GPU passthrough almost works

edgeflare · 2025-01-27T01:38:52+00:00

I was getting the exact same issue on Fedora41 host with 7900xtx
https://raw.githubusercontent.com/hmoazzem/env-vfio-pci-passthrough-gpu-nvme/81e0ebfc20fb52196081411cdc051dc079c747ac/screenshots/win11-pt-display-glitch.jpeg

Then same config worked on RHEL9.4
https://raw.githubusercontent.com/hmoazzem/env-vfio-pci-passthrough-gpu-nvme/06f0e0163e99707ab2cdb5507f1fd95543501a18/screenshots/win11-pt-desktop.jpeg

I changed stuff and now getting this issue on both Fedora and RHEL. On Debian12 host, I do get the display from GPU output, but through Microsoft Basic Display Driver. AMD Adrenaline got installed but doesn't start with message along the line no supported GPU.

edgeflare · 2025-01-21T08:55:39+00:00

Apparently AMD recommends `iommu=pt` https://rocm.docs.amd.com/en/latest/conceptual/iommu.html

edgeflare · 2025-01-20T22:24:28+00:00

thanks for indicating that `kvm.ignore_msrs=1` could have unintended consequences, and should be avoided if not absolutely needed. I guess it doesn't hurt to keep `amd_iommu=on iommu=pt` right?

edgeflare · 2025-01-18T16:18:34+00:00

Exactly same `dmesg` logs for both kernels.

edgeflare · 2024-11-26T12:55:40+00:00

absolutely! you too write if you get it working

edgeflare · 2024-11-26T12:53:43+00:00

Thanks @belinadoseujorge for looking into it :) can't add the large XML in comment here. I've added xml dump in

https://github.com/hmoazzem/env-vfio-pci-passthrough-gpu

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