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 /* Type 0 -- BIOS Information */
78 #define RELEASE_DATE_STR "01/01/2007"
80 smbios_init_type_0(void *start)
82 struct smbios_type_0 *p = (struct smbios_type_0 *)start;
83 char *end = (char *)start + sizeof(struct smbios_type_0);
88 p->header.length = sizeof(struct smbios_type_0);
91 load_str_field_with_default(0, vendor_str, CONFIG_APPNAME);
92 load_str_field_with_default(0, bios_version_str, CONFIG_APPNAME);
94 p->bios_starting_address_segment = 0xe800;
96 load_str_field_with_default(0, bios_release_date_str, RELEASE_DATE_STR);
98 p->bios_rom_size = 0; /* FIXME */
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;
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;
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;
116 p->embedded_controller_major_release = 0xff;
117 p->embedded_controller_minor_release = 0xff;
125 /* Type 1 -- System Information */
127 smbios_init_type_1(void *start)
129 struct smbios_type_1 *p = (struct smbios_type_1 *)start;
130 char *end = (char *)start + sizeof(struct smbios_type_1);
135 p->header.length = sizeof(struct smbios_type_1);
136 p->header.handle = 0x100;
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);
143 size = qemu_cfg_smbios_load_field(1, offsetof(struct smbios_type_1,
146 memset(p->uuid, 0, 16);
148 p->wake_up_type = 0x06; /* power switch */
150 load_str_field_or_skip(1, sku_number_str);
151 load_str_field_or_skip(1, family_str);
163 /* Type 3 -- System Enclosure */
165 smbios_init_type_3(void *start)
167 struct smbios_type_3 *p = (struct smbios_type_3 *)start;
170 p->header.length = sizeof(struct smbios_type_3);
171 p->header.handle = 0x300;
173 p->manufacturer_str = 1;
174 p->type = 0x01; /* other */
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 */
184 p->number_of_power_cords = 0;
185 p->contained_element_count = 0;
187 start += sizeof(struct smbios_type_3);
188 memcpy((char *)start, CONFIG_APPNAME"\0\0", sizeof(CONFIG_APPNAME) + 1);
190 return start + sizeof(CONFIG_APPNAME) + 1;
193 /* Type 4 -- Processor Information */
195 smbios_init_type_4(void *start, unsigned int cpu_number)
197 struct smbios_type_4 *p = (struct smbios_type_4 *)start;
200 p->header.length = sizeof(struct smbios_type_4);
201 p->header.handle = 0x400 + cpu_number;
203 p->socket_designation_str = 1;
204 p->processor_type = 0x03; /* CPU */
205 p->processor_family = 0x01; /* other */
206 p->processor_manufacturer_str = 2;
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;
213 p->processor_version_str = 0;
215 p->external_clock = 0;
218 p->current_speed = 2000;
220 p->status = 0x41; /* socket populated, CPU enabled */
221 p->processor_upgrade = 0x01; /* other */
223 p->l1_cache_handle = 0xffff; /* cache information structure not provided */
224 p->l2_cache_handle = 0xffff;
225 p->l3_cache_handle = 0xffff;
227 start += sizeof(struct smbios_type_4);
229 snprintf((char*)start, 6, "CPU%2x", cpu_number);
231 memcpy((char *)start, CONFIG_APPNAME"\0\0", sizeof(CONFIG_APPNAME) + 1);
233 return start + sizeof(CONFIG_APPNAME) + 1;
236 /* Type 16 -- Physical Memory Array */
238 smbios_init_type_16(void *start, u32 memory_size_mb, int nr_mem_devs)
240 struct smbios_type_16 *p = (struct smbios_type_16*)start;
243 p->header.length = sizeof(struct smbios_type_16);
244 p->header.handle = 0x1000;
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;
253 start += sizeof(struct smbios_type_16);
259 /* Type 17 -- Memory Device */
261 smbios_init_type_17(void *start, u32 memory_size_mb, int instance)
263 struct smbios_type_17 *p = (struct smbios_type_17 *)start;
266 p->header.length = sizeof(struct smbios_type_17);
267 p->header.handle = 0x1100 + instance;
269 p->physical_memory_array_handle = 0x1000;
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 */
276 p->device_locator_str = 1;
277 p->bank_locator_str = 0;
278 p->memory_type = 0x07; /* RAM */
281 start += sizeof(struct smbios_type_17);
282 memcpy((char *)start, "DIMM 0", 7);
283 ((char*)start)[5] += instance;
290 /* Type 19 -- Memory Array Mapped Address */
292 smbios_init_type_19(void *start, u32 memory_size_mb, int instance)
294 struct smbios_type_19 *p = (struct smbios_type_19 *)start;
297 p->header.length = sizeof(struct smbios_type_19);
298 p->header.handle = 0x1300 + instance;
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;
305 start += sizeof(struct smbios_type_19);
311 /* Type 20 -- Memory Device Mapped Address */
313 smbios_init_type_20(void *start, u32 memory_size_mb, int instance)
315 struct smbios_type_20 *p = (struct smbios_type_20 *)start;
318 p->header.length = sizeof(struct smbios_type_20);
319 p->header.handle = 0x1400 + instance;
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;
329 start += sizeof(struct smbios_type_20);
335 /* Type 32 -- System Boot Information */
337 smbios_init_type_32(void *start)
339 struct smbios_type_32 *p = (struct smbios_type_32 *)start;
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 */
347 start += sizeof(struct smbios_type_32);
353 /* Type 127 -- End of Table */
355 smbios_init_type_127(void *start)
357 struct smbios_type_127 *p = (struct smbios_type_127 *)start;
359 p->header.type = 127;
360 p->header.length = sizeof(struct smbios_type_127);
361 p->header.handle = 0x7f00;
363 start += sizeof(struct smbios_type_127);
369 #define TEMPSMBIOSSIZE (32 * 1024)
377 dprintf(3, "init SMBIOS tables\n");
379 char *start = malloc_tmphigh(TEMPSMBIOSSIZE);
385 u32 nr_structs = 0, max_struct_size = 0;
387 char *end = start + TEMPSMBIOSSIZE - sizeof(struct smbios_type_127);
389 #define add_struct(type, args...) \
391 if (!qemu_cfg_smbios_load_external(type, &p, &nr_structs, \
392 &max_struct_size, end)) { \
393 q = smbios_init_type_##type(args); \
395 if ((q - p) > max_struct_size) \
396 max_struct_size = q - p; \
406 for (cpu_num = 1; cpu_num <= MaxCountCPUs; cpu_num++)
407 add_struct(4, p, cpu_num);
408 u64 memsize = RamSizeOver4G;
410 memsize += 0x100000000ull;
413 memsize = memsize / (1024 * 1024);
414 int nr_mem_devs = (memsize + 0x3fff) >> 14;
415 add_struct(16, p, memsize, nr_mem_devs);
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);
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,
434 smbios_entry_point_init(max_struct_size, p - start, start, nr_structs);