[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is
From: |
Cornelia Huck |
Subject: |
Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available |
Date: |
Mon, 25 Sep 2017 13:45:32 +0200 |
On Mon, 25 Sep 2017 12:12:49 +0200
Christian Borntraeger <address@hidden> wrote:
> On 09/25/2017 12:07 PM, Cornelia Huck wrote:
> > On Fri, 22 Sep 2017 16:27:00 +0200
> > Halil Pasic <address@hidden> 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 think we do not even need a matrix, a minimum level will suffice because...
> >
> > I don't think we really ever had a setup that worked out of the box
>
> exactly: ...it never worked until 2.10 and we do not have libvirt support yet.
> Now with the fix 2.10 will also not work, so I think its fair to say
>
> PCI passthrough via VFIO will be supported for
> - KVM: host kernel >= 4.13
> - TCG: TBD
> - QEMU >= 2.11
> - libvirt TBD
Make that zpci-per-se, no?
with KVM: host kernel >= 4.13 && QEMU >= 2.11
with TCG: tbd, I don't think anybody has time to wire this up for 2.11
Apropos libvirt: How will it determine whether zpci should be
supported? There are some old QEMU + KVM combinations out there that
will have a phb (but not be usable by stock Linux guests as the feature
bits are missing). Version fence? Check for cpu feature support?
- [Qemu-devel] [PATCH/RFC 0/3] ais fixups for 2.11, Christian Borntraeger, 2017/09/22
- [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Christian Borntraeger, 2017/09/22
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Pierre Morel, 2017/09/22
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Christian Borntraeger, 2017/09/22
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Cornelia Huck, 2017/09/22
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Pierre Morel, 2017/09/22
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Christian Borntraeger, 2017/09/22
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Halil Pasic, 2017/09/22
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Cornelia Huck, 2017/09/25
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Christian Borntraeger, 2017/09/25
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available,
Cornelia Huck <=
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Christian Borntraeger, 2017/09/25
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Yi Min Zhao, 2017/09/26
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Boris Fiuczynski, 2017/09/26
- Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, Pierre Morel, 2017/09/22
Re: [Qemu-devel] [PATCH/RFC 2/3] s390x/ais: enable ais when migration is available, David Hildenbrand, 2017/09/26
[Qemu-devel] [PATCH/RFC 1/3] s390x/ais: disable ais facility as it is broken, Christian Borntraeger, 2017/09/22