Arch Linux

markus_ont

Member

Registered: 2026-08-28

Posts: 1

In case anyone has MSI PRO Z890-P WIFI Motherboard

Hi there,

Are there anyone in here who by any chance has/or has access to the MSI PRO Z890-P WIFI (https://www.msi.com/Motherboard/PRO-Z89 … cification)?

I'm looking for what are the IOMMU group isolation of the board.

The main issue with checking these is that one needs to have the board, otherwise it's practically almost impossible to get this kind of info from the docs or whatever, sadly.
So if you have this board, I will highly appreciate if could check it. It's fairly easy to do, all you need is to boot the system with a live linux distribution with iommu=on intel_iommu=on in the kernel command line. and then run this script to see the full group layout:

#!/bin/bash
shopt -s nullglob
for g in /sys/kernel/iommu_groups/*; do
    echo "IOMMU Group ${g##*/}:"
    for d in "$g"/devices/*; do   # added quotes for safety
        lspci -nns "${d##*/}" | sed 's/^/    /'
    done
done

Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 15,421

Re: In case anyone has MSI PRO Z890-P WIFI Motherboard

That differs from the script archlinux users have used for years to get that info, see PCI passthrough via OVMF # Ensuring that the groups are valid .

Keep in mind that IOMMU groups are created dynamically by uefi firmware and often change after firmware updates.

Please post the output you get from the correct script and explain what the issue is you're trying to solve.

Welcome to forums.

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