[ovirt-users] Re: Viewing and hopefully, modifying the VM's qemu command line
On Mon, Nov 8, 2021 at 5:47 PM Gilboa Davara <gilboad(a)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