842     XenEventChannel *channel = opaque;  in xen_device_poll()  local
844     return channel->handler(channel->opaque);  in xen_device_poll()
849     XenEventChannel *channel = opaque;  in xen_device_event()  local
850     unsigned long port = qemu_xen_evtchn_pending(channel->xeh);  in xen_device_event()
852     if (port == channel->local_port) {  in xen_device_event()
853         xen_device_poll(channel);  in xen_device_event()
855         qemu_xen_evtchn_unmask(channel->xeh, port);  in xen_device_event()
860                                           XenEventChannel *channel,  in xen_device_set_event_channel_context()  argument
864     if (!channel) {  in xen_device_set_event_channel_context()
865         error_setg(errp, "bad channel");  in xen_device_set_event_channel_context()
869     if (channel->ctx)  in xen_device_set_event_channel_context()
870         aio_set_fd_handler(channel->ctx, qemu_xen_evtchn_fd(channel->xeh),  in xen_device_set_event_channel_context()
873     channel->ctx = ctx;  in xen_device_set_event_channel_context()
875         aio_set_fd_handler(channel->ctx, qemu_xen_evtchn_fd(channel->xeh),  in xen_device_set_event_channel_context()
877                            channel);  in xen_device_set_event_channel_context()
886     XenEventChannel *channel = g_new0(XenEventChannel, 1);  in xen_device_bind_event_channel()  local
889     channel->xeh = qemu_xen_evtchn_open();  in xen_device_bind_event_channel()
890     if (!channel->xeh) {  in xen_device_bind_event_channel()
895     local_port = qemu_xen_evtchn_bind_interdomain(channel->xeh,  in xen_device_bind_event_channel()
903     channel->local_port = local_port;  in xen_device_bind_event_channel()
904     channel->handler = handler;  in xen_device_bind_event_channel()
905     channel->opaque = opaque;  in xen_device_bind_event_channel()
907     /* Only reason for failure is a NULL channel */  in xen_device_bind_event_channel()
908     xen_device_set_event_channel_context(xendev, channel,  in xen_device_bind_event_channel()
912     QLIST_INSERT_HEAD(&xendev->event_channels, channel, list);  in xen_device_bind_event_channel()
914     return channel;  in xen_device_bind_event_channel()
917     if (channel->xeh) {  in xen_device_bind_event_channel()
918         qemu_xen_evtchn_close(channel->xeh);  in xen_device_bind_event_channel()
921     g_free(channel);  in xen_device_bind_event_channel()
927                                      XenEventChannel *channel,  in xen_device_notify_event_channel()  argument
930     if (!channel) {  in xen_device_notify_event_channel()
931         error_setg(errp, "bad channel");  in xen_device_notify_event_channel()
935     if (qemu_xen_evtchn_notify(channel->xeh, channel->local_port) < 0) {  in xen_device_notify_event_channel()
940 unsigned int xen_event_channel_get_local_port(XenEventChannel *channel)  in xen_event_channel_get_local_port()  argument
942     return channel->local_port;  in xen_event_channel_get_local_port()
946                                      XenEventChannel *channel,  in xen_device_unbind_event_channel()  argument
949     if (!channel) {  in xen_device_unbind_event_channel()
950         error_setg(errp, "bad channel");  in xen_device_unbind_event_channel()
954     QLIST_REMOVE(channel, list);  in xen_device_unbind_event_channel()
956     if (channel->ctx) {  in xen_device_unbind_event_channel()
957         aio_set_fd_handler(channel->ctx, qemu_xen_evtchn_fd(channel->xeh),  in xen_device_unbind_event_channel()
961     if (qemu_xen_evtchn_unbind(channel->xeh, channel->local_port) < 0) {  in xen_device_unbind_event_channel()
965     qemu_xen_evtchn_close(channel->xeh);  in xen_device_unbind_event_channel()
966     g_free(channel);  in xen_device_unbind_event_channel()
974     XenEventChannel *channel, *next;  in xen_device_unrealize()  local
992     QLIST_FOREACH_SAFE(channel, &xendev->event_channels, list, next) {  in xen_device_unrealize()
993         xen_device_unbind_event_channel(xendev, channel, NULL);  in xen_device_unrealize()