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Re: [Qemu-devel] [PATCH 2/4] pc/q35: drop compatiility with old bios typ
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From: |
Markus Armbruster |
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Subject: |
Re: [Qemu-devel] [PATCH 2/4] pc/q35: drop compatiility with old bios types |
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Date: |
Mon, 15 Feb 2016 15:16:42 +0100 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) |
Gerd Hoffmann <address@hidden> writes:
> On So, 2016-02-07 at 12:29 +0200, Michael S. Tsirkin wrote:
>> We don't ship bios without support for loading ACPI anymore, and old q35
>> machine types don't allow migrating such bios. Drop it, as well as
>> has_*mr flags that are there for migration compatibility.
>
> Wouldn't that break migration between 2.5 and 2.6 with -M q35-1.6 ?
> It's also a guest-visible change as acpi tables change ...
Madness.
> I'm all for cleaning up this old cruft, but I think it would be cleaner
> to just drop the old (pre-migration support) q35 machine types instead
> of changing them in subtle ways ...
Yup.