evtchn: refactor low-level event channel port ops

Use functions for the low-level event channel port operations
(set/clear pending, unmask, is_pending and is_masked).

Group these functions into a struct evtchn_port_op so they can be
replaced by alternate implementations (for different ABIs) on a
per-domain basis.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Keir Fraser <keir@xen.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/xen/common/schedule.c b/xen/common/schedule.c
index af3abc2f16..b8e4cb4417 100644
--- a/xen/common/schedule.c
+++ b/xen/common/schedule.c
@@ -34,6 +34,7 @@
 #include <xen/multicall.h>
 #include <xen/cpu.h>
 #include <xen/preempt.h>
+#include <xen/event.h>
 #include <public/sched.h>
 #include <xsm/xsm.h>
 
@@ -759,7 +760,7 @@ static long do_poll(struct sched_poll *sched_poll)
             goto out;
 
         rc = 0;
-        if ( test_bit(port, &shared_info(d, evtchn_pending)) )
+        if ( evtchn_port_is_pending(d, evtchn_from_port(d, port)) )
             goto out;
     }