IOMMU Passthrough on Unraid

Software & Operating Systems VFIO
1

I am trying to pass my 4 port GB NIC to pass through to my pfSense VM.
IOMMU shows enabled on Unraid but I do not have a IOMMU setting in my bios.

My NIC is in IOMMU Group 15 with this ID 8086:10bc

[1022:43d5] 02:00.0 USB controller: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset USB 3.1 XHCI Controller (rev 01)
[1022:43c8] 02:00.1 SATA controller: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset SATA Controller (rev 01)
[1022:43c6] 02:00.2 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Bridge (rev 01)
[1022:43c7] 03:00.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
[1022:43c7] 03:01.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
[1022:43c7] 03:04.0 PCI bridge: Advanced Micro Devices, Inc. [AMD] 400 Series Chipset PCIe Port (rev 01)
[8086:1539] 04:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)
[111d:8018] 06:00.0 PCI bridge: Microsemi / PMC / IDT PES12N3A 12-lane 3-Port PCI Express Switch (rev 0e)
[111d:8018] 07:02.0 PCI bridge: Microsemi / PMC / IDT PES12N3A 12-lane 3-Port PCI Express Switch (rev 0e)
[111d:8018] 07:04.0 PCI bridge: Microsemi / PMC / IDT PES12N3A 12-lane 3-Port PCI Express Switch (rev 0e)
[8086:10bc] 08:00.0 Ethernet controller: Intel Corporation 82571EB/82571GB Gigabit Ethernet Controller (Copper) (rev 06)
[8086:10bc] 08:00.1 Ethernet controller: Intel Corporation 82571EB/82571GB Gigabit Ethernet Controller (Copper) (rev 06)
[8086:10bc] 09:00.0 Ethernet controller: Intel Corporation 82571EB/82571GB Gigabit Ethernet Controller (Copper) (rev 06)
[8086:10bc] 09:00.1 Ethernet controller: Intel Corporation 82571EB/82571GB Gigabit Ethernet Controller (Copper) (rev 06)

I tried adding this under flash vfio-pci.ids=8086:10bc
And the NIC still wont show under other PCI devices

I changed it to the following:
vfio-pci.ids=8086:10bc,1022:43d5,1022:43c8,8086:1539

When I do this I cannot ping my unraid server nor access the web gui remotely.

I tried enabling ACS override and even VFIO allow unsafe interrupts

I cannot get it to work and hoping someone could help.

2

unRAID forums would be best place to ask for support :wink:

Try SpaceInvaderOne’s YT videos too :wink:

You will need ACS patch of some sort (see his latest video) to separate them and latest video also tells you how to pass devices easily

Go load up YT my man! :smile:

3

Hi,

Did you ever get this resolved?

This is exactly the question I have, as I have a similar question. I think it has got to do with an option in the BIOS not available. The CPU I have in the computer supports Vt-d (IOMMU) but unraid will not group them at all nor disallow them at boot.

Thanks!