5 Oct
2010
5 Oct
'10
5:07 a.m.
Author: sir_richard
Date: Tue Oct 5 05:07:13 2010
New Revision: 48992
URL: http://svn.reactos.org/svn/reactos?rev=48992&view=rev
Log:
[NTOS]: Delete deprecated handling of MEMORY_AREA_IO_MAPPING. Delete all MEMORY_AREA
definitions except the ones for SEGMENT_VIEW and VIRTUAL_MEMORY. All other memory is now
owned by ARM3!
[NTOS]: Delete WriteCopyView flag from MEMORY_AREA (unused, and was taking up 4 bytes due
to alignment), and add a Vad pointer (takes up 4 bytes -- no actual size change).
[NTOS]: For VM and Section MEMORY_AREAs mapped in user-mode, build a "fake" VAD
and insert it into the VAD Root of the Process. This means there is now a consistent view
between ARM3 and RosMm in terms of user-mode address space layout, which will come in
handy later.
[NTOS]: Destroy the MEMORY_AREA's VAD when the MEMORY_AREA itself is deleted. Watch
out for the scenario explained in a previous check-in, where the VAD was caught by the
MmCleanProcessAddressSpace vad-cleanup-loop.
[NTOS]: Implement MiInsertVad to restore the old functionality of MiInsertNode when the
current parent and insertion result is not yet known. It obtains the information and calls
MiInsertNode.
Modified:
trunk/reactos/ntoskrnl/include/internal/mm.h
trunk/reactos/ntoskrnl/mm/ARM3/vadnode.c
trunk/reactos/ntoskrnl/mm/marea.c
Modified: trunk/reactos/ntoskrnl/include/internal/mm.h
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/include/internal/…
==============================================================================
--- trunk/reactos/ntoskrnl/include/internal/mm.h [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/include/internal/mm.h [iso-8859-1] Tue Oct 5 05:07:13 2010
@@ -76,20 +76,8 @@
#define MI_STATIC_MEMORY_AREAS (13)
#endif
-#define MEMORY_AREA_INVALID (0)
#define MEMORY_AREA_SECTION_VIEW (1)
-#define MEMORY_AREA_CONTINUOUS_MEMORY (2)
-#define MEMORY_AREA_NO_CACHE (3)
-#define MEMORY_AREA_IO_MAPPING (4)
-#define MEMORY_AREA_SYSTEM (5)
-#define MEMORY_AREA_MDL_MAPPING (7)
#define MEMORY_AREA_VIRTUAL_MEMORY (8)
-#define MEMORY_AREA_CACHE_SEGMENT (9)
-#define MEMORY_AREA_SHARED_DATA (10)
-#define MEMORY_AREA_KERNEL_STACK (11)
-#define MEMORY_AREA_PAGED_POOL (12)
-#define MEMORY_AREA_NO_ACCESS (13)
-#define MEMORY_AREA_PEB_OR_TEB (14)
#define MEMORY_AREA_OWNED_BY_ARM3 (15)
#define MEMORY_AREA_STATIC (0x80000000)
@@ -278,6 +266,7 @@
ULONG Flags;
BOOLEAN DeleteInProgress;
ULONG PageOpCount;
+ PVOID Vad;
union
{
struct
@@ -285,7 +274,6 @@
ROS_SECTION_OBJECT* Section;
ULONG ViewOffset;
PMM_SECTION_SEGMENT Segment;
- BOOLEAN WriteCopyView;
LIST_ENTRY RegionListHead;
} SectionData;
struct
Modified: trunk/reactos/ntoskrnl/mm/ARM3/vadnode.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/ARM3/vadnode.c…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/ARM3/vadnode.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/ARM3/vadnode.c [iso-8859-1] Tue Oct 5 05:07:13 2010
@@ -93,14 +93,34 @@
VOID
NTAPI
-MiInsertNode(
- IN PMM_AVL_TABLE Table,
- IN PMMADDRESS_NODE NewNode,
- PMMADDRESS_NODE Parent,
- TABLE_SEARCH_RESULT Result)
+MiInsertNode(IN PMM_AVL_TABLE Table,
+ IN PMMADDRESS_NODE NewNode,
+ IN PMMADDRESS_NODE Parent,
+ IN TABLE_SEARCH_RESULT Result)
{
/* Insert it into the tree */
RtlpInsertAvlTreeNode(Table, NewNode, Parent, Result);
+}
+
+VOID
+NTAPI
+MiInsertVad(IN PMMVAD Vad,
+ IN PEPROCESS Process)
+{
+ TABLE_SEARCH_RESULT Result;
+ PMMADDRESS_NODE Parent = NULL;
+
+ /* Validate the VAD and set it as the current hint */
+ ASSERT(Vad->EndingVpn >= Vad->StartingVpn);
+ Process->VadRoot.NodeHint = Vad;
+
+ /* Find the parent VAD and where this child should be inserted */
+ Result = RtlpFindAvlTableNodeOrParent(&Process->VadRoot,
(PVOID)Vad->StartingVpn, &Parent);
+ ASSERT(Result != TableFoundNode);
+ ASSERT((Parent != NULL) || (Result == TableEmptyTree));
+
+ /* Do the actual insert operation */
+ MiInsertNode(&Process->VadRoot, (PVOID)Vad, Parent, Result);
}
VOID
@@ -163,13 +183,12 @@
TABLE_SEARCH_RESULT
NTAPI
-MiFindEmptyAddressRangeDownTree(
- IN SIZE_T Length,
- IN ULONG_PTR BoundaryAddress,
- IN ULONG_PTR Alignment,
- IN PMM_AVL_TABLE Table,
- OUT PULONG_PTR Base,
- OUT PMMADDRESS_NODE *Parent)
+MiFindEmptyAddressRangeDownTree(IN SIZE_T Length,
+ IN ULONG_PTR BoundaryAddress,
+ IN ULONG_PTR Alignment,
+ IN PMM_AVL_TABLE Table,
+ OUT PULONG_PTR Base,
+ OUT PMMADDRESS_NODE *Parent)
{
PMMADDRESS_NODE Node, LowestNode, Child;
ULONG LowVpn, HighVpn;
@@ -180,7 +199,7 @@
ASSERT(BoundaryAddress <= ((ULONG_PTR)MM_HIGHEST_VAD_ADDRESS + 1));
/* Compute page length, make sure the boundary address is valid */
- Length = PAGE_ROUND_UP(Length);
+ Length = ROUND_TO_PAGES(Length);
PageCount = Length >> PAGE_SHIFT;
if ((BoundaryAddress + 1) < Length) return STATUS_NO_MEMORY;
Modified: trunk/reactos/ntoskrnl/mm/marea.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/marea.c?rev=48…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/marea.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/marea.c [iso-8859-1] Tue Oct 5 05:07:13 2010
@@ -407,6 +407,11 @@
}
}
+VOID
+NTAPI
+MiInsertVad(IN PMMVAD Vad,
+IN PEPROCESS Process);
+
static VOID
MmInsertMemoryArea(
PMMSUPPORT AddressSpace,
@@ -417,6 +422,26 @@
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))
+ {
+ ASSERT(marea->Type == MEMORY_AREA_VIRTUAL_MEMORY || marea->Type ==
MEMORY_AREA_SECTION_VIEW);
+ PMMVAD Vad;
+ Vad = ExAllocatePoolWithTag(NonPagedPool, sizeof(MMVAD), 'Fake');
+ ASSERT(Vad);
+ RtlZeroMemory(Vad, sizeof(MMVAD));
+ Vad->StartingVpn = PAGE_ROUND_DOWN(marea->StartingAddress) >>
PAGE_SHIFT;
+ Vad->EndingVpn = PAGE_ROUND_DOWN((ULONG_PTR)marea->EndingAddress - 1)
>> PAGE_SHIFT;
+ Vad->u.VadFlags.Spare = 1;
+ Vad->u.VadFlags.PrivateMemory = 1;
+ MiInsertVad(Vad, MmGetAddressSpaceOwner(AddressSpace));
+ marea->Vad = Vad;
+ }
+ else
+ {
+ marea->Vad = NULL;
+ }
if (AddressSpace->WorkingSetExpansionLinks.Flink == NULL)
{
@@ -702,6 +727,10 @@
}
}
+VOID
+NTAPI
+MiRemoveNode(IN PMMADDRESS_NODE Node,
+IN PMM_AVL_TABLE Table);
/**
* @name MmFreeMemoryArea
@@ -749,12 +778,6 @@
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_NUMBER Page = 0;
@@ -772,13 +795,28 @@
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;
}
}