Patchwork update microcode script

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Submitter Stefan Reinauer
Date 2010-05-26 15:54:26
Message ID <4BFD4432.8030602@coresystems.de>
Download mbox | patch
Permalink /patch/1395/
State Accepted, archived
Commit r5593
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Comments

Stefan Reinauer - 2010-05-26 15:54:26
See patch
Myles Watson - 2010-05-26 17:01:12
Acked-by: Myles Watson <mylesgw@gmail.com>

Thanks,
Myles

Patch

Index: src/cpu/intel/microcode/update-microcodes.sh
===================================================================
--- src/cpu/intel/microcode/update-microcodes.sh	(revision 0)
+++ src/cpu/intel/microcode/update-microcodes.sh	(revision 0)
@@ -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
+