1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Copyright (c) 2011 The Chromium OS Authors.
4 * (C) Copyright 2002
5 * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
6 */
7
8 /*
9 * Linux x86 zImage and bzImage loading
10 *
11 * based on the procdure described in
12 * linux/Documentation/i386/boot.txt
13 */
14
15 #define LOG_CATEGORY LOGC_BOOT
16
17 #include <common.h>
18 #include <bootm.h>
19 #include <command.h>
20 #include <env.h>
21 #include <init.h>
22 #include <irq_func.h>
23 #include <log.h>
24 #include <malloc.h>
25 #include <acpi/acpi_table.h>
26 #include <asm/io.h>
27 #include <asm/ptrace.h>
28 #include <asm/zimage.h>
29 #include <asm/byteorder.h>
30 #include <asm/bootm.h>
31 #include <asm/bootparam.h>
32 #include <asm/global_data.h>
33 #ifdef CONFIG_SYS_COREBOOT
34 #include <asm/arch/timestamp.h>
35 #endif
36 #include <linux/compiler.h>
37 #include <linux/ctype.h>
38 #include <linux/libfdt.h>
39
40 DECLARE_GLOBAL_DATA_PTR;
41
42 /*
43 * Memory lay-out:
44 *
45 * relative to setup_base (which is 0x90000 currently)
46 *
47 * 0x0000-0x7FFF Real mode kernel
48 * 0x8000-0x8FFF Stack and heap
49 * 0x9000-0x90FF Kernel command line
50 */
51 #define DEFAULT_SETUP_BASE 0x90000
52 #define COMMAND_LINE_OFFSET 0x9000
53 #define HEAP_END_OFFSET 0x8e00
54
55 #define COMMAND_LINE_SIZE 2048
56
57 /**
58 * struct zboot_state - Current state of the boot
59 *
60 * @bzimage_addr: Address of the bzImage to boot
61 * @bzimage_size: Size of the bzImage, or 0 to detect this
62 * @initrd_addr: Address of the initial ramdisk, or 0 if none
63 * @initrd_size: Size of the initial ramdisk, or 0 if none
64 * @load_address: Address where the bzImage is moved before booting, either
65 * BZIMAGE_LOAD_ADDR or ZIMAGE_LOAD_ADDR
66 * @base_ptr: Pointer to the boot parameters, typically at address
67 * DEFAULT_SETUP_BASE
68 * @cmdline: Environment variable containing the 'override' command line, or
69 * NULL to use the one in the setup block
70 */
71 struct zboot_state {
72 ulong bzimage_addr;
73 ulong bzimage_size;
74 ulong initrd_addr;
75 ulong initrd_size;
76 ulong load_address;
77 struct boot_params *base_ptr;
78 char *cmdline;
79 } state;
80
81 enum {
82 ZBOOT_STATE_START = BIT(0),
83 ZBOOT_STATE_LOAD = BIT(1),
84 ZBOOT_STATE_SETUP = BIT(2),
85 ZBOOT_STATE_INFO = BIT(3),
86 ZBOOT_STATE_GO = BIT(4),
87
88 /* This one doesn't execute automatically, so stop the count before 5 */
89 ZBOOT_STATE_DUMP = BIT(5),
90 ZBOOT_STATE_COUNT = 5,
91 };
92
build_command_line(char * command_line,int auto_boot)93 static void build_command_line(char *command_line, int auto_boot)
94 {
95 char *env_command_line;
96
97 command_line[0] = '\0';
98
99 env_command_line = env_get("bootargs");
100
101 /* set console= argument if we use a serial console */
102 if (!strstr(env_command_line, "console=")) {
103 if (!strcmp(env_get("stdout"), "serial")) {
104
105 /* We seem to use serial console */
106 sprintf(command_line, "console=ttyS0,%s ",
107 env_get("baudrate"));
108 }
109 }
110
111 if (auto_boot)
112 strcat(command_line, "auto ");
113
114 if (env_command_line)
115 strcat(command_line, env_command_line);
116 #ifdef DEBUG
117 printf("Kernel command line:");
118 puts(command_line);
119 printf("\n");
120 #endif
121 }
122
kernel_magic_ok(struct setup_header * hdr)123 static int kernel_magic_ok(struct setup_header *hdr)
124 {
125 if (KERNEL_MAGIC != hdr->boot_flag) {
126 printf("Error: Invalid Boot Flag "
127 "(found 0x%04x, expected 0x%04x)\n",
128 hdr->boot_flag, KERNEL_MAGIC);
129 return 0;
130 } else {
131 printf("Valid Boot Flag\n");
132 return 1;
133 }
134 }
135
get_boot_protocol(struct setup_header * hdr,bool verbose)136 static int get_boot_protocol(struct setup_header *hdr, bool verbose)
137 {
138 if (hdr->header == KERNEL_V2_MAGIC) {
139 if (verbose)
140 printf("Magic signature found\n");
141 return hdr->version;
142 } else {
143 /* Very old kernel */
144 if (verbose)
145 printf("Magic signature not found\n");
146 return 0x0100;
147 }
148 }
149
setup_device_tree(struct setup_header * hdr,const void * fdt_blob)150 static int setup_device_tree(struct setup_header *hdr, const void *fdt_blob)
151 {
152 int bootproto = get_boot_protocol(hdr, false);
153 struct setup_data *sd;
154 int size;
155
156 if (bootproto < 0x0209)
157 return -ENOTSUPP;
158
159 if (!fdt_blob)
160 return 0;
161
162 size = fdt_totalsize(fdt_blob);
163 if (size < 0)
164 return -EINVAL;
165
166 size += sizeof(struct setup_data);
167 sd = (struct setup_data *)malloc(size);
168 if (!sd) {
169 printf("Not enough memory for DTB setup data\n");
170 return -ENOMEM;
171 }
172
173 sd->next = hdr->setup_data;
174 sd->type = SETUP_DTB;
175 sd->len = fdt_totalsize(fdt_blob);
176 memcpy(sd->data, fdt_blob, sd->len);
177 hdr->setup_data = (unsigned long)sd;
178
179 return 0;
180 }
181
get_kernel_version(struct boot_params * params,void * kernel_base)182 static const char *get_kernel_version(struct boot_params *params,
183 void *kernel_base)
184 {
185 struct setup_header *hdr = ¶ms->hdr;
186 int bootproto;
187 const char *s, *end;
188
189 bootproto = get_boot_protocol(hdr, false);
190 if (bootproto < 0x0200 || hdr->setup_sects < 15)
191 return NULL;
192
193 /* sanity-check the kernel version in case it is missing */
194 for (s = kernel_base + hdr->kernel_version + 0x200, end = s + 0x100; *s;
195 s++) {
196 if (!isprint(*s))
197 return NULL;
198 }
199
200 return kernel_base + hdr->kernel_version + 0x200;
201 }
202
load_zimage(char * image,unsigned long kernel_size,ulong * load_addressp)203 struct boot_params *load_zimage(char *image, unsigned long kernel_size,
204 ulong *load_addressp)
205 {
206 struct boot_params *setup_base;
207 const char *version;
208 int setup_size;
209 int bootproto;
210 int big_image;
211
212 struct boot_params *params = (struct boot_params *)image;
213 struct setup_header *hdr = ¶ms->hdr;
214
215 /* base address for real-mode segment */
216 setup_base = (struct boot_params *)DEFAULT_SETUP_BASE;
217
218 if (!kernel_magic_ok(hdr))
219 return 0;
220
221 /* determine size of setup */
222 if (0 == hdr->setup_sects) {
223 log_warning("Setup Sectors = 0 (defaulting to 4)\n");
224 setup_size = 5 * 512;
225 } else {
226 setup_size = (hdr->setup_sects + 1) * 512;
227 }
228
229 log_debug("Setup Size = 0x%8.8lx\n", (ulong)setup_size);
230
231 if (setup_size > SETUP_MAX_SIZE)
232 printf("Error: Setup is too large (%d bytes)\n", setup_size);
233
234 /* determine boot protocol version */
235 bootproto = get_boot_protocol(hdr, true);
236
237 log_debug("Using boot protocol version %x.%02x\n",
238 (bootproto & 0xff00) >> 8, bootproto & 0xff);
239
240 version = get_kernel_version(params, image);
241 if (version)
242 printf("Linux kernel version %s\n", version);
243 else
244 printf("Setup Sectors < 15 - Cannot print kernel version\n");
245
246 /* Determine image type */
247 big_image = (bootproto >= 0x0200) &&
248 (hdr->loadflags & BIG_KERNEL_FLAG);
249
250 /* Determine load address */
251 if (big_image)
252 *load_addressp = BZIMAGE_LOAD_ADDR;
253 else
254 *load_addressp = ZIMAGE_LOAD_ADDR;
255
256 printf("Building boot_params at 0x%8.8lx\n", (ulong)setup_base);
257 memset(setup_base, 0, sizeof(*setup_base));
258 setup_base->hdr = params->hdr;
259
260 if (bootproto >= 0x0204)
261 kernel_size = hdr->syssize * 16;
262 else
263 kernel_size -= setup_size;
264
265 if (bootproto == 0x0100) {
266 /*
267 * A very old kernel MUST have its real-mode code
268 * loaded at 0x90000
269 */
270 if ((ulong)setup_base != 0x90000) {
271 /* Copy the real-mode kernel */
272 memmove((void *)0x90000, setup_base, setup_size);
273
274 /* Copy the command line */
275 memmove((void *)0x99000,
276 (u8 *)setup_base + COMMAND_LINE_OFFSET,
277 COMMAND_LINE_SIZE);
278
279 /* Relocated */
280 setup_base = (struct boot_params *)0x90000;
281 }
282
283 /* It is recommended to clear memory up to the 32K mark */
284 memset((u8 *)0x90000 + setup_size, 0,
285 SETUP_MAX_SIZE - setup_size);
286 }
287
288 if (big_image) {
289 if (kernel_size > BZIMAGE_MAX_SIZE) {
290 printf("Error: bzImage kernel too big! "
291 "(size: %ld, max: %d)\n",
292 kernel_size, BZIMAGE_MAX_SIZE);
293 return 0;
294 }
295 } else if ((kernel_size) > ZIMAGE_MAX_SIZE) {
296 printf("Error: zImage kernel too big! (size: %ld, max: %d)\n",
297 kernel_size, ZIMAGE_MAX_SIZE);
298 return 0;
299 }
300
301 printf("Loading %s at address %lx (%ld bytes)\n",
302 big_image ? "bzImage" : "zImage", *load_addressp, kernel_size);
303
304 memmove((void *)*load_addressp, image + setup_size, kernel_size);
305
306 return setup_base;
307 }
308
setup_zimage(struct boot_params * setup_base,char * cmd_line,int auto_boot,ulong initrd_addr,ulong initrd_size,ulong cmdline_force)309 int setup_zimage(struct boot_params *setup_base, char *cmd_line, int auto_boot,
310 ulong initrd_addr, ulong initrd_size, ulong cmdline_force)
311 {
312 struct setup_header *hdr = &setup_base->hdr;
313 int bootproto = get_boot_protocol(hdr, false);
314
315 log_debug("Setup E820 entries\n");
316 if (ll_boot_init()) {
317 setup_base->e820_entries = install_e820_map(
318 ARRAY_SIZE(setup_base->e820_map), setup_base->e820_map);
319 } else if (IS_ENABLED(CONFIG_COREBOOT_SYSINFO)) {
320 setup_base->e820_entries = cb_install_e820_map(
321 ARRAY_SIZE(setup_base->e820_map), setup_base->e820_map);
322 }
323
324 if (bootproto == 0x0100) {
325 setup_base->screen_info.cl_magic = COMMAND_LINE_MAGIC;
326 setup_base->screen_info.cl_offset = COMMAND_LINE_OFFSET;
327 }
328 if (bootproto >= 0x0200) {
329 hdr->type_of_loader = 0x80; /* U-Boot version 0 */
330 if (initrd_addr) {
331 printf("Initial RAM disk at linear address "
332 "0x%08lx, size %ld bytes\n",
333 initrd_addr, initrd_size);
334
335 hdr->ramdisk_image = initrd_addr;
336 hdr->ramdisk_size = initrd_size;
337 }
338 }
339
340 if (bootproto >= 0x0201) {
341 hdr->heap_end_ptr = HEAP_END_OFFSET;
342 hdr->loadflags |= HEAP_FLAG;
343 }
344
345 if (cmd_line) {
346 int max_size = 0xff;
347 int ret;
348
349 log_debug("Setup cmdline\n");
350 if (bootproto >= 0x0206)
351 max_size = hdr->cmdline_size;
352 if (bootproto >= 0x0202) {
353 hdr->cmd_line_ptr = (uintptr_t)cmd_line;
354 } else if (bootproto >= 0x0200) {
355 setup_base->screen_info.cl_magic = COMMAND_LINE_MAGIC;
356 setup_base->screen_info.cl_offset =
357 (uintptr_t)cmd_line - (uintptr_t)setup_base;
358
359 hdr->setup_move_size = 0x9100;
360 }
361
362 /* build command line at COMMAND_LINE_OFFSET */
363 if (cmdline_force)
364 strcpy(cmd_line, (char *)cmdline_force);
365 else
366 build_command_line(cmd_line, auto_boot);
367 ret = bootm_process_cmdline(cmd_line, max_size, BOOTM_CL_ALL);
368 if (ret) {
369 printf("Cmdline setup failed (max_size=%x, bootproto=%x, err=%d)\n",
370 max_size, bootproto, ret);
371 return ret;
372 }
373 printf("Kernel command line: \"");
374 puts(cmd_line);
375 printf("\"\n");
376 }
377
378 if (IS_ENABLED(CONFIG_INTEL_MID) && bootproto >= 0x0207)
379 hdr->hardware_subarch = X86_SUBARCH_INTEL_MID;
380
381 if (IS_ENABLED(CONFIG_GENERATE_ACPI_TABLE))
382 setup_base->acpi_rsdp_addr = acpi_get_rsdp_addr();
383
384 log_debug("Setup devicetree\n");
385 setup_device_tree(hdr, (const void *)env_get_hex("fdtaddr", 0));
386 setup_video(&setup_base->screen_info);
387
388 if (IS_ENABLED(CONFIG_EFI_STUB))
389 setup_efi_info(&setup_base->efi_info);
390
391 return 0;
392 }
393
do_zboot_start(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[])394 static int do_zboot_start(struct cmd_tbl *cmdtp, int flag, int argc,
395 char *const argv[])
396 {
397 const char *s;
398
399 memset(&state, '\0', sizeof(state));
400 if (argc >= 2) {
401 /* argv[1] holds the address of the bzImage */
402 s = argv[1];
403 } else {
404 s = env_get("fileaddr");
405 }
406
407 if (s)
408 state.bzimage_addr = simple_strtoul(s, NULL, 16);
409
410 if (argc >= 3) {
411 /* argv[2] holds the size of the bzImage */
412 state.bzimage_size = simple_strtoul(argv[2], NULL, 16);
413 }
414
415 if (argc >= 4)
416 state.initrd_addr = simple_strtoul(argv[3], NULL, 16);
417 if (argc >= 5)
418 state.initrd_size = simple_strtoul(argv[4], NULL, 16);
419 if (argc >= 6) {
420 /*
421 * When the base_ptr is passed in, we assume that the image is
422 * already loaded at the address given by argv[1] and therefore
423 * the original bzImage is somewhere else, or not accessible.
424 * In any case, we don't need access to the bzImage since all
425 * the processing is assumed to be done.
426 *
427 * So set the base_ptr to the given address, use this arg as the
428 * load address and set bzimage_addr to 0 so we know that it
429 * cannot be proceesed (or processed again).
430 */
431 state.base_ptr = (void *)simple_strtoul(argv[5], NULL, 16);
432 state.load_address = state.bzimage_addr;
433 state.bzimage_addr = 0;
434 }
435 if (argc >= 7)
436 state.cmdline = env_get(argv[6]);
437
438 return 0;
439 }
440
do_zboot_load(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[])441 static int do_zboot_load(struct cmd_tbl *cmdtp, int flag, int argc,
442 char *const argv[])
443 {
444 struct boot_params *base_ptr;
445
446 if (state.base_ptr) {
447 struct boot_params *from = (struct boot_params *)state.base_ptr;
448
449 base_ptr = (struct boot_params *)DEFAULT_SETUP_BASE;
450 log_debug("Building boot_params at 0x%8.8lx\n",
451 (ulong)base_ptr);
452 memset(base_ptr, '\0', sizeof(*base_ptr));
453 base_ptr->hdr = from->hdr;
454 } else {
455 base_ptr = load_zimage((void *)state.bzimage_addr, state.bzimage_size,
456 &state.load_address);
457 if (!base_ptr) {
458 puts("## Kernel loading failed ...\n");
459 return CMD_RET_FAILURE;
460 }
461 }
462 state.base_ptr = base_ptr;
463 if (env_set_hex("zbootbase", (ulong)base_ptr) ||
464 env_set_hex("zbootaddr", state.load_address))
465 return CMD_RET_FAILURE;
466
467 return 0;
468 }
469
do_zboot_setup(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[])470 static int do_zboot_setup(struct cmd_tbl *cmdtp, int flag, int argc,
471 char *const argv[])
472 {
473 struct boot_params *base_ptr = state.base_ptr;
474 int ret;
475
476 if (!base_ptr) {
477 printf("base is not set: use 'zboot load' first\n");
478 return CMD_RET_FAILURE;
479 }
480 ret = setup_zimage(base_ptr, (char *)base_ptr + COMMAND_LINE_OFFSET,
481 0, state.initrd_addr, state.initrd_size,
482 (ulong)state.cmdline);
483 if (ret) {
484 puts("Setting up boot parameters failed ...\n");
485 return CMD_RET_FAILURE;
486 }
487
488 return 0;
489 }
490
do_zboot_info(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[])491 static int do_zboot_info(struct cmd_tbl *cmdtp, int flag, int argc,
492 char *const argv[])
493 {
494 printf("Kernel loaded at %08lx, setup_base=%p\n",
495 state.load_address, state.base_ptr);
496
497 return 0;
498 }
499
do_zboot_go(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[])500 static int do_zboot_go(struct cmd_tbl *cmdtp, int flag, int argc,
501 char *const argv[])
502 {
503 int ret;
504
505 disable_interrupts();
506
507 /* we assume that the kernel is in place */
508 ret = boot_linux_kernel((ulong)state.base_ptr, state.load_address,
509 false);
510 printf("Kernel returned! (err=%d)\n", ret);
511
512 return CMD_RET_FAILURE;
513 }
514
print_num(const char * name,ulong value)515 static void print_num(const char *name, ulong value)
516 {
517 printf("%-20s: %lx\n", name, value);
518 }
519
print_num64(const char * name,u64 value)520 static void print_num64(const char *name, u64 value)
521 {
522 printf("%-20s: %llx\n", name, value);
523 }
524
525 static const char *const e820_type_name[E820_COUNT] = {
526 [E820_RAM] = "RAM",
527 [E820_RESERVED] = "Reserved",
528 [E820_ACPI] = "ACPI",
529 [E820_NVS] = "ACPI NVS",
530 [E820_UNUSABLE] = "Unusable",
531 };
532
533 static const char *const bootloader_id[] = {
534 "LILO",
535 "Loadlin",
536 "bootsect-loader",
537 "Syslinux",
538 "Etherboot/gPXE/iPXE",
539 "ELILO",
540 "undefined",
541 "GRUB",
542 "U-Boot",
543 "Xen",
544 "Gujin",
545 "Qemu",
546 "Arcturus Networks uCbootloader",
547 "kexec-tools",
548 "Extended",
549 "Special",
550 "Reserved",
551 "Minimal Linux Bootloader",
552 "OVMF UEFI virtualization stack",
553 };
554
555 struct flag_info {
556 uint bit;
557 const char *name;
558 };
559
560 static struct flag_info load_flags[] = {
561 { LOADED_HIGH, "loaded-high" },
562 { QUIET_FLAG, "quiet" },
563 { KEEP_SEGMENTS, "keep-segments" },
564 { CAN_USE_HEAP, "can-use-heap" },
565 };
566
567 static struct flag_info xload_flags[] = {
568 { XLF_KERNEL_64, "64-bit-entry" },
569 { XLF_CAN_BE_LOADED_ABOVE_4G, "can-load-above-4gb" },
570 { XLF_EFI_HANDOVER_32, "32-efi-handoff" },
571 { XLF_EFI_HANDOVER_64, "64-efi-handoff" },
572 { XLF_EFI_KEXEC, "kexec-efi-runtime" },
573 };
574
print_flags(struct flag_info * flags,int count,uint value)575 static void print_flags(struct flag_info *flags, int count, uint value)
576 {
577 int i;
578
579 printf("%-20s:", "");
580 for (i = 0; i < count; i++) {
581 uint mask = flags[i].bit;
582
583 if (value & mask)
584 printf(" %s", flags[i].name);
585 }
586 printf("\n");
587 }
588
show_loader(struct setup_header * hdr)589 static void show_loader(struct setup_header *hdr)
590 {
591 bool version_valid = false;
592 int type, version;
593 const char *name;
594
595 type = hdr->type_of_loader >> 4;
596 version = hdr->type_of_loader & 0xf;
597 if (type == 0xe)
598 type = 0x10 + hdr->ext_loader_type;
599 version |= hdr->ext_loader_ver << 4;
600 if (!hdr->type_of_loader) {
601 name = "pre-2.00 bootloader";
602 } else if (hdr->type_of_loader == 0xff) {
603 name = "unknown";
604 } else if (type < ARRAY_SIZE(bootloader_id)) {
605 name = bootloader_id[type];
606 version_valid = true;
607 } else {
608 name = "undefined";
609 }
610 printf("%20s %s", "", name);
611 if (version_valid)
612 printf(", version %x", version);
613 printf("\n");
614 }
615
zimage_dump(struct boot_params * base_ptr)616 void zimage_dump(struct boot_params *base_ptr)
617 {
618 struct setup_header *hdr;
619 const char *version;
620 int i;
621
622 printf("Setup located at %p:\n\n", base_ptr);
623 print_num64("ACPI RSDP addr", base_ptr->acpi_rsdp_addr);
624
625 printf("E820: %d entries\n", base_ptr->e820_entries);
626 if (base_ptr->e820_entries) {
627 printf("%18s %16s %s\n", "Addr", "Size", "Type");
628 for (i = 0; i < base_ptr->e820_entries; i++) {
629 struct e820_entry *entry = &base_ptr->e820_map[i];
630
631 printf("%12llx %10llx %s\n", entry->addr, entry->size,
632 entry->type < E820_COUNT ?
633 e820_type_name[entry->type] :
634 simple_itoa(entry->type));
635 }
636 }
637
638 hdr = &base_ptr->hdr;
639 print_num("Setup sectors", hdr->setup_sects);
640 print_num("Root flags", hdr->root_flags);
641 print_num("Sys size", hdr->syssize);
642 print_num("RAM size", hdr->ram_size);
643 print_num("Video mode", hdr->vid_mode);
644 print_num("Root dev", hdr->root_dev);
645 print_num("Boot flag", hdr->boot_flag);
646 print_num("Jump", hdr->jump);
647 print_num("Header", hdr->header);
648 if (hdr->header == KERNEL_V2_MAGIC)
649 printf("%-20s %s\n", "", "Kernel V2");
650 else
651 printf("%-20s %s\n", "", "Ancient kernel, using version 100");
652 print_num("Version", hdr->version);
653 print_num("Real mode switch", hdr->realmode_swtch);
654 print_num("Start sys", hdr->start_sys);
655 print_num("Kernel version", hdr->kernel_version);
656 version = get_kernel_version(base_ptr, (void *)state.bzimage_addr);
657 if (version)
658 printf(" @%p: %s\n", version, version);
659 print_num("Type of loader", hdr->type_of_loader);
660 show_loader(hdr);
661 print_num("Load flags", hdr->loadflags);
662 print_flags(load_flags, ARRAY_SIZE(load_flags), hdr->loadflags);
663 print_num("Setup move size", hdr->setup_move_size);
664 print_num("Code32 start", hdr->code32_start);
665 print_num("Ramdisk image", hdr->ramdisk_image);
666 print_num("Ramdisk size", hdr->ramdisk_size);
667 print_num("Bootsect kludge", hdr->bootsect_kludge);
668 print_num("Heap end ptr", hdr->heap_end_ptr);
669 print_num("Ext loader ver", hdr->ext_loader_ver);
670 print_num("Ext loader type", hdr->ext_loader_type);
671 print_num("Command line ptr", hdr->cmd_line_ptr);
672 if (hdr->cmd_line_ptr) {
673 printf(" ");
674 /* Use puts() to avoid limits from CONFIG_SYS_PBSIZE */
675 puts((char *)(ulong)hdr->cmd_line_ptr);
676 printf("\n");
677 }
678 print_num("Initrd addr max", hdr->initrd_addr_max);
679 print_num("Kernel alignment", hdr->kernel_alignment);
680 print_num("Relocatable kernel", hdr->relocatable_kernel);
681 print_num("Min alignment", hdr->min_alignment);
682 if (hdr->min_alignment)
683 printf("%-20s: %x\n", "", 1 << hdr->min_alignment);
684 print_num("Xload flags", hdr->xloadflags);
685 print_flags(xload_flags, ARRAY_SIZE(xload_flags), hdr->xloadflags);
686 print_num("Cmdline size", hdr->cmdline_size);
687 print_num("Hardware subarch", hdr->hardware_subarch);
688 print_num64("HW subarch data", hdr->hardware_subarch_data);
689 print_num("Payload offset", hdr->payload_offset);
690 print_num("Payload length", hdr->payload_length);
691 print_num64("Setup data", hdr->setup_data);
692 print_num64("Pref address", hdr->pref_address);
693 print_num("Init size", hdr->init_size);
694 print_num("Handover offset", hdr->handover_offset);
695 if (get_boot_protocol(hdr, false) >= 0x215)
696 print_num("Kernel info offset", hdr->kernel_info_offset);
697 }
698
do_zboot_dump(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[])699 static int do_zboot_dump(struct cmd_tbl *cmdtp, int flag, int argc,
700 char *const argv[])
701 {
702 struct boot_params *base_ptr = state.base_ptr;
703
704 if (argc > 1)
705 base_ptr = (void *)simple_strtoul(argv[1], NULL, 16);
706 if (!base_ptr) {
707 printf("No zboot setup_base\n");
708 return CMD_RET_FAILURE;
709 }
710 zimage_dump(base_ptr);
711
712 return 0;
713 }
714
715 /* Note: This defines the complete_zboot() function */
716 U_BOOT_SUBCMDS(zboot,
717 U_BOOT_CMD_MKENT(start, 8, 1, do_zboot_start, "", ""),
718 U_BOOT_CMD_MKENT(load, 1, 1, do_zboot_load, "", ""),
719 U_BOOT_CMD_MKENT(setup, 1, 1, do_zboot_setup, "", ""),
720 U_BOOT_CMD_MKENT(info, 1, 1, do_zboot_info, "", ""),
721 U_BOOT_CMD_MKENT(go, 1, 1, do_zboot_go, "", ""),
722 U_BOOT_CMD_MKENT(dump, 2, 1, do_zboot_dump, "", ""),
723 )
724
do_zboot_states(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[],int state_mask)725 int do_zboot_states(struct cmd_tbl *cmdtp, int flag, int argc,
726 char *const argv[], int state_mask)
727 {
728 int i;
729
730 for (i = 0; i < ZBOOT_STATE_COUNT; i++) {
731 struct cmd_tbl *cmd = &zboot_subcmds[i];
732 int mask = 1 << i;
733 int ret;
734
735 if (mask & state_mask) {
736 ret = cmd->cmd(cmd, flag, argc, argv);
737 if (ret)
738 return ret;
739 }
740 }
741
742 return 0;
743 }
744
do_zboot_parent(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[],int * repeatable)745 int do_zboot_parent(struct cmd_tbl *cmdtp, int flag, int argc,
746 char *const argv[], int *repeatable)
747 {
748 /* determine if we have a sub command */
749 if (argc > 1) {
750 char *endp;
751
752 simple_strtoul(argv[1], &endp, 16);
753 /*
754 * endp pointing to nul means that argv[1] was just a valid
755 * number, so pass it along to the normal processing
756 */
757 if (*endp)
758 return do_zboot(cmdtp, flag, argc, argv, repeatable);
759 }
760
761 do_zboot_states(cmdtp, flag, argc, argv, ZBOOT_STATE_START |
762 ZBOOT_STATE_LOAD | ZBOOT_STATE_SETUP |
763 ZBOOT_STATE_INFO | ZBOOT_STATE_GO);
764
765 return CMD_RET_FAILURE;
766 }
767
768 U_BOOT_CMDREP_COMPLETE(
769 zboot, 8, do_zboot_parent, "Boot bzImage",
770 "[addr] [size] [initrd addr] [initrd size] [setup] [cmdline]\n"
771 " addr - The optional starting address of the bzimage.\n"
772 " If not set it defaults to the environment\n"
773 " variable \"fileaddr\".\n"
774 " size - The optional size of the bzimage. Defaults to\n"
775 " zero.\n"
776 " initrd addr - The address of the initrd image to use, if any.\n"
777 " initrd size - The size of the initrd image to use, if any.\n"
778 " setup - The address of the kernel setup region, if this\n"
779 " is not at addr\n"
780 " cmdline - Environment variable containing the kernel\n"
781 " command line, to override U-Boot's normal\n"
782 " cmdline generation\n"
783 "\n"
784 "Sub-commands to do part of the zboot sequence:\n"
785 "\tstart [addr [arg ...]] - specify arguments\n"
786 "\tload - load OS image\n"
787 "\tsetup - set up table\n"
788 "\tinfo - show summary info\n"
789 "\tgo - start OS\n"
790 "\tdump [addr] - dump info (optional address of boot params)",
791 complete_zboot
792 );
793