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1.1 root 1: // smbios table generation (on emulators)
2: //
3: // Copyright (C) 2008,2009 Kevin O'Connor <[email protected]>
4: // Copyright (C) 2006 Fabrice Bellard
5: //
6: // This file may be distributed under the terms of the GNU LGPLv3 license.
7:
8: #include "util.h" // dprintf
9: #include "biosvar.h" // GET_EBDA
10: #include "paravirt.h" // qemu_cfg_smbios_load_field
11: #include "smbios.h" // struct smbios_entry_point
12:
13: static void
14: smbios_entry_point_init(u16 max_structure_size,
15: u16 structure_table_length,
16: void *structure_table_address,
17: u16 number_of_structures)
18: {
19: struct smbios_entry_point *ep = malloc_fseg(sizeof(*ep));
1.1.1.4 ! root 20: void *finaltable;
! 21: if (structure_table_length <= BUILD_MAX_SMBIOS_FSEG)
! 22: // Table is small enough for f-seg - allocate there. This
! 23: // works around a bug in JunOS (at least for small SMBIOS tables).
! 24: finaltable = malloc_fseg(structure_table_length);
! 25: else
! 26: finaltable = malloc_high(structure_table_length);
1.1.1.2 root 27: if (!ep || !finaltable) {
1.1.1.3 root 28: warn_noalloc();
1.1.1.2 root 29: free(ep);
30: free(finaltable);
1.1 root 31: return;
32: }
1.1.1.2 root 33: memcpy(finaltable, structure_table_address, structure_table_length);
1.1 root 34:
35: memcpy(ep->anchor_string, "_SM_", 4);
36: ep->length = 0x1f;
37: ep->smbios_major_version = 2;
38: ep->smbios_minor_version = 4;
39: ep->max_structure_size = max_structure_size;
40: ep->entry_point_revision = 0;
41: memset(ep->formatted_area, 0, 5);
42: memcpy(ep->intermediate_anchor_string, "_DMI_", 5);
43:
44: ep->structure_table_length = structure_table_length;
1.1.1.2 root 45: ep->structure_table_address = (u32)finaltable;
1.1 root 46: ep->number_of_structures = number_of_structures;
47: ep->smbios_bcd_revision = 0x24;
48:
49: ep->checksum -= checksum(ep, 0x10);
50:
51: ep->intermediate_checksum -= checksum((void*)ep + 0x10, ep->length - 0x10);
52:
1.1.1.4 ! root 53: dprintf(1, "SMBIOS ptr=%p table=%p size=%d\n"
! 54: , ep, finaltable, structure_table_length);
1.1 root 55: }
56:
57: #define load_str_field_with_default(type, field, def) \
58: do { \
59: size = qemu_cfg_smbios_load_field(type, \
60: offsetof(struct smbios_type_##type, \
61: field), end); \
62: if (size > 0) { \
63: end += size; \
64: } else { \
65: memcpy(end, def, sizeof(def)); \
66: end += sizeof(def); \
67: } \
68: p->field = ++str_index; \
69: } while (0)
70:
1.1.1.3 root 71: #define load_str_field_or_skip(type, field) \
1.1 root 72: do { \
73: size = qemu_cfg_smbios_load_field(type, \
74: offsetof(struct smbios_type_##type, \
75: field), end); \
76: if (size > 0) { \
77: end += size; \
78: p->field = ++str_index; \
79: } else { \
80: p->field = 0; \
81: } \
82: } while (0)
83:
1.1.1.3 root 84: #define set_field_with_default(type, field, def) \
85: do { \
86: if (!qemu_cfg_smbios_load_field(type, \
87: offsetof(struct smbios_type_##type, \
88: field), &p->field)) { \
89: p->field = def; \
90: } \
91: } while (0)
92:
1.1 root 93: /* Type 0 -- BIOS Information */
94: #define RELEASE_DATE_STR "01/01/2007"
95: static void *
96: smbios_init_type_0(void *start)
97: {
98: struct smbios_type_0 *p = (struct smbios_type_0 *)start;
99: char *end = (char *)start + sizeof(struct smbios_type_0);
100: size_t size;
101: int str_index = 0;
102:
103: p->header.type = 0;
104: p->header.length = sizeof(struct smbios_type_0);
105: p->header.handle = 0;
106:
107: load_str_field_with_default(0, vendor_str, CONFIG_APPNAME);
108: load_str_field_with_default(0, bios_version_str, CONFIG_APPNAME);
109:
110: p->bios_starting_address_segment = 0xe800;
111:
112: load_str_field_with_default(0, bios_release_date_str, RELEASE_DATE_STR);
113:
114: p->bios_rom_size = 0; /* FIXME */
115:
116: if (!qemu_cfg_smbios_load_field(0, offsetof(struct smbios_type_0,
1.1.1.3 root 117: bios_characteristics),
118: &p->bios_characteristics)) {
119: memset(p->bios_characteristics, 0, 8);
120: /* BIOS characteristics not supported */
121: p->bios_characteristics[0] = 0x08;
122: }
1.1 root 123:
124: if (!qemu_cfg_smbios_load_field(0, offsetof(struct smbios_type_0,
1.1.1.3 root 125: bios_characteristics_extension_bytes),
126: &p->bios_characteristics_extension_bytes)) {
127: p->bios_characteristics_extension_bytes[0] = 0;
128: /* Enable targeted content distribution. Needed for SVVP */
129: p->bios_characteristics_extension_bytes[1] = 4;
130: }
1.1 root 131:
1.1.1.3 root 132: set_field_with_default(0, system_bios_major_release, 1);
133: set_field_with_default(0, system_bios_minor_release, 0);
134: set_field_with_default(0, embedded_controller_major_release, 0xff);
135: set_field_with_default(0, embedded_controller_minor_release, 0xff);
1.1 root 136:
137: *end = 0;
138: end++;
139:
140: return end;
141: }
142:
143: /* Type 1 -- System Information */
144: static void *
145: smbios_init_type_1(void *start)
146: {
147: struct smbios_type_1 *p = (struct smbios_type_1 *)start;
148: char *end = (char *)start + sizeof(struct smbios_type_1);
149: size_t size;
150: int str_index = 0;
151:
152: p->header.type = 1;
153: p->header.length = sizeof(struct smbios_type_1);
154: p->header.handle = 0x100;
155:
156: load_str_field_with_default(1, manufacturer_str, CONFIG_APPNAME);
157: load_str_field_with_default(1, product_name_str, CONFIG_APPNAME);
158: load_str_field_or_skip(1, version_str);
159: load_str_field_or_skip(1, serial_number_str);
160:
1.1.1.3 root 161: if (!qemu_cfg_smbios_load_field(1, offsetof(struct smbios_type_1,
162: uuid), &p->uuid)) {
1.1 root 163: memset(p->uuid, 0, 16);
1.1.1.3 root 164: }
1.1 root 165:
1.1.1.3 root 166: set_field_with_default(1, wake_up_type, 0x06); /* power switch */
1.1 root 167:
168: load_str_field_or_skip(1, sku_number_str);
169: load_str_field_or_skip(1, family_str);
170:
171: *end = 0;
172: end++;
173: if (!str_index) {
174: *end = 0;
175: end++;
176: }
177:
178: return end;
179: }
180:
181: /* Type 3 -- System Enclosure */
182: static void *
183: smbios_init_type_3(void *start)
184: {
185: struct smbios_type_3 *p = (struct smbios_type_3 *)start;
1.1.1.3 root 186: char *end = (char *)start + sizeof(struct smbios_type_3);
187: size_t size;
188: int str_index = 0;
1.1 root 189:
190: p->header.type = 3;
191: p->header.length = sizeof(struct smbios_type_3);
192: p->header.handle = 0x300;
193:
1.1.1.3 root 194: load_str_field_with_default(3, manufacturer_str, CONFIG_APPNAME);
195: set_field_with_default(3, type, 0x01); /* other */
196:
197: load_str_field_or_skip(3, version_str);
198: load_str_field_or_skip(3, serial_number_str);
199: load_str_field_or_skip(3, asset_tag_number_str);
200:
201: set_field_with_default(3, boot_up_state, 0x03); /* safe */
202: set_field_with_default(3, power_supply_state, 0x03); /* safe */
203: set_field_with_default(3, thermal_state, 0x03); /* safe */
204: set_field_with_default(3, security_status, 0x02); /* unknown */
205:
206: set_field_with_default(3, oem_defined, 0);
207: set_field_with_default(3, height, 0);
208: set_field_with_default(3, number_of_power_cords, 0);
209: set_field_with_default(3, contained_element_count, 0);
1.1 root 210:
1.1.1.3 root 211: *end = 0;
212: end++;
213: if (!str_index) {
214: *end = 0;
215: end++;
216: }
1.1 root 217:
1.1.1.3 root 218: return end;
1.1 root 219: }
220:
221: /* Type 4 -- Processor Information */
222: static void *
223: smbios_init_type_4(void *start, unsigned int cpu_number)
224: {
225: struct smbios_type_4 *p = (struct smbios_type_4 *)start;
1.1.1.3 root 226: char *end = (char *)start + sizeof(struct smbios_type_4);
227: size_t size;
228: int str_index = 0;
229: char name[1024];
1.1 root 230:
231: p->header.type = 4;
232: p->header.length = sizeof(struct smbios_type_4);
233: p->header.handle = 0x400 + cpu_number;
234:
1.1.1.3 root 235: size = qemu_cfg_smbios_load_field(4, offsetof(struct smbios_type_4,
236: socket_designation_str),
237: name);
238: if (size)
239: snprintf(name + size - 1, sizeof(name) - size, "%2x", cpu_number);
240: else
241: snprintf(name, sizeof(name), "CPU%2x", cpu_number);
1.1 root 242:
1.1.1.3 root 243: memcpy(end, name, strlen(name) + 1);
244: end += strlen(name) + 1;
245: p->socket_designation_str = ++str_index;
246:
247: set_field_with_default(4, processor_type, 0x03); /* CPU */
248: set_field_with_default(4, processor_family, 0x01); /* other */
249:
250: load_str_field_with_default(4, processor_manufacturer_str, CONFIG_APPNAME);
251:
252: if (!qemu_cfg_smbios_load_field(4, offsetof(struct smbios_type_4,
253: processor_id), p->processor_id)) {
254: u32 cpuid_signature, ebx, ecx, cpuid_features;
255: cpuid(1, &cpuid_signature, &ebx, &ecx, &cpuid_features);
256: p->processor_id[0] = cpuid_signature;
257: p->processor_id[1] = cpuid_features;
258: }
1.1 root 259:
1.1.1.3 root 260: load_str_field_or_skip(4, processor_version_str);
261: set_field_with_default(4, voltage, 0);
262: set_field_with_default(4, external_clock, 0);
263:
264: set_field_with_default(4, max_speed, 2000);
265: set_field_with_default(4, current_speed, 2000);
266:
267: set_field_with_default(4, status, 0x41); /* socket populated, CPU enabled */
268: set_field_with_default(4, processor_upgrade, 0x01); /* other */
269:
270: /* cache information structure not provided */
271: p->l1_cache_handle = 0xffff;
272: p->l2_cache_handle = 0xffff;
273: p->l3_cache_handle = 0xffff;
1.1 root 274:
1.1.1.3 root 275: *end = 0;
276: end++;
277: if (!str_index) {
278: *end = 0;
279: end++;
280: }
1.1 root 281:
1.1.1.3 root 282: return end;
1.1 root 283: }
284:
285: /* Type 16 -- Physical Memory Array */
286: static void *
287: smbios_init_type_16(void *start, u32 memory_size_mb, int nr_mem_devs)
288: {
289: struct smbios_type_16 *p = (struct smbios_type_16*)start;
290:
291: p->header.type = 16;
292: p->header.length = sizeof(struct smbios_type_16);
293: p->header.handle = 0x1000;
294:
1.1.1.3 root 295: set_field_with_default(16, location, 0x01); /* other */
296: set_field_with_default(16, use, 0x03); /* system memory */
297: /* Multi-bit ECC to make Microsoft happy */
298: set_field_with_default(16, error_correction, 0x06);
299: /* 0x80000000 = unknown, accept sizes < 2TB - TODO multiple arrays */
300: p->maximum_capacity = memory_size_mb < 2 << 20 ?
301: memory_size_mb << 10 : 0x80000000;
1.1 root 302: p->memory_error_information_handle = 0xfffe; /* none provided */
303: p->number_of_memory_devices = nr_mem_devs;
304:
305: start += sizeof(struct smbios_type_16);
306: *((u16 *)start) = 0;
307:
308: return start + 2;
309: }
310:
311: /* Type 17 -- Memory Device */
312: static void *
1.1.1.3 root 313: smbios_init_type_17(void *start, u32 size_mb, int instance)
1.1 root 314: {
315: struct smbios_type_17 *p = (struct smbios_type_17 *)start;
1.1.1.3 root 316: char *end = (char *)start + sizeof(struct smbios_type_17);
317: size_t size;
318: int str_index = 0;
319: char name[1024];
1.1 root 320:
321: p->header.type = 17;
322: p->header.length = sizeof(struct smbios_type_17);
323: p->header.handle = 0x1100 + instance;
324:
325: p->physical_memory_array_handle = 0x1000;
1.1.1.3 root 326: set_field_with_default(17, total_width, 64);
327: set_field_with_default(17, data_width, 64);
1.1 root 328: /* TODO: should assert in case something is wrong ASSERT((memory_size_mb & ~0x7fff) == 0); */
1.1.1.3 root 329: p->size = size_mb;
330: set_field_with_default(17, form_factor, 0x09); /* DIMM */
1.1 root 331: p->device_set = 0;
332:
1.1.1.3 root 333: size = qemu_cfg_smbios_load_field(17, offsetof(struct smbios_type_17,
334: device_locator_str),
335: name);
336: if (size)
337: snprintf(name + size - 1, sizeof(name) - size, "%d", instance);
338: else
339: snprintf(name, sizeof(name), "DIMM %d", instance);
340:
341: memcpy(end, name, strlen(name) + 1);
342: end += strlen(name) + 1;
343: p->device_locator_str = ++str_index;
344:
345: load_str_field_or_skip(17, bank_locator_str);
346: set_field_with_default(17, memory_type, 0x07); /* RAM */
347: set_field_with_default(17, type_detail, 0);
348:
349: *end = 0;
350: end++;
351: if (!str_index) {
352: *end = 0;
353: end++;
354: }
355:
356: return end;
1.1 root 357: }
358:
359: /* Type 19 -- Memory Array Mapped Address */
360: static void *
1.1.1.3 root 361: smbios_init_type_19(void *start, u32 start_mb, u32 size_mb, int instance)
1.1 root 362: {
363: struct smbios_type_19 *p = (struct smbios_type_19 *)start;
364:
365: p->header.type = 19;
366: p->header.length = sizeof(struct smbios_type_19);
367: p->header.handle = 0x1300 + instance;
368:
1.1.1.3 root 369: p->starting_address = start_mb << 10;
370: p->ending_address = p->starting_address + (size_mb << 10) - 1;
1.1 root 371: p->memory_array_handle = 0x1000;
372: p->partition_width = 1;
373:
374: start += sizeof(struct smbios_type_19);
375: *((u16 *)start) = 0;
376:
377: return start + 2;
378: }
379:
380: /* Type 20 -- Memory Device Mapped Address */
381: static void *
1.1.1.3 root 382: smbios_init_type_20(void *start, u32 start_mb, u32 size_mb, int instance,
383: int dev_handle, int array_handle)
1.1 root 384: {
385: struct smbios_type_20 *p = (struct smbios_type_20 *)start;
386:
387: p->header.type = 20;
388: p->header.length = sizeof(struct smbios_type_20);
389: p->header.handle = 0x1400 + instance;
390:
1.1.1.3 root 391: p->starting_address = start_mb << 10;
392: p->ending_address = p->starting_address + (size_mb << 10) - 1;
393: p->memory_device_handle = 0x1100 + dev_handle;
394: p->memory_array_mapped_address_handle = 0x1300 + array_handle;
1.1 root 395: p->partition_row_position = 1;
396: p->interleave_position = 0;
397: p->interleaved_data_depth = 0;
398:
399: start += sizeof(struct smbios_type_20);
400:
401: *((u16 *)start) = 0;
402: return start+2;
403: }
404:
405: /* Type 32 -- System Boot Information */
406: static void *
407: smbios_init_type_32(void *start)
408: {
409: struct smbios_type_32 *p = (struct smbios_type_32 *)start;
410:
411: p->header.type = 32;
412: p->header.length = sizeof(struct smbios_type_32);
413: p->header.handle = 0x2000;
414: memset(p->reserved, 0, 6);
1.1.1.3 root 415: set_field_with_default(32, boot_status, 0); /* no errors detected */
1.1 root 416:
417: start += sizeof(struct smbios_type_32);
418: *((u16 *)start) = 0;
419:
420: return start+2;
421: }
422:
423: /* Type 127 -- End of Table */
424: static void *
425: smbios_init_type_127(void *start)
426: {
427: struct smbios_type_127 *p = (struct smbios_type_127 *)start;
428:
429: p->header.type = 127;
430: p->header.length = sizeof(struct smbios_type_127);
431: p->header.handle = 0x7f00;
432:
433: start += sizeof(struct smbios_type_127);
434: *((u16 *)start) = 0;
435:
436: return start + 2;
437: }
438:
1.1.1.2 root 439: #define TEMPSMBIOSSIZE (32 * 1024)
440:
1.1 root 441: void
442: smbios_init(void)
443: {
444: if (! CONFIG_SMBIOS)
445: return;
446:
447: dprintf(3, "init SMBIOS tables\n");
448:
1.1.1.2 root 449: char *start = malloc_tmphigh(TEMPSMBIOSSIZE);
1.1 root 450: if (! start) {
1.1.1.3 root 451: warn_noalloc();
1.1 root 452: return;
453: }
454:
455: u32 nr_structs = 0, max_struct_size = 0;
1.1.1.2 root 456: char *q, *p = start;
457: char *end = start + TEMPSMBIOSSIZE - sizeof(struct smbios_type_127);
1.1 root 458:
459: #define add_struct(type, args...) \
460: do { \
461: if (!qemu_cfg_smbios_load_external(type, &p, &nr_structs, \
462: &max_struct_size, end)) { \
463: q = smbios_init_type_##type(args); \
464: nr_structs++; \
465: if ((q - p) > max_struct_size) \
466: max_struct_size = q - p; \
467: p = q; \
468: } \
469: } while (0)
470:
471: add_struct(0, p);
472: add_struct(1, p);
473: add_struct(3, p);
474:
475: int cpu_num;
476: for (cpu_num = 1; cpu_num <= MaxCountCPUs; cpu_num++)
477: add_struct(4, p, cpu_num);
1.1.1.3 root 478:
479: int ram_mb = (RamSize + RamSizeOver4G) >> 20;
480: int nr_mem_devs = (ram_mb + 0x3fff) >> 14;
481: add_struct(16, p, ram_mb, nr_mem_devs);
482:
483: int i, j;
1.1 root 484: for (i = 0; i < nr_mem_devs; i++) {
1.1.1.3 root 485: u32 dev_mb = ((i == (nr_mem_devs - 1))
486: ? (((ram_mb - 1) & 0x3fff) + 1)
487: : 16384);
488: add_struct(17, p, dev_mb, i);
489: }
490:
491: add_struct(19, p, 0, RamSize >> 20, 0);
492: if (RamSizeOver4G)
493: add_struct(19, p, 4096, RamSizeOver4G >> 20, 1);
494:
495: add_struct(20, p, 0, RamSize >> 20, 0, 0, 0);
496: if (RamSizeOver4G) {
497: u32 start_mb = 4096;
498: for (j = 1, i = 0; i < nr_mem_devs; i++, j++) {
499: u32 dev_mb = ((i == (nr_mem_devs - 1))
500: ? (((ram_mb - 1) & 0x3fff) + 1)
501: : 16384);
502: if (i == 0)
503: dev_mb -= RamSize >> 20;
504:
505: add_struct(20, p, start_mb, dev_mb, j, i, 1);
506: start_mb += dev_mb;
507: }
1.1 root 508: }
509:
510: add_struct(32, p);
511: /* Add any remaining provided entries before the end marker */
512: for (i = 0; i < 256; i++)
513: qemu_cfg_smbios_load_external(i, &p, &nr_structs, &max_struct_size,
514: end);
515: add_struct(127, p);
516:
517: #undef add_struct
518:
519: smbios_entry_point_init(max_struct_size, p - start, start, nr_structs);
1.1.1.2 root 520: free(start);
1.1 root 521: }
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