dmi_processor_id_format

Synopsis

#include <opendmi/entity/processor.h>

typedef enum dmi_processor_id_format {
    DMI_PROCESSOR_ID_FORMAT_RAW    = 0,
    DMI_PROCESSOR_ID_FORMAT_X86    = 1,
    DMI_PROCESSOR_ID_FORMAT_MIDR   = 2,
    DMI_PROCESSOR_ID_FORMAT_SOC_ID = 3
} dmi_processor_id_format_t;

Description

The dmi_processor_id_format_t enumeration tells how the processor identifier of a processor information structure has been decoded, and is the type of the id_format field of dmi_processor_t. It selects which of the x86_id, arm_id and soc_id fields of the structure holds the decoded identifier.

The format is chosen from the processor family, and, for the families which do not tell the architecture (other, unknown, and the Apple M1 and M2 families, which older specifications gave to Cyrix x86 processors), from the vendor and version strings as well.

Values

DMI_PROCESSOR_ID_FORMAT_RAW

Architecture not recognized: the identifier is only available as stored, in the id field.

DMI_PROCESSOR_ID_FORMAT_X86

x86 processor: signature and feature flags returned by CPUID leaf 1, decoded into the x86_id field.

DMI_PROCESSOR_ID_FORMAT_MIDR

Arm processor: Main ID Register (MIDR or MIDR_EL1), decoded into the arm_id field.

DMI_PROCESSOR_ID_FORMAT_SOC_ID

Arm64 processor supporting the SMCCC_ARCH_SOC_ID call: SoC identifier and revision, decoded into the soc_id field.

See also

dmi_processor, dmi_processor_x86_id, dmi_processor_arm_id, dmi_processor_soc_id

Standards

DMTF SMBIOS Specification (DSP0134), version 2.0 or newer.