Hi Jan,
On 28/09/2020 11:56, Jan Beulich wrote:
Callers have no business knowing the state of the Xen end of an event
channel.
Signed-off-by: Jan Beulich <jbeul...@suse.com>
Acked-by: Julien Grall <jgr...@amazon.com>
Cheers,
--- a/xen/common/event_channel.c
+++ b/xen/common/event_channel.c
@@ -933,6 +933,11 @@ int evtchn_status(evtchn_status_t *statu
}
chn = evtchn_from_port(d, port);
+ if ( consumer_is_xen(chn) )
+ {
+ rc = -EACCES;
+ goto out;
+ }
rc = xsm_evtchn_status(XSM_TARGET, d, chn);
if ( rc )
--
Julien Grall
