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Re: [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul.
From: |
Gleb Natapov |
Subject: |
Re: [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul. |
Date: |
Mon, 21 Dec 2009 09:32:04 +0200 |
On Sun, Dec 20, 2009 at 08:59:48PM -0500, Kevin O'Connor wrote:
> On Sun, Dec 20, 2009 at 11:48:20AM -0600, Anthony Liguori wrote:
> > I think we have two ways to view firmware. The first would be to treat
> > guest firmware as part of the guest. What that means it that we should
> > store all firmware in an nvram file, migrate the nvram file during
> > migration
> [...]
> > The other option would be to treat guest firmware as part of the machine
> > state.
>
> How about mixing the two? Store the firmware in an nvram file and
> migrate it during migration, but clear the nvram and reload the
> firmware on each start-up and qemu reset.
>
That's precisely what I propose.
> [...]
> >The second mechanism is
> > appealing from an ease of use perspective but the semantics of doing a
> > live migration and getting a different firmware after reset/shutdown is
> > rather scary from a support perspective.
>
> I'm not sure I see the problem with upgrading firmware on a reboot. I
> think it would be a pretty severe bug if a new firmware broke the OS
> or if an OS was heavily dependent on a specific firmware across
> reboots. After all, normal users update their bios and reboot into
> pre-existing OSs all the time.
>
Exactly.
--
Gleb.
- [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul., (continued)
- [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul., Gleb Natapov, 2009/12/20
- [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul., Anthony Liguori, 2009/12/20
- [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul., Gleb Natapov, 2009/12/20
- [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul., Anthony Liguori, 2009/12/20
- [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul., Gleb Natapov, 2009/12/20
- Re: [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul., Blue Swirl, 2009/12/20
- Re: [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul., Gleb Natapov, 2009/12/20
- Re: [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul., Blue Swirl, 2009/12/20
- [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul., Anthony Liguori, 2009/12/20
- Re: [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul., Kevin O'Connor, 2009/12/20
- Re: [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul.,
Gleb Natapov <=
- Re: [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul., Anthony Liguori, 2009/12/21
- Re: [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul., Gleb Natapov, 2009/12/21
- Re: [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul., Anthony Liguori, 2009/12/21
- Re: [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul., Gleb Natapov, 2009/12/21
- [Qemu-devel] Re: Re: [SeaBIOS] [PATCH 0/8] option rom loadingoverhaul., Sebastian Herbszt, 2009/12/21
- [Qemu-devel] Re: Re: [SeaBIOS] [PATCH 0/8] option rom loadingoverhaul., Gleb Natapov, 2009/12/21
- [Qemu-devel] Re: Re: [SeaBIOS] [PATCH 0/8] option rom loadingoverhaul., Sebastian Herbszt, 2009/12/21
- [Qemu-devel] Re: Re: [SeaBIOS] [PATCH 0/8] option rom loadingoverhaul., Gleb Natapov, 2009/12/21
- [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loadingoverhaul., Anthony Liguori, 2009/12/21
- [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loadingoverhaul., Sebastian Herbszt, 2009/12/21