---
tags: Hypervisor
---
# Ubuntu KVM Passthrough (Access GPUs in Guest OS) {On Going still unsccessful}
###### tags: NVIDIA, KVM, Passthrough KVM, Ubuntu, Hypervisor

## HW Equipment
SCB 1921
Xeon 6264
16GB*24

Video Link: https://www.youtube.com/watch?v=8o5DOf-_w-w
### Super user and update the apt

sudo -i
sudo apt-get update
sudo apt-get upgrade

### Edit the grub setting

sudo gedit /etc/default/grub

### Update existing line with this line

GRUB_CMDLINE_LINUX_DEFAULT="quite splash intel_immou=on rd.driver.pre=vfio-pci"

### Update the grub

update-grub

### Add the modules in gedit

sudo gedit /etc/modules

### Add these parameters in the file

vfio
vfio_iommu_type1
vfio_pci
kvm
kvm_intel

### Create a small script, I've named mine /sbin/vfio-pci-override-vga.sh

sudo gedit /sbin/vfio-pci-override-vga.sh

### and write
http://vfio.blogspot.com/2015

#!/bin/sh

for i in $(find /sys/devices/pci* -name boot_vga); do
        if [ $(cat $i) -eq 0 ]; then
                GPU=$(dirname $i)
                AUDIO=$(echo $GPU | sed -e "s/0$/1/")
                echo "vfio-pci" > $GPU/driver_override
                if [ -d $AUDIO ]; then
                        echo "vfio-pci" > $AUDIO/driver_override
                fi
        fi
done

modprobe -i vfio-pci

### make it executable

chmod 755 /sbin/vfio-pci-override-vga.sh

### create another conf file

sudo gedit /etc/modprobe.d/local.conf

### update the local.conf file with

install vfio-pci /sbin/vfio-pci-override-vga.sh

### edit the initramfs-tools/modules file

sudo gedit /etc/initramfs-tools/modules

### update the initramfs-tools/modules with

install_items+="/sbin/vfio-pci-override-vga.sh /usr/bin/find /usr/bin/dirname"

### update the initramfs

update-initramfs -u

### Install qemu and virt manager

sudo apt install qemu qemu-utils virt-manager ovmf
reboot

### Keep this link open
https://libvirt.org/formatdomain.html
>Domain XML Format >> Hypervisor Features
### open virt XML code

sudo virhsh edit <Machine name e.g. Ubuntu>

Add this line after
<kvm>
<hidden state='on'/>
</kvm>

## Errrrroooorrrrrsssss

Solved This issue removing the NIC Cards.

## When we Successfully bind the passthough PCI device and run the VM again its show these issues##