#vfio — Public Fediverse posts

PSA for anyone using #QEMU #KVM for #SingleGPUPassthrough
Guides are all over the net suggesting hooks scripts invoking pci devices, unloading/loading kernel modules, and other unnecessary things. Here's my current hook script for starting the VM:

systemctl stop display-manager

That's it. And the reverse for teardown:

systemctl start display-manager

#IOMMU groups still apply, and you need to pass the correct PCI devices to your VM, but everything else is handled automatically.

Disclaimer that this is how it works currently for my AMD card. I did have a working setup with my NVIDIA card that did unload/load kernel modules, however it seems things have come a long way since I set that up.

#virtualization #libvirt #vfio

Through #WINE and absolute fuckery, I was able to get #SkyrimSE running with #MO2 and run my existing load order. No more messing with #VFIO and #KVM . Only thing that won't work is #ENB — for that I'm testing #CommunityShaders which so far looks good. Not quite as pretty, but far more performant.

Through #WINE and absolute fuckery, I was able to get #SkyrimSE running with #MO2 and run my existing load order. No more messing with #VFIO and #KVM . Only thing that won't work is #ENB — for that I'm testing #CommunityShaders which so far looks good. Not quite as pretty, but far more performant.

RE: https://furry.engineer/@Flaky/116059368890193901

lmao, Chris Titus Tech had an update to Looking Glass and now he can't access his Windows VM.

This is why vGPUs are important!

#VFIO #libvirt #KVM

If anyone wants to passthrough their integrated GPU on an AMD Ryzen 7000 series, peep this. But I will say, it's actually not worth it. The reset bug is here despite the fact AMD has fixed it in Big Navi, and vendor-reset ain't gonna help. Just use an NVIDIA GPU instead, it'll be easier. Or just use VirtualBox if it's simple enough.

https://www.reddit.com/r/VFIO/comments/16mrk6j/amd_7000_seriesraphaelrdna2_igpu_passthrough/

#VFIO #AMD #Linux

Hi, I'm Sparrow. I run KstrlWorks where we build high-performance, privacy-first tools for Linux users.

Built systems for F-35s and high-frequency trading desks. Now an executive that companies with deep pockets parachute into their disasters to fix operations and actually grow them.

Currently shipping:
HardPass - GPU passthrough and #VFIO that actually works. For #LinuxGaming and power users.

I write about:
- Real #EngineeringLeadership. The kind that prevents incidents, not LinkedIn motivational posters.
- Running efficient, security-first teams that don't implode
- #Virtualization, systems architecture, and #Bootstrapping
- Building infrastructure so solid you never need to hire a fixer like me

High-performance, privacy-first tools built with the same standards I use for critical systems. Linux users deserve that.

Let's build things that work. 🐧

#Linux #SelfHosted #TechLeadership #Privacy #Introduction #FOSS #VFIO

One Open-source Project Daily

Tutorial on how to setup GPU Passthrough with KVM on Linux

https://github.com/bryansteiner/gpu-passthrough-tutorial

#1ospd #opensource #vfio #linux #gpu #windows

Just realised I haven’t touched the VFIO with looking glass setup that I spent days to get it work for months… damn

#linux #vfio #lookingglass

yesterday, i booted into the VFIO specialization for the first time since i reinstalled NixOS. i opened OBS and, as i kinda expected, it didn't work; i couldn't record the screen or capture windows. today, i booted into normal NixOS, where the GPU isn't restricted to virtual machines. and uh. yeah. OBS stopped working again

so i have a theory:

somehow, the NixOS specialization for VFIO is interfering in some way with files or configs or bindings or whatever, that are persistent, even after i turn off my laptop and boot into normal NixOS. this is the only logical explanation i can come up with. i'm using the exact same config i was using before reinstalling, when it was broken, and it was working, and then it stopped working

TLDR there's something that persists after the first boot into VFIO mode, that's preventing things from working normally in some way

#NixOS #linux #VFIO #OBS help me. i do not know what to do. here's my NixOS virtualization config file ​:boosts_ok_gay:​

RE: https://plasmatrap.com/notes/aar5ckbegw

Мой идеальный компьютер

Я сижу под Linux, но иногда нужна винда. До недавнего времени у меня был обычный dual boot, но сейчас я реализовал свой идеальный сетап: - основная система - Linux - Windows - на выделенной SSD - на нее можно загрузиться как из груба, так и из виртуалки - с пробросом второго GPU (дисплей на отдельный физический выход) - с качественным удаленным подключением (как RDP, но быстрое) - можно играть в игры Ниже опишу что и как сделал.

https://habr.com/ru/articles/921160/

#linux #virtualization #virtmanager #gpu #nvidia #vfio #nvme #pci_passthrough

Sometimes I feel really stupid that I just went to set the screen to 4k for my Windows virtual machine while the GPU I passed through is 2060 Super...

#vfio

yk what i'll just tell you what's wrong

even when i select the "no passthrough please" option, when the systemd output is on screen it ocasionally says something along the lines of "the gpu is already bound to vfio" which leads me to believe that the boot option is not working bc it's not letting the host use what i'm passing through to it. oddly enough i can't use virt-manager when i'm not in passthrough mode

yea i need help pls help me ​:BlobCat_BigSob:​ #nixos #nix #vfio #virtualmachine #virtualmachines my current virtualisation config is at github.com/JuxGD/nixconfig/blob/94d149a7d81fbd48735a091a7d0fa470318d79a6/virtualisation.nix

(edit: I FIXED IT it's all good go check the latest version of the file :3 the structure was totally off but it's fine now)

when you accidentally started krfb that the libvirt vm spice server moved to port 5901 automatically and then I am there trying to figure out why looking glass keeps crashing ​:neocat_googly_woozy_shocked_explode:​

#linux #libvert #qemu #krfb #lookingglass #vfio

For my fellow penguin's wanting to get into #vfio and #gaming on a #windows #virtualmachine you are in luck, i am sharing my configurations for this so you can use them in conjunction with a guide
https://git.xaetacore.net/jeroenmathon/vfio-configs

Feel free to copy it, please read the README it has some important pointers and tips on how to incorporate this into your own setup.

Please let me know if you need feedback and if you want to contribute let me know :)
#opensource #foss #kvm #linux

Time to tune my windows VM so i can play some games better ,i was thinking of CPU Core Pinning and More RAM.

#vfio #virtualization #kvm #linux #windows

Finally get the Windows VM back…

everything about upgrading Fedora went smooth except everything went wrong

Why you ruined my /boot partition, overwrite my kernel parameters, and decided I should use GRUB instead

Fedora why you like this

#fedora #linux #vfio

Nothing to see here, it's just Minecraft Bedrock Ray Tracing on GPU-passedthrough Windows virtual machine

#minecraft #linux #windows #kvm #gpu #vfio #lookingglass #raytracing

Finally, after so many days of researching and investigating, GPU passthrough with looking glass is finally done

#gpu #linux #windows #vfio #lookingglass

just to explain a lil further why I researched PCIe passthru on Proxmox yet again last night:

after learning that another of my friends is seriously affected by environmental noise, I'm experimenting with masking noise over speakers (not headphones or earbuds). this has been an on-and-off focus of mine since I was in college long ago.

anyway, having forgotten the last 3 times I did this, I hooked a USB audio device up to my music+audio VM and ran into the crackling problems I did before. USB passthru in Proxmox just can't meet the needs of live audio. so I looked further into PCIe passthru to see if there was a way to break up the giant IOMMU groups offered by my highly-integrated mini PC, without using a kernel patch which does so by introducing a giant security hole.

there is something called PCIe Access Control Service (ACS) which can break up the IOMMU groups, but as best I can tell it's not supported by the HP EliteDesk Mini 805 G8 and/or the Ryzen 5750GE APU. this ends my quest for PCIe passthru.

so I'm now using Bluetooth to a speaker 2 feet from the server, because somehow, USB passthru of a *Bluetooth* transceiver in #Proxmox can do audio just fine, whereas passthru of a basic USB DAC cannot. 🙄 #VFIO

now that I've researched it for the 4th time, I'm very confident I can't do PCIe passthru to guest VMs on my personal box without enabling a patch which is a giant gaping security hole

due to the reasons for this, it's more likely to be this way on small highly-integrated computers (at least ones which don't seem to support PCIe Access Control Service (ACS))... #vfio

can you GPU passthrough an integrated GPU on the AM5 CPUs? They're in their own IOMMU groups on my motherboard, so I thought I'd ask.

#Linux #VFIO

Achieved a major milestone this weekend: My #nixos system is now configured for virtual machines with #VFIO (GPU passthrough) and uses my #nixvim Flake configuration for #vim
The only missing piece now is being able to use the #JetBrains "Code With Me" client

Got a #nixos modularised setup finally which is way overdue

Might set up other things, might even consider impermanence

In terms of other things, got plans for #vfio passthrough via a #nvidia #GPU that may aswell be classed as ancient by modern standards just so that I don't have to feel like shooting my foot every time I open a #windows VM and have it be ungodly slow

does anyone familiar with KVMs on linux know if it's a good and reliable way to play Fortnite? the results on r/VFIO are pretty inconclusive

#Linux #KVM #VFIO #Fortnite
sorry if the hashtags are annoying it's just for discoverability lol

so i've moved my macos #kvm to its own nvme. what was much snappier on the sata ssd, in the qemu image than on baremetal nvme windows is now even better. however this thing was advertised to 7k MB/s read ..it is not quite there. due to apfs i am not sure how to verify this test right now. using virtio-blk because i was unable to passthrough the nvme controller – not even manually. (unviable group, even when forced to #vfio module)

lets see if i can tweak it a bit – suggestions welcome #ovmf

so i've moved my macos #kvm to its own nvme. what was much snappier on the sata ssd, in the qemu image than on baremetal nvme windows is now even better. however this thing was advertised to 7k MB/s read ..it is not quite there. due to apfs i am not sure how to verify this test right now. using virtio-blk because i was unable to passthrough the nvme controller – not even manually. (unviable group, even when forced to #vfio module)

lets see if i can tweak it a bit – suggestions welcome #ovmf