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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 <amit.shah@redhat.com> CC: Christian Borntraeger <borntraeger@de.ibm.com> CC: linuxppc-dev@ozlabs.org CC: Kusanagi Kouichi <slash@ac.auone-net.jp> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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1 changed files with 12 additions and 1 deletions
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@ -1194,12 +1194,23 @@ static void handle_control_message(struct ports_device *portdev,
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* have to notify the host first.
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* have to notify the host first.
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*/
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*/
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break;
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break;
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case VIRTIO_CONSOLE_RESIZE:
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case VIRTIO_CONSOLE_RESIZE: {
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struct {
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__u16 rows;
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__u16 cols;
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} size;
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if (!is_console_port(port))
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if (!is_console_port(port))
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break;
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break;
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memcpy(&size, buf->buf + buf->offset + sizeof(*cpkt),
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sizeof(size));
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set_console_size(port, size.rows, size.cols);
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port->cons.hvc->irq_requested = 1;
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port->cons.hvc->irq_requested = 1;
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resize_console(port);
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resize_console(port);
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break;
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break;
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}
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case VIRTIO_CONSOLE_PORT_OPEN:
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case VIRTIO_CONSOLE_PORT_OPEN:
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port->host_connected = cpkt->value;
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port->host_connected = cpkt->value;
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wake_up_interruptible(&port->waitqueue);
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wake_up_interruptible(&port->waitqueue);
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