/* SPDX-License-Identifier: GPL-2.0+ */ /* * Copyright (C) 2015, Bin Meng * * Adapted from coreboot src/include/smbios.h */ #ifndef _SMBIOS_H_ #define _SMBIOS_H_ #include #include /* SMBIOS spec version implemented */ #define SMBIOS_MAJOR_VER 3 #define SMBIOS_MINOR_VER 7 enum { SMBIOS_STR_MAX = 64, /* Maximum length allowed for a string */ }; /* SMBIOS structure types */ enum { SMBIOS_BIOS_INFORMATION = 0, SMBIOS_SYSTEM_INFORMATION = 1, SMBIOS_BOARD_INFORMATION = 2, SMBIOS_SYSTEM_ENCLOSURE = 3, SMBIOS_PROCESSOR_INFORMATION = 4, SMBIOS_CACHE_INFORMATION = 7, SMBIOS_SYSTEM_SLOTS = 9, SMBIOS_PHYS_MEMORY_ARRAY = 16, SMBIOS_MEMORY_DEVICE = 17, SMBIOS_MEMORY_ARRAY_MAPPED_ADDRESS = 19, SMBIOS_SYSTEM_BOOT_INFORMATION = 32, SMBIOS_END_OF_TABLE = 127 }; #define SMBIOS_INTERMEDIATE_OFFSET 16 #define SMBIOS_STRUCT_EOS_BYTES 2 struct str_lookup_table { u16 idx; const char *str; }; struct __packed smbios_entry { u8 anchor[4]; u8 checksum; u8 length; u8 major_ver; u8 minor_ver; u16 max_struct_size; u8 entry_point_rev; u8 formatted_area[5]; u8 intermediate_anchor[5]; u8 intermediate_checksum; u16 struct_table_length; u32 struct_table_address; u16 struct_count; u8 bcd_rev; }; /** * struct smbios3_entry - SMBIOS 3.0 (64-bit) Entry Point structure */ struct __packed smbios3_entry { /** @anchor: anchor string */ u8 anchor[5]; /** @checksum: checksum of the entry point structure */ u8 checksum; /** @length: length of the entry point structure */ u8 length; /** @major_ver: major version of the SMBIOS specification */ u8 major_ver; /** @minor_ver: minor version of the SMBIOS specification */ u8 minor_ver; /** @docrev: revision of the SMBIOS specification */ u8 doc_rev; /** @entry_point_rev: revision of the entry point structure */ u8 entry_point_rev; /** @reserved: reserved */ u8 reserved; /** maximum size of SMBIOS table */ u32 table_maximum_size; /** @struct_table_address: 64-bit physical starting address */ u64 struct_table_address; }; struct __packed smbios_header { u8 type; u8 length; u16 handle; }; struct __packed smbios_type0 { struct smbios_header hdr; u8 vendor; u8 bios_ver; u16 bios_start_segment; u8 bios_release_date; u8 bios_rom_size; u64 bios_characteristics; u8 bios_characteristics_ext1; u8 bios_characteristics_ext2; u8 bios_major_release; u8 bios_minor_release; u8 ec_major_release; u8 ec_minor_release; u16 extended_bios_rom_size; char eos[SMBIOS_STRUCT_EOS_BYTES]; }; #define SMBIOS_TYPE0_LENGTH_V24 0x18 #define SMBIOS_TYPE0_LENGTH_V31 0x1a #define SMBIOS_TYPE1_LENGTH_V20 0x08 #define SMBIOS_TYPE1_LENGTH_V21 0x19 #define SMBIOS_TYPE1_LENGTH_V24 0x1b #define SMBIOS_TYPE4_LENGTH_V20 0x1a #define SMBIOS_TYPE4_LENGTH_V23 0x23 #define SMBIOS_TYPE4_LENGTH_V25 0x28 #define SMBIOS_TYPE4_LENGTH_V26 0x2a #define SMBIOS_TYPE4_LENGTH_V30 0x30 #define SMBIOS_TYPE4_LENGTH_V36 0x32 #define SMBIOS_TYPE7_LENGTH_V20 0x0f #define SMBIOS_TYPE7_LENGTH_V21 0x13 #define SMBIOS_TYPE7_LENGTH_V31 0x1b #define SMBIOS_TYPE9_LENGTH_V20 0x0c #define SMBIOS_TYPE9_LENGTH_V21 0x0d #define SMBIOS_TYPE9_LENGTH_V26 0x11 #define SMBIOS_TYPE16_LENGTH_V21 0x0f #define SMBIOS_TYPE16_LENGTH_V27 0x17 #define SMBIOS_TYPE17_LENGTH_V21 0x15 #define SMBIOS_TYPE17_LENGTH_V23 0x1b #define SMBIOS_TYPE17_LENGTH_V26 0x1c #define SMBIOS_TYPE17_LENGTH_V27 0x22 #define SMBIOS_TYPE17_LENGTH_V28 0x28 #define SMBIOS_TYPE17_LENGTH_V32 0x54 #define SMBIOS_TYPE17_LENGTH_V33 0x5c #define SMBIOS_TYPE19_LENGTH_V21 0x0f #define SMBIOS_TYPE19_LENGTH_V27 0x1f struct __packed smbios_type1 { struct smbios_header hdr; u8 manufacturer; u8 product_name; u8 version; u8 serial_number; u8 uuid[16]; u8 wakeup_type; u8 sku_number; u8 family; char eos[SMBIOS_STRUCT_EOS_BYTES]; }; #define SMBIOS_TYPE2_CON_OBJ_HANDLE_SIZE sizeof(u16) struct __packed smbios_type2 { struct smbios_header hdr; u8 manufacturer; u8 product_name; u8 version; u8 serial_number; u8 asset_tag_number; u8 feature_flags; u8 chassis_location; u16 chassis_handle; u8 board_type; u8 number_contained_objects; /* * Dynamic bytes will be inserted here to store the objects. * length is equal to 'number_contained_objects'. */ char eos[SMBIOS_STRUCT_EOS_BYTES]; }; struct __packed smbios_type3 { struct smbios_header hdr; u8 manufacturer; u8 chassis_type; u8 version; u8 serial_number; u8 asset_tag_number; u8 bootup_state; u8 power_supply_state; u8 thermal_state; u8 security_status; u32 oem_defined; u8 height; u8 number_of_power_cords; u8 element_count; u8 element_record_length; /* * Dynamic bytes will be inserted here to store the elements. * length is equal to 'element_record_length' * 'element_record_length' */ u8 sku_number; char eos[SMBIOS_STRUCT_EOS_BYTES]; }; struct __packed smbios_type4 { struct smbios_header hdr; u8 socket_design; u8 processor_type; u8 processor_family; u8 processor_manufacturer; u32 processor_id[2]; u8 processor_version; 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; u8 serial_number; u8 asset_tag; u8 part_number; u8 core_count; u8 core_enabled; u8 thread_count; u16 processor_characteristics; u16 processor_family2; u16 core_count2; u16 core_enabled2; u16 thread_count2; u16 thread_enabled; char eos[SMBIOS_STRUCT_EOS_BYTES]; }; union __packed cache_config { struct { u16 level:3; u16 bsocketed:1; u16 rsvd0:1; u16 locate:2; u16 benabled:1; u16 opmode:2; u16 rsvd1:6; } fields; u16 data; }; union __packed cache_size_word { struct { u16 size:15; u16 granu:1; } fields; u16 data; }; union __packed cache_size_dword { struct { u32 size:31; u32 granu:1; } fields; u32 data; }; union __packed cache_sram_type { struct { u16 other:1; u16 unknown:1; u16 nonburst:1; u16 burst:1; u16 plburst:1; u16 sync:1; u16 async:1; u16 rsvd:9; } fields; u16 data; }; struct __packed smbios_type7 { struct smbios_header hdr; u8 socket_design; union cache_config config; union cache_size_word max_size; union cache_size_word inst_size; union cache_sram_type supp_sram_type; union cache_sram_type curr_sram_type; u8 speed; u8 err_corr_type; u8 sys_cache_type; u8 associativity; union cache_size_dword max_size2; union cache_size_dword inst_size2; char eos[SMBIOS_STRUCT_EOS_BYTES]; }; #define SMBIOS_TYPE9_PGROUP_SIZE 5 struct pci_attr_lookup_table { const char *str; u8 slot_type; u8 data_bus_width; u8 slot_length; u8 chara1; u8 chara2; }; union dev_func_num { struct { u8 dev_num:5; u8 func_num:3; } fields; u8 data; }; struct __packed smbios_type9 { struct smbios_header hdr; u8 socket_design; u8 slot_type; u8 slot_data_bus_width; u8 current_usage; u8 slot_length; u16 slot_id; u8 slot_characteristics_1; u8 slot_characteristics_2; u16 segment_group_number; u8 bus_number; union dev_func_num device_function_number; u8 electrical_bus_width; u8 peer_grouping_count; /* * Dynamic bytes will be inserted here to store peer_groups. * length is equal to 'peer_grouping_count' * 5 */ u8 slot_information; u8 slot_physical_width; u16 slot_pitch; u8 slot_height; char eos[SMBIOS_STRUCT_EOS_BYTES]; }; enum { SMBIOS_MEM_NONE = 0, SMBIOS_MEM_CUSTOM = 1, SMBIOS_MEM_FDT_MEM_NODE = 2, SMBIOS_MEM_FDT_MEMCON_NODE = 3 }; struct __packed smbios_type16 { struct smbios_header hdr; u8 location; u8 use; u8 mem_err_corr; u32 max_cap; u16 mem_err_info_hdl; u16 num_of_mem_dev; u64 ext_max_cap; char eos[SMBIOS_STRUCT_EOS_BYTES]; }; struct __packed smbios_type17 { struct smbios_header hdr; u16 phy_mem_array_hdl; u16 mem_err_info_hdl; u16 total_width; u16 data_width; u16 size; u8 form_factor; u8 dev_set; u8 dev_locator; u8 bank_locator; u8 mem_type; u16 type_detail; u16 speed; u8 manufacturer; u8 serial_number; u8 asset_tag; u8 part_number; u8 attributes; u32 ext_size; u16 config_mem_speed; u16 min_voltage; u16 max_voltage; u16 config_voltage; u8 mem_tech; u16 mem_op_mode_cap; u8 fw_ver; u16 module_man_id; u16 module_prod_id; u16 mem_subsys_con_man_id; u16 mem_subsys_con_prod_id; u64 nonvolatile_size; u64 volatile_size; u64 cache_size; u64 logical_size; u32 ext_speed; u32 ext_config_mem_speed; u16 pmic0_man_id; u16 pmic0_rev_num; u16 rcd_man_id; u16 rcd_rev_num; char eos[SMBIOS_STRUCT_EOS_BYTES]; }; struct __packed smbios_type19 { struct smbios_header hdr; u32 start_addr; u32 end_addr; u16 mem_array_hdl; u8 partition_wid; u64 ext_start_addr; u64 ext_end_addr; char eos[SMBIOS_STRUCT_EOS_BYTES]; }; struct __packed smbios_type32 { u8 type; u8 length; u16 handle; u8 reserved[6]; u8 boot_status; char eos[SMBIOS_STRUCT_EOS_BYTES]; }; struct __packed smbios_type127 { u8 type; u8 length; u16 handle; char eos[SMBIOS_STRUCT_EOS_BYTES]; }; /** * fill_smbios_header() - Fill the header of an SMBIOS table * * This fills the header of an SMBIOS table structure. * * @table: start address of the structure * @type: the type of structure * @length: the length of the formatted area of the structure * @handle: the structure's handle, a unique 16-bit number */ static inline void fill_smbios_header(void *table, int type, int length, int handle) { struct smbios_header *header = table; header->type = type; header->length = length - SMBIOS_STRUCT_EOS_BYTES; header->handle = handle; } /** * write_smbios_table() - Write SMBIOS table * * This writes SMBIOS table at a given address. * * @addr: start address to write SMBIOS table, 16-byte-alignment * recommended. Note that while the SMBIOS tables themself have no alignment * requirement, some systems may requires alignment. For example x86 systems * which put tables at f0000 require 16-byte alignment * * Return: end address of SMBIOS table (and start address for next entry) * or NULL in case of an error */ ulong write_smbios_table(ulong addr); /** * smbios_entry() - Get a valid struct smbios_entry pointer * * @address: address where smbios tables is located * @size: size of smbios table * @return: NULL or a valid pointer to a struct smbios_entry */ const struct smbios_entry *smbios_entry(u64 address, u32 size); /** * smbios_header() - Search for SMBIOS header type * * @entry: pointer to a struct smbios_entry * @type: SMBIOS type * @return: NULL or a valid pointer to a struct smbios_header */ const struct smbios_header *smbios_header(const struct smbios_entry *entry, int type); /** * smbios_string() - Return string from SMBIOS * * @header: pointer to struct smbios_header * @index: string index * @return: NULL or a valid char pointer */ char *smbios_string(const struct smbios_header *header, int index); /** * smbios_update_version() - Update the version string * * This can be called after the SMBIOS tables are written (e.g. after the U-Boot * main loop has started) to update the BIOS version string (SMBIOS table 0). * * @version: New version string to use * Return: 0 if OK, -ENOENT if no version string was previously written, * -ENOSPC if the new string is too large to fit */ int smbios_update_version(const char *version); /** * smbios_update_version_full() - Update the version string * * This can be called after the SMBIOS tables are written (e.g. after the U-Boot * main loop has started) to update the BIOS version string (SMBIOS table 0). * It scans for the correct place to put the version, so does not need U-Boot * to have actually written the tables itself (e.g. if a previous bootloader * did it). * * @smbios_tab: Start of SMBIOS tables * @version: New version string to use * Return: 0 if OK, -ENOENT if no version string was previously written, * -ENOSPC if the new string is too large to fit */ int smbios_update_version_full(void *smbios_tab, const char *version); /** * smbios_prepare_measurement() - Update smbios table for the measurement * * TCG specification requires to measure static configuration information. * This function clear the device dependent parameters such as * serial number for the measurement. * * @entry: pointer to a struct smbios3_entry * @header: pointer to a struct smbios_header */ void smbios_prepare_measurement(const struct smbios3_entry *entry, struct smbios_header *header); #endif /* _SMBIOS_H_ */