Re: [Qemu-devel] [PATCH RFC v6 15/20] virtio-net: no writeable mac for virtio-1

[Stefan Hajnoczi <stefanha@gmail.com>]

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On Thu, Dec 11, 2014 at 02:25:17PM +0100, Cornelia Huck wrote:
> Devices operating as virtio 1.0 may not allow writes to the mac
> address in config space.
> 
> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
> ---
>  hw/net/virtio-net.c |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
> index d6d1b98..ebbea60 100644
> --- a/hw/net/virtio-net.c
> +++ b/hw/net/virtio-net.c
> @@ -87,6 +87,7 @@ static void virtio_net_set_config(VirtIODevice *vdev, const uint8_t *config)
>      memcpy(&netcfg, config, n->config_size);
>  
>      if (!virtio_has_feature(vdev, VIRTIO_NET_F_CTRL_MAC_ADDR) &&

I don't see VIRTIO_NET_F_CTRL_MAC_ADDR (23) in the VIRTIO 1.0 "5.1.3.1
Legacy Interface: Feature bits" section.  Should it be there just so
people don't try to reuse bit 23 in the future?

The patch itself:
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

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