Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2012 The ChromiumOS Authors. All rights reserved. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; version 2 of the License. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | */ |
| 19 | |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 20 | #include <stdio.h> |
| 21 | #include <stdlib.h> |
| 22 | #include <string.h> |
Stefan Reinauer | 1e0e556 | 2013-01-02 15:43:56 -0800 | [diff] [blame] | 23 | #include <unistd.h> |
| 24 | #include <getopt.h> |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 25 | #include <errno.h> |
| 26 | #include <fcntl.h> |
| 27 | #include <sys/types.h> |
| 28 | #include <sys/stat.h> |
| 29 | #include <sys/mman.h> |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 30 | |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 31 | #define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0])) |
| 32 | #define MAP_BYTES (1024*1024) |
| 33 | |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 34 | #include "boot/coreboot_tables.h" |
| 35 | |
| 36 | typedef uint16_t u16; |
| 37 | typedef uint32_t u32; |
| 38 | typedef uint64_t u64; |
| 39 | |
| 40 | #include "cbmem.h" |
| 41 | #include "timestamp.h" |
| 42 | |
Stefan Reinauer | 1e0e556 | 2013-01-02 15:43:56 -0800 | [diff] [blame] | 43 | #define CBMEM_VERSION "1.0" |
| 44 | |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 45 | /* verbose output? */ |
| 46 | static int verbose = 0; |
| 47 | #define debug(x...) if(verbose) printf(x) |
| 48 | |
| 49 | /* File handle used to access /dev/mem */ |
| 50 | static int fd; |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 51 | |
| 52 | /* |
| 53 | * calculate ip checksum (16 bit quantities) on a passed in buffer. In case |
| 54 | * the buffer length is odd last byte is excluded from the calculation |
| 55 | */ |
| 56 | static u16 ipchcksum(const void *addr, unsigned size) |
| 57 | { |
| 58 | const u16 *p = addr; |
| 59 | unsigned i, n = size / 2; /* don't expect odd sized blocks */ |
| 60 | u32 sum = 0; |
| 61 | |
| 62 | for (i = 0; i < n; i++) |
| 63 | sum += p[i]; |
| 64 | |
| 65 | sum = (sum >> 16) + (sum & 0xffff); |
| 66 | sum += (sum >> 16); |
| 67 | sum = ~sum & 0xffff; |
| 68 | return (u16) sum; |
| 69 | } |
| 70 | |
| 71 | /* |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 72 | * Functions to map / unmap physical memory into virtual address space. These |
| 73 | * functions always maps 1MB at a time and can only map one area at once. |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 74 | */ |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 75 | static void *mapped_virtual; |
| 76 | static void *map_memory(u64 physical) |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 77 | { |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 78 | void *v; |
| 79 | off_t p; |
| 80 | int page = getpagesize(); |
| 81 | |
| 82 | /* Mapped memory must be aligned to page size */ |
| 83 | p = physical & ~(page - 1); |
| 84 | |
| 85 | debug("Mapping 1MB of physical memory at %zx.\n", p); |
| 86 | |
| 87 | v = mmap(NULL, MAP_BYTES, PROT_READ, MAP_SHARED, fd, p); |
| 88 | |
| 89 | if (v == MAP_FAILED) { |
| 90 | fprintf(stderr, "Failed to mmap /dev/mem: %s\n", |
| 91 | strerror(errno)); |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 92 | exit(1); |
| 93 | } |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 94 | |
| 95 | /* Remember what we actually mapped ... */ |
| 96 | mapped_virtual = v; |
| 97 | |
| 98 | /* ... but return address to the physical memory that was requested */ |
| 99 | v += physical & (page-1); |
| 100 | |
| 101 | return v; |
| 102 | } |
| 103 | |
| 104 | static void unmap_memory(void) |
| 105 | { |
| 106 | debug("Unmapping 1MB of virtual memory at %p.\n", mapped_virtual); |
| 107 | munmap(mapped_virtual, MAP_BYTES); |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 108 | } |
| 109 | |
| 110 | /* |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 111 | * Try finding the timestamp table and coreboot cbmem console starting from the |
| 112 | * passed in memory offset. Could be called recursively in case a forwarding |
| 113 | * entry is found. |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 114 | * |
| 115 | * Returns pointer to a memory buffer containg the timestamp table or zero if |
| 116 | * none found. |
| 117 | */ |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 118 | |
| 119 | static struct lb_cbmem_ref timestamps; |
| 120 | static struct lb_cbmem_ref console; |
Stefan Reinauer | c019907 | 2013-01-07 16:26:10 -0800 | [diff] [blame] | 121 | static struct lb_memory_range cbmem; |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 122 | |
| 123 | static int parse_cbtable(u64 address) |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 124 | { |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 125 | int i, found = 0; |
| 126 | void *buf; |
| 127 | |
| 128 | debug("Looking for coreboot table at %lx\n", address); |
| 129 | buf = map_memory(address); |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 130 | |
| 131 | /* look at every 16 bytes within 4K of the base */ |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 132 | |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 133 | for (i = 0; i < 0x1000; i += 0x10) { |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 134 | struct lb_header *lbh; |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 135 | struct lb_record* lbr_p; |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 136 | void *lbtable; |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 137 | int j; |
| 138 | |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 139 | lbh = (struct lb_header *)(buf + i); |
| 140 | if (memcmp(lbh->signature, "LBIO", sizeof(lbh->signature)) || |
| 141 | !lbh->header_bytes || |
| 142 | ipchcksum(lbh, sizeof(*lbh))) { |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 143 | continue; |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 144 | } |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 145 | lbtable = buf + i + lbh->header_bytes; |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 146 | |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 147 | if (ipchcksum(lbtable, lbh->table_bytes) != |
| 148 | lbh->table_checksum) { |
| 149 | debug("Signature found, but wrong checksum.\n"); |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 150 | continue; |
| 151 | } |
| 152 | |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 153 | found = 1; |
| 154 | debug("Found!\n"); |
| 155 | |
| 156 | for (j = 0; j < lbh->table_bytes; j += lbr_p->size) { |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 157 | /* look for the timestamp table */ |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 158 | lbr_p = (struct lb_record*) ((char *)lbtable + j); |
| 159 | debug(" coreboot table entry 0x%02x\n", lbr_p->tag); |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 160 | switch (lbr_p->tag) { |
Stefan Reinauer | c019907 | 2013-01-07 16:26:10 -0800 | [diff] [blame] | 161 | case LB_TAG_MEMORY: { |
| 162 | int i = 0; |
| 163 | debug(" Found memory map.\n"); |
| 164 | struct lb_memory *memory = |
| 165 | (struct lb_memory *)lbr_p; |
| 166 | while ((char *)&memory->map[i] < ((char *)lbtable |
| 167 | + lbr_p->size)) { |
| 168 | if (memory->map[i].type == LB_MEM_TABLE) { |
| 169 | debug(" LB_MEM_TABLE found.\n"); |
| 170 | /* The last one found is CBMEM */ |
| 171 | cbmem = memory->map[i]; |
| 172 | } |
| 173 | i++; |
| 174 | } |
| 175 | continue; |
| 176 | } |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 177 | case LB_TAG_TIMESTAMPS: { |
Stefan Reinauer | d7144dc | 2013-01-07 15:25:37 -0800 | [diff] [blame] | 178 | debug(" Found timestamp table.\n"); |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 179 | timestamps = *(struct lb_cbmem_ref *) lbr_p; |
| 180 | continue; |
| 181 | } |
| 182 | case LB_TAG_CBMEM_CONSOLE: { |
Stefan Reinauer | d7144dc | 2013-01-07 15:25:37 -0800 | [diff] [blame] | 183 | debug(" Found cbmem console.\n"); |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 184 | console = *(struct lb_cbmem_ref *) lbr_p; |
| 185 | continue; |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 186 | } |
| 187 | case LB_TAG_FORWARD: { |
| 188 | /* |
| 189 | * This is a forwarding entry - repeat the |
| 190 | * search at the new address. |
| 191 | */ |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 192 | struct lb_forward lbf_p = |
| 193 | *(struct lb_forward *) lbr_p; |
Stefan Reinauer | d7144dc | 2013-01-07 15:25:37 -0800 | [diff] [blame] | 194 | debug(" Found forwarding entry.\n"); |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 195 | unmap_memory(); |
| 196 | return parse_cbtable(lbf_p.forward); |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 197 | } |
| 198 | default: |
| 199 | break; |
| 200 | } |
| 201 | |
| 202 | } |
| 203 | } |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 204 | unmap_memory(); |
| 205 | |
| 206 | return found; |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 207 | } |
| 208 | |
| 209 | /* |
| 210 | * read CPU frequency from a sysfs file, return an frequency in Kilohertz as |
| 211 | * an int or exit on any error. |
| 212 | */ |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 213 | static u64 get_cpu_freq_KHz(void) |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 214 | { |
| 215 | FILE *cpuf; |
| 216 | char freqs[100]; |
| 217 | int size; |
| 218 | char *endp; |
| 219 | u64 rv; |
| 220 | |
| 221 | const char* freq_file = |
| 222 | "/sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq"; |
| 223 | |
| 224 | cpuf = fopen(freq_file, "r"); |
| 225 | if (!cpuf) { |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 226 | fprintf(stderr, "Could not open %s: %s\n", |
| 227 | freq_file, strerror(errno)); |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 228 | exit(1); |
| 229 | } |
| 230 | |
| 231 | memset(freqs, 0, sizeof(freqs)); |
| 232 | size = fread(freqs, 1, sizeof(freqs), cpuf); |
| 233 | if (!size || (size == sizeof(freqs))) { |
| 234 | fprintf(stderr, "Wrong number of bytes(%d) read from %s\n", |
| 235 | size, freq_file); |
| 236 | exit(1); |
| 237 | } |
| 238 | fclose(cpuf); |
| 239 | rv = strtoull(freqs, &endp, 10); |
| 240 | |
| 241 | if (*endp == '\0' || *endp == '\n') |
| 242 | return rv; |
| 243 | fprintf(stderr, "Wrong formatted value ^%s^ read from %s\n", |
| 244 | freqs, freq_file); |
| 245 | exit(1); |
| 246 | } |
| 247 | |
| 248 | /* |
| 249 | * Print an integer in 'normalized' form - with commas separating every three |
| 250 | * decimal orders. The 'comma' parameter indicates if a comma is needed after |
| 251 | * the value is printed. |
| 252 | */ |
| 253 | static void print_norm(u64 v, int comma) |
| 254 | { |
| 255 | int first_triple = 1; |
| 256 | |
| 257 | if (v > 1000) { |
| 258 | /* print the higher order sections first */ |
| 259 | print_norm(v / 1000, 1); |
| 260 | first_triple = 0; |
| 261 | } |
| 262 | if (first_triple) |
| 263 | printf("%d", (u32)(v % 1000)); |
| 264 | else |
| 265 | printf("%3.3d", (u32)(v % 1000)); |
| 266 | if (comma) |
| 267 | printf(","); |
| 268 | } |
| 269 | |
| 270 | /* dump the timestamp table */ |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 271 | static void dump_timestamps(void) |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 272 | { |
| 273 | int i; |
| 274 | u64 cpu_freq_MHz = get_cpu_freq_KHz() / 1000; |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 275 | struct timestamp_table *tst_p; |
| 276 | |
| 277 | if (timestamps.tag != LB_TAG_TIMESTAMPS) { |
| 278 | fprintf(stderr, "No timestamps found in coreboot table.\n"); |
| 279 | return; |
| 280 | } |
| 281 | |
| 282 | tst_p = (struct timestamp_table *) |
| 283 | map_memory((unsigned long)timestamps.cbmem_addr); |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 284 | |
| 285 | printf("%d entries total:\n\n", tst_p->num_entries); |
| 286 | for (i = 0; i < tst_p->num_entries; i++) { |
| 287 | const struct timestamp_entry *tse_p = tst_p->entries + i; |
| 288 | |
| 289 | printf("%4d:", tse_p->entry_id); |
| 290 | print_norm(tse_p->entry_stamp / cpu_freq_MHz, 0); |
| 291 | if (i) { |
| 292 | printf(" ("); |
| 293 | print_norm((tse_p->entry_stamp - |
| 294 | tse_p[-1].entry_stamp) / |
| 295 | cpu_freq_MHz, 0); |
| 296 | printf(")"); |
| 297 | } |
| 298 | printf("\n"); |
| 299 | } |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 300 | |
| 301 | unmap_memory(); |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 302 | } |
| 303 | |
Stefan Reinauer | 19f8756 | 2013-01-07 13:37:12 -0800 | [diff] [blame] | 304 | /* dump the cbmem console */ |
| 305 | static void dump_console(void) |
| 306 | { |
| 307 | void *console_p; |
| 308 | char *console_c; |
| 309 | uint32_t size; |
| 310 | |
| 311 | if (console.tag != LB_TAG_CBMEM_CONSOLE) { |
| 312 | fprintf(stderr, "No console found in coreboot table.\n"); |
| 313 | return; |
| 314 | } |
| 315 | |
| 316 | console_p = map_memory((unsigned long)console.cbmem_addr); |
| 317 | /* The in-memory format of the console area is: |
| 318 | * u32 size |
| 319 | * u32 cursor |
| 320 | * char console[size] |
| 321 | * Hence we have to add 8 to get to the actual console string. |
| 322 | */ |
| 323 | size = *(uint32_t *)console_p; |
| 324 | console_c = malloc(size + 1); |
| 325 | if (!console_c) { |
| 326 | fprintf(stderr, "Not enough memory for console.\n"); |
| 327 | exit(1); |
| 328 | } |
| 329 | |
| 330 | memcpy(console_c, console_p + 8, size); |
| 331 | console_c[size] = 0; |
| 332 | |
| 333 | printf("%s", console_c); |
| 334 | |
| 335 | free(console_c); |
| 336 | |
| 337 | unmap_memory(); |
| 338 | } |
| 339 | |
Stefan Reinauer | c019907 | 2013-01-07 16:26:10 -0800 | [diff] [blame] | 340 | #define CBMEM_MAGIC 0x434f5245 |
| 341 | #define MAX_CBMEM_ENTRIES 16 |
| 342 | |
| 343 | struct cbmem_entry { |
| 344 | uint32_t magic; |
| 345 | uint32_t id; |
| 346 | uint64_t base; |
| 347 | uint64_t size; |
| 348 | }; |
| 349 | |
| 350 | void dump_cbmem_toc(void) |
| 351 | { |
| 352 | int i; |
| 353 | uint64_t start; |
| 354 | struct cbmem_entry *entries; |
| 355 | |
| 356 | if (cbmem.type != LB_MEM_TABLE) { |
| 357 | fprintf(stderr, "No coreboot table area found!\n"); |
| 358 | return; |
| 359 | } |
| 360 | |
| 361 | start = unpack_lb64(cbmem.start); |
| 362 | |
| 363 | entries = (struct cbmem_entry *)map_memory(start); |
| 364 | |
| 365 | printf("CBMEM table of contents:\n"); |
| 366 | printf(" ID START LENGTH\n"); |
| 367 | for (i=0; i<MAX_CBMEM_ENTRIES; i++) { |
| 368 | if (entries[i].magic != CBMEM_MAGIC) |
| 369 | break; |
| 370 | |
| 371 | printf("%2d. ", i); |
| 372 | switch (entries[i].id) { |
| 373 | case CBMEM_ID_FREESPACE: printf("FREE SPACE "); break; |
| 374 | case CBMEM_ID_GDT: printf("GDT "); break; |
| 375 | case CBMEM_ID_ACPI: printf("ACPI "); break; |
| 376 | case CBMEM_ID_ACPI_GNVS: printf("ACPI GNVS "); break; |
| 377 | case CBMEM_ID_CBTABLE: printf("COREBOOTE "); break; |
| 378 | case CBMEM_ID_PIRQ: printf("IRQ TABLE "); break; |
| 379 | case CBMEM_ID_MPTABLE: printf("SMP TABLE "); break; |
| 380 | case CBMEM_ID_RESUME: printf("ACPI RESUME "); break; |
| 381 | case CBMEM_ID_RESUME_SCRATCH: printf("ACPI SCRATCH"); break; |
| 382 | case CBMEM_ID_SMBIOS: printf("SMBIOS "); break; |
| 383 | case CBMEM_ID_TIMESTAMP: printf("TIME STAMP "); break; |
| 384 | case CBMEM_ID_MRCDATA: printf("MRC DATA "); break; |
| 385 | case CBMEM_ID_CONSOLE: printf("CONSOLE "); break; |
| 386 | case CBMEM_ID_ELOG: printf("ELOG "); break; |
| 387 | default: printf("%08x ", |
| 388 | entries[i].id); break; |
| 389 | } |
| 390 | printf(" 0x%08jx 0x%08jx\n", (uintmax_t)entries[i].base, |
| 391 | (uintmax_t)entries[i].size); |
| 392 | } |
| 393 | unmap_memory(); |
| 394 | } |
Stefan Reinauer | 19f8756 | 2013-01-07 13:37:12 -0800 | [diff] [blame] | 395 | |
Stefan Reinauer | 1e0e556 | 2013-01-02 15:43:56 -0800 | [diff] [blame] | 396 | void print_version(void) |
| 397 | { |
| 398 | printf("cbmem v%s -- ", CBMEM_VERSION); |
| 399 | printf("Copyright (C) 2012 The ChromiumOS Authors. All rights reserved.\n\n"); |
| 400 | printf( |
| 401 | "This program is free software: you can redistribute it and/or modify\n" |
| 402 | "it under the terms of the GNU General Public License as published by\n" |
| 403 | "the Free Software Foundation, version 2 of the License.\n\n" |
| 404 | "This program is distributed in the hope that it will be useful,\n" |
| 405 | "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" |
| 406 | "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" |
| 407 | "GNU General Public License for more details.\n\n" |
| 408 | "You should have received a copy of the GNU General Public License\n" |
| 409 | "along with this program. If not, see <http://www.gnu.org/licenses/>.\n\n"); |
| 410 | } |
| 411 | |
| 412 | void print_usage(const char *name) |
| 413 | { |
| 414 | printf("usage: %s [-vh?]\n", name); |
| 415 | printf("\n" |
Stefan Reinauer | 19f8756 | 2013-01-07 13:37:12 -0800 | [diff] [blame] | 416 | " -c | --console: print cbmem console\n" |
Stefan Reinauer | c019907 | 2013-01-07 16:26:10 -0800 | [diff] [blame] | 417 | " -l | --list: print cbmem table of contents\n" |
Stefan Reinauer | 19f8756 | 2013-01-07 13:37:12 -0800 | [diff] [blame] | 418 | " -t | --timestamps: print timestamp information\n" |
| 419 | " -V | --verbose: verbose (debugging) output\n" |
Stefan Reinauer | 1e0e556 | 2013-01-02 15:43:56 -0800 | [diff] [blame] | 420 | " -v | --version: print the version\n" |
| 421 | " -h | --help: print this help\n" |
| 422 | "\n"); |
| 423 | exit(1); |
| 424 | } |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 425 | |
| 426 | int main(int argc, char** argv) |
| 427 | { |
| 428 | int j; |
Stefan Reinauer | 1e0e556 | 2013-01-02 15:43:56 -0800 | [diff] [blame] | 429 | static const int possible_base_addresses[] = { 0, 0xf0000 }; |
| 430 | |
Stefan Reinauer | 19f8756 | 2013-01-07 13:37:12 -0800 | [diff] [blame] | 431 | int print_defaults = 1; |
| 432 | int print_console = 0; |
Stefan Reinauer | c019907 | 2013-01-07 16:26:10 -0800 | [diff] [blame] | 433 | int print_list = 0; |
Stefan Reinauer | 19f8756 | 2013-01-07 13:37:12 -0800 | [diff] [blame] | 434 | int print_timestamps = 0; |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 435 | |
Stefan Reinauer | 1e0e556 | 2013-01-02 15:43:56 -0800 | [diff] [blame] | 436 | int opt, option_index = 0; |
| 437 | static struct option long_options[] = { |
Stefan Reinauer | 19f8756 | 2013-01-07 13:37:12 -0800 | [diff] [blame] | 438 | {"console", 0, 0, 'c'}, |
Stefan Reinauer | c019907 | 2013-01-07 16:26:10 -0800 | [diff] [blame] | 439 | {"list", 0, 0, 'l'}, |
Stefan Reinauer | 19f8756 | 2013-01-07 13:37:12 -0800 | [diff] [blame] | 440 | {"timestamps", 0, 0, 't'}, |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 441 | {"verbose", 0, 0, 'V'}, |
Stefan Reinauer | 1e0e556 | 2013-01-02 15:43:56 -0800 | [diff] [blame] | 442 | {"version", 0, 0, 'v'}, |
| 443 | {"help", 0, 0, 'h'}, |
| 444 | {0, 0, 0, 0} |
| 445 | }; |
Stefan Reinauer | c019907 | 2013-01-07 16:26:10 -0800 | [diff] [blame] | 446 | while ((opt = getopt_long(argc, argv, "cltVvh?", |
Stefan Reinauer | 1e0e556 | 2013-01-02 15:43:56 -0800 | [diff] [blame] | 447 | long_options, &option_index)) != EOF) { |
| 448 | switch (opt) { |
Stefan Reinauer | 19f8756 | 2013-01-07 13:37:12 -0800 | [diff] [blame] | 449 | case 'c': |
| 450 | print_console = 1; |
| 451 | print_defaults = 0; |
| 452 | break; |
Stefan Reinauer | c019907 | 2013-01-07 16:26:10 -0800 | [diff] [blame] | 453 | case 'l': |
| 454 | print_list = 1; |
| 455 | print_defaults = 0; |
| 456 | break; |
Stefan Reinauer | 19f8756 | 2013-01-07 13:37:12 -0800 | [diff] [blame] | 457 | case 't': |
| 458 | print_timestamps = 1; |
| 459 | print_defaults = 0; |
| 460 | break; |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 461 | case 'V': |
| 462 | verbose = 1; |
| 463 | break; |
Stefan Reinauer | 1e0e556 | 2013-01-02 15:43:56 -0800 | [diff] [blame] | 464 | case 'v': |
| 465 | print_version(); |
| 466 | exit(0); |
| 467 | break; |
| 468 | case 'h': |
| 469 | case '?': |
| 470 | default: |
| 471 | print_usage(argv[0]); |
| 472 | exit(0); |
| 473 | break; |
| 474 | } |
| 475 | } |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 476 | |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 477 | fd = open("/dev/mem", O_RDONLY, 0); |
| 478 | if (fd < 0) { |
| 479 | fprintf(stderr, "Failed to gain memory access: %s\n", |
| 480 | strerror(errno)); |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 481 | return 1; |
| 482 | } |
| 483 | |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 484 | /* Find and parse coreboot table */ |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 485 | for (j = 0; j < ARRAY_SIZE(possible_base_addresses); j++) { |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 486 | if (parse_cbtable(possible_base_addresses[j])) |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 487 | break; |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 488 | } |
| 489 | |
Stefan Reinauer | 19f8756 | 2013-01-07 13:37:12 -0800 | [diff] [blame] | 490 | if (print_console) |
| 491 | dump_console(); |
| 492 | |
Stefan Reinauer | c019907 | 2013-01-07 16:26:10 -0800 | [diff] [blame] | 493 | if (print_list) |
| 494 | dump_cbmem_toc(); |
| 495 | |
Stefan Reinauer | 19f8756 | 2013-01-07 13:37:12 -0800 | [diff] [blame] | 496 | if (print_defaults || print_timestamps) |
Stefan Reinauer | 05cbce6 | 2013-01-03 14:30:33 -0800 | [diff] [blame] | 497 | dump_timestamps(); |
| 498 | |
| 499 | close(fd); |
Vadim Bendebury | 6d18fd0 | 2012-09-27 19:24:07 -0700 | [diff] [blame] | 500 | return 0; |
| 501 | } |