#define NDEBUG
#include <debug.h>
#include <reactos/exeformat.h>
-#include "ARM3/miarm.h"
#if defined (ALLOC_PRAGMA)
#pragma alloc_text(INIT, MmCreatePhysicalMemorySection)
POBJECT_TYPE MmSectionObjectType = NULL;
+SIZE_T MmAllocationFragment;
+
ULONG_PTR MmSubsectionBase;
static GENERIC_MAPPING MmpSectionMapping = {
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_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.
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)
-{
- PHYSICAL_ADDRESS LowAddress, HighAddress, SkipBytes;
- PMDL Mdl;
- PFN_COUNT PageCount;
- PPFN_NUMBER MdlPages;
- MMPTE TempPte, *PointerPte;
- PMMPFN Pfn;
-
- /* Allocate an MDL */
- LowAddress.QuadPart = 0;
- HighAddress.QuadPart = -1;
- SkipBytes.QuadPart = 0;
- Mdl = MiAllocatePagesForMdl(LowAddress,
- HighAddress,
- SkipBytes,
- Length,
- MiPlatformCacheAttributes[0][MmCached],
- 0); // use MM_ALLOCATE_FULLY_REQUIRED
- if (!Mdl)
- {
- /* Fail */
- return NULL;
- }
-
- /* Check if we got all we need */
- if (Mdl->ByteCount < Length)
- {
- /* We didn't get enough */
- MmFreePagesFromMdl(Mdl);
- ExFreePool(Mdl);
- return NULL;
- }
-
- /* Calculate how many pages we should have */
- PageCount = BYTES_TO_PAGES(Length);
-
- /* Reserve system PTEs */
- PointerPte = MiReserveSystemPtes(PageCount, SystemPteSpace);
- if (!PointerPte)
- {
- /* Free the MDL and fail */
- MmFreePagesFromMdl(Mdl);
- ExFreePool(Mdl);
- return NULL;
- }
-
- /* Safe the base address */
- BaseAddress = MiPteToAddress(PointerPte);
-
- /* Get a pointer to the page array */
- MdlPages = (PPFN_NUMBER)(Mdl + 1);
-
- /* Get the first page's PFN entry */
- Pfn = MI_PFN_ELEMENT(*MdlPages);
-
- /* Save the pointer to the MDL in the PFN entry */
- *(PMDL*)&Pfn->OriginalPte = Mdl;
-
- /* Setup template PTE */
- TempPte = HyperTemplatePte;
-
- /* Map the PTEs */
- do
- {
- /* Sanity checks */
- ASSERT(PointerPte->u.Hard.Valid == 0);
- ASSERT(PointerPte->u.Soft.Transition == 0);
-
- /* Get the PFN */
- TempPte.u.Hard.PageFrameNumber = *MdlPages++;
-
- /* Write the PTE */
- *PointerPte++ = TempPte;
- } while (--PageCount);
-
- /* Return the base address */
- return BaseAddress;
-}
-
-VOID
-NTAPI
-MmFreeSection(PVOID BaseAddress)
-{
- PMMPTE PointerPte;
- PFN_NUMBER *MdlPages, PageFrameNumber, PageCount;
- PMMPFN Pfn;
- PMDL Mdl;
-
- /* Get a pointer to the first PTE */
- PointerPte = MiAddressToPte(BaseAddress);
-
- /* Get the page frame number of the first page */
- PageFrameNumber = PFN_FROM_PTE(PointerPte);
-
- /* Get the first pages's PFN entry */
- Pfn = MI_PFN_ELEMENT(PageFrameNumber);
-
- /* Get the MDL from the PFN */
- Mdl = *(PMDL*)&Pfn->OriginalPte;
- *(PMDL*)&Pfn->OriginalPte = NULL;
-
- /* Get the page array and count from the MDL */
- MdlPages = (PPFN_NUMBER)(Mdl + 1);
- PageCount = BYTES_TO_PAGES(Mdl->ByteCount);
-
- /* Release the system PTEs */
- MiReleaseSystemPtes(PointerPte, PageCount, SystemPteSpace);
-
- /* Free the pages and the MDL */
- MmFreePagesFromMdl(Mdl);
- ExFreePool(Mdl);
-}
-
/**********************************************************************
* NAME EXPORTED
* MmMapViewOfSection
projects / reactos.git / blobdiff