Options missing from the Wiki page for the conf files of VMs for GPU passthrough?

[Payden K Pringle]

https://pve.proxmox.com/wiki/Manual:_qm.conf

I've seen the following commands added to the cpu: options in threads where people have discussed GPU passthrough and the Nvidia Code 43 error issue:

• hv_time
• hv_vendor_id=null
• kvm=off

I don't see any of these options mentioned under the CPU options in the wiki article. I imagine it hasn't been updated, but I'm trying to see what is available for me to configure. What I've tried haven't fixed my issues with passing through a GT 710 GPU.

I had read these were options you could use in QEMU/KVM so presumably any options there would work in the conf file, but again, the wiki doesn't list them, so I can't be sure.

 

[t.lamprecht]

Hi,

I don't see any of these options mentioned under the CPU options in the wiki article.

The reason for this is that this ain't PVE VM configuration options but native QEMU/KVM ones (i.e., the thing which the PVE stack manages through the much easier configuration file)
But, you can set "kvm=off" with the "hidden=1" flag and hv_time and the like gets automatically set if you set the OS Version to Windows 8/2012/2012r2 (ostype: win8) or Windows 10/2016 (ostype: win10).

For documentation about your mentioned options see

man kvm

I had read these were options you could use in QEMU/KVM so presumably any options there would work in the conf file, but again, the wiki doesn't list them, so I can't be sure.

Yes, any option from QEMU/KVM can be used and directly passed to the VM via the "args" property, but not all are available as a "normal" config property.