PCI passthrough for Folding@Home VM

[starkruzr]

Hi folks,

I have an AMD GPU I'm trying to pass through to a VM to use for Folding@Home. I've done this so far:

amd_iommu=on in the GRUB configuration

added these to /etc/modules:

vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd

update-initramfs -u -k all

rebooted.

The problem is I don't see the GPU in lspci. But if I do a modprobe of amdgpu in the Proxmox host, it loads. Even after doing that, though, I still don't see something that looks like another display controller in lspci. I had this card working fine in an old HP workstation with the same two six-pin power leads connected, so I don't think it's a "you didn't give it enough juice" issue. What am I doing wrong?

 

[wolfgang]

Hi,

did you also update the grub?
And did you blacklist the kernel module?

 

[starkruzr]

Yes. I still don't see the card in lspci on the host.