AMD and NVME passthrough, both work but not at same time?


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So I have an RX570 and a Samsung PM951 SSD. I have Windows installed to the NVME drive with VNC just fine. It boots, no issues. If I passthrough the AMD card - nothing.

I also have a Windows VM based on an image file - I can pass the AMD card to that just fine.

Both VMs are the same Q35 chipset and Seabios set on them. I just can’t get the graphics passthrough to work at the same time as the NVME. Both devices are completely separate in terms of IOMMU groupings in system devices.

 

Host machine is set to UEFI (not sure if this matters)

 

Any ideas?

 

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