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Re: [Xen-devel] Re: [PATCH] Replace bios_relocate hook with bios_load ho

To: Keir Fraser <keir.xen@xxxxxxxxx>
Subject: Re: [Xen-devel] Re: [PATCH] Replace bios_relocate hook with bios_load hook in hvmloader
From: Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Date: Wed, 27 Jul 2011 09:09:20 +0100
Cc: Xen Devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Jordan Justen <jljusten@xxxxxxxxx>, Bei Guan <gbtju85@xxxxxxxxx>, Andrei Warkentin <andreiw@xxxxxxxxxxxx>
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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.  I'm told that an EFI framebuffer
could make PV graphics easier too, but I don't know anything about
Windows graphics drivers.

Also, eventually some server SKUs may go EFI-only, or we may need EFI
for system logo tests, but that seems unlikely to happen soon.

Tim.

-- 
Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Principal Software Engineer, Xen Platform Team
Citrix Systems UK Ltd.  (Company #02937203, SL9 0BG)

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