Index: /trunk/include/VBox/uvm.h
===================================================================
--- /trunk/include/VBox/uvm.h	(revision 22926)
+++ /trunk/include/VBox/uvm.h	(revision 22927)
@@ -50,4 +50,8 @@
     /** The virtual CPU ID.  */
     RTCPUID                         idCpu;
+#if HC_ARCH_BITS == 64
+    /** Alignment padding. */
+    uint32_t                        u32Alignment0;
+#endif
 
     /** The VM internal data. */