137 lines
2.7 KiB
C
137 lines
2.7 KiB
C
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/*++
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Copyright (c) 1990 Microsoft Corporation
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Copyright (c) 1993 IBM Corporation
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Module Name:
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datappc.c
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Abstract:
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This module contains the private hardware specific global storage for
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the memory management subsystem.
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Author:
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Lou Perazzoli (loup) 27-Mar-1990
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Modified for PowerPC by Mark Mergen (mergen@watson.ibm.com) 6-Oct-93
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Revision History:
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--*/
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#include "mi.h"
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//
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// A zero Pte.
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//
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MMPTE ZeroPte = { 0 };
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//
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// A kernel zero PTE.
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//
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MMPTE ZeroKernelPte = { 0 };
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MMPTE ValidKernelPte = { MM_PTE_VALID_MASK |
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MM_PTE_WRITE_MASK };
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MMPTE ValidUserPte = { MM_PTE_VALID_MASK |
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MM_PTE_WRITE_MASK };
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MMPTE ValidPtePte = { MM_PTE_VALID_MASK |
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MM_PTE_WRITE_MASK };
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MMPTE ValidPdePde = { MM_PTE_VALID_MASK |
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MM_PTE_WRITE_MASK };
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MMPTE ValidKernelPde = { MM_PTE_VALID_MASK |
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MM_PTE_WRITE_MASK };
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MMPTE DemandZeroPde = { MM_READWRITE << 3 };
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MMPTE DemandZeroPte = { MM_READWRITE << 3 };
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MMPTE TransitionPde = { MM_PTE_TRANSITION_MASK | (MM_READWRITE << 3) };
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MMPTE PrototypePte = { 0xFFFFF000 | (MM_READWRITE << 3) | MM_PTE_PROTOTYPE_MASK };
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//
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// PTE which generates an access violation when referenced.
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//
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MMPTE NoAccessPte = {MM_NOACCESS << 3};
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//
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// Pool start and end.
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//
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PVOID MmNonPagedPoolStart;
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PVOID MmNonPagedPoolEnd = ((PVOID)MM_NONPAGED_POOL_END);
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PVOID MmPagedPoolStart = ((PVOID)MM_PAGED_POOL_START);
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PVOID MmPagedPoolEnd;
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#if MM_MAXIMUM_NUMBER_OF_COLORS > 1
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MMPFNLIST MmFreePagesByPrimaryColor[2][MM_MAXIMUM_NUMBER_OF_COLORS];
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MMPFNLIST MmStandbyPageListByColor[MM_MAXIMUM_NUMBER_OF_COLORS] = {
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0, StandbyPageList, MM_EMPTY_LIST, MM_EMPTY_LIST,
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0, StandbyPageList, MM_EMPTY_LIST, MM_EMPTY_LIST
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};
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#endif
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PMMCOLOR_TABLES MmFreePagesByColor[2];
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//
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// Color tables for modified pages destined for the paging file.
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//
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MMPFNLIST MmModifiedPageListByColor[MM_MAXIMUM_NUMBER_OF_COLORS] = {
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0, ModifiedPageList, MM_EMPTY_LIST, MM_EMPTY_LIST,
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0, ModifiedPageList, MM_EMPTY_LIST, MM_EMPTY_LIST};
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ULONG MmSecondaryColorMask;
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//
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// Count of the number of modified pages destined for the paging file.
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//
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ULONG MmTotalPagesForPagingFile = 0;
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//
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// PTE reserved for mapping physical data for debugger.
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// Use 1 page from last 4MB of virtual address space
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// reserved for the HAL.
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//
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PMMPTE MmDebugPte = (MiGetPteAddress((PVOID)MM_HAL_RESERVED));
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//
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// 16 PTEs reserved for mapping MDLs (64k max).
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//
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PMMPTE MmCrashDumpPte = (MiGetPteAddress((PVOID)MM_HAL_RESERVED));
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