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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));
1.1.1.2 ! root 20: void *finaltable = malloc_high(structure_table_length);
! 21: if (!ep || !finaltable) {
! 22: dprintf(1, "No space for smbios tables!\n");
! 23: free(ep);
! 24: free(finaltable);
1.1 root 25: return;
26: }
1.1.1.2 ! root 27: memcpy(finaltable, structure_table_address, structure_table_length);
1.1 root 28:
29: memcpy(ep->anchor_string, "_SM_", 4);
30: ep->length = 0x1f;
31: ep->smbios_major_version = 2;
32: ep->smbios_minor_version = 4;
33: ep->max_structure_size = max_structure_size;
34: ep->entry_point_revision = 0;
35: memset(ep->formatted_area, 0, 5);
36: memcpy(ep->intermediate_anchor_string, "_DMI_", 5);
37:
38: ep->structure_table_length = structure_table_length;
1.1.1.2 ! root 39: ep->structure_table_address = (u32)finaltable;
1.1 root 40: ep->number_of_structures = number_of_structures;
41: ep->smbios_bcd_revision = 0x24;
42:
43: ep->checksum -= checksum(ep, 0x10);
44:
45: ep->intermediate_checksum -= checksum((void*)ep + 0x10, ep->length - 0x10);
46:
1.1.1.2 ! root 47: dprintf(1, "SMBIOS ptr=%p table=%p\n", ep, finaltable);
1.1 root 48: }
49:
50: #define load_str_field_with_default(type, field, def) \
51: do { \
52: size = qemu_cfg_smbios_load_field(type, \
53: offsetof(struct smbios_type_##type, \
54: field), end); \
55: if (size > 0) { \
56: end += size; \
57: } else { \
58: memcpy(end, def, sizeof(def)); \
59: end += sizeof(def); \
60: } \
61: p->field = ++str_index; \
62: } while (0)
63:
64: #define load_str_field_or_skip(type, field) \
65: do { \
66: size = qemu_cfg_smbios_load_field(type, \
67: offsetof(struct smbios_type_##type, \
68: field), end); \
69: if (size > 0) { \
70: end += size; \
71: p->field = ++str_index; \
72: } else { \
73: p->field = 0; \
74: } \
75: } while (0)
76:
77: /* Type 0 -- BIOS Information */
78: #define RELEASE_DATE_STR "01/01/2007"
79: static void *
80: smbios_init_type_0(void *start)
81: {
82: struct smbios_type_0 *p = (struct smbios_type_0 *)start;
83: char *end = (char *)start + sizeof(struct smbios_type_0);
84: size_t size;
85: int str_index = 0;
86:
87: p->header.type = 0;
88: p->header.length = sizeof(struct smbios_type_0);
89: p->header.handle = 0;
90:
91: load_str_field_with_default(0, vendor_str, CONFIG_APPNAME);
92: load_str_field_with_default(0, bios_version_str, CONFIG_APPNAME);
93:
94: p->bios_starting_address_segment = 0xe800;
95:
96: load_str_field_with_default(0, bios_release_date_str, RELEASE_DATE_STR);
97:
98: p->bios_rom_size = 0; /* FIXME */
99:
100: memset(p->bios_characteristics, 0, 8);
101: p->bios_characteristics[0] = 0x08; /* BIOS characteristics not supported */
102: p->bios_characteristics_extension_bytes[0] = 0;
103: /* Enable targeted content distribution. Needed for SVVP */
104: p->bios_characteristics_extension_bytes[1] = 4;
105:
106: if (!qemu_cfg_smbios_load_field(0, offsetof(struct smbios_type_0,
107: system_bios_major_release),
108: &p->system_bios_major_release))
109: p->system_bios_major_release = 1;
110:
111: if (!qemu_cfg_smbios_load_field(0, offsetof(struct smbios_type_0,
112: system_bios_minor_release),
113: &p->system_bios_minor_release))
114: p->system_bios_minor_release = 0;
115:
116: p->embedded_controller_major_release = 0xff;
117: p->embedded_controller_minor_release = 0xff;
118:
119: *end = 0;
120: end++;
121:
122: return end;
123: }
124:
125: /* Type 1 -- System Information */
126: static void *
127: smbios_init_type_1(void *start)
128: {
129: struct smbios_type_1 *p = (struct smbios_type_1 *)start;
130: char *end = (char *)start + sizeof(struct smbios_type_1);
131: size_t size;
132: int str_index = 0;
133:
134: p->header.type = 1;
135: p->header.length = sizeof(struct smbios_type_1);
136: p->header.handle = 0x100;
137:
138: load_str_field_with_default(1, manufacturer_str, CONFIG_APPNAME);
139: load_str_field_with_default(1, product_name_str, CONFIG_APPNAME);
140: load_str_field_or_skip(1, version_str);
141: load_str_field_or_skip(1, serial_number_str);
142:
143: size = qemu_cfg_smbios_load_field(1, offsetof(struct smbios_type_1,
144: uuid), &p->uuid);
145: if (size == 0)
146: memset(p->uuid, 0, 16);
147:
148: p->wake_up_type = 0x06; /* power switch */
149:
150: load_str_field_or_skip(1, sku_number_str);
151: load_str_field_or_skip(1, family_str);
152:
153: *end = 0;
154: end++;
155: if (!str_index) {
156: *end = 0;
157: end++;
158: }
159:
160: return end;
161: }
162:
163: /* Type 3 -- System Enclosure */
164: static void *
165: smbios_init_type_3(void *start)
166: {
167: struct smbios_type_3 *p = (struct smbios_type_3 *)start;
168:
169: p->header.type = 3;
170: p->header.length = sizeof(struct smbios_type_3);
171: p->header.handle = 0x300;
172:
173: p->manufacturer_str = 1;
174: p->type = 0x01; /* other */
175: p->version_str = 0;
176: p->serial_number_str = 0;
177: p->asset_tag_number_str = 0;
178: p->boot_up_state = 0x03; /* safe */
179: p->power_supply_state = 0x03; /* safe */
180: p->thermal_state = 0x03; /* safe */
181: p->security_status = 0x02; /* unknown */
182: p->oem_defined = 0;
183: p->height = 0;
184: p->number_of_power_cords = 0;
185: p->contained_element_count = 0;
186:
187: start += sizeof(struct smbios_type_3);
188: memcpy((char *)start, CONFIG_APPNAME"\0\0", sizeof(CONFIG_APPNAME) + 1);
189:
190: return start + sizeof(CONFIG_APPNAME) + 1;
191: }
192:
193: /* Type 4 -- Processor Information */
194: static void *
195: smbios_init_type_4(void *start, unsigned int cpu_number)
196: {
197: struct smbios_type_4 *p = (struct smbios_type_4 *)start;
198:
199: p->header.type = 4;
200: p->header.length = sizeof(struct smbios_type_4);
201: p->header.handle = 0x400 + cpu_number;
202:
203: p->socket_designation_str = 1;
204: p->processor_type = 0x03; /* CPU */
205: p->processor_family = 0x01; /* other */
206: p->processor_manufacturer_str = 2;
207:
208: u32 cpuid_signature, ebx, ecx, cpuid_features;
209: cpuid(1, &cpuid_signature, &ebx, &ecx, &cpuid_features);
210: p->processor_id[0] = cpuid_signature;
211: p->processor_id[1] = cpuid_features;
212:
213: p->processor_version_str = 0;
214: p->voltage = 0;
215: p->external_clock = 0;
216:
217: p->max_speed = 2000;
218: p->current_speed = 2000;
219:
220: p->status = 0x41; /* socket populated, CPU enabled */
221: p->processor_upgrade = 0x01; /* other */
222:
223: p->l1_cache_handle = 0xffff; /* cache information structure not provided */
224: p->l2_cache_handle = 0xffff;
225: p->l3_cache_handle = 0xffff;
226:
227: start += sizeof(struct smbios_type_4);
228:
229: snprintf((char*)start, 6, "CPU%2x", cpu_number);
230: start += 6;
231: memcpy((char *)start, CONFIG_APPNAME"\0\0", sizeof(CONFIG_APPNAME) + 1);
232:
233: return start + sizeof(CONFIG_APPNAME) + 1;
234: }
235:
236: /* Type 16 -- Physical Memory Array */
237: static void *
238: smbios_init_type_16(void *start, u32 memory_size_mb, int nr_mem_devs)
239: {
240: struct smbios_type_16 *p = (struct smbios_type_16*)start;
241:
242: p->header.type = 16;
243: p->header.length = sizeof(struct smbios_type_16);
244: p->header.handle = 0x1000;
245:
246: p->location = 0x01; /* other */
247: p->use = 0x03; /* system memory */
248: p->error_correction = 0x06; /* Multi-bit ECC to make Microsoft happy */
249: p->maximum_capacity = memory_size_mb * 1024;
250: p->memory_error_information_handle = 0xfffe; /* none provided */
251: p->number_of_memory_devices = nr_mem_devs;
252:
253: start += sizeof(struct smbios_type_16);
254: *((u16 *)start) = 0;
255:
256: return start + 2;
257: }
258:
259: /* Type 17 -- Memory Device */
260: static void *
261: smbios_init_type_17(void *start, u32 memory_size_mb, int instance)
262: {
263: struct smbios_type_17 *p = (struct smbios_type_17 *)start;
264:
265: p->header.type = 17;
266: p->header.length = sizeof(struct smbios_type_17);
267: p->header.handle = 0x1100 + instance;
268:
269: p->physical_memory_array_handle = 0x1000;
270: p->total_width = 64;
271: p->data_width = 64;
272: /* TODO: should assert in case something is wrong ASSERT((memory_size_mb & ~0x7fff) == 0); */
273: p->size = memory_size_mb;
274: p->form_factor = 0x09; /* DIMM */
275: p->device_set = 0;
276: p->device_locator_str = 1;
277: p->bank_locator_str = 0;
278: p->memory_type = 0x07; /* RAM */
279: p->type_detail = 0;
280:
281: start += sizeof(struct smbios_type_17);
282: memcpy((char *)start, "DIMM 0", 7);
283: ((char*)start)[5] += instance;
284: start += 7;
285: *((u8 *)start) = 0;
286:
287: return start+1;
288: }
289:
290: /* Type 19 -- Memory Array Mapped Address */
291: static void *
292: smbios_init_type_19(void *start, u32 memory_size_mb, int instance)
293: {
294: struct smbios_type_19 *p = (struct smbios_type_19 *)start;
295:
296: p->header.type = 19;
297: p->header.length = sizeof(struct smbios_type_19);
298: p->header.handle = 0x1300 + instance;
299:
300: p->starting_address = instance << 24;
301: p->ending_address = p->starting_address + (memory_size_mb << 10) - 1;
302: p->memory_array_handle = 0x1000;
303: p->partition_width = 1;
304:
305: start += sizeof(struct smbios_type_19);
306: *((u16 *)start) = 0;
307:
308: return start + 2;
309: }
310:
311: /* Type 20 -- Memory Device Mapped Address */
312: static void *
313: smbios_init_type_20(void *start, u32 memory_size_mb, int instance)
314: {
315: struct smbios_type_20 *p = (struct smbios_type_20 *)start;
316:
317: p->header.type = 20;
318: p->header.length = sizeof(struct smbios_type_20);
319: p->header.handle = 0x1400 + instance;
320:
321: p->starting_address = instance << 24;
322: p->ending_address = p->starting_address + (memory_size_mb << 10) - 1;
323: p->memory_device_handle = 0x1100 + instance;
324: p->memory_array_mapped_address_handle = 0x1300 + instance;
325: p->partition_row_position = 1;
326: p->interleave_position = 0;
327: p->interleaved_data_depth = 0;
328:
329: start += sizeof(struct smbios_type_20);
330:
331: *((u16 *)start) = 0;
332: return start+2;
333: }
334:
335: /* Type 32 -- System Boot Information */
336: static void *
337: smbios_init_type_32(void *start)
338: {
339: struct smbios_type_32 *p = (struct smbios_type_32 *)start;
340:
341: p->header.type = 32;
342: p->header.length = sizeof(struct smbios_type_32);
343: p->header.handle = 0x2000;
344: memset(p->reserved, 0, 6);
345: p->boot_status = 0; /* no errors detected */
346:
347: start += sizeof(struct smbios_type_32);
348: *((u16 *)start) = 0;
349:
350: return start+2;
351: }
352:
353: /* Type 127 -- End of Table */
354: static void *
355: smbios_init_type_127(void *start)
356: {
357: struct smbios_type_127 *p = (struct smbios_type_127 *)start;
358:
359: p->header.type = 127;
360: p->header.length = sizeof(struct smbios_type_127);
361: p->header.handle = 0x7f00;
362:
363: start += sizeof(struct smbios_type_127);
364: *((u16 *)start) = 0;
365:
366: return start + 2;
367: }
368:
1.1.1.2 ! root 369: #define TEMPSMBIOSSIZE (32 * 1024)
! 370:
1.1 root 371: void
372: smbios_init(void)
373: {
374: if (! CONFIG_SMBIOS)
375: return;
376:
377: dprintf(3, "init SMBIOS tables\n");
378:
1.1.1.2 ! root 379: char *start = malloc_tmphigh(TEMPSMBIOSSIZE);
1.1 root 380: if (! start) {
1.1.1.2 ! root 381: dprintf(1, "No memory for temp smbios table\n");
1.1 root 382: return;
383: }
384:
385: u32 nr_structs = 0, max_struct_size = 0;
1.1.1.2 ! root 386: char *q, *p = start;
! 387: char *end = start + TEMPSMBIOSSIZE - sizeof(struct smbios_type_127);
1.1 root 388:
389: #define add_struct(type, args...) \
390: do { \
391: if (!qemu_cfg_smbios_load_external(type, &p, &nr_structs, \
392: &max_struct_size, end)) { \
393: q = smbios_init_type_##type(args); \
394: nr_structs++; \
395: if ((q - p) > max_struct_size) \
396: max_struct_size = q - p; \
397: p = q; \
398: } \
399: } while (0)
400:
401: add_struct(0, p);
402: add_struct(1, p);
403: add_struct(3, p);
404:
405: int cpu_num;
406: for (cpu_num = 1; cpu_num <= MaxCountCPUs; cpu_num++)
407: add_struct(4, p, cpu_num);
408: u64 memsize = RamSizeOver4G;
409: if (memsize)
410: memsize += 0x100000000ull;
411: else
412: memsize = RamSize;
413: memsize = memsize / (1024 * 1024);
414: int nr_mem_devs = (memsize + 0x3fff) >> 14;
415: add_struct(16, p, memsize, nr_mem_devs);
416: int i;
417: for (i = 0; i < nr_mem_devs; i++) {
418: u32 dev_memsize = ((i == (nr_mem_devs - 1))
419: ? (((memsize-1) & 0x3fff)+1) : 0x4000);
420: add_struct(17, p, dev_memsize, i);
421: add_struct(19, p, dev_memsize, i);
422: add_struct(20, p, dev_memsize, i);
423: }
424:
425: add_struct(32, p);
426: /* Add any remaining provided entries before the end marker */
427: for (i = 0; i < 256; i++)
428: qemu_cfg_smbios_load_external(i, &p, &nr_structs, &max_struct_size,
429: end);
430: add_struct(127, p);
431:
432: #undef add_struct
433:
434: smbios_entry_point_init(max_struct_size, p - start, start, nr_structs);
1.1.1.2 ! root 435: free(start);
1.1 root 436: }
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