Author: tkreuzer
Date: Sun Feb 5 18:41:37 2012
New Revision: 55438
URL: http://svn.reactos.org/svn/reactos?rev=55438&view=rev
Log:
[NTOSKRNL]
- Modify MiRosTakeOverPebTebRanges to only create a memory area for the shared
user page and rename it to MiRosTakeOverSharedUserPage. Previously it was
creating a memory area for the whole region from USER_SHARED_DATA up to
MM_HIGHEST_USER_ADDRESS, which is the majority of the x64 user mode address
space and doesn't even contain the PEB/TEB. Those are allocated below the
shared user page and get their memory areas created in MiInsertNode.
- Add amd64 versions of MmGetPageTableForProcess, MmUnmapPageTable,
MmGetPageFileMapping
Modified:
trunk/reactos/ntoskrnl/mm/ARM3/procsup.c
trunk/reactos/ntoskrnl/mm/amd64/page.c
Modified: trunk/reactos/ntoskrnl/mm/ARM3/procsup.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/ARM3/procsup.c?rev=55438&r1=55437&r2=55438&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/mm/ARM3/procsup.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/ARM3/procsup.c [iso-8859-1] Sun Feb 5 18:41:37
2012
@@ -24,7 +24,7 @@
VOID
NTAPI
-MiRosTakeOverPebTebRanges(IN PEPROCESS Process)
+MiRosTakeOverSharedUserPage(IN PEPROCESS Process)
{
NTSTATUS Status;
PMEMORY_AREA MemoryArea;
@@ -35,8 +35,7 @@
Status = MmCreateMemoryArea(&Process->Vm,
MEMORY_AREA_OWNED_BY_ARM3,
&AllocatedBase,
- ((ULONG_PTR)MM_HIGHEST_USER_ADDRESS - 1) -
- (ULONG_PTR)USER_SHARED_DATA,
+ PAGE_SIZE,
PAGE_READWRITE,
&MemoryArea,
TRUE,
@@ -1002,7 +1001,7 @@
KeReleaseQueuedSpinLock(LockQueuePfnLock, OldIrql);
/* Lock the VAD, ARM3-owned ranges away */
- MiRosTakeOverPebTebRanges(Process);
+ MiRosTakeOverSharedUserPage(Process);
/* Check if there's a Section Object */
if (SectionObject)
@@ -1102,7 +1101,7 @@
MmInitializeHandBuiltProcess2(IN PEPROCESS Process)
{
/* Lock the VAD, ARM3-owned ranges away */
- MiRosTakeOverPebTebRanges(Process);
+ MiRosTakeOverSharedUserPage(Process);
return STATUS_SUCCESS;
}
Modified: trunk/reactos/ntoskrnl/mm/amd64/page.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/amd64/page.c?rev=55438&r1=55437&r2=55438&view=diff
==============================================================================
--- trunk/reactos/ntoskrnl/mm/amd64/page.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/amd64/page.c [iso-8859-1] Sun Feb 5 18:41:37 2012
@@ -336,6 +336,44 @@
return Pte.u.Hard.Valid && Pte.u.Soft.Transition;
}
+static PMMPTE
+MmGetPageTableForProcess(PEPROCESS Process, PVOID Address, BOOLEAN Create)
+{
+ __debugbreak();
+ return 0;
+}
+
+BOOLEAN MmUnmapPageTable(PMMPTE Pt)
+{
+ ASSERT(FALSE);
+ return 0;
+}
+
+static ULONG64 MmGetPageEntryForProcess(PEPROCESS Process, PVOID Address)
+{
+ MMPTE Pte, *PointerPte;
+
+ PointerPte = MmGetPageTableForProcess(Process, Address, FALSE);
+ if (PointerPte)
+ {
+ Pte = *PointerPte;
+ MmUnmapPageTable(PointerPte);
+ return Pte.u.Long;
+ }
+ return 0;
+}
+
+VOID
+NTAPI
+MmGetPageFileMapping(
+ PEPROCESS Process,
+ PVOID Address,
+ SWAPENTRY* SwapEntry)
+{
+ ULONG64 Entry = MmGetPageEntryForProcess(Process, Address);
+ *SwapEntry = Entry >> 1;
+}
+
BOOLEAN
NTAPI
MmIsDirtyPage(PEPROCESS Process, PVOID Address)
