[nova][CI] GPUs in the gate

Sylvain Bauza sylvain.bauza at gmail.com
Thu May 9 09:28:42 UTC 2019

Le mer. 8 mai 2019 à 20:27, Artom Lifshitz <alifshit at redhat.com> a écrit :

> On Wed, May 8, 2019 at 9:30 AM Jeremy Stanley <fungi at yuggoth.org> wrote:
> > Long shot, but since you just need the feature provided and not the
> > performance it usually implies, are there maybe any open source
> > emulators which provide the same instruction set for conformance
> > testing purposes?
> Something like that exists for network cards. It's called netdevsim
> [1], and it's been mentioned in the SRIOV live migration spec [2].
> However to my knowledge nothing like that exists for GPUs.
libvirt provides us a way to fake mediated devices attached to instances
but we still need to lookup sysfs for either knowing all the physical GPUs
or creating a new mdev so that's where it's not possibleto have an emulator


> https://www.phoronix.com/scan.php?page=news_item&px=Linux-4.16-Networking
> [2]
> https://specs.openstack.org/openstack/nova-specs/specs/train/approved/libvirt-neutron-sriov-livemigration.html#testing
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