** Tags removed: targetmilestone-inin16041
** Tags added: targetmilestone-inin1610
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https://bugs.launchpad.net/bugs/1541902
Title:
[FFe] Enable DDW on qemu aiming GPU passthrough perfor
This bug was fixed in the package qemu - 1:2.6.1+dfsg-0ubuntu2
---
qemu (1:2.6.1+dfsg-0ubuntu2) yakkety; urgency=medium
* Enable GPU Passthru for ppc64le (LP: #1541902)
- 0001-spapr-ensure-device-trees-are-always-associated-with.patch
- 0002-spapr_pci-Use-correct-DMA-LIOBN-w
Rebased on new 2.6.1.
** Patch added: "qemu_2.6.1+dfsg-0ubuntu2.debdiff"
https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1541902/+attachment/4742202/+files/qemu_2.6.1+dfsg-0ubuntu2.debdiff
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On Hold. 2.6.1 seems to be having issues landing. Removed sponsors and
will likely have to rebase again.
** Patch removed: "qemu_2.6.1+dfsg-0ubuntu2.debdiff"
https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1541902/+attachment/4742034/+files/qemu_2.6.1+dfsg-0ubuntu2.debdiff
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Rebase on 2.6.1. Re-ran qa-regression-testing libvirt/qemu.
** Patch added: "qemu_2.6.1+dfsg-0ubuntu2.debdiff"
https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1541902/+attachment/4742034/+files/qemu_2.6.1+dfsg-0ubuntu2.debdiff
** Changed in: qemu (Ubuntu)
Status: Triaged => In Pro
PPA rebased on 2.6.1. I'm running qa-regression-testing libvirt/qemu
tests on it now. Will upload debdiff for sponsorship once testing
complete.
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Reviewing the diff, the changes are all well-isolated to hw/ppc + target-ppc,
with the following exceptions:
- trace-events
- a few additions to generic headers
- 98295803b5a7929232fd92ecf17137c991273678,
fc8865d5c3e733c7b03070017778b31de22c329f,
94582d197efb7030f5d0dccab6165c28fb62d5b5 and
Thank you. Awaiting FFe approval now. But looks like I may need to
reapply on top of pending 2.6.1 that has an FFe in progress atm.
** Summary changed:
- Enable DDW on qemu aiming GPU passthrough performance on Ubuntu KVM
+ [FFe] Enable DDW on qemu aiming GPU passthrough performance on Ubuntu
No that seems to be the entirely wrong patchset.
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Title:
[FFE] Enable DDW on qemu aiming GPU passthrough performance on Ubuntu
KVM
To manage n
Happy to. I'll take the patchset from May 11,
Subject: [Qemu-devel] [for-2.7 PATCH v3 00/15] Core based CPU hotplug
for PowerPC sPAPR
Please shout if that is not the best one to use.
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h
Serge, we may want to pull them in and put in a PPA to see if IBM and
others can give the patchset a try. And ideally they'd report to
qemu-devel of their success/problems.
On Fri, May 13, 2016 at 8:17 AM, Serge Hallyn <1541...@bugs.launchpad.net>
wrote:
> Thanks, Ryan. We'll hold off until the
Thanks, Ryan. We'll hold off until the next round.
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Title:
[FFE] Enable DDW on qemu aiming GPU passthrough performance on Ubuntu
KVM
To manag
** Tags removed: bot-comment bugnameltc-136627 severity-high
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Title:
[FFE] Enable DDW on qemu aiming GPU passthrough performance on Ubuntu
KVM
I'd say we should hold off:
http://lists.nongnu.org/archive/html/qemu-devel/2016-04/msg03092.html
Includes this bit:
>> Why 64-bit math here, but 128 bit math in the region_add path?
>
> Hm. Good question. It has been copied from the common VFIO code where it was
since 7532d3cbf1, back those d
Seems like the upstream discussion is still unresolved in some areas
(and no patches are upstream in the git tree) and I don't understand
why.
I'm happy to pull these patches in now. Just as a sanity check,
@rharper - any definite badness that you see?
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(Make that @raharper ^ )
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Title:
[FFE] Enable DDW on qemu aiming GPU passthrough performance on Ubuntu
KVM
To manage notifications about this
** Changed in: qemu (Ubuntu)
Importance: Undecided => High
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Title:
[FFE] Enable DDW on qemu aiming GPU passthrough performance on Ubuntu
KVM
Dear Canonical,
A new patchset (version 15) was sent upstream, and already reviewed by
David Gibson.
http://lists.nongnu.org/archive/html/qemu-devel/2016-04/msg00360.html
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** Tags removed: targetmilestone-inin1604
** Tags added: targetmilestone-inin16041
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Title:
[FFE] Enable DDW on qemu aiming GPU passthrough perfor
I would like to justify this FFe as this is an important feature for
Ubuntu 16.04/ppc64el
[Technical Justification]
This feature enables GPU pass through to work decently on Ubuntu KVM. Without
this feature, GPU pass through works with a very bad performance, which is
completely unusable in prod
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