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https://github.com/airborne-commando/vfio-gpu-script

A gpu script partially generated by AI, tweeked out a little.
https://github.com/airborne-commando/vfio-gpu-script

ai amd bash gpu intel iommu iommu-group linux nvidia shell vfio vfio-pci virtualization

Last synced: about 2 months ago
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A gpu script partially generated by AI, tweeked out a little.

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README 

          
# Check my troubleshooting guide for possible fixes to some issues.



[the guide/wiki](https://github.com/Nthompson096/vfio-gpu-script/wiki/troubleshooting) This will be updated if I find anything so I won't clobber up the readme.



# auto installs (windows)



[A small guide here. which will link to a detailed wiki](https://github.com/Nthompson096/vfio-gpu-script/wiki/From-creating-an-automatic-install-(windows))



# vfio-gpu-script

A gpu script partially by AI, useful for blacklisting AMD or NVIDIA GPU's on a dual GPU machine for virtualization (AMD/NVidia).



## How to activate

simply clone this archive (or download this script), then make this script executable with ```sudo chmod +x;``` afterwards run ```sudo ./vfio-gen-aio.sh``` or ```sudo sh ./vfio-gen-aio.sh``` in your terminal of choice.



This is what you'll need:



* virt-manager

* qemu-full 

* a rom for your GPU you can use a rom dumping utility or simply look on the internet [check the newly created page on the wiki](https://github.com/Nthompson096/vfio-gpu-script/wiki/Useful-guides-from-my-other-github-repo.).



For trying to pass though Nvidia you'll need to apply this patch and install either of these kernels listed in this wiki [if you use arch](https://wiki.archlinux.org/title/PCI_passthrough_via_OVMF#Bypassing_the_IOMMU_groups_(ACS_override_patch))

And for the sake of it, here's a video from [Pavol Elsig](https://www.youtube.com/watch?v=JBEzshbGPhQ) which should be an easier guide also a level1tech guide [here](https://forum.level1techs.com/t/how-to-apply-acs-override-patch-kubuntu-18-10-kernel-4-18-16/134204/2).

There's a repo on ASC+PCI patching [here](https://github.com/some-natalie/fedora-acs-override) however you'd have to rebuild the kernel apparently so if you do not wish to do so you may install [liquorix](https://liquorix.net/) instead if you'd like (fedora command is below).



for issues with the mouse/keyboard you'll need to use evdev, guide to do so is in inside the [archwiki](https://wiki.archlinux.org/title/PCI_passthrough_via_OVMF#Passing_keyboard/mouse_via_Evdev) you may also use some of the qemu commands I've pointed out [here](https://github.com/Nthompson096/KVM-GPU-Passthrough#for-people-having-issues-with-games-such-as-red-dead-2-enter-this-value-here-inside-the-xml-document-for-your-newcurrent-vm).

For issues with a stuck keyboard mouse input you may need the VFIO drivers; here's an [ISO](https://fedorapeople.org/groups/virt/virt/virtio-win/direct-downloads/stable-virtio/virtio-win.iso) file for it.



## What this script does!



* This script will ask you to blacklist either an AMD or NVIDIA drivers (GPUs)

* Will also ask if it wants you to create a vfio file (if you have the vfio-linux kernel or an a equivalent such as liquorix)

* Will ask you to input the values into your grub (pci.ids)

* Will ask you if you'd want to generate AMD/Intel Iommu configs

* Will ask you if you'd want to create GPU breakups with an ACS override patch (good for when groups are not grouped properly)

* Will ask you if you'd want to remove the blacklist/vfio on start, also will ask you if you want to revert grub.

* Will pull in other scripts for grub updates (or any bootloader you use) with grub-update and grub-backup shell scripts, will ask you to revert changes within grub revert; all customizable or at least easily customizable than compared to earlier; feel free to edit those files and the main vfio script should work for your disto.



## I have issues with resetting a GPU from AMD



This should help; keep in mind that it will suspend your host so you'll have to just click a keyboard button; you'll need to run this script as a super user (sudo) also be sure to edit the values for the PCI devices and you may use ``sudo sh`` when running this script.



    #!/bin/bash

    echo 1 > /sys/bus/pci/devices/0000:00:00.0/remove

    echo 1 > /sys/bus/pci/devices/0000:00:00.1/remove

    echo "Suspending..."

    rtcwake -m no -s 4

    systemctl suspend

    sleep 5s

    echo 1 > /sys/bus/pci/rescan    

    echo "Reset done"



you can view your GFX card with ``lspci`` and it should give you the PCI-E numbers such as ``09:00.0`` and ``09:00.1`` for an example.



### I have issues with my display, I am using AMD.



You would have to generate your initial ramdisk environments:

example for arch, which is what I'm using.



    sudo mkinitcpio --allpresets



Be sure to check the man pages, or install [tldr](https://tldr.sh/).



UPDATE: This is now inside the script; this will happen when it asks you if you'd like to delete the vfio file and you'd enter [y]es

Also be sure to have `MODULES=(amdgpu)` inside your `/etc/mkinitcpio.conf` for this to work.



# Patching your qemu-binary



You would need to install vim-common for this



    #!/bin/bash



    hexdump -ve '1/1 "%.2x"' ./qemu-system-x86_64 |

    sed -e 's/424f4348/434f4348/g' -e 's/42585043/44585043/g' |

    xxd -r -p > ./qemu-system-x86_64-pass



This would patch your qemu-system to not be easily found for gaming basically; otherwise you'd have to do it manually.



## liquorix



    sudo dnf copr enable rmnscnce/kernel-lqx

    sudo dnf in kernel-lqx



## I have issues with SElinux with my NTFS drive, VM will not start and or it crashes, already set permissons and groups (fedora)



Use this to enable VM's on a NTFS drive (selinux)



    setsebool  virt_use_fusefs=on



and before you run this script be sure to enter this following command to update grub and reboot (virt-manager crash windows any)



You'll also need to set your processor to QEMU and clear the current processor config from copying the current host; then you may set it back after a windows install.



    sudo grubby --update-kernel=ALL --args='kvm.ignore_msrs=1'







for Arch edit kvm.conf inside /etc/modprobe.d/. this is for BSOD inside windows host-passthough cpu modes:



    options kvm ignore_msrs=1



If all else fails you'll probably have to either set seliunx to ``permissive`` or ``disabled`` it inside ```/etc/selinux/config```



You can also set it wil grubby, that's inside the selinux config, will not cover here though.



## I have no idea how to set permisisons and groups inside fedora 



    sudo usermod -a -G libvirt $(whoami)

    

and be sure to add yourself to the qemu file like so in ```/etc/libvirt/qemu.conf```



      user = "1000"

      

    # The group for QEMU processes run by the system instance. It can be

    # specified in a similar way to user.

      group = "kvm"



The following above was an example and a Userid of the current user, which is you; you can change it to something you'd want.



## Fstab (NTFS)



     ntfs-3g default_permissons,allow_other,uid=1000,gid=1000,rw,umask=000 0 0

     



An example of a fstab drive; change it to what you will but it seems to work pretty well under fedora.



## GIF Examples



*  *inital startup*



![](https://i.imgur.com/N391AyF.gif)



*  *CPU and other options*



![](https://i.imgur.com/TuVIzoJ.gif)



## Current list of compat distros with no black screens (least for my card experience may vary)



### This will imply that you have dumped the ROM and loaded along with your PCI-e card UNDER FEDORA or possibly other Linux; remember mileage may vary.



### AMD

* AMD+Ubuntu=supported on the latest release.

* AMD+Debian=Doesn't fully support AMD.

* AMD+arch=supported

* AMD+Fedora=Not supported

* AMD*Windows=Supported



### NVIDIA

* NVIDIA+Ubuntu=supported

* NVIDIA+Arch=supported

* NVIDIA+Debian=supported

* NVIDIA+Fedora=Supported

* NVIDIA+Windows=Supported