[SeaBIOS] [RFC] paravirt: Only enable sercon in NOGRAPHIC mode if no other console specified

[Gerd Hoffmann]

On Fri, Nov 10, 2017 at 12:24:38PM -0500, Kevin O'Connor wrote:
> Signed-off-by: Kevin O'Connor <kevin at koconnor.net>
> ---
> 
> I wonder if it would be better to only enable sercon with 0x3f8 in the
> nographic case if QEMU has neither specified a sercon-port and has not
> requested sgabios to be loaded.  This is just an idea.

Looks good to me.

cheers,
  Gerd