diff options
Diffstat (limited to 'src/arch/x86')
| -rw-r--r-- | src/arch/x86/smbios.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/arch/x86/smbios.c b/src/arch/x86/smbios.c index dc676cf141..da77284d37 100644 --- a/src/arch/x86/smbios.c +++ b/src/arch/x86/smbios.c @@ -493,6 +493,12 @@ 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 size_t get_number_of_caches(struct cpuid_result res_deterministic_cache) { size_t max_logical_cpus_sharing_cache = 0; @@ -595,6 +601,7 @@ static int smbios_write_type3(unsigned long *current, int handle) static int smbios_write_type4(unsigned long *current, int handle) { + unsigned int cpu_voltage; struct cpuid_result res; struct smbios_type4 *t = (struct smbios_type4 *)*current; int len = sizeof(struct smbios_type4); @@ -686,6 +693,9 @@ static int smbios_write_type4(unsigned long *current, int handle) } } t->processor_characteristics = characteristics | smbios_processor_characteristics(); + cpu_voltage = smbios_cpu_get_voltage(); + if (cpu_voltage > 0) + t->voltage = 0x80 | cpu_voltage; *current += len; return len; |