[PATCH 3/3] virtio: console: Accept console size along with resize control message
Amit Shah
amit.shah at redhat.com
Thu May 6 06:35:09 EST 2010
The VIRTIO_CONSOLE_RESIZE control message sent to us by the host now
contains the new {rows, cols} values for the console. This ensures each
console port gets its own size, and we don't depend on the config-space
rows and cols values at all now.
Signed-off-by: Amit Shah <amit.shah at redhat.com>
CC: Christian Borntraeger <borntraeger at de.ibm.com>
CC: linuxppc-dev at ozlabs.org
CC: Kusanagi Kouichi <slash at ac.auone-net.jp>
---
drivers/char/virtio_console.c | 13 ++++++++++++-
1 files changed, 12 insertions(+), 1 deletions(-)
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index ccfe68a..5cab839 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1194,12 +1194,23 @@ static void handle_control_message(struct ports_device *portdev,
* have to notify the host first.
*/
break;
- case VIRTIO_CONSOLE_RESIZE:
+ case VIRTIO_CONSOLE_RESIZE: {
+ struct {
+ __u16 rows;
+ __u16 cols;
+ } size;
+
if (!is_console_port(port))
break;
+
+ memcpy(&size, buf->buf + buf->offset + sizeof(*cpkt),
+ sizeof(size));
+ set_console_size(port, size.rows, size.cols);
+
port->cons.hvc->irq_requested = 1;
resize_console(port);
break;
+ }
case VIRTIO_CONSOLE_PORT_OPEN:
port->host_connected = cpkt->value;
wake_up_interruptible(&port->waitqueue);
--
1.6.2.5
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