diff -r 4c96da4993b8 include/xen/interface/grant_table.h
--- a/include/xen/interface/grant_table.h	Mon Nov 12 10:17:44 2007 +0000
+++ b/include/xen/interface/grant_table.h	Tue Nov 13 16:20:54 2007 +0000
@@ -380,6 +380,9 @@ DEFINE_XEN_GUEST_HANDLE(gnttab_unmap_and
 #define _GNTMAP_contains_pte    (4)
 #define GNTMAP_contains_pte     (1<<_GNTMAP_contains_pte)
 
+#define _GNTMAP_nocache         (5)
+#define GNTMAP_nocache          (1<<_GNTMAP_nocache)
+
 /*
  * Values for error status returns. All errors are -ve.
  */