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Nvidia GTX GPU Passthrough with QEMU

I. Installation

1. Host preparation

Install your server with Ubuntu 16.04 LTS (with Ubuntu default Kernel)

i. Update system
# sudo apt-get update
# sudo apt-get dist-upgrade
# sudo apt-get install iptables
ii. Enable firewall
sudo iptables -A INPUT -i lo -j ACCEPT
sudo iptables -A INPUT -p icmp -j ACCEPT
sudo iptables -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
sudo iptables -A INPUT -s MY.OFFICE.IP.ADDR -j ACCEPT
sudo iptables -P INPUT DROP
sudo iptables -P FORWARD DROP
sudo ip6tables -A INPUT -m conntrack --ctstate RELATED,ESTABLISHED -j ACCEPT
sudo ip6tables -P INPUT DROP
sudo ip6tables -P FORWARD DROP

sudo apt-get install iptables-persistent
iii. intel_iommu

# sudo vi /etc/default/grub

Append intel_iommu=on to GRUB_CMDLINE_LINUX_DEFAULT variable:

GRUB_CMDLINE_LINUX_DEFAULT="[...] intel_iommu=on"

iv. loading modules at boot

# sudo vi /etc/modules

vfio
vfio_iommu_type1
vfio_pci
vfio_virqfd
kvm
kvm_intel

# sudo sh -c 'echo "options kvm ignore_msrs=1" > /etc/modprobe.d/kvm.conf'

v. disabling nvidia driver

# sudo sh -c 'echo -e "\nblacklist nouveau" >> /etc/modprobe.d/blacklist.conf'

2. GPU cards

i. Finding NVIDIA devices ids

# sudo lspci -nn -d 10de:

02:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP104 [GeForce GTX 1080] [10de:1b80] (rev a1)
02:00.1 Audio device [0403]: NVIDIA Corporation GP104 High Definition Audio Controller [10de:10f0] (rev a1)
03:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP104 [GeForce GTX 1080] [10de:1b80] (rev a1)
03:00.1 Audio device [0403]: NVIDIA Corporation GP104 High Definition Audio Controller [10de:10f0] (rev a1)
81:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP104 [GeForce GTX 1080] [10de:1b80] (rev a1)
81:00.1 Audio device [0403]: NVIDIA Corporation GP104 High Definition Audio Controller [10de:10f0] (rev a1)
82:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP104 [GeForce GTX 1080] [10de:1b80] (rev a1)
82:00.1 Audio device [0403]: NVIDIA Corporation GP104 High Definition Audio Controller [10de:10f0] (rev a1)

In this example, GTX 1080 id is 10de:1b80 and its Audio Controller is 10de:10f0

# sudo sh -c 'echo "options vfio-pci ids=10de:1b80,10de:10f0 disable_vga=1" > /etc/modprobe.d/vfio-pci.conf'

3. Finish preparation

# sudo update-grub
# sudo update-initramfs -u
# sudo reboot

4. Verification

i. Is vfio enable?

# sudo lspci -nnk | grep -i nvidia -A2

02:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP104 [GeForce GTX 1080] [10de:1b80] (rev a1)
	Subsystem: Device [196e:119e]
	Kernel driver in use: vfio-pci
	Kernel modules: nvidiafb, nouveau
02:00.1 Audio device [0403]: NVIDIA Corporation GP104 High Definition Audio Controller [10de:10f0] (rev a1)
	Subsystem: Device [196e:119e]
	Kernel driver in use: vfio-pci
--
03:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP104 [GeForce GTX 1080] [10de:1b80] (rev a1)
	Subsystem: NVIDIA Corporation Device [10de:119e]
	Kernel driver in use: vfio-pci
	Kernel modules: nvidiafb, nouveau
03:00.1 Audio device [0403]: NVIDIA Corporation GP104 High Definition Audio Controller [10de:10f0] (rev a1)
	Subsystem: NVIDIA Corporation Device [10de:119e]
	Kernel driver in use: vfio-pci
	Kernel modules: snd_hda_intel
--
81:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP104 [GeForce GTX 1080] [10de:1b80] (rev a1)
	Subsystem: NVIDIA Corporation Device [10de:119e]
	Kernel driver in use: vfio-pci
	Kernel modules: nvidiafb, nouveau
81:00.1 Audio device [0403]: NVIDIA Corporation GP104 High Definition Audio Controller [10de:10f0] (rev a1)
	Subsystem: NVIDIA Corporation Device [10de:119e]
	Kernel driver in use: vfio-pci
	Kernel modules: snd_hda_intel
--
82:00.0 VGA compatible controller [0300]: NVIDIA Corporation GP104 [GeForce GTX 1080] [10de:1b80] (rev a1)
	Subsystem: NVIDIA Corporation Device [10de:119e]
	Kernel driver in use: vfio-pci
	Kernel modules: nvidiafb, nouveau
82:00.1 Audio device [0403]: NVIDIA Corporation GP104 High Definition Audio Controller [10de:10f0] (rev a1)
	Subsystem: NVIDIA Corporation Device [10de:119e]
	Kernel driver in use: vfio-pci
	Kernel modules: snd_hda_intel

5. QEMU

sudo apt-get install qemu-system-x86-64 numactl
mkdir /home/vm
cd /home/vm
wget 'https://software-download.microsoft.com/pr/Win10_1607_..._x64.iso?t=...' -O Win10_1607_x64.iso
wget https://fedorapeople.org/groups/virt/virtio-win/direct-downloads/stable-virtio/virtio-win.iso
git clone https://github.com/gmasse/gpu-pci-passthrough.git
EFI
sudo apt-get install git build-essential uuid-dev nasm acpica-tools iasl
mkdir src
cd src
git clone https://github.com/tianocore/edk2.git
cd edk2
make -C BaseTools/Source/C
nice OvmfPkg/build.sh -a X64 -n $(getconf _NPROCESSORS_ONLN)
cp Build/OvmfX64/DEBUG_GCC*/FV/OVMF.fd /home/vm/

II. First VM boot

Edit vm.sh according to your settings

# vi /home/vm/gpu-pci-passthrough/vm.sh

Start the VM number 1

# sh vm.sh 1

# sudo screen -r vm-1

QEMU 2.5.0 monitor - type 'help' for more information
(qemu) change vnc password
Password: ******
(qemu)

Press CTRL+A CTRL+D to quit screen

Start a VNC client (port 5901). On OS X, you can directly type in Safari "vnc://SERVERIP:5901". It will launch the Screen Sharing application.

(Optional) If the UEFI shell appears at first boot. Just type exit and select continue. Then press any key to boot from the CD. ImageImage

During Windows installation, load viostor and NetKVM drivers from virtio-win CD drive. Image

After windows restart, you can activate RDP and connect via rdp://SERVERIP:4001

Source: