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smbios.c
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smbios.c
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/* SPDX-License-Identifier: GPL-2.0-only */
#include <assert.h>
#include <string.h>
#include <smbios.h>
#include <console/console.h>
#include <version.h>
#include <device/device.h>
#include <device/dram/spd.h>
#include <elog.h>
#include <endian.h>
#include <memory_info.h>
#include <spd.h>
#include <cbmem.h>
#include <commonlib/helpers.h>
#include <device/pci_ids.h>
#include <device/pci.h>
#include <device/pci_def.h>
#include <drivers/vpd/vpd.h>
#include <stdlib.h>
static u8 smbios_checksum(u8 *p, u32 length)
{
u8 ret = 0;
while (length--)
ret += *p++;
return -ret;
}
int smbios_add_string(u8 *start, const char *str)
{
int i = 1;
char *p = (char *)start;
/*
* Return 0 as required for empty strings.
* See Section 6.1.3 "Text Strings" of the SMBIOS specification.
*/
if (str == NULL || *str == '\0')
return 0;
for (;;) {
if (!*p) {
strcpy(p, str);
p += strlen(str);
*p++ = '\0';
*p++ = '\0';
return i;
}
if (!strcmp(p, str))
return i;
p += strlen(p)+1;
i++;
}
}
int smbios_string_table_len(u8 *start)
{
char *p = (char *)start;
int i, len = 0;
while (*p) {
i = strlen(p) + 1;
p += i;
len += i;
}
if (!len)
return 2;
return len + 1;
}
int smbios_full_table_len(struct smbios_header *header, u8 *str_table_start)
{
return header->length + smbios_string_table_len(str_table_start);
}
void *smbios_carve_table(unsigned long start, u8 type, u8 length, u16 handle)
{
struct smbios_header *t = (struct smbios_header *)start;
assert(length >= sizeof(*t));
memset(t, 0, length);
t->type = type;
t->length = length - 2;
t->handle = handle;
return t;
}
/* this function will fill the corresponding manufacturer */
void smbios_fill_dimm_manufacturer_from_id(uint16_t mod_id, struct smbios_type17 *t)
{
const char *const manufacturer = spd_manufacturer_name(mod_id);
if (manufacturer) {
t->manufacturer = smbios_add_string(t->eos, manufacturer);
} else {
char string_buffer[256];
snprintf(string_buffer, sizeof(string_buffer), "Unknown (%x)", mod_id);
t->manufacturer = smbios_add_string(t->eos, string_buffer);
}
}
static void trim_trailing_whitespace(char *buffer, size_t buffer_size)
{
size_t len = strnlen(buffer, buffer_size);
if (len == 0)
return;
for (char *p = buffer + len - 1; p >= buffer; --p) {
if (*p == ' ')
*p = 0;
else
break;
}
}
/** This function will fill the corresponding part number */
static void smbios_fill_dimm_part_number(const char *part_number, struct smbios_type17 *t)
{
int invalid;
size_t i, len;
char trimmed_part_number[DIMM_INFO_PART_NUMBER_SIZE];
strncpy(trimmed_part_number, part_number, sizeof(trimmed_part_number));
trimmed_part_number[sizeof(trimmed_part_number) - 1] = '\0';
/*
* SPD mandates that unused characters be represented with a ' '.
* We don't want to publish the whitespace in the SMBIOS tables.
*/
trim_trailing_whitespace(trimmed_part_number, sizeof(trimmed_part_number));
len = strlen(trimmed_part_number);
invalid = 0; /* assume valid */
for (i = 0; i < len; i++) {
if (trimmed_part_number[i] < ' ') {
invalid = 1;
trimmed_part_number[i] = '*';
}
}
if (len == 0) {
/* Null String in Part Number will have "None" instead. */
t->part_number = smbios_add_string(t->eos, "None");
} else if (invalid) {
char string_buffer[sizeof(trimmed_part_number) + 10];
snprintf(string_buffer, sizeof(string_buffer), "Invalid (%s)",
trimmed_part_number);
t->part_number = smbios_add_string(t->eos, string_buffer);
} else {
t->part_number = smbios_add_string(t->eos, trimmed_part_number);
}
}
/* Encodes the SPD serial number into hex */
static void smbios_fill_dimm_serial_number(const struct dimm_info *dimm,
struct smbios_type17 *t)
{
char serial[9];
snprintf(serial, sizeof(serial), "%02hhx%02hhx%02hhx%02hhx",
dimm->serial[0], dimm->serial[1], dimm->serial[2], dimm->serial[3]);
t->serial_number = smbios_add_string(t->eos, serial);
}
static const char *memory_device_type(u8 code)
{
/* SMBIOS spec 3.6 7.18.2 */
static const char * const type[] = {
"Other",
"Unknown",
"DRAM",
"EDRAM",
"VRAM",
"SRAM",
"RAM",
"ROM",
"Flash",
"EEPROM",
"FEPROM",
"EPROM",
"CDRAM",
"3DRAM",
"SDRAM",
"SGRAM",
"RDRAM",
"DDR",
"DDR2",
"DDR2 FB-DIMM",
"Reserved",
"Reserved",
"Reserved",
"DDR3",
"FBD2",
"DDR4", /* 0x1A */
"LPDDR",
"LPDDR2",
"LPDDR3",
"LPDDR4",
"Logical non-volatile device",
"HBM",
"HBM2",
"DDR5",
"LPDDR5",
"HBM3", /* 0x24 */
};
if (code >= MEMORY_TYPE_OTHER && code <= MEMORY_TYPE_HBM3)
return type[code - 1];
return "Unsupported";
}
static void dump_smbios_type17(struct dimm_info *dimm)
{
printk(BIOS_INFO, "memory at Channel-%d-DIMM-%d", dimm->channel_num, dimm->dimm_num);
printk(BIOS_INFO, " type is %s\n", memory_device_type(dimm->ddr_type));
printk(BIOS_INFO, "memory part number is %s\n", dimm->module_part_number);
if (dimm->max_speed_mts != 0)
printk(BIOS_INFO, "memory max speed is %d MT/s\n", dimm->max_speed_mts);
printk(BIOS_INFO, "memory speed is %d MT/s\n",
dimm->configured_speed_mts ? : dimm->ddr_frequency);
printk(BIOS_INFO, "memory size is %d MiB\n", dimm->dimm_size);
}
static int create_smbios_type17_for_dimm(struct dimm_info *dimm,
unsigned long *current, int *handle,
int type16_handle)
{
struct spd_info info;
get_spd_info(dimm->ddr_type, dimm->mod_type, &info);
struct smbios_type17 *t = smbios_carve_table(*current, SMBIOS_MEMORY_DEVICE,
sizeof(*t), *handle);
t->memory_type = dimm->ddr_type;
if (dimm->configured_speed_mts != 0)
t->clock_speed = dimm->configured_speed_mts;
else
t->clock_speed = dimm->ddr_frequency;
if (dimm->max_speed_mts != 0)
t->speed = dimm->max_speed_mts;
else
t->speed = dimm->ddr_frequency;
if (dimm->dimm_size < 0x7fff) {
t->size = dimm->dimm_size;
} else {
t->size = 0x7fff;
t->extended_size = dimm->dimm_size & 0x7fffffff;
}
t->data_width = 8 * (1 << (dimm->bus_width & 0x7));
t->total_width = t->data_width + 8 * ((dimm->bus_width & 0x18) >> 3);
t->form_factor = info.form_factor;
smbios_fill_dimm_manufacturer_from_id(dimm->mod_id, t);
smbios_fill_dimm_serial_number(dimm, t);
smbios_fill_dimm_asset_tag(dimm, t);
smbios_fill_dimm_locator(dimm, t);
/* put '\0' in the end of data */
dimm->module_part_number[DIMM_INFO_PART_NUMBER_SIZE - 1] = '\0';
smbios_fill_dimm_part_number((char *)dimm->module_part_number, t);
/* Voltage Levels */
t->configured_voltage = dimm->vdd_voltage;
t->minimum_voltage = dimm->vdd_voltage;
t->maximum_voltage = dimm->vdd_voltage;
/* Fill in type detail */
t->type_detail = info.type_detail;
/* Synchronous = 1 */
t->type_detail |= MEMORY_TYPE_DETAIL_SYNCHRONOUS;
/* no handle for error information */
t->memory_error_information_handle = 0xFFFE;
t->attributes = dimm->rank_per_dimm;
t->phys_memory_array_handle = type16_handle;
*handle += 1;
return smbios_full_table_len(&t->header, t->eos);
}
static int create_smbios_type17_for_empty_slot(struct dimm_info *dimm,
unsigned long *current, int *handle,
int type16_handle)
{
struct smbios_type17 *t = smbios_carve_table(*current, SMBIOS_MEMORY_DEVICE,
sizeof(*t), *handle);
t->phys_memory_array_handle = type16_handle;
/* no handle for error information */
t->memory_error_information_handle = 0xfffe;
t->total_width = 0xffff; /* Unknown */
t->data_width = 0xffff; /* Unknown */
t->form_factor = 0x2; /* Unknown */
smbios_fill_dimm_locator(dimm, t); /* Device and Bank */
t->memory_type = 0x2; /* Unknown */
t->type_detail = 0x2; /* Unknown */
*handle += 1;
if (CONFIG(DUMP_SMBIOS_TYPE17))
dump_smbios_type17(dimm);
return smbios_full_table_len(&t->header, t->eos);
}
#define VERSION_VPD "firmware_version"
static const char *vpd_get_bios_version(void)
{
int size;
const char *s;
char *version;
s = vpd_find(VERSION_VPD, &size, VPD_RO);
if (!s) {
printk(BIOS_ERR, "Find version from VPD %s failed\n", VERSION_VPD);
return NULL;
}
version = malloc(size + 1);
if (!version) {
printk(BIOS_ERR, "Failed to malloc %d bytes for VPD version\n", size + 1);
return NULL;
}
memcpy(version, s, size);
version[size] = '\0';
printk(BIOS_DEBUG, "Firmware version %s from VPD %s\n", version, VERSION_VPD);
return version;
}
static const char *get_bios_version(void)
{
const char *s;
#define SPACES \
" "
if (CONFIG(CHROMEOS))
return SPACES;
if (CONFIG(VPD_SMBIOS_VERSION)) {
s = vpd_get_bios_version();
if (s != NULL)
return s;
}
s = smbios_mainboard_bios_version();
if (s != NULL)
return s;
if (strlen(CONFIG_LOCALVERSION) != 0) {
printk(BIOS_DEBUG, "BIOS version set to CONFIG_LOCALVERSION: '%s'\n",
CONFIG_LOCALVERSION);
return CONFIG_LOCALVERSION;
}
printk(BIOS_DEBUG, "SMBIOS firmware version is set to coreboot_version: '%s'\n",
coreboot_version);
return coreboot_version;
}
static int smbios_write_type0(unsigned long *current, int handle)
{
struct smbios_type0 *t = smbios_carve_table(*current, SMBIOS_BIOS_INFORMATION,
sizeof(*t), handle);
t->vendor = smbios_add_string(t->eos, CONFIG_BIOS_VENDOR);
t->bios_release_date = smbios_add_string(t->eos, coreboot_dmi_date);
if (CONFIG(CHROMEOS_NVS)) {
uintptr_t version_address = (uintptr_t)t->eos;
/* SMBIOS offsets start at 1 rather than 0 */
version_address += (u32)smbios_string_table_len(t->eos) - 1;
smbios_type0_bios_version(version_address);
}
t->bios_version = smbios_add_string(t->eos, get_bios_version());
uint32_t rom_size = CONFIG_ROM_SIZE;
rom_size = MIN(CONFIG_ROM_SIZE, 16 * MiB);
t->bios_rom_size = (rom_size / 65535) - 1;
if (CONFIG_ROM_SIZE >= 1 * GiB)
t->extended_bios_rom_size = DIV_ROUND_UP(CONFIG_ROM_SIZE, GiB) | (1 << 14);
else
t->extended_bios_rom_size = DIV_ROUND_UP(CONFIG_ROM_SIZE, MiB);
t->system_bios_major_release = coreboot_major_revision;
t->system_bios_minor_release = coreboot_minor_revision;
smbios_ec_revision(&t->ec_major_release, &t->ec_minor_release);
t->bios_characteristics =
BIOS_CHARACTERISTICS_PCI_SUPPORTED |
BIOS_CHARACTERISTICS_SELECTABLE_BOOT |
BIOS_CHARACTERISTICS_UPGRADEABLE;
if (CONFIG(CARDBUS_PLUGIN_SUPPORT))
t->bios_characteristics |= BIOS_CHARACTERISTICS_PC_CARD;
if (CONFIG(HAVE_ACPI_TABLES))
t->bios_characteristics_ext1 = BIOS_EXT1_CHARACTERISTICS_ACPI;
t->bios_characteristics_ext2 = BIOS_EXT2_CHARACTERISTICS_TARGET;
const int len = smbios_full_table_len(&t->header, t->eos);
*current += len;
return len;
}
unsigned int __weak smbios_processor_external_clock(void)
{
return 0; /* Unknown */
}
unsigned int __weak smbios_processor_characteristics(void)
{
return 0;
}
unsigned int __weak smbios_cache_error_correction_type(u8 level)
{
return SMBIOS_CACHE_ERROR_CORRECTION_UNKNOWN;
}
unsigned int __weak smbios_cache_sram_type(void)
{
return SMBIOS_CACHE_SRAM_TYPE_UNKNOWN;
}
unsigned int __weak smbios_cache_conf_operation_mode(u8 level)
{
return SMBIOS_CACHE_OP_MODE_UNKNOWN; /* Unknown */
}
/* Returns the processor voltage in 100mV units */
unsigned int __weak smbios_cpu_get_voltage(void)
{
return 0; /* Unknown */
}
static int smbios_write_type1(unsigned long *current, int handle)
{
struct smbios_type1 *t = smbios_carve_table(*current, SMBIOS_SYSTEM_INFORMATION,
sizeof(*t), handle);
t->manufacturer = smbios_add_string(t->eos, smbios_system_manufacturer());
t->product_name = smbios_add_string(t->eos, smbios_system_product_name());
t->serial_number = smbios_add_string(t->eos, smbios_system_serial_number());
t->wakeup_type = smbios_system_wakeup_type();
t->sku = smbios_add_string(t->eos, smbios_system_sku());
t->version = smbios_add_string(t->eos, smbios_system_version());
#ifdef CONFIG_MAINBOARD_FAMILY
t->family = smbios_add_string(t->eos, CONFIG_MAINBOARD_FAMILY);
#endif
smbios_system_set_uuid(t->uuid);
const int len = smbios_full_table_len(&t->header, t->eos);
*current += len;
return len;
}
static int smbios_write_type2(unsigned long *current, int handle, const int chassis_handle)
{
struct smbios_type2 *t = smbios_carve_table(*current, SMBIOS_BOARD_INFORMATION,
sizeof(*t), handle);
t->manufacturer = smbios_add_string(t->eos, smbios_mainboard_manufacturer());
t->product_name = smbios_add_string(t->eos, smbios_mainboard_product_name());
t->serial_number = smbios_add_string(t->eos, smbios_mainboard_serial_number());
t->version = smbios_add_string(t->eos, smbios_mainboard_version());
t->asset_tag = smbios_add_string(t->eos, smbios_mainboard_asset_tag());
t->feature_flags = smbios_mainboard_feature_flags();
t->location_in_chassis = smbios_add_string(t->eos,
smbios_mainboard_location_in_chassis());
t->board_type = smbios_mainboard_board_type();
t->chassis_handle = chassis_handle;
const int len = smbios_full_table_len(&t->header, t->eos);
*current += len;
return len;
}
static int smbios_write_type3(unsigned long *current, int handle)
{
struct smbios_type3 *t = smbios_carve_table(*current, SMBIOS_SYSTEM_ENCLOSURE,
sizeof(*t), handle);
t->manufacturer = smbios_add_string(t->eos, smbios_system_manufacturer());
t->bootup_state = SMBIOS_STATE_SAFE;
t->power_supply_state = SMBIOS_STATE_SAFE;
t->thermal_state = SMBIOS_STATE_SAFE;
t->_type = smbios_mainboard_enclosure_type();
t->security_status = SMBIOS_STATE_SAFE;
t->number_of_power_cords = smbios_chassis_power_cords();
t->asset_tag_number = smbios_add_string(t->eos, smbios_mainboard_asset_tag());
t->version = smbios_add_string(t->eos, smbios_chassis_version());
t->serial_number = smbios_add_string(t->eos, smbios_chassis_serial_number());
const int len = smbios_full_table_len(&t->header, t->eos);
*current += len;
return len;
}
/*
* Write SMBIOS type 7.
* Fill in some fields with constant values, as gathering the information
* from CPUID is impossible.
*/
int smbios_write_type7(unsigned long *current,
const int handle,
const u8 level,
const u8 sram_type,
const enum smbios_cache_associativity associativity,
const enum smbios_cache_type type,
const size_t max_cache_size,
const size_t cache_size)
{
char buf[8];
struct smbios_type7 *t = smbios_carve_table(*current, SMBIOS_CACHE_INFORMATION,
sizeof(*t), handle);
snprintf(buf, sizeof(buf), "CACHE%x", level);
t->socket_designation = smbios_add_string(t->eos, buf);
t->cache_configuration = SMBIOS_CACHE_CONF_LEVEL(level) |
SMBIOS_CACHE_CONF_LOCATION(0) | /* Internal */
SMBIOS_CACHE_CONF_ENABLED(1) | /* Enabled */
SMBIOS_CACHE_CONF_OPERATION_MODE(smbios_cache_conf_operation_mode(level));
if (max_cache_size < (SMBIOS_CACHE_SIZE_MASK * KiB)) {
t->max_cache_size = max_cache_size / KiB;
t->max_cache_size2 = t->max_cache_size;
t->max_cache_size |= SMBIOS_CACHE_SIZE_UNIT_1KB;
t->max_cache_size2 |= SMBIOS_CACHE_SIZE2_UNIT_1KB;
} else {
if (max_cache_size < (SMBIOS_CACHE_SIZE_MASK * 64 * KiB))
t->max_cache_size = max_cache_size / (64 * KiB);
else
t->max_cache_size = SMBIOS_CACHE_SIZE_OVERFLOW;
t->max_cache_size2 = max_cache_size / (64 * KiB);
t->max_cache_size |= SMBIOS_CACHE_SIZE_UNIT_64KB;
t->max_cache_size2 |= SMBIOS_CACHE_SIZE2_UNIT_64KB;
}
if (cache_size < (SMBIOS_CACHE_SIZE_MASK * KiB)) {
t->installed_size = cache_size / KiB;
t->installed_size2 = t->installed_size;
t->installed_size |= SMBIOS_CACHE_SIZE_UNIT_1KB;
t->installed_size2 |= SMBIOS_CACHE_SIZE2_UNIT_1KB;
} else {
if (cache_size < (SMBIOS_CACHE_SIZE_MASK * 64 * KiB))
t->installed_size = cache_size / (64 * KiB);
else
t->installed_size = SMBIOS_CACHE_SIZE_OVERFLOW;
t->installed_size2 = cache_size / (64 * KiB);
t->installed_size |= SMBIOS_CACHE_SIZE_UNIT_64KB;
t->installed_size2 |= SMBIOS_CACHE_SIZE2_UNIT_64KB;
}
t->associativity = associativity;
t->supported_sram_type = sram_type;
t->current_sram_type = sram_type;
t->cache_speed = 0; /* Unknown */
t->error_correction_type = smbios_cache_error_correction_type(level);
t->system_cache_type = type;
const int len = smbios_full_table_len(&t->header, t->eos);
*current += len;
return len;
}
/* Convert the associativity as integer to the SMBIOS enum if available */
enum smbios_cache_associativity smbios_cache_associativity(const u8 num)
{
switch (num) {
case 1:
return SMBIOS_CACHE_ASSOCIATIVITY_DIRECT;
case 2:
return SMBIOS_CACHE_ASSOCIATIVITY_2WAY;
case 4:
return SMBIOS_CACHE_ASSOCIATIVITY_4WAY;
case 8:
return SMBIOS_CACHE_ASSOCIATIVITY_8WAY;
case 12:
return SMBIOS_CACHE_ASSOCIATIVITY_12WAY;
case 16:
return SMBIOS_CACHE_ASSOCIATIVITY_16WAY;
case 20:
return SMBIOS_CACHE_ASSOCIATIVITY_20WAY;
case 24:
return SMBIOS_CACHE_ASSOCIATIVITY_24WAY;
case 32:
return SMBIOS_CACHE_ASSOCIATIVITY_32WAY;
case 48:
return SMBIOS_CACHE_ASSOCIATIVITY_48WAY;
case 64:
return SMBIOS_CACHE_ASSOCIATIVITY_64WAY;
case 0xff:
return SMBIOS_CACHE_ASSOCIATIVITY_FULL;
default:
return SMBIOS_CACHE_ASSOCIATIVITY_UNKNOWN;
};
}
int smbios_write_type8(unsigned long *current, int *handle,
const struct port_information *port,
size_t num_ports)
{
unsigned int totallen = 0, i;
for (i = 0; i < num_ports; i++, port++) {
struct smbios_type8 *t = smbios_carve_table(*current,
SMBIOS_PORT_CONNECTOR_INFORMATION,
sizeof(*t), *handle);
t->internal_reference_designator =
smbios_add_string(t->eos, port->internal_reference_designator);
t->internal_connector_type = port->internal_connector_type;
t->external_reference_designator =
smbios_add_string(t->eos, port->external_reference_designator);
t->external_connector_type = port->external_connector_type;
t->port_type = port->port_type;
*handle += 1;
const int len = smbios_full_table_len(&t->header, t->eos);
*current += len;
totallen += len;
}
return totallen;
}
int smbios_write_type9(unsigned long *current, int *handle,
const char *name, const enum misc_slot_type type,
const enum slot_data_bus_bandwidth bandwidth,
const enum misc_slot_usage usage,
const enum misc_slot_length length,
const u16 id, u8 slot_char1, u8 slot_char2,
u8 segment_group, u8 bus, u8 dev_func)
{
struct smbios_type9 *t = smbios_carve_table(*current, SMBIOS_SYSTEM_SLOTS,
sizeof(*t), *handle);
t->slot_designation = smbios_add_string(t->eos, name ? name : "SLOT");
t->slot_type = type;
/* TODO add slot_id support, will be "_SUN" for ACPI devices */
t->slot_id = id;
t->slot_data_bus_width = bandwidth;
t->current_usage = usage;
t->slot_length = length;
t->slot_characteristics_1 = slot_char1;
t->slot_characteristics_2 = slot_char2;
t->segment_group_number = segment_group;
t->bus_number = bus;
t->device_function_number = dev_func;
t->data_bus_width = SlotDataBusWidthOther;
const int len = smbios_full_table_len(&t->header, t->eos);
*current += len;
*handle += 1;
return len;
}
static int smbios_write_type11(unsigned long *current, int *handle)
{
struct device *dev;
struct smbios_type11 *t = smbios_carve_table(*current, SMBIOS_OEM_STRINGS,
sizeof(*t), *handle);
for (dev = all_devices; dev; dev = dev->next) {
if (dev->ops && dev->ops->get_smbios_strings)
dev->ops->get_smbios_strings(dev, t);
}
if (t->count == 0) {
memset(t, 0, sizeof(*t));
return 0;
}
const int len = smbios_full_table_len(&t->header, t->eos);
*current += len;
(*handle)++;
return len;
}
static int smbios_write_type16(unsigned long *current, int *handle)
{
int i;
uint64_t max_capacity;
struct memory_info *meminfo;
meminfo = cbmem_find(CBMEM_ID_MEMINFO);
if (meminfo == NULL)
return 0; /* can't find mem info in cbmem */
printk(BIOS_INFO, "Create SMBIOS type 16\n");
if (meminfo->max_capacity_mib == 0 || meminfo->number_of_devices == 0) {
/* Fill in defaults if not provided */
meminfo->number_of_devices = 0;
meminfo->max_capacity_mib = 0;
for (i = 0; i < meminfo->dimm_cnt && i < ARRAY_SIZE(meminfo->dimm); i++) {
meminfo->max_capacity_mib += meminfo->dimm[i].dimm_size;
meminfo->number_of_devices += !!meminfo->dimm[i].dimm_size;
}
}
struct smbios_type16 *t = smbios_carve_table(*current, SMBIOS_PHYS_MEMORY_ARRAY,
sizeof(*t), *handle);
t->location = MEMORY_ARRAY_LOCATION_SYSTEM_BOARD;
t->use = MEMORY_ARRAY_USE_SYSTEM;
t->memory_error_correction = meminfo->ecc_type;
/* no error information handle available */
t->memory_error_information_handle = 0xFFFE;
max_capacity = meminfo->max_capacity_mib;
if (max_capacity * (MiB / KiB) < SMBIOS_USE_EXTENDED_MAX_CAPACITY)
t->maximum_capacity = max_capacity * (MiB / KiB);
else {
t->maximum_capacity = SMBIOS_USE_EXTENDED_MAX_CAPACITY;
t->extended_maximum_capacity = max_capacity * MiB;
}
t->number_of_memory_devices = meminfo->number_of_devices;
const int len = smbios_full_table_len(&t->header, t->eos);
*current += len;
(*handle)++;
return len;
}
static int smbios_write_type17(unsigned long *current, int *handle, int type16)
{
int totallen = 0;
int i;
struct memory_info *meminfo;
meminfo = cbmem_find(CBMEM_ID_MEMINFO);
if (meminfo == NULL)
return 0; /* can't find mem info in cbmem */
printk(BIOS_INFO, "Create SMBIOS type 17\n");
for (i = 0; i < meminfo->dimm_cnt && i < ARRAY_SIZE(meminfo->dimm); i++) {
struct dimm_info *d = &meminfo->dimm[i];
/*
* Windows 10 GetPhysicallyInstalledSystemMemory functions reads SMBIOS tables
* type 16 and type 17. The type 17 tables need to point to a type 16 table.
* Otherwise, the physical installed memory size is guessed from the system
* memory map, which results in a slightly smaller value than the actual size.
*/
int len;
if (d->dimm_size > 0)
len = create_smbios_type17_for_dimm(d, current, handle, type16);
else
len = create_smbios_type17_for_empty_slot(d, current, handle, type16);
*current += len;
totallen += len;
}
return totallen;
}
static int smbios_write_type19(unsigned long *current, int *handle, int type16)
{
int i;
struct memory_info *meminfo;
meminfo = cbmem_find(CBMEM_ID_MEMINFO);
if (meminfo == NULL)
return 0; /* can't find mem info in cbmem */
struct smbios_type19 *t = smbios_carve_table(*current,
SMBIOS_MEMORY_ARRAY_MAPPED_ADDRESS,
sizeof(*t), *handle);
t->memory_array_handle = type16;
for (i = 0; i < meminfo->dimm_cnt && i < ARRAY_SIZE(meminfo->dimm); i++) {
if (meminfo->dimm[i].dimm_size > 0) {
t->extended_ending_address += meminfo->dimm[i].dimm_size;
t->partition_width++;
}
}
t->extended_ending_address *= MiB;
/* Check if it fits into regular address */
if (t->extended_ending_address >= KiB &&
t->extended_ending_address < 0x40000000000ULL) {
/*
* FIXME: The starting address is SoC specific, but SMBIOS tables are only
* exported on x86 where it's always 0.
*/
t->starting_address = 0;
t->ending_address = t->extended_ending_address / KiB - 1;
t->extended_starting_address = ~0;
t->extended_ending_address = ~0;
} else {
t->starting_address = ~0;
t->ending_address = ~0;
t->extended_starting_address = 0;
t->extended_ending_address--;
}
const int len = smbios_full_table_len(&t->header, t->eos);
*current += len;
*handle += 1;
return len;
}
static int smbios_write_type20_table(unsigned long *current, int *handle, u32 addr_start,
u32 addr_end, int type17_handle, int type19_handle)
{
struct smbios_type20 *t = smbios_carve_table(*current, SMBIOS_MEMORY_DEVICE_MAPPED_ADDRESS,
sizeof(*t), *handle);
t->memory_device_handle = type17_handle;
t->memory_array_mapped_address_handle = type19_handle;
t->addr_start = addr_start;
t->addr_end = addr_end;
t->partition_row_pos = 0xff;
t->interleave_pos = 0xff;
t->interleave_depth = 0xff;
const int len = smbios_full_table_len(&t->header, t->eos);
*current += len;
*handle += 1;
return len;
}
static int smbios_write_type20(unsigned long *current, int *handle,
int type17_handle, int type19_handle)
{
u32 start_addr = 0;
int totallen = 0;
int i;
struct memory_info *meminfo;
meminfo = cbmem_find(CBMEM_ID_MEMINFO);
if (meminfo == NULL)
return 0; /* can't find mem info in cbmem */
printk(BIOS_INFO, "Create SMBIOS type 20\n");
for (i = 0; i < meminfo->dimm_cnt && i < ARRAY_SIZE(meminfo->dimm); i++) {
struct dimm_info *dimm;
dimm = &meminfo->dimm[i];
if (dimm->dimm_size == 0)
continue;
u32 end_addr = start_addr + (dimm->dimm_size << 10) - 1;
totallen += smbios_write_type20_table(current, handle, start_addr, end_addr,
type17_handle, type19_handle);
start_addr = end_addr + 1;
}
return totallen;
}
int smbios_write_type28(unsigned long *current, int *handle,
const char *name,
const enum smbios_temp_location location,
const enum smbios_temp_status status,
u16 max_value, u16 min_value,
u16 resolution, u16 tolerance,
u16 accuracy,
u32 oem,
u16 nominal_value)
{
struct smbios_type28 *t = smbios_carve_table(*current, SMBIOS_TEMPERATURE_PROBE,
sizeof(*t), *handle);
t->description = smbios_add_string(t->eos, name ? name : "Temperature");
t->location_and_status = location | (status << 5);
t->maximum_value = max_value;
t->minimum_value = min_value;
t->resolution = resolution;
t->tolerance = tolerance;
t->accuracy = accuracy;
t->oem_defined = oem;
t->nominal_value = nominal_value;
const int len = smbios_full_table_len(&t->header, t->eos);
*current += len;
*handle += 1;
return len;
}
static int smbios_write_type32(unsigned long *current, int handle)
{
struct smbios_type32 *t = smbios_carve_table(*current, SMBIOS_SYSTEM_BOOT_INFORMATION,
sizeof(*t), handle);
const int len = smbios_full_table_len(&t->header, t->eos);
*current += len;
return len;
}
int smbios_write_type38(unsigned long *current, int *handle,
const enum smbios_bmc_interface_type interface_type,
const u8 ipmi_rev, const u8 i2c_addr, const u8 nv_addr,
const u64 base_addr, const u8 base_modifier,
const u8 irq)
{
struct smbios_type38 *t = smbios_carve_table(*current, SMBIOS_IPMI_DEVICE_INFORMATION,
sizeof(*t), *handle);
t->interface_type = interface_type;
t->ipmi_rev = ipmi_rev;
t->i2c_slave_addr = i2c_addr;
t->nv_storage_addr = nv_addr;
t->base_address = base_addr;
t->base_address_modifier = base_modifier;
t->irq = irq;
const int len = smbios_full_table_len(&t->header, t->eos);
*current += len;
*handle += 1;
return len;
}
int smbios_write_type39(unsigned long *current, int *handle,
u8 unit_group, const char *loc, const char *dev_name,
const char *man, const char *serial_num,
const char *tag_num, const char *part_num,
const char *rev_lvl, u16 max_pow_cap,
const struct power_supply_ch *ps_ch)
{
struct smbios_type39 *t = smbios_carve_table(*current,
SMBIOS_SYSTEM_POWER_SUPPLY,
sizeof(*t), *handle);
uint16_t val = 0;
uint16_t ps_type, ps_status, vol_switch, ps_unplug, ps_present, hot_rep;
t->power_unit_group = unit_group;
t->location = smbios_add_string(t->eos, loc);
t->device_name = smbios_add_string(t->eos, dev_name);
t->manufacturer = smbios_add_string(t->eos, man);
t->serial_number = smbios_add_string(t->eos, serial_num);
t->asset_tag_number = smbios_add_string(t->eos, tag_num);
t->model_part_number = smbios_add_string(t->eos, part_num);
t->revision_level = smbios_add_string(t->eos, rev_lvl);
t->max_power_capacity = max_pow_cap;
ps_type = ps_ch->power_supply_type & 0xF;
ps_status = ps_ch->power_supply_status & 0x7;
vol_switch = ps_ch->input_voltage_range_switch & 0xF;
ps_unplug = ps_ch->power_supply_unplugged & 0x1;
ps_present = ps_ch->power_supply_present & 0x1;
hot_rep = ps_ch->power_supply_hot_replaceble & 0x1;
val |= (ps_type << 10);
val |= (ps_status << 7);
val |= (vol_switch << 3);
val |= (ps_unplug << 2);
val |= (ps_present << 1);
val |= hot_rep;
t->power_supply_characteristics = val;
t->input_voltage_probe_handle = 0xFFFF;
t->cooling_device_handle = 0xFFFF;
t->input_current_probe_handle = 0xFFFF;
const int len = smbios_full_table_len(&t->header, t->eos);
*current += len;
*handle += 1;
return len;
}
int smbios_write_type41(unsigned long *current, int *handle,
const char *name, u8 instance, u16 segment_group,
u8 bus, u8 device, u8 function, u8 device_type)
{
struct smbios_type41 *t = smbios_carve_table(*current,
SMBIOS_ONBOARD_DEVICES_EXTENDED_INFORMATION,
sizeof(*t), *handle);
t->reference_designation = smbios_add_string(t->eos, name);
t->device_type = device_type;
t->device_status = 1;
t->device_type_instance = instance;
t->segment_group_number = segment_group;
t->bus_number = bus;
t->device_number = device;
t->function_number = function;
const int len = smbios_full_table_len(&t->header, t->eos);
*current += len;
*handle += 1;
return len;
}
int smbios_write_type43(unsigned long *current, int *handle, const u32 vendor_id,
const u8 major_spec_ver, const u8 minor_spec_ver,
const u32 fw_ver1, const u32 fw_ver2, const char *description,
const u64 characteristics, const u32 oem_defined)
{