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-rw-r--r--src/arch/x86/smbios.c19
-rw-r--r--src/include/smbios.h3
2 files changed, 22 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;
}
diff --git a/src/include/smbios.h b/src/include/smbios.h
index eb947dc049..ef1c7de72c 100644
--- a/src/include/smbios.h
+++ b/src/include/smbios.h
@@ -53,6 +53,9 @@ const char *smbios_system_version(void);
void smbios_system_set_uuid(u8 *uuid);
const char *smbios_system_sku(void);
+unsigned int smbios_cpu_get_max_speed_mhz(void);
+unsigned int smbios_cpu_get_current_speed_mhz(void);
+
const char *smbios_mainboard_manufacturer(void);
const char *smbios_mainboard_product_name(void);
const char *smbios_mainboard_serial_number(void);