1 /*-
2 * Copyright (c) 2005-2009 Jung-uk Kim <jkim@FreeBSD.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27 #include <stand.h>
28 #include <sys/endian.h>
29
30 #define PTOV(x) ptov(x)
31
32 /* Only enable 64-bit entry point if it makes sense */
33 #if __SIZEOF_POINTER__ > 4
34 #define HAS_SMBV3 1
35 #endif
36
37 /*
38 * Detect SMBIOS and export information about the SMBIOS into the
39 * environment.
40 *
41 * System Management BIOS Reference Specification, v2.6 Final
42 * http://www.dmtf.org/standards/published_documents/DSP0134_2.6.0.pdf
43 *
44 * System Management BIOS (SMBIOS) Reference Specification, 3.6.0
45 * https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.6.0.pdf
46 */
47
48 /*
49 * The first quoted paragraph below can also be found in section 2.1.1 SMBIOS
50 * Structure Table Entry Point of System Management BIOS Reference
51 * Specification, v2.6 Final
52 *
53 * (From System Management BIOS (SMBIOS) Reference Specification, 3.6.0)
54 * 5.2.1 SMBIOS 2.1 (32-bit) Entry Point
55 *
56 * "On non-UEFI systems, the 32-bit SMBIOS Entry Point structure, can be
57 * located by application software by searching for the anchor-string on
58 * paragraph (16-byte) boundaries within the physical memory address
59 * range 000F0000h to 000FFFFFh. This entry point encapsulates an intermediate
60 * anchor string that is used by some existing DMI browsers.
61 *
62 * On UEFI-based systems, the SMBIOS Entry Point structure can be located by
63 * looking in the EFI Configuration Table for the SMBIOS GUID
64 * (SMBIOS_TABLE_GUID, {EB9D2D31-2D88-11D3-9A16-0090273FC14D}) and using the
65 * associated pointer. See section 4.6 of the UEFI Specification for details.
66 * See section 2.3 of the UEFI Specification for how to report the containing
67 * memory type.
68 *
69 * NOTE While the SMBIOS Major and Minor Versions (offsets 06h and 07h)
70 * currently duplicate the information that is present in the SMBIOS BCD
71 * Revision (offset 1Eh), they provide a path for future growth in this
72 * specification. The BCD Revision, for example, provides only a single digit
73 * for each of the major and minor version numbers."
74 *
75 * 5.2.2 SMBIOS 860 3.0 (64-bit) Entry Point
76 *
77 * "On non-UEFI systems, the 64-bit SMBIOS Entry Point structure can be located
78 * by application software by searching for the anchor-string on paragraph
79 * (16-byte) boundaries within the physical memory address range 000F0000h to
80 * 000FFFFFh.
81 *
82 * On UEFI-based systems, the SMBIOS Entry Point structure can be located by
83 * looking in the EFI Configuration Table for the SMBIOS 3.x GUID
84 * (SMBIOS3_TABLE_GUID, {F2FD1544-9794-4A2C-992E-E5BBCF20E394}) and using the
85 * associated pointer. See section 4.6 of the UEFI Specification for details.
86 * See section 2.3 of the UEFI Specification for how to report the containing
87 * memory type."
88 */
89 #define SMBIOS_START 0xf0000
90 #define SMBIOS_LENGTH 0x10000
91 #define SMBIOS_STEP 0x10
92 #define SMBIOS_SIG "_SM_"
93 #define SMBIOS3_SIG "_SM3_"
94 #define SMBIOS_DMI_SIG "_DMI_"
95
96 /*
97 * 5.1 General
98 *...
99 * NOTE The Entry Point Structure and all SMBIOS structures assume a
100 * little-endian ordering convention...
101 * ...
102 *
103 * We use memcpy to avoid unaligned access to memory. To normal memory, this is
104 * fine, but the memory we are using might be mmap'd /dev/mem which under Linux
105 * on aarch64 doesn't allow unaligned access. leXdec and friends can't be used
106 * because those can optimize to an unaligned load (which often is fine, but not
107 * for mmap'd /dev/mem which has special memory attributes).
108 */
SMBIOS_GET8(const caddr_t base,int off)109 static inline uint8_t SMBIOS_GET8(const caddr_t base, int off) { return (base[off]); }
110
111 static inline uint16_t
SMBIOS_GET16(const caddr_t base,int off)112 SMBIOS_GET16(const caddr_t base, int off)
113 {
114 uint16_t v;
115
116 memcpy(&v, base + off, sizeof(v));
117 return (le16toh(v));
118 }
119
120 static inline uint32_t
SMBIOS_GET32(const caddr_t base,int off)121 SMBIOS_GET32(const caddr_t base, int off)
122 {
123 uint32_t v;
124
125 memcpy(&v, base + off, sizeof(v));
126 return (le32toh(v));
127 }
128
129 static inline uint64_t
SMBIOS_GET64(const caddr_t base,int off)130 SMBIOS_GET64(const caddr_t base, int off)
131 {
132 uint64_t v;
133
134 memcpy(&v, base + off, sizeof(v));
135 return (le64toh(v));
136 }
137
138 #define SMBIOS_GETLEN(base) SMBIOS_GET8(base, 0x01)
139 #define SMBIOS_GETSTR(base) ((base) + SMBIOS_GETLEN(base))
140
141 struct smbios_attr {
142 int probed;
143 caddr_t addr;
144 size_t length;
145 size_t count;
146 int major;
147 int minor;
148 int ver;
149 const char* bios_vendor;
150 const char* maker;
151 const char* product;
152 uint32_t enabled_memory;
153 uint32_t old_enabled_memory;
154 uint8_t enabled_sockets;
155 uint8_t populated_sockets;
156 };
157
158 static struct smbios_attr smbios;
159 #ifdef HAS_SMBV3
160 static int isv3;
161 #endif
162
163 static uint8_t
smbios_checksum(const caddr_t addr,const uint8_t len)164 smbios_checksum(const caddr_t addr, const uint8_t len)
165 {
166 uint8_t sum;
167 int i;
168
169 for (sum = 0, i = 0; i < len; i++)
170 sum += SMBIOS_GET8(addr, i);
171 return (sum);
172 }
173
174 static caddr_t
smbios_sigsearch(const caddr_t addr,const uint32_t len)175 smbios_sigsearch(const caddr_t addr, const uint32_t len)
176 {
177 caddr_t cp;
178
179 /* Search on 16-byte boundaries. */
180 for (cp = addr; cp < addr + len; cp += SMBIOS_STEP) {
181 /* v2.1, 32-bit Entry point */
182 if (strncmp(cp, SMBIOS_SIG, sizeof(SMBIOS_SIG) - 1) == 0 &&
183 smbios_checksum(cp, SMBIOS_GET8(cp, 0x05)) == 0 &&
184 strncmp(cp + 0x10, SMBIOS_DMI_SIG, 5) == 0 &&
185 smbios_checksum(cp + 0x10, 0x0f) == 0)
186 return (cp);
187
188 #ifdef HAS_SMBV3
189 /* v3.0, 64-bit Entry point */
190 if (strncmp(cp, SMBIOS3_SIG, sizeof(SMBIOS3_SIG) - 1) == 0 &&
191 smbios_checksum(cp, SMBIOS_GET8(cp, 0x06)) == 0) {
192 isv3 = 1;
193 return (cp);
194 }
195 #endif
196 }
197 return (NULL);
198 }
199
200 static const char*
smbios_getstring(caddr_t addr,const int offset)201 smbios_getstring(caddr_t addr, const int offset)
202 {
203 caddr_t cp;
204 int i, idx;
205
206 idx = SMBIOS_GET8(addr, offset);
207 if (idx != 0) {
208 cp = SMBIOS_GETSTR(addr);
209 for (i = 1; i < idx; i++)
210 cp += strlen(cp) + 1;
211 return cp;
212 }
213 return (NULL);
214 }
215
216 static void
smbios_setenv(const char * name,caddr_t addr,const int offset)217 smbios_setenv(const char *name, caddr_t addr, const int offset)
218 {
219 const char* val;
220
221 val = smbios_getstring(addr, offset);
222 if (val != NULL)
223 setenv(name, val, 1);
224 }
225
226 #ifdef SMBIOS_SERIAL_NUMBERS
227
228 #define UUID_SIZE 16
229 #define UUID_TYPE uint32_t
230 #define UUID_STEP sizeof(UUID_TYPE)
231 #define UUID_ALL_BITS (UUID_SIZE / UUID_STEP)
232 #define UUID_GET(base, off) SMBIOS_GET32(base, off)
233
234 static void
smbios_setuuid(const char * name,const caddr_t addr,const int ver __unused)235 smbios_setuuid(const char *name, const caddr_t addr, const int ver __unused)
236 {
237 char uuid[37];
238 int byteorder, i, ones, zeros;
239 UUID_TYPE n;
240 uint32_t f1;
241 uint16_t f2, f3;
242
243 for (i = 0, ones = 0, zeros = 0; i < UUID_SIZE; i += UUID_STEP) {
244 n = UUID_GET(addr, i) + 1;
245 if (zeros == 0 && n == 0)
246 ones++;
247 else if (ones == 0 && n == 1)
248 zeros++;
249 else
250 break;
251 }
252
253 if (ones != UUID_ALL_BITS && zeros != UUID_ALL_BITS) {
254 /*
255 * 3.3.2.1 System UUID
256 *
257 * "Although RFC 4122 recommends network byte order for all
258 * fields, the PC industry (including the ACPI, UEFI, and
259 * Microsoft specifications) has consistently used
260 * little-endian byte encoding for the first three fields:
261 * time_low, time_mid, time_hi_and_version. The same encoding,
262 * also known as wire format, should also be used for the
263 * SMBIOS representation of the UUID."
264 *
265 * Note: We use network byte order for backward compatibility
266 * unless SMBIOS version is 2.6+ or little-endian is forced.
267 */
268 #if defined(SMBIOS_LITTLE_ENDIAN_UUID)
269 byteorder = LITTLE_ENDIAN;
270 #elif defined(SMBIOS_NETWORK_ENDIAN_UUID)
271 byteorder = BIG_ENDIAN;
272 #else
273 byteorder = ver < 0x0206 ? BIG_ENDIAN : LITTLE_ENDIAN;
274 #endif
275 if (byteorder != LITTLE_ENDIAN) {
276 f1 = ntohl(SMBIOS_GET32(addr, 0));
277 f2 = ntohs(SMBIOS_GET16(addr, 4));
278 f3 = ntohs(SMBIOS_GET16(addr, 6));
279 } else {
280 f1 = le32toh(SMBIOS_GET32(addr, 0));
281 f2 = le16toh(SMBIOS_GET16(addr, 4));
282 f3 = le16toh(SMBIOS_GET16(addr, 6));
283 }
284 sprintf(uuid,
285 "%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
286 f1, f2, f3, SMBIOS_GET8(addr, 8), SMBIOS_GET8(addr, 9),
287 SMBIOS_GET8(addr, 10), SMBIOS_GET8(addr, 11),
288 SMBIOS_GET8(addr, 12), SMBIOS_GET8(addr, 13),
289 SMBIOS_GET8(addr, 14), SMBIOS_GET8(addr, 15));
290 setenv(name, uuid, 1);
291 }
292 }
293
294 #undef UUID_SIZE
295 #undef UUID_TYPE
296 #undef UUID_STEP
297 #undef UUID_ALL_BITS
298 #undef UUID_GET
299
300 #endif
301
302 static const char *
smbios_parse_chassis_type(caddr_t addr)303 smbios_parse_chassis_type(caddr_t addr)
304 {
305 int type;
306
307 type = SMBIOS_GET8(addr, 0x5);
308 switch (type) {
309 case 0x1:
310 return ("Other");
311 case 0x2:
312 return ("Unknown");
313 case 0x3:
314 return ("Desktop");
315 case 0x4:
316 return ("Low Profile Desktop");
317 case 0x5:
318 return ("Pizza Box");
319 case 0x6:
320 return ("Mini Tower");
321 case 0x7:
322 return ("Tower");
323 case 0x8:
324 return ("Portable");
325 case 0x9:
326 return ("Laptop");
327 case 0xA:
328 return ("Notebook");
329 case 0xB:
330 return ("Hand Held");
331 case 0xC:
332 return ("Docking Station");
333 case 0xD:
334 return ("All in One");
335 case 0xE:
336 return ("Sub Notebook");
337 case 0xF:
338 return ("Lunch Box");
339 case 0x10:
340 return ("Space-saving");
341 case 0x11:
342 return ("Main Server Chassis");
343 case 0x12:
344 return ("Expansion Chassis");
345 case 0x13:
346 return ("SubChassis");
347 case 0x14:
348 return ("Bus Expansion Chassis");
349 case 0x15:
350 return ("Peripheral Chassis");
351 case 0x16:
352 return ("RAID Chassis");
353 case 0x17:
354 return ("Rack Mount Chassis");
355 case 0x18:
356 return ("Sealed-case PC");
357 case 0x19:
358 return ("Multi-system chassis");
359 case 0x1A:
360 return ("Compact PCI");
361 case 0x1B:
362 return ("Advanced TCA");
363 case 0x1C:
364 return ("Blade");
365 case 0x1D:
366 return ("Blade Enclosure");
367 case 0x1E:
368 return ("Tablet");
369 case 0x1F:
370 return ("Convertible");
371 case 0x20:
372 return ("Detachable");
373 case 0x21:
374 return ("IoT Gateway");
375 case 0x22:
376 return ("Embedded PC");
377 case 0x23:
378 return ("Mini PC");
379 case 0x24:
380 return ("Stick PC");
381 }
382
383 return ("Undefined");
384 }
385
386 static caddr_t
smbios_parse_table(const caddr_t addr)387 smbios_parse_table(const caddr_t addr)
388 {
389 caddr_t cp;
390 int proc, size, osize, type;
391 uint8_t bios_minor, bios_major;
392 char buf[16];
393
394 type = SMBIOS_GET8(addr, 0); /* 3.1.2 Structure Header Format */
395 switch(type) {
396 case 0: /* 3.3.1 BIOS Information (Type 0) */
397 smbios_setenv("smbios.bios.vendor", addr, 0x04);
398 smbios_setenv("smbios.bios.version", addr, 0x05);
399 smbios_setenv("smbios.bios.reldate", addr, 0x08);
400 bios_major = SMBIOS_GET8(addr, 0x14);
401 bios_minor = SMBIOS_GET8(addr, 0x15);
402 if (bios_minor != 0xFF && bios_major != 0xFF) {
403 snprintf(buf, sizeof(buf), "%u.%u",
404 bios_major, bios_minor);
405 setenv("smbios.bios.revision", buf, 1);
406 }
407 break;
408
409 case 1: /* 3.3.2 System Information (Type 1) */
410 smbios_setenv("smbios.system.maker", addr, 0x04);
411 smbios_setenv("smbios.system.product", addr, 0x05);
412 smbios_setenv("smbios.system.version", addr, 0x06);
413 #ifdef SMBIOS_SERIAL_NUMBERS
414 smbios_setenv("smbios.system.serial", addr, 0x07);
415 smbios_setuuid("smbios.system.uuid", addr + 0x08, smbios.ver);
416 #endif
417 if (smbios.major > 2 ||
418 (smbios.major == 2 && smbios.minor >= 4)) {
419 smbios_setenv("smbios.system.sku", addr, 0x19);
420 smbios_setenv("smbios.system.family", addr, 0x1a);
421 }
422 break;
423
424 case 2: /* 3.3.3 Base Board (or Module) Information (Type 2) */
425 smbios_setenv("smbios.planar.maker", addr, 0x04);
426 smbios_setenv("smbios.planar.product", addr, 0x05);
427 smbios_setenv("smbios.planar.version", addr, 0x06);
428 #ifdef SMBIOS_SERIAL_NUMBERS
429 smbios_setenv("smbios.planar.serial", addr, 0x07);
430 smbios_setenv("smbios.planar.tag", addr, 0x08);
431 #endif
432 smbios_setenv("smbios.planar.location", addr, 0x0a);
433 break;
434
435 case 3: /* 3.3.4 System Enclosure or Chassis (Type 3) */
436 smbios_setenv("smbios.chassis.maker", addr, 0x04);
437 setenv("smbios.chassis.type", smbios_parse_chassis_type(addr), 1);
438 smbios_setenv("smbios.chassis.version", addr, 0x06);
439 #ifdef SMBIOS_SERIAL_NUMBERS
440 smbios_setenv("smbios.chassis.serial", addr, 0x07);
441 smbios_setenv("smbios.chassis.tag", addr, 0x08);
442 #endif
443 break;
444
445 case 4: /* 3.3.5 Processor Information (Type 4) */
446 /*
447 * Offset 18h: Processor Status
448 *
449 * Bit 7 Reserved, must be 0
450 * Bit 6 CPU Socket Populated
451 * 1 - CPU Socket Populated
452 * 0 - CPU Socket Unpopulated
453 * Bit 5:3 Reserved, must be zero
454 * Bit 2:0 CPU Status
455 * 0h - Unknown
456 * 1h - CPU Enabled
457 * 2h - CPU Disabled by User via BIOS Setup
458 * 3h - CPU Disabled by BIOS (POST Error)
459 * 4h - CPU is Idle, waiting to be enabled
460 * 5-6h - Reserved
461 * 7h - Other
462 */
463 proc = SMBIOS_GET8(addr, 0x18);
464 if ((proc & 0x07) == 1)
465 smbios.enabled_sockets++;
466 if ((proc & 0x40) != 0)
467 smbios.populated_sockets++;
468 break;
469
470 case 6: /* 3.3.7 Memory Module Information (Type 6, Obsolete) */
471 /*
472 * Offset 0Ah: Enabled Size
473 *
474 * Bit 7 Bank connection
475 * 1 - Double-bank connection
476 * 0 - Single-bank connection
477 * Bit 6:0 Size (n), where 2**n is the size in MB
478 * 7Dh - Not determinable (Installed Size only)
479 * 7Eh - Module is installed, but no memory
480 * has been enabled
481 * 7Fh - Not installed
482 */
483 osize = SMBIOS_GET8(addr, 0x0a) & 0x7f;
484 if (osize > 0 && osize < 22)
485 smbios.old_enabled_memory += 1 << (osize + 10);
486 break;
487
488 case 17: /* 3.3.18 Memory Device (Type 17) */
489 /*
490 * Offset 0Ch: Size
491 *
492 * Bit 15 Granularity
493 * 1 - Value is in kilobytes units
494 * 0 - Value is in megabytes units
495 * Bit 14:0 Size
496 */
497 size = SMBIOS_GET16(addr, 0x0c);
498 if (size != 0 && size != 0xffff)
499 smbios.enabled_memory += (size & 0x8000) != 0 ?
500 (size & 0x7fff) : (size << 10);
501 break;
502
503 default: /* skip other types */
504 break;
505 }
506
507 /* Find structure terminator. */
508 cp = SMBIOS_GETSTR(addr);
509 while (SMBIOS_GET16(cp, 0) != 0)
510 cp++;
511
512 return (cp + 2);
513 }
514
515 static caddr_t
smbios_find_struct(int type)516 smbios_find_struct(int type)
517 {
518 caddr_t dmi;
519 size_t i;
520 caddr_t ep;
521
522 if (smbios.addr == NULL)
523 return (NULL);
524
525 ep = smbios.addr + smbios.length;
526 for (dmi = smbios.addr, i = 0;
527 dmi < ep && i < smbios.count; i++) {
528 if (SMBIOS_GET8(dmi, 0) == type) {
529 return dmi;
530 }
531 /* Find structure terminator. */
532 dmi = SMBIOS_GETSTR(dmi);
533 while (SMBIOS_GET16(dmi, 0) != 0 && dmi < ep) {
534 dmi++;
535 }
536 dmi += 2; /* For checksum */
537 }
538
539 return (NULL);
540 }
541
542 static void
smbios_probe(const caddr_t addr)543 smbios_probe(const caddr_t addr)
544 {
545 caddr_t saddr, info;
546 uintptr_t paddr;
547 int maj_off;
548 int min_off;
549
550 if (smbios.probed)
551 return;
552 smbios.probed = 1;
553
554 /* Search signatures and validate checksums. */
555 saddr = smbios_sigsearch(addr ? addr : PTOV(SMBIOS_START),
556 SMBIOS_LENGTH);
557 if (saddr == NULL)
558 return;
559
560 #ifdef HAS_SMBV3
561 if (isv3) {
562 smbios.length = SMBIOS_GET32(saddr, 0x0c); /* Structure Table Length */
563 paddr = SMBIOS_GET64(saddr, 0x10); /* Structure Table Address */
564 smbios.count = -1; /* not present in V3 */
565 smbios.ver = 0; /* not present in V3 */
566 maj_off = 0x07;
567 min_off = 0x08;
568 } else
569 #endif
570 {
571 smbios.length = SMBIOS_GET16(saddr, 0x16); /* Structure Table Length */
572 paddr = SMBIOS_GET32(saddr, 0x18); /* Structure Table Address */
573 smbios.count = SMBIOS_GET16(saddr, 0x1c); /* No of SMBIOS Structures */
574 smbios.ver = SMBIOS_GET8(saddr, 0x1e); /* SMBIOS BCD Revision */
575 maj_off = 0x06;
576 min_off = 0x07;
577 }
578
579
580 if (smbios.ver != 0) {
581 smbios.major = smbios.ver >> 4;
582 smbios.minor = smbios.ver & 0x0f;
583 if (smbios.major > 9 || smbios.minor > 9)
584 smbios.ver = 0;
585 }
586 if (smbios.ver == 0) {
587 smbios.major = SMBIOS_GET8(saddr, maj_off);/* SMBIOS Major Version */
588 smbios.minor = SMBIOS_GET8(saddr, min_off);/* SMBIOS Minor Version */
589 }
590 smbios.ver = (smbios.major << 8) | smbios.minor;
591 smbios.addr = PTOV(paddr);
592
593 /* Get system information from SMBIOS */
594 info = smbios_find_struct(0x00);
595 if (info != NULL) {
596 smbios.bios_vendor = smbios_getstring(info, 0x04);
597 }
598 info = smbios_find_struct(0x01);
599 if (info != NULL) {
600 smbios.maker = smbios_getstring(info, 0x04);
601 smbios.product = smbios_getstring(info, 0x05);
602 }
603 }
604
605 void
smbios_detect(const caddr_t addr)606 smbios_detect(const caddr_t addr)
607 {
608 char buf[16];
609 caddr_t dmi;
610 size_t i;
611
612 smbios_probe(addr);
613 if (smbios.addr == NULL)
614 return;
615
616 for (dmi = smbios.addr, i = 0;
617 dmi < smbios.addr + smbios.length && i < smbios.count; i++)
618 dmi = smbios_parse_table(dmi);
619
620 sprintf(buf, "%d.%d", smbios.major, smbios.minor);
621 setenv("smbios.version", buf, 1);
622 if (smbios.enabled_memory > 0 || smbios.old_enabled_memory > 0) {
623 sprintf(buf, "%u", smbios.enabled_memory > 0 ?
624 smbios.enabled_memory : smbios.old_enabled_memory);
625 setenv("smbios.memory.enabled", buf, 1);
626 }
627 if (smbios.enabled_sockets > 0) {
628 sprintf(buf, "%u", smbios.enabled_sockets);
629 setenv("smbios.socket.enabled", buf, 1);
630 }
631 if (smbios.populated_sockets > 0) {
632 sprintf(buf, "%u", smbios.populated_sockets);
633 setenv("smbios.socket.populated", buf, 1);
634 }
635 }
636
637 static int
smbios_match_str(const char * s1,const char * s2)638 smbios_match_str(const char* s1, const char* s2)
639 {
640 return (s1 == NULL || (s2 != NULL && !strcmp(s1, s2)));
641 }
642
643 int
smbios_match(const char * bios_vendor,const char * maker,const char * product)644 smbios_match(const char* bios_vendor, const char* maker,
645 const char* product)
646 {
647 /* XXXRP currently, only called from non-EFI. */
648 smbios_probe(NULL);
649 return (smbios_match_str(bios_vendor, smbios.bios_vendor) &&
650 smbios_match_str(maker, smbios.maker) &&
651 smbios_match_str(product, smbios.product));
652 }
653