Add Xen 4.4 evtchn ioctl wrappers.  Patch from Antony Saba
(antony.saba@fireeye.com).  Second of two patches from #337740.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@14454 a5019735-40e9-0310-863c-91ae7b9d1cf9
2 files changed