Index: arch/ia64/include/context.h
===================================================================
--- arch/ia64/include/context.h	(revision 6b96ab4449e063165c6c13fdee997fa057cb4975)
+++ arch/ia64/include/context.h	(revision f3ebb6497f267e4a44a4e59b458382cb8b11bc98)
@@ -39,4 +39,8 @@
 
 struct context {
+	__u64 pfs;
+	__u64 unat_caller;
+	__u64 unat_callee;
+
 	/*
 	 * General registers