Virtual Gamming Machine

GPU Passthroung for Gaming or Train models inside a virtual machine with GPU passthrough (WIP)

This project intends to create, modify and run virtual machines with GPU passthrough.
Based on the tutorial: PCI_passthrough_via_OVMF

Attention

Early development state project (WIP).
Only Arch-Linux is supported currently. Ubuntu support is in development state.

TODO List

• Allow use of non root user launch the virtual machine.
• Add ubuntu support.
• Enable dhcp on the bridge network.
• Add looking glass host installation support.

Prepare the machine

Before you install/use this software:

• Must have arch-linux installed
• You need to enable the virtualization tecnologies on your bios. ("VT-d" or "AMD-Vi" or Virtualization technology)
• You need to enable the internal graphics and disable gpu startup on your bios.
• You need to enable IOMMU using kernel parameters (modifying your boot loader menu or it's configuration file).
  Set intel_iommu=on (for intel processors) or amd_iommu=on (for amd ones).
  You can add iommu=pt to prevent linux from touching devices that cant pass through.
  More information here Edit kernel parameters
• You need to have two monitor or a monitor with 2 inputs (for the virtual machine and the host).
• You need to isolate the GPUs you want to passthrough to prevent from the host OS using them. How to

Installation

pip3 install git+ssh://git@github.com/rodjjo/kvm-gpu-trainer.git --upgrade

Show help

vm-trainer --help
# or vm-trainer <command> --help

Install virtualization tools

vm-trainer depman-install-build-tools
vm-trainer depman-install-git
vm-trainer depman-install-qemu

Install scream

For more informations about scream click-here

vm-trainer depman-install-scream

Create the virtual machine

vm-trainer machine-create --name windows --cpus 4 --disk-size 200000 --memory 8192

Show host available gpus

vm-trainer show-gpus

Select the gpu for a machine

vm-trainer machine-set-gpus --name windows

Select the keyboard

You can press both CTRL keys to switch between the virtual machine and the host

vm-trainer machine-select-keyboard --name windows

Select the mouse

vm-trainer machine-select-mouse --name windows

Configure the network (internet)

You have to define the physical network adapter connected to the internet.

vm-trainer network-show-physical
# example of outputs:
# eth0
# enp6s0
vm-trainer settings-set-network-interface --name eth0

Run the virtual machine with an iso file to setup the operating system

vm-trainer machine-run-with-iso --name windows --iso location/to/my/original-windows10-disk.iso

Run the virtual machine without an iso attached to it

After you installed the operating system

vm-trainer machine-run --name windows

VPN

If you have a vpn where qemu is running set the network to use the tap interface:

vm-trainer network-add-tap --target tun0

Network configuration

Currently, this project create a bridge network with the ip 192.168.66.1 (you can change this).
You need to configure the network in the virtual machine to use static ip configuration:

IP: 192.168.66.2  
Gateway: 192.168.66.1  
DNS: 8.8.8.8  

DHCP (automatic ip configuration) support is at the TODO list.

Network IP Linux

Set the IP address inside the Virtual Machine

sudo su
route delete default
ifconfig enp7s0 192.168.66.2 up
route add default gw 192.168.66.1 dev enp7s0
killall dnsmasq
dnsmasq --server=10.8.0.1 & 
disown
resolvectl dns enp7s0 10.8.0.1
resolvectl default-route enp7s0 true
#vi /etc/resolv-conf.systemd
#nameserver 10.8.0.1
#systemctl restart systemd-resolved.service

Mount the shared directory you have inside the VM:

sudo su
mkdir -p /mnt/data/shared/
mount -t 9p -o trans=virtio,version=9p2000.L hostshare /mnt/data/shared/

Configuring the audio inside the virtual machine

Take a look at click-here

Configure persistent evdev

In order to plugin and play evdev:

https://github.com/aiberia/persistent-evdev/blob/master/README.md

Tested on the system configuration

OS: Arch Linux
Kernel: x86_64 Linux 5.8.9-arch2-1
Shell: zsh 5.8
Resolution: 1920x1080
DE: GNOME 3.36.4
Disk: 12T CPU: Intel Core i5-3570 @ 4x 3.8GHz
GPU: GeForce GTX 1080
RAM: 24GB dual layer configuration: 8GB + 8GB and 4GB + 4GB