Sunday, February 16, 2014

[fedora-virt] GPU Passthrough problem

Hello everyone,

As many other before me, I'm having problems with GPU Passthrough.  I'm running Fedora 20 with kernel 3.13.3 and the packages from the virt-preview.
My configuration is a Dell OptiPlex 7010, equipped with a Core i5 3470 and a Radeon HD7570 from Dell.

VT-d and vfio work fine for other devices, such as the audio controller, but I can't seem to passthrough the graphic cards.  Primary passthrough simply fails, secondary passthrough with a Cirrus VGA gives me Error 10.  In both cases, I hear the GPU fan reacting when the VM boots, but then nothing happens.

I tried blacklisting completely the i915 driver, as I can live without it.  This is for a project aimed at a seamless interaction with a Windows VM, the Linux hypervisor doing background processing, hidden from the user.  Given my situation, what are my best next shots ?

Eric Viseur
Etudiant Ingénieur Civil Electricien

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