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From c101ff585d5b156a1f3461015a9acd73f15a45f6 Mon Sep 17 00:00:00 2001
From: Amit Shah <amit.shah@redhat.com>
Date: Wed, 20 Jan 2010 00:36:55 +0530
Subject: [PATCH 5/9] virtio-serial-bus: Add ability to hot-unplug ports

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.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 6d69c56..037864f 100644
--- a/hw/virtio-serial-bus.c
+++ b/hw/virtio-serial-bus.c
@@ -517,6 +517,8 @@ 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 28ea7da..f297b00 100644
--- a/hw/virtio-serial.h
+++ b/hw/virtio-serial.h
@@ -51,6 +51,7 @@ struct virtio_console_control {
 #define VIRTIO_CONSOLE_RESIZE		2
 #define VIRTIO_CONSOLE_PORT_OPEN	3
 #define VIRTIO_CONSOLE_PORT_NAME	4
+#define VIRTIO_CONSOLE_PORT_REMOVE	5
 
 /* == In-qemu interface == */
 
-- 
1.6.2.5