#include <MdePkg/Include/Register/Intel/Msr/SandyBridgeMsr.h>

Data Fields
struct {
UINT32 Limit: 3

UINT32 Reserved1: 7

UINT32 IO_MWAIT: 1

UINT32 Reserved2: 4

UINT32 CFGLock: 1

UINT32 Reserved3: 9

UINT32 C3AutoDemotion: 1

UINT32 C1AutoDemotion: 1

UINT32 C3Undemotion: 1

UINT32 C1Undemotion: 1

UINT32 Reserved4: 3

UINT32 Reserved5: 32

}	Bits

UINT32	Uint32

UINT64	Uint64

Detailed Description

MSR information returned for MSR index MSR_SANDY_BRIDGE_PKG_CST_CONFIG_CONTROL

Definition at line 176 of file SandyBridgeMsr.h.

Field Documentation

◆

struct { ... } MSR_SANDY_BRIDGE_PKG_CST_CONFIG_CONTROL_REGISTER::Bits

Individual bit fields

◆ C1AutoDemotion

UINT32 MSR_SANDY_BRIDGE_PKG_CST_CONFIG_CONTROL_REGISTER::C1AutoDemotion

[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.

Definition at line 216 of file SandyBridgeMsr.h.

◆ C1Undemotion

UINT32 MSR_SANDY_BRIDGE_PKG_CST_CONFIG_CONTROL_REGISTER::C1Undemotion

[Bit 28] Enable C1 undemotion (R/W) When set, enables undemotion from demoted C1.

Definition at line 226 of file SandyBridgeMsr.h.

◆ C3AutoDemotion

UINT32 MSR_SANDY_BRIDGE_PKG_CST_CONFIG_CONTROL_REGISTER::C3AutoDemotion

[Bit 25] C3 state auto demotion enable (R/W) When set, the processor will conditionally demote C6/C7 requests to C3 based on uncore auto-demote information.

Definition at line 210 of file SandyBridgeMsr.h.

◆ C3Undemotion

UINT32 MSR_SANDY_BRIDGE_PKG_CST_CONFIG_CONTROL_REGISTER::C3Undemotion

[Bit 27] Enable C3 undemotion (R/W) When set, enables undemotion from demoted C3.

Definition at line 221 of file SandyBridgeMsr.h.

◆ CFGLock

UINT32 MSR_SANDY_BRIDGE_PKG_CST_CONFIG_CONTROL_REGISTER::CFGLock

[Bit 15] CFG Lock (R/WO) When set, lock bits 15:0 of this register until next reset.

Definition at line 203 of file SandyBridgeMsr.h.

◆ IO_MWAIT

UINT32 MSR_SANDY_BRIDGE_PKG_CST_CONFIG_CONTROL_REGISTER::IO_MWAIT

[Bit 10] I/O MWAIT Redirection Enable (R/W) When set, will map IO_read instructions sent to IO register specified by MSR_PMG_IO_CAPTURE_BASE to MWAIT instructions.

Definition at line 197 of file SandyBridgeMsr.h.

◆ Limit

UINT32 MSR_SANDY_BRIDGE_PKG_CST_CONFIG_CONTROL_REGISTER::Limit

[Bits 2:0] Package C-State Limit (R/W) Specifies the lowest processor-specific C-state code name (consuming the least power). for the package. The default is set as factory-configured package C-state limit. The following C-state code name encodings are supported: 000b: C0/C1 (no package C-sate support) 001b: C2 010b: C6 no retention 011b: C6 retention 100b: C7 101b: C7s 111: No package C-state limit. Note: This field cannot be used to limit package C-state to C3.

Definition at line 190 of file SandyBridgeMsr.h.

◆ Reserved1

UINT32 MSR_SANDY_BRIDGE_PKG_CST_CONFIG_CONTROL_REGISTER::Reserved1

Definition at line 191 of file SandyBridgeMsr.h.

◆ Reserved2

UINT32 MSR_SANDY_BRIDGE_PKG_CST_CONFIG_CONTROL_REGISTER::Reserved2

Definition at line 198 of file SandyBridgeMsr.h.

◆ Reserved3

UINT32 MSR_SANDY_BRIDGE_PKG_CST_CONFIG_CONTROL_REGISTER::Reserved3

Definition at line 204 of file SandyBridgeMsr.h.

◆ Reserved4

UINT32 MSR_SANDY_BRIDGE_PKG_CST_CONFIG_CONTROL_REGISTER::Reserved4

Definition at line 227 of file SandyBridgeMsr.h.

◆ Reserved5

UINT32 MSR_SANDY_BRIDGE_PKG_CST_CONFIG_CONTROL_REGISTER::Reserved5

Definition at line 228 of file SandyBridgeMsr.h.

◆ Uint32

UINT32 MSR_SANDY_BRIDGE_PKG_CST_CONFIG_CONTROL_REGISTER::Uint32

All bit fields as a 32-bit value

Definition at line 233 of file SandyBridgeMsr.h.

◆ Uint64

UINT64 MSR_SANDY_BRIDGE_PKG_CST_CONFIG_CONTROL_REGISTER::Uint64

All bit fields as a 64-bit value

Definition at line 237 of file SandyBridgeMsr.h.

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

MdePkg/Include/Register/Intel/Msr/SandyBridgeMsr.h

Data Fields