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
13 struct smbios_entry_point *SMBiosAddr;
16 smbios_entry_point_init(u16 max_structure_size,
17 u16 structure_table_length,
18 void *structure_table_address,
19 u16 number_of_structures)
21 struct smbios_entry_point *ep = malloc_fseg(sizeof(*ep));
23 if (structure_table_length <= BUILD_MAX_SMBIOS_FSEG)
24 // Table is small enough for f-seg - allocate there. This
25 // works around a bug in JunOS (at least for small SMBIOS tables).
26 finaltable = malloc_fseg(structure_table_length);
28 finaltable = malloc_high(structure_table_length);
29 if (!ep || !finaltable) {
35 memcpy(finaltable, structure_table_address, structure_table_length);
37 memcpy(ep->anchor_string, "_SM_", 4);
39 ep->smbios_major_version = 2;
40 ep->smbios_minor_version = 4;
41 ep->max_structure_size = max_structure_size;
42 ep->entry_point_revision = 0;
43 memset(ep->formatted_area, 0, 5);
44 memcpy(ep->intermediate_anchor_string, "_DMI_", 5);
46 ep->structure_table_length = structure_table_length;
47 ep->structure_table_address = (u32)finaltable;
48 ep->number_of_structures = number_of_structures;
49 ep->smbios_bcd_revision = 0x24;
51 ep->checksum -= checksum(ep, 0x10);
53 ep->intermediate_checksum -= checksum((void*)ep + 0x10, ep->length - 0x10);
56 dprintf(1, "SMBIOS ptr=%p table=%p size=%d\n"
57 , ep, finaltable, structure_table_length);
60 #define load_str_field_with_default(type, field, def) \
62 size = qemu_cfg_smbios_load_field(type, \
63 offsetof(struct smbios_type_##type, \
68 memcpy(end, def, sizeof(def)); \
71 p->field = ++str_index; \
74 #define load_str_field_or_skip(type, field) \
76 size = qemu_cfg_smbios_load_field(type, \
77 offsetof(struct smbios_type_##type, \
81 p->field = ++str_index; \
87 #define set_field_with_default(type, field, def) \
89 if (!qemu_cfg_smbios_load_field(type, \
90 offsetof(struct smbios_type_##type, \
91 field), &p->field)) { \
96 /* Type 0 -- BIOS Information */
97 #define RELEASE_DATE_STR "01/01/2007"
99 smbios_init_type_0(void *start)
101 struct smbios_type_0 *p = (struct smbios_type_0 *)start;
102 char *end = (char *)start + sizeof(struct smbios_type_0);
107 p->header.length = sizeof(struct smbios_type_0);
108 p->header.handle = 0;
110 load_str_field_with_default(0, vendor_str, CONFIG_APPNAME);
111 load_str_field_with_default(0, bios_version_str, CONFIG_APPNAME);
113 p->bios_starting_address_segment = 0xe800;
115 load_str_field_with_default(0, bios_release_date_str, RELEASE_DATE_STR);
117 p->bios_rom_size = 0; /* FIXME */
119 if (!qemu_cfg_smbios_load_field(0, offsetof(struct smbios_type_0,
120 bios_characteristics),
121 &p->bios_characteristics)) {
122 memset(p->bios_characteristics, 0, 8);
123 /* BIOS characteristics not supported */
124 p->bios_characteristics[0] = 0x08;
127 if (!qemu_cfg_smbios_load_field(0, offsetof(struct smbios_type_0,
128 bios_characteristics_extension_bytes),
129 &p->bios_characteristics_extension_bytes)) {
130 p->bios_characteristics_extension_bytes[0] = 0;
131 /* Enable targeted content distribution. Needed for SVVP */
132 p->bios_characteristics_extension_bytes[1] = 4;
135 set_field_with_default(0, system_bios_major_release, 1);
136 set_field_with_default(0, system_bios_minor_release, 0);
137 set_field_with_default(0, embedded_controller_major_release, 0xff);
138 set_field_with_default(0, embedded_controller_minor_release, 0xff);
146 /* Type 1 -- System Information */
148 smbios_init_type_1(void *start)
150 struct smbios_type_1 *p = (struct smbios_type_1 *)start;
151 char *end = (char *)start + sizeof(struct smbios_type_1);
156 p->header.length = sizeof(struct smbios_type_1);
157 p->header.handle = 0x100;
159 load_str_field_with_default(1, manufacturer_str, CONFIG_APPNAME);
160 load_str_field_with_default(1, product_name_str, CONFIG_APPNAME);
161 load_str_field_or_skip(1, version_str);
162 load_str_field_or_skip(1, serial_number_str);
164 if (!qemu_cfg_smbios_load_field(1, offsetof(struct smbios_type_1,
166 memset(p->uuid, 0, 16);
169 set_field_with_default(1, wake_up_type, 0x06); /* power switch */
171 load_str_field_or_skip(1, sku_number_str);
172 load_str_field_or_skip(1, family_str);
184 /* Type 3 -- System Enclosure */
186 smbios_init_type_3(void *start)
188 struct smbios_type_3 *p = (struct smbios_type_3 *)start;
189 char *end = (char *)start + sizeof(struct smbios_type_3);
194 p->header.length = sizeof(struct smbios_type_3);
195 p->header.handle = 0x300;
197 load_str_field_with_default(3, manufacturer_str, CONFIG_APPNAME);
198 set_field_with_default(3, type, 0x01); /* other */
200 load_str_field_or_skip(3, version_str);
201 load_str_field_or_skip(3, serial_number_str);
202 load_str_field_or_skip(3, asset_tag_number_str);
204 set_field_with_default(3, boot_up_state, 0x03); /* safe */
205 set_field_with_default(3, power_supply_state, 0x03); /* safe */
206 set_field_with_default(3, thermal_state, 0x03); /* safe */
207 set_field_with_default(3, security_status, 0x02); /* unknown */
209 set_field_with_default(3, oem_defined, 0);
210 set_field_with_default(3, height, 0);
211 set_field_with_default(3, number_of_power_cords, 0);
212 set_field_with_default(3, contained_element_count, 0);
224 /* Type 4 -- Processor Information */
226 smbios_init_type_4(void *start, unsigned int cpu_number)
228 struct smbios_type_4 *p = (struct smbios_type_4 *)start;
229 char *end = (char *)start + sizeof(struct smbios_type_4);
235 p->header.length = sizeof(struct smbios_type_4);
236 p->header.handle = 0x400 + cpu_number;
238 size = qemu_cfg_smbios_load_field(4, offsetof(struct smbios_type_4,
239 socket_designation_str),
242 snprintf(name + size - 1, sizeof(name) - size, "%2x", cpu_number);
244 snprintf(name, sizeof(name), "CPU%2x", cpu_number);
246 memcpy(end, name, strlen(name) + 1);
247 end += strlen(name) + 1;
248 p->socket_designation_str = ++str_index;
250 set_field_with_default(4, processor_type, 0x03); /* CPU */
251 set_field_with_default(4, processor_family, 0x01); /* other */
253 load_str_field_with_default(4, processor_manufacturer_str, CONFIG_APPNAME);
255 if (!qemu_cfg_smbios_load_field(4, offsetof(struct smbios_type_4,
256 processor_id), p->processor_id)) {
257 u32 cpuid_signature, ebx, ecx, cpuid_features;
258 cpuid(1, &cpuid_signature, &ebx, &ecx, &cpuid_features);
259 p->processor_id[0] = cpuid_signature;
260 p->processor_id[1] = cpuid_features;
263 load_str_field_or_skip(4, processor_version_str);
264 set_field_with_default(4, voltage, 0);
265 set_field_with_default(4, external_clock, 0);
267 set_field_with_default(4, max_speed, 2000);
268 set_field_with_default(4, current_speed, 2000);
270 set_field_with_default(4, status, 0x41); /* socket populated, CPU enabled */
271 set_field_with_default(4, processor_upgrade, 0x01); /* other */
273 /* cache information structure not provided */
274 p->l1_cache_handle = 0xffff;
275 p->l2_cache_handle = 0xffff;
276 p->l3_cache_handle = 0xffff;
288 /* Type 16 -- Physical Memory Array */
290 smbios_init_type_16(void *start, u32 memory_size_mb, int nr_mem_devs)
292 struct smbios_type_16 *p = (struct smbios_type_16*)start;
295 p->header.length = sizeof(struct smbios_type_16);
296 p->header.handle = 0x1000;
298 set_field_with_default(16, location, 0x01); /* other */
299 set_field_with_default(16, use, 0x03); /* system memory */
300 /* Multi-bit ECC to make Microsoft happy */
301 set_field_with_default(16, error_correction, 0x06);
302 /* 0x80000000 = unknown, accept sizes < 2TB - TODO multiple arrays */
303 p->maximum_capacity = memory_size_mb < 2 << 20 ?
304 memory_size_mb << 10 : 0x80000000;
305 p->memory_error_information_handle = 0xfffe; /* none provided */
306 p->number_of_memory_devices = nr_mem_devs;
308 start += sizeof(struct smbios_type_16);
314 /* Type 17 -- Memory Device */
316 smbios_init_type_17(void *start, u32 size_mb, int instance)
318 struct smbios_type_17 *p = (struct smbios_type_17 *)start;
319 char *end = (char *)start + sizeof(struct smbios_type_17);
325 p->header.length = sizeof(struct smbios_type_17);
326 p->header.handle = 0x1100 + instance;
328 p->physical_memory_array_handle = 0x1000;
329 set_field_with_default(17, total_width, 64);
330 set_field_with_default(17, data_width, 64);
331 /* TODO: should assert in case something is wrong ASSERT((memory_size_mb & ~0x7fff) == 0); */
333 set_field_with_default(17, form_factor, 0x09); /* DIMM */
336 size = qemu_cfg_smbios_load_field(17, offsetof(struct smbios_type_17,
340 snprintf(name + size - 1, sizeof(name) - size, "%d", instance);
342 snprintf(name, sizeof(name), "DIMM %d", instance);
344 memcpy(end, name, strlen(name) + 1);
345 end += strlen(name) + 1;
346 p->device_locator_str = ++str_index;
348 load_str_field_or_skip(17, bank_locator_str);
349 set_field_with_default(17, memory_type, 0x07); /* RAM */
350 set_field_with_default(17, type_detail, 0);
362 /* Type 19 -- Memory Array Mapped Address */
364 smbios_init_type_19(void *start, u32 start_mb, u32 size_mb, int instance)
366 struct smbios_type_19 *p = (struct smbios_type_19 *)start;
369 p->header.length = sizeof(struct smbios_type_19);
370 p->header.handle = 0x1300 + instance;
372 p->starting_address = start_mb << 10;
373 p->ending_address = p->starting_address + (size_mb << 10) - 1;
374 p->memory_array_handle = 0x1000;
375 p->partition_width = 1;
377 start += sizeof(struct smbios_type_19);
383 /* Type 20 -- Memory Device Mapped Address */
385 smbios_init_type_20(void *start, u32 start_mb, u32 size_mb, int instance,
386 int dev_handle, int array_handle)
388 struct smbios_type_20 *p = (struct smbios_type_20 *)start;
391 p->header.length = sizeof(struct smbios_type_20);
392 p->header.handle = 0x1400 + instance;
394 p->starting_address = start_mb << 10;
395 p->ending_address = p->starting_address + (size_mb << 10) - 1;
396 p->memory_device_handle = 0x1100 + dev_handle;
397 p->memory_array_mapped_address_handle = 0x1300 + array_handle;
398 p->partition_row_position = 1;
399 p->interleave_position = 0;
400 p->interleaved_data_depth = 0;
402 start += sizeof(struct smbios_type_20);
408 /* Type 32 -- System Boot Information */
410 smbios_init_type_32(void *start)
412 struct smbios_type_32 *p = (struct smbios_type_32 *)start;
415 p->header.length = sizeof(struct smbios_type_32);
416 p->header.handle = 0x2000;
417 memset(p->reserved, 0, 6);
418 set_field_with_default(32, boot_status, 0); /* no errors detected */
420 start += sizeof(struct smbios_type_32);
426 /* Type 127 -- End of Table */
428 smbios_init_type_127(void *start)
430 struct smbios_type_127 *p = (struct smbios_type_127 *)start;
432 p->header.type = 127;
433 p->header.length = sizeof(struct smbios_type_127);
434 p->header.handle = 0x7f00;
436 start += sizeof(struct smbios_type_127);
442 #define TEMPSMBIOSSIZE (32 * 1024)
450 dprintf(3, "init SMBIOS tables\n");
452 char *start = malloc_tmphigh(TEMPSMBIOSSIZE);
458 u32 nr_structs = 0, max_struct_size = 0;
460 char *end = start + TEMPSMBIOSSIZE - sizeof(struct smbios_type_127);
462 #define add_struct(type, args...) \
464 if (!qemu_cfg_smbios_load_external(type, &p, &nr_structs, \
465 &max_struct_size, end)) { \
466 q = smbios_init_type_##type(args); \
468 if ((q - p) > max_struct_size) \
469 max_struct_size = q - p; \
479 for (cpu_num = 1; cpu_num <= MaxCountCPUs; cpu_num++)
480 add_struct(4, p, cpu_num);
482 int ram_mb = (RamSize + RamSizeOver4G) >> 20;
483 int nr_mem_devs = (ram_mb + 0x3fff) >> 14;
484 add_struct(16, p, ram_mb, nr_mem_devs);
487 for (i = 0; i < nr_mem_devs; i++) {
488 u32 dev_mb = ((i == (nr_mem_devs - 1))
489 ? (((ram_mb - 1) & 0x3fff) + 1)
491 add_struct(17, p, dev_mb, i);
494 add_struct(19, p, 0, RamSize >> 20, 0);
496 add_struct(19, p, 4096, RamSizeOver4G >> 20, 1);
498 add_struct(20, p, 0, RamSize >> 20, 0, 0, 0);
501 for (j = 1, i = 0; i < nr_mem_devs; i++, j++) {
502 u32 dev_mb = ((i == (nr_mem_devs - 1))
503 ? (((ram_mb - 1) & 0x3fff) + 1)
506 dev_mb -= RamSize >> 20;
508 add_struct(20, p, start_mb, dev_mb, j, i, 1);
514 /* Add any remaining provided entries before the end marker */
515 for (i = 0; i < 256; i++)
516 qemu_cfg_smbios_load_external(i, &p, &nr_structs, &max_struct_size,
522 smbios_entry_point_init(max_struct_size, p - start, start, nr_structs);