MSR_XEON_PHI_PKG_CST_CONFIG_CONTROL_REGISTER Union Reference

Data Fields
struct {
UINT32   Limit:3
UINT32   Reserved1:7
UINT32   IO_MWAIT:1
UINT32   Reserved2:4
UINT32   CFGLock:1
UINT32   Reserved5:10
UINT32   C1StateAutoDemotionEnable:1
UINT32   Reserved6:1
UINT32   C1StateAutoUndemotionEnable:1
UINT32   PKGC_StateAutoDemotionEnable:1
UINT32   Reserved7:2
UINT32   Reserved4:32
}	Bits
UINT32	Uint32
UINT64	Uint64

Detailed Description

MSR information returned for MSR index MSR_XEON_PHI_PKG_CST_CONFIG_CONTROL

Field Documentation

struct { ... } MSR_XEON_PHI_PKG_CST_CONFIG_CONTROL_REGISTER::Bits

Individual bit fields

UINT32 MSR_XEON_PHI_PKG_CST_CONFIG_CONTROL_REGISTER::C1StateAutoDemotionEnable

[Bit 26] C1 State Auto Demotion Enable (R/W) When set, the processor will conditionally demote C3/C6/C7 requests to C1 based on uncore auto-demote information.

UINT32 MSR_XEON_PHI_PKG_CST_CONFIG_CONTROL_REGISTER::C1StateAutoUndemotionEnable

[Bit 28] C1 State Auto Undemotion Enable (R/W) When set, enables Undemotion from Demoted C1.

UINT32 MSR_XEON_PHI_PKG_CST_CONFIG_CONTROL_REGISTER::CFGLock

[Bit 15] CFG Lock (R/WO).

UINT32 MSR_XEON_PHI_PKG_CST_CONFIG_CONTROL_REGISTER::IO_MWAIT

[Bit 10] I/O MWAIT Redirection Enable (R/W).

UINT32 MSR_XEON_PHI_PKG_CST_CONFIG_CONTROL_REGISTER::Limit

[Bits 2:0] Package C-State Limit (R/W) The following C-state code name encodings are supported: 000b: C0/C1 001b: C2 010b: C6 No Retention 011b: C6 Retention 111b: No limit.

UINT32 MSR_XEON_PHI_PKG_CST_CONFIG_CONTROL_REGISTER::PKGC_StateAutoDemotionEnable

[Bit 29] PKG C-State Auto Demotion Enable (R/W) When set, enables Package C state demotion.

UINT32 MSR_XEON_PHI_PKG_CST_CONFIG_CONTROL_REGISTER::Reserved1

UINT32 MSR_XEON_PHI_PKG_CST_CONFIG_CONTROL_REGISTER::Reserved2

UINT32 MSR_XEON_PHI_PKG_CST_CONFIG_CONTROL_REGISTER::Reserved4

UINT32 MSR_XEON_PHI_PKG_CST_CONFIG_CONTROL_REGISTER::Reserved5

UINT32 MSR_XEON_PHI_PKG_CST_CONFIG_CONTROL_REGISTER::Reserved6

UINT32 MSR_XEON_PHI_PKG_CST_CONFIG_CONTROL_REGISTER::Reserved7

UINT32 MSR_XEON_PHI_PKG_CST_CONFIG_CONTROL_REGISTER::Uint32

All bit fields as a 32-bit value

UINT64 MSR_XEON_PHI_PKG_CST_CONFIG_CONTROL_REGISTER::Uint64

All bit fields as a 64-bit value