108 lines
2.5 KiB
C
108 lines
2.5 KiB
C
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/*++
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Copyright (c) 1990 Microsoft Corporation
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Copyright (c) 1992 Digital Equipment Corporation
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Module Name:
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dataalpha.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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Joe Notarangelo 23-April-1992
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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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const MMPTE ZeroPte = {0};
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//
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// A kernel zero PTE.
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//
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const MMPTE ZeroKernelPte = {0};
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MMPTE ValidKernelPte =
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{(MM_PTE_VALID_MASK | MM_PTE_WRITE_MASK | MM_PTE_GLOBAL_MASK) ^ MM_PTE_DIRTY_MASK};
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const MMPTE ValidKernelPteLocal = {(MM_PTE_VALID_MASK | MM_PTE_WRITE_MASK) ^ MM_PTE_DIRTY_MASK};
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const MMPTE ValidUserPte =
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{(MM_PTE_VALID_MASK | MM_PTE_WRITE_MASK | MM_PTE_OWNER_MASK) ^ MM_PTE_DIRTY_MASK};
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const MMPTE ValidPtePte = {(MM_PTE_VALID_MASK | MM_PTE_WRITE_MASK) ^ MM_PTE_DIRTY_MASK};
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const MMPTE ValidPdePde = {(MM_PTE_VALID_MASK | MM_PTE_WRITE_MASK) ^ MM_PTE_DIRTY_MASK};
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MMPTE ValidKernelPde =
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{(MM_PTE_VALID_MASK | MM_PTE_WRITE_MASK | MM_PTE_GLOBAL_MASK) ^ MM_PTE_DIRTY_MASK};
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const MMPTE ValidKernelPdeLocal = {(MM_PTE_VALID_MASK | MM_PTE_WRITE_MASK) ^ MM_PTE_DIRTY_MASK};
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MMPTE DemandZeroPde = {MM_READWRITE << MM_PROTECT_FIELD_SHIFT};
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const MMPTE DemandZeroPte = {MM_READWRITE << MM_PROTECT_FIELD_SHIFT};
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const MMPTE TransitionPde =
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{MM_PTE_TRANSITION_MASK | (MM_READWRITE << MM_PROTECT_FIELD_SHIFT)};
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MMPTE PrototypePte = {(MI_PTE_LOOKUP_NEEDED << 32) | (MM_READWRITE << MM_PROTECT_FIELD_SHIFT) | 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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const MMPTE NoAccessPte = {MM_NOACCESS << MM_PROTECT_FIELD_SHIFT};
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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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const PVOID MmPagedPoolStart = (PVOID)(MM_PAGED_POOL_START);
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PVOID MmPagedPoolEnd;
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//
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// PTE reserved for mapping physical data for debugger.
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//
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PMMPTE MmDebugPte = MiGetPteAddress(0xfffdf000);
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//
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// 16 PTEs reserved for mapping MDLs (128k max).
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//
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PMMPTE MmCrashDumpPte = (MiGetPteAddress(MM_NONPAGED_POOL_END));
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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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#endif
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PMMCOLOR_TABLES MmFreePagesByColor[2];
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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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//
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// Color tables for modified pages destined for the paging file.
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//
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PFN_NUMBER MmTotalPagesForPagingFile;
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