#!/bin/bash

. /etc/rc.conf
. /etc/rc.d/functions

DEVICE=/dev/cpu/microcode
RETVAL=0
MODULE=0

case "$1" in
start|restart|load)
	stat_busy "Applying Intel IA32 Microcode update"
	# Lets just be sure we have a device file...
	if [ ! -e $DEVICE ]; then
		modprobe microcode
		if [ $? -le 0 ]; then
			MODULE=1
		else
			stat_fail
			echo "$0: microcode device $DEVICE doesn't exist"
			exit 1
		fi
	fi

	if [ ! -c $DEVICE ]; then
		echo "$0: $DEVICE not a character device"
		stat_fail
		exit 1
	fi

	/usr/sbin/microcode_ctl -Qu
	RETVAL=$?
	if [ $RETVAL -le 0 ]; then
		stat_done
		if [ $MODULE = 1 ]; then
			modprobe -r microcode
		fi
	else
		stat_fail
		# trap the most common cases
		if [ $RETVAL -eq 3 ]; then
			echo "$0: Cannot find source file \"/etc/microcode.dat\""
		elif [ $RETVAL -eq 19 ]; then
			grep MICROCODE /usr/include/linux/autoconf.h | grep -q ^#define
			if [ $? -ne 0 ]; then
				echo "$0: This kernel doesn't appear to have microcode device support"
			fi
		fi
	fi
	;;
stop)
	;;
*)
	echo "usage: $0 {start|restart}"  
esac