Sven wrote:
> Is there any kernel with which VFIO is supported, or is it simply
> "VFIO not supported"?Even with 5.12-9 the kernel logs show "AMD IOMMUv2 functionality not
available on this system",
although lspci does show a 1022:1631 device, which recent pci.ids
identify as "Renoir IOMMU".
I have to correct this statement: having the dom0 kernel reporting
"AMD IOMMUv2 functionality not available on this system" and not seeing
vfio groups in dom0 is not the symptom to look for.
OTOH /var/log/xen/console/hypervisor.log does show:
[2021-09-11 17:04:58] (XEN) AMD-Vi: IOMMU 0 Enabled.
[2021-09-11 17:04:58] (XEN) I/O virtualisation enabled
So IOMMU is really supported here (running 5.10 on QubesOS 4.1beta here).
See Hunting for Qubes compatibility issues on MSI Bravo 17 - #2 by yann