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-rw-r--r--hw/virtio-serial-bus.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/hw/virtio-serial-bus.c b/hw/virtio-serial-bus.c
index 796224b204..ffbdfc2de1 100644
--- a/hw/virtio-serial-bus.c
+++ b/hw/virtio-serial-bus.c
@@ -528,6 +528,22 @@ static void set_config(VirtIODevice *vdev, const uint8_t *config_data)
memcpy(&config, config_data, sizeof(config));
}
+static void guest_reset(VirtIOSerial *vser)
+{
+ VirtIOSerialPort *port;
+ VirtIOSerialPortClass *vsc;
+
+ QTAILQ_FOREACH(port, &vser->ports, next) {
+ vsc = VIRTIO_SERIAL_PORT_GET_CLASS(port);
+ if (port->guest_connected) {
+ port->guest_connected = false;
+
+ if (vsc->guest_close)
+ vsc->guest_close(port);
+ }
+ }
+}
+
static void set_status(VirtIODevice *vdev, uint8_t status)
{
VirtIOSerial *vser;
@@ -546,6 +562,17 @@ static void set_status(VirtIODevice *vdev, uint8_t status)
*/
port->guest_connected = true;
}
+ if (!(status & VIRTIO_CONFIG_S_DRIVER_OK)) {
+ guest_reset(vser);
+ }
+}
+
+static void vser_reset(VirtIODevice *vdev)
+{
+ VirtIOSerial *vser;
+
+ vser = DO_UPCAST(VirtIOSerial, vdev, vdev);
+ guest_reset(vser);
}
static void virtio_serial_save(QEMUFile *f, void *opaque)
@@ -918,6 +945,7 @@ VirtIODevice *virtio_serial_init(DeviceState *dev, virtio_serial_conf *conf)
vser->vdev.get_config = get_config;
vser->vdev.set_config = set_config;
vser->vdev.set_status = set_status;
+ vser->vdev.reset = vser_reset;
vser->qdev = dev;