https://m.habr.com/ru/post/437598/
Для обхода ошибки 43
Способ номер 1:
args: -cpu 'host,+kvm_pv_unhalt,+kvm_pv_eoi,hv_vendor_id=willitwork,kvm=off'
Способ номер 2:
Написал француз в комментарии к моему видео на ютуб
We don't need these arguments anymore. In fact I think the key is to force the server to boot with the IGPU (in the bios) and to exclude the Nvidia GPU in the /etc/modprobe.d/nvidia.conf file with the following lines:
echo "softdep nouveau pre: vfio-pci" » /etc/modprobe.d/nvidia.conf
echo "softdep nvidia pre: vfio-pci" » /etc/modprobe.d/nvidia.conf
echo "softdep nvidia* pre: vfio-pci" » /etc/modprobe.d/nvidia.conf
So I have my Windows and Linux VMs booting with the Nvidia GPU in Q35/OVMF