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GPU passthrough Gen8


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I have a Microserver Gen8 with the Celeron CPU.
I'm trying to passthrough the GPU to the KVM hypervisor folowing this document: https://scottlinux.com/2016/08/28/gpu-passthrough-with-kvm-and-debian-linux/

My issue is that IOMMU doesn't seem to work. Whether with Debian Stretch nor with CentOS 7.3. VT-d and CPU virtualization is enabled in the BIOS. An IOMMU specific BIOS setting doesn't seem to exist.
After booting with intel_iommu=on there are no iommu groups. Does anyone know how to fix this?

No groups created:

root@nas:~# dmesg|grep -e DMAR -e IOMMU -e vfio
[Fri Jun  2 12:06:34 2017] DMAR: IOMMU enabled

No IOMMU groups can be found. Therefore the setup doesn't work and

find /sys/kernel/iommu_groups/ -type l 

gives no results. Therefore the setup doesn't work and vfio-pci refuses to do something.


Any help or ideas are much appreciated.



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Or an i5 2390t which is what I use and Very cheap cex sometimes sell them and they are cheap from them. I use a hd 6450 to use Kodi on the bedroom tv

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