dmi_processor_features
Synopsis
#include <opendmi/entity/processor.h>
typedef union dmi_processor_features {
uint16_t __value;
struct {
uint16_t __reserved : 1;
uint16_t is_unknown : 1;
uint16_t capable_64bit : 1;
uint16_t multicore : 1;
uint16_t hardware_thread : 1;
uint16_t execute_protection : 1;
uint16_t enhanced_virtualization : 1;
uint16_t power_perf_control : 1;
uint16_t capable_128bit : 1;
uint16_t arm64_soc_id : 1;
uint16_t __reserved2 : 6;
};
} dmi_processor_features_t;Description
The dmi_processor_features_t union holds the characteristics of a
processor, as the processor information structure (type 4) of SMBIOS gives
them since SMBIOS 2.5. It is the type of the features field of
dmi_processor_t.
The bits tell what the processor is capable of, not whether the capabilities are currently enabled, nor how many cores or threads are in use.
Fields
__value-
All the bits as one word, as stored.
__reserved-
Reserved bit 0.
is_unknown-
The characteristics are unknown.
capable_64bit-
The processor can process 64-bit data, whether this mode is enabled or not.
multicore-
The processor has more than one core.
hardware_thread-
The processor runs more than one hardware thread per core.
execute_protection-
The processor can mark memory regions as not executable, for example with the NX or XD feature.
enhanced_virtualization-
The processor has enhanced virtualization instructions.
power_perf_control-
The processor can save power depending on the load.
capable_128bit-
The processor can process 128-bit data.
arm64_soc_id-
The processor returns a SoC identifier through the SMCCC_ARCH_SOC_ID call, and the processor identifier holds it; see
dmi_processor_soc_id. __reserved2-
Reserved bits 10 to 15.