Add pages related macros and definitions

sdk/xtdk/i686/mmtypes.h

@@ -12,6 +12,11 @@
 #include <xtbase.h>
 
 
+/* Pages related definitions */
+#define MM_PAGE_MASK                               0xFFF
+#define MM_PAGE_SHIFT                              12
+#define MM_PAGE_SIZE                               4096
+
 /* Page Table entry structure definition (with PAE support) */
 typedef struct _HARDWARE_PTE
 {