Im able to get the vm to see the GPU, its saying Error 43: Driver failed to load
>From what Im finding out I should be able to edit the XML file and trick the NVIDIA drivers into not knowing its a part of a VM. First you have to setup the libvirt user: saslpasswd2 -f /etc/libvirt/passwd.db -c root then you edit the xml: cd /etc/libvirt/qemu virsh edit Win-A Add kvm hidden state and such as shown here: https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF#Troubleshooting Then I try to save it but then it complains about: Requested operation is not valid: domain has assigned non-USB host devices This is as far as I have made it. On Sat, Mar 16, 2019 at 12:43 PM Wesley Stewart <[email protected]> wrote: > I actually use an oVirt VM as my desktop at home. Why? Because I can and > I didn't want to have to buy another box for my desktop. However there are > a few caveats to this and some lessons I learned. > > The consumer grade GTX cards are going to have issues being passed > through. NVIDIA blocks this in their drivers and RedHat honors NVIDIA's > requirements for this. You can enter an agreement with NVIDIA, which I am > sure costs some money somewhere, to get special drivers. Or you can use > their enterprise Quadro cards, however I tested a P2000 and could not get > it to work on oVIrt. But I did not try very hard. > > At home, I am using an AMD Radeon RX 480/580. AMD doesn't care if you > pass it through and it works almost right out of the box. You just want to > make sure to blacklist the AMD drivers for the host, and put them in the > PCI-Stubs group. It's really easy with some basic bash/terminal knowledge: > > https://ovirt.org/develop/release-management/features/virt/hostdev-passthrough.html > Check the physical GPU portion. > > You can, HOWEVER, trick the VM into not thinking it's a VM in KVM and > QEMU. To prove this, I built a proxmox box at work to test it and I was > able to successfully pass through a GTX 1060 without too much trouble. I > Have some notes here: > > https://docs.google.com/document/d/1vlOIbJ4iXE7ypdSJ0OWQZfgcG9dEx2_PxXh6oRjl878/edit?usp=sharing > However these are pretty rough notes. I just wanted to prove it could be > done. > > For oVirt a lot of the QEMU/KVM settings and commands are going to be > stored in databases and files. and I had trouble getting these to pick up > on the oVirt side. I even tried creating a VDSM hook, as mentioned in this > thread: > https://lists.ovirt.org/pipermail/users/2017-March/080905.html > But I never got it working. > > I am definitely no expert, but I have done a lot of tinkering with this. > But you will get pushback from oVirt/Redhat as this is not officially > supported. If you want it to work with consumer grade cards, use AMD. If > you want to do it "right" you will have to buy the enterprise quadro > cards. But these get quite pricey. > > On Sat, Mar 16, 2019 at 12:15 PM Darin Schmidt <[email protected]> > wrote: > >> If I'm reading through the documents correctly, you can't use consumer >> grade gpus such as gtx 1080's and assign them to a VM? >> >> I'm trying to do something similar to how Linus used untaid to build >> several gaming machines from one. >> >> Any help would be appreciated. >> >> Thanks. >> _______________________________________________ >> Users mailing list -- [email protected] >> To unsubscribe send an email to [email protected] >> Privacy Statement: https://www.ovirt.org/site/privacy-policy/ >> oVirt Code of Conduct: >> https://www.ovirt.org/community/about/community-guidelines/ >> List Archives: >> https://lists.ovirt.org/archives/list/[email protected]/message/DJBX3NMFJRP3L5DRFMJAD7FWA3WAX4PM/ >> >
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