POBJECT_TYPE MmSectionObjectType = NULL;
+BOOLEAN MmAllocationFragment;
+
ULONG_PTR MmSubsectionBase;
static GENERIC_MAPPING MmpSectionMapping = {
PFILE_OBJECT FileObject;
PBCB Bcb;
SWAPENTRY SavedSwapEntry;
- PFN_TYPE Page;
+ PFN_NUMBER Page;
BOOLEAN IsImageSection;
ULONG FileOffset;
NTSTATUS
NTAPI
-MiCopyFromUserPage(PFN_TYPE DestPage, PVOID SourceAddress)
+MiCopyFromUserPage(PFN_NUMBER DestPage, PVOID SourceAddress)
{
PEPROCESS Process;
KIRQL Irql;
NTAPI
MiReadPage(PMEMORY_AREA MemoryArea,
ULONG SegOffset,
- PPFN_TYPE Page)
+ PPFN_NUMBER Page)
/*
* FUNCTION: Read a page for a section backed memory area.
* PARAMETERS:
BOOLEAN Locked)
{
ULONG Offset;
- PFN_TYPE Page;
+ PFN_NUMBER Page;
NTSTATUS Status;
PVOID PAddress;
PROS_SECTION_OBJECT Section;
PMM_REGION Region;
BOOLEAN HasSwapEntry;
PEPROCESS Process = MmGetAddressSpaceOwner(AddressSpace);
- KIRQL OldIrql;
/*
* There is a window between taking the page fault and locking the
*/
if (MmIsPagePresent(Process, Address))
{
- if (Locked)
- {
- OldIrql = KeAcquireQueuedSpinLock(LockQueuePfnLock);
- MmLockPage(MmGetPfnForProcess(Process, Address));
- KeReleaseQueuedSpinLock(LockQueuePfnLock, OldIrql);
- }
return(STATUS_SUCCESS);
}
}
MmInsertRmap(Page, Process, (PVOID)PAddress);
}
- if (Locked)
- {
- OldIrql = KeAcquireQueuedSpinLock(LockQueuePfnLock);
- MmLockPage(Page);
- KeReleaseQueuedSpinLock(LockQueuePfnLock, OldIrql);
- }
MmUnlockSectionSegment(Segment);
PageOp->Status = STATUS_SUCCESS;
MmspCompleteAndReleasePageOp(PageOp);
/*
* Finish the operation
*/
- if (Locked)
- {
- OldIrql = KeAcquireQueuedSpinLock(LockQueuePfnLock);
- MmLockPage(Page);
- KeReleaseQueuedSpinLock(LockQueuePfnLock, OldIrql);
- }
PageOp->Status = STATUS_SUCCESS;
MmspCompleteAndReleasePageOp(PageOp);
DPRINT("Address 0x%.8X\n", Address);
KeBugCheck(MEMORY_MANAGEMENT);
return(Status);
}
- /*
- * Don't add an rmap entry since the page mapped could be for
- * anything.
- */
- if (Locked)
- {
- OldIrql = KeAcquireQueuedSpinLock(LockQueuePfnLock);
- MmLockPage(Page);
- KeReleaseQueuedSpinLock(LockQueuePfnLock, OldIrql);
- }
/*
* Cleanup and release locks
return(Status);
}
MmInsertRmap(Page, Process, (PVOID)PAddress);
- if (Locked)
- {
- OldIrql = KeAcquireQueuedSpinLock(LockQueuePfnLock);
- MmLockPage(Page);
- KeReleaseQueuedSpinLock(LockQueuePfnLock, OldIrql);
- }
/*
* Cleanup and release locks
}
MmInsertRmap(Page, Process, (PVOID)PAddress);
- if (Locked)
- {
- OldIrql = KeAcquireQueuedSpinLock(LockQueuePfnLock);
- MmLockPage(Page);
- KeReleaseQueuedSpinLock(LockQueuePfnLock, OldIrql);
- }
PageOp->Status = STATUS_SUCCESS;
MmspCompleteAndReleasePageOp(PageOp);
DPRINT("Address 0x%.8X\n", Address);
KeBugCheck(MEMORY_MANAGEMENT);
}
MmInsertRmap(Page, Process, (PVOID)PAddress);
- if (Locked)
- {
- OldIrql = KeAcquireQueuedSpinLock(LockQueuePfnLock);
- MmLockPage(Page);
- KeReleaseQueuedSpinLock(LockQueuePfnLock, OldIrql);
- }
PageOp->Status = STATUS_SUCCESS;
MmspCompleteAndReleasePageOp(PageOp);
DPRINT("Address 0x%.8X\n", Address);
KeBugCheck(MEMORY_MANAGEMENT);
}
MmInsertRmap(Page, Process, (PVOID)PAddress);
- if (Locked)
- {
- OldIrql = KeAcquireQueuedSpinLock(LockQueuePfnLock);
- MmLockPage(Page);
- KeReleaseQueuedSpinLock(LockQueuePfnLock, OldIrql);
- }
PageOp->Status = STATUS_SUCCESS;
MmspCompleteAndReleasePageOp(PageOp);
DPRINT("Address 0x%.8X\n", Address);
{
PMM_SECTION_SEGMENT Segment;
PROS_SECTION_OBJECT Section;
- PFN_TYPE OldPage;
- PFN_TYPE NewPage;
+ PFN_NUMBER OldPage;
+ PFN_NUMBER NewPage;
NTSTATUS Status;
PVOID PAddress;
ULONG Offset;
PMM_REGION Region;
ULONG Entry;
PEPROCESS Process = MmGetAddressSpaceOwner(AddressSpace);
- KIRQL OldIrql;
DPRINT("MmAccessFaultSectionView(%x, %x, %x, %x)\n", AddressSpace, MemoryArea, Address, Locked);
DPRINT1("Unable to create virtual mapping\n");
KeBugCheck(MEMORY_MANAGEMENT);
}
- if (Locked)
- {
- OldIrql = KeAcquireQueuedSpinLock(LockQueuePfnLock);
- MmLockPage(NewPage);
- MmUnlockPage(OldPage);
- KeReleaseQueuedSpinLock(LockQueuePfnLock, OldIrql);
- }
/*
* Unshare the old page.
{
MM_SECTION_PAGEOUT_CONTEXT* PageOutContext;
BOOLEAN WasDirty;
- PFN_TYPE Page;
+ PFN_NUMBER Page;
PageOutContext = (MM_SECTION_PAGEOUT_CONTEXT*)Context;
if (Process)
PVOID Address,
PMM_PAGEOP PageOp)
{
- PFN_TYPE Page;
+ PFN_NUMBER Page;
MM_SECTION_PAGEOUT_CONTEXT Context;
SWAPENTRY SwapEntry;
ULONG Entry;
ULONG Offset;
PROS_SECTION_OBJECT Section;
PMM_SECTION_SEGMENT Segment;
- PFN_TYPE Page;
+ PFN_NUMBER Page;
SWAPENTRY SwapEntry;
ULONG Entry;
BOOLEAN Private;
{
ULONG Offset;
ULONG Entry;
- PFN_TYPE Page;
+ PFN_NUMBER Page;
Offset = (ULONG_PTR)Address - (ULONG_PTR)MemoryArea->StartingAddress
+ MemoryArea->Data.SectionData.ViewOffset;
MmQuerySectionView(PMEMORY_AREA MemoryArea,
PVOID Address,
PMEMORY_BASIC_INFORMATION Info,
- PULONG ResultLength)
+ PSIZE_T ResultLength)
{
PMM_REGION Region;
PVOID RegionBaseAddress;
ULONG Offset;
ULONG Entry;
ULONG SavedSwapEntry;
- PFN_TYPE Page;
+ PFN_NUMBER Page;
Page = 0;
static VOID
MmFreeSectionPage(PVOID Context, MEMORY_AREA* MemoryArea, PVOID Address,
- PFN_TYPE Page, SWAPENTRY SwapEntry, BOOLEAN Dirty)
+ PFN_NUMBER Page, SWAPENTRY SwapEntry, BOOLEAN Dirty)
{
ULONG Entry;
PFILE_OBJECT FileObject;
return STATUS_NOT_IMPLEMENTED;
}
-
-/**********************************************************************
- * NAME INTERNAL
- * MmAllocateSection@4
- *
- * DESCRIPTION
- *
- * ARGUMENTS
- * Length
- *
- * RETURN VALUE
- *
- * NOTE
- * Code taken from ntoskrnl/mm/special.c.
- *
- * REVISIONS
- */
-PVOID NTAPI
-MmAllocateSection (IN ULONG Length, PVOID BaseAddress)
-{
- PVOID Result;
- MEMORY_AREA* marea;
- NTSTATUS Status;
- PMMSUPPORT AddressSpace;
- PHYSICAL_ADDRESS BoundaryAddressMultiple;
-
- DPRINT("MmAllocateSection(Length %x)\n",Length);
-
- BoundaryAddressMultiple.QuadPart = 0;
-
- AddressSpace = MmGetKernelAddressSpace();
- Result = BaseAddress;
- MmLockAddressSpace(AddressSpace);
- Status = MmCreateMemoryArea (AddressSpace,
- MEMORY_AREA_SYSTEM,
- &Result,
- Length,
- 0,
- &marea,
- FALSE,
- 0,
- BoundaryAddressMultiple);
- MmUnlockAddressSpace(AddressSpace);
-
- if (!NT_SUCCESS(Status))
- {
- return (NULL);
- }
- DPRINT("Result %p\n",Result);
-
- /* Create a virtual mapping for this memory area */
- MmMapMemoryArea(Result, Length, MC_NPPOOL, PAGE_READWRITE);
-
- return ((PVOID)Result);
-}
-
-
/**********************************************************************
* NAME EXPORTED
* MmMapViewOfSection