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[Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loadingoverhaul.
From: |
Gleb Natapov |
Subject: |
[Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loadingoverhaul. |
Date: |
Mon, 21 Dec 2009 21:48:41 +0200 |
On Mon, Dec 21, 2009 at 01:17:23PM -0600, Anthony Liguori wrote:
> >Does any OS (Windows?) depend on the tables the bios creates (e.g.
> >smbios)
> >for licensing? It would be ugly if Windows wants you to
> >re-activate after a reboot
> >following a migration to newer qemu version and therefore possibly
> >changed tables
> >due to newer bios.
>
> Yes, and this is a good point. ACPI table changes can absolutely
> cause re-activation. If we migrate from 0.12 -> 0.13 and make major
> changes to the ACPI tables in 0.13, then it's very likely that will
> result in problems for Windows guests.
>
On the contrary. This is very unlikely. Otherwise BIOS upgrade would
cause Windows reactivation.
> I really think that we need to snapshot the FW and store it with the
> guest state. If we switch all FW to be allocated with
> qemu_ram_alloc() and we use an id mechanism, then this will Just
> Work for savevm based snapshots and live migration. However, for it
> to work with -M pc-0.11 started from a cold boot, we need an nvram
> file. We probably want to make available versioned nvram files from
> each release too.
>
Yes, firmware should be part of machine description.
--
Gleb.
- [Qemu-devel] Re: Re: [SeaBIOS] [PATCH 0/8] option rom loadingoverhaul., (continued)
- [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
- [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loadingoverhaul., Gleb Natapov, 2009/12/21
- [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loadingoverhaul., Sebastian Herbszt, 2009/12/21
- [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loadingoverhaul., Gleb Natapov, 2009/12/22
- [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loadingoverhaul., Anthony Liguori, 2009/12/22
- [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loadingoverhaul.,
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
- [Qemu-devel] Re: Re: [SeaBIOS] [PATCH 0/8] option rom loadingoverhaul., Sebastian Herbszt, 2009/12/22
- [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul., Gleb Natapov, 2009/12/21
- [Qemu-devel] Re: [SeaBIOS] [PATCH 0/8] option rom loading overhaul., Michael S. Tsirkin, 2009/12/21