[tkreuzer] 44143: Initialize MmDebugPte from MiDebugMapping variable instead of using MiAddressToPte for a constant initializer. This way the page can be set dynamically. Use MmDebugPte to determine if ready for mapping physical pages.

Author: tkreuzer
Date: Sat Nov 14 00:23:53 2009
New Revision: 44143

URL: http://svn.reactos.org/svn/reactos?rev=44143&view=rev
Log:
Initialize MmDebugPte from MiDebugMapping variable instead of using MiAddressToPte for a constant initializer. This way the page can be set dynamically. Use MmDebugPte to determine if ready for mapping physical pages.

Modified:
    branches/ros-amd64-bringup/reactos/ntoskrnl/include/internal/mm.h
    branches/ros-amd64-bringup/reactos/ntoskrnl/mm/mmdbg.c
    branches/ros-amd64-bringup/reactos/ntoskrnl/mm/mminit.c

Modified: branches/ros-amd64-bringup/reactos/ntoskrnl/include/internal/mm.h
URL: http://svn.reactos.org/svn/reactos/branches/ros-amd64-bringup/reactos/ntoskr...
==============================================================================
--- branches/ros-amd64-bringup/reactos/ntoskrnl/include/internal/mm.h [iso-8859-1] (original)
+++ branches/ros-amd64-bringup/reactos/ntoskrnl/include/internal/mm.h [iso-8859-1] Sat Nov 14 00:23:53 2009
@@ -45,7 +45,8 @@
 extern SIZE_T MmPeakCommitment;
 extern SIZE_T MmtotalCommitLimitMaximum;

-extern BOOLEAN MiDbgReadyForPhysical;
+extern PVOID MiDebugMapping;
+extern PMMPTE MmDebugPte;

struct _KTRAP_FRAME;
 struct _EPROCESS;

Modified: branches/ros-amd64-bringup/reactos/ntoskrnl/mm/mmdbg.c
URL: http://svn.reactos.org/svn/reactos/branches/ros-amd64-bringup/reactos/ntoskr...
==============================================================================
--- branches/ros-amd64-bringup/reactos/ntoskrnl/mm/mmdbg.c [iso-8859-1] (original)
+++ branches/ros-amd64-bringup/reactos/ntoskrnl/mm/mmdbg.c [iso-8859-1] Sat Nov 14 00:23:53 2009
@@ -21,8 +21,8 @@

/* GLOBALS ********************************************************************/

-PMMPTE MmDebugPte = MiAddressToPte(MI_DEBUG_MAPPING);
-BOOLEAN MiDbgReadyForPhysical = FALSE;
+PVOID MiDebugMapping = MI_DEBUG_MAPPING;
+PMMPTE MmDebugPte = NULL;

/* FUNCTIONS ******************************************************************/

@@ -48,7 +48,7 @@
     //
     // Check if we are called too early 
     //
-    if (MiDbgReadyForPhysical == FALSE)
+    if (MmDebugPte == NULL)
     {
         //
         // The structures we require aren't initialized yet, fail

Modified: branches/ros-amd64-bringup/reactos/ntoskrnl/mm/mminit.c
URL: http://svn.reactos.org/svn/reactos/branches/ros-amd64-bringup/reactos/ntoskr...
==============================================================================
--- branches/ros-amd64-bringup/reactos/ntoskrnl/mm/mminit.c [iso-8859-1] (original)
+++ branches/ros-amd64-bringup/reactos/ntoskrnl/mm/mminit.c [iso-8859-1] Sat Nov 14 00:23:53 2009
@@ -388,7 +388,7 @@
         // Everything required for the debugger to read and write
         // physical memory is now set up
         //
-        MiDbgReadyForPhysical = TRUE;
+        MmDebugPte = MiAddressToPte(MiDebugMapping);
 #endif

/* Put the paged pool after the loaded modules */
@@ -508,7 +508,7 @@
         //
         // Now get the PTE for shared data, and read the PFN that holds it
         //
-        PointerPte = MiAddressToPte(KI_USER_SHARED_DATA);
+        PointerPte = MiAddressToPte((PVOID)KI_USER_SHARED_DATA);
         ASSERT(PointerPte->u.Hard.Valid == 1);
         PageFrameNumber = PFN_FROM_PTE(PointerPte);