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Date: Mon, 25 Sep 2017 12:07:45 +0200
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Subject: Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when
 migration is available
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To: Halil Pasic <pasic@linux.vnet.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>, Pierre Morel <pmorel@linux.vnet.ibm.com>, Yi Min Zhao <zyimin@linux.vnet.ibm.com>, David Hildenbrand <david@redhat.com>, qemu-devel <qemu-devel@nongnu.org>, Alexander Graf <agraf@suse.de>, "Jason J . Herne" <jjherne@linux.vnet.ibm.com>, Richard Henderson <rth@twiddle.net>

On Fri, 22 Sep 2017 16:27:00 +0200
Halil Pasic <pasic@linux.vnet.ibm.com> wrote:

> One thing I would find very helpful is what do we expect to work and not
> work for which version. Kind of a matrix. For instance should vfio pci
> work for versions prior 2.11. I think in the not so distant past we
> changed how SIC works (so it complains when we don't have ais).

A matrix sounds like a good idea.

I don't think we really ever had a setup that worked out of the box
for a Linux guest prior to 2.10 anyway. For added fun, it also depends
on the host kernel. And tcg won't work at all due to the pci
instruction not yet being wired up.

> Btw nimm/dimm is simm/nimm. And I would really like to hear something
> form the original author(s) too.

Seconded.