On Mon, Nov 8, 2021 at 5:47 PM Gilboa Davara <gilb...@gmail.com> wrote:
>
> Hello all,
>
> I'm setting up a fairly (?) complex oVirt over Gluster setup built around 3 
> Xeon servers-turned-into-workstations, each doubling as oVirt node + one 
> primary Fedora VM w/ a dedicated passthrough GPU (+audio and a couple of USB 
> root devices).
> One of the servers seems to have some weird issue w/ the passthrough nVidia 
> GPU that seems to require me to edit the VM iommu (1) and passthrough device 
> (2) command line.
> I tried using the qemu-cmdline addon to add the missing parameters, but it 
> seems that qemu treats the added parameters as an additional device / iommu 
> instead of editing the existing parameters.
>
> So:
> 1. How can I view the VM qemu command line?

less /var/log/libvirt/qemu/vm-name.log

> 2. Can I somehow manually edit the qemu command line, either directly or by 
> somehow adding parameters in the HE XML file?

I think this should be possible via vdsm hook, but hooks are bad.
Can you explain what do you want to change?

Nir
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