Le mer. 8 mai 2019 à 20:27, Artom Lifshitz alifshit@redhat.com a écrit :
On Wed, May 8, 2019 at 9:30 AM Jeremy Stanley fungi@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 AFAICU.
-Sylvain
[1]
https://www.phoronix.com/scan.php?page=news_item&px=Linux-4.16-Networkin... [2] https://specs.openstack.org/openstack/nova-specs/specs/train/approved/libvir...