CPUID_INTEL_SGX_CAPABILITIES_RESOURCES_SUB_LEAF_ECX Union Reference

Data Fields
struct {
UINT32   EpcSection:4
UINT32   Reserved:8
UINT32   LowSizeOfEpcSection:20
}	Bits
UINT32	Uint32

Detailed Description

Sub-Leaf Index 2 or Higher Enumeration of Intel SGX Resources ECX for CPUID leaf CPUID_INTEL_SGX, sub-leaf CPUID_INTEL_SGX_CAPABILITIES_RESOURCES_SUB_LEAF.

Field Documentation

struct { ... } CPUID_INTEL_SGX_CAPABILITIES_RESOURCES_SUB_LEAF_ECX::Bits

Individual bit fields

UINT32 CPUID_INTEL_SGX_CAPABILITIES_RESOURCES_SUB_LEAF_ECX::EpcSection

[Bit 3:0] The EPC section encoding. 0000b: Not valid. 0001b: The EPC section is confidentiality, integrity and replay protected. All other encoding are reserved.

UINT32 CPUID_INTEL_SGX_CAPABILITIES_RESOURCES_SUB_LEAF_ECX::LowSizeOfEpcSection

[Bit 31:12] If EAX[3:0] = 0001b, these are bits 31:12 of the size of the corresponding EPC section within the Processor Reserved Memory.

UINT32 CPUID_INTEL_SGX_CAPABILITIES_RESOURCES_SUB_LEAF_ECX::Reserved

UINT32 CPUID_INTEL_SGX_CAPABILITIES_RESOURCES_SUB_LEAF_ECX::Uint32

All bit fields as a 32-bit value