Missed 2 extra pages (ioreq page and xenstore page) for VTI domain, which
are put outside of configured memory size.

Signed-off-by Kevin Tian <kevin.tian@intel.com>

diff -r 5abf652c4c52 tools/python/xen/xend/image.py
--- a/tools/python/xen/xend/image.py	Tue Feb 21 18:36:00 2006
+++ b/tools/python/xen/xend/image.py	Wed Feb 22 21:10:50 2006
@@ -386,8 +386,8 @@
         extra_pages = 0
         if os.uname()[4] == 'ia64':
             page_kb = 16
-            # ROM size for guest firmware
-            extra_pages = 1024
+            # ROM size for guest firmware, ioreq page and xenstore page
+            extra_pages = 1024 + 2
         return mem + extra_pages * page_kb
 
     def register_shutdown_watch(self):