1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0+ 3# 4# Run a kvm-based test of the specified tree on the specified configs. 5# Fully automated run and error checking, no graphics console. 6# 7# Execute this in the source tree. Do not run it as a background task 8# because qemu does not seem to like that much. 9# 10# Usage: kvm-test-1-run.sh config resdir seconds qemu-args boot_args_in 11# 12# qemu-args defaults to "-enable-kvm -nographic", along with arguments 13# specifying the number of CPUs and other options 14# generated from the underlying CPU architecture. 15# boot_args_in defaults to value returned by the per_version_boot_params 16# shell function. 17# 18# Anything you specify for either qemu-args or boot_args_in is appended to 19# the default values. The "-smp" value is deduced from the contents of 20# the config fragment. 21# 22# More sophisticated argument parsing is clearly needed. 23# 24# Copyright (C) IBM Corporation, 2011 25# 26# Authors: Paul E. McKenney <paulmck@linux.ibm.com> 27 28T=${TMPDIR-/tmp}/kvm-test-1-run.sh.$$ 29trap 'rm -rf $T' 0 30mkdir $T 31 32. functions.sh 33. $CONFIGFRAG/ver_functions.sh 34 35config_template=${1} 36config_dir=`echo $config_template | sed -e 's,/[^/]*$,,'` 37title=`echo $config_template | sed -e 's/^.*\///'` 38resdir=${2} 39if test -z "$resdir" -o ! -d "$resdir" -o ! -w "$resdir" 40then 41 echo "kvm-test-1-run.sh :$resdir: Not a writable directory, cannot store results into it" 42 exit 1 43fi 44echo ' ---' `date`: Starting build, PID $$ 45echo ' ---' Kconfig fragment at: $config_template >> $resdir/log 46touch $resdir/ConfigFragment.input 47 48# Combine additional Kconfig options into an existing set such that 49# newer options win. The first argument is the Kconfig source ID, the 50# second the to-be-updated file within $T, and the third and final the 51# list of additional Kconfig options. Note that a $2.tmp file is 52# created when doing the update. 53config_override_param () { 54 if test -n "$3" 55 then 56 echo $3 | sed -e 's/^ *//' -e 's/ *$//' | tr -s " " "\012" > $T/Kconfig_args 57 echo " --- $1" >> $resdir/ConfigFragment.input 58 cat $T/Kconfig_args >> $resdir/ConfigFragment.input 59 config_override.sh $T/$2 $T/Kconfig_args > $T/$2.tmp 60 mv $T/$2.tmp $T/$2 61 # Note that "#CHECK#" is not permitted on commandline. 62 fi 63} 64 65echo > $T/KcList 66config_override_param "$config_dir/CFcommon" KcList "`cat $config_dir/CFcommon 2> /dev/null`" 67config_override_param "$config_template" KcList "`cat $config_template 2> /dev/null`" 68config_override_param "--gdb options" KcList "$TORTURE_KCONFIG_GDB_ARG" 69config_override_param "--kasan options" KcList "$TORTURE_KCONFIG_KASAN_ARG" 70config_override_param "--kcsan options" KcList "$TORTURE_KCONFIG_KCSAN_ARG" 71config_override_param "--kconfig argument" KcList "$TORTURE_KCONFIG_ARG" 72cp $T/KcList $resdir/ConfigFragment 73 74base_resdir=`echo $resdir | sed -e 's/\.[0-9]\+$//'` 75if test "$base_resdir" != "$resdir" && test -f $base_resdir/bzImage && test -f $base_resdir/vmlinux 76then 77 # Rerunning previous test, so use that test's kernel. 78 QEMU="`identify_qemu $base_resdir/vmlinux`" 79 BOOT_IMAGE="`identify_boot_image $QEMU`" 80 KERNEL=$base_resdir/${BOOT_IMAGE##*/} # use the last component of ${BOOT_IMAGE} 81 ln -s $base_resdir/Make*.out $resdir # for kvm-recheck.sh 82 ln -s $base_resdir/.config $resdir # for kvm-recheck.sh 83 # Arch-independent indicator 84 touch $resdir/builtkernel 85elif test "$base_resdir" != "$resdir" 86then 87 # Rerunning previous test for which build failed 88 ln -s $base_resdir/Make*.out $resdir # for kvm-recheck.sh 89 ln -s $base_resdir/.config $resdir # for kvm-recheck.sh 90 echo Initial build failed, not running KVM, see $resdir. 91 if test -f $resdir/build.wait 92 then 93 mv $resdir/build.wait $resdir/build.ready 94 fi 95 exit 1 96elif kvm-build.sh $T/KcList $resdir 97then 98 # Had to build a kernel for this test. 99 QEMU="`identify_qemu vmlinux`" 100 BOOT_IMAGE="`identify_boot_image $QEMU`" 101 cp vmlinux $resdir 102 cp .config $resdir 103 cp Module.symvers $resdir > /dev/null || : 104 cp System.map $resdir > /dev/null || : 105 if test -n "$BOOT_IMAGE" 106 then 107 cp $BOOT_IMAGE $resdir 108 KERNEL=$resdir/${BOOT_IMAGE##*/} 109 # Arch-independent indicator 110 touch $resdir/builtkernel 111 else 112 echo No identifiable boot image, not running KVM, see $resdir. 113 echo Do the torture scripts know about your architecture? 114 fi 115 parse-build.sh $resdir/Make.out $title 116else 117 # Build failed. 118 cp .config $resdir || : 119 echo Build failed, not running KVM, see $resdir. 120 if test -f $resdir/build.wait 121 then 122 mv $resdir/build.wait $resdir/build.ready 123 fi 124 exit 1 125fi 126if test -f $resdir/build.wait 127then 128 mv $resdir/build.wait $resdir/build.ready 129fi 130while test -f $resdir/build.ready 131do 132 sleep 1 133done 134seconds=$3 135qemu_args=$4 136boot_args_in=$5 137 138if test -z "$TORTURE_BUILDONLY" 139then 140 echo ' ---' `date`: Starting kernel 141fi 142 143# Generate -smp qemu argument. 144qemu_args="-enable-kvm -nographic $qemu_args" 145cpu_count=`configNR_CPUS.sh $resdir/ConfigFragment` 146cpu_count=`configfrag_boot_cpus "$boot_args_in" "$config_template" "$cpu_count"` 147if test "$cpu_count" -gt "$TORTURE_ALLOTED_CPUS" 148then 149 echo CPU count limited from $cpu_count to $TORTURE_ALLOTED_CPUS | tee -a $resdir/Warnings 150 cpu_count=$TORTURE_ALLOTED_CPUS 151fi 152qemu_args="`specify_qemu_cpus "$QEMU" "$qemu_args" "$cpu_count"`" 153qemu_args="`specify_qemu_net "$qemu_args"`" 154 155# Generate architecture-specific and interaction-specific qemu arguments 156qemu_args="$qemu_args `identify_qemu_args "$QEMU" "$resdir/console.log"`" 157 158# Generate qemu -append arguments 159qemu_append="`identify_qemu_append "$QEMU"`" 160 161# Pull in Kconfig-fragment boot parameters 162boot_args="`configfrag_boot_params "$boot_args_in" "$config_template"`" 163# Generate kernel-version-specific boot parameters 164boot_args="`per_version_boot_params "$boot_args" $resdir/.config $seconds`" 165if test -n "$TORTURE_BOOT_GDB_ARG" 166then 167 boot_args="$boot_args $TORTURE_BOOT_GDB_ARG" 168fi 169 170# Give bare-metal advice 171modprobe_args="`echo $boot_args | tr -s ' ' '\012' | grep "^$TORTURE_MOD\." | sed -e "s/$TORTURE_MOD\.//g"`" 172kboot_args="`echo $boot_args | tr -s ' ' '\012' | grep -v "^$TORTURE_MOD\."`" 173testid_txt="`dirname $resdir`/testid.txt" 174touch $resdir/bare-metal 175echo To run this scenario on bare metal: >> $resdir/bare-metal 176echo >> $resdir/bare-metal 177echo " 1." Set your bare-metal build tree to the state shown in this file: >> $resdir/bare-metal 178echo " " $testid_txt >> $resdir/bare-metal 179echo " 2." Update your bare-metal build tree"'"s .config based on this file: >> $resdir/bare-metal 180echo " " $resdir/ConfigFragment >> $resdir/bare-metal 181echo " 3." Make the bare-metal kernel"'"s build system aware of your .config updates: >> $resdir/bare-metal 182echo " " $ 'yes "" | make oldconfig' >> $resdir/bare-metal 183echo " 4." Build your bare-metal kernel. >> $resdir/bare-metal 184echo " 5." Boot your bare-metal kernel with the following parameters: >> $resdir/bare-metal 185echo " " $kboot_args >> $resdir/bare-metal 186echo " 6." Start the test with the following command: >> $resdir/bare-metal 187echo " " $ modprobe $TORTURE_MOD $modprobe_args >> $resdir/bare-metal 188echo " 7." After some time, end the test with the following command: >> $resdir/bare-metal 189echo " " $ rmmod $TORTURE_MOD >> $resdir/bare-metal 190echo " 8." Copy your bare-metal kernel"'"s .config file, overwriting this file: >> $resdir/bare-metal 191echo " " $resdir/.config >> $resdir/bare-metal 192echo " 9." Copy the console output from just before the modprobe to just after >> $resdir/bare-metal 193echo " " the rmmod into this file: >> $resdir/bare-metal 194echo " " $resdir/console.log >> $resdir/bare-metal 195echo "10." Check for runtime errors using the following command: >> $resdir/bare-metal 196echo " " $ tools/testing/selftests/rcutorture/bin/kvm-recheck.sh `dirname $resdir` >> $resdir/bare-metal 197echo >> $resdir/bare-metal 198echo Some of the above steps may be skipped if you build your bare-metal >> $resdir/bare-metal 199echo kernel here: `head -n 1 $testid_txt | sed -e 's/^Build directory: //'` >> $resdir/bare-metal 200 201echo $QEMU $qemu_args -m $TORTURE_QEMU_MEM -kernel $KERNEL -append \"$qemu_append $boot_args\" $TORTURE_QEMU_GDB_ARG > $resdir/qemu-cmd 202echo "# TORTURE_SHUTDOWN_GRACE=$TORTURE_SHUTDOWN_GRACE" >> $resdir/qemu-cmd 203echo "# seconds=$seconds" >> $resdir/qemu-cmd 204echo "# TORTURE_KCONFIG_GDB_ARG=\"$TORTURE_KCONFIG_GDB_ARG\"" >> $resdir/qemu-cmd 205echo "# TORTURE_JITTER_START=\"$TORTURE_JITTER_START\"" >> $resdir/qemu-cmd 206echo "# TORTURE_JITTER_STOP=\"$TORTURE_JITTER_STOP\"" >> $resdir/qemu-cmd 207echo "# TORTURE_TRUST_MAKE=\"$TORTURE_TRUST_MAKE\"; export TORTURE_TRUST_MAKE" >> $resdir/qemu-cmd 208 209if test -n "$TORTURE_BUILDONLY" 210then 211 echo Build-only run specified, boot/test omitted. 212 touch $resdir/buildonly 213 exit 0 214fi 215 216kvm-test-1-run-qemu.sh $resdir 217