Re: [coreboot] Intel microcode update script

[Keith Hui]

A question. How is one supposed to make use of this script?

As part of my effort to re-enable L2 cache on SECC Pentium 2/3s I'd
also split off model_63x, model_65x and model_67x (patch submitted
earlier and fell into limbo) and introduce all available microcode to
the family. Actually I would like to see one folder and one microcode
update file for one family of CPUs. Less overhead on so many fronts -
number of files, compiler processing and license headers.

Regards
Keith
> Message: 3
> Date: Wed, 26 May 2010 19:08:14 +0200
> From: repository service 
> To: [e-mail]
> Subject: [coreboot] [commit] r5593 - trunk/src/cpu/intel/microcode
> Message-ID: 
> Content-Type: text/plain; charset=UTF-8
>
> Author: stepan
> Date: Wed May 26 19:08:13 2010
> New Revision: 5593
> URL: https://tracker.coreboot.org/trac/coreboot/changeset/5593
>
> Log:
> Update Intel microcode include files from their web page.
> This still requires someone to adjust the #includes in the
> model_XXX_init.c files but with a script we're getting closer
> to automate the update of 3rd party files.
>
> Signed-off-by: Stefan Reinauer 
> Acked-by: Myles Watson
>
> Added:
>   trunk/src/cpu/intel/microcode/update-microcodes.sh
> Added: trunk/src/cpu/intel/microcode/update-microcodes.sh
>
> --- /dev/null   00:00:00 1970   (empty, because file is newly added)
> +++ trunk/src/cpu/intel/microcode/update-microcodes.sh  Wed May 26 19:08:13 2010        (r5593)
> @@ -0,0 +1,107 @@
> +#!/bin/bash
> +#
> +# This file is part of the coreboot project.
> +#
> +# Copyright (C) 2007-2010 coresystems GmbH
> +#
> +# This program is free software; you can redistribute it and/or modify
> +# it under the terms of the GNU General Public License as published by
> +# the Free Software Foundation; version 2 of the License.
> +#
> +# This program is distributed in the hope that it will be useful,
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> +# GNU General Public License for more details.
> +#
> +# You should have received a copy of the GNU General Public License
> +# along with this program; if not, write to the Free Software
> +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
> +#
>
> +MICROCODE_VERSION=20100209
> +MICROCODE_ARCHIVE=microcode-$MICROCODE_VERSION.tgz
> +MICROCODE_FILE=microcode-$MICROCODE_VERSION.dat
> +INTEL_MICROCODE=http://downloadmirror.intel.com/18683/eng/$MICROCODE_ARCHIVE
>
> +#
> +# Getting Intel(R) Microcode
> +#
>
> +get_microcode() {
> printf "Getting microcode...\n"
> wget -nv $INTEL_MICROCODE
> tar xzf $MICROCODE_ARCHIVE
>
> +}
>
> +#
> +# Creating separate files per microcode
> +#
>
> +separate_microcode() {
> printf "Separating microcode...\n"
> csplit -s -n4 -k microcode-20100209.dat '/^/*.*.inc.**//' '{500}' 2> /dev/null
> mv xx0000 header.inc
> perl -pi -e 's,\ \ \ \ \ \ \ ,\    ,' header.inc
> perl -pi -e 's,^,/,g' header.inc
> perl -pi -e 's,^//*,/*,' header.inc
> for i in xx????; do
> name="`head -1 $i`"
> name=${name%??}
> name=${name:2}
> name=$( echo $name )
> name=microcode-${name%.inc}.h
> cat header.inc $i > $name
> done
> rm -f xx???? header.inc
>
> +}
>
> +#
> +# Dump CPUIDs from all separated files
> +#
>
> +dump_cpuids() {
> ls -1 microcode-*.h | while read F; do
> CPUID="$( echo $( head -36 $F |tail -1|cut -d, -f4|sed s,0x,, ) | sed 's/0*//')"
> echo "$CPUID:$F"
> done
>
> +}
>
> +#
> +# Move microcode to target positions
> +#
>
> +move_microcode() {
> printf "Moving microcode...\n"
> dump_cpuids | sort | while read N; do
> ID=$( echo $N | cut -d: -f1 )
> F=$( echo $N | cut -d: -f2 )
> if [ -d ../model_$ID ]; then
> echo "Model: $ID  Microcode: $F"
> mv $F ../model_$ID/$F
> else
> ID2=${ID%?}x
> if [ -d ../model_$ID2 ]; then
> echo "Model: $ID($ID2)  Microcode: $F (copied)"
> mv $F ../model_$ID2/$F
> else
> ID1=${ID%??}xx
> if [ -d ../model_$ID1 ]; then
> echo "Model: $ID($ID1)  Microcode: $F (copied)"
> mv $F ../model_$ID1/$F
> else
> echo "Model: $ID  Microcode: $F (erased)"
> rm -f $F
> fi
> fi
> fi
> done
>
> +}
>
> +get_microcode
> +separate_microcode
> +move_microcode
>
> +rm -f $MICROCODE_ARCHIVE
> +rm -f $MICROCODE_FILE