1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2000-2009
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 */
6
7 #ifndef USE_HOSTCC
8 #include <common.h>
9 #include <bootstage.h>
10 #include <bzlib.h>
11 #include <errno.h>
12 #include <fdt_support.h>
13 #include <lmb.h>
14 #include <malloc.h>
15 #include <mapmem.h>
16 #include <asm/io.h>
17 #include <linux/lzo.h>
18 #include <lzma/LzmaTypes.h>
19 #include <lzma/LzmaDec.h>
20 #include <lzma/LzmaTools.h>
21 #if defined(CONFIG_CMD_USB)
22 #include <usb.h>
23 #endif
24 #else
25 #include "mkimage.h"
26 #endif
27
28 #include <command.h>
29 #include <bootm.h>
30 #include <image.h>
31
32 #ifndef CONFIG_SYS_BOOTM_LEN
33 /* use 8MByte as default max gunzip size */
34 #define CONFIG_SYS_BOOTM_LEN 0x800000
35 #endif
36
37 #define IH_INITRD_ARCH IH_ARCH_DEFAULT
38
39 #ifndef USE_HOSTCC
40
41 DECLARE_GLOBAL_DATA_PTR;
42
43 bootm_headers_t images; /* pointers to os/initrd/fdt images */
44
45 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
46 char * const argv[], bootm_headers_t *images,
47 ulong *os_data, ulong *os_len);
48
board_quiesce_devices(void)49 __weak void board_quiesce_devices(void)
50 {
51 }
52
53 #ifdef CONFIG_LMB
boot_start_lmb(bootm_headers_t * images)54 static void boot_start_lmb(bootm_headers_t *images)
55 {
56 ulong mem_start;
57 phys_size_t mem_size;
58
59 lmb_init(&images->lmb);
60
61 mem_start = env_get_bootm_low();
62 mem_size = env_get_bootm_size();
63
64 lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size);
65
66 arch_lmb_reserve(&images->lmb);
67 board_lmb_reserve(&images->lmb);
68 }
69 #else
70 #define lmb_reserve(lmb, base, size)
boot_start_lmb(bootm_headers_t * images)71 static inline void boot_start_lmb(bootm_headers_t *images) { }
72 #endif
73
bootm_start(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])74 static int bootm_start(cmd_tbl_t *cmdtp, int flag, int argc,
75 char * const argv[])
76 {
77 memset((void *)&images, 0, sizeof(images));
78 images.verify = env_get_yesno("verify");
79
80 boot_start_lmb(&images);
81
82 bootstage_mark_name(BOOTSTAGE_ID_BOOTM_START, "bootm_start");
83 images.state = BOOTM_STATE_START;
84
85 return 0;
86 }
87
bootm_find_os(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])88 static int bootm_find_os(cmd_tbl_t *cmdtp, int flag, int argc,
89 char * const argv[])
90 {
91 const void *os_hdr;
92 bool ep_found = false;
93 int ret;
94
95 /* get kernel image header, start address and length */
96 os_hdr = boot_get_kernel(cmdtp, flag, argc, argv,
97 &images, &images.os.image_start, &images.os.image_len);
98 if (images.os.image_len == 0) {
99 puts("ERROR: can't get kernel image!\n");
100 return 1;
101 }
102
103 /* get image parameters */
104 switch (genimg_get_format(os_hdr)) {
105 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
106 case IMAGE_FORMAT_LEGACY:
107 images.os.type = image_get_type(os_hdr);
108 images.os.comp = image_get_comp(os_hdr);
109 images.os.os = image_get_os(os_hdr);
110
111 images.os.end = image_get_image_end(os_hdr);
112 images.os.load = image_get_load(os_hdr);
113 images.os.arch = image_get_arch(os_hdr);
114 break;
115 #endif
116 #if IMAGE_ENABLE_FIT
117 case IMAGE_FORMAT_FIT:
118 if (fit_image_get_type(images.fit_hdr_os,
119 images.fit_noffset_os,
120 &images.os.type)) {
121 puts("Can't get image type!\n");
122 bootstage_error(BOOTSTAGE_ID_FIT_TYPE);
123 return 1;
124 }
125
126 if (fit_image_get_comp(images.fit_hdr_os,
127 images.fit_noffset_os,
128 &images.os.comp)) {
129 puts("Can't get image compression!\n");
130 bootstage_error(BOOTSTAGE_ID_FIT_COMPRESSION);
131 return 1;
132 }
133
134 if (fit_image_get_os(images.fit_hdr_os, images.fit_noffset_os,
135 &images.os.os)) {
136 puts("Can't get image OS!\n");
137 bootstage_error(BOOTSTAGE_ID_FIT_OS);
138 return 1;
139 }
140
141 if (fit_image_get_arch(images.fit_hdr_os,
142 images.fit_noffset_os,
143 &images.os.arch)) {
144 puts("Can't get image ARCH!\n");
145 return 1;
146 }
147
148 images.os.end = fit_get_end(images.fit_hdr_os);
149
150 if (fit_image_get_load(images.fit_hdr_os, images.fit_noffset_os,
151 &images.os.load)) {
152 puts("Can't get image load address!\n");
153 bootstage_error(BOOTSTAGE_ID_FIT_LOADADDR);
154 return 1;
155 }
156 break;
157 #endif
158 #ifdef CONFIG_ANDROID_BOOT_IMAGE
159 case IMAGE_FORMAT_ANDROID:
160 images.os.type = IH_TYPE_KERNEL;
161 images.os.comp = IH_COMP_NONE;
162 images.os.os = IH_OS_LINUX;
163
164 images.os.end = android_image_get_end(os_hdr);
165 images.os.load = android_image_get_kload(os_hdr);
166 images.ep = images.os.load;
167 ep_found = true;
168 break;
169 #endif
170 default:
171 puts("ERROR: unknown image format type!\n");
172 return 1;
173 }
174
175 /* If we have a valid setup.bin, we will use that for entry (x86) */
176 if (images.os.arch == IH_ARCH_I386 ||
177 images.os.arch == IH_ARCH_X86_64) {
178 ulong len;
179
180 ret = boot_get_setup(&images, IH_ARCH_I386, &images.ep, &len);
181 if (ret < 0 && ret != -ENOENT) {
182 puts("Could not find a valid setup.bin for x86\n");
183 return 1;
184 }
185 /* Kernel entry point is the setup.bin */
186 } else if (images.legacy_hdr_valid) {
187 images.ep = image_get_ep(&images.legacy_hdr_os_copy);
188 #if IMAGE_ENABLE_FIT
189 } else if (images.fit_uname_os) {
190 int ret;
191
192 ret = fit_image_get_entry(images.fit_hdr_os,
193 images.fit_noffset_os, &images.ep);
194 if (ret) {
195 puts("Can't get entry point property!\n");
196 return 1;
197 }
198 #endif
199 } else if (!ep_found) {
200 puts("Could not find kernel entry point!\n");
201 return 1;
202 }
203
204 if (images.os.type == IH_TYPE_KERNEL_NOLOAD) {
205 if (CONFIG_IS_ENABLED(CMD_BOOTI) &&
206 images.os.arch == IH_ARCH_ARM64) {
207 ulong image_addr;
208 ulong image_size;
209
210 ret = booti_setup(images.os.image_start, &image_addr,
211 &image_size, true);
212 if (ret != 0)
213 return 1;
214
215 images.os.type = IH_TYPE_KERNEL;
216 images.os.load = image_addr;
217 images.ep = image_addr;
218 } else {
219 images.os.load = images.os.image_start;
220 images.ep += images.os.image_start;
221 }
222 }
223
224 images.os.start = map_to_sysmem(os_hdr);
225
226 return 0;
227 }
228
229 /**
230 * bootm_find_images - wrapper to find and locate various images
231 * @flag: Ignored Argument
232 * @argc: command argument count
233 * @argv: command argument list
234 *
235 * boot_find_images() will attempt to load an available ramdisk,
236 * flattened device tree, as well as specifically marked
237 * "loadable" images (loadables are FIT only)
238 *
239 * Note: bootm_find_images will skip an image if it is not found
240 *
241 * @return:
242 * 0, if all existing images were loaded correctly
243 * 1, if an image is found but corrupted, or invalid
244 */
bootm_find_images(int flag,int argc,char * const argv[])245 int bootm_find_images(int flag, int argc, char * const argv[])
246 {
247 int ret;
248
249 /* find ramdisk */
250 ret = boot_get_ramdisk(argc, argv, &images, IH_INITRD_ARCH,
251 &images.rd_start, &images.rd_end);
252 if (ret) {
253 puts("Ramdisk image is corrupt or invalid\n");
254 return 1;
255 }
256
257 #if IMAGE_ENABLE_OF_LIBFDT
258 /* find flattened device tree */
259 ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, &images,
260 &images.ft_addr, &images.ft_len);
261 if (ret) {
262 puts("Could not find a valid device tree\n");
263 return 1;
264 }
265 set_working_fdt_addr((ulong)images.ft_addr);
266 #endif
267
268 #if IMAGE_ENABLE_FIT
269 #if defined(CONFIG_FPGA)
270 /* find bitstreams */
271 ret = boot_get_fpga(argc, argv, &images, IH_ARCH_DEFAULT,
272 NULL, NULL);
273 if (ret) {
274 printf("FPGA image is corrupted or invalid\n");
275 return 1;
276 }
277 #endif
278
279 /* find all of the loadables */
280 ret = boot_get_loadable(argc, argv, &images, IH_ARCH_DEFAULT,
281 NULL, NULL);
282 if (ret) {
283 printf("Loadable(s) is corrupt or invalid\n");
284 return 1;
285 }
286 #endif
287
288 return 0;
289 }
290
bootm_find_other(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])291 static int bootm_find_other(cmd_tbl_t *cmdtp, int flag, int argc,
292 char * const argv[])
293 {
294 if (((images.os.type == IH_TYPE_KERNEL) ||
295 (images.os.type == IH_TYPE_KERNEL_NOLOAD) ||
296 (images.os.type == IH_TYPE_MULTI)) &&
297 (images.os.os == IH_OS_LINUX ||
298 images.os.os == IH_OS_VXWORKS))
299 return bootm_find_images(flag, argc, argv);
300
301 return 0;
302 }
303 #endif /* USE_HOSTC */
304
305 /**
306 * print_decomp_msg() - Print a suitable decompression/loading message
307 *
308 * @type: OS type (IH_OS_...)
309 * @comp_type: Compression type being used (IH_COMP_...)
310 * @is_xip: true if the load address matches the image start
311 */
print_decomp_msg(int comp_type,int type,bool is_xip)312 static void print_decomp_msg(int comp_type, int type, bool is_xip)
313 {
314 const char *name = genimg_get_type_name(type);
315
316 if (comp_type == IH_COMP_NONE)
317 printf(" %s %s ... ", is_xip ? "XIP" : "Loading", name);
318 else
319 printf(" Uncompressing %s ... ", name);
320 }
321
322 /**
323 * handle_decomp_error() - display a decompression error
324 *
325 * This function tries to produce a useful message. In the case where the
326 * uncompressed size is the same as the available space, we can assume that
327 * the image is too large for the buffer.
328 *
329 * @comp_type: Compression type being used (IH_COMP_...)
330 * @uncomp_size: Number of bytes uncompressed
331 * @unc_len: Amount of space available for decompression
332 * @ret: Error code to report
333 * @return BOOTM_ERR_RESET, indicating that the board must be reset
334 */
handle_decomp_error(int comp_type,size_t uncomp_size,size_t unc_len,int ret)335 static int handle_decomp_error(int comp_type, size_t uncomp_size,
336 size_t unc_len, int ret)
337 {
338 const char *name = genimg_get_comp_name(comp_type);
339
340 if (uncomp_size >= unc_len)
341 printf("Image too large: increase CONFIG_SYS_BOOTM_LEN\n");
342 else
343 printf("%s: uncompress error %d\n", name, ret);
344
345 /*
346 * The decompression routines are now safe, so will not write beyond
347 * their bounds. Probably it is not necessary to reset, but maintain
348 * the current behaviour for now.
349 */
350 printf("Must RESET board to recover\n");
351 #ifndef USE_HOSTCC
352 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
353 #endif
354
355 return BOOTM_ERR_RESET;
356 }
357
bootm_decomp_image(int comp,ulong load,ulong image_start,int type,void * load_buf,void * image_buf,ulong image_len,uint unc_len,ulong * load_end)358 int bootm_decomp_image(int comp, ulong load, ulong image_start, int type,
359 void *load_buf, void *image_buf, ulong image_len,
360 uint unc_len, ulong *load_end)
361 {
362 int ret = 0;
363
364 *load_end = load;
365 print_decomp_msg(comp, type, load == image_start);
366
367 /*
368 * Load the image to the right place, decompressing if needed. After
369 * this, image_len will be set to the number of uncompressed bytes
370 * loaded, ret will be non-zero on error.
371 */
372 switch (comp) {
373 case IH_COMP_NONE:
374 if (load == image_start)
375 break;
376 if (image_len <= unc_len)
377 memmove_wd(load_buf, image_buf, image_len, CHUNKSZ);
378 else
379 ret = 1;
380 break;
381 #ifdef CONFIG_GZIP
382 case IH_COMP_GZIP: {
383 ret = gunzip(load_buf, unc_len, image_buf, &image_len);
384 break;
385 }
386 #endif /* CONFIG_GZIP */
387 #ifdef CONFIG_BZIP2
388 case IH_COMP_BZIP2: {
389 uint size = unc_len;
390
391 /*
392 * If we've got less than 4 MB of malloc() space,
393 * use slower decompression algorithm which requires
394 * at most 2300 KB of memory.
395 */
396 ret = BZ2_bzBuffToBuffDecompress(load_buf, &size,
397 image_buf, image_len,
398 CONFIG_SYS_MALLOC_LEN < (4096 * 1024), 0);
399 image_len = size;
400 break;
401 }
402 #endif /* CONFIG_BZIP2 */
403 #ifdef CONFIG_LZMA
404 case IH_COMP_LZMA: {
405 SizeT lzma_len = unc_len;
406
407 ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
408 image_buf, image_len);
409 image_len = lzma_len;
410 break;
411 }
412 #endif /* CONFIG_LZMA */
413 #ifdef CONFIG_LZO
414 case IH_COMP_LZO: {
415 size_t size = unc_len;
416
417 ret = lzop_decompress(image_buf, image_len, load_buf, &size);
418 image_len = size;
419 break;
420 }
421 #endif /* CONFIG_LZO */
422 #ifdef CONFIG_LZ4
423 case IH_COMP_LZ4: {
424 size_t size = unc_len;
425
426 ret = ulz4fn(image_buf, image_len, load_buf, &size);
427 image_len = size;
428 break;
429 }
430 #endif /* CONFIG_LZ4 */
431 default:
432 printf("Unimplemented compression type %d\n", comp);
433 return BOOTM_ERR_UNIMPLEMENTED;
434 }
435
436 if (ret)
437 return handle_decomp_error(comp, image_len, unc_len, ret);
438 *load_end = load + image_len;
439
440 puts("OK\n");
441
442 return 0;
443 }
444
445 #ifndef USE_HOSTCC
bootm_load_os(bootm_headers_t * images,int boot_progress)446 static int bootm_load_os(bootm_headers_t *images, int boot_progress)
447 {
448 image_info_t os = images->os;
449 ulong load = os.load;
450 ulong load_end;
451 ulong blob_start = os.start;
452 ulong blob_end = os.end;
453 ulong image_start = os.image_start;
454 ulong image_len = os.image_len;
455 ulong flush_start = ALIGN_DOWN(load, ARCH_DMA_MINALIGN);
456 ulong flush_len;
457 bool no_overlap;
458 void *load_buf, *image_buf;
459 int err;
460
461 load_buf = map_sysmem(load, 0);
462 image_buf = map_sysmem(os.image_start, image_len);
463 err = bootm_decomp_image(os.comp, load, os.image_start, os.type,
464 load_buf, image_buf, image_len,
465 CONFIG_SYS_BOOTM_LEN, &load_end);
466 if (err) {
467 bootstage_error(BOOTSTAGE_ID_DECOMP_IMAGE);
468 return err;
469 }
470
471 flush_len = load_end - load;
472 if (flush_start < load)
473 flush_len += load - flush_start;
474
475 flush_cache(flush_start, ALIGN(flush_len, ARCH_DMA_MINALIGN));
476
477 debug(" kernel loaded at 0x%08lx, end = 0x%08lx\n", load, load_end);
478 bootstage_mark(BOOTSTAGE_ID_KERNEL_LOADED);
479
480 no_overlap = (os.comp == IH_COMP_NONE && load == image_start);
481
482 if (!no_overlap && load < blob_end && load_end > blob_start) {
483 debug("images.os.start = 0x%lX, images.os.end = 0x%lx\n",
484 blob_start, blob_end);
485 debug("images.os.load = 0x%lx, load_end = 0x%lx\n", load,
486 load_end);
487
488 /* Check what type of image this is. */
489 if (images->legacy_hdr_valid) {
490 if (image_get_type(&images->legacy_hdr_os_copy)
491 == IH_TYPE_MULTI)
492 puts("WARNING: legacy format multi component image overwritten\n");
493 return BOOTM_ERR_OVERLAP;
494 } else {
495 puts("ERROR: new format image overwritten - must RESET the board to recover\n");
496 bootstage_error(BOOTSTAGE_ID_OVERWRITTEN);
497 return BOOTM_ERR_RESET;
498 }
499 }
500
501 lmb_reserve(&images->lmb, images->os.load, (load_end -
502 images->os.load));
503 return 0;
504 }
505
506 /**
507 * bootm_disable_interrupts() - Disable interrupts in preparation for load/boot
508 *
509 * @return interrupt flag (0 if interrupts were disabled, non-zero if they were
510 * enabled)
511 */
bootm_disable_interrupts(void)512 ulong bootm_disable_interrupts(void)
513 {
514 ulong iflag;
515
516 /*
517 * We have reached the point of no return: we are going to
518 * overwrite all exception vector code, so we cannot easily
519 * recover from any failures any more...
520 */
521 iflag = disable_interrupts();
522 #ifdef CONFIG_NETCONSOLE
523 /* Stop the ethernet stack if NetConsole could have left it up */
524 eth_halt();
525 # ifndef CONFIG_DM_ETH
526 eth_unregister(eth_get_dev());
527 # endif
528 #endif
529
530 #if defined(CONFIG_CMD_USB)
531 /*
532 * turn off USB to prevent the host controller from writing to the
533 * SDRAM while Linux is booting. This could happen (at least for OHCI
534 * controller), because the HCCA (Host Controller Communication Area)
535 * lies within the SDRAM and the host controller writes continously to
536 * this area (as busmaster!). The HccaFrameNumber is for example
537 * updated every 1 ms within the HCCA structure in SDRAM! For more
538 * details see the OpenHCI specification.
539 */
540 usb_stop();
541 #endif
542 return iflag;
543 }
544
545 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
546
547 #define CONSOLE_ARG "console="
548 #define CONSOLE_ARG_LEN (sizeof(CONSOLE_ARG) - 1)
549
fixup_silent_linux(void)550 static void fixup_silent_linux(void)
551 {
552 char *buf;
553 const char *env_val;
554 char *cmdline = env_get("bootargs");
555 int want_silent;
556
557 /*
558 * Only fix cmdline when requested. The environment variable can be:
559 *
560 * no - we never fixup
561 * yes - we always fixup
562 * unset - we rely on the console silent flag
563 */
564 want_silent = env_get_yesno("silent_linux");
565 if (want_silent == 0)
566 return;
567 else if (want_silent == -1 && !(gd->flags & GD_FLG_SILENT))
568 return;
569
570 debug("before silent fix-up: %s\n", cmdline);
571 if (cmdline && (cmdline[0] != '\0')) {
572 char *start = strstr(cmdline, CONSOLE_ARG);
573
574 /* Allocate space for maximum possible new command line */
575 buf = malloc(strlen(cmdline) + 1 + CONSOLE_ARG_LEN + 1);
576 if (!buf) {
577 debug("%s: out of memory\n", __func__);
578 return;
579 }
580
581 if (start) {
582 char *end = strchr(start, ' ');
583 int num_start_bytes = start - cmdline + CONSOLE_ARG_LEN;
584
585 strncpy(buf, cmdline, num_start_bytes);
586 if (end)
587 strcpy(buf + num_start_bytes, end);
588 else
589 buf[num_start_bytes] = '\0';
590 } else {
591 sprintf(buf, "%s %s", cmdline, CONSOLE_ARG);
592 }
593 env_val = buf;
594 } else {
595 buf = NULL;
596 env_val = CONSOLE_ARG;
597 }
598
599 env_set("bootargs", env_val);
600 debug("after silent fix-up: %s\n", env_val);
601 free(buf);
602 }
603 #endif /* CONFIG_SILENT_CONSOLE */
604
605 /**
606 * Execute selected states of the bootm command.
607 *
608 * Note the arguments to this state must be the first argument, Any 'bootm'
609 * or sub-command arguments must have already been taken.
610 *
611 * Note that if states contains more than one flag it MUST contain
612 * BOOTM_STATE_START, since this handles and consumes the command line args.
613 *
614 * Also note that aside from boot_os_fn functions and bootm_load_os no other
615 * functions we store the return value of in 'ret' may use a negative return
616 * value, without special handling.
617 *
618 * @param cmdtp Pointer to bootm command table entry
619 * @param flag Command flags (CMD_FLAG_...)
620 * @param argc Number of subcommand arguments (0 = no arguments)
621 * @param argv Arguments
622 * @param states Mask containing states to run (BOOTM_STATE_...)
623 * @param images Image header information
624 * @param boot_progress 1 to show boot progress, 0 to not do this
625 * @return 0 if ok, something else on error. Some errors will cause this
626 * function to perform a reboot! If states contains BOOTM_STATE_OS_GO
627 * then the intent is to boot an OS, so this function will not return
628 * unless the image type is standalone.
629 */
do_bootm_states(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[],int states,bootm_headers_t * images,int boot_progress)630 int do_bootm_states(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[],
631 int states, bootm_headers_t *images, int boot_progress)
632 {
633 boot_os_fn *boot_fn;
634 ulong iflag = 0;
635 int ret = 0, need_boot_fn;
636
637 images->state |= states;
638
639 /*
640 * Work through the states and see how far we get. We stop on
641 * any error.
642 */
643 if (states & BOOTM_STATE_START)
644 ret = bootm_start(cmdtp, flag, argc, argv);
645
646 if (!ret && (states & BOOTM_STATE_FINDOS))
647 ret = bootm_find_os(cmdtp, flag, argc, argv);
648
649 if (!ret && (states & BOOTM_STATE_FINDOTHER))
650 ret = bootm_find_other(cmdtp, flag, argc, argv);
651
652 /* Load the OS */
653 if (!ret && (states & BOOTM_STATE_LOADOS)) {
654 iflag = bootm_disable_interrupts();
655 ret = bootm_load_os(images, 0);
656 if (ret && ret != BOOTM_ERR_OVERLAP)
657 goto err;
658 else if (ret == BOOTM_ERR_OVERLAP)
659 ret = 0;
660 }
661
662 /* Relocate the ramdisk */
663 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
664 if (!ret && (states & BOOTM_STATE_RAMDISK)) {
665 ulong rd_len = images->rd_end - images->rd_start;
666
667 ret = boot_ramdisk_high(&images->lmb, images->rd_start,
668 rd_len, &images->initrd_start, &images->initrd_end);
669 if (!ret) {
670 env_set_hex("initrd_start", images->initrd_start);
671 env_set_hex("initrd_end", images->initrd_end);
672 }
673 }
674 #endif
675 #if IMAGE_ENABLE_OF_LIBFDT && defined(CONFIG_LMB)
676 if (!ret && (states & BOOTM_STATE_FDT)) {
677 boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr);
678 ret = boot_relocate_fdt(&images->lmb, &images->ft_addr,
679 &images->ft_len);
680 }
681 #endif
682
683 /* From now on, we need the OS boot function */
684 if (ret)
685 return ret;
686 boot_fn = bootm_os_get_boot_func(images->os.os);
687 need_boot_fn = states & (BOOTM_STATE_OS_CMDLINE |
688 BOOTM_STATE_OS_BD_T | BOOTM_STATE_OS_PREP |
689 BOOTM_STATE_OS_FAKE_GO | BOOTM_STATE_OS_GO);
690 if (boot_fn == NULL && need_boot_fn) {
691 if (iflag)
692 enable_interrupts();
693 printf("ERROR: booting os '%s' (%d) is not supported\n",
694 genimg_get_os_name(images->os.os), images->os.os);
695 bootstage_error(BOOTSTAGE_ID_CHECK_BOOT_OS);
696 return 1;
697 }
698
699
700 /* Call various other states that are not generally used */
701 if (!ret && (states & BOOTM_STATE_OS_CMDLINE))
702 ret = boot_fn(BOOTM_STATE_OS_CMDLINE, argc, argv, images);
703 if (!ret && (states & BOOTM_STATE_OS_BD_T))
704 ret = boot_fn(BOOTM_STATE_OS_BD_T, argc, argv, images);
705 if (!ret && (states & BOOTM_STATE_OS_PREP)) {
706 #if defined(CONFIG_SILENT_CONSOLE) && !defined(CONFIG_SILENT_U_BOOT_ONLY)
707 if (images->os.os == IH_OS_LINUX)
708 fixup_silent_linux();
709 #endif
710 ret = boot_fn(BOOTM_STATE_OS_PREP, argc, argv, images);
711 }
712
713 #ifdef CONFIG_TRACE
714 /* Pretend to run the OS, then run a user command */
715 if (!ret && (states & BOOTM_STATE_OS_FAKE_GO)) {
716 char *cmd_list = env_get("fakegocmd");
717
718 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_FAKE_GO,
719 images, boot_fn);
720 if (!ret && cmd_list)
721 ret = run_command_list(cmd_list, -1, flag);
722 }
723 #endif
724
725 /* Check for unsupported subcommand. */
726 if (ret) {
727 puts("subcommand not supported\n");
728 return ret;
729 }
730
731 /* Now run the OS! We hope this doesn't return */
732 if (!ret && (states & BOOTM_STATE_OS_GO))
733 ret = boot_selected_os(argc, argv, BOOTM_STATE_OS_GO,
734 images, boot_fn);
735
736 /* Deal with any fallout */
737 err:
738 if (iflag)
739 enable_interrupts();
740
741 if (ret == BOOTM_ERR_UNIMPLEMENTED)
742 bootstage_error(BOOTSTAGE_ID_DECOMP_UNIMPL);
743 else if (ret == BOOTM_ERR_RESET)
744 do_reset(cmdtp, flag, argc, argv);
745
746 return ret;
747 }
748
749 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
750 /**
751 * image_get_kernel - verify legacy format kernel image
752 * @img_addr: in RAM address of the legacy format image to be verified
753 * @verify: data CRC verification flag
754 *
755 * image_get_kernel() verifies legacy image integrity and returns pointer to
756 * legacy image header if image verification was completed successfully.
757 *
758 * returns:
759 * pointer to a legacy image header if valid image was found
760 * otherwise return NULL
761 */
image_get_kernel(ulong img_addr,int verify)762 static image_header_t *image_get_kernel(ulong img_addr, int verify)
763 {
764 image_header_t *hdr = (image_header_t *)img_addr;
765
766 if (!image_check_magic(hdr)) {
767 puts("Bad Magic Number\n");
768 bootstage_error(BOOTSTAGE_ID_CHECK_MAGIC);
769 return NULL;
770 }
771 bootstage_mark(BOOTSTAGE_ID_CHECK_HEADER);
772
773 if (!image_check_hcrc(hdr)) {
774 puts("Bad Header Checksum\n");
775 bootstage_error(BOOTSTAGE_ID_CHECK_HEADER);
776 return NULL;
777 }
778
779 bootstage_mark(BOOTSTAGE_ID_CHECK_CHECKSUM);
780 image_print_contents(hdr);
781
782 if (verify) {
783 puts(" Verifying Checksum ... ");
784 if (!image_check_dcrc(hdr)) {
785 printf("Bad Data CRC\n");
786 bootstage_error(BOOTSTAGE_ID_CHECK_CHECKSUM);
787 return NULL;
788 }
789 puts("OK\n");
790 }
791 bootstage_mark(BOOTSTAGE_ID_CHECK_ARCH);
792
793 if (!image_check_target_arch(hdr)) {
794 printf("Unsupported Architecture 0x%x\n", image_get_arch(hdr));
795 bootstage_error(BOOTSTAGE_ID_CHECK_ARCH);
796 return NULL;
797 }
798 return hdr;
799 }
800 #endif
801
802 /**
803 * boot_get_kernel - find kernel image
804 * @os_data: pointer to a ulong variable, will hold os data start address
805 * @os_len: pointer to a ulong variable, will hold os data length
806 *
807 * boot_get_kernel() tries to find a kernel image, verifies its integrity
808 * and locates kernel data.
809 *
810 * returns:
811 * pointer to image header if valid image was found, plus kernel start
812 * address and length, otherwise NULL
813 */
boot_get_kernel(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[],bootm_headers_t * images,ulong * os_data,ulong * os_len)814 static const void *boot_get_kernel(cmd_tbl_t *cmdtp, int flag, int argc,
815 char * const argv[], bootm_headers_t *images,
816 ulong *os_data, ulong *os_len)
817 {
818 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
819 image_header_t *hdr;
820 #endif
821 ulong img_addr;
822 const void *buf;
823 const char *fit_uname_config = NULL;
824 const char *fit_uname_kernel = NULL;
825 #if IMAGE_ENABLE_FIT
826 int os_noffset;
827 #endif
828
829 img_addr = genimg_get_kernel_addr_fit(argc < 1 ? NULL : argv[0],
830 &fit_uname_config,
831 &fit_uname_kernel);
832
833 bootstage_mark(BOOTSTAGE_ID_CHECK_MAGIC);
834
835 /* check image type, for FIT images get FIT kernel node */
836 *os_data = *os_len = 0;
837 buf = map_sysmem(img_addr, 0);
838 switch (genimg_get_format(buf)) {
839 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
840 case IMAGE_FORMAT_LEGACY:
841 printf("## Booting kernel from Legacy Image at %08lx ...\n",
842 img_addr);
843 hdr = image_get_kernel(img_addr, images->verify);
844 if (!hdr)
845 return NULL;
846 bootstage_mark(BOOTSTAGE_ID_CHECK_IMAGETYPE);
847
848 /* get os_data and os_len */
849 switch (image_get_type(hdr)) {
850 case IH_TYPE_KERNEL:
851 case IH_TYPE_KERNEL_NOLOAD:
852 *os_data = image_get_data(hdr);
853 *os_len = image_get_data_size(hdr);
854 break;
855 case IH_TYPE_MULTI:
856 image_multi_getimg(hdr, 0, os_data, os_len);
857 break;
858 case IH_TYPE_STANDALONE:
859 *os_data = image_get_data(hdr);
860 *os_len = image_get_data_size(hdr);
861 break;
862 default:
863 printf("Wrong Image Type for %s command\n",
864 cmdtp->name);
865 bootstage_error(BOOTSTAGE_ID_CHECK_IMAGETYPE);
866 return NULL;
867 }
868
869 /*
870 * copy image header to allow for image overwrites during
871 * kernel decompression.
872 */
873 memmove(&images->legacy_hdr_os_copy, hdr,
874 sizeof(image_header_t));
875
876 /* save pointer to image header */
877 images->legacy_hdr_os = hdr;
878
879 images->legacy_hdr_valid = 1;
880 bootstage_mark(BOOTSTAGE_ID_DECOMP_IMAGE);
881 break;
882 #endif
883 #if IMAGE_ENABLE_FIT
884 case IMAGE_FORMAT_FIT:
885 os_noffset = fit_image_load(images, img_addr,
886 &fit_uname_kernel, &fit_uname_config,
887 IH_ARCH_DEFAULT, IH_TYPE_KERNEL,
888 BOOTSTAGE_ID_FIT_KERNEL_START,
889 FIT_LOAD_IGNORED, os_data, os_len);
890 if (os_noffset < 0)
891 return NULL;
892
893 images->fit_hdr_os = map_sysmem(img_addr, 0);
894 images->fit_uname_os = fit_uname_kernel;
895 images->fit_uname_cfg = fit_uname_config;
896 images->fit_noffset_os = os_noffset;
897 break;
898 #endif
899 #ifdef CONFIG_ANDROID_BOOT_IMAGE
900 case IMAGE_FORMAT_ANDROID:
901 printf("## Booting Android Image at 0x%08lx ...\n", img_addr);
902 if (android_image_get_kernel(buf, images->verify,
903 os_data, os_len))
904 return NULL;
905 break;
906 #endif
907 default:
908 printf("Wrong Image Format for %s command\n", cmdtp->name);
909 bootstage_error(BOOTSTAGE_ID_FIT_KERNEL_INFO);
910 return NULL;
911 }
912
913 debug(" kernel data at 0x%08lx, len = 0x%08lx (%ld)\n",
914 *os_data, *os_len, *os_len);
915
916 return buf;
917 }
918 #else /* USE_HOSTCC */
919
memmove_wd(void * to,void * from,size_t len,ulong chunksz)920 void memmove_wd(void *to, void *from, size_t len, ulong chunksz)
921 {
922 memmove(to, from, len);
923 }
924
bootm_host_load_image(const void * fit,int req_image_type)925 static int bootm_host_load_image(const void *fit, int req_image_type)
926 {
927 const char *fit_uname_config = NULL;
928 ulong data, len;
929 bootm_headers_t images;
930 int noffset;
931 ulong load_end;
932 uint8_t image_type;
933 uint8_t imape_comp;
934 void *load_buf;
935 int ret;
936
937 memset(&images, '\0', sizeof(images));
938 images.verify = 1;
939 noffset = fit_image_load(&images, (ulong)fit,
940 NULL, &fit_uname_config,
941 IH_ARCH_DEFAULT, req_image_type, -1,
942 FIT_LOAD_IGNORED, &data, &len);
943 if (noffset < 0)
944 return noffset;
945 if (fit_image_get_type(fit, noffset, &image_type)) {
946 puts("Can't get image type!\n");
947 return -EINVAL;
948 }
949
950 if (fit_image_get_comp(fit, noffset, &imape_comp)) {
951 puts("Can't get image compression!\n");
952 return -EINVAL;
953 }
954
955 /* Allow the image to expand by a factor of 4, should be safe */
956 load_buf = malloc((1 << 20) + len * 4);
957 ret = bootm_decomp_image(imape_comp, 0, data, image_type, load_buf,
958 (void *)data, len, CONFIG_SYS_BOOTM_LEN,
959 &load_end);
960 free(load_buf);
961
962 if (ret && ret != BOOTM_ERR_UNIMPLEMENTED)
963 return ret;
964
965 return 0;
966 }
967
bootm_host_load_images(const void * fit,int cfg_noffset)968 int bootm_host_load_images(const void *fit, int cfg_noffset)
969 {
970 static uint8_t image_types[] = {
971 IH_TYPE_KERNEL,
972 IH_TYPE_FLATDT,
973 IH_TYPE_RAMDISK,
974 };
975 int err = 0;
976 int i;
977
978 for (i = 0; i < ARRAY_SIZE(image_types); i++) {
979 int ret;
980
981 ret = bootm_host_load_image(fit, image_types[i]);
982 if (!err && ret && ret != -ENOENT)
983 err = ret;
984 }
985
986 /* Return the first error we found */
987 return err;
988 }
989
990 #endif /* ndef USE_HOSTCC */
991