Add missing copyright notices for Xen related files.
git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15614 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/include/vki/vki-xen-evtchn.h b/include/vki/vki-xen-evtchn.h
index e7a3310..d8ff600 100644
--- a/include/vki/vki-xen-evtchn.h
+++ b/include/vki/vki-xen-evtchn.h
@@ -1,3 +1,30 @@
+/*
+ This file is part of Valgrind, a dynamic binary instrumentation
+ framework.
+
+ Copyright (C) 2012-2015 Citrix
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307, USA.
+
+ The GNU General Public License is contained in the file COPYING.
+*/
+
+/* Contributed by Andrew Cooper <andrew.cooper3@citrix.com>
+ and Ian Campbell <ian.campbell@citrix.com> */
+
#ifndef __VKI_XEN_EVTCHN_H
#define __VKI_XEN_EVTCHN_H