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));
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);
26 finaltable = malloc_high(structure_table_length);
27 if (!ep || !finaltable) {
33 memcpy(finaltable, structure_table_address, structure_table_length);
35 memcpy(ep->anchor_string, "_SM_", 4);
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);
44 ep->structure_table_length = structure_table_length;
45 ep->structure_table_address = (u32)finaltable;
46 ep->number_of_structures = number_of_structures;
47 ep->smbios_bcd_revision = 0x24;
49 ep->checksum -= checksum(ep, 0x10);
51 ep->intermediate_checksum -= checksum((void*)ep + 0x10, ep->length - 0x10);
53 dprintf(1, "SMBIOS ptr=%p table=%p size=%d\n"
54 , ep, finaltable, structure_table_length);
57 #define load_str_field_with_default(type, field, def) \
59 size = qemu_cfg_smbios_load_field(type, \
60 offsetof(struct smbios_type_##type, \
65 memcpy(end, def, sizeof(def)); \
68 p->field = ++str_index; \
71 #define load_str_field_or_skip(type, field) \
73 size = qemu_cfg_smbios_load_field(type, \
74 offsetof(struct smbios_type_##type, \
78 p->field = ++str_index; \
84 #define set_field_with_default(type, field, def) \
86 if (!qemu_cfg_smbios_load_field(type, \
87 offsetof(struct smbios_type_##type, \
88 field), &p->field)) { \
93 /* Type 0 -- BIOS Information */
94 #define RELEASE_DATE_STR "01/01/2007"
96 smbios_init_type_0(void *start)
98 struct smbios_type_0 *p = (struct smbios_type_0 *)start;
99 char *end = (char *)start + sizeof(struct smbios_type_0);
104 p->header.length = sizeof(struct smbios_type_0);
105 p->header.handle = 0;
107 load_str_field_with_default(0, vendor_str, CONFIG_APPNAME);
108 load_str_field_with_default(0, bios_version_str, CONFIG_APPNAME);
110 p->bios_starting_address_segment = 0xe800;
112 load_str_field_with_default(0, bios_release_date_str, RELEASE_DATE_STR);
114 p->bios_rom_size = 0; /* FIXME */
116 if (!qemu_cfg_smbios_load_field(0, offsetof(struct smbios_type_0,
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;
124 if (!qemu_cfg_smbios_load_field(0, offsetof(struct smbios_type_0,
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;
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);
143 /* Type 1 -- System Information */
145 smbios_init_type_1(void *start)
147 struct smbios_type_1 *p = (struct smbios_type_1 *)start;
148 char *end = (char *)start + sizeof(struct smbios_type_1);
153 p->header.length = sizeof(struct smbios_type_1);
154 p->header.handle = 0x100;
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);
161 if (!qemu_cfg_smbios_load_field(1, offsetof(struct smbios_type_1,
163 memset(p->uuid, 0, 16);
166 set_field_with_default(1, wake_up_type, 0x06); /* power switch */
168 load_str_field_or_skip(1, sku_number_str);
169 load_str_field_or_skip(1, family_str);
181 /* Type 3 -- System Enclosure */
183 smbios_init_type_3(void *start)
185 struct smbios_type_3 *p = (struct smbios_type_3 *)start;
186 char *end = (char *)start + sizeof(struct smbios_type_3);
191 p->header.length = sizeof(struct smbios_type_3);
192 p->header.handle = 0x300;
194 load_str_field_with_default(3, manufacturer_str, CONFIG_APPNAME);
195 set_field_with_default(3, type, 0x01); /* other */
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);
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 */
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);
221 /* Type 4 -- Processor Information */
223 smbios_init_type_4(void *start, unsigned int cpu_number)
225 struct smbios_type_4 *p = (struct smbios_type_4 *)start;
226 char *end = (char *)start + sizeof(struct smbios_type_4);
232 p->header.length = sizeof(struct smbios_type_4);
233 p->header.handle = 0x400 + cpu_number;
235 size = qemu_cfg_smbios_load_field(4, offsetof(struct smbios_type_4,
236 socket_designation_str),
239 snprintf(name + size - 1, sizeof(name) - size, "%2x", cpu_number);
241 snprintf(name, sizeof(name), "CPU%2x", cpu_number);
243 memcpy(end, name, strlen(name) + 1);
244 end += strlen(name) + 1;
245 p->socket_designation_str = ++str_index;
247 set_field_with_default(4, processor_type, 0x03); /* CPU */
248 set_field_with_default(4, processor_family, 0x01); /* other */
250 load_str_field_with_default(4, processor_manufacturer_str, CONFIG_APPNAME);
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;
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);
264 set_field_with_default(4, max_speed, 2000);
265 set_field_with_default(4, current_speed, 2000);
267 set_field_with_default(4, status, 0x41); /* socket populated, CPU enabled */
268 set_field_with_default(4, processor_upgrade, 0x01); /* other */
270 /* cache information structure not provided */
271 p->l1_cache_handle = 0xffff;
272 p->l2_cache_handle = 0xffff;
273 p->l3_cache_handle = 0xffff;
285 /* Type 16 -- Physical Memory Array */
287 smbios_init_type_16(void *start, u32 memory_size_mb, int nr_mem_devs)
289 struct smbios_type_16 *p = (struct smbios_type_16*)start;
292 p->header.length = sizeof(struct smbios_type_16);
293 p->header.handle = 0x1000;
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;
302 p->memory_error_information_handle = 0xfffe; /* none provided */
303 p->number_of_memory_devices = nr_mem_devs;
305 start += sizeof(struct smbios_type_16);
311 /* Type 17 -- Memory Device */
313 smbios_init_type_17(void *start, u32 size_mb, int instance)
315 struct smbios_type_17 *p = (struct smbios_type_17 *)start;
316 char *end = (char *)start + sizeof(struct smbios_type_17);
322 p->header.length = sizeof(struct smbios_type_17);
323 p->header.handle = 0x1100 + instance;
325 p->physical_memory_array_handle = 0x1000;
326 set_field_with_default(17, total_width, 64);
327 set_field_with_default(17, data_width, 64);
328 /* TODO: should assert in case something is wrong ASSERT((memory_size_mb & ~0x7fff) == 0); */
330 set_field_with_default(17, form_factor, 0x09); /* DIMM */
333 size = qemu_cfg_smbios_load_field(17, offsetof(struct smbios_type_17,
337 snprintf(name + size - 1, sizeof(name) - size, "%d", instance);
339 snprintf(name, sizeof(name), "DIMM %d", instance);
341 memcpy(end, name, strlen(name) + 1);
342 end += strlen(name) + 1;
343 p->device_locator_str = ++str_index;
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);
359 /* Type 19 -- Memory Array Mapped Address */
361 smbios_init_type_19(void *start, u32 start_mb, u32 size_mb, int instance)
363 struct smbios_type_19 *p = (struct smbios_type_19 *)start;
366 p->header.length = sizeof(struct smbios_type_19);
367 p->header.handle = 0x1300 + instance;
369 p->starting_address = start_mb << 10;
370 p->ending_address = p->starting_address + (size_mb << 10) - 1;
371 p->memory_array_handle = 0x1000;
372 p->partition_width = 1;
374 start += sizeof(struct smbios_type_19);
380 /* Type 20 -- Memory Device Mapped Address */
382 smbios_init_type_20(void *start, u32 start_mb, u32 size_mb, int instance,
383 int dev_handle, int array_handle)
385 struct smbios_type_20 *p = (struct smbios_type_20 *)start;
388 p->header.length = sizeof(struct smbios_type_20);
389 p->header.handle = 0x1400 + instance;
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;
395 p->partition_row_position = 1;
396 p->interleave_position = 0;
397 p->interleaved_data_depth = 0;
399 start += sizeof(struct smbios_type_20);
405 /* Type 32 -- System Boot Information */
407 smbios_init_type_32(void *start)
409 struct smbios_type_32 *p = (struct smbios_type_32 *)start;
412 p->header.length = sizeof(struct smbios_type_32);
413 p->header.handle = 0x2000;
414 memset(p->reserved, 0, 6);
415 set_field_with_default(32, boot_status, 0); /* no errors detected */
417 start += sizeof(struct smbios_type_32);
423 /* Type 127 -- End of Table */
425 smbios_init_type_127(void *start)
427 struct smbios_type_127 *p = (struct smbios_type_127 *)start;
429 p->header.type = 127;
430 p->header.length = sizeof(struct smbios_type_127);
431 p->header.handle = 0x7f00;
433 start += sizeof(struct smbios_type_127);
439 #define TEMPSMBIOSSIZE (32 * 1024)
447 dprintf(3, "init SMBIOS tables\n");
449 char *start = malloc_tmphigh(TEMPSMBIOSSIZE);
455 u32 nr_structs = 0, max_struct_size = 0;
457 char *end = start + TEMPSMBIOSSIZE - sizeof(struct smbios_type_127);
459 #define add_struct(type, args...) \
461 if (!qemu_cfg_smbios_load_external(type, &p, &nr_structs, \
462 &max_struct_size, end)) { \
463 q = smbios_init_type_##type(args); \
465 if ((q - p) > max_struct_size) \
466 max_struct_size = q - p; \
476 for (cpu_num = 1; cpu_num <= MaxCountCPUs; cpu_num++)
477 add_struct(4, p, cpu_num);
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);
484 for (i = 0; i < nr_mem_devs; i++) {
485 u32 dev_mb = ((i == (nr_mem_devs - 1))
486 ? (((ram_mb - 1) & 0x3fff) + 1)
488 add_struct(17, p, dev_mb, i);
491 add_struct(19, p, 0, RamSize >> 20, 0);
493 add_struct(19, p, 4096, RamSizeOver4G >> 20, 1);
495 add_struct(20, p, 0, RamSize >> 20, 0, 0, 0);
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)
503 dev_mb -= RamSize >> 20;
505 add_struct(20, p, start_mb, dev_mb, j, i, 1);
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,
519 smbios_entry_point_init(max_struct_size, p - start, start, nr_structs);