137 lines
3 KiB
C
137 lines
3 KiB
C
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/*++
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Copyright (c) 1991 Microsoft Corporation
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Module Name:
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mtrr.h
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Abstract:
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This module contains the i386 specific mtrr register
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hardware definitions.
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Author:
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Ken Reneris (kenr) 11-Oct-95
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Environment:
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Kernel mode only.
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Revision History:
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--*/
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//
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// MTRR MSR architecture definitions
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//
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#define MTRR_MSR_CAPABILITIES 0x0fe
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#define MTRR_MSR_DEFAULT 0x2ff
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#define MTRR_MSR_VARIABLE_BASE 0x200
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#define MTRR_MSR_VARIABLE_MASK (MTRR_MSR_VARIABLE_BASE+1)
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#define MTRR_PAGE_SIZE 4096
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#define MTRR_PAGE_MASK (~(MTRR_PAGE_SIZE-1))
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//
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// Memory range types
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//
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#define MTRR_TYPE_UC 0
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#define MTRR_TYPE_USWC 1
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#define MTRR_TYPE_WT 4
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#define MTRR_TYPE_WP 5
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#define MTRR_TYPE_WB 6
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#define MTRR_TYPE_MAX 7
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//
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// MTRR specific registers - capability register, default
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// register, and variable mask and base register
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//
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#include "pshpack1.h"
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typedef struct _MTRR_CAPABILITIES {
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union {
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struct {
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ULONG VarCnt:8;
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ULONG FixSupported:1;
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ULONG Reserved_0:1;
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ULONG UswcSupported:1;
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ULONG Reserved_1:21;
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ULONG Reserved_2;
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} hw;
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ULONGLONG QuadPart;
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} u;
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} MTRR_CAPABILITIES, *PMTRR_CAPABILITIES;
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typedef struct _MTRR_DEFAULT {
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union {
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struct {
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ULONG Type:8;
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ULONG Reserved_0:2;
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ULONG FixedEnabled:1;
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ULONG MtrrEnabled:1;
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ULONG Reserved_1:20;
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ULONG Reserved_2;
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} hw;
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ULONGLONG QuadPart;
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} u;
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} MTRR_DEFAULT, *PMTRR_DEFAULT;
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typedef struct _MTRR_VARIABLE_BASE {
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union {
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struct {
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ULONG Type:8;
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ULONG Reserved_0:4;
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ULONG PhysBase_1:20;
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ULONG PhysBase_2:4;
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ULONG Reserved_1:28;
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} hw;
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ULONGLONG QuadPart;
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} u;
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} MTRR_VARIABLE_BASE, *PMTRR_VARIABLE_BASE;
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#define MTRR_MASK_BASE 0x0000000ffffff000
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typedef struct _MTRR_VARIABLE_MASK {
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union {
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struct {
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ULONG Reserved_0:11;
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ULONG Valid:1;
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ULONG PhysMask_1:20;
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ULONG PhysMask_2:4;
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ULONG Reserved_1:28;
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} hw;
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ULONGLONG QuadPart;
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} u;
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} MTRR_VARIABLE_MASK, *PMTRR_VARIABLE_MASK;
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#define MTRR_MASK_MASK 0x0000000ffffff000
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//
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// Masks/constants to check for non-contiguous masks,
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// mask out reserved bits of variable MTRR's,
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// and construct MTRR variable register masks
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//
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#define MASK_OVERFLOW_MASK (~0x1000000000)
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#define MTRR_RESVBIT_MASK 0xfffffffff
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#define MTRR_MAX_RANGE_SHIFT 36
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#include "poppack.h"
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typedef struct _PROCESSOR_LOCKSTEP {
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ULONG Processor;
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volatile ULONG TargetCount;
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volatile ULONG *TargetPhase;
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} PROCESSOR_LOCKSTEP, *PPROCESSOR_LOCKSTEP;
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VOID
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KiLockStepExecution(
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IN PPROCESSOR_LOCKSTEP Context
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);
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