[Qemu-devel] Re: [PATCH] virtio-serial: don't set MULTIPORT for 1 port dev

[Gerd Hoffmann]

On 02/12/10 15:23, Amit Shah wrote:
> On (Fri) Feb 12 2010 [15:42:14], Michael S. Tsirkin wrote:
> > Since commit 98b19252cf1bd97c54bc4613f3537c5ec0aae263, all
> > serial devices declare MULTIPORT feature.
> > To allow 0.12 compatibility, we should clear this when
> > max_nr_ports is 1.
>
> In addition to this, setting max_nr_ports to 1 is needed when -M 0.12 is
> selected.

Indeed.

> However, is this the only way to do it? Gerd?

Is there a qdev property for max_nr_ports?  Then simply adding a compat 
property will do the trick.

cheers,
  Gerd