MSR_IA32_MTRRCAP_REGISTER Union Reference

Data Fields
struct {
UINT32   VCNT:8
UINT32   FIX:1
UINT32   Reserved1:1
UINT32   WC:1
UINT32   SMRR:1
UINT32   Reserved2:20
UINT32   Reserved3:32
}	Bits
UINT32	Uint32
UINT64	Uint64

Detailed Description

MSR information returned for MSR index MSR_IA32_MTRRCAP

Field Documentation

struct { ... } MSR_IA32_MTRRCAP_REGISTER::Bits

Individual bit fields

UINT32 MSR_IA32_MTRRCAP_REGISTER::FIX

[Bit 8] Fixed range MTRRs are supported when set.

UINT32 MSR_IA32_MTRRCAP_REGISTER::Reserved1

UINT32 MSR_IA32_MTRRCAP_REGISTER::Reserved2

UINT32 MSR_IA32_MTRRCAP_REGISTER::Reserved3

UINT32 MSR_IA32_MTRRCAP_REGISTER::SMRR

[Bit 11] SMRR Supported when set.

UINT32 MSR_IA32_MTRRCAP_REGISTER::Uint32

All bit fields as a 32-bit value

UINT64 MSR_IA32_MTRRCAP_REGISTER::Uint64

All bit fields as a 64-bit value

UINT32 MSR_IA32_MTRRCAP_REGISTER::VCNT

[Bits 7:0] VCNT: The number of variable memory type ranges in the processor.

UINT32 MSR_IA32_MTRRCAP_REGISTER::WC

[Bit 10] WC Supported when set.