1 // smbios table generation (on emulators)
3 // Copyright (C) 2008,2009 Kevin O'Connor <kevin@koconnor.net>
4 // Copyright (C) 2006 Fabrice Bellard
6 // This file may be distributed under the terms of the GNU LGPLv3 license.
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
14 smbios_entry_point_init(u16 max_structure_size,
15 u16 structure_table_length,
16 void *structure_table_address,
17 u16 number_of_structures)
19 struct smbios_entry_point *ep = malloc_fseg(sizeof(*ep));
20 void *finaltable = malloc_high(structure_table_length);
21 if (!ep || !finaltable) {
27 memcpy(finaltable, structure_table_address, structure_table_length);
29 memcpy(ep->anchor_string, "_SM_", 4);
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);
38 ep->structure_table_length = structure_table_length;
39 ep->structure_table_address = (u32)finaltable;
40 ep->number_of_structures = number_of_structures;
41 ep->smbios_bcd_revision = 0x24;
43 ep->checksum -= checksum(ep, 0x10);
45 ep->intermediate_checksum -= checksum((void*)ep + 0x10, ep->length - 0x10);
47 dprintf(1, "SMBIOS ptr=%p table=%p\n", ep, finaltable);
50 #define load_str_field_with_default(type, field, def) \
52 size = qemu_cfg_smbios_load_field(type, \
53 offsetof(struct smbios_type_##type, \
58 memcpy(end, def, sizeof(def)); \
61 p->field = ++str_index; \
64 #define load_str_field_or_skip(type, field) \
66 size = qemu_cfg_smbios_load_field(type, \
67 offsetof(struct smbios_type_##type, \
71 p->field = ++str_index; \
77 #define set_field_with_default(type, field, def) \
79 if (!qemu_cfg_smbios_load_field(type, \
80 offsetof(struct smbios_type_##type, \
81 field), &p->field)) { \
86 /* Type 0 -- BIOS Information */
87 #define RELEASE_DATE_STR "01/01/2007"
89 smbios_init_type_0(void *start)
91 struct smbios_type_0 *p = (struct smbios_type_0 *)start;
92 char *end = (char *)start + sizeof(struct smbios_type_0);
97 p->header.length = sizeof(struct smbios_type_0);
100 load_str_field_with_default(0, vendor_str, CONFIG_APPNAME);
101 load_str_field_with_default(0, bios_version_str, CONFIG_APPNAME);
103 p->bios_starting_address_segment = 0xe800;
105 load_str_field_with_default(0, bios_release_date_str, RELEASE_DATE_STR);
107 p->bios_rom_size = 0; /* FIXME */
109 if (!qemu_cfg_smbios_load_field(0, offsetof(struct smbios_type_0,
110 bios_characteristics),
111 &p->bios_characteristics)) {
112 memset(p->bios_characteristics, 0, 8);
113 /* BIOS characteristics not supported */
114 p->bios_characteristics[0] = 0x08;
117 if (!qemu_cfg_smbios_load_field(0, offsetof(struct smbios_type_0,
118 bios_characteristics_extension_bytes),
119 &p->bios_characteristics_extension_bytes)) {
120 p->bios_characteristics_extension_bytes[0] = 0;
121 /* Enable targeted content distribution. Needed for SVVP */
122 p->bios_characteristics_extension_bytes[1] = 4;
125 set_field_with_default(0, system_bios_major_release, 1);
126 set_field_with_default(0, system_bios_minor_release, 0);
127 set_field_with_default(0, embedded_controller_major_release, 0xff);
128 set_field_with_default(0, embedded_controller_minor_release, 0xff);
136 /* Type 1 -- System Information */
138 smbios_init_type_1(void *start)
140 struct smbios_type_1 *p = (struct smbios_type_1 *)start;
141 char *end = (char *)start + sizeof(struct smbios_type_1);
146 p->header.length = sizeof(struct smbios_type_1);
147 p->header.handle = 0x100;
149 load_str_field_with_default(1, manufacturer_str, CONFIG_APPNAME);
150 load_str_field_with_default(1, product_name_str, CONFIG_APPNAME);
151 load_str_field_or_skip(1, version_str);
152 load_str_field_or_skip(1, serial_number_str);
154 if (!qemu_cfg_smbios_load_field(1, offsetof(struct smbios_type_1,
156 memset(p->uuid, 0, 16);
159 set_field_with_default(1, wake_up_type, 0x06); /* power switch */
161 load_str_field_or_skip(1, sku_number_str);
162 load_str_field_or_skip(1, family_str);
174 /* Type 3 -- System Enclosure */
176 smbios_init_type_3(void *start)
178 struct smbios_type_3 *p = (struct smbios_type_3 *)start;
179 char *end = (char *)start + sizeof(struct smbios_type_3);
184 p->header.length = sizeof(struct smbios_type_3);
185 p->header.handle = 0x300;
187 load_str_field_with_default(3, manufacturer_str, CONFIG_APPNAME);
188 set_field_with_default(3, type, 0x01); /* other */
190 load_str_field_or_skip(3, version_str);
191 load_str_field_or_skip(3, serial_number_str);
192 load_str_field_or_skip(3, asset_tag_number_str);
194 set_field_with_default(3, boot_up_state, 0x03); /* safe */
195 set_field_with_default(3, power_supply_state, 0x03); /* safe */
196 set_field_with_default(3, thermal_state, 0x03); /* safe */
197 set_field_with_default(3, security_status, 0x02); /* unknown */
199 set_field_with_default(3, oem_defined, 0);
200 set_field_with_default(3, height, 0);
201 set_field_with_default(3, number_of_power_cords, 0);
202 set_field_with_default(3, contained_element_count, 0);
214 /* Type 4 -- Processor Information */
216 smbios_init_type_4(void *start, unsigned int cpu_number)
218 struct smbios_type_4 *p = (struct smbios_type_4 *)start;
219 char *end = (char *)start + sizeof(struct smbios_type_4);
225 p->header.length = sizeof(struct smbios_type_4);
226 p->header.handle = 0x400 + cpu_number;
228 size = qemu_cfg_smbios_load_field(4, offsetof(struct smbios_type_4,
229 socket_designation_str),
232 snprintf(name + size - 1, sizeof(name) - size, "%2x", cpu_number);
234 snprintf(name, sizeof(name), "CPU%2x", cpu_number);
236 memcpy(end, name, strlen(name) + 1);
237 end += strlen(name) + 1;
238 p->socket_designation_str = ++str_index;
240 set_field_with_default(4, processor_type, 0x03); /* CPU */
241 set_field_with_default(4, processor_family, 0x01); /* other */
243 load_str_field_with_default(4, processor_manufacturer_str, CONFIG_APPNAME);
245 if (!qemu_cfg_smbios_load_field(4, offsetof(struct smbios_type_4,
246 processor_id), p->processor_id)) {
247 u32 cpuid_signature, ebx, ecx, cpuid_features;
248 cpuid(1, &cpuid_signature, &ebx, &ecx, &cpuid_features);
249 p->processor_id[0] = cpuid_signature;
250 p->processor_id[1] = cpuid_features;
253 load_str_field_or_skip(4, processor_version_str);
254 set_field_with_default(4, voltage, 0);
255 set_field_with_default(4, external_clock, 0);
257 set_field_with_default(4, max_speed, 2000);
258 set_field_with_default(4, current_speed, 2000);
260 set_field_with_default(4, status, 0x41); /* socket populated, CPU enabled */
261 set_field_with_default(4, processor_upgrade, 0x01); /* other */
263 /* cache information structure not provided */
264 p->l1_cache_handle = 0xffff;
265 p->l2_cache_handle = 0xffff;
266 p->l3_cache_handle = 0xffff;
278 /* Type 16 -- Physical Memory Array */
280 smbios_init_type_16(void *start, u32 memory_size_mb, int nr_mem_devs)
282 struct smbios_type_16 *p = (struct smbios_type_16*)start;
285 p->header.length = sizeof(struct smbios_type_16);
286 p->header.handle = 0x1000;
288 set_field_with_default(16, location, 0x01); /* other */
289 set_field_with_default(16, use, 0x03); /* system memory */
290 /* Multi-bit ECC to make Microsoft happy */
291 set_field_with_default(16, error_correction, 0x06);
292 /* 0x80000000 = unknown, accept sizes < 2TB - TODO multiple arrays */
293 p->maximum_capacity = memory_size_mb < 2 << 20 ?
294 memory_size_mb << 10 : 0x80000000;
295 p->memory_error_information_handle = 0xfffe; /* none provided */
296 p->number_of_memory_devices = nr_mem_devs;
298 start += sizeof(struct smbios_type_16);
304 /* Type 17 -- Memory Device */
306 smbios_init_type_17(void *start, u32 size_mb, int instance)
308 struct smbios_type_17 *p = (struct smbios_type_17 *)start;
309 char *end = (char *)start + sizeof(struct smbios_type_17);
315 p->header.length = sizeof(struct smbios_type_17);
316 p->header.handle = 0x1100 + instance;
318 p->physical_memory_array_handle = 0x1000;
319 set_field_with_default(17, total_width, 64);
320 set_field_with_default(17, data_width, 64);
321 /* TODO: should assert in case something is wrong ASSERT((memory_size_mb & ~0x7fff) == 0); */
323 set_field_with_default(17, form_factor, 0x09); /* DIMM */
326 size = qemu_cfg_smbios_load_field(17, offsetof(struct smbios_type_17,
330 snprintf(name + size - 1, sizeof(name) - size, "%d", instance);
332 snprintf(name, sizeof(name), "DIMM %d", instance);
334 memcpy(end, name, strlen(name) + 1);
335 end += strlen(name) + 1;
336 p->device_locator_str = ++str_index;
338 load_str_field_or_skip(17, bank_locator_str);
339 set_field_with_default(17, memory_type, 0x07); /* RAM */
340 set_field_with_default(17, type_detail, 0);
352 /* Type 19 -- Memory Array Mapped Address */
354 smbios_init_type_19(void *start, u32 start_mb, u32 size_mb, int instance)
356 struct smbios_type_19 *p = (struct smbios_type_19 *)start;
359 p->header.length = sizeof(struct smbios_type_19);
360 p->header.handle = 0x1300 + instance;
362 p->starting_address = start_mb << 10;
363 p->ending_address = p->starting_address + (size_mb << 10) - 1;
364 p->memory_array_handle = 0x1000;
365 p->partition_width = 1;
367 start += sizeof(struct smbios_type_19);
373 /* Type 20 -- Memory Device Mapped Address */
375 smbios_init_type_20(void *start, u32 start_mb, u32 size_mb, int instance,
376 int dev_handle, int array_handle)
378 struct smbios_type_20 *p = (struct smbios_type_20 *)start;
381 p->header.length = sizeof(struct smbios_type_20);
382 p->header.handle = 0x1400 + instance;
384 p->starting_address = start_mb << 10;
385 p->ending_address = p->starting_address + (size_mb << 10) - 1;
386 p->memory_device_handle = 0x1100 + dev_handle;
387 p->memory_array_mapped_address_handle = 0x1300 + array_handle;
388 p->partition_row_position = 1;
389 p->interleave_position = 0;
390 p->interleaved_data_depth = 0;
392 start += sizeof(struct smbios_type_20);
398 /* Type 32 -- System Boot Information */
400 smbios_init_type_32(void *start)
402 struct smbios_type_32 *p = (struct smbios_type_32 *)start;
405 p->header.length = sizeof(struct smbios_type_32);
406 p->header.handle = 0x2000;
407 memset(p->reserved, 0, 6);
408 set_field_with_default(32, boot_status, 0); /* no errors detected */
410 start += sizeof(struct smbios_type_32);
416 /* Type 127 -- End of Table */
418 smbios_init_type_127(void *start)
420 struct smbios_type_127 *p = (struct smbios_type_127 *)start;
422 p->header.type = 127;
423 p->header.length = sizeof(struct smbios_type_127);
424 p->header.handle = 0x7f00;
426 start += sizeof(struct smbios_type_127);
432 #define TEMPSMBIOSSIZE (32 * 1024)
440 dprintf(3, "init SMBIOS tables\n");
442 char *start = malloc_tmphigh(TEMPSMBIOSSIZE);
448 u32 nr_structs = 0, max_struct_size = 0;
450 char *end = start + TEMPSMBIOSSIZE - sizeof(struct smbios_type_127);
452 #define add_struct(type, args...) \
454 if (!qemu_cfg_smbios_load_external(type, &p, &nr_structs, \
455 &max_struct_size, end)) { \
456 q = smbios_init_type_##type(args); \
458 if ((q - p) > max_struct_size) \
459 max_struct_size = q - p; \
469 for (cpu_num = 1; cpu_num <= MaxCountCPUs; cpu_num++)
470 add_struct(4, p, cpu_num);
472 int ram_mb = (RamSize + RamSizeOver4G) >> 20;
473 int nr_mem_devs = (ram_mb + 0x3fff) >> 14;
474 add_struct(16, p, ram_mb, nr_mem_devs);
477 for (i = 0; i < nr_mem_devs; i++) {
478 u32 dev_mb = ((i == (nr_mem_devs - 1))
479 ? (((ram_mb - 1) & 0x3fff) + 1)
481 add_struct(17, p, dev_mb, i);
484 add_struct(19, p, 0, RamSize >> 20, 0);
486 add_struct(19, p, 4096, RamSizeOver4G >> 20, 1);
488 add_struct(20, p, 0, RamSize >> 20, 0, 0, 0);
491 for (j = 1, i = 0; i < nr_mem_devs; i++, j++) {
492 u32 dev_mb = ((i == (nr_mem_devs - 1))
493 ? (((ram_mb - 1) & 0x3fff) + 1)
496 dev_mb -= RamSize >> 20;
498 add_struct(20, p, start_mb, dev_mb, j, i, 1);
504 /* Add any remaining provided entries before the end marker */
505 for (i = 0; i < 256; i++)
506 qemu_cfg_smbios_load_external(i, &p, &nr_structs, &max_struct_size,
512 smbios_entry_point_init(max_struct_size, p - start, start, nr_structs);