Re: [coreboot] [Qemu-devel] Release plan for 0.12.0

[Anthony Liguori]

Stefan Reinauer wrote:
> Anthony Liguori wrote:
>   
> > Patrick Georgi wrote:
> >     
> > > With coreboot, seabios and Duet, it should be reasonably simple to
> > > provide a single BIOS image that selects (based on nvram - ie.
> > > configuration) which interface to provide: PCBIOS or UEFI.
> > >   
> > >       
> > That isn't terribly useful for QEMU because it implies that QEMU needs
> > to make the decision about which one to use.  If QEMU was capable of
> > making that decision without user intervention, then we could just
> > select to load PCBIOS or UEFI.
> >     
> Are you guys sure you want to go down that road rather than using an
> UEFI with a CSM?

We'll I've been advocating UEFI + CSM (based on SeaBIOS) so I'm not sure 
what you meant by 'that road'.

> This was attempted for Open Firmware and never happened during its life
> time. I doubt there is any incentive for vendors to ship devices without
> legacy option roms, especially since there is no advantage in doing so.
>   

We'll be stuck with legacy option roms for a long, long time.  But I 
also expect there will be a few devices out there that only provide EFI 
modules.

--
Regards,

Anthony Liguori