Re: [Qemu-devel] [PATCH] virtio-serial: fix ANY_LAYOUT

[Amit Shah <amit.shah@redhat.com>]

On (Mon) 27 Jul 2015 [09:37:47], Michael S. Tsirkin wrote:
> Don't assume a specific layout for control messages.
> Required by virtio 1.
> 
> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

Reviewed-by: Amit Shah <amit.shah@redhat.com>

> ---
>  hw/char/virtio-serial-bus.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/hw/char/virtio-serial-bus.c b/hw/char/virtio-serial-bus.c
> index 78c73e5..16de50f 100644
> --- a/hw/char/virtio-serial-bus.c
> +++ b/hw/char/virtio-serial-bus.c
> @@ -195,7 +195,8 @@ static size_t send_control_msg(VirtIOSerial *vser, void *buf, size_t len)
>          return 0;
>      }
>  
> -    memcpy(elem.in_sg[0].iov_base, buf, len);
> +    /* TODO: detect a buffer that's too short, set NEEDS_RESET */
> +    iov_from_buf(&elem.in_sg, buf, len);

Not sure why NEEDS_RESET -- anyhow, you planning on doing this?


		Amit