Index: /trunk/src/VBox/VMM/VMMAll/PGMAllPhys.cpp
===================================================================
--- /trunk/src/VBox/VMM/VMMAll/PGMAllPhys.cpp	(revision 26678)
+++ /trunk/src/VBox/VMM/VMMAll/PGMAllPhys.cpp	(revision 26679)
@@ -464,5 +464,5 @@
 int pgmPhysAllocLargePage(PVM pVM, RTGCPHYS GCPhys, RTHCPHYS *pHCPhys)
 {
-    RTGCPHYS GCPhysBase = GCPhys & X86_PDE_PAE_PG_MASK_FULL;
+    RTGCPHYS GCPhysBase = GCPhys & X86_PDE2M_PAE_PG_MASK;
     LogFlow(("pgmPhysAllocLargePage: %RGp base %RGp\n", GCPhys, GCPhysBase));