diff options
Diffstat (limited to 'src/arch/x86/smbios.c')
| -rw-r--r-- | src/arch/x86/smbios.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/arch/x86/smbios.c b/src/arch/x86/smbios.c index 4eb8726137..5edf3c6e0c 100644 --- a/src/arch/x86/smbios.c +++ b/src/arch/x86/smbios.c @@ -522,6 +522,16 @@ void __weak smbios_system_set_uuid(u8 *uuid) /* leave all zero */ } +unsigned int __weak smbios_cpu_get_max_speed_mhz(void) +{ + return 0; /* Unknown */ +} + +unsigned int __weak smbios_cpu_get_current_speed_mhz(void) +{ + return 0; /* Unknown */ +} + const char *__weak smbios_system_sku(void) { return ""; @@ -648,11 +658,20 @@ static int smbios_write_type4(unsigned long *current, int handle) t->processor_family = (res.eax > 0) ? 0x0c : 0x6; t->processor_type = 3; /* System Processor */ t->core_count = (res.ebx >> 16) & 0xff; + /* Assume we enable all the cores always, capped only by MAX_CPUS */ + t->core_enabled = MAX(t->core_count, CONFIG_MAX_CPUS); t->l1_cache_handle = 0xffff; t->l2_cache_handle = 0xffff; t->l3_cache_handle = 0xffff; t->processor_upgrade = get_socket_type(); len = t->length + smbios_string_table_len(t->eos); + if (cpu_have_cpuid() && cpuid_get_max_func() >= 0x16) { + t->max_speed = cpuid_ebx(0x16); + t->current_speed = cpuid_eax(0x16); /* base frequency */ + } else { + t->max_speed = smbios_cpu_get_max_speed_mhz(); + t->current_speed = smbios_cpu_get_current_speed_mhz(); + } *current += len; return len; } |