diff --git a/utils/ls-iommu b/utils/ls-iommu
new file mode 100755
index 0000000..d56bb52
--- /dev/null
+++ b/utils/ls-iommu
@@ -0,0 +1,8 @@
+#!/bin/bash
+# Script from Wendell from Level1Tech
+# Originally from here: https://forum.level1techs.com/t/ubuntu-17-04-vfio-pcie-passthrough-kernel-update-4-14-rc1/119639
+for d in /sys/kernel/iommu_groups/*/devices/*; do
+  n=${d#*/iommu_groups/*}; n=${n%%/*}
+  printf 'IOMMU Group %s ' "$n"
+  lspci -nns "${d##*/}"
+done
\ No newline at end of file