On Ubuntu 19.10 as a host, I'm trying to do GPU passthrough to Windows 10 as guest. I successfully isolated my GTX 1060 and passed to the insides of a VM in virt-manager (libvirt doc) (home page).
When I try to install Windows, it first copies the files during the installation process. Then it restarts the VM, and when the Windows continues the installation process, Ubuntu freezes forever. I rebooted Ubuntu, tried again, and the same happens at the same spot.
You can see, in details, all I did to enable passthrough here: KVM GPU passthrough: group 15 is not viable. Please ensure all devices within the iommu_group are bound to their vfio bus driver.'
But, in short: I edited
/etc/modules to include all the 4 pci devices on my iommu group 15. However, only the GTX 1060 appeared as being used by
vfio-pci when I ran
lspci -nnv after a reboot. So I manually unbinded them and inserted into vfio-pci with a little script I wrote:
echo -n "0000:07:00.1" > /sys/bus/pci/drivers/snd_hda_intel/unbind echo -n "0000:07:00.1" > /sys/bus/pci/drivers/vfio-pci/bind echo -n "0000:07:00.2" > /sys/bus/pci/drivers/xhci_hcd/unbind echo -n "0000:07:00.2" > /sys/bus/pci/drivers/vfio-pci/bind echo -n "0000:07:00.3" > /sys/bus/pci/drivers/nvidia-gpu/unbind echo -n "0000:07:00.3" > /sys/bus/pci/drivers/vfio-pci/bind
after that, I can sucessfully start my Windows 10 VM installation, but it freezes during installation. Is it possibly related to what I did?
PS: I cannot simply block the noveau driver because the host's GPU is also from NVIDIA. So I need to manually unbind each device.