190 lines
4.3 KiB
C
190 lines
4.3 KiB
C
/*++
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Copyright (c) 1990 Microsoft Corporation
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Module Name:
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data386.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) 22-Jan-1990
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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 = {0x0};
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MMPTE MmPteGlobal = {0x0}; // Set global bit later if processor supports Global Page
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//
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// Note - MM_PTE_GLOBAL_MASK is or'ed into ValidKernelPte during
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// initialization if the processor supports Global Page. Use
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// ValidKernelPteLocal if you don't want the global bit (ie: for session
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// space).
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//
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MMPTE ValidKernelPte = { MM_PTE_VALID_MASK |
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MM_PTE_WRITE_MASK |
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MM_PTE_DIRTY_MASK |
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MM_PTE_ACCESS_MASK };
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const MMPTE ValidKernelPteLocal = { MM_PTE_VALID_MASK |
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MM_PTE_WRITE_MASK |
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MM_PTE_DIRTY_MASK |
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MM_PTE_ACCESS_MASK };
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const MMPTE ValidUserPte = { MM_PTE_VALID_MASK |
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MM_PTE_WRITE_MASK |
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MM_PTE_OWNER_MASK |
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MM_PTE_DIRTY_MASK |
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MM_PTE_ACCESS_MASK };
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const MMPTE ValidPtePte = { MM_PTE_VALID_MASK |
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MM_PTE_WRITE_MASK |
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MM_PTE_DIRTY_MASK |
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MM_PTE_ACCESS_MASK };
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const MMPTE ValidPdePde = { MM_PTE_VALID_MASK |
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MM_PTE_WRITE_MASK |
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MM_PTE_DIRTY_MASK |
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MM_PTE_ACCESS_MASK };
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MMPTE ValidKernelPde = { MM_PTE_VALID_MASK |
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MM_PTE_WRITE_MASK |
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MM_PTE_DIRTY_MASK |
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MM_PTE_ACCESS_MASK };
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const MMPTE ValidKernelPdeLocal = { MM_PTE_VALID_MASK |
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MM_PTE_WRITE_MASK |
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MM_PTE_DIRTY_MASK |
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MM_PTE_ACCESS_MASK };
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// NOTE - MM_PTE_GLOBAL_MASK or'ed in later if processor supports Global Page
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MMPTE DemandZeroPde = { MM_READWRITE << 5 };
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const MMPTE DemandZeroPte = { MM_READWRITE << 5 };
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const MMPTE TransitionPde = { MM_PTE_WRITE_MASK |
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MM_PTE_OWNER_MASK |
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MM_PTE_TRANSITION_MASK |
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MM_READWRITE << 5 };
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#if !defined (_X86PAE_)
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MMPTE PrototypePte = { 0xFFFFF000 |
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MM_PTE_PROTOTYPE_MASK |
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MM_READWRITE << 5 };
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#else
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MMPTE PrototypePte = { (MI_PTE_LOOKUP_NEEDED << 32) |
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MM_PTE_PROTOTYPE_MASK |
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MM_READWRITE << 5 };
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#endif
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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 << 5};
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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_DEFAULT_PAGED_POOL_START;
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PVOID MmPagedPoolEnd;
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PMMWSL MmWorkingSetList;
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ULONG MiMaximumWorkingSet =
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((ULONG)((ULONG)2*1024*1024*1024 - 64*1024*1024) >> PAGE_SHIFT); //2Gb-64Mb
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//
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// Color tables for free and zeroed pages.
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//
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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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//
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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 pages for the debugger.
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//
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PMMPTE MmDebugPte = (MiGetPteAddress(MM_DEBUG_VA));
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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(MM_CRASH_DUMP_VA));
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//
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// Number of additional system PTEs present.
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//
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ULONG MiNumberOfExtraSystemPdes;
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ULONG MiMaximumSystemExtraSystemPdes;
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ULONG_PTR MiUseMaximumSystemSpace;
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ULONG_PTR MiUseMaximumSystemSpaceEnd;
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//
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// Size of extended system cache.
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//
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ULONG MiMaximumSystemCacheSizeExtra;
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PVOID MiSystemCacheStartExtra;
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PVOID MiSystemCacheEndExtra;
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ULONG MiExtraResourceStart;
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ULONG MiExtraResourceEnd;
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ULONG_PTR MmBootImageSize;
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