[ros-diffs] [jimtabor] 43633: - Add more information for support with function MmPageEntireDriver. Not sure where to place the function since it uses numbers for IX86/AMD and not ARM. Enable MmDisablePagingExecutive without the register entry to support it.

Author: jimtabor
Date: Tue Oct 20 01:04:50 2009
New Revision: 43633

URL: http://svn.reactos.org/svn/reactos?rev=43633&view=rev
Log:
- Add more information for support with function MmPageEntireDriver. Not sure where to
place the function since it uses numbers for IX86/AMD and not ARM. Enable
MmDisablePagingExecutive without the register entry to support it.

Modified:
    trunk/reactos/ntoskrnl/config/cmdata.c
    trunk/reactos/ntoskrnl/include/internal/mm.h
    trunk/reactos/ntoskrnl/mm/ARM3/drvmgmt.c
    trunk/reactos/ntoskrnl/mm/mminit.c

Modified: trunk/reactos/ntoskrnl/config/cmdata.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/config/cmdata.c?r…
==============================================================================
--- trunk/reactos/ntoskrnl/config/cmdata.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/config/cmdata.c [iso-8859-1] Tue Oct 20 01:04:50 2009
@@ -387,7 +387,7 @@
     {
         L"Session Manager\\Memory Management",
         L"DisablePagingExecutive",
-        &DummyData,
+        &MmDisablePagingExecutive,
         NULL,
         NULL
     },

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 20 01:04:50 2009
@@ -14,6 +14,7 @@
 extern ULONG MmTotalNonPagedPoolQuota;
 extern PHYSICAL_ADDRESS MmSharedDataPagePhysicalAddress;
 extern ULONG MmNumberOfPhysicalPages;
+extern UCHAR MmDisablePagingExecutive;
 extern ULONG MmLowestPhysicalPage;
 extern ULONG MmHighestPhysicalPage;
 extern ULONG MmAvailablePages;

Modified: trunk/reactos/ntoskrnl/mm/ARM3/drvmgmt.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/ARM3/drvmgmt.c…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/ARM3/drvmgmt.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/ARM3/drvmgmt.c [iso-8859-1] Tue Oct 20 01:04:50 2009
@@ -119,8 +119,32 @@
     //
     // We should find the driver loader entry and return its base address
     //
+    //PMMPTE Pte;
     PLDR_DATA_TABLE_ENTRY pLdrDataTabEntry =
MiLookupDataTableEntry(AddressWithinSection);
-    if (pLdrDataTabEntry) return pLdrDataTabEntry->DllBase;
+    if (pLdrDataTabEntry)
+    {
+        //
+        //  Is Paging Disabled or Check if we had already mapped it in for this section
+        //
+        if ( (MmDisablePagingExecutive & 1) || pLdrDataTabEntry->SectionPointer )
+        {
+           return pLdrDataTabEntry->DllBase;
+        }
+        //
+        // Flush all queued DPCs.
+        //
+        KeFlushQueuedDpcs();
+        //
+        // Get the PTE for this section
+        //
+        //Pte = MiGetPteAddress(pLdrDataTabEntry->DllBase);
+        //
+        //MiSetPagingOfDriver( (Pte & (4,194,304 - 4) ) - 0x40000000 , 
+        //                     (Pte & (4,194,304 - 4) ) - 0x40000000 + 4 *
+        //                               pLdrDataTabEntry->SizeOfImage >>
PAGE_SHIFT - 4 );
+        //
+        return pLdrDataTabEntry->DllBase;
+    }
     return NULL;
 }
 

Modified: trunk/reactos/ntoskrnl/mm/mminit.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/mminit.c?rev=4…
==============================================================================
--- trunk/reactos/ntoskrnl/mm/mminit.c [iso-8859-1] (original)
+++ trunk/reactos/ntoskrnl/mm/mminit.c [iso-8859-1] Tue Oct 20 01:04:50 2009
@@ -50,6 +50,10 @@
 
 PBOOLEAN Mm64BitPhysicalAddress = FALSE;
 ULONG MmReadClusterSize;
+//
+// 0 | 1 is on/off paging, 2 is undocumented
+//
+UCHAR MmDisablePagingExecutive = 1; // Forced to off
 PMMPTE MmSharedUserDataPte;
 PMMSUPPORT MmKernelAddressSpace;
 extern KMUTANT MmSystemLoadLock;