Re: [Qemu-devel] OVMF Google Summer of Code ideas

[Gleb Natapov]

On Tue, Mar 08, 2011 at 07:18:09AM +0000, Stefan Hajnoczi wrote:
> > Regarding the non-volatile variables issue, I have been trying to
> > develop a proposal for addressing this with a change to QEMU's
> > hardware support of bios.bin.  But, I don't have the suggestion (or
> > implementation) ready at this time.
> 
> Sounds like something to keep discussing with the QEMU and SeaBIOS
> communities.  Gleb Natapov and Kevin O'Connor have done a lot of the
> recent BIOS and firmware interface work.  I think persistent CMOS has
> come up several times and might be similar to non-volatile UEFI
> storage.
> 
What kind of information OVMF stores on a persistent storage? CMOS
memory is less them 512 byte IIRC and this may not be enough. What OVMF
uses on real HW for non-volatile storage?

--
                        Gleb.