RTX 5070 : passthrough not working on Qubes OS (Xen)

[luxnr]

NVIDIA Open GPU Kernel Modules Version

575.64.05

Please confirm this issue does not happen with the proprietary driver (of the same version). This issue tracker is only for bugs specific to the open kernel driver.

• I confirm that this does not happen with the proprietary driver package. not applicable : the proprietary driver does not support 5000 series

Operating System and Version

Fedora Linux 42

Kernel Release

6.15.9-201.fc42

Please confirm you are running a stable release kernel (e.g. not a -rc). We do not accept bug reports for unreleased kernels.

• I am running on a stable kernel release.

Hardware: GPU

MSI RTX 5070

Describe the bug

Trying to setup GPU passthrough on my desktop computer (motherboard : MSI B650, GPU: MSI RTX 5070). The GPU is listed in lspci on the guest, but nvidia-smi shows "no devices were found" error. (QubesOS/qubes-issues#10036)

The issue seems specific to Qubes or Xen, but maybe you could provide some explanations on the error messages I get from NVRM in dmesg (see bug report below).

To Reproduce

1. Install Qubes 4.2.4 and update dom0
2. Hide GPU and associated audio device from dom0
3. Create a fedora HVM and attach both devices (with permissive=True and no-strict-reset=True)
4. Install akmod-nvidia and xorg-x11-drv-nvidia-cuda in HVM
5. Reboot
6. Run nvidia-smi

Bug Incidence

Always

nvidia-bug-report.log.gz

nvidia-bug-report.log.gz

More Info

No response