From 8345adbf96fc1bde7d9846aadbe5af9b2ae90882 Mon Sep 17 00:00:00 2001 From: Amit Shah Date: Thu, 6 May 2010 02:05:09 +0530 Subject: [PATCH] virtio: console: Accept console size along with resize control message 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 CC: Christian Borntraeger CC: linuxppc-dev@ozlabs.org CC: Kusanagi Kouichi Signed-off-by: Rusty Russell --- drivers/char/virtio_console.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index f1fe11a344e9..458d907e3621 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);