bin/list_iommu_groups

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#!/usr/bin/env bash
# https://drakeor.com/2022/02/16/kvm-gpu-passthrough-tutorial/
shopt -s nullglob
for g in /sys/kernel/iommu_groups/*; do
echo "IOMMU Group ${g##*/}:"
for d in $g/devices/*; do
echo -e "\t$(lspci -nns ${d##*/})"
done;
done