vfio VS Complete-Single-GPU-Passthrough

If you love wasting time you could give my script a shot as well from a terminal with your gpu as the -pci argument, but you'll also want to give it your USB controllers too.

In my script I have -name main,debug-threads=on in my qemu command which helps me find which child thread is the iothread. I do my pinning using the same debug thread name discovery method.

Yeah my script is public and can be found here. I've thought about making an actual link post here a few times in the past but I guess the time to do so never really came up.

These boot arguments allow me to give my VM cores 3,11 to my guest while my host continues to operate (and handle any IOThreads I may have running for the guest) on the remaining cores 0(thread0,12), core1(thread1,13) and core3 (thread2,14). Personally, I handle my pinning dynamically with a bash script I wrote and still today find myself adding features and making improvements to. It can be found here if you want to give it a shot for your use case.

How does this compare to /u/ipaqmaster's script which accepts one-liners for single or dual and you're set?

You'll get further posting here by detailing what exactly is going wrong when you try and any configuration and scripts you tried to do it with. There are also scripts which try to be the everyman and do it all for you such as this vfio bash script written by one of the members here.

You may wish to try my vfio script which handles all of that automatically. Could be worth a try.

I've missed no opportunity to plug it lately, but the slew of people using hardcoded scripts copy-pasted from some guide or youtube video has never felt right to me. I made my own dynamic script which handles most vfio problems on the fly rather than hardcoding start.sh/stop.sh scripts per configuration. It could be worth checking out given I made it for Archlinux (my desktop) and you seem to be running that too.

I use this script to help start the qemu VM (there were no recent changes to the script) (I can paste the full qemu_system_x86_64 command if that would help) https://github.com/ipaqmaster/vfio

Well, if you'd be willing to give it a test drive just for fun I made and use this for my daily VFIO ease of access if you'd want to give it a try.

I was trying to get single GPU passthrough to work on my RX 6700xt and Ryzen 5 5600 however after following this guidehttps://github.com/QaidVoid/Complete-Single-GPU-Passthrough I can no longer even launch any VMs or create any new ones. I get this error.

Im assuming you're on a single gpu setup and, as such are trying to do single gpu passthrough with a single nvidia card. so you'll likely have to run some libvirt hooks or smth to run scripts to unbind your gpu once you start your vm. In which case id suggest going through these two guides 1 2 which go over completely passing through your single gpu when you start your vm

Thanks for reply. I didn't find the issue, but I decided to install endeaveour just to not reinstall arch every hour and using this guide I managed to make it work. I guess on bare bones system I missed something every time I tried, but I'm not experienced enough to know what I didn't do to run it.

I have a similar use case. I good good guide to follow would be this but I also have my iGPU disabled completely.

not an expert on this, but you can use the single gpu passthrough scripts to unload/reload drivers for host/vm needs. (no reboots) ssh into the desktop pc and test out what works for you. https://github.com/QaidVoid/Complete-Single-GPU-Passthrough what helped me here was unbinding/binding the vtconsoles before unloading/loading drivers again via tty. If you do it directly on the machine, you may lose tty/framebuffer, which is why I suggested ssh.

I used this and it worked. https://github.com/QaidVoid/Complete-Single-GPU-Passthrough

Hello. I have an RX 6600, and I wanted to use single gpu pass through. I followed this guide. Everything worked fine, until I got to installing the drivers. Once they got installed I got a black screen. I know it installed successfully because I used teamviewer to look at my screen from a different PC. Any help would be appreciated.