]> Git Repo - J-u-boot.git/blob - boot/bootm_os.c
Merge tag 'efi-2022-01-rc2-2' of https://source.denx.de/u-boot/custodians/u-boot-efi
[J-u-boot.git] / boot / bootm_os.c
1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2000-2009
4  * Wolfgang Denk, DENX Software Engineering, [email protected].
5  */
6
7 #include <common.h>
8 #include <bootm.h>
9 #include <bootstage.h>
10 #include <cpu_func.h>
11 #include <efi_loader.h>
12 #include <env.h>
13 #include <fdt_support.h>
14 #include <image.h>
15 #include <lmb.h>
16 #include <log.h>
17 #include <asm/global_data.h>
18 #include <linux/libfdt.h>
19 #include <malloc.h>
20 #include <mapmem.h>
21 #include <vxworks.h>
22 #include <tee/optee.h>
23
24 DECLARE_GLOBAL_DATA_PTR;
25
26 static int do_bootm_standalone(int flag, int argc, char *const argv[],
27                                bootm_headers_t *images)
28 {
29         char *s;
30         int (*appl)(int, char *const[]);
31
32         /* Don't start if "autostart" is set to "no" */
33         s = env_get("autostart");
34         if ((s != NULL) && !strcmp(s, "no")) {
35                 env_set_hex("filesize", images->os.image_len);
36                 return 0;
37         }
38         appl = (int (*)(int, char * const []))images->ep;
39         appl(argc, argv);
40         return 0;
41 }
42
43 /*******************************************************************/
44 /* OS booting routines */
45 /*******************************************************************/
46
47 #if defined(CONFIG_BOOTM_NETBSD) || defined(CONFIG_BOOTM_PLAN9)
48 static void copy_args(char *dest, int argc, char *const argv[], char delim)
49 {
50         int i;
51
52         for (i = 0; i < argc; i++) {
53                 if (i > 0)
54                         *dest++ = delim;
55                 strcpy(dest, argv[i]);
56                 dest += strlen(argv[i]);
57         }
58 }
59 #endif
60
61 static void __maybe_unused fit_unsupported_reset(const char *msg)
62 {
63         if (CONFIG_IS_ENABLED(FIT_VERBOSE)) {
64                 printf("! FIT images not supported for '%s' - must reset board to recover!\n",
65                        msg);
66         }
67 }
68
69 #ifdef CONFIG_BOOTM_NETBSD
70 static int do_bootm_netbsd(int flag, int argc, char *const argv[],
71                            bootm_headers_t *images)
72 {
73         void (*loader)(struct bd_info *, image_header_t *, char *, char *);
74         image_header_t *os_hdr, *hdr;
75         ulong kernel_data, kernel_len;
76         char *cmdline;
77
78         if (flag != BOOTM_STATE_OS_GO)
79                 return 0;
80
81 #if defined(CONFIG_FIT)
82         if (!images->legacy_hdr_valid) {
83                 fit_unsupported_reset("NetBSD");
84                 return 1;
85         }
86 #endif
87         hdr = images->legacy_hdr_os;
88
89         /*
90          * Booting a (NetBSD) kernel image
91          *
92          * This process is pretty similar to a standalone application:
93          * The (first part of an multi-) image must be a stage-2 loader,
94          * which in turn is responsible for loading & invoking the actual
95          * kernel.  The only differences are the parameters being passed:
96          * besides the board info strucure, the loader expects a command
97          * line, the name of the console device, and (optionally) the
98          * address of the original image header.
99          */
100         os_hdr = NULL;
101         if (image_check_type(&images->legacy_hdr_os_copy, IH_TYPE_MULTI)) {
102                 image_multi_getimg(hdr, 1, &kernel_data, &kernel_len);
103                 if (kernel_len)
104                         os_hdr = hdr;
105         }
106
107         if (argc > 0) {
108                 ulong len;
109                 int   i;
110
111                 for (i = 0, len = 0; i < argc; i += 1)
112                         len += strlen(argv[i]) + 1;
113                 cmdline = malloc(len);
114                 copy_args(cmdline, argc, argv, ' ');
115         } else {
116                 cmdline = env_get("bootargs");
117                 if (cmdline == NULL)
118                         cmdline = "";
119         }
120
121         loader = (void (*)(struct bd_info *, image_header_t *, char *, char *))images->ep;
122
123         printf("## Transferring control to NetBSD stage-2 loader (at address %08lx) ...\n",
124                (ulong)loader);
125
126         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
127
128         /*
129          * NetBSD Stage-2 Loader Parameters:
130          *   arg[0]: pointer to board info data
131          *   arg[1]: image load address
132          *   arg[2]: char pointer to the console device to use
133          *   arg[3]: char pointer to the boot arguments
134          */
135         (*loader)(gd->bd, os_hdr, "", cmdline);
136
137         return 1;
138 }
139 #endif /* CONFIG_BOOTM_NETBSD*/
140
141 #ifdef CONFIG_BOOTM_RTEMS
142 static int do_bootm_rtems(int flag, int argc, char *const argv[],
143                           bootm_headers_t *images)
144 {
145         void (*entry_point)(struct bd_info *);
146
147         if (flag != BOOTM_STATE_OS_GO)
148                 return 0;
149
150 #if defined(CONFIG_FIT)
151         if (!images->legacy_hdr_valid) {
152                 fit_unsupported_reset("RTEMS");
153                 return 1;
154         }
155 #endif
156
157         entry_point = (void (*)(struct bd_info *))images->ep;
158
159         printf("## Transferring control to RTEMS (at address %08lx) ...\n",
160                (ulong)entry_point);
161
162         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
163
164         /*
165          * RTEMS Parameters:
166          *   r3: ptr to board info data
167          */
168         (*entry_point)(gd->bd);
169
170         return 1;
171 }
172 #endif /* CONFIG_BOOTM_RTEMS */
173
174 #if defined(CONFIG_BOOTM_OSE)
175 static int do_bootm_ose(int flag, int argc, char *const argv[],
176                         bootm_headers_t *images)
177 {
178         void (*entry_point)(void);
179
180         if (flag != BOOTM_STATE_OS_GO)
181                 return 0;
182
183 #if defined(CONFIG_FIT)
184         if (!images->legacy_hdr_valid) {
185                 fit_unsupported_reset("OSE");
186                 return 1;
187         }
188 #endif
189
190         entry_point = (void (*)(void))images->ep;
191
192         printf("## Transferring control to OSE (at address %08lx) ...\n",
193                (ulong)entry_point);
194
195         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
196
197         /*
198          * OSE Parameters:
199          *   None
200          */
201         (*entry_point)();
202
203         return 1;
204 }
205 #endif /* CONFIG_BOOTM_OSE */
206
207 #if defined(CONFIG_BOOTM_PLAN9)
208 static int do_bootm_plan9(int flag, int argc, char *const argv[],
209                           bootm_headers_t *images)
210 {
211         void (*entry_point)(void);
212         char *s;
213
214         if (flag != BOOTM_STATE_OS_GO)
215                 return 0;
216
217 #if defined(CONFIG_FIT)
218         if (!images->legacy_hdr_valid) {
219                 fit_unsupported_reset("Plan 9");
220                 return 1;
221         }
222 #endif
223
224         /* See README.plan9 */
225         s = env_get("confaddr");
226         if (s != NULL) {
227                 char *confaddr = (char *)hextoul(s, NULL);
228
229                 if (argc > 0) {
230                         copy_args(confaddr, argc, argv, '\n');
231                 } else {
232                         s = env_get("bootargs");
233                         if (s != NULL)
234                                 strcpy(confaddr, s);
235                 }
236         }
237
238         entry_point = (void (*)(void))images->ep;
239
240         printf("## Transferring control to Plan 9 (at address %08lx) ...\n",
241                (ulong)entry_point);
242
243         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
244
245         /*
246          * Plan 9 Parameters:
247          *   None
248          */
249         (*entry_point)();
250
251         return 1;
252 }
253 #endif /* CONFIG_BOOTM_PLAN9 */
254
255 #if defined(CONFIG_BOOTM_VXWORKS) && \
256         (defined(CONFIG_PPC) || defined(CONFIG_ARM))
257
258 static void do_bootvx_fdt(bootm_headers_t *images)
259 {
260 #if defined(CONFIG_OF_LIBFDT)
261         int ret;
262         char *bootline;
263         ulong of_size = images->ft_len;
264         char **of_flat_tree = &images->ft_addr;
265         struct lmb *lmb = &images->lmb;
266
267         if (*of_flat_tree) {
268                 boot_fdt_add_mem_rsv_regions(lmb, *of_flat_tree);
269
270                 ret = boot_relocate_fdt(lmb, of_flat_tree, &of_size);
271                 if (ret)
272                         return;
273
274                 /* Update ethernet nodes */
275                 fdt_fixup_ethernet(*of_flat_tree);
276
277                 ret = fdt_add_subnode(*of_flat_tree, 0, "chosen");
278                 if ((ret >= 0 || ret == -FDT_ERR_EXISTS)) {
279                         bootline = env_get("bootargs");
280                         if (bootline) {
281                                 ret = fdt_find_and_setprop(*of_flat_tree,
282                                                 "/chosen", "bootargs",
283                                                 bootline,
284                                                 strlen(bootline) + 1, 1);
285                                 if (ret < 0) {
286                                         printf("## ERROR: %s : %s\n", __func__,
287                                                fdt_strerror(ret));
288                                         return;
289                                 }
290                         }
291                 } else {
292                         printf("## ERROR: %s : %s\n", __func__,
293                                fdt_strerror(ret));
294                         return;
295                 }
296         }
297 #endif
298
299         boot_prep_vxworks(images);
300
301         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
302
303 #if defined(CONFIG_OF_LIBFDT)
304         printf("## Starting vxWorks at 0x%08lx, device tree at 0x%08lx ...\n",
305                (ulong)images->ep, (ulong)*of_flat_tree);
306 #else
307         printf("## Starting vxWorks at 0x%08lx\n", (ulong)images->ep);
308 #endif
309
310         boot_jump_vxworks(images);
311
312         puts("## vxWorks terminated\n");
313 }
314
315 static int do_bootm_vxworks_legacy(int flag, int argc, char *const argv[],
316                                    bootm_headers_t *images)
317 {
318         if (flag != BOOTM_STATE_OS_GO)
319                 return 0;
320
321 #if defined(CONFIG_FIT)
322         if (!images->legacy_hdr_valid) {
323                 fit_unsupported_reset("VxWorks");
324                 return 1;
325         }
326 #endif
327
328         do_bootvx_fdt(images);
329
330         return 1;
331 }
332
333 int do_bootm_vxworks(int flag, int argc, char *const argv[],
334                      bootm_headers_t *images)
335 {
336         char *bootargs;
337         int pos;
338         unsigned long vxflags;
339         bool std_dtb = false;
340
341         /* get bootargs env */
342         bootargs = env_get("bootargs");
343
344         if (bootargs != NULL) {
345                 for (pos = 0; pos < strlen(bootargs); pos++) {
346                         /* find f=0xnumber flag */
347                         if ((bootargs[pos] == '=') && (pos >= 1) &&
348                             (bootargs[pos - 1] == 'f')) {
349                                 vxflags = hextoul(&bootargs[pos + 1], NULL);
350                                 if (vxflags & VXWORKS_SYSFLG_STD_DTB)
351                                         std_dtb = true;
352                         }
353                 }
354         }
355
356         if (std_dtb) {
357                 if (flag & BOOTM_STATE_OS_PREP)
358                         printf("   Using standard DTB\n");
359                 return do_bootm_linux(flag, argc, argv, images);
360         } else {
361                 if (flag & BOOTM_STATE_OS_PREP)
362                         printf("   !!! WARNING !!! Using legacy DTB\n");
363                 return do_bootm_vxworks_legacy(flag, argc, argv, images);
364         }
365 }
366 #endif
367
368 #if defined(CONFIG_CMD_ELF)
369 static int do_bootm_qnxelf(int flag, int argc, char *const argv[],
370                            bootm_headers_t *images)
371 {
372         char *local_args[2];
373         char str[16];
374         int dcache;
375
376         if (flag != BOOTM_STATE_OS_GO)
377                 return 0;
378
379 #if defined(CONFIG_FIT)
380         if (!images->legacy_hdr_valid) {
381                 fit_unsupported_reset("QNX");
382                 return 1;
383         }
384 #endif
385
386         sprintf(str, "%lx", images->ep); /* write entry-point into string */
387         local_args[0] = argv[0];
388         local_args[1] = str;    /* and provide it via the arguments */
389
390         /*
391          * QNX images require the data cache is disabled.
392          */
393         dcache = dcache_status();
394         if (dcache)
395                 dcache_disable();
396
397         do_bootelf(NULL, 0, 2, local_args);
398
399         if (dcache)
400                 dcache_enable();
401
402         return 1;
403 }
404 #endif
405
406 #ifdef CONFIG_INTEGRITY
407 static int do_bootm_integrity(int flag, int argc, char *const argv[],
408                               bootm_headers_t *images)
409 {
410         void (*entry_point)(void);
411
412         if (flag != BOOTM_STATE_OS_GO)
413                 return 0;
414
415 #if defined(CONFIG_FIT)
416         if (!images->legacy_hdr_valid) {
417                 fit_unsupported_reset("INTEGRITY");
418                 return 1;
419         }
420 #endif
421
422         entry_point = (void (*)(void))images->ep;
423
424         printf("## Transferring control to INTEGRITY (at address %08lx) ...\n",
425                (ulong)entry_point);
426
427         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
428
429         /*
430          * INTEGRITY Parameters:
431          *   None
432          */
433         (*entry_point)();
434
435         return 1;
436 }
437 #endif
438
439 #ifdef CONFIG_BOOTM_OPENRTOS
440 static int do_bootm_openrtos(int flag, int argc, char *const argv[],
441                              bootm_headers_t *images)
442 {
443         void (*entry_point)(void);
444
445         if (flag != BOOTM_STATE_OS_GO)
446                 return 0;
447
448         entry_point = (void (*)(void))images->ep;
449
450         printf("## Transferring control to OpenRTOS (at address %08lx) ...\n",
451                 (ulong)entry_point);
452
453         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
454
455         /*
456          * OpenRTOS Parameters:
457          *   None
458          */
459         (*entry_point)();
460
461         return 1;
462 }
463 #endif
464
465 #ifdef CONFIG_BOOTM_OPTEE
466 static int do_bootm_tee(int flag, int argc, char *const argv[],
467                         bootm_headers_t *images)
468 {
469         int ret;
470
471         /* Verify OS type */
472         if (images->os.os != IH_OS_TEE) {
473                 return 1;
474         };
475
476         /* Validate OPTEE header */
477         ret = optee_verify_bootm_image(images->os.image_start,
478                                        images->os.load,
479                                        images->os.image_len);
480         if (ret)
481                 return ret;
482
483         /* Locate FDT etc */
484         ret = bootm_find_images(flag, argc, argv, 0, 0);
485         if (ret)
486                 return ret;
487
488         /* From here we can run the regular linux boot path */
489         return do_bootm_linux(flag, argc, argv, images);
490 }
491 #endif
492
493 #ifdef CONFIG_BOOTM_EFI
494 static int do_bootm_efi(int flag, int argc, char *const argv[],
495                         bootm_headers_t *images)
496 {
497         int ret;
498         efi_status_t efi_ret;
499         void *image_buf;
500
501         if (flag != BOOTM_STATE_OS_GO)
502                 return 0;
503
504         /* Locate FDT, if provided */
505         ret = bootm_find_images(flag, argc, argv, 0, 0);
506         if (ret)
507                 return ret;
508
509         /* Initialize EFI drivers */
510         efi_ret = efi_init_obj_list();
511         if (efi_ret != EFI_SUCCESS) {
512                 printf("## Failed to initialize UEFI sub-system: r = %lu\n",
513                        efi_ret & ~EFI_ERROR_MASK);
514                 return 1;
515         }
516
517         /* Install device tree */
518         efi_ret = efi_install_fdt(images->ft_len
519                                   ? images->ft_addr : EFI_FDT_USE_INTERNAL);
520         if (efi_ret != EFI_SUCCESS) {
521                 printf("## Failed to install device tree: r = %lu\n",
522                        efi_ret & ~EFI_ERROR_MASK);
523                 return 1;
524         }
525
526         /* Run EFI image */
527         printf("## Transferring control to EFI (at address %08lx) ...\n",
528                images->ep);
529         bootstage_mark(BOOTSTAGE_ID_RUN_OS);
530
531         /* We expect to return */
532         images->os.type = IH_TYPE_STANDALONE;
533
534         image_buf = map_sysmem(images->ep, images->os.image_len);
535
536         efi_ret = efi_run_image(image_buf, images->os.image_len);
537         if (efi_ret != EFI_SUCCESS)
538                 return 1;
539         return 0;
540 }
541 #endif
542
543 static boot_os_fn *boot_os[] = {
544         [IH_OS_U_BOOT] = do_bootm_standalone,
545 #ifdef CONFIG_BOOTM_LINUX
546         [IH_OS_LINUX] = do_bootm_linux,
547 #endif
548 #ifdef CONFIG_BOOTM_NETBSD
549         [IH_OS_NETBSD] = do_bootm_netbsd,
550 #endif
551 #ifdef CONFIG_BOOTM_RTEMS
552         [IH_OS_RTEMS] = do_bootm_rtems,
553 #endif
554 #if defined(CONFIG_BOOTM_OSE)
555         [IH_OS_OSE] = do_bootm_ose,
556 #endif
557 #if defined(CONFIG_BOOTM_PLAN9)
558         [IH_OS_PLAN9] = do_bootm_plan9,
559 #endif
560 #if defined(CONFIG_BOOTM_VXWORKS) && \
561         (defined(CONFIG_PPC) || defined(CONFIG_ARM) || defined(CONFIG_RISCV))
562         [IH_OS_VXWORKS] = do_bootm_vxworks,
563 #endif
564 #if defined(CONFIG_CMD_ELF)
565         [IH_OS_QNX] = do_bootm_qnxelf,
566 #endif
567 #ifdef CONFIG_INTEGRITY
568         [IH_OS_INTEGRITY] = do_bootm_integrity,
569 #endif
570 #ifdef CONFIG_BOOTM_OPENRTOS
571         [IH_OS_OPENRTOS] = do_bootm_openrtos,
572 #endif
573 #ifdef CONFIG_BOOTM_OPTEE
574         [IH_OS_TEE] = do_bootm_tee,
575 #endif
576 #ifdef CONFIG_BOOTM_EFI
577         [IH_OS_EFI] = do_bootm_efi,
578 #endif
579 };
580
581 /* Allow for arch specific config before we boot */
582 __weak void arch_preboot_os(void)
583 {
584         /* please define platform specific arch_preboot_os() */
585 }
586
587 /* Allow for board specific config before we boot */
588 __weak void board_preboot_os(void)
589 {
590         /* please define board specific board_preboot_os() */
591 }
592
593 int boot_selected_os(int argc, char *const argv[], int state,
594                      bootm_headers_t *images, boot_os_fn *boot_fn)
595 {
596         arch_preboot_os();
597         board_preboot_os();
598         boot_fn(state, argc, argv, images);
599
600         /* Stand-alone may return when 'autostart' is 'no' */
601         if (images->os.type == IH_TYPE_STANDALONE ||
602             IS_ENABLED(CONFIG_SANDBOX) ||
603             state == BOOTM_STATE_OS_FAKE_GO) /* We expect to return */
604                 return 0;
605         bootstage_error(BOOTSTAGE_ID_BOOT_OS_RETURNED);
606         debug("\n## Control returned to monitor - resetting...\n");
607
608         return BOOTM_ERR_RESET;
609 }
610
611 boot_os_fn *bootm_os_get_boot_func(int os)
612 {
613 #ifdef CONFIG_NEEDS_MANUAL_RELOC
614         static bool relocated;
615
616         if (!relocated) {
617                 int i;
618
619                 /* relocate boot function table */
620                 for (i = 0; i < ARRAY_SIZE(boot_os); i++)
621                         if (boot_os[i] != NULL)
622                                 boot_os[i] += gd->reloc_off;
623
624                 relocated = true;
625         }
626 #endif
627         return boot_os[os];
628 }
This page took 0.064173 seconds and 4 git commands to generate.