| // smbios table generation (on emulators) |
| // |
| // Copyright (C) 2008,2009 Kevin O'Connor <kevin@koconnor.net> |
| // Copyright (C) 2006 Fabrice Bellard |
| // |
| // This file may be distributed under the terms of the GNU LGPLv3 license. |
| |
| #include "util.h" // dprintf |
| #include "biosvar.h" // GET_EBDA |
| |
| |
| /**************************************************************** |
| * UUID probe |
| ****************************************************************/ |
| |
| #define QEMU_CFG_SIGNATURE 0x00 |
| #define QEMU_CFG_ID 0x01 |
| #define QEMU_CFG_UUID 0x02 |
| |
| static void |
| qemu_cfg_read(u8 *buf, u16 f, int len) |
| { |
| outw(f, PORT_QEMU_CFG_CTL); |
| while (len--) |
| *(buf++) = inb(PORT_QEMU_CFG_DATA); |
| } |
| |
| static int |
| qemu_cfg_port_probe() |
| { |
| u8 sig[4] = "QEMU"; |
| u8 buf[4]; |
| qemu_cfg_read(buf, QEMU_CFG_SIGNATURE, 4); |
| return *(u32*)buf == *(u32*)sig; |
| } |
| |
| static void |
| uuid_probe(u8 *bios_uuid) |
| { |
| // Default to UUID not set |
| memset(bios_uuid, 0, 16); |
| |
| if (! CONFIG_UUID_BACKDOOR) |
| return; |
| if (CONFIG_COREBOOT) |
| return; |
| if (! qemu_cfg_port_probe()) |
| // Feature not available |
| return; |
| |
| qemu_cfg_read(bios_uuid, QEMU_CFG_UUID, 16); |
| } |
| |
| |
| /**************************************************************** |
| * smbios tables |
| ****************************************************************/ |
| |
| /* SMBIOS entry point -- must be written to a 16-bit aligned address |
| between 0xf0000 and 0xfffff. |
| */ |
| struct smbios_entry_point { |
| char anchor_string[4]; |
| u8 checksum; |
| u8 length; |
| u8 smbios_major_version; |
| u8 smbios_minor_version; |
| u16 max_structure_size; |
| u8 entry_point_revision; |
| u8 formatted_area[5]; |
| char intermediate_anchor_string[5]; |
| u8 intermediate_checksum; |
| u16 structure_table_length; |
| u32 structure_table_address; |
| u16 number_of_structures; |
| u8 smbios_bcd_revision; |
| } PACKED; |
| |
| /* This goes at the beginning of every SMBIOS structure. */ |
| struct smbios_structure_header { |
| u8 type; |
| u8 length; |
| u16 handle; |
| } PACKED; |
| |
| /* SMBIOS type 0 - BIOS Information */ |
| struct smbios_type_0 { |
| struct smbios_structure_header header; |
| u8 vendor_str; |
| u8 bios_version_str; |
| u16 bios_starting_address_segment; |
| u8 bios_release_date_str; |
| u8 bios_rom_size; |
| u8 bios_characteristics[8]; |
| u8 bios_characteristics_extension_bytes[2]; |
| u8 system_bios_major_release; |
| u8 system_bios_minor_release; |
| u8 embedded_controller_major_release; |
| u8 embedded_controller_minor_release; |
| } PACKED; |
| |
| /* SMBIOS type 1 - System Information */ |
| struct smbios_type_1 { |
| struct smbios_structure_header header; |
| u8 manufacturer_str; |
| u8 product_name_str; |
| u8 version_str; |
| u8 serial_number_str; |
| u8 uuid[16]; |
| u8 wake_up_type; |
| u8 sku_number_str; |
| u8 family_str; |
| } PACKED; |
| |
| /* SMBIOS type 3 - System Enclosure (v2.3) */ |
| struct smbios_type_3 { |
| struct smbios_structure_header header; |
| u8 manufacturer_str; |
| u8 type; |
| u8 version_str; |
| u8 serial_number_str; |
| u8 asset_tag_number_str; |
| u8 boot_up_state; |
| u8 power_supply_state; |
| u8 thermal_state; |
| u8 security_status; |
| u32 oem_defined; |
| u8 height; |
| u8 number_of_power_cords; |
| u8 contained_element_count; |
| // contained elements follow |
| } PACKED; |
| |
| /* SMBIOS type 4 - Processor Information (v2.0) */ |
| struct smbios_type_4 { |
| struct smbios_structure_header header; |
| u8 socket_designation_str; |
| u8 processor_type; |
| u8 processor_family; |
| u8 processor_manufacturer_str; |
| u32 processor_id[2]; |
| u8 processor_version_str; |
| u8 voltage; |
| u16 external_clock; |
| u16 max_speed; |
| u16 current_speed; |
| u8 status; |
| u8 processor_upgrade; |
| u16 l1_cache_handle; |
| u16 l2_cache_handle; |
| u16 l3_cache_handle; |
| } PACKED; |
| |
| /* SMBIOS type 16 - Physical Memory Array |
| * Associated with one type 17 (Memory Device). |
| */ |
| struct smbios_type_16 { |
| struct smbios_structure_header header; |
| u8 location; |
| u8 use; |
| u8 error_correction; |
| u32 maximum_capacity; |
| u16 memory_error_information_handle; |
| u16 number_of_memory_devices; |
| } PACKED; |
| |
| /* SMBIOS type 17 - Memory Device |
| * Associated with one type 19 |
| */ |
| struct smbios_type_17 { |
| struct smbios_structure_header header; |
| u16 physical_memory_array_handle; |
| u16 memory_error_information_handle; |
| u16 total_width; |
| u16 data_width; |
| u16 size; |
| u8 form_factor; |
| u8 device_set; |
| u8 device_locator_str; |
| u8 bank_locator_str; |
| u8 memory_type; |
| u16 type_detail; |
| } PACKED; |
| |
| /* SMBIOS type 19 - Memory Array Mapped Address */ |
| struct smbios_type_19 { |
| struct smbios_structure_header header; |
| u32 starting_address; |
| u32 ending_address; |
| u16 memory_array_handle; |
| u8 partition_width; |
| } PACKED; |
| |
| /* SMBIOS type 20 - Memory Device Mapped Address */ |
| struct smbios_type_20 { |
| struct smbios_structure_header header; |
| u32 starting_address; |
| u32 ending_address; |
| u16 memory_device_handle; |
| u16 memory_array_mapped_address_handle; |
| u8 partition_row_position; |
| u8 interleave_position; |
| u8 interleaved_data_depth; |
| } PACKED; |
| |
| /* SMBIOS type 32 - System Boot Information */ |
| struct smbios_type_32 { |
| struct smbios_structure_header header; |
| u8 reserved[6]; |
| u8 boot_status; |
| } PACKED; |
| |
| /* SMBIOS type 127 -- End-of-table */ |
| struct smbios_type_127 { |
| struct smbios_structure_header header; |
| } PACKED; |
| |
| |
| /**************************************************************** |
| * smbios init |
| ****************************************************************/ |
| |
| static void |
| smbios_entry_point_init(u16 max_structure_size, |
| u16 structure_table_length, |
| void *structure_table_address, |
| u16 number_of_structures) |
| { |
| struct smbios_entry_point *ep = malloc_fseg(sizeof(*ep)); |
| if (! ep) { |
| dprintf(1, "No space for smbios entry table!\n"); |
| return; |
| } |
| |
| memcpy(ep->anchor_string, "_SM_", 4); |
| ep->length = 0x1f; |
| ep->smbios_major_version = 2; |
| ep->smbios_minor_version = 4; |
| ep->max_structure_size = max_structure_size; |
| ep->entry_point_revision = 0; |
| memset(ep->formatted_area, 0, 5); |
| memcpy(ep->intermediate_anchor_string, "_DMI_", 5); |
| |
| ep->structure_table_length = structure_table_length; |
| ep->structure_table_address = (u32)structure_table_address; |
| ep->number_of_structures = number_of_structures; |
| ep->smbios_bcd_revision = 0x24; |
| |
| ep->checksum -= checksum(ep, 0x10); |
| |
| ep->intermediate_checksum -= checksum((void*)ep + 0x10, ep->length - 0x10); |
| |
| dprintf(1, "SMBIOS ptr=%p table=%p\n", ep, structure_table_address); |
| } |
| |
| /* Type 0 -- BIOS Information */ |
| #define RELEASE_DATE_STR "01/01/2007" |
| static void * |
| smbios_type_0_init(void *start) |
| { |
| struct smbios_type_0 *p = (struct smbios_type_0 *)start; |
| |
| p->header.type = 0; |
| p->header.length = sizeof(struct smbios_type_0); |
| p->header.handle = 0; |
| |
| p->vendor_str = 1; |
| p->bios_version_str = 1; |
| p->bios_starting_address_segment = 0xe800; |
| p->bios_release_date_str = 2; |
| p->bios_rom_size = 0; /* FIXME */ |
| |
| memset(p->bios_characteristics, 0, sizeof(p->bios_characteristics)); |
| p->bios_characteristics[0] = 0x08; /* BIOS characteristics not supported */ |
| p->bios_characteristics_extension_bytes[0] = 0; |
| p->bios_characteristics_extension_bytes[1] = 0; |
| |
| p->system_bios_major_release = 1; |
| p->system_bios_minor_release = 0; |
| p->embedded_controller_major_release = 0xff; |
| p->embedded_controller_minor_release = 0xff; |
| |
| start += sizeof(struct smbios_type_0); |
| memcpy((char *)start, CONFIG_APPNAME, sizeof(CONFIG_APPNAME)); |
| start += sizeof(CONFIG_APPNAME); |
| memcpy((char *)start, RELEASE_DATE_STR, sizeof(RELEASE_DATE_STR)); |
| start += sizeof(RELEASE_DATE_STR); |
| *((u8 *)start) = 0; |
| |
| return start+1; |
| } |
| |
| /* Type 1 -- System Information */ |
| static void * |
| smbios_type_1_init(void *start) |
| { |
| struct smbios_type_1 *p = (struct smbios_type_1 *)start; |
| p->header.type = 1; |
| p->header.length = sizeof(struct smbios_type_1); |
| p->header.handle = 0x100; |
| |
| p->manufacturer_str = 0; |
| p->product_name_str = 0; |
| p->version_str = 0; |
| p->serial_number_str = 0; |
| |
| uuid_probe(p->uuid); |
| |
| p->wake_up_type = 0x06; /* power switch */ |
| p->sku_number_str = 0; |
| p->family_str = 0; |
| |
| start += sizeof(struct smbios_type_1); |
| *((u16 *)start) = 0; |
| |
| return start+2; |
| } |
| |
| /* Type 3 -- System Enclosure */ |
| static void * |
| smbios_type_3_init(void *start) |
| { |
| struct smbios_type_3 *p = (struct smbios_type_3 *)start; |
| |
| p->header.type = 3; |
| p->header.length = sizeof(struct smbios_type_3); |
| p->header.handle = 0x300; |
| |
| p->manufacturer_str = 0; |
| p->type = 0x01; /* other */ |
| p->version_str = 0; |
| p->serial_number_str = 0; |
| p->asset_tag_number_str = 0; |
| p->boot_up_state = 0x03; /* safe */ |
| p->power_supply_state = 0x03; /* safe */ |
| p->thermal_state = 0x03; /* safe */ |
| p->security_status = 0x02; /* unknown */ |
| p->oem_defined = 0; |
| p->height = 0; |
| p->number_of_power_cords = 0; |
| p->contained_element_count = 0; |
| |
| start += sizeof(struct smbios_type_3); |
| *((u16 *)start) = 0; |
| |
| return start+2; |
| } |
| |
| /* Type 4 -- Processor Information */ |
| static void * |
| smbios_type_4_init(void *start, unsigned int cpu_number) |
| { |
| struct smbios_type_4 *p = (struct smbios_type_4 *)start; |
| |
| p->header.type = 4; |
| p->header.length = sizeof(struct smbios_type_4); |
| p->header.handle = 0x400 + cpu_number; |
| |
| p->socket_designation_str = 1; |
| p->processor_type = 0x03; /* CPU */ |
| p->processor_family = 0x01; /* other */ |
| p->processor_manufacturer_str = 0; |
| |
| u32 cpuid_signature, ebx, ecx, cpuid_features; |
| cpuid(1, &cpuid_signature, &ebx, &ecx, &cpuid_features); |
| p->processor_id[0] = cpuid_signature; |
| p->processor_id[1] = cpuid_features; |
| |
| p->processor_version_str = 0; |
| p->voltage = 0; |
| p->external_clock = 0; |
| |
| p->max_speed = 0; /* unknown */ |
| p->current_speed = 0; /* unknown */ |
| |
| p->status = 0x41; /* socket populated, CPU enabled */ |
| p->processor_upgrade = 0x01; /* other */ |
| |
| p->l1_cache_handle = 0xffff; /* cache information structure not provided */ |
| p->l2_cache_handle = 0xffff; |
| p->l3_cache_handle = 0xffff; |
| |
| start += sizeof(struct smbios_type_4); |
| |
| memcpy((char *)start, "CPU " "\0" "" "\0" "", 7); |
| ((char *)start)[4] = cpu_number + '0'; |
| |
| return start+7; |
| } |
| |
| /* Type 16 -- Physical Memory Array */ |
| static void * |
| smbios_type_16_init(void *start) |
| { |
| struct smbios_type_16 *p = (struct smbios_type_16*)start; |
| |
| p->header.type = 16; |
| p->header.length = sizeof(struct smbios_type_16); |
| p->header.handle = 0x1000; |
| |
| p->location = 0x01; /* other */ |
| p->use = 0x03; /* system memory */ |
| p->error_correction = 0x01; /* other */ |
| u64 memsize = RamSize + RamSizeOver4G; |
| p->maximum_capacity = memsize / 1024; |
| p->memory_error_information_handle = 0xfffe; /* none provided */ |
| p->number_of_memory_devices = 1; |
| |
| start += sizeof(struct smbios_type_16); |
| *((u16 *)start) = 0; |
| |
| return start + 2; |
| } |
| |
| /* Type 17 -- Memory Device */ |
| static void * |
| smbios_type_17_init(void *start) |
| { |
| struct smbios_type_17 *p = (struct smbios_type_17 *)start; |
| |
| p->header.type = 17; |
| p->header.length = sizeof(struct smbios_type_17); |
| p->header.handle = 0x1100; |
| |
| p->physical_memory_array_handle = 0x1000; |
| p->total_width = 64; |
| p->data_width = 64; |
| /* truncate memory_size_mb to 16 bits and clear most significant |
| bit [indicates size in MB] */ |
| u64 memsize = RamSize + RamSizeOver4G; |
| p->size = (u16) (memsize / (1024*1024)) & 0x7fff; |
| p->form_factor = 0x09; /* DIMM */ |
| p->device_set = 0; |
| p->device_locator_str = 1; |
| p->bank_locator_str = 0; |
| p->memory_type = 0x07; /* RAM */ |
| p->type_detail = 0; |
| |
| start += sizeof(struct smbios_type_17); |
| memcpy((char *)start, "DIMM 1", 7); |
| start += 7; |
| *((u8 *)start) = 0; |
| |
| return start+1; |
| } |
| |
| /* Type 19 -- Memory Array Mapped Address */ |
| static void * |
| smbios_type_19_init(void *start) |
| { |
| struct smbios_type_19 *p = (struct smbios_type_19 *)start; |
| |
| p->header.type = 19; |
| p->header.length = sizeof(struct smbios_type_19); |
| p->header.handle = 0x1300; |
| |
| p->starting_address = 0; |
| u64 memsize = RamSizeOver4G; |
| if (memsize) |
| memsize += 0x100000000ull; |
| else |
| memsize = RamSize; |
| p->ending_address = memsize / 1024 - 1; |
| p->memory_array_handle = 0x1000; |
| p->partition_width = 1; |
| |
| start += sizeof(struct smbios_type_19); |
| *((u16 *)start) = 0; |
| |
| return start + 2; |
| } |
| |
| /* Type 20 -- Memory Device Mapped Address */ |
| static void * |
| smbios_type_20_init(void *start) |
| { |
| struct smbios_type_20 *p = (struct smbios_type_20 *)start; |
| |
| p->header.type = 20; |
| p->header.length = sizeof(struct smbios_type_20); |
| p->header.handle = 0x1400; |
| |
| p->starting_address = 0; |
| u64 memsize = RamSizeOver4G; |
| if (memsize) |
| memsize += 0x100000000ull; |
| else |
| memsize = RamSize; |
| p->ending_address = memsize / 1024 - 1; |
| p->memory_device_handle = 0x1100; |
| p->memory_array_mapped_address_handle = 0x1300; |
| p->partition_row_position = 1; |
| p->interleave_position = 0; |
| p->interleaved_data_depth = 0; |
| |
| start += sizeof(struct smbios_type_20); |
| |
| *((u16 *)start) = 0; |
| return start+2; |
| } |
| |
| /* Type 32 -- System Boot Information */ |
| static void * |
| smbios_type_32_init(void *start) |
| { |
| struct smbios_type_32 *p = (struct smbios_type_32 *)start; |
| |
| p->header.type = 32; |
| p->header.length = sizeof(struct smbios_type_32); |
| p->header.handle = 0x2000; |
| memset(p->reserved, 0, 6); |
| p->boot_status = 0; /* no errors detected */ |
| |
| start += sizeof(struct smbios_type_32); |
| *((u16 *)start) = 0; |
| |
| return start+2; |
| } |
| |
| /* Type 127 -- End of Table */ |
| static void * |
| smbios_type_127_init(void *start) |
| { |
| struct smbios_type_127 *p = (struct smbios_type_127 *)start; |
| |
| p->header.type = 127; |
| p->header.length = sizeof(struct smbios_type_127); |
| p->header.handle = 0x7f00; |
| |
| start += sizeof(struct smbios_type_127); |
| *((u16 *)start) = 0; |
| |
| return start + 2; |
| } |
| |
| void |
| smbios_init(void) |
| { |
| if (! CONFIG_SMBIOS) |
| return; |
| |
| dprintf(3, "init SMBIOS tables\n"); |
| |
| char *start = malloc_high(2048); // XXX - determine real size |
| if (! start) { |
| dprintf(1, "No memory for smbios tables\n"); |
| return; |
| } |
| |
| u32 nr_structs = 0, max_struct_size = 0; |
| char *q, *p = start; |
| |
| #define add_struct(fn) { \ |
| q = (fn); \ |
| nr_structs++; \ |
| if ((q - p) > max_struct_size) \ |
| max_struct_size = q - p; \ |
| p = q; \ |
| } |
| |
| add_struct(smbios_type_0_init(p)); |
| add_struct(smbios_type_1_init(p)); |
| add_struct(smbios_type_3_init(p)); |
| int cpu_num, smp_cpus = CountCPUs; |
| for (cpu_num = 1; cpu_num <= smp_cpus; cpu_num++) |
| add_struct(smbios_type_4_init(p, cpu_num)); |
| add_struct(smbios_type_16_init(p)); |
| add_struct(smbios_type_17_init(p)); |
| add_struct(smbios_type_19_init(p)); |
| add_struct(smbios_type_20_init(p)); |
| add_struct(smbios_type_32_init(p)); |
| add_struct(smbios_type_127_init(p)); |
| |
| #undef add_struct |
| |
| smbios_entry_point_init(max_struct_size, p - start, start, nr_structs); |
| } |