查询IOMMU分组

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记录一下查询IOMMU分组的命令

总共2个, 一个简单一个比较复杂

简单一句话

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

输出如下:

IOMMU Group 63 43:00.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] [1022:7901] (rev 51)
IOMMU Group 64 44:00.0 SATA controller [0106]: Advanced Micro Devices, Inc. [AMD] FCH SATA Controller [AHCI mode] [1022:7901] (rev 51)

详细直观

from github

#!/bin/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

输出

Group 0:	[1022:1482]     c0:01.0  Host bridge                              Starship/Matisse PCIe Dummy Host Bridge
Group 1:	[1022:1482]     c0:02.0  Host bridge                              Starship/Matisse PCIe Dummy Host Bridge
Group 2:	[1022:1482]     c0:03.0  Host bridge                              Starship/Matisse PCIe Dummy Host Bridge
		[1022:1483] [R] c0:03.1  PCI bridge                               Starship/Matisse GPP Bridge
		[1022:1483] [R] c0:03.2  PCI bridge                               Starship/Matisse GPP Bridge
		[1022:1483] [R] c0:03.4  PCI bridge                               Starship/Matisse GPP Bridge
		[1022:1483] [R] c0:03.5  PCI bridge                               Starship/Matisse GPP Bridge
		[1a03:1150] [R] c1:00.0  PCI bridge                               AST1150 PCI-to-PCI Bridge
		[1a03:2000] [R] c2:00.0  VGA compatible controller                ASPEED Graphics Family
		[1b21:1142] [R] c3:00.0  USB controller                           ASM1042A USB 3.0 Host Controller
USB:		[051d:0002]		 Bus 001 Device 002                       American Power Conversion Uninterruptible Power Supply
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
		[8086:1533] [R] c4:00.0  Ethernet controller                      I210 Gigabit Network Connection
		[8086:1533] [R] c5:00.0  Ethernet controller                      I210 Gigabit Network Connection
Group 3:	[1022:1482]     c0:04.0  Host bridge                              Starship/Matisse PCIe Dummy Host Bridge
Group 4:	[1022:1482]     c0:05.0  Host bridge                              Starship/Matisse PCIe Dummy Host Bridge

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