rpms/microcode_ctl
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- Only enable microcode_ctl service if the CPU is capable.

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- Prevent microcode_ctl getting restarted multiple times on initlevel
    change (#141581)
- Make restart/reload work properly
- Do nothing if not started by root.
This commit is contained in:
Dave Jones 2005-01-14 07:42:02 +00:00
parent b59a59af91
commit 5c39a8d890
2 changed files with 38 additions and 39 deletions
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52
microcode_ctl.init
View File

@ -9,50 +9,43 @@
# PROGRAM the executable to run
# ARGUMENTS the argument we're going to call PROGRAM with
# Check that we're a priviledged user
[ `id -u` = 0 ] || exit 0
DEVICE=/dev/cpu/microcode
ARGUMENTS=-Qu
RETVAL=0
PROGRAM=/sbin/microcode_ctl
# Lets just be sure we have a device file...
if [ ! -e $DEVICE ];
then
if [ ! -e $DEVICE ]; then
echo $"$0: microcode device $DEVICE doesn't exist?"
exit 1
elif [ ! -c $DEVICE ];
then
elif [ ! -c $DEVICE ]; then
echo $"$0: $DEVICE not a character device?"
exit 1
fi
if [ ! -e /etc/firmware/microcode.dat ];
then
if [ ! -e /etc/firmware/microcode.dat ]; then
echo $"$0: microcode datafile not present (/etc/firmware/microcode.dat)"
exit 1
fi
. /etc/init.d/functions
RETVAL=0
# perform the update
function start ()
{
RETVAL=1
# Make sure we are on an intel machine
vendor=`cat /proc/cpuinfo | \
grep "^vendor_id" | sort -u | \
awk -F ": " '{ print $2 }'`
if [ "$vendor" != "GenuineIntel" ]; then
return
fi
vendor=`cat /proc/cpuinfo | grep "^vendor_id" | sort -u | awk -F ": " '{ print $2 }'`
[ "$vendor" != "GenuineIntel" ] && return
# Microcode wasn't available until 686's.
family=`cat /proc/cpuinfo | \
grep "^cpu family" | sort -u | \
awk -F ": " '{ print $2 }'`
if [ $family -lt 6 ]; then
return
fi
family=`cat /proc/cpuinfo | grep "^cpu family" | sort -u | awk -F ": " '{ print $2 }'`
[ $family -lt 6 ] && return
echo -n $"Applying Intel Microcode update: "
@ -69,25 +62,38 @@ function start ()
RETVAL=$?
# trap the most common case, errno 19 = no device
if [ $RETVAL -eq 19 ];
then
if [ $RETVAL -eq 19 ]; then
echo $"$0: kernel does not have microcode device support"
fi
/sbin/rmmod microcode
echo
[ $RETVAL -eq 0 ] && touch /var/lock/subsys/microcode_ctl
return $RETVAL
}
stop()
{
rm -f /var/lock/subsys/microcode_ctl
}
case "$1" in
start|reload|force-reload|restart)
start)
start
exit 0
;;
stop)
stop
;;
restart|reload|force-reload)
stop
start
;;
status)
;;
*)
echo $"Usage: $0 {start|restart}"
echo $"Usage: $0 {start|stop|restart}"
exit 1
esac
exit $?

25
microcode_ctl.spec
View File

@ -65,35 +65,28 @@ if [ "$1" = "0" ] ; then
fi
%post
# Only enable on Intel machines.
# Only enable on Intel 686's and above.
vendor=`cat /proc/cpuinfo | grep "^vendor_id" | sort -u | awk -F ": " '{ print $2 }'`
if [ "$vendor" != "GenuineIntel" ]; then
exit 0;
fi
# Microcode wasn't available until 686's.
[ "$vendor" != "GenuineIntel" ] && exit 0
family=`cat /proc/cpuinfo | grep "^cpu family" | sort -u | awk -F ": " '{ print $2 }'`
if [ $family -lt 6 ]; then
exit 0;
fi
[ $family -lt 6 ] && exit 0
/sbin/chkconfig --add microcode_ctl
%triggerpostun -- kernel-utils
# Only enable on Intel machines.
# Only enable on Intel 686's and above.
vendor=`cat /proc/cpuinfo | grep "^vendor_id" | sort -u | awk -F ": " '{ print $2 }'`
if [ "$vendor" != "GenuineIntel" ]; then
exit 0;
fi
# Microcode wasn't available until 686's.
[ "$vendor" != "GenuineIntel" ] && exit 0
family=`cat /proc/cpuinfo | grep "^cpu family" | sort -u | awk -F ": " '{ print $2 }'`
if [ $family -lt 6 ]; then
exit 0;
fi
[ $family -lt 6 ] && exit 0
/sbin/chkconfig --add microcode_ctl
exit 0
%changelog
* Fri Jan 14 2005 Dave Jones <davej@redhat.com>
- Only enable microcode_ctl service if the CPU is capable.
- Prevent microcode_ctl getting restarted multiple times on initlevel change (#141581)
- Make restart/reload work properly
- Do nothing if not started by root.
* Wed Jan 12 2005 Dave Jones <davej@redhat.com>
- Adjust dev node location. (#144963)