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u-boot/cmd/smbios.c
Raymond Mao e6285168f8 cmd: update smbios cmd 
Update the cmd according to the changes of the smbios library:
1. Refactor smbios cmd print functions to match the content defined
   by the specification.
2. Add new print functions for Type 3, 4 and 7.
3. Remove the fallback string "Not specified" from smbios_get_string,
   as the spec requires a NULL output for those undefined strings.
4. Update the test_cmd_smbios_sandbox pytest expected result to
   align with the smbios library changes and add new pytest
   test_cmd_smbios_sysinfo_verbose to test the verbose smbios
   output.

Signed-off-by: Raymond Mao <raymond.mao@linaro.org>
2025-01-14 14:29:29 -06:00

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* The 'smbios' command displays information from the SMBIOS table.
*
* Copyright (c) 2023, Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
*/
#include <command.h>
#include <hexdump.h>
#include <mapmem.h>
#include <smbios.h>
#include <tables_csum.h>
#include <asm/global_data.h>
DECLARE_GLOBAL_DATA_PTR;
static const struct str_lookup_table wakeup_type_strings[] = {
{ SMBIOS_WAKEUP_TYPE_RESERVED, "Reserved" },
{ SMBIOS_WAKEUP_TYPE_OTHER, "Other" },
{ SMBIOS_WAKEUP_TYPE_UNKNOWN, "Unknown" },
{ SMBIOS_WAKEUP_TYPE_APM_TIMER, "APM Timer" },
{ SMBIOS_WAKEUP_TYPE_MODEM_RING, "Modem Ring" },
{ SMBIOS_WAKEUP_TYPE_LAN_REMOTE, "Lan Remote" },
{ SMBIOS_WAKEUP_TYPE_POWER_SWITCH, "Power Switch" },
{ SMBIOS_WAKEUP_TYPE_PCI_PME, "PCI PME#" },
{ SMBIOS_WAKEUP_TYPE_AC_POWER_RESTORED, "AC Power Restored" },
};
static const struct str_lookup_table boardtype_strings[] = {
{ SMBIOS_BOARD_TYPE_UNKNOWN, "Unknown" },
{ SMBIOS_BOARD_TYPE_OTHER, "Other" },
{ SMBIOS_BOARD_TYPE_SERVER_BLADE, "Server Blade" },
{ SMBIOS_BOARD_TYPE_CON_SWITCH, "Connectivity Switch" },
{ SMBIOS_BOARD_TYPE_SM_MODULE, "System Management Module" },
{ SMBIOS_BOARD_TYPE_PROCESSOR_MODULE, "Processor Module" },
{ SMBIOS_BOARD_TYPE_IO_MODULE, "I/O Module" },
{ SMBIOS_BOARD_TYPE_MEM_MODULE, "Memory Module" },
{ SMBIOS_BOARD_TYPE_DAUGHTER_BOARD, "Daughter board" },
{ SMBIOS_BOARD_TYPE_MOTHERBOARD, "Motherboard" },
{ SMBIOS_BOARD_TYPE_PROC_MEM_MODULE, "Processor/Memory Module" },
{ SMBIOS_BOARD_TYPE_PROC_IO_MODULE, "Processor/IO Module" },
{ SMBIOS_BOARD_TYPE_INTERCON, "Interconnect board" },
};
static const struct str_lookup_table chassis_state_strings[] = {
{ SMBIOS_STATE_OTHER, "Other" },
{ SMBIOS_STATE_UNKNOWN, "Unknown" },
{ SMBIOS_STATE_SAFE, "Safe" },
{ SMBIOS_STATE_WARNING, "Warning" },
{ SMBIOS_STATE_CRITICAL, "Critical" },
{ SMBIOS_STATE_NONRECOVERABLE, "Non-recoverable" },
};
static const struct str_lookup_table chassis_security_strings[] = {
{ SMBIOS_SECURITY_OTHER, "Other" },
{ SMBIOS_SECURITY_UNKNOWN, "Unknown" },
{ SMBIOS_SECURITY_NONE, "None" },
{ SMBIOS_SECURITY_EXTINT_LOCK, "External interface locked out" },
{ SMBIOS_SECURITY_EXTINT_EN, "External interface enabled" },
};
static const struct str_lookup_table processor_type_strings[] = {
{ SMBIOS_PROCESSOR_TYPE_OTHER, "Other" },
{ SMBIOS_PROCESSOR_TYPE_UNKNOWN, "Unknown" },
{ SMBIOS_PROCESSOR_TYPE_CENTRAL, "Central Processor" },
{ SMBIOS_PROCESSOR_TYPE_MATH, "Math Processor" },
{ SMBIOS_PROCESSOR_TYPE_DSP, "DSP Processor" },
{ SMBIOS_PROCESSOR_TYPE_VIDEO, "Video Processor" },
};
static const struct str_lookup_table processor_family_strings[] = {
{ SMBIOS_PROCESSOR_FAMILY_OTHER, "Other" },
{ SMBIOS_PROCESSOR_FAMILY_UNKNOWN, "Unknown" },
{ SMBIOS_PROCESSOR_FAMILY_RSVD, "Reserved" },
{ SMBIOS_PROCESSOR_FAMILY_ARMV7, "ARMv7" },
{ SMBIOS_PROCESSOR_FAMILY_ARMV8, "ARMv8" },
{ SMBIOS_PROCESSOR_FAMILY_RV32, "RISC-V RV32" },
{ SMBIOS_PROCESSOR_FAMILY_RV64, "RISC-V RV64" },
};
static const struct str_lookup_table processor_upgrade_strings[] = {
{ SMBIOS_PROCESSOR_UPGRADE_OTHER, "Other" },
{ SMBIOS_PROCESSOR_UPGRADE_UNKNOWN, "Unknown" },
{ SMBIOS_PROCESSOR_UPGRADE_NONE, "None" },
};
static const struct str_lookup_table err_corr_type_strings[] = {
{ SMBIOS_CACHE_ERRCORR_OTHER, "Other" },
{ SMBIOS_CACHE_ERRCORR_UNKNOWN, "Unknown" },
{ SMBIOS_CACHE_ERRCORR_NONE, "None" },
{ SMBIOS_CACHE_ERRCORR_PARITY, "Parity" },
{ SMBIOS_CACHE_ERRCORR_SBITECC, "Single-bit ECC" },
{ SMBIOS_CACHE_ERRCORR_MBITECC, "Multi-bit ECC" },
};
static const struct str_lookup_table sys_cache_type_strings[] = {
{ SMBIOS_CACHE_SYSCACHE_TYPE_OTHER, "Other" },
{ SMBIOS_CACHE_SYSCACHE_TYPE_UNKNOWN, "Unknown" },
{ SMBIOS_CACHE_SYSCACHE_TYPE_INST, "Instruction" },
{ SMBIOS_CACHE_SYSCACHE_TYPE_DATA, "Data" },
{ SMBIOS_CACHE_SYSCACHE_TYPE_UNIFIED, "Unified" },
};
static const struct str_lookup_table associativity_strings[] = {
{ SMBIOS_CACHE_ASSOC_OTHER, "Other" },
{ SMBIOS_CACHE_ASSOC_UNKNOWN, "Unknown" },
{ SMBIOS_CACHE_ASSOC_DMAPPED, "Direct Mapped" },
{ SMBIOS_CACHE_ASSOC_2WAY, "2-way Set-Associative" },
{ SMBIOS_CACHE_ASSOC_4WAY, "4-way Set-Associative" },
{ SMBIOS_CACHE_ASSOC_FULLY, "Fully Associative" },
{ SMBIOS_CACHE_ASSOC_8WAY, "8-way Set-Associative" },
{ SMBIOS_CACHE_ASSOC_16WAY, "16-way Set-Associative" },
{ SMBIOS_CACHE_ASSOC_12WAY, "12-way Set-Associative" },
{ SMBIOS_CACHE_ASSOC_24WAY, "24-way Set-Associative" },
{ SMBIOS_CACHE_ASSOC_32WAY, "32-way Set-Associative" },
{ SMBIOS_CACHE_ASSOC_48WAY, "48-way Set-Associative" },
{ SMBIOS_CACHE_ASSOC_64WAY, "64-way Set-Associative" },
{ SMBIOS_CACHE_ASSOC_20WAY, "20-way Set-Associative" },
};
/**
* smbios_get_string() - get SMBIOS string from table
*
* @table: SMBIOS table
* @index: index of the string
* Return: address of string, may point to empty string
*/
static const char *smbios_get_string(void *table, int index)
{
const char *str = (char *)table +
((struct smbios_header *)table)->length;
static const char fallback[] = "";
if (!index)
return fallback;
if (!*str)
++str;
for (--index; *str && index; --index)
str += strlen(str) + 1;
return str;
}
static struct smbios_header *next_table(struct smbios_header *table)
{
const char *str;
if (table->type == SMBIOS_END_OF_TABLE)
return NULL;
str = smbios_get_string(table, -1);
return (struct smbios_header *)(++str);
}
static void smbios_print_generic(struct smbios_header *table)
{
char *str = (char *)table + table->length;
if (CONFIG_IS_ENABLED(HEXDUMP)) {
printf("Header and Data:\n");
print_hex_dump("\t", DUMP_PREFIX_OFFSET, 16, 1,
table, table->length, false);
}
if (*str) {
printf("Strings:\n");
for (int index = 1; *str; ++index) {
printf("\tString %u: %s\n", index, str);
str += strlen(str) + 1;
}
}
}
static void smbios_print_str(const char *label, void *table, u8 index)
{
printf("\t%s: %s\n", label, smbios_get_string(table, index));
}
static void smbios_print_lookup_str(const struct str_lookup_table *table,
u16 index, u16 array_size,
const char *prefix)
{
int i;
const char *str = NULL;
for (i = 0; i < array_size; i++) {
if ((table + i)->idx == index)
str = (table + i)->str;
}
if (str)
printf("\t%s: %s\n", prefix, str);
else
printf("\t%s: [%04x]\n", prefix, index);
}
static void smbios_print_type0(struct smbios_type0 *table)
{
printf("BIOS Information\n");
smbios_print_str("Vendor", table, table->vendor);
smbios_print_str("BIOS Version", table, table->bios_ver);
/* Keep table->bios_start_segment as 0 for UEFI-based systems */
smbios_print_str("BIOS Release Date", table, table->bios_release_date);
printf("\tBIOS ROM Size: 0x%02x\n", table->bios_rom_size);
printf("\tBIOS Characteristics: 0x%016llx\n",
table->bios_characteristics);
printf("\tBIOS Characteristics Extension Byte 1: 0x%02x\n",
table->bios_characteristics_ext1);
printf("\tBIOS Characteristics Extension Byte 2: 0x%02x\n",
table->bios_characteristics_ext2);
printf("\tSystem BIOS Major Release: 0x%02x\n",
table->bios_major_release);
printf("\tSystem BIOS Minor Release: 0x%02x\n",
table->bios_minor_release);
printf("\tEmbedded Controller Firmware Major Release: 0x%02x\n",
table->ec_major_release);
printf("\tEmbedded Controller Firmware Minor Release: 0x%02x\n",
table->ec_minor_release);
printf("\tExtended BIOS ROM Size: 0x%04x\n",
table->extended_bios_rom_size);
}
static void smbios_print_type1(struct smbios_type1 *table)
{
printf("System Information\n");
smbios_print_str("Manufacturer", table, table->manufacturer);
smbios_print_str("Product Name", table, table->product_name);
smbios_print_str("Version", table, table->version);
smbios_print_str("Serial Number", table, table->serial_number);
if (table->hdr.length >= SMBIOS_TYPE1_LENGTH_V21) {
printf("\tUUID: %pUl\n", table->uuid);
smbios_print_lookup_str(wakeup_type_strings,
table->wakeup_type,
ARRAY_SIZE(wakeup_type_strings),
"Wake-up Type");
}
if (table->hdr.length >= SMBIOS_TYPE1_LENGTH_V24) {
smbios_print_str("SKU Number", table, table->sku_number);
smbios_print_str("Family", table, table->family);
}
}
static void smbios_print_type2(struct smbios_type2 *table)
{
int i;
u8 *addr = (u8 *)table + offsetof(struct smbios_type2, eos);
printf("Baseboard Information\n");
smbios_print_str("Manufacturer", table, table->manufacturer);
smbios_print_str("Product Name", table, table->product_name);
smbios_print_str("Version", table, table->version);
smbios_print_str("Serial Number", table, table->serial_number);
smbios_print_str("Asset Tag", table, table->asset_tag_number);
printf("\tFeature Flags: 0x%02x\n", table->feature_flags);
smbios_print_str("Chassis Location", table, table->chassis_location);
printf("\tChassis Handle: 0x%04x\n", table->chassis_handle);
smbios_print_lookup_str(boardtype_strings,
table->board_type,
ARRAY_SIZE(boardtype_strings),
"Board Type");
printf("\tNumber of Contained Object Handles: 0x%02x\n",
table->number_contained_objects);
if (!table->number_contained_objects)
return;
printf("\tContained Object Handles:\n");
for (i = 0; i < table->number_contained_objects; i++) {
printf("\t\tObject[%03d]:\n", i);
if (CONFIG_IS_ENABLED(HEXDUMP))
print_hex_dump("\t\t", DUMP_PREFIX_OFFSET, 16, 1, addr,
sizeof(u16), false);
addr += sizeof(u16);
}
printf("\n");
}
static void smbios_print_type3(struct smbios_type3 *table)
{
int i;
u8 *addr = (u8 *)table + offsetof(struct smbios_type3, sku_number);
printf("Baseboard Information\n");
smbios_print_str("Manufacturer", table, table->manufacturer);
printf("\tType: 0x%02x\n", table->chassis_type);
smbios_print_str("Version", table, table->version);
smbios_print_str("Serial Number", table, table->serial_number);
smbios_print_str("Asset Tag", table, table->asset_tag_number);
smbios_print_lookup_str(chassis_state_strings,
table->bootup_state,
ARRAY_SIZE(chassis_state_strings),
"Boot-up State");
smbios_print_lookup_str(chassis_state_strings,
table->power_supply_state,
ARRAY_SIZE(chassis_state_strings),
"Power Supply State");
smbios_print_lookup_str(chassis_state_strings,
table->thermal_state,
ARRAY_SIZE(chassis_state_strings),
"Thermal State");
smbios_print_lookup_str(chassis_security_strings,
table->security_status,
ARRAY_SIZE(chassis_security_strings),
"Security Status");
printf("\tOEM-defined: 0x%08x\n", table->oem_defined);
printf("\tHeight: 0x%02x\n", table->height);
printf("\tNumber of Power Cords: 0x%02x\n",
table->number_of_power_cords);
printf("\tContained Element Count: 0x%02x\n", table->element_count);
printf("\tContained Element Record Length: 0x%02x\n",
table->element_record_length);
if (table->element_count) {
printf("\tContained Elements:\n");
for (i = 0; i < table->element_count; i++) {
printf("\t\tElement[%03d]:\n", i);
if (CONFIG_IS_ENABLED(HEXDUMP))
print_hex_dump("\t\t", DUMP_PREFIX_OFFSET, 16,
1, addr,
table->element_record_length,
false);
printf("\t\tContained Element Type: 0x%02x\n", *addr);
printf("\t\tContained Element Minimum: 0x%02x\n",
*(addr + 1));
printf("\t\tContained Element Maximum: 0x%02x\n",
*(addr + 2));
addr += table->element_record_length;
}
}
smbios_print_str("SKU Number", table, *addr);
}
static void smbios_print_type4(struct smbios_type4 *table)
{
printf("Processor Information:\n");
smbios_print_str("Socket Designation", table, table->socket_design);
smbios_print_lookup_str(processor_type_strings,
table->processor_type,
ARRAY_SIZE(processor_type_strings),
"Processor Type");
smbios_print_lookup_str(processor_family_strings,
table->processor_family,
ARRAY_SIZE(processor_family_strings),
"Processor Family");
smbios_print_str("Processor Manufacturer", table,
table->processor_manufacturer);
printf("\tProcessor ID word 0: 0x%08x\n", table->processor_id[0]);
printf("\tProcessor ID word 1: 0x%08x\n", table->processor_id[1]);
smbios_print_str("Processor Version", table, table->processor_version);
printf("\tVoltage: 0x%02x\n", table->voltage);
printf("\tExternal Clock: 0x%04x\n", table->external_clock);
printf("\tMax Speed: 0x%04x\n", table->max_speed);
printf("\tCurrent Speed: 0x%04x\n", table->current_speed);
printf("\tStatus: 0x%02x\n", table->status);
smbios_print_lookup_str(processor_upgrade_strings,
table->processor_upgrade,
ARRAY_SIZE(processor_upgrade_strings),
"Processor Upgrade");
printf("\tL1 Cache Handle: 0x%04x\n", table->l1_cache_handle);
printf("\tL2 Cache Handle: 0x%04x\n", table->l2_cache_handle);
printf("\tL3 Cache Handle: 0x%04x\n", table->l3_cache_handle);
smbios_print_str("Serial Number", table, table->serial_number);
smbios_print_str("Asset Tag", table, table->asset_tag);
smbios_print_str("Part Number", table, table->part_number);
printf("\tCore Count: 0x%02x\n", table->core_count);
printf("\tCore Enabled: 0x%02x\n", table->core_enabled);
printf("\tThread Count: 0x%02x\n", table->thread_count);
printf("\tProcessor Characteristics: 0x%04x\n",
table->processor_characteristics);
smbios_print_lookup_str(processor_family_strings,
table->processor_family2,
ARRAY_SIZE(processor_family_strings),
"Processor Family 2");
printf("\tCore Count 2: 0x%04x\n", table->core_count2);
printf("\tCore Enabled 2: 0x%04x\n", table->core_enabled2);
printf("\tThread Count 2: 0x%04x\n", table->thread_count2);
printf("\tThread Enabled: 0x%04x\n", table->thread_enabled);
}
static void smbios_print_type7(struct smbios_type7 *table)
{
printf("Cache Information:\n");
smbios_print_str("Socket Designation", table,
table->socket_design);
printf("\tCache Configuration: 0x%04x\n", table->config.data);
printf("\tMaximum Cache Size: 0x%04x\n", table->max_size.data);
printf("\tInstalled Size: 0x%04x\n", table->inst_size.data);
printf("\tSupported SRAM Type: 0x%04x\n", table->supp_sram_type.data);
printf("\tCurrent SRAM Type: 0x%04x\n", table->curr_sram_type.data);
printf("\tCache Speed: 0x%02x\n", table->speed);
smbios_print_lookup_str(err_corr_type_strings,
table->err_corr_type,
ARRAY_SIZE(err_corr_type_strings),
"Error Correction Type");
smbios_print_lookup_str(sys_cache_type_strings,
table->sys_cache_type,
ARRAY_SIZE(sys_cache_type_strings),
"System Cache Type");
smbios_print_lookup_str(associativity_strings,
table->associativity,
ARRAY_SIZE(associativity_strings),
"Associativity");
printf("\tMaximum Cache Size 2: 0x%08x\n", table->max_size2.data);
printf("\tInstalled Cache Size 2: 0x%08x\n", table->inst_size2.data);
}
static void smbios_print_type127(struct smbios_type127 *table)
{
printf("End Of Table\n");
}
static int do_smbios(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
ulong addr;
void *entry;
u32 size;
char version[12];
struct smbios_header *table;
static const char smbios_sig[] = "_SM_";
static const char smbios3_sig[] = "_SM3_";
size_t count = 0;
u32 table_maximum_size;
addr = gd_smbios_start();
if (!addr) {
log_warning("SMBIOS not available\n");
return CMD_RET_FAILURE;
}
entry = map_sysmem(addr, 0);
if (!memcmp(entry, smbios3_sig, sizeof(smbios3_sig) - 1)) {
struct smbios3_entry *entry3 = entry;
table = (void *)(uintptr_t)entry3->struct_table_address;
snprintf(version, sizeof(version), "%d.%d.%d",
entry3->major_ver, entry3->minor_ver, entry3->doc_rev);
table = (void *)(uintptr_t)entry3->struct_table_address;
size = entry3->length;
table_maximum_size = entry3->table_maximum_size;
} else if (!memcmp(entry, smbios_sig, sizeof(smbios_sig) - 1)) {
struct smbios_entry *entry2 = entry;
snprintf(version, sizeof(version), "%d.%d",
entry2->major_ver, entry2->minor_ver);
table = (void *)(uintptr_t)entry2->struct_table_address;
size = entry2->length;
table_maximum_size = entry2->struct_table_length;
} else {
log_err("Unknown SMBIOS anchor format\n");
return CMD_RET_FAILURE;
}
if (table_compute_checksum(entry, size)) {
log_err("Invalid anchor checksum\n");
return CMD_RET_FAILURE;
}
printf("SMBIOS %s present.\n", version);
for (struct smbios_header *pos = table; pos; pos = next_table(pos))
++count;
printf("%zd structures occupying %d bytes\n", count, table_maximum_size);
printf("Table at 0x%llx\n", (unsigned long long)map_to_sysmem(table));
for (struct smbios_header *pos = table; pos; pos = next_table(pos)) {
printf("\nHandle 0x%04x, DMI type %d, %d bytes at 0x%llx\n",
pos->handle, pos->type, pos->length,
(unsigned long long)map_to_sysmem(pos));
switch (pos->type) {
case SMBIOS_BIOS_INFORMATION:
smbios_print_type0((struct smbios_type0 *)pos);
break;
case SMBIOS_SYSTEM_INFORMATION:
smbios_print_type1((struct smbios_type1 *)pos);
break;
case SMBIOS_BOARD_INFORMATION:
smbios_print_type2((struct smbios_type2 *)pos);
break;
case SMBIOS_SYSTEM_ENCLOSURE:
smbios_print_type3((struct smbios_type3 *)pos);
break;
case SMBIOS_PROCESSOR_INFORMATION:
smbios_print_type4((struct smbios_type4 *)pos);
break;
case SMBIOS_CACHE_INFORMATION:
smbios_print_type7((struct smbios_type7 *)pos);
break;
case SMBIOS_END_OF_TABLE:
smbios_print_type127((struct smbios_type127 *)pos);
break;
default:
smbios_print_generic(pos);
break;
}
}
return CMD_RET_SUCCESS;
}
U_BOOT_LONGHELP(smbios, "- display SMBIOS information");
U_BOOT_CMD(smbios, 1, 0, do_smbios, "display SMBIOS information",
smbios_help_text);
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