At 09:35 +0100 on 27 Jul (1311759322), Keir Fraser wrote:
> On 27/07/2011 09:09, "Tim Deegan" <Tim.Deegan@xxxxxxxxxx> wrote:
>
> > At 08:34 +0100 on 27 Jul (1311755670), Keir Fraser wrote:
> >> By the way, what are the advantages for us of supporting OVMF? I know it
> >> gets us the UEFI support tickybox, but for me that begs the same question.
> >> Why is it useful?
> >
> > When Windows boots from UEFI it can load just its system-disk driver via
> > the firmware and the rest of the OS using its own driver; that ought to
> > make Windows boot times much faster.
>
> That's interesting. Why can't it do that with legacy firmware? Does it need
> to keep the legacy BIOS alive for a while and hence can't use its own
> drivers, or something like that?
I don't think it's "can't" so much as "doesn't". :) We'd get much of
the same speedup from PV drivers in the ROMBIOS, of course.
Oh, and I think Mac OS X relies on EFI to boot, doesn't it? Among other
things, of course.
Tim.
--
Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Principal Software Engineer, Xen Platform Team
Citrix Systems UK Ltd. (Company #02937203, SL9 0BG)
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