Do not crash, use valid kernel PTE.

svn path=/trunk/; revision=45555

reactos/ntoskrnl/mm/ARM3/hypermap.c

@@ -45,7 +45,7 @@ MiMapPageInHyperSpace(IN PEPROCESS Process,
     //
     // Build the PTE
     //
-    TempPte = HyperTemplatePte;
+    TempPte = ValidKernelPte;
     TempPte.u.Hard.PageFrameNumber = Page;
     MI_MAKE_LOCAL_PAGE(&TempPte); // Hyperspace is local!
 
@@ -157,7 +157,7 @@ MiMapPagesToZeroInHyperSpace(IN PMMPFN *Pages,
     // Write the current PTE
     //
     PointerPte += (Offset + 1);
-    TempPte = HyperTemplatePte;
+    TempPte = ValidKernelPte;
     MI_MAKE_LOCAL_PAGE(&TempPte); // Hyperspace is local!
     do
     {

reactos/ntoskrnl/mm/ARM3/iosup.c

@@ -122,7 +122,7 @@ MmMapIoSpace(IN PHYSICAL_ADDRESS PhysicalAddress,
     //
     // Get the template and configure caching
     //
-    TempPte = HyperTemplatePte;
+    TempPte = ValidKernelPte;
     switch (CacheAttribute)
     {
         case MiNonCached:

reactos/ntoskrnl/mm/ARM3/mdlsup.c

@@ -372,7 +372,7 @@ MmMapLockedPagesSpecifyCache(IN PMDL Mdl,
         //
         // Get the template
         //
-        TempPte = HyperTemplatePte;
+        TempPte = ValidKernelPte;
         switch (CacheAttribute)
         {
             case MiNonCached:

reactos/ntoskrnl/mm/ARM3/miarm.h

@@ -127,6 +127,8 @@ typedef struct _PHYSICAL_MEMORY_DESCRIPTOR
 } PHYSICAL_MEMORY_DESCRIPTOR, *PPHYSICAL_MEMORY_DESCRIPTOR;
 
 extern MMPTE HyperTemplatePte;
+extern MMPTE ValidKernelPde;
+extern MMPTE ValidKernelPte;
 
 extern ULONG MmSizeOfNonPagedPoolInBytes;
 extern ULONG MmMaximumNonPagedPoolInBytes;

reactos/ntoskrnl/mm/ARM3/mminit.c

@@ -442,7 +442,7 @@ NTAPI
 MiBuildPagedPool(VOID)
 {
     PMMPTE PointerPte, PointerPde;
-    MMPTE TempPte = HyperTemplatePte;
+    MMPTE TempPte = ValidKernelPte;
     PFN_NUMBER PageFrameIndex;
     KIRQL OldIrql;
     ULONG Size, BitMapSize;
@@ -467,7 +467,7 @@ MiBuildPagedPool(VOID)
     // page directory array in the old ReactOS Mm is used (but in a less hacky
     // way).
     //
-    TempPte = HyperTemplatePte;
+    TempPte = ValidKernelPte;
     TempPte.u.Hard.PageFrameNumber = MmSystemPageDirectory;
     ASSERT(PointerPte->u.Hard.Valid == 0);
     ASSERT(TempPte.u.Hard.Valid == 1);

reactos/ntoskrnl/mm/ARM3/ncache.c

@@ -108,7 +108,7 @@ MmAllocateNonCachedMemory(IN ULONG NumberOfBytes)
     //
     // Setup the template PTE
     //
-    TempPte = HyperTemplatePte;
+    TempPte = ValidKernelPte;
     
     //
     // Now check what kind of caching we should use

reactos/ntoskrnl/mm/ARM3/pagfault.c

@@ -113,7 +113,7 @@ MiResolveDemandZeroFault(IN PVOID Address,
     //
     // Build the PTE
     //
-    TempPte = HyperTemplatePte;
+    TempPte = ValidKernelPte;
     TempPte.u.Hard.PageFrameNumber = PageFrameNumber;
     *PointerPte = TempPte;
     ASSERT(PointerPte->u.Hard.Valid == 1);

reactos/ntoskrnl/mm/ARM3/pool.c

@@ -213,7 +213,7 @@ MiAllocatePoolPages(IN POOL_TYPE PoolType,
             //
             // Get the template PTE we'll use to expand
             //
-            TempPte = HyperTemplatePte;
+            TempPte = ValidKernelPte;
             
             //
             // Get the first PTE in expansion space
@@ -493,7 +493,7 @@ MiAllocatePoolPages(IN POOL_TYPE PoolType,
     //
     // Loop the pages
     //
-    TempPte = HyperTemplatePte;
+    TempPte = ValidKernelPte;
     do
     {
         //

reactos/ntoskrnl/mm/ARM3/procsup.c

@@ -134,7 +134,7 @@ MmCreateKernelStack(IN BOOLEAN GuiStack,
     //
     // Setup the template stack PTE
     //
-    TempPte = HyperTemplatePte;
+    TempPte = ValidKernelPte;
     MI_MAKE_LOCAL_PAGE(&TempPte);
     MI_MAKE_DIRTY_PAGE(&TempPte);
     TempPte.u.Hard.PageFrameNumber = 0;
@@ -234,7 +234,7 @@ MmGrowKernelStackEx(IN PVOID StackPointer,
     //
     // Setup the template stack PTE
     //
-    TempPte = HyperTemplatePte;
+    TempPte = ValidKernelPte;
     MI_MAKE_LOCAL_PAGE(&TempPte);
     MI_MAKE_DIRTY_PAGE(&TempPte);
     TempPte.u.Hard.PageFrameNumber = 0;

reactos/ntoskrnl/mm/i386/page.c

@@ -1000,8 +1000,6 @@ MmUpdatePageDir(PEPROCESS Process, PVOID Address, ULONG Size)
     }
 }
 
-extern MMPTE HyperTemplatePte;
-
 VOID
 INIT_FUNCTION
 NTAPI

reactos/ntoskrnl/mm/mmdbg.c

@@ -35,6 +35,7 @@ NTAPI
 MiDbgTranslatePhysicalAddress(IN ULONG64 PhysicalAddress,
                               IN ULONG Flags)
 {
+    extern MMPTE ValidKernelPte;
     PFN_NUMBER Pfn;
     MMPTE TempPte;
     PVOID MappingBaseAddress;
@@ -77,7 +78,7 @@ MiDbgTranslatePhysicalAddress(IN ULONG64 PhysicalAddress,
     //
     //
     //
-    TempPte = HyperTemplatePte;
+    TempPte = ValidKernelPte;
 
     //
     // Convert physical address to PFN

reactos/ntoskrnl/mm/mminit.c

@@ -354,9 +354,9 @@ NTAPI
 MmInitSystem(IN ULONG Phase,
              IN PLOADER_PARAMETER_BLOCK LoaderBlock)
 {
-    extern MMPTE HyperTemplatePte;
+    extern MMPTE ValidKernelPte;
     PMMPTE PointerPte;
-    MMPTE TempPte = HyperTemplatePte;
+    MMPTE TempPte = ValidKernelPte;
     PFN_NUMBER PageFrameNumber;
     
     if (Phase == 0)