Posted this on a Proxmox forum as well but wanted to see if anyone had any ideas on getting an Intel 520 integrated GPU (Skylake) working. For reference these are NUC 6i3.
The issue I am seeing is that upon starting the VM with PCI passthrough enabled the screen blanks and just goes dark. I am seeing dmesg lines: [ 202.990645] DMAR: DRHD: handling fault status reg 2 [ 202.990662] DMAR: [DMA Write] Request device [00:02.0] PASID ffffffff fault addr 0 [fault reason 02] Present bit in context entry is clear [ 203.384895] vfio-pci 0000:00:02.0: vgaarb: changed VGA decodes: olddecodes=io+mem,decodes=io+mem:owns=io+mem More details available here: https://gist.github.com/tachang/66d0db979aa6d9149a5a284e15b9bd74 I've seen one older thread which seems to apply to my situation. https://www.redhat.com/archives/vfio-users/2018-May/msg00008.html To continue I don't see anything useful in the libvirt domain log ( https://gist.github.com/tachang/f5d6b10e8e1e7f7ac2a5bb1180f6c096) -Jeff
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