[Qemu-devel] [PATCH 6/8] virtio-serial-bus: Add ability to hot-unplug ports

[Amit Shah <amit.shah@redhat.com>]

Signed-off-by: Amit Shah <amit.shah@redhat.com>
---
 hw/virtio-serial-bus.c |    2 ++
 hw/virtio-serial.h     |    1 +
 2 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/hw/virtio-serial-bus.c b/hw/virtio-serial-bus.c
index bc47629..cf532f6 100644
--- a/hw/virtio-serial-bus.c
+++ b/hw/virtio-serial-bus.c
@@ -843,6 +843,8 @@ static int virtser_port_qdev_exit(DeviceState *qdev)
     VirtIOSerialPort *port = DO_UPCAST(VirtIOSerialPort, dev, &dev->qdev);
     VirtIOSerial *vser = port->vser;
 
+    send_control_event(port, VIRTIO_CONSOLE_PORT_REMOVE, 1);
+
     /*
      * Don't decrement nr_ports here; thus we keep a linearly
      * increasing port id. Not utilising an id again saves us a couple
diff --git a/hw/virtio-serial.h b/hw/virtio-serial.h
index acb601d..13f6989 100644
--- a/hw/virtio-serial.h
+++ b/hw/virtio-serial.h
@@ -61,6 +61,7 @@ struct virtio_console_header {
 #define VIRTIO_CONSOLE_PORT_NAME	4
 #define VIRTIO_CONSOLE_THROTTLE_PORT	5
 #define VIRTIO_CONSOLE_CACHE_BUFFERS	6
+#define VIRTIO_CONSOLE_PORT_REMOVE	7
 
 /* == In-qemu interface == */
 
-- 
1.6.2.5