include/uapi/xen/Kbuild - chromiumos/third_party/kernel - Git at Google

 # UAPI Header export list
 header-y += evtchn.h
 header-y += gntalloc.h
 header-y += gntdev.h
 header-y += privcmd.h
	# UAPI Header export list
	header-y += evtchn.h
	header-y += gntalloc.h
	header-y += gntdev.h
	header-y += privcmd.h