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![Jérôme Gardou](/assets/img/avatar_default.png)
- Do not lock the section segment when we are serving a fault for a process private page. - Do not keep the process address space lock while writing to pagefile. - Do not wait for an event that might never be set.
355 lines
9.5 KiB
C
355 lines
9.5 KiB
C
#pragma once
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#include <internal/arch/mm.h>
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/* TYPES *********************************************************************/
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#define MM_SEGMENT_FINALIZE (0x40000000)
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#define MIN(x,y) (((x)<(y))?(x):(y))
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#define MAX(x,y) (((x)>(y))?(x):(y))
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/* Determine what's needed to make paged pool fit in this category.
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* it seems that something more is required to satisfy arm3. */
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#define BALANCER_CAN_EVICT(Consumer) \
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(((Consumer) == MC_USER) || \
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((Consumer) == MC_CACHE))
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#define SEC_CACHE (0x20000000)
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/* We store 8 bits of location with a page association */
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#define ENTRIES_PER_ELEMENT 256
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extern KEVENT MmWaitPageEvent;
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typedef struct _CACHE_SECTION_PAGE_TABLE
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{
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LARGE_INTEGER FileOffset;
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PMM_SECTION_SEGMENT Segment;
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ULONG Refcount;
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ULONG_PTR PageEntries[ENTRIES_PER_ELEMENT];
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} CACHE_SECTION_PAGE_TABLE, *PCACHE_SECTION_PAGE_TABLE;
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struct _MM_REQUIRED_RESOURCES;
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typedef NTSTATUS (NTAPI * AcquireResource)(
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PMMSUPPORT AddressSpace,
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struct _MEMORY_AREA *MemoryArea,
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struct _MM_REQUIRED_RESOURCES *Required);
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typedef NTSTATUS (NTAPI * NotPresentFaultHandler)(
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PMMSUPPORT AddressSpace,
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struct _MEMORY_AREA *MemoryArea,
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PVOID Address,
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BOOLEAN Locked,
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struct _MM_REQUIRED_RESOURCES *Required);
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typedef NTSTATUS (NTAPI * FaultHandler)(
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PMMSUPPORT AddressSpace,
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struct _MEMORY_AREA *MemoryArea,
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PVOID Address,
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struct _MM_REQUIRED_RESOURCES *Required);
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typedef struct _MM_REQUIRED_RESOURCES
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{
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ULONG Consumer;
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ULONG Amount;
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ULONG Offset;
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ULONG State;
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PVOID Context;
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LARGE_INTEGER FileOffset;
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AcquireResource DoAcquisition;
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PFN_NUMBER Page[2];
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PVOID Buffer[2];
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SWAPENTRY SwapEntry;
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const char *File;
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int Line;
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} MM_REQUIRED_RESOURCES, *PMM_REQUIRED_RESOURCES;
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NTSTATUS
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NTAPI
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MmCreateCacheSection(PSECTION *SectionObject,
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ACCESS_MASK DesiredAccess,
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POBJECT_ATTRIBUTES ObjectAttributes,
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PLARGE_INTEGER UMaximumSize,
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ULONG SectionPageProtection,
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ULONG AllocationAttributes,
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PFILE_OBJECT FileObject);
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PFN_NUMBER
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NTAPI
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MmWithdrawSectionPage(PMM_SECTION_SEGMENT Segment,
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PLARGE_INTEGER FileOffset,
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BOOLEAN *Dirty);
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NTSTATUS
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NTAPI
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MmFinalizeSectionPageOut(PMM_SECTION_SEGMENT Segment,
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PLARGE_INTEGER FileOffset,
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PFN_NUMBER Page,
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BOOLEAN Dirty);
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/* sptab.c *******************************************************************/
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VOID
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NTAPI
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MiInitializeSectionPageTable(PMM_SECTION_SEGMENT Segment);
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typedef VOID (NTAPI *FREE_SECTION_PAGE_FUN)(
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PMM_SECTION_SEGMENT Segment,
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PLARGE_INTEGER Offset);
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VOID
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NTAPI
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MmFreePageTablesSectionSegment(PMM_SECTION_SEGMENT Segment,
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FREE_SECTION_PAGE_FUN FreePage);
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NTSTATUS
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NTAPI
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MmSetSectionAssociation(PFN_NUMBER Page,
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PMM_SECTION_SEGMENT Segment,
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PLARGE_INTEGER Offset);
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VOID
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NTAPI
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MmDeleteSectionAssociation(PFN_NUMBER Page);
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NTSTATUS
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NTAPI
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MmpPageOutPhysicalAddress(PFN_NUMBER Page);
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/* io.c **********************************************************************/
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NTSTATUS
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MmspWaitForFileLock(PFILE_OBJECT File);
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NTSTATUS
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NTAPI
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MiSimpleRead(PFILE_OBJECT FileObject,
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PLARGE_INTEGER FileOffset,
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PVOID Buffer,
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ULONG Length,
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BOOLEAN Paging,
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PIO_STATUS_BLOCK ReadStatus);
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NTSTATUS
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NTAPI
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_MiSimpleWrite(PFILE_OBJECT FileObject,
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PLARGE_INTEGER FileOffset,
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PVOID Buffer,
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ULONG Length,
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PIO_STATUS_BLOCK ReadStatus,
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const char *file,
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int line);
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#define MiSimpleWrite(F,O,B,L,R) _MiSimpleWrite(F,O,B,L,R,__FILE__,__LINE__)
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NTSTATUS
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NTAPI
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_MiWriteBackPage(PFILE_OBJECT FileObject,
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PLARGE_INTEGER Offset,
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ULONG Length,
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PFN_NUMBER Page,
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const char *File,
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int Line);
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#define MiWriteBackPage(F,O,L,P) _MiWriteBackPage(F,O,L,P,__FILE__,__LINE__)
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/* section.c *****************************************************************/
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NTSTATUS
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NTAPI
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MmAccessFaultCacheSection(KPROCESSOR_MODE Mode,
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ULONG_PTR Address,
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BOOLEAN FromMdl);
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NTSTATUS
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NTAPI
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MiReadFilePage(PMMSUPPORT AddressSpace,
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PMEMORY_AREA MemoryArea,
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PMM_REQUIRED_RESOURCES RequiredResources);
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NTSTATUS
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NTAPI
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MiGetOnePage(PMMSUPPORT AddressSpace,
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PMEMORY_AREA MemoryArea,
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PMM_REQUIRED_RESOURCES RequiredResources);
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NTSTATUS
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NTAPI
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MiSwapInPage(PMMSUPPORT AddressSpace,
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PMEMORY_AREA MemoryArea,
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PMM_REQUIRED_RESOURCES RequiredResources);
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NTSTATUS
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NTAPI
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MiWriteSwapPage(PMMSUPPORT AddressSpace,
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PMEMORY_AREA MemoryArea,
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PMM_REQUIRED_RESOURCES Resources);
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NTSTATUS
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NTAPI
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MiWriteFilePage(PMMSUPPORT AddressSpace,
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PMEMORY_AREA MemoryArea,
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PMM_REQUIRED_RESOURCES Resources);
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VOID
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NTAPI
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MiFreeSegmentPage(PMM_SECTION_SEGMENT Segment,
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PLARGE_INTEGER FileOffset);
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_Success_(1)
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_When_(return==STATUS_MORE_PROCESSING_REQUIRED, _At_(Required->DoAcquisition, _Post_notnull_))
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NTSTATUS
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NTAPI
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MiCowCacheSectionPage (
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_In_ PMMSUPPORT AddressSpace,
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_In_ PMEMORY_AREA MemoryArea,
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_In_ PVOID Address,
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_In_ BOOLEAN Locked,
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_Inout_ PMM_REQUIRED_RESOURCES Required);
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VOID
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MmPageOutDeleteMapping(PVOID Context,
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PEPROCESS Process,
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PVOID Address);
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VOID
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MmFreeCacheSectionPage(PVOID Context,
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MEMORY_AREA* MemoryArea,
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PVOID Address,
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PFN_NUMBER Page,
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SWAPENTRY SwapEntry,
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BOOLEAN Dirty);
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NTSTATUS
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NTAPI
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_MiFlushMappedSection(PVOID BaseAddress,
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PLARGE_INTEGER BaseOffset,
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PLARGE_INTEGER FileSize,
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BOOLEAN Dirty,
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const char *File,
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int Line);
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#define MiFlushMappedSection(A,O,S,D) _MiFlushMappedSection(A,O,S,D,__FILE__,__LINE__)
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VOID
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NTAPI
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MmFinalizeSegment(PMM_SECTION_SEGMENT Segment);
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VOID
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NTAPI
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MmFreeSectionSegments(PFILE_OBJECT FileObject);
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NTSTATUS
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NTAPI
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MmMapCacheViewInSystemSpaceAtOffset(IN PMM_SECTION_SEGMENT Segment,
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OUT PVOID* MappedBase,
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IN PLARGE_INTEGER ViewOffset,
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IN OUT PULONG ViewSize);
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NTSTATUS
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NTAPI
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_MiMapViewOfSegment(PMMSUPPORT AddressSpace,
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PMM_SECTION_SEGMENT Segment,
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PVOID* BaseAddress,
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SIZE_T ViewSize,
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ULONG Protect,
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PLARGE_INTEGER ViewOffset,
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ULONG AllocationType,
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const char *file,
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int line);
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#define MiMapViewOfSegment(AddressSpace,Segment,BaseAddress,ViewSize,Protect,ViewOffset,AllocationType) \
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_MiMapViewOfSegment(AddressSpace,Segment,BaseAddress,ViewSize,Protect,ViewOffset,AllocationType,__FILE__,__LINE__)
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NTSTATUS
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NTAPI
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MmUnmapViewOfCacheSegment(PMMSUPPORT AddressSpace,
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PVOID BaseAddress);
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NTSTATUS
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NTAPI
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MmUnmapCacheViewInSystemSpace(PVOID Address);
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_Success_(1)
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_When_(return==STATUS_MORE_PROCESSING_REQUIRED, _At_(Required->DoAcquisition, _Post_notnull_))
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NTSTATUS
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NTAPI
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MmNotPresentFaultCachePage (
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_In_ PMMSUPPORT AddressSpace,
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_In_ MEMORY_AREA* MemoryArea,
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_In_ PVOID Address,
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_In_ BOOLEAN Locked,
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_Inout_ PMM_REQUIRED_RESOURCES Required);
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NTSTATUS
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NTAPI
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MmPageOutPageFileView(PMMSUPPORT AddressSpace,
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PMEMORY_AREA MemoryArea,
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PVOID Address,
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PMM_REQUIRED_RESOURCES Required);
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FORCEINLINE
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BOOLEAN
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_MmTryToLockAddressSpace(IN PMMSUPPORT AddressSpace,
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const char *file,
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int line)
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{
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BOOLEAN Result = KeTryToAcquireGuardedMutex(&CONTAINING_RECORD(AddressSpace, EPROCESS, Vm)->AddressCreationLock);
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//DbgPrint("(%s:%d) Try Lock Address Space %x -> %s\n", file, line, AddressSpace, Result ? "true" : "false");
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return Result;
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}
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#define MmTryToLockAddressSpace(x) _MmTryToLockAddressSpace(x,__FILE__,__LINE__)
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NTSTATUS
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NTAPI
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MiWidenSegment(PMMSUPPORT AddressSpace,
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PMEMORY_AREA MemoryArea,
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PMM_REQUIRED_RESOURCES RequiredResources);
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NTSTATUS
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NTAPI
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MiSwapInSectionPage(PMMSUPPORT AddressSpace,
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PMEMORY_AREA MemoryArea,
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PMM_REQUIRED_RESOURCES RequiredResources);
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NTSTATUS
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NTAPI
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MmExtendCacheSection(PSECTION Section,
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PLARGE_INTEGER NewSize,
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BOOLEAN ExtendFile);
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NTSTATUS
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NTAPI
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_MiFlushMappedSection(PVOID BaseAddress,
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PLARGE_INTEGER BaseOffset,
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PLARGE_INTEGER FileSize,
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BOOLEAN Dirty,
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const char *File,
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int Line);
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#define MiFlushMappedSection(A,O,S,D) _MiFlushMappedSection(A,O,S,D,__FILE__,__LINE__)
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PVOID
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NTAPI
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MmGetSegmentRmap(PFN_NUMBER Page,
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PULONG RawOffset);
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NTSTATUS
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NTAPI
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MmNotPresentFaultCacheSection(KPROCESSOR_MODE Mode,
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ULONG_PTR Address,
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BOOLEAN FromMdl);
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ULONG
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NTAPI
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MiCacheEvictPages(PMM_SECTION_SEGMENT Segment,
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ULONG Target);
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NTSTATUS
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MiRosTrimCache(ULONG Target,
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ULONG Priority,
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PULONG NrFreed);
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