List IOMMU Groups and the connected USB Devices

iommu.sh

#!/usr/bin/env bash

shopt -s nullglob
lastgroup=""
for g in `find /sys/kernel/iommu_groups/* -maxdepth 0 -type d | sort -V`; do
    for d in $g/devices/*; do
        if [ "${g##*/}" != "$lastgroup" ]; then
            echo -en "Group ${g##*/}:\t"
        else
            echo -en "\t\t"
        fi
        lastgroup=${g##*/}
        lspci -nms ${d##*/} | awk -F'"' '{printf "[%s:%s]", $4, $6}'
        if [[ -e "$d"/reset ]]; then echo -en " [R] "; else echo -en "     "; fi

        lspci -mms ${d##*/} | awk -F'"' '{printf "%s %-40s %s\n", $1, $2, $6}'
        for u in ${d}/usb*/; do
            bus=$(cat "${u}/busnum")
            lsusb -s $bus: | \
                awk '{gsub(/:/,"",$4); printf "%s|%s %s %s %s|", $6, $1, $2, $3, $4; for(i=7;i<=NF;i++){printf "%s ", $i}; printf "\n"}' | \
                awk -F'|' '{printf "USB:\t\t[%s]\t\t %-40s %s\n", $1, $2, $3}'
        done
    done
done

Requires usbutils and pciutils.

Example output:

Group 0:        [1022:1452]     00:01.0  Host bridge                              Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
Group 1:        [1022:1453] [R] 00:01.1  PCI bridge                               Family 17h (Models 00h-0fh) PCIe GPP Bridge
Group 2:        [1022:1453] [R] 00:01.3  PCI bridge                               Family 17h (Models 00h-0fh) PCIe GPP Bridge
Group 3:        [1022:1452]     00:02.0  Host bridge                              Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
Group 4:        [1022:1452]     00:03.0  Host bridge                              Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
Group 5:        [1022:1453] [R] 00:03.1  PCI bridge                               Family 17h (Models 00h-0fh) PCIe GPP Bridge
Group 6:        [1022:1453] [R] 00:03.2  PCI bridge                               Family 17h (Models 00h-0fh) PCIe GPP Bridge
Group 7:        [1022:1452]     00:04.0  Host bridge                              Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
Group 8:        [1022:1452]     00:07.0  Host bridge                              Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
Group 9:        [1022:1454] [R] 00:07.1  PCI bridge                               Family 17h (Models 00h-0fh) Internal PCIe GPP Bridge 0 to Bus B
Group 10:       [1022:1452]     00:08.0  Host bridge                              Family 17h (Models 00h-1fh) PCIe Dummy Host Bridge
Group 11:       [1022:1454] [R] 00:08.1  PCI bridge                               Family 17h (Models 00h-0fh) Internal PCIe GPP Bridge 0 to Bus B
Group 12:       [1022:790b]     00:14.0  SMBus                                    FCH SMBus Controller
                [1022:790e]     00:14.3  ISA bridge                               FCH LPC Bridge
Group 13:       [1022:1460]     00:18.0  Host bridge                              Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 0
                [1022:1461]     00:18.1  Host bridge                              Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 1
                [1022:1462]     00:18.2  Host bridge                              Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 2
                [1022:1463]     00:18.3  Host bridge                              Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 3
                [1022:1464]     00:18.4  Host bridge                              Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 4
                [1022:1465]     00:18.5  Host bridge                              Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 5
                [1022:1466]     00:18.6  Host bridge                              Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 6
                [1022:1467]     00:18.7  Host bridge                              Family 17h (Models 00h-0fh) Data Fabric: Device 18h; Function 7
Group 14:       [144d:a808] [R] 01:00.0  Non-Volatile memory controller           NVMe SSD Controller SM981/PM981/PM983
Group 15:       [1022:43d0] [R] 03:00.0  USB controller                           Device 43d0
USB:            [2972:0047]              Bus 001 Device 003                       FiiO Electronics Technology K3 
USB:            [04d9:0169]              Bus 001 Device 002                       Holtek Semiconductor, Inc. USB Keyboard 
USB:            [1d6b:0002]              Bus 001 Device 001                       Linux Foundation 2.0 root hub 
USB:            [1d6b:0003]              Bus 002 Device 001                       Linux Foundation 3.0 root hub 
                [1022:43c8]     03:00.1  SATA controller                          400 Series Chipset SATA Controller
                [1022:43c6]     03:00.2  PCI bridge                               400 Series Chipset PCIe Bridge
                [1022:43c7] [R] 16:00.0  PCI bridge                               400 Series Chipset PCIe Port
                [1022:43c7]     16:01.0  PCI bridge                               400 Series Chipset PCIe Port
                [1022:43c7]     16:02.0  PCI bridge                               400 Series Chipset PCIe Port
                [1022:43c7]     16:03.0  PCI bridge                               400 Series Chipset PCIe Port
                [1022:43c7]     16:04.0  PCI bridge                               400 Series Chipset PCIe Port
                [8086:1539] [R] 18:00.0  Ethernet controller                      I211 Gigabit Network Connection
                [144d:a808] [R] 1b:00.0  Non-Volatile memory controller           NVMe SSD Controller SM981/PM981/PM983
Group 16:       [1022:1470] [R] 1c:00.0  PCI bridge                               Vega 10 PCIe Bridge
Group 17:       [1022:1471] [R] 1d:00.0  PCI bridge                               Vega 10 PCIe Bridge
Group 18:       [1002:687f] [R] 1e:00.0  VGA compatible controller                Vega 10 XL/XT [Radeon RX Vega 56/64]
Group 19:       [1002:aaf8]     1e:00.1  Audio device                             Vega 10 HDMI Audio [Radeon Vega 56/64]
Group 20:       [10de:1b82] [R] 1f:00.0  VGA compatible controller                GP104 [GeForce GTX 1070 Ti]
                [10de:10f0]     1f:00.1  Audio device                             GP104 High Definition Audio Controller
Group 21:       [1022:145a] [R] 20:00.0  Non-Essential Instrumentation [1300]     Zeppelin/Raven/Raven2 PCIe Dummy Function
Group 22:       [1022:1456]     20:00.2  Encryption controller                    Family 17h (Models 00h-0fh) Platform Security Processor
Group 23:       [1022:145f] [R] 20:00.3  USB controller                           Zeppelin USB 3.0 Host controller
USB:            [046d:c53f]              Bus 003 Device 007                       Logitech, Inc. USB Receiver 
USB:            [1050:0407]              Bus 003 Device 006                       Yubico.com Yubikey 4/5 OTP+U2F+CCID 
USB:            [0bda:5411]              Bus 003 Device 005                       Realtek Semiconductor Corp. RTS5411 Hub 
USB:            [051d:0002]              Bus 003 Device 004                       American Power Conversion Uninterruptible Power Supply 
USB:            [1235:8210]              Bus 003 Device 003                       Focusrite-Novation Scarlett 2i2 Camera 
USB:            [05e3:0610]              Bus 003 Device 002                       Genesys Logic, Inc. Hub 
USB:            [1d6b:0002]              Bus 003 Device 001                       Linux Foundation 2.0 root hub 
USB:            [0781:5581]              Bus 004 Device 004                       SanDisk Corp. Ultra 
USB:            [05e3:0626]              Bus 004 Device 003                       Genesys Logic, Inc. USB3.1 Hub 
USB:            [1d6b:0003]              Bus 004 Device 001                       Linux Foundation 3.0 root hub 
Group 24:       [1022:1455] [R] 21:00.0  Non-Essential Instrumentation [1300]     Zeppelin/Renoir PCIe Dummy Function
Group 25:       [1022:7901]     21:00.2  SATA controller                          FCH SATA Controller [AHCI mode]
Group 26:       [1022:1457]     21:00.3  Audio device                             Family 17h (Models 00h-0fh) HD Audio Controller

Nice shit man! Much better than

  shopt -s nullglob
  for d in /sys/kernel/iommu_groups/{0..999}/devices/*; do
      n=${d#*/iommu_groups/*}; n=${n%%/*}
      printf 'IOMMU Group %s ' "$n"
      lspci -nns "${d##*/}"
  done;

Thank you!

Cool, thank you :)

Crikey!
This is going in my $PATH =]
Thank you very much!

Kik Azz!

Open source router N5105 output:

root@pve ~# ./iommu.sh
Group 0: [8086:4e61] [R] 00:02.0 VGA compatible controller JasperLake [UHD Graphics]
Group 1: [8086:4e24] 00:00.0 Host bridge Device 4e24
Group 2: [8086:4e03] 00:04.0 Signal processing controller Dynamic Tuning service
Group 3: [8086:4ded] 00:14.0 USB controller Device 4ded
USB: [046d:c52b] Bus 001 Device 002 Logitech, Inc. Unifying Receiver
USB: [1d6b:0002] Bus 001 Device 001 Linux Foundation 2.0 root hub
USB: [1d6b:0003] Bus 002 Device 001 Linux Foundation 3.0 root hub
[8086:4def] 00:14.2 RAM memory Device 4def
Group 4: [8086:4de0] 00:16.0 Communication controller Management Engine Interface
Group 5: [8086:4dd3] 00:17.0 SATA controller Device 4dd3
Group 6: [8086:4db8] [R] 00:1c.0 PCI bridge Device 4db8
Group 7: [8086:4dbc] [R] 00:1c.4 PCI bridge Device 4dbc
Group 8: [8086:4dbd] [R] 00:1c.5 PCI bridge Device 4dbd
Group 9: [8086:4dbe] [R] 00:1c.6 PCI bridge Device 4dbe
Group 10: [8086:4dbf] [R] 00:1c.7 PCI bridge Device 4dbf
Group 11: [8086:4d87] 00:1f.0 ISA bridge Device 4d87
[8086:4dc8] 00:1f.3 Audio device Jasper Lake HD Audio
[8086:4da3] 00:1f.4 SMBus Jasper Lake SMBus
[8086:4da4] 00:1f.5 Serial bus controller Jasper Lake SPI Controller
Group 12: [1cc1:8201] [R] 01:00.0 Non-Volatile memory controller XPG SX8200 Pro PCIe Gen3x4 M.2 2280 Solid State Drive
Group 13: [8086:125c] [R] 02:00.0 Ethernet controller Ethernet Controller I226-V
Group 14: [8086:125c] [R] 03:00.0 Ethernet controller Ethernet Controller I226-V
Group 15: [8086:125c] [R] 04:00.0 Ethernet controller Ethernet Controller I226-V
Group 16: [8086:125c] [R] 05:00.0 Ethernet controller Ethernet Controller I226-V