1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2003-2004 Eric Biederman
* Copyright (C) 2005-2010 coresystems GmbH
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; version 2 of
* the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <arch/cbconfig.h>
#include <console/console.h>
#include <console/uart.h>
#include <ip_checksum.h>
#include <boot/coreboot_tables.h>
#include <boot/tables.h>
#include <boot_device.h>
#include <string.h>
#include <version.h>
#include <boardid.h>
#include <device/device.h>
#include <fmap.h>
#include <stdlib.h>
#include <cbfs.h>
#include <cbmem.h>
#include <bootmem.h>
#include <spi_flash.h>
#include <vboot/vbnv_layout.h>
#if CONFIG_USE_OPTION_TABLE
#include <option_table.h>
#endif
#if CONFIG_CHROMEOS
#if CONFIG_HAVE_ACPI_TABLES
#include <arch/acpi.h>
#endif
#include <vendorcode/google/chromeos/chromeos.h>
#include <vendorcode/google/chromeos/gnvs.h>
#endif
#if CONFIG_ARCH_X86
#include <cpu/x86/mtrr.h>
#endif
#include <commonlib/helpers.h>
static struct lb_header *lb_table_init(unsigned long addr)
{
struct lb_header *header;
/* 16 byte align the address */
addr += 15;
addr &= ~15;
header = (void *)addr;
header->signature[0] = 'L';
header->signature[1] = 'B';
header->signature[2] = 'I';
header->signature[3] = 'O';
header->header_bytes = sizeof(*header);
header->header_checksum = 0;
header->table_bytes = 0;
header->table_checksum = 0;
header->table_entries = 0;
return header;
}
static struct lb_record *lb_first_record(struct lb_header *header)
{
struct lb_record *rec;
rec = (void *)(((char *)header) + sizeof(*header));
return rec;
}
static struct lb_record *lb_last_record(struct lb_header *header)
{
struct lb_record *rec;
rec = (void *)(((char *)header) + sizeof(*header) + header->table_bytes);
return rec;
}
struct lb_record *lb_new_record(struct lb_header *header)
{
struct lb_record *rec;
rec = lb_last_record(header);
if (header->table_entries)
header->table_bytes += rec->size;
rec = lb_last_record(header);
header->table_entries++;
rec->tag = LB_TAG_UNUSED;
rec->size = sizeof(*rec);
return rec;
}
static struct lb_memory *lb_memory(struct lb_header *header)
{
struct lb_record *rec;
struct lb_memory *mem;
rec = lb_new_record(header);
mem = (struct lb_memory *)rec;
mem->tag = LB_TAG_MEMORY;
mem->size = sizeof(*mem);
return mem;
}
void lb_add_serial(struct lb_serial *new_serial, void *data)
{
struct lb_header *header = (struct lb_header *)data;
struct lb_serial *serial;
serial = (struct lb_serial *)lb_new_record(header);
serial->tag = LB_TAG_SERIAL;
serial->size = sizeof(*serial);
serial->type = new_serial->type;
serial->baseaddr = new_serial->baseaddr;
serial->baud = new_serial->baud;
serial->regwidth = new_serial->regwidth;
serial->input_hertz = new_serial->input_hertz;
serial->uart_pci_addr = new_serial->uart_pci_addr;
}
void lb_add_console(uint16_t consoletype, void *data)
{
struct lb_header *header = (struct lb_header *)data;
struct lb_console *console;
console = (struct lb_console *)lb_new_record(header);
console->tag = LB_TAG_CONSOLE;
console->size = sizeof(*console);
console->type = consoletype;
}
void __attribute__((weak)) lb_framebuffer(struct lb_header *header)
{
#if CONFIG_FRAMEBUFFER_KEEP_VESA_MODE || CONFIG_MAINBOARD_DO_NATIVE_VGA_INIT
void fill_lb_framebuffer(struct lb_framebuffer *framebuffer);
int vbe_mode_info_valid(void);
// If there isn't any mode info to put in the table, don't ask for it
// to be filled with junk.
if (!vbe_mode_info_valid())
return;
struct lb_framebuffer *framebuffer;
framebuffer = (struct lb_framebuffer *)lb_new_record(header);
fill_lb_framebuffer(framebuffer);
framebuffer->tag = LB_TAG_FRAMEBUFFER;
framebuffer->size = sizeof(*framebuffer);
#endif
}
void lb_add_gpios(struct lb_gpios *gpios, const struct lb_gpio *gpio_table,
size_t count)
{
size_t table_size = count * sizeof(struct lb_gpio);
memcpy(&gpios->gpios[gpios->count], gpio_table, table_size);
gpios->count += count;
gpios->size += table_size;
}
#if CONFIG_CHROMEOS
static void lb_gpios(struct lb_header *header)
{
struct lb_gpios *gpios;
struct lb_gpio *g;
gpios = (struct lb_gpios *)lb_new_record(header);
gpios->tag = LB_TAG_GPIO;
gpios->size = sizeof(*gpios);
gpios->count = 0;
fill_lb_gpios(gpios);
printk(BIOS_INFO, "Passing %u GPIOs to payload:\n"
" NAME | PORT | POLARITY | VALUE\n",
gpios->count);
for (g = &gpios->gpios[0]; g < &gpios->gpios[gpios->count]; g++) {
printk(BIOS_INFO, "%16s | ", g->name);
if (g->port == -1)
printk(BIOS_INFO, " undefined | ");
else
printk(BIOS_INFO, "%#.8x | ", g->port);
if (g->polarity == ACTIVE_HIGH)
printk(BIOS_INFO, " high | ");
else
printk(BIOS_INFO, " low | ");
switch (g->value) {
case 0:
printk(BIOS_INFO, " high\n");
break;
case 1:
printk(BIOS_INFO, " low\n");
break;
default:
printk(BIOS_INFO, "undefined\n");
break;
}
}
}
static void lb_vdat(struct lb_header *header)
{
#if CONFIG_HAVE_ACPI_TABLES
struct lb_range *vdat;
vdat = (struct lb_range *)lb_new_record(header);
vdat->tag = LB_TAG_VDAT;
vdat->size = sizeof(*vdat);
acpi_get_vdat_info(&vdat->range_start, &vdat->range_size);
#endif
}
static void lb_vbnv(struct lb_header *header)
{
#if CONFIG_PC80_SYSTEM
struct lb_range *vbnv;
vbnv = (struct lb_range *)lb_new_record(header);
vbnv->tag = LB_TAG_VBNV;
vbnv->size = sizeof(*vbnv);
vbnv->range_start = CONFIG_VBOOT_VBNV_OFFSET + 14;
vbnv->range_size = VBOOT_VBNV_BLOCK_SIZE;
#endif
}
#if CONFIG_VBOOT
static void lb_vboot_handoff(struct lb_header *header)
{
void *addr;
uint32_t size;
struct lb_range *vbho;
if (vboot_get_handoff_info(&addr, &size))
return;
vbho = (struct lb_range *)lb_new_record(header);
vbho->tag = LB_TAB_VBOOT_HANDOFF;
vbho->size = sizeof(*vbho);
vbho->range_start = (intptr_t)addr;
vbho->range_size = size;
}
#else
static inline void lb_vboot_handoff(struct lb_header *header) {}
#endif /* CONFIG_VBOOT */
#endif /* CONFIG_CHROMEOS */
static void lb_board_id(struct lb_header *header)
{
#if CONFIG_BOARD_ID_AUTO || CONFIG_BOARD_ID_MANUAL
struct lb_board_id *bid;
bid = (struct lb_board_id *)lb_new_record(header);
bid->tag = LB_TAG_BOARD_ID;
bid->size = sizeof(*bid);
bid->board_id = board_id();
#endif
}
static void lb_boot_media_params(struct lb_header *header)
{
struct lb_boot_media_params *bmp;
struct cbfs_props props;
const struct region_device *boot_dev;
struct region_device fmrd;
boot_device_init();
if (cbfs_boot_region_properties(&props))
return;
boot_dev = boot_device_ro();
if (boot_dev == NULL)
return;
bmp = (struct lb_boot_media_params *)lb_new_record(header);
bmp->tag = LB_TAG_BOOT_MEDIA_PARAMS;
bmp->size = sizeof(*bmp);
bmp->cbfs_offset = props.offset;
bmp->cbfs_size = props.size;
bmp->boot_media_size = region_device_sz(boot_dev);
bmp->fmap_offset = ~(uint64_t)0;
if (find_fmap_directory(&fmrd) == 0)
bmp->fmap_offset = region_device_offset(&fmrd);
}
static void lb_ram_code(struct lb_header *header)
{
#if IS_ENABLED(CONFIG_RAM_CODE_SUPPORT)
struct lb_ram_code *code;
code = (struct lb_ram_code *)lb_new_record(header);
code->tag = LB_TAG_RAM_CODE;
code->size = sizeof(*code);
code->ram_code = ram_code();
#endif
}
static void add_cbmem_pointers(struct lb_header *header)
{
/*
* These CBMEM sections' addresses are included in the coreboot table
* with the appropriate tags.
*/
const struct section_id {
int cbmem_id;
int table_tag;
} section_ids[] = {
{CBMEM_ID_TIMESTAMP, LB_TAG_TIMESTAMPS},
{CBMEM_ID_CONSOLE, LB_TAG_CBMEM_CONSOLE},
{CBMEM_ID_ACPI_GNVS, LB_TAG_ACPI_GNVS},
{CBMEM_ID_VPD, LB_TAG_VPD},
{CBMEM_ID_WIFI_CALIBRATION, LB_TAG_WIFI_CALIBRATION}
};
int i;
for (i = 0; i < ARRAY_SIZE(section_ids); i++) {
const struct section_id *sid = section_ids + i;
struct lb_cbmem_ref *cbmem_ref;
void *cbmem_addr = cbmem_find(sid->cbmem_id);
if (!cbmem_addr)
continue; /* This section is not present */
cbmem_ref = (struct lb_cbmem_ref *)lb_new_record(header);
if (!cbmem_ref) {
printk(BIOS_ERR, "No more room in coreboot table!\n");
break;
}
cbmem_ref->tag = sid->table_tag;
cbmem_ref->size = sizeof(*cbmem_ref);
cbmem_ref->cbmem_addr = (unsigned long)cbmem_addr;
}
}
static struct lb_mainboard *lb_mainboard(struct lb_header *header)
{
struct lb_record *rec;
struct lb_mainboard *mainboard;
rec = lb_new_record(header);
mainboard = (struct lb_mainboard *)rec;
mainboard->tag = LB_TAG_MAINBOARD;
mainboard->size = ALIGN_UP(sizeof(*mainboard) +
strlen(mainboard_vendor) + 1 +
strlen(mainboard_part_number) + 1, 8);
mainboard->vendor_idx = 0;
mainboard->part_number_idx = strlen(mainboard_vendor) + 1;
memcpy(mainboard->strings + mainboard->vendor_idx,
mainboard_vendor, strlen(mainboard_vendor) + 1);
memcpy(mainboard->strings + mainboard->part_number_idx,
mainboard_part_number, strlen(mainboard_part_number) + 1);
return mainboard;
}
#if CONFIG_USE_OPTION_TABLE
static struct cmos_checksum *lb_cmos_checksum(struct lb_header *header)
{
struct lb_record *rec;
struct cmos_checksum *cmos_checksum;
rec = lb_new_record(header);
cmos_checksum = (struct cmos_checksum *)rec;
cmos_checksum->tag = LB_TAG_OPTION_CHECKSUM;
cmos_checksum->size = (sizeof(*cmos_checksum));
cmos_checksum->range_start = LB_CKS_RANGE_START * 8;
cmos_checksum->range_end = (LB_CKS_RANGE_END * 8) + 7;
cmos_checksum->location = LB_CKS_LOC * 8;
cmos_checksum->type = CHECKSUM_PCBIOS;
return cmos_checksum;
}
#endif
static void lb_strings(struct lb_header *header)
{
static const struct {
uint32_t tag;
const char *string;
} strings[] = {
{ LB_TAG_VERSION, coreboot_version, },
{ LB_TAG_EXTRA_VERSION, coreboot_extra_version, },
{ LB_TAG_BUILD, coreboot_build, },
{ LB_TAG_COMPILE_TIME, coreboot_compile_time, },
};
unsigned int i;
for(i = 0; i < ARRAY_SIZE(strings); i++) {
struct lb_string *rec;
size_t len;
rec = (struct lb_string *)lb_new_record(header);
len = strlen(strings[i].string);
rec->tag = strings[i].tag;
rec->size = ALIGN_UP(sizeof(*rec) + len + 1, 8);
memcpy(rec->string, strings[i].string, len+1);
}
}
static void lb_record_version_timestamp(struct lb_header *header)
{
struct lb_timestamp *rec;
rec = (struct lb_timestamp *)lb_new_record(header);
rec->tag = LB_TAG_VERSION_TIMESTAMP;
rec->size = sizeof(*rec);
rec->timestamp = coreboot_version_timestamp;
}
void __attribute__((weak)) lb_board(struct lb_header *header) { /* NOOP */ }
/*
* It's possible that the system is using a SPI flash as the boot device,
* however it is not probing for devices to fill in specifics. In that
* case don't provide any information as the correct information is
* not known.
*/
void __attribute__((weak)) lb_spi_flash(struct lb_header *header) { /* NOOP */ }
static struct lb_forward *lb_forward(struct lb_header *header, struct lb_header *next_header)
{
struct lb_record *rec;
struct lb_forward *forward;
rec = lb_new_record(header);
forward = (struct lb_forward *)rec;
forward->tag = LB_TAG_FORWARD;
forward->size = sizeof(*forward);
forward->forward = (uint64_t)(unsigned long)next_header;
return forward;
}
static unsigned long lb_table_fini(struct lb_header *head)
{
struct lb_record *rec, *first_rec;
rec = lb_last_record(head);
if (head->table_entries)
head->table_bytes += rec->size;
first_rec = lb_first_record(head);
head->table_checksum = compute_ip_checksum(first_rec, head->table_bytes);
head->header_checksum = 0;
head->header_checksum = compute_ip_checksum(head, sizeof(*head));
printk(BIOS_DEBUG,
"Wrote coreboot table at: %p, 0x%x bytes, checksum %x\n",
head, head->table_bytes, head->table_checksum);
return (unsigned long)rec + rec->size;
}
size_t write_coreboot_forwarding_table(uintptr_t entry, uintptr_t target)
{
struct lb_header *head;
printk(BIOS_DEBUG, "Writing table forward entry at 0x%p\n",
(void *)entry);
head = lb_table_init(entry);
lb_forward(head, (struct lb_header *)target);
return (uintptr_t)lb_table_fini(head) - entry;
}
static uintptr_t write_coreboot_table(uintptr_t rom_table_end)
{
struct lb_header *head;
printk(BIOS_DEBUG, "Writing coreboot table at 0x%08lx\n",
(long)rom_table_end);
head = lb_table_init(rom_table_end);
#if CONFIG_USE_OPTION_TABLE
{
struct cmos_option_table *option_table =
cbfs_boot_map_with_leak("cmos_layout.bin",
CBFS_COMPONENT_CMOS_LAYOUT, NULL);
if (option_table) {
struct lb_record *rec_dest = lb_new_record(head);
/* Copy the option config table, it's already a lb_record... */
memcpy(rec_dest, option_table, option_table->size);
/* Create cmos checksum entry in coreboot table */
lb_cmos_checksum(head);
} else {
printk(BIOS_ERR, "cmos_layout.bin could not be found!\n");
}
}
#endif
/* Initialize the memory map at boot time. */
bootmem_init();
/* No other memory areas can be added after the memory table has been
* committed as the entries won't show up in the serialize mem table. */
bootmem_write_memory_table(lb_memory(head));
/* Record our motherboard */
lb_mainboard(head);
/* Record the serial ports and consoles */
#if CONFIG_CONSOLE_SERIAL
uart_fill_lb(head);
#endif
#if CONFIG_CONSOLE_USB
lb_add_console(LB_TAG_CONSOLE_EHCI, head);
#endif
/* Record our various random string information */
lb_strings(head);
lb_record_version_timestamp(head);
/* Record our framebuffer */
lb_framebuffer(head);
#if CONFIG_CHROMEOS
/* Record our GPIO settings (ChromeOS specific) */
lb_gpios(head);
/* pass along the VDAT buffer address */
lb_vdat(head);
/* pass along VBNV offsets in CMOS */
lb_vbnv(head);
/* pass along the vboot_handoff address. */
lb_vboot_handoff(head);
#endif
/* Add board ID if available */
lb_board_id(head);
/* Add RAM config if available */
lb_ram_code(head);
/* Add SPI flash description if available */
if (IS_ENABLED(CONFIG_BOOT_DEVICE_SPI_FLASH))
lb_spi_flash(head);
add_cbmem_pointers(head);
/* Add board-specific table entries, if any. */
lb_board(head);
#if IS_ENABLED(CONFIG_CHROMEOS_RAMOOPS)
lb_ramoops(head);
#endif
lb_boot_media_params(head);
/* Add architecture records. */
lb_arch_add_records(head);
/* Add all cbmem entries into the coreboot tables. */
cbmem_add_records_to_cbtable(head);
/* Remember where my valid memory ranges are */
return lb_table_fini(head);
}
void write_tables(void)
{
uintptr_t cbtable_start;
uintptr_t cbtable_end;
size_t cbtable_size;
const size_t max_table_size = COREBOOT_TABLE_SIZE;
cbtable_start = (uintptr_t)cbmem_add(CBMEM_ID_CBTABLE, max_table_size);
if (!cbtable_start) {
printk(BIOS_ERR, "Could not add CBMEM for coreboot table.\n");
return;
}
/* Add architecture specific tables. */
arch_write_tables(cbtable_start);
/* Write the coreboot table. */
cbtable_end = write_coreboot_table(cbtable_start);
cbtable_size = cbtable_end - cbtable_start;
if (cbtable_size > max_table_size) {
printk(BIOS_ERR, "%s: coreboot table didn't fit (%zx/%zx)\n",
__func__, cbtable_size, max_table_size);
}
printk(BIOS_DEBUG, "coreboot table: %zd bytes.\n", cbtable_size);
/* Print CBMEM sections */
cbmem_list();
}
|