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https://github.com/reactos/reactos.git
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Implemented MmMapViewInSystemSpace() and MmUnmapViewInSystemSpace().
svn path=/trunk/; revision=4683
This commit is contained in:
Eric Kohl
parent
10f9688a17
commit
9fef3a18ee
2 changed files with 139 additions and 48 deletions
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@ -1,6 +1,6 @@
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#ifndef _INCLUDE_DDK_MMFUNCS_H
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#define _INCLUDE_DDK_MMFUNCS_H
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/* $Id: mmfuncs.h,v 1.14 2002/10/01 19:27:19 chorns Exp $ */
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/* $Id: mmfuncs.h,v 1.15 2003/05/14 10:51:26 ekohl Exp $ */
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/* MEMORY MANAGMENT ******************************************************/
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@ -362,7 +362,7 @@ MmMapVideoDisplay (
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NTSTATUS
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STDCALL
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MmMapViewInSystemSpace (
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IN PVOID Section,
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IN PVOID SectionObject,
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OUT PVOID * MappedBase,
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IN PULONG ViewSize
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);
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@ -535,7 +535,7 @@ MmUnmapVideoDisplay (
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NTSTATUS
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STDCALL
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MmUnmapViewInSystemSpace (
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DWORD Unknown0
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IN PVOID MappedBase
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);
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#if 0
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NTSTATUS
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@ -16,7 +16,7 @@
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* $Id: section.c,v 1.109 2003/05/13 21:28:26 chorns Exp $
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/* $Id: section.c,v 1.110 2003/05/14 10:52:46 ekohl Exp $
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*
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* PROJECT: ReactOS kernel
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* FILE: ntoskrnl/mm/section.c
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@ -2620,12 +2620,12 @@ MmCreateImageSection(PHANDLE SectionHandle,
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SectionSegments[i].WriteCopy =
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!(Characteristics & IMAGE_SECTION_CHAR_SHARED);
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}
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else if (Characteristics & IMAGE_SECTION_CHAR_CODE)
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else if (Characteristics & IMAGE_SECTION_CHAR_CODE)
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{
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SectionSegments[i].Protection = PAGE_EXECUTE_READ;
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SectionSegments[i].WriteCopy = TRUE;
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}
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else if (Characteristics & IMAGE_SECTION_CHAR_DATA)
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else if (Characteristics & IMAGE_SECTION_CHAR_DATA)
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{
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SectionSegments[i].Protection = PAGE_READWRITE;
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SectionSegments[i].WriteCopy = TRUE;
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@ -2644,11 +2644,11 @@ MmCreateImageSection(PHANDLE SectionHandle,
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/*
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* Set up the attributes.
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*/
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if (Characteristics & IMAGE_SECTION_CHAR_CODE)
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if (Characteristics & IMAGE_SECTION_CHAR_CODE)
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{
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SectionSegments[i].Attributes = 0;
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}
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else if (Characteristics & IMAGE_SECTION_CHAR_DATA)
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else if (Characteristics & IMAGE_SECTION_CHAR_DATA)
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{
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SectionSegments[i].Attributes = 0;
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}
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@ -2765,19 +2765,19 @@ NtOpenSection(PHANDLE SectionHandle,
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ACCESS_MASK DesiredAccess,
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POBJECT_ATTRIBUTES ObjectAttributes)
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{
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NTSTATUS Status;
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*SectionHandle = 0;
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NTSTATUS Status;
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Status = ObOpenObjectByName(ObjectAttributes,
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MmSectionObjectType,
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NULL,
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UserMode,
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DesiredAccess,
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NULL,
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SectionHandle);
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*SectionHandle = 0;
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return(Status);
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Status = ObOpenObjectByName(ObjectAttributes,
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MmSectionObjectType,
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NULL,
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UserMode,
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DesiredAccess,
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NULL,
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SectionHandle);
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return(Status);
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}
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NTSTATUS STATIC
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@ -2795,7 +2795,7 @@ MmMapViewOfSegment(PEPROCESS Process,
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KIRQL oldIrql;
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Status = MmCreateMemoryArea(Process,
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&Process->AddressSpace,
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AddressSpace,
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MEMORY_AREA_SECTION_VIEW,
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BaseAddress,
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ViewSize,
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@ -2808,12 +2808,12 @@ MmMapViewOfSegment(PEPROCESS Process,
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(*BaseAddress), (*BaseAddress) + ViewSize);
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return(Status);
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}
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KeAcquireSpinLock(&Section->ViewListLock, &oldIrql);
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InsertTailList(&Section->ViewListHead,
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InsertTailList(&Section->ViewListHead,
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&MArea->Data.SectionData.ViewListEntry);
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KeReleaseSpinLock(&Section->ViewListLock, oldIrql);
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ObReferenceObjectByPointer((PVOID)Section,
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SECTION_MAP_READ,
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NULL,
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@ -2824,7 +2824,7 @@ MmMapViewOfSegment(PEPROCESS Process,
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MArea->Data.SectionData.WriteCopyView = FALSE;
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MmInitialiseRegion(&MArea->Data.SectionData.RegionListHead,
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ViewSize, 0, Protect);
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return(STATUS_SUCCESS);
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}
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@ -3379,13 +3379,13 @@ MmMapViewOfSection(IN PVOID SectionObject,
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AddressSpace = &Process->AddressSpace;
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MmLockSection(SectionObject);
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if (Section->AllocationAttributes & SEC_IMAGE)
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{
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ULONG i;
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PVOID ImageBase;
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ULONG ImageSize;
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ULONG ImageSize;
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MmLockAddressSpace(AddressSpace);
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ImageBase = *BaseAddress;
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@ -3393,7 +3393,7 @@ MmMapViewOfSection(IN PVOID SectionObject,
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{
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ImageBase = Section->ImageBase;
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}
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ImageSize = 0;
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for (i = 0; i < Section->NrSegments; i++)
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{
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@ -3426,11 +3426,11 @@ MmMapViewOfSection(IN PVOID SectionObject,
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return(STATUS_UNSUCCESSFUL);
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}
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}
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for (i = 0; i < Section->NrSegments; i++)
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{
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PVOID SBaseAddress;
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PVOID SBaseAddress;
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if (!(Section->Segments[i].Characteristics & IMAGE_SECTION_NOLOAD))
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{
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SBaseAddress = (PVOID)
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@ -3466,7 +3466,7 @@ MmMapViewOfSection(IN PVOID SectionObject,
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for (i = 0; i < Section->NrSegments; i++)
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{
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if (IMAGE_SECTION_INITIALIZED_DATA ==
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(Section->Segments[i].Characteristics &
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(Section->Segments[i].Characteristics &
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(IMAGE_SECTION_NOLOAD | IMAGE_SECTION_INITIALIZED_DATA)) &&
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Section->Segments[i].RawLength < Section->Segments[i].Length)
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{
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@ -3494,7 +3494,7 @@ MmMapViewOfSection(IN PVOID SectionObject,
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{
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ViewOffset = SectionOffset->u.LowPart;
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}
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if ((ViewOffset % PAGE_SIZE) != 0)
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{
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MmUnlockSection(Section);
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@ -3510,7 +3510,7 @@ MmMapViewOfSection(IN PVOID SectionObject,
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{
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(*ViewSize) = Section->MaximumSize.u.LowPart - ViewOffset;
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}
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MmLockSectionSegment(Section->Segments);
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Status = MmMapViewOfSegment(Process,
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&Process->AddressSpace,
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@ -3527,7 +3527,6 @@ MmMapViewOfSection(IN PVOID SectionObject,
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MmUnlockSection(Section);
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return(Status);
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}
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}
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MmUnlockSection(Section);
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@ -3581,19 +3580,117 @@ MmForceSectionClosed (DWORD Unknown0,
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NTSTATUS STDCALL
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MmMapViewInSystemSpace (IN PVOID Section,
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MmMapViewInSystemSpace (IN PVOID SectionObject,
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OUT PVOID * MappedBase,
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IN PULONG ViewSize)
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IN OUT PULONG ViewSize)
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{
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UNIMPLEMENTED;
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return (STATUS_NOT_IMPLEMENTED);
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PSECTION_OBJECT Section;
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PMADDRESS_SPACE AddressSpace;
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NTSTATUS Status;
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DPRINT("MmMapViewInSystemSpace() called\n");
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Section = (PSECTION_OBJECT)SectionObject;
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AddressSpace = MmGetKernelAddressSpace();
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MmLockSection(SectionObject);
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MmLockAddressSpace(AddressSpace);
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if ((*ViewSize) == 0)
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{
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(*ViewSize) = Section->MaximumSize.u.LowPart;
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}
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else if ((*ViewSize) > Section->MaximumSize.u.LowPart)
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{
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(*ViewSize) = Section->MaximumSize.u.LowPart;
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}
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MmLockSectionSegment(Section->Segments);
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Status = MmMapViewOfSegment(NULL,
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AddressSpace,
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Section,
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Section->Segments,
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MappedBase,
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*ViewSize,
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PAGE_READWRITE,
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0);
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MmUnlockSectionSegment(Section->Segments);
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MmUnlockAddressSpace(AddressSpace);
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MmUnlockSection(Section);
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return Status;
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}
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NTSTATUS STDCALL
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MmUnmapViewInSystemSpace (DWORD Unknown0)
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MmUnmapViewInSystemSpace (IN PVOID MappedBase)
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{
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UNIMPLEMENTED;
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return (STATUS_NOT_IMPLEMENTED);
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PMEMORY_AREA MemoryArea;
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PMADDRESS_SPACE AddressSpace;
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PSECTION_OBJECT Section;
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PMM_SECTION_SEGMENT Segment;
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KIRQL oldIrql;
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PLIST_ENTRY CurrentEntry;
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PMM_REGION CurrentRegion;
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NTSTATUS Status;
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DPRINT("MmUnmapViewInSystemSpace() called\n");
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AddressSpace = MmGetKernelAddressSpace();
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DPRINT("Opening memory area at base address %x\n",
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MappedBase);
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MemoryArea = MmOpenMemoryAreaByAddress(AddressSpace,
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MappedBase);
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if (MemoryArea == NULL)
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{
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return STATUS_UNSUCCESSFUL;
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}
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MemoryArea->DeleteInProgress = TRUE;
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MmLockSection(MemoryArea->Data.SectionData.Section);
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MmLockSectionSegment(MemoryArea->Data.SectionData.Segment);
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Section = MemoryArea->Data.SectionData.Section;
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Segment = MemoryArea->Data.SectionData.Segment;
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KeAcquireSpinLock(&Section->ViewListLock, &oldIrql);
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RemoveEntryList(&MemoryArea->Data.SectionData.ViewListEntry);
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KeReleaseSpinLock(&Section->ViewListLock, oldIrql);
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CurrentEntry = MemoryArea->Data.SectionData.RegionListHead.Flink;
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while (CurrentEntry != &MemoryArea->Data.SectionData.RegionListHead)
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{
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CurrentRegion =
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CONTAINING_RECORD(CurrentEntry, MM_REGION, RegionListEntry);
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CurrentEntry = CurrentEntry->Flink;
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ExFreePool(CurrentRegion);
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}
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if (MemoryArea->Data.SectionData.Section->AllocationAttributes &
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SEC_PHYSICALMEMORY)
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{
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Status = MmFreeMemoryArea(AddressSpace,
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MappedBase,
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0,
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NULL,
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NULL);
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}
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else
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{
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Status = MmFreeMemoryArea(AddressSpace,
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MappedBase,
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0,
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MmFreeSectionPage,
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MemoryArea);
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}
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MmUnlockSectionSegment(Segment);
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MmUnlockSection(Section);
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ObDereferenceObject(Section);
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return(STATUS_SUCCESS);
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}
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@ -3677,9 +3774,3 @@ MmCreateSection (OUT PSECTION_OBJECT * SectionObject,
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}
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/* EOF */
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