Hello,Try adding the line to your VM configuration file:
Code:machine: q35
Try changing the line
Code:args: -device vfio-pci,host=00:02.0,addr=0x02,x-igd-gms=1,x-igd-opregion=on,romfile=vbios_hd4600.rom
Try changing the line in the file /etc/default/grub:
Then update-grub and reboot.Code:GRUB_CMDLINE_LINUX_DEFAULT="quiet intel_iommu=on iommu=pt pcie_acs_override=downstream video=efifb:off"
I have applied those changes, and it seems iommu groups are also showing fine:
Code:
/sys/kernel/iommu_groups/17/devices/0000:04:00.0
/sys/kernel/iommu_groups/7/devices/0000:00:1b.0
/sys/kernel/iommu_groups/15/devices/0000:02:00.0
/sys/kernel/iommu_groups/5/devices/0000:00:16.0
/sys/kernel/iommu_groups/13/devices/0000:00:1f.2
/sys/kernel/iommu_groups/13/devices/0000:00:1f.0
/sys/kernel/iommu_groups/13/devices/0000:00:1f.3
/sys/kernel/iommu_groups/3/devices/0000:00:03.0
/sys/kernel/iommu_groups/21/devices/0000:06:00.3
/sys/kernel/iommu_groups/11/devices/0000:00:1c.4
/sys/kernel/iommu_groups/1/devices/0000:00:01.0
/sys/kernel/iommu_groups/18/devices/0000:06:00.0
/sys/kernel/iommu_groups/8/devices/0000:00:1c.0
/sys/kernel/iommu_groups/16/devices/0000:03:00.0
/sys/kernel/iommu_groups/6/devices/0000:00:1a.0
/sys/kernel/iommu_groups/14/devices/0000:01:00.0
/sys/kernel/iommu_groups/4/devices/0000:00:14.0
/sys/kernel/iommu_groups/12/devices/0000:00:1d.0
/sys/kernel/iommu_groups/2/devices/0000:00:02.0
/sys/kernel/iommu_groups/20/devices/0000:06:00.2
/sys/kernel/iommu_groups/10/devices/0000:00:1c.3
/sys/kernel/iommu_groups/0/devices/0000:00:00.0
/sys/kernel/iommu_groups/19/devices/0000:06:00.1
/sys/kernel/iommu_groups/9/devices/0000:00:1c.2
I will test the result and let you know
Kind regards