1 files changed, 35 insertions, 0 deletions
diff --git a/hw/xen/xen_pvdev.c b/hw/xen/xen_pvdev.c
index 22a1abe213..7607e44c9a 100644
--- a/hw/xen/xen_pvdev.c
+++ b/hw/xen/xen_pvdev.c
@@ -171,3 +171,38 @@ void xen_be_printf(struct XenDevice *xendev, int msg_level,
     }
     qemu_log_flush();
 }
+
+void xen_be_evtchn_event(void *opaque)
+{
+    struct XenDevice *xendev = opaque;
+    evtchn_port_t port;
+
+    port = xenevtchn_pending(xendev->evtchndev);
+    if (port != xendev->local_port) {
+        xen_be_printf(xendev, 0,
+                      "xenevtchn_pending returned %d (expected %d)\n",
+                      port, xendev->local_port);
+        return;
+    }
+    xenevtchn_unmask(xendev->evtchndev, port);
+
+    if (xendev->ops->event) {
+        xendev->ops->event(xendev);
+    }
+}
+
+void xen_be_unbind_evtchn(struct XenDevice *xendev)
+{
+    if (xendev->local_port == -1) {
+        return;
+    }
+    qemu_set_fd_handler(xenevtchn_fd(xendev->evtchndev), NULL, NULL, NULL);
+    xenevtchn_unbind(xendev->evtchndev, xendev->local_port);
+    xen_be_printf(xendev, 2, "unbind evtchn port %d\n", xendev->local_port);
+    xendev->local_port = -1;
+}
+
+int xen_be_send_notify(struct XenDevice *xendev)
+{
+    return xenevtchn_notify(xendev->evtchndev, xendev->local_port);
+}