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KubeVirt SR-IOV setup helper script
#!/bin/bash
get_sriov_pci_root_addresses() {
for dir in $(find /sys/devices/ -name sriov_totalvfs -exec dirname {} \;); do
if [ $(cat $dir/sriov_numvfs) -gt 0 ]; then
# use perl because sed doesn't support non-greedy matching
basename $dir | perl -pe 's|(.*?:)(.*)|\2|'
fi
done
}
create_pci_string() {
local quoted_values=($(echo "${pci_addresses[@]}" | xargs printf "\"%s\" " ))
local quoted_as_string=${quoted_values[@]}
if [ "$quoted_as_string" = "\"\"" ]; then
pci_string=""
else
pci_string=${quoted_as_string// /, }
fi
}
sriov_device_plugin() {
pci_addresses=$(get_sriov_pci_root_addresses)
create_pci_string
cat <<EOF > /etc/pcidp/config.json
{
"resourceList":
[
{
"resourceName": "sriov",
"rootDevices": [$pci_string],
"sriovMode": true,
"deviceType": "vfio"
}
]
}
EOF
}
mkdir -p /etc/pcidp
sriov_device_plugin
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