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>From 3baf76e384c04f58f032632c078860d66c8c9db3 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Fri, 18 Mar 2011 15:30:45 +0100
Subject: [PATCH 16/17] virtio-console: notify backend of guest open / close

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 hw/virtio-console.c |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/hw/virtio-console.c b/hw/virtio-console.c
index eecbdf7..828a1a3 100644
--- a/hw/virtio-console.c
+++ b/hw/virtio-console.c
@@ -37,6 +37,22 @@ static ssize_t flush_buf(VirtIOSerialPort *port, const uint8_t *buf, size_t len)
     return qemu_chr_write(vcon->chr, buf, len);
 }
 
+/* Callback function that's called when the guest opens the port */
+static void guest_open(VirtIOSerialPort *port)
+{
+    VirtConsole *vcon = DO_UPCAST(VirtConsole, port, port);
+
+    qemu_chr_guest_open(vcon->chr);
+}
+
+/* Callback function that's called when the guest closes the port */
+static void guest_close(VirtIOSerialPort *port)
+{
+    VirtConsole *vcon = DO_UPCAST(VirtConsole, port, port);
+
+    qemu_chr_guest_close(vcon->chr);
+}
+
 /* Readiness of the guest to accept data on a port */
 static int chr_can_read(void *opaque)
 {
@@ -81,6 +97,8 @@ static int generic_port_init(VirtConsole *vcon, VirtIOSerialDevice *dev)
     if (vcon->chr) {
         qemu_chr_add_handlers(vcon->chr, &chr_handlers, vcon);
         vcon->port.info->have_data = flush_buf;
+        vcon->port.info->guest_open = guest_open;
+        vcon->port.info->guest_close = guest_close;
     }
     return 0;
 }
-- 
1.7.3.2