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From: Anthony Liguori <anthony@codemonkey.ws>
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Date: Mon, 10 Jun 2013 14:50:00 -0500
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Subject: Re: [Qemu-devel] [PATCH] qemu: piix: PCI bridge ACPI hotplug support
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To: Peter Maydell <peter.maydell@linaro.org>
Cc: "Michael S. Tsirkin" <mst@redhat.com>, Jordan Justen <jljusten@gmail.com>, seabios@seabios.org, qemu-devel@nongnu.org, Kevin O'Connor <kevin@koconnor.net>, Gerd Hoffmann <kraxel@redhat.com>, Laszlo Ersek <lersek@redhat.com>, David Woodhouse <dwmw2@infradead.org>

Peter Maydell <peter.maydell@linaro.org> writes:

> On 10 June 2013 19:58, Anthony Liguori <anthony@codemonkey.ws> wrote:
>> We only care about supporting one version of SeaBIOS.  SeaBIOS should
>> only care about supporting one version of QEMU.  We're not asking it to
>> support multiple versions.
>
> I'm confused, how does this work in cross-version migration?
> The BIOS is part of the guest, so I'd expect QEMU would
> have to support whatever it happens to be. (Plus how do
> you enforce the version-dependency?)

The BIOS is migrated but reset upon reboot.

Regards,

Anthony Liguori

>
> thanks
> -- PMM