Implement MmpGetPdeAddress() and MmpGetPteAddress() routines for i686 architecture as well as MmpMemoryExtensionEnabled() for checking PAE/LA57 support

xtoskrnl/includes/i686/mmi.h

@@ -12,14 +12,26 @@
 #include <xtos.h>
 
 
-/* I686 Memory Manager routines forward references */
+/* i686 Memory Manager routines forward references */
 XTFASTCALL
 VOID
 MmZeroPages(IN PVOID Address,
             IN ULONG Size);
 
+XTAPI
+PMMPTE
+MmpGetPdeAddress(PVOID Address);
+
+XTAPI
+PMMPTE
+MmpGetPteAddress(PVOID Address);
+
 XTAPI
 VOID
 MmpInitializeArchitecture(VOID);
 
+XTAPI
+BOOLEAN
+MmpMemoryExtensionEnabled(VOID);
+
 #endif /* __XTOSKRNL_I686_MMI_H */