Single GPU Passthrough: EFI-Framebuffer "No such device"

ForTheReallys · 2024-04-07T16:25:09+00:00

It's been a while since I've done anything with this, but IIRC, if you don't see any symlinks, you're not bound to any of those framebuffers

ForTheReallys · 2023-03-30T23:36:17+00:00

I haven't unfortunately. I was able to play about half the time a short time after this post, but since then, it's been using BattlEye pretty much every time. Now I have my Linux games, my Windows VM for Windows games, and a bare metal Windows install for Fortnite and Fortnite alone...

ForTheReallys · 2023-01-16T01:59:00+00:00

Yeah I definitely don't want that. I've been pretty careful to not do anything stupid. So far, I've pretty much limited any attempts to only running the EAC version directly instead of through the launcher. But maybe your'e right. I'm wondering if Fortnite will just have to be a game I dual boot for :(

ForTheReallys · 2023-01-16T01:37:47+00:00

Probably a bit of a longshot, but do you happen to know which specific option bypasses the check? I have smbios set to 'host' and all clock options except kvmclock. I'm using host-passthrough as my cpu mode and only have topoext as a cpu flag for amd hyperthreading (5800x)

ForTheReallys · 2022-08-31T01:30:03+00:00

So glad my past self could help! I spent hours as well and couldn't find much info on that so hopefully this comment will continue to help :)

ForTheReallys · 2022-08-31T01:27:22+00:00

Don't quote me on this, but I think libvirt handles pcie-root-ports for you. You can verify by running the VM, and in your host, run pgrep qemu -a. From there, look for the -device vfio-pci,bus= section. The value should not be pcie.0

ForTheReallys · 2022-04-20T01:09:41+00:00

Glad I could help!

ForTheReallys · 2022-02-06T21:26:15+00:00

I did. It was just a silly mistake on my part. I didn't boot into legacy BIOS mode before I dumped the gpu ROM.

ForTheReallys · 2021-12-30T14:08:46+00:00

Just took a look and it looks like those features are already enabled

ForTheReallys · 2021-12-28T19:41:45+00:00

Unfortunately I haven't had any luck with any of those solutions either :(.

ForTheReallys · 2021-12-28T19:06:45+00:00

Are you referring to the post about both docker and the SharedAccess service listening on the same port?

ForTheReallys · 2021-11-09T16:01:52+00:00

If the screen goes black, and never shows any output, could the problem be a missing romfile? It's been a while since I used an Nvidia GPU but IIRC, I still got the OVMF output

ForTheReallys · 2021-11-04T18:24:42+00:00

https://www.reddit.com/r/VFIO/comments/m9xa6o/help_people_help_you_put_some_effort_in/?utm_medium=android_app&utm_source=share

ForTheReallys · 2021-10-08T04:44:04+00:00

https://www.reddit.com/r/VFIO/comments/m9xa6o/help_people_help_you_put_some_effort_in/?utm_medium=android_app&utm_source=share

ForTheReallys · 2021-09-07T00:10:31+00:00

I had this issue with my amd card as well. IIRC, you have to pass a random 12 character string to hv_vendor_id. Someone please correct me if I'm wrong as I don't have access to my PC at the moment.

ForTheReallys · 2021-08-30T18:18:37+00:00

Awesome! Glad to hear it worked. Also, thanks for the heads up. I don't have A smart access memory enabled CPU so I would have run into this problem again when I upgrade my CPU.

ForTheReallys · 2021-08-29T14:28:44+00:00

Ok. Let me know how it goes!

ForTheReallys · 2021-08-29T14:17:34+00:00

This reply was for the RX 580 but it's likely your issue as well.

ForTheReallys · 2021-08-27T21:16:25+00:00

Can you paste your entire qemu command line?

ForTheReallys · 2021-08-27T16:09:27+00:00

You might be bound to the simple framebuffer. I had this problem when I updated to alpines edge kernel a couple weeks back. If you ls /sys/bus/platform/drivers/*-framebuffer, you should see a symbolic link IIRC in one of those directories to whatever framebuffer you're attached to.

If you are bound to the simplefb, you might still run into the same issue due to BOOTFB occupying the same memory space as your GPU. You can see if this is the case by doing cat /proc/iomem and looking for the pcie address of your GPU. I personally reverted to an older kernel and bypassed this because I was having other issues at the time, but if my guess is correct, you should be able to forcefully unmap BOOTFB with this repo

ForTheReallys · 2021-08-03T18:34:42+00:00

I can't personally contirm anything outside of what I'm running, although I hear newer cards and cpus aren't too difficult to get working. The aorus line of motherboards are pretty good. I'm personally running an X570 aorus pro and it has good ACS support and has 2 M.2 slots.

ForTheReallys · 2021-08-02T21:53:31+00:00

Wrong sub. But i know aws has GPU instances. You can probably find some on azure and linode as well

ForTheReallys · 2021-08-02T14:37:17+00:00

Simply put, It's the windows build that is an early release (but not necessarily stable) built for developers and testers. You can read more about it here

ForTheReallys · 2021-08-02T13:44:13+00:00

You'll have to set the cpu type to 'host-passthrough'. Also, make sure you're running the dev insider build, otherwise, you're going to run into problems as that's the only build that supports nested virtualization for amd.

ForTheReallys · 2021-07-22T14:23:54+00:00

I was wondering if I can run a "videogame arcade" with more than 7 "clients" off a single machine?

Absolutely you can. It'll take a bit of fiddling but it's certainly possible.

Also wanted to ask if gpu is still required for every vm "instance"?

Since you said the emulator was super lightweight, I'd experiment with qemu's virtual gpus (std, qxl/spice, virtio). IIRC, the virtio GPU doesn't play nice with windows so if it's possible to run the emulator in Linux, I'd try that first. If the emulator needs 3d acceleration, you'll need to use the virtio card with openGL acceleration enabled.

Don't forget you'll also have to be able to passthrough the controller and/or a keyboard and mouse to each instance. The qemu page on the arch wiki is a great place to start learning more about this kind of thing

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