check if ramdisk overlaps OS image */
516 if (images
.rd_start
&& (((ulong
)images
.rd_start
>= start
&&
517 (ulong
)images
.rd_start
< start
+ size
) ||
518 ((ulong
)images
.rd_end
> start
&&
519 (ulong
)images
.rd_end
<= start
+ size
) ||
520 ((ulong
)images
.rd_start
< start
&&
521 (ulong
)images
.rd_end
>= start
+ size
))) {
522 printf("ERROR: RD image overlaps OS image (OS=0x%lx..0x%lx)\n",
523 start
, start
+ size
);
527 if (CONFIG_IS_ENABLED(OF_LIBFDT
)) {
528 img_addr
= argc
? hextoul(argv
[0], NULL
) : image_load_addr
;
529 buf
= map_sysmem(img_addr
, 0);
531 /* find flattened device tree */
532 ret
= boot_get_fdt(buf
, flag
, argc
, argv
, IH_ARCH_DEFAULT
,
533 &images
, &images
.ft_addr
, &images
.ft_len
);
535 puts("Could not find a valid device tree\n");
539 /* check if FDT overlaps OS image */
540 if (images
.ft_addr
&&
541 (((ulong
)images
.ft_addr
>= start
&&
542 (ulong
)images
.ft_addr
< start
+ size
) ||
543 ((ulong
)images
.ft_addr
+ images
.ft_len
>= start
&&
544 (ulong
)images
.ft_addr
+ images
.ft_len
< start
+ size
))) {
545 printf("ERROR: FDT image overlaps OS image (OS=0x%lx..0x%lx)\n",
546 start
, start
+ size
);
550 if (IS_ENABLED(CONFIG_CMD_FDT
))
551 set_working_fdt_addr(map_to_sysmem(images
.ft_addr
));
554 #if CONFIG_IS_ENABLED(FIT)
555 if (IS_ENABLED(CONFIG_FPGA
)) {
556 /* find bitstreams */
557 ret
= boot_get_fpga(argc
, argv
, &images
, IH_ARCH_DEFAULT
,
560 printf("FPGA image is corrupted or invalid\n");
565 /* find all of the loadables */
566 ret
= boot_get_loadable(argc
, argv
, &images
, IH_ARCH_DEFAULT
,
569 printf("Loadable(s) is corrupt or invalid\n");
577 static int bootm_find_other(struct cmd_tbl
*cmdtp
, int flag
, int argc
,
580 if (((images
.os
.type
== IH_TYPE_KERNEL
) ||
581 (images
.os
.type
== IH_TYPE_KERNEL_NOLOAD
) ||
582 (images
.os
.type
== IH_TYPE_MULTI
)) &&
583 (images
.os
.os
== IH_OS_LINUX
||
584 images
.os
.os
== IH_OS_VXWORKS
))
585 return bootm_find_images(flag
, argc
, argv
, 0, 0);
589 #endif /* USE_HOSTC */
591 #if !defined(USE_HOSTCC) || defined(CONFIG_FIT_SIGNATURE)
593 * handle_decomp_error() - display a decompression error
595 * This function tries to produce a useful message. In the case where the
596 * uncompressed size is the same as the available space, we can assume that
597 * the image is too large for the buffer.
599 * @comp_type: Compression type being used (IH_COMP_...)
600 * @uncomp_size: Number of bytes uncompressed
601 * @buf_size: Number of bytes the decompresion buffer was
602 * @ret: errno error code received from compression library
603 * Return: Appropriate BOOTM_ERR_ error code
605 static int handle_decomp_error(int comp_type
, size_t uncomp_size
,
606 size_t buf_size
, int ret
)
608 const char *name
= genimg_get_comp_name(comp_type
);
610 /* ENOSYS means unimplemented compression type, don't reset. */
612 return BOOTM_ERR_UNIMPLEMENTED
;
614 if (uncomp_size
>= buf_size
)
615 printf("Image too large: increase CONFIG_SYS_BOOTM_LEN\n");
617 printf("%s: uncompress error %d\n", name
, ret
);
620 * The decompression routines are now safe, so will not write beyond
621 * their bounds. Probably it is not necessary to reset, but maintain
622 * the current behaviour for now.
624 printf("Must RESET board to recover\n");
626 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE
);
629 return BOOTM_ERR_RESET
;
634 static int bootm_load_os(struct bootm_headers
*images
, int boot_progress
)
636 struct image_info os
= images
->os
;
637 ulong load
= os
.load
;
639 ulong blob_start
= os
.start
;
640 ulong blob_end
= os
.end
;
641 ulong image_start
= os
.image_start
;
642 ulong image_len
= os
.image_len
;
643 ulong flush_start
= ALIGN_DOWN(load
, ARCH_DMA_MINALIGN
);
645 void *load_buf
, *image_buf
;
648 load_buf
= map_sysmem(load
, 0);
649 image_buf
= map_sysmem(os
.image_start
, image_len
);
650 err
= image_decomp(os
.comp
, load
, os
.image_start
, os
.type
,
651 load_buf
, image_buf
, image_len
,
652 CONFIG_SYS_BOOTM_LEN
, &load_end
);
654 err
= handle_decomp_error(os
.comp
, load_end
- load
,
655 CONFIG_SYS_BOOTM_LEN
, err
);
656 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE
);
659 /* We need the decompressed image size in the next steps */
660 images
->os
.image_len
= load_end
- load
;
662 flush_cache(flush_start
, ALIGN(load_end
, ARCH_DMA_MINALIGN
) - flush_start
);
664 debug(" kernel loaded at 0x%08lx, end = 0x%08lx\n", load
, load_end
);
665 bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED
);
667 no_overlap
= (os
.comp
== IH_COMP_NONE
&& load
== image_start
);
669 if (!no_overlap
&& load
< blob_end
&& load_end
> blob_start
) {
670 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
671 blob_start
, blob_end
);
672 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load
,
675 /* Check what type of image this is. */
676 if (images
->legacy_hdr_valid
) {
677 if (image_get_type(&images
->legacy_hdr_os_copy
)
679 puts("WARNING: legacy format multi component image overwritten\n");
680 return BOOTM_ERR_OVERLAP
;
682 puts("ERROR: new format image overwritten - must RESET the board to recover\n");
683 bootstage_error(BOOTSTAGE_ID_OVERWRITTEN
);
684 return BOOTM_ERR_RESET
;
688 lmb_reserve(&images
->lmb
, images
->os
.load
, (load_end
-
694 * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot
696 * Return: interrupt flag (0 if interrupts were disabled, non-zero if they were
699 ulong
bootm_disable_interrupts(void)
704 * We have reached the point of no return: we are going to
705 * overwrite all exception vector code, so we cannot easily
706 * recover from any failures any more...
708 iflag
= disable_interrupts();
709 #ifdef CONFIG_NETCONSOLE
710 /* Stop the ethernet stack if NetConsole could have left it up */
714 #if defined(CONFIG_CMD_USB)
716 * turn off USB to prevent the host controller from writing to the
717 * SDRAM while Linux is booting. This could happen (at least for OHCI
718 * controller), because the HCCA (Host Controller Communication Area)
719 * lies within the SDRAM and the host controller writes continously to
720 * this area (as busmaster!). The HccaFrameNumber is for example
721 * updated every 1 ms within the HCCA structure in SDRAM! For more
722 * details see the OpenHCI specification.
729 #define CONSOLE_ARG "console="
730 #define NULL_CONSOLE (CONSOLE_ARG "ttynull")
731 #define CONSOLE_ARG_SIZE sizeof(NULL_CONSOLE)
734 * fixup_silent_linux() - Handle silencing the linux boot if required
736 * This uses the silent_linux envvar to control whether to add/set a "console="
737 * parameter to the command line
739 * @buf: Buffer containing the string to process
740 * @maxlen: Maximum length of buffer
741 * Return: 0 if OK, -ENOSPC if @maxlen is too small
743 static int fixup_silent_linux(char *buf
, int maxlen
)
750 * Move the input string to the end of buffer. The output string will be
751 * built up at the start.
753 size
= strlen(buf
) + 1;
754 if (size
* 2 > maxlen
)
756 cmdline
= buf
+ maxlen
- size
;
757 memmove(cmdline
, buf
, size
);
759 * Only fix cmdline when requested. The environment variable can be:
761 * no - we never fixup
762 * yes - we always fixup
763 * unset - we rely on the console silent flag
765 want_silent
= env_get_yesno("silent_linux");
766 if (want_silent
== 0)
768 else if (want_silent
== -1 && !(gd
->flags
& GD_FLG_SILENT
))
771 debug("before silent fix-up: %s\n", cmdline
);
773 char *start
= strstr(cmdline
, CONSOLE_ARG
);
775 /* Check space for maximum possible new command line */
776 if (size
+ CONSOLE_ARG_SIZE
> maxlen
)
780 char *end
= strchr(start
, ' ');
783 start_bytes
= start
- cmdline
;
784 strncpy(buf
, cmdline
, start_bytes
);
785 strncpy(buf
+ start_bytes
, NULL_CONSOLE
, CONSOLE_ARG_SIZE
);
787 strcpy(buf
+ start_bytes
+ CONSOLE_ARG_SIZE
- 1, end
);
789 buf
[start_bytes
+ CONSOLE_ARG_SIZE
] = '\0';
791 sprintf(buf
, "%s %s", cmdline
, NULL_CONSOLE
);
793 if (buf
+ strlen(buf
) >= cmdline
)
796 if (maxlen
< CONSOLE_ARG_SIZE
)
798 strcpy(buf
, NULL_CONSOLE
);
800 debug("after silent fix-up: %s\n", buf
);
806 * process_subst() - Handle substitution of ${...} fields in the environment
808 * Handle variable substitution in the provided buffer
810 * @buf: Buffer containing the string to process
811 * @maxlen: Maximum length of buffer
812 * Return: 0 if OK, -ENOSPC if @maxlen is too small
814 static int process_subst(char *buf
, int maxlen
)
820 /* Move to end of buffer */
821 size
= strlen(buf
) + 1;
822 cmdline
= buf
+ maxlen
- size
;
823 if (buf
+ size
> cmdline
)
825 memmove(cmdline
, buf
, size
);
827 ret
= cli_simple_process_macros(cmdline
, buf
, cmdline
- buf
);
832 int bootm_process_cmdline(char *buf
, int maxlen
, int flags
)
836 /* Check config first to enable compiler to eliminate code */
837 if (IS_ENABLED(CONFIG_SILENT_CONSOLE
) &&
838 !IS_ENABLED(CONFIG_SILENT_U_BOOT_ONLY
) &&
839 (flags
& BOOTM_CL_SILENT
)) {
840 ret
= fixup_silent_linux(buf
, maxlen
);
842 return log_msg_ret("silent", ret
);
844 if (IS_ENABLED(CONFIG_BOOTARGS_SUBST
) && IS_ENABLED(CONFIG_CMDLINE
) &&
845 (flags
& BOOTM_CL_SUBST
)) {
846 ret
= process_subst(buf
, maxlen
);
848 return log_msg_ret("subst", ret
);
854 int bootm_process_cmdline_env(int flags
)
856 const int maxlen
= MAX_CMDLINE_SIZE
;
862 /* First check if any action is needed */
863 do_silent
= IS_ENABLED(CONFIG_SILENT_CONSOLE
) &&
864 !IS_ENABLED(CONFIG_SILENT_U_BOOT_ONLY
) && (flags
& BOOTM_CL_SILENT
);
865 if (!do_silent
&& !IS_ENABLED(CONFIG_BOOTARGS_SUBST
))
868 env
= env_get("bootargs");
869 if (env
&& strlen(env
) >= maxlen
)
871 buf
= malloc(maxlen
);
878 ret
= bootm_process_cmdline(buf
, maxlen
, flags
);
880 ret
= env_set("bootargs", buf
);
883 * If buf is "" and bootargs does not exist, this will produce
884 * an error trying to delete bootargs. Ignore it
891 return log_msg_ret("env", ret
);
896 int bootm_measure(struct bootm_headers
*images
)
900 /* Skip measurement if EFI is going to do it */
901 if (images
->os
.os
== IH_OS_EFI
&&
902 IS_ENABLED(CONFIG_EFI_TCG2_PROTOCOL
) &&
903 IS_ENABLED(CONFIG_BOOTM_EFI
))
906 if (IS_ENABLED(CONFIG_MEASURED_BOOT
)) {
907 struct tcg2_event_log elog
;
916 ign
= IS_ENABLED(CONFIG_MEASURE_IGNORE_LOG
);
917 ret
= tcg2_measurement_init(&dev
, &elog
, ign
);
921 image_buf
= map_sysmem(images
->os
.image_start
,
922 images
->os
.image_len
);
923 ret
= tcg2_measure_data(dev
, &elog
, 8, images
->os
.image_len
,
924 image_buf
, EV_COMPACT_HASH
,
925 strlen("linux") + 1, (u8
*)"linux");
929 rd_len
= images
->rd_end
- images
->rd_start
;
930 initrd_buf
= map_sysmem(images
->rd_start
, rd_len
);
931 ret
= tcg2_measure_data(dev
, &elog
, 9, rd_len
, initrd_buf
,
932 EV_COMPACT_HASH
, strlen("initrd") + 1,
937 if (IS_ENABLED(CONFIG_MEASURE_DEVICETREE
)) {
938 ret
= tcg2_measure_data(dev
, &elog
, 0, images
->ft_len
,
939 (u8
*)images
->ft_addr
,
947 s
= env_get("bootargs");
950 ret
= tcg2_measure_data(dev
, &elog
, 1, strlen(s
) + 1, (u8
*)s
,
951 EV_PLATFORM_CONFIG_FLAGS
,
952 strlen(s
) + 1, (u8
*)s
);
955 unmap_sysmem(initrd_buf
);
958 unmap_sysmem(image_buf
);
959 tcg2_measurement_term(dev
, &elog
, ret
!= 0);
966 * Execute selected states of the bootm command.
968 * Note the arguments to this state must be the first argument, Any 'bootm'
969 * or sub-command arguments must have already been taken.
971 * Note that if states contains more than one flag it MUST contain
972 * BOOTM_STATE_START, since this handles and consumes the command line args.
974 * Also note that aside from boot_os_fn functions and bootm_load_os no other
975 * functions we store the return value of in 'ret' may use a negative return
976 * value, without special handling.
978 * @param cmdtp Pointer to bootm command table entry
979 * @param flag Command flags (CMD_FLAG_...)
980 * @param argc Number of subcommand arguments (0 = no arguments)
981 * @param argv Arguments
982 * @param states Mask containing states to run (BOOTM_STATE_...)
983 * @param images Image header information
984 * @param boot_progress 1 to show boot progress, 0 to not do this
985 * Return: 0 if ok, something else on error. Some errors will cause this
986 * function to perform a reboot! If states contains BOOTM_STATE_OS_GO
987 * then the intent is to boot an OS, so this function will not return
988 * unless the image type is standalone.
990 int do_bootm_states(struct cmd_tbl
*cmdtp
, int flag
, int argc
,
991 char *const argv
[], int states
, struct bootm_headers
*images
,
996 int ret
= 0, need_boot_fn
;
998 images
->state
|= states
;
1001 * Work through the states and see how far we get. We stop on
1004 if (states
& BOOTM_STATE_START
)
1005 ret
= bootm_start();
1007 if (!ret
&& (states
& BOOTM_STATE_PRE_LOAD
))
1008 ret
= bootm_pre_load(argv
[0]);
1010 if (!ret
&& (states
& BOOTM_STATE_FINDOS
))
1011 ret
= bootm_find_os(cmdtp
->name
, argv
[0]);
1013 if (!ret
&& (states
& BOOTM_STATE_FINDOTHER
))
1014 ret
= bootm_find_other(cmdtp
, flag
, argc
, argv
);
1016 if (IS_ENABLED(CONFIG_MEASURED_BOOT
) && !ret
&&
1017 (states
& BOOTM_STATE_MEASURE
))
1018 bootm_measure(images
);
1021 if (!ret
&& (states
& BOOTM_STATE_LOADOS
)) {
1022 iflag
= bootm_disable_interrupts();
1023 ret
= bootm_load_os(images
, 0);
1024 if (ret
&& ret
!= BOOTM_ERR_OVERLAP
)
1026 else if (ret
== BOOTM_ERR_OVERLAP
)
1030 /* Relocate the ramdisk */
1031 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
1032 if (!ret
&& (states
& BOOTM_STATE_RAMDISK
)) {
1033 ulong rd_len
= images
->rd_end
- images
->rd_start
;
1035 ret
= boot_ramdisk_high(&images
->lmb
, images
->rd_start
,
1036 rd_len
, &images
->initrd_start
, &images
->initrd_end
);
1038 env_set_hex("initrd_start", images
->initrd_start
);
1039 env_set_hex("initrd_end", images
->initrd_end
);
1043 #if CONFIG_IS_ENABLED(OF_LIBFDT) && defined(CONFIG_LMB)
1044 if (!ret
&& (states
& BOOTM_STATE_FDT
)) {
1045 boot_fdt_add_mem_rsv_regions(&images
->lmb
, images
->ft_addr
);
1046 ret
= boot_relocate_fdt(&images
->lmb
, &images
->ft_addr
,
1051 /* From now on, we need the OS boot function */
1054 boot_fn
= bootm_os_get_boot_func(images
->os
.os
);
1055 need_boot_fn
= states
& (BOOTM_STATE_OS_CMDLINE
|
1056 BOOTM_STATE_OS_BD_T
| BOOTM_STATE_OS_PREP
|
1057 BOOTM_STATE_OS_FAKE_GO
| BOOTM_STATE_OS_GO
);
1058 if (boot_fn
== NULL
&& need_boot_fn
) {
1060 enable_interrupts();
1061 printf("ERROR: booting os '%s' (%d) is not supported\n",
1062 genimg_get_os_name(images
->os
.os
), images
->os
.os
);
1063 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS
);
1068 /* Call various other states that are not generally used */
1069 if (!ret
&& (states
& BOOTM_STATE_OS_CMDLINE
))
1070 ret
= boot_fn(BOOTM_STATE_OS_CMDLINE
, argc
, argv
, images
);
1071 if (!ret
&& (states
& BOOTM_STATE_OS_BD_T
))
1072 ret
= boot_fn(BOOTM_STATE_OS_BD_T
, argc
, argv
, images
);
1073 if (!ret
&& (states
& BOOTM_STATE_OS_PREP
)) {
1074 ret
= bootm_process_cmdline_env(images
->os
.os
== IH_OS_LINUX
);
1076 printf("Cmdline setup failed (err=%d)\n", ret
);
1077 ret
= CMD_RET_FAILURE
;
1080 ret
= boot_fn(BOOTM_STATE_OS_PREP
, argc
, argv
, images
);
1084 /* Pretend to run the OS, then run a user command */
1085 if (!ret
&& (states
& BOOTM_STATE_OS_FAKE_GO
)) {
1086 char *cmd_list
= env_get("fakegocmd");
1088 ret
= boot_selected_os(argc
, argv
, BOOTM_STATE_OS_FAKE_GO
,
1090 if (!ret
&& cmd_list
)
1091 ret
= run_command_list(cmd_list
, -1, flag
);
1095 /* Check for unsupported subcommand. */
1097 printf("subcommand failed (err=%d)\n", ret
);
1101 /* Now run the OS! We hope this doesn't return */
1102 if (!ret
&& (states
& BOOTM_STATE_OS_GO
))
1103 ret
= boot_selected_os(argc
, argv
, BOOTM_STATE_OS_GO
,
1106 /* Deal with any fallout */
1109 enable_interrupts();
1111 if (ret
== BOOTM_ERR_UNIMPLEMENTED
)
1112 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL
);
1113 else if (ret
== BOOTM_ERR_RESET
)
1114 do_reset(cmdtp
, flag
, argc
, argv
);
1119 int bootm_boot_start(ulong addr
, const char *cmdline
)
1121 static struct cmd_tbl cmd
= {"bootm"};
1123 char *argv
[] = {addr_str
, NULL
};
1128 * TODO(sjg@chromium.org): This uses the command-line interface, but
1129 * should not. To clean this up, the various bootm states need to be
1130 * passed an info structure instead of cmdline flags. Then this can
1131 * set up the required info and move through the states without needing
1134 states
= BOOTM_STATE_START
| BOOTM_STATE_FINDOS
| BOOTM_STATE_PRE_LOAD
|
1135 BOOTM_STATE_FINDOTHER
| BOOTM_STATE_LOADOS
|
1136 BOOTM_STATE_OS_PREP
| BOOTM_STATE_OS_FAKE_GO
|
1138 if (IS_ENABLED(CONFIG_SYS_BOOT_RAMDISK_HIGH
))
1139 states
|= BOOTM_STATE_RAMDISK
;
1140 if (IS_ENABLED(CONFIG_PPC
) || IS_ENABLED(CONFIG_MIPS
))
1141 states
|= BOOTM_STATE_OS_CMDLINE
;
1142 images
.state
|= states
;
1144 snprintf(addr_str
, sizeof(addr_str
), "%lx", addr
);
1146 ret
= env_set("bootargs", cmdline
);
1148 printf("Failed to set cmdline\n");
1151 ret
= do_bootm_states(&cmd
, 0, 1, argv
, states
, &images
, 1);
1157 * switch_to_non_secure_mode() - switch to non-secure mode
1159 * This routine is overridden by architectures requiring this feature.
1161 void __weak
switch_to_non_secure_mode(void)
1165 #else /* USE_HOSTCC */
1167 #if defined(CONFIG_FIT_SIGNATURE)
1168 static int bootm_host_load_image(const void *fit
, int req_image_type
,
1171 const char *fit_uname_config
= NULL
;
1173 struct bootm_headers images
;
1175 ulong load_end
, buf_size
;
1181 fit_uname_config
= fdt_get_name(fit
, cfg_noffset
, NULL
);
1182 memset(&images
, '\0', sizeof(images
));
1184 noffset
= fit_image_load(&images
, (ulong
)fit
,
1185 NULL
, &fit_uname_config
,
1186 IH_ARCH_DEFAULT
, req_image_type
, -1,
1187 FIT_LOAD_IGNORED
, &data
, &len
);
1190 if (fit_image_get_type(fit
, noffset
, &image_type
)) {
1191 puts("Can't get image type!\n");
1195 if (fit_image_get_comp(fit
, noffset
, &image_comp
))
1196 image_comp
= IH_COMP_NONE
;
1198 /* Allow the image to expand by a factor of 4, should be safe */
1199 buf_size
= (1 << 20) + len
* 4;
1200 load_buf
= malloc(buf_size
);
1201 ret
= image_decomp(image_comp
, 0, data
, image_type
, load_buf
,
1202 (void *)data
, len
, buf_size
, &load_end
);
1206 ret
= handle_decomp_error(image_comp
, load_end
- 0, buf_size
, ret
);
1207 if (ret
!= BOOTM_ERR_UNIMPLEMENTED
)
1214 int bootm_host_load_images(const void *fit
, int cfg_noffset
)
1216 static uint8_t image_types
[] = {
1224 for (i
= 0; i
< ARRAY_SIZE(image_types
); i
++) {
1227 ret
= bootm_host_load_image(fit
, image_types
[i
], cfg_noffset
);
1228 if (!err
&& ret
&& ret
!= -ENOENT
)
1232 /* Return the first error we found */
1237 #endif /* ndef USE_HOSTCC */