Windows 10 OVMF VM qemun

sudo nano /etc/default/grub

amd_iommu=on iommu=pt

#!/bin/bash
shopt -s nullglob
for g in $(find /sys/kernel/iommu_groups/* -maxdepth 0 -type d | sort -V); do
    echo "IOMMU Group ${g##*/}:"
    or d in $g/devices/*; do
        echo -e "\t$(lspci -nns ${d##*/})"
    done;
done;

IOMMU Group 17:
28:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP108 [GeForce GT 1030] 
[10de:1d01]
 (rev a1)
28:00.1 Audio device [0403]: NVIDIA Corporation GP108 High Definition Audio Controller 
[10de:0fb8]
 (rev a1)
                  

sudo nano /etc/modprobe.d/vfio.conf

options vfio-pci ids=10de:1d01,10de:0fb8
softdep nvidia pre: vfio-pci

sudo grub-mkconfig -o /boot/grub/grub.cfg
reboot

sudo pacman -Sy mkinitcpio
sudo pacman -Rc eos-dracut dracut
sudo pacman -S linux
sudo mkinitcpio -P
sudo grub-mkconfig -o /boot/grub/grub.cfg
reboot

sudo dmesg | grep -i vfio

[    4.543503] VFIO - User Level meta-driver version: 0.3
[    4.559250] vfio-pci 0000:28:00.0: vgaarb: VGA decodes changed: olddecodes=io+mem,decodes=io+mem:owns=none
[    4.559412] vfio_pci: add [10de:1d01[ffffffff:ffffffff]] class 0x000000/00000000
[    4.606439] vfio_pci: add [10de:0fb8[ffffffff:ffffffff]] class 0x000000/00000000
[    7.194573] NVRM: GPU 0000:28:00.0 is already bound to vfio-pci.
[   39.741807] vfio-pci 0000:28:00.1: enabling device (0000 -> 0002)