MEMORY_AREA MiStaticMemoryAreas[MI_STATIC_MEMORY_AREAS];
ULONG MiStaticMemoryAreaCount;
-/* #define VALIDATE_MEMORY_AREAS */
-
/* FUNCTIONS *****************************************************************/
/**
return Node;
}
-#ifdef VALIDATE_MEMORY_AREAS
-static VOID MmVerifyMemoryAreas(PMMSUPPORT AddressSpace)
-{
- PMEMORY_AREA Node;
-
- ASSERT(AddressSpace != NULL);
-
- /* Special case for empty tree. */
- if (AddressSpace->WorkingSetExpansionLinks.Flink == NULL)
- return;
-
- /* Traverse the tree from left to right. */
- for (Node = MmIterateFirstNode(AddressSpace->WorkingSetExpansionLinks.Flink);
- Node != NULL;
- Node = MmIterateNextNode(Node))
- {
- /* FiN: The starting address can be NULL if someone explicitely asks
- * for NULL address. */
- ASSERT(Node->StartingAddress == NULL);
- ASSERT(Node->EndingAddress >= Node->StartingAddress);
- }
-}
-#else
-#define MmVerifyMemoryAreas(x)
-#endif
-
-VOID NTAPI
-MmDumpMemoryAreas(PMMSUPPORT AddressSpace)
-{
- PMEMORY_AREA Node;
-
- DbgPrint("MmDumpMemoryAreas()\n");
-
- /* Special case for empty tree. */
- if (AddressSpace->WorkingSetExpansionLinks.Flink == NULL)
- return;
-
- /* Traverse the tree from left to right. */
- for (Node = MmIterateFirstNode((PMEMORY_AREA)AddressSpace->WorkingSetExpansionLinks.Flink);
- Node != NULL;
- Node = MmIterateNextNode(Node))
- {
- DbgPrint("Start %p End %p Protect %x Flags %x\n",
- Node->StartingAddress, Node->EndingAddress,
- Node->Protect, Node->Flags);
- }
-
- DbgPrint("Finished MmDumpMemoryAreas()\n");
-}
-
PMEMORY_AREA NTAPI
MmLocateMemoryAreaByAddress(
PMMSUPPORT AddressSpace,
DPRINT("MmLocateMemoryAreaByAddress(AddressSpace %p, Address %p)\n",
AddressSpace, Address);
- MmVerifyMemoryAreas(AddressSpace);
-
while (Node != NULL)
{
if (Address < Node->StartingAddress)
PMEMORY_AREA Node;
PVOID Extent = (PVOID)((ULONG_PTR)Address + Length);
- MmVerifyMemoryAreas(AddressSpace);
-
/* Special case for empty tree. */
if (AddressSpace->WorkingSetExpansionLinks.Flink == NULL)
return NULL;
}
}
+VOID
+NTAPI
+MiInsertVad(IN PMMVAD Vad,
+IN PEPROCESS Process);
+
+ULONG
+NTAPI
+MiMakeProtectionMask(
+ IN ULONG Protect
+);
+
static VOID
MmInsertMemoryArea(
PMMSUPPORT AddressSpace,
PMEMORY_AREA PreviousNode;
ULONG Depth = 0;
- MmVerifyMemoryAreas(AddressSpace);
+ /* Build a lame VAD if this is a user-space allocation */
+ if ((marea->EndingAddress < MmSystemRangeStart) && (marea->Type != MEMORY_AREA_OWNED_BY_ARM3))
+ {
+ PMMVAD Vad;
+
+ ASSERT(marea->Type == MEMORY_AREA_VIRTUAL_MEMORY || marea->Type == MEMORY_AREA_SECTION_VIEW);
+ Vad = ExAllocatePoolWithTag(NonPagedPool, sizeof(MMVAD), 'Fake');
+ ASSERT(Vad);
+ RtlZeroMemory(Vad, sizeof(MMVAD));
+ Vad->StartingVpn = PAGE_ROUND_DOWN(marea->StartingAddress) >> PAGE_SHIFT;
+ /*
+ * For some strange reason, it is perfectly valid to create a MAREA from 0x1000 to... 0x1000.
+ * In a normal OS/Memory Manager, this would be retarded, but ReactOS allows this (how it works
+ * I don't even want to know).
+ */
+ if (marea->EndingAddress != marea->StartingAddress)
+ {
+ Vad->EndingVpn = PAGE_ROUND_DOWN((ULONG_PTR)marea->EndingAddress - 1) >> PAGE_SHIFT;
+ }
+ else
+ {
+ Vad->EndingVpn = Vad->StartingVpn;
+ }
+ Vad->u.VadFlags.Spare = 1;
+ Vad->u.VadFlags.PrivateMemory = 1;
+ Vad->u.VadFlags.Protection = MiMakeProtectionMask(marea->Protect);
+ MiInsertVad(Vad, MmGetAddressSpaceOwner(AddressSpace));
+ marea->Vad = Vad;
+ }
+ else
+ {
+ marea->Vad = NULL;
+ }
if (AddressSpace->WorkingSetExpansionLinks.Flink == NULL)
{
PMEMORY_AREA FirstNode;
PMEMORY_AREA PreviousNode;
- MmVerifyMemoryAreas(AddressSpace);
-
DPRINT("LowestAddress: %p HighestAddress: %p\n",
LowestAddress, HighestAddress);
break;
AlignedAddress = MM_ROUND_UP(PreviousNode->EndingAddress, Granularity);
- if (Node->StartingAddress > AlignedAddress &&
- (ULONG_PTR)Node->StartingAddress - (ULONG_PTR)AlignedAddress >= Length)
+ if (AlignedAddress >= LowestAddress)
{
- DPRINT("MmFindGapBottomUp: %p\n", AlignedAddress);
- return AlignedAddress;
+ if (Node->StartingAddress > AlignedAddress &&
+ (ULONG_PTR)Node->StartingAddress - (ULONG_PTR)AlignedAddress >= Length)
+ {
+ DPRINT("MmFindGapBottomUp: %p\n", AlignedAddress);
+ ASSERT(AlignedAddress >= LowestAddress);
+ return AlignedAddress;
+ }
}
-
PreviousNode = Node;
}
(ULONG_PTR)HighestAddress - (ULONG_PTR)AlignedAddress >= Length)
{
DPRINT("MmFindGapBottomUp: %p\n", AlignedAddress);
+ ASSERT(AlignedAddress >= LowestAddress);
return AlignedAddress;
}
(ULONG_PTR)FirstNode->StartingAddress - (ULONG_PTR)AlignedAddress >= Length)
{
DPRINT("MmFindGapBottomUp: %p\n", AlignedAddress);
+ ASSERT(AlignedAddress >= LowestAddress);
return AlignedAddress;
}
PMEMORY_AREA Node;
PMEMORY_AREA PreviousNode;
- MmVerifyMemoryAreas(AddressSpace);
-
DPRINT("LowestAddress: %p HighestAddress: %p\n",
LowestAddress, HighestAddress);
PVOID HighestAddress = MmGetAddressSpaceOwner(AddressSpace) ?
(PVOID)((ULONG_PTR)MmSystemRangeStart - 1) : (PVOID)MAXULONG_PTR;
- MmVerifyMemoryAreas(AddressSpace);
-
Address = MM_ROUND_DOWN(Address, PAGE_SIZE);
if (LowestAddress < MmSystemRangeStart)
}
}
+VOID
+NTAPI
+MiRemoveNode(IN PMMADDRESS_NODE Node,
+IN PMM_AVL_TABLE Table);
/**
* @name MmFreeMemoryArea
PMEMORY_AREA *ParentReplace;
ULONG_PTR Address;
PVOID EndAddress;
- PEPROCESS CurrentProcess = PsGetCurrentProcess();
- PEPROCESS Process = MmGetAddressSpaceOwner(AddressSpace);
-
- if (Process != NULL &&
- Process != CurrentProcess)
- {
- KeAttachProcess(&Process->Pcb);
- }
-
- EndAddress = MM_ROUND_UP(MemoryArea->EndingAddress, PAGE_SIZE);
- for (Address = (ULONG_PTR)MemoryArea->StartingAddress;
- Address < (ULONG_PTR)EndAddress;
- Address += PAGE_SIZE)
- {
- if (MemoryArea->Type == MEMORY_AREA_IO_MAPPING)
- {
- MmRawDeleteVirtualMapping((PVOID)Address);
- }
- else
- {
- BOOLEAN Dirty = FALSE;
- SWAPENTRY SwapEntry = 0;
- PFN_TYPE Page = 0;
-
- if (MmIsPageSwapEntry(Process, (PVOID)Address))
- {
- MmDeletePageFileMapping(Process, (PVOID)Address, &SwapEntry);
- }
- else
- {
- MmDeleteVirtualMapping(Process, (PVOID)Address, FALSE, &Dirty, &Page);
- }
- if (FreePage != NULL)
- {
- FreePage(FreePageContext, MemoryArea, (PVOID)Address,
- Page, SwapEntry, (BOOLEAN)Dirty);
- }
- }
- }
-
- if (Process != NULL &&
- Process != CurrentProcess)
+
+ if (MemoryArea->Type != MEMORY_AREA_OWNED_BY_ARM3)
{
- KeDetachProcess();
- }
+ PEPROCESS CurrentProcess = PsGetCurrentProcess();
+ PEPROCESS Process = MmGetAddressSpaceOwner(AddressSpace);
+
+ if (Process != NULL &&
+ Process != CurrentProcess)
+ {
+ KeAttachProcess(&Process->Pcb);
+ }
+
+ EndAddress = MM_ROUND_UP(MemoryArea->EndingAddress, PAGE_SIZE);
+ for (Address = (ULONG_PTR)MemoryArea->StartingAddress;
+ Address < (ULONG_PTR)EndAddress;
+ Address += PAGE_SIZE)
+ {
+ BOOLEAN Dirty = FALSE;
+ SWAPENTRY SwapEntry = 0;
+ PFN_NUMBER Page = 0;
+
+ if (MmIsPageSwapEntry(Process, (PVOID)Address))
+ {
+ MmDeletePageFileMapping(Process, (PVOID)Address, &SwapEntry);
+ }
+ else
+ {
+ MmDeleteVirtualMapping(Process, (PVOID)Address, FALSE, &Dirty, &Page);
+ }
+ if (FreePage != NULL)
+ {
+ FreePage(FreePageContext, MemoryArea, (PVOID)Address,
+ Page, SwapEntry, (BOOLEAN)Dirty);
+ }
+ }
+
+ if (Process != NULL &&
+ Process != CurrentProcess)
+ {
+ KeDetachProcess();
+ }
+
+ if (MemoryArea->Vad)
+ {
+ ASSERT(MemoryArea->EndingAddress < MmSystemRangeStart);
+ ASSERT(MemoryArea->Type == MEMORY_AREA_VIRTUAL_MEMORY || MemoryArea->Type == MEMORY_AREA_SECTION_VIEW);
+
+ /* MmCleanProcessAddressSpace might have removed it (and this would be MmDeleteProcessAdressSpace) */
+ ASSERT(((PMMVAD)MemoryArea->Vad)->u.VadFlags.Spare != 0);
+ if (((PMMVAD)MemoryArea->Vad)->u.VadFlags.Spare == 1)
+ {
+ MiRemoveNode(MemoryArea->Vad, &Process->VadRoot);
+ }
+
+ ExFreePool(MemoryArea->Vad);
+ MemoryArea->Vad = NULL;
+ }
+ }
/* Remove the tree item. */
{
return STATUS_SUCCESS;
}
-/**
- * @name MmFreeMemoryAreaByPtr
- *
- * Free an existing memory area given a pointer inside it.
- *
- * @param AddressSpace
- * Address space to free the area from.
- * @param BaseAddress
- * Address in the memory area we're about to free.
- * @param FreePage
- * Callback function for each freed page.
- * @param FreePageContext
- * Context passed to the callback function.
- *
- * @return Status
- *
- * @see MmFreeMemoryArea
- *
- * @todo Should we require the BaseAddress to be really the starting
- * address of the memory area or is the current relaxed check
- * (BaseAddress can point anywhere in the memory area) acceptable?
- *
- * @remarks Lock the address space before calling this function.
- */
-
-NTSTATUS NTAPI
-MmFreeMemoryAreaByPtr(
- PMMSUPPORT AddressSpace,
- PVOID BaseAddress,
- PMM_FREE_PAGE_FUNC FreePage,
- PVOID FreePageContext)
-{
- PMEMORY_AREA MemoryArea;
-
- DPRINT("MmFreeMemoryArea(AddressSpace %p, BaseAddress %p, "
- "FreePageContext %p)\n", AddressSpace, BaseAddress,
- FreePageContext);
-
- MmVerifyMemoryAreas(AddressSpace);
-
- MemoryArea = MmLocateMemoryAreaByAddress(AddressSpace,
- BaseAddress);
- if (MemoryArea == NULL)
- {
- KeBugCheck(MEMORY_MANAGEMENT);
- return(STATUS_UNSUCCESSFUL);
- }
-
- return MmFreeMemoryArea(AddressSpace, MemoryArea, FreePage, FreePageContext);
-}
-
/**
* @name MmCreateMemoryArea
*
Type, BaseAddress, *BaseAddress, Length, AllocationFlags,
FixedAddress, Result);
- MmVerifyMemoryAreas(AddressSpace);
-
Granularity = (MEMORY_AREA_VIRTUAL_MEMORY == Type ? MM_VIRTMEM_GRANULARITY : PAGE_SIZE);
if ((*BaseAddress) == 0 && !FixedAddress)
{
for (i = 0; i < PAGE_ROUND_UP(Length) / PAGE_SIZE; i++)
{
- PFN_TYPE Page;
+ PFN_NUMBER Page;
Status = MmRequestPageMemoryConsumer(Consumer, TRUE, &Page);
if (!NT_SUCCESS(Status))
}
}
-
-VOID NTAPI
-MmReleaseMemoryAreaIfDecommitted(PEPROCESS Process,
- PMMSUPPORT AddressSpace,
- PVOID BaseAddress)
+NTSTATUS
+NTAPI
+MmDeleteProcessAddressSpace(PEPROCESS Process)
{
+ PVOID Address;
PMEMORY_AREA MemoryArea;
- PLIST_ENTRY Entry;
- PMM_REGION Region;
- BOOLEAN Reserved;
- MmVerifyMemoryAreas(AddressSpace);
+ DPRINT("MmDeleteProcessAddressSpace(Process %x (%s))\n", Process,
+ Process->ImageFileName);
- MemoryArea = MmLocateMemoryAreaByAddress(AddressSpace, BaseAddress);
- if (MemoryArea != NULL)
- {
- Entry = MemoryArea->Data.VirtualMemoryData.RegionListHead.Flink;
- Reserved = TRUE;
- while (Reserved && Entry != &MemoryArea->Data.VirtualMemoryData.RegionListHead)
- {
- Region = CONTAINING_RECORD(Entry, MM_REGION, RegionListEntry);
- Reserved = (MEM_RESERVE == Region->Type);
- Entry = Entry->Flink;
- }
+ RemoveEntryList(&Process->MmProcessLinks);
+
+ MmLockAddressSpace(&Process->Vm);
- if (Reserved)
+ while ((MemoryArea = (PMEMORY_AREA)Process->Vm.WorkingSetExpansionLinks.Flink) != NULL)
+ {
+ switch (MemoryArea->Type)
{
- MmFreeVirtualMemory(Process, MemoryArea);
+ case MEMORY_AREA_SECTION_VIEW:
+ Address = (PVOID)MemoryArea->StartingAddress;
+ MmUnlockAddressSpace(&Process->Vm);
+ MmUnmapViewOfSection(Process, Address);
+ MmLockAddressSpace(&Process->Vm);
+ break;
+
+ case MEMORY_AREA_VIRTUAL_MEMORY:
+ MmFreeVirtualMemory(Process, MemoryArea);
+ break;
+
+ case MEMORY_AREA_OWNED_BY_ARM3:
+ MmFreeMemoryArea(&Process->Vm,
+ MemoryArea,
+ NULL,
+ NULL);
+ break;
+
+ default:
+ KeBugCheck(MEMORY_MANAGEMENT);
}
}
+
+ MmUnlockAddressSpace(&Process->Vm);
+
+ DPRINT("Finished MmReleaseMmInfo()\n");
+ return(STATUS_SUCCESS);
}
/* EOF */
projects / reactos.git / blobdiff