[Unit]
Description=CPU microcode updater

[Service]
EnvironmentFile=/etc/conf.d/microcode_ctl
Type=oneshot
ExecStartPre=-/bin/grep -qs ' microcode$' /proc/misc || modprobe -q microcode
ExecStart=/usr/sbin/microcode_ctl -qu -f /lib/firmware/microcode.dat -d $MICROCODE_DEV
ExecStartPost=-[ "$MICROCODE_UNLOAD" = "yes" ] && rmmod microcode >/dev/null 2>&1

[Install]
WantedBy=multi-user.target