sr_iov kvm 网卡passthrough

#!/bin/bash

trap "" hup

interface_name=$1

function analysis_nodedev_xml()
{
    local pci_name=$1;
    local target_line=""
    virsh nodedev-dumpxml ${pci_name} > ./${pci_name}
    local start_line=$(grep -rn "<iommuGroup"  ./${pci_name} | awk -F ":" '{print $1}')
    local   end_line=$(grep -rn "</iommuGroup" ./${pci_name} | awk -F ":" '{print $1}')
    local addr_lines=$(grep -rn "<addr"        ./${pci_name} | awk -F ":" '{print $1}')
    if [[ -z ${start_line} ]];
    then
        exit
    fi
    if [[ -z ${end_line} ]];
    then
        exit
    fi
    if [[ -n ${addr_lines} ]];
    then
        local addr_arry=(${addr_lines})