https://bugs.freedesktop.org/show_bug.cgi?id=106111
Bug ID: 106111 Summary: [GPU Passthrough]GPU (Polaris) not reinitialized with Linux VM (Reset bug) Product: DRI Version: unspecified Hardware: x86-64 (AMD64) OS: All Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: berillions@gmail.com CC: alexdeucher@gmail.com
Created attachment 138887 --> https://bugs.freedesktop.org/attachment.cgi?id=138887&action=edit xorg.conf
Hi,
My Setup : - AMD Ryzen 1600 - 16 Gb Memory RAM - Host (Debian Stable, kernel 4.16.2) : AMD Rx560 4Gb - Guest (Windows 10 / Archlinux Kernel 4.15.x-4.16.x) : AMD Rx580 - 8Gb
Years ago there was an issue on Windows virtual machine with Qemu/VFIO and AMD GPU. It was impossible to reboot or use a 2nde time the Guest because the GPU was not reinitialized when the Host was shutdown. The only solution to re-use the VM was to reboot the Host OR use a Nvidia GPU.
Actually, the issue is fixed on Windows VM + AMD GPU passed through (i don't know how), i can use more times my VM without reboot the Host.
But if i use my Linux VM with my Rx580, the issue still exist. The first launch works, i can use the Rx580 to play without problem. But if i shutdown/reboot the guest, the Rx580 is "blocked". I need to hard reboot because the system hangs after ~2-3 minutes.
Thanks for your help, Maxime
(Sorry for my English, i'm French)