CPUID_EXTENDED_TOPOLOGY_EBX Union Reference

#include <MdePkg/Include/Register/Intel/Cpuid.h>

Data Fields
struct {
UINT32   LogicalProcessors: 16
UINT32   Reserved: 16
}	Bits
UINT32	Uint32

Detailed Description

CPUID Extended Topology Information EBX for CPUID leaf CPUID_EXTENDED_TOPOLOGY.

Definition at line 1846 of file Cpuid.h.

Field Documentation

struct { ... } CPUID_EXTENDED_TOPOLOGY_EBX::Bits

Individual bit fields

LogicalProcessors

UINT32 CPUID_EXTENDED_TOPOLOGY_EBX::LogicalProcessors

[Bits 15:0] Number of logical processors at this level type. The number reflects configuration as shipped by Intel.

Note

Software must not use EBX[15:0] to enumerate processor topology of the system. This value in this field (EBX[15:0]) is only intended for display/diagnostic purposes. The actual number of logical processors available to BIOS/OS/Applications may be different from the value of EBX[15:0], depending on software and platform hardware configurations.

Definition at line 1862 of file Cpuid.h.

Reserved

UINT32 CPUID_EXTENDED_TOPOLOGY_EBX::Reserved

Definition at line 1863 of file Cpuid.h.

Uint32

UINT32 CPUID_EXTENDED_TOPOLOGY_EBX::Uint32

All bit fields as a 32-bit value

Definition at line 1868 of file Cpuid.h.

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The documentation for this union was generated from the following file:

• MdePkg/Include/Register/Intel/Cpuid.h