diff options
| -rw-r--r-- | hw/virtio-serial-bus.c | 29 |
1 files changed, 21 insertions, 8 deletions
diff --git a/hw/virtio-serial-bus.c b/hw/virtio-serial-bus.c index e22940ecb2..796224b204 100644 --- a/hw/virtio-serial-bus.c +++ b/hw/virtio-serial-bus.c @@ -528,6 +528,26 @@ static void set_config(VirtIODevice *vdev, const uint8_t *config_data) memcpy(&config, config_data, sizeof(config)); } +static void set_status(VirtIODevice *vdev, uint8_t status) +{ + VirtIOSerial *vser; + VirtIOSerialPort *port; + + vser = DO_UPCAST(VirtIOSerial, vdev, vdev); + port = find_port_by_id(vser, 0); + + if (port && !use_multiport(port->vser) + && (status & VIRTIO_CONFIG_S_DRIVER_OK)) { + /* + * Non-multiport guests won't be able to tell us guest + * open/close status. Such guests can only have a port at id + * 0, so set guest_connected for such ports as soon as guest + * is up. + */ + port->guest_connected = true; + } +} + static void virtio_serial_save(QEMUFile *f, void *opaque) { VirtIOSerial *s = opaque; @@ -798,14 +818,6 @@ static int virtser_port_qdev_init(DeviceState *qdev) return ret; } - if (!use_multiport(port->vser)) { - /* - * Allow writes to guest in this case; we have no way of - * knowing if a guest port is connected. - */ - port->guest_connected = true; - } - port->elem.out_num = 0; QTAILQ_INSERT_TAIL(&port->vser->ports, port, next); @@ -905,6 +917,7 @@ VirtIODevice *virtio_serial_init(DeviceState *dev, virtio_serial_conf *conf) vser->vdev.get_features = get_features; vser->vdev.get_config = get_config; vser->vdev.set_config = set_config; + vser->vdev.set_status = set_status; vser->qdev = dev; |