Hi!
I ran Unraid earlier on my server (MSI Z490Z Pro with a Intel i3 10100) and my devices was perfectly isolated with one IOMMU group each.
Then I installed Proxmox instead and to my surprise the iommu groups were totally different. Not isolated at all, many devices in same
IOMMU-group.
Rebooted with unraid from an USB-stick and the IOMMU-groups were perfect again..
How come this behaviour? I thought the IOMMU groups were decided by the CPU and motherboard?
Note: NO ACS Override enabled on Unraid or Proxmox!
Unraid has a newer kernel than Proxmox, can this be a factor? But again, I thought the groups were decided in the cpu and/or the motherboard?
I ran Unraid earlier on my server (MSI Z490Z Pro with a Intel i3 10100) and my devices was perfectly isolated with one IOMMU group each.
Then I installed Proxmox instead and to my surprise the iommu groups were totally different. Not isolated at all, many devices in same
IOMMU-group.
Rebooted with unraid from an USB-stick and the IOMMU-groups were perfect again..
How come this behaviour? I thought the IOMMU groups were decided by the CPU and motherboard?
Note: NO ACS Override enabled on Unraid or Proxmox!
Unraid has a newer kernel than Proxmox, can this be a factor? But again, I thought the groups were decided in the cpu and/or the motherboard?