#!/bin/bash # # Handle running OE images standalone with QEMU # # Copyright (C) 2006-2011 Linux Foundation # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License version 2 as # published by the Free Software Foundation. # # 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 Street, Fifth Floor, Boston, MA 02110-1301 USA. usage() { MYNAME=`basename $0` echo "" echo "Usage: you can run this script with any valid combination" echo "of the following options (in any order):" echo " QEMUARCH - the qemu machine architecture to use" echo " KERNEL - the kernel image file to use" echo " ROOTFS - the rootfs image file or nfsroot directory to use" echo " MACHINE - the machine name (optional, autodetected from KERNEL filename if unspecified)" echo " RAMFS - boot a ramfs-based image" echo " ISO - boot an ISO image" echo " VM - boot a vmdk image" echo " Simplified QEMU command-line options can be passed with:" echo " nographic - disables video console" echo " serial - enables a serial console on /dev/ttyS0" echo " kvm - enables KVM when running qemux86/qemux86-64 (VT-capable CPU required)" echo " publicvnc - enable a VNC server open to all hosts" echo " qemuparams=\"xyz\" - specify custom parameters to QEMU" echo " bootparams=\"xyz\" - specify custom kernel parameters during boot" echo "" echo "Examples:" echo " $MYNAME qemuarm" echo " $MYNAME qemux86-64 core-image-sato ext3" echo " $MYNAME path/to/bzImage-qemux86.bin path/to/nfsrootdir/ serial" echo " $MYNAME qemux86 ramfs" echo " $MYNAME qemux86 iso" echo " $MYNAME qemux86 qemuparams=\"-m 256\"" echo " $MYNAME qemux86 bootparams=\"psplash=false\"" echo " $MYNAME path/to/<image>-<machine>.vmdk" exit 1 } if [ "x$1" = "x" ]; then usage fi error() { echo "Error: "$* usage } MACHINE=${MACHINE:=""} KERNEL=${KERNEL:=""} ROOTFS=${ROOTFS:=""} VM=${VM:=""} FSTYPE="" LAZY_ROOTFS="" SCRIPT_QEMU_OPT="" SCRIPT_QEMU_EXTRA_OPT="" SCRIPT_KERNEL_OPT="" SERIALSTDIO="" # Determine whether the file is a kernel or QEMU image, and set the # appropriate variables process_filename() { filename=$1 # Extract the filename extension EXT=`echo $filename | awk -F . '{ print \$NF }'` case /$EXT/ in /bin/) # A file ending in .bin is a kernel [ -z "$KERNEL" ] && KERNEL=$filename || \ error "conflicting KERNEL args [$KERNEL] and [$filename]" ;; /ext[234]/|/jffs2/|/btrfs/) # A file ending in a supportted fs type is a rootfs image if [ -z "$FSTYPE" -o "$FSTYPE" = "$EXT" ]; then FSTYPE=$EXT ROOTFS=$filename else error "conflicting FSTYPE types [$FSTYPE] and [$EXT]" fi ;; /vmdk/) FSTYPE=$EXT VM=$filename ;; *) error "unknown file arg [$filename]" ;; esac } # Parse command line args without requiring specific ordering. It's a # bit more complex, but offers a great user experience. KVM_ENABLED="no" while true; do arg=${1} case "$arg" in "qemux86" | "qemux86-64" | "qemuarm" | "qemumips" | "qemumipsel" | "qemumips64" | "qemush4" | "qemuppc") [ -z "$MACHINE" ] && MACHINE=$arg || \ error "conflicting MACHINE types [$MACHINE] and [$arg]" ;; "ext2" | "ext3" | "ext4" | "jffs2" | "nfs" | "btrfs") [ -z "$FSTYPE" -o "$FSTYPE" = "$arg" ] && FSTYPE=$arg || \ error "conflicting FSTYPE types [$FSTYPE] and [$arg]" ;; *-image*) [ -z "$ROOTFS" ] || \ error "conflicting ROOTFS args [$ROOTFS] and [$arg]" if [ -f "$arg" ]; then process_filename $arg elif [ -d "$arg" ]; then # Handle the case where the nfsroot dir has -image- # in the pathname echo "Assuming $arg is an nfs rootfs" FSTYPE=nfs ROOTFS=$arg else ROOTFS=$arg LAZY_ROOTFS="true" fi ;; "ramfs") FSTYPE=cpio.gz RAMFS=true ;; "iso") FSTYPE=iso ISOFS=true ;; "nographic") SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -nographic" SCRIPT_KERNEL_OPT="$SCRIPT_KERNEL_OPT console=ttyS0" ;; "serial") SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -serial stdio" SCRIPT_KERNEL_OPT="$SCRIPT_KERNEL_OPT console=ttyS0" SERIALSTDIO="1" ;; "qemuparams="*) SCRIPT_QEMU_EXTRA_OPT="${arg##qemuparams=}" # Warn user if they try to specify serial or kvm options # to use simplified options instead serial_option=`expr "$SCRIPT_QEMU_EXTRA_OPT" : '.*\(-serial\)'` kvm_option=`expr "$SCRIPT_QEMU_EXTRA_OPT" : '.*\(-enable-kvm\)'` [ ! -z "$serial_option" -o ! -z "$kvm_option" ] && \ error "Please use simplified serial or kvm options instead" ;; "bootparams="*) SCRIPT_KERNEL_OPT="$SCRIPT_KERNEL_OPT ${arg##bootparams=}" ;; "audio") if [ "x$MACHINE" = "xqemux86" -o "x$MACHINE" = "xqemux86-64" ]; then echo "Enabling audio in qemu." echo "Please install snd_intel8x0 or snd_ens1370 driver in linux guest." QEMU_AUDIO_DRV="alsa" SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -soundhw ac97,es1370" fi ;; "kvm") KVM_ENABLED="yes" KVM_CAPABLE=`grep -q 'vmx\|svm' /proc/cpuinfo && echo 1` ;; "publicvnc") SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -vnc 0.0.0.0:0" ;; "") break ;; *) # A directory name is an nfs rootfs if [ -d "$arg" ]; then echo "Assuming $arg is an nfs rootfs" if [ -z "$FSTYPE" -o "$FSTYPE" = "nfs" ]; then FSTYPE=nfs else error "conflicting FSTYPE types [$arg] and nfs" fi if [ -z "$ROOTFS" ]; then ROOTFS=$arg else error "conflicting ROOTFS args [$ROOTFS] and [$arg]" fi elif [ -f "$arg" ]; then process_filename $arg else error "unable to classify arg [$arg]" fi ;; esac shift done if [ ! -c /dev/net/tun ] ; then echo "TUN control device /dev/net/tun is unavailable; you may need to enable TUN (e.g. sudo modprobe tun)" exit 1 elif [ ! -w /dev/net/tun ] ; then echo "TUN control device /dev/net/tun is not writable, please fix (e.g. sudo chmod 666 /dev/net/tun)" exit 1 fi # Report errors for missing combinations of options if [ -z "$MACHINE" -a -z "$KERNEL" -a -z "$VM" ]; then error "you must specify at least a MACHINE, VM, or KERNEL argument" fi if [ "$FSTYPE" = "nfs" -a -z "$ROOTFS" ]; then error "NFS booting without an explicit ROOTFS path is not yet supported" fi if [ -z "$MACHINE" ]; then if [ "x$FSTYPE" = "xvmdk" ]; then MACHINE=`basename $VM | sed 's/.*\(qemux86-64\|qemux86\|qemuarm\|qemumips64\|qemumips\|qemuppc\|qemush4\).*/\1/'` if [ -z "$MACHINE" ]; then error "Unable to set MACHINE from vmdk filename [$VM]" fi echo "Set MACHINE to [$MACHINE] based on vmdk [$VM]" else MACHINE=`basename $KERNEL | sed 's/.*\(qemux86-64\|qemux86\|qemuarm\|qemumips64\|qemumips\|qemuppc\|qemush4\).*/\1/'` if [ -z "$MACHINE" ]; then error "Unable to set MACHINE from kernel filename [$KERNEL]" fi echo "Set MACHINE to [$MACHINE] based on kernel [$KERNEL]" fi fi YOCTO_KVM_WIKI="https://wiki.yoctoproject.org/wiki/How_to_enable_KVM_for_Poky_qemu" YOCTO_PARAVIRT_KVM_WIKI="https://wiki.yoctoproject.org/wiki/Running_an_x86_Yocto_Linux_image_under_QEMU_KVM" # Detect KVM configuration if [ "x$KVM_ENABLED" = "xyes" ]; then if [ -z "$KVM_CAPABLE" ]; then echo "You are trying to enable KVM on a cpu without VT support." echo "Remove kvm from the command-line, or refer" echo "$YOCTO_KVM_WIKI"; exit 1; fi if [ "x$MACHINE" != "xqemux86" -a "x$MACHINE" != "xqemux86-64" ]; then echo "KVM only support x86 & x86-64. Remove kvm from the command-line"; exit 1; fi if [ ! -e /dev/kvm ]; then echo "Missing KVM device. Have you inserted kvm modules?" echo "For further help see:" echo "$YOCTO_KVM_WIKI"; exit 1; fi if [ ! -e /dev/vhost-net ]; then echo "Missing virtio net device. Have you inserted vhost-net module?" echo "For further help see:" echo "$YOCTO_PARAVIRT_KVM_WIKI"; exit 1; fi if [ -w /dev/kvm -a -r /dev/kvm ]; then SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -enable-kvm -cpu host" KVM_ACTIVE="yes" else echo "You have no rights on /dev/kvm." echo "Please change the ownership of this file as described at:" echo "$YOCTO_KVM_WIKI"; exit 1; fi if [ ! -w /dev/vhost-net -o ! -r /dev/vhost-net ]; then echo "You have no rights on /dev/vhost-net." echo "Please change the ownership of this file as described at:" echo "$YOCTO_PARAVIRT_KVM_WIKI"; exit 1; fi fi machine2=`echo $MACHINE | tr 'a-z' 'A-Z' | sed 's/-/_/'` # MACHINE is now set for all cases # Defaults used when these vars need to be inferred QEMUX86_DEFAULT_KERNEL=bzImage-qemux86.bin QEMUX86_DEFAULT_FSTYPE=ext3 QEMUX86_64_DEFAULT_KERNEL=bzImage-qemux86-64.bin QEMUX86_64_DEFAULT_FSTYPE=ext3 QEMUARM_DEFAULT_KERNEL=zImage-qemuarm.bin QEMUARM_DEFAULT_FSTYPE=ext3 QEMUMIPS_DEFAULT_KERNEL=vmlinux-qemumips.bin QEMUMIPS_DEFAULT_FSTYPE=ext3 QEMUMIPSEL_DEFAULT_KERNEL=vmlinux-qemumipsel.bin QEMUMIPSEL_DEFAULT_FSTYPE=ext3 QEMUMIPS64_DEFAULT_KERNEL=vmlinux-qemumips64.bin QEMUMIPS64_DEFAULT_FSTYPE=ext3 QEMUSH4_DEFAULT_KERNEL=vmlinux-qemumips.bin QEMUSH4_DEFAULT_FSTYPE=ext3 QEMUPPC_DEFAULT_KERNEL=vmlinux-qemuppc.bin QEMUPPC_DEFAULT_FSTYPE=ext3 AKITA_DEFAULT_KERNEL=zImage-akita.bin AKITA_DEFAULT_FSTYPE=jffs2 SPITZ_DEFAULT_KERNEL=zImage-spitz.bin SPITZ_DEFAULT_FSTYPE=ext3 setup_tmpdir() { if [ -z "$OE_TMPDIR" ]; then # Try to get OE_TMPDIR from bitbake type -P bitbake &>/dev/null || { echo "In order for this script to dynamically infer paths"; echo "to kernels or filesystem images, you either need"; echo "bitbake in your PATH or to source oe-init-build-env"; echo "before running this script" >&2; exit 1; } # We have bitbake in PATH, get OE_TMPDIR from bitbake OE_TMPDIR=`MACHINE=$MACHINE bitbake -e | grep ^TMPDIR=\" | cut -d '=' -f2 | cut -d '"' -f2` if [ -z "$OE_TMPDIR" ]; then # Check for errors from bitbake that the user needs to know about BITBAKE_OUTPUT=`bitbake -e | wc -l` if [ "$BITBAKE_OUTPUT" -eq "0" ]; then echo "Error: this script needs to be run from your build directory," echo "or you need to explicitly set OE_TMPDIR in your environment" else echo "There was an error running bitbake to determine TMPDIR" echo "Here is the output from 'bitbake -e':" bitbake -e fi exit 1 fi fi } setup_sysroot() { # Toolchain installs set up $OECORE_NATIVE_SYSROOT in their # environment script. If that variable isn't set, we're # either in an in-tree build scenario or the environment # script wasn't source'd. if [ -z "$OECORE_NATIVE_SYSROOT" ]; then setup_tmpdir BUILD_ARCH=`uname -m` BUILD_OS=`uname | tr '[A-Z]' '[a-z]'` BUILD_SYS="$BUILD_ARCH-$BUILD_OS" OECORE_NATIVE_SYSROOT=$OE_TMPDIR/sysroots/$BUILD_SYS fi } # Locate a rootfs image to boot which matches our expected # machine and fstype. findimage() { where=$1 machine=$2 extension=$3 # Sort rootfs candidates by modification time - the most # recently created one is the one we most likely want to boot. filenames=`ls -t $where/*-image*$machine.$extension 2>/dev/null | xargs` for name in $filenames; do case $name in *core-image-sato* | \ *core-image-lsb* | \ *core-image-basic* | \ *core-image-minimal* ) ROOTFS=$name return ;; esac done echo "Couldn't find a $machine rootfs image in $where." exit 1 } if [ -e "$ROOTFS" -a -z "$FSTYPE" ]; then # Extract the filename extension EXT=`echo $ROOTFS | awk -F . '{ print \$NF }'` if [ "x$EXT" = "xext2" -o "x$EXT" = "xext3" -o \ "x$EXT" = "xjffs2" -o "x$EXT" = "xbtrfs" -o \ "x$EXT" = "xext4" ]; then FSTYPE=$EXT else echo "Note: Unable to determine filesystem extension for $ROOTFS" echo "We will use the default FSTYPE for $MACHINE" # ...which is done further below... fi fi if [ -z "$KERNEL" -a "x$FSTYPE" != "xvmdk" ]; then setup_tmpdir eval kernel_file=\$${machine2}_DEFAULT_KERNEL KERNEL=$OE_TMPDIR/deploy/images/$kernel_file if [ -z "$KERNEL" ]; then error "Unable to determine default kernel for MACHINE [$MACHINE]" fi fi # KERNEL is now set for all cases if [ -z "$FSTYPE" ]; then eval FSTYPE=\$${machine2}_DEFAULT_FSTYPE if [ -z "$FSTYPE" ]; then error "Unable to determine default fstype for MACHINE [$MACHINE]" fi fi # FSTYPE is now set for all cases # Handle cases where a ROOTFS type is given instead of a filename, e.g. # core-image-sato if [ "$LAZY_ROOTFS" = "true" ]; then setup_tmpdir echo "Assuming $ROOTFS really means $OE_TMPDIR/deploy/images/$ROOTFS-$MACHINE.$FSTYPE" ROOTFS=$OE_TMPDIR/deploy/images/$ROOTFS-$MACHINE.$FSTYPE fi if [ -z "$ROOTFS" -a "x$FSTYPE" != "xvmdk" ]; then setup_tmpdir T=$OE_TMPDIR/deploy/images eval rootfs_list=\$${machine2}_DEFAULT_ROOTFS findimage $T $MACHINE $FSTYPE if [ -z "$ROOTFS" ]; then error "Unable to determine default rootfs for MACHINE [$MACHINE]" fi fi # ROOTFS is now set for all cases echo "" echo "Continuing with the following parameters:" if [ "x$FSTYPE" != "xvmdk" ]; then echo "KERNEL: [$KERNEL]" echo "ROOTFS: [$ROOTFS]" else echo "VMDK: [$VM]" fi echo "FSTYPE: [$FSTYPE]" setup_sysroot # OECORE_NATIVE_SYSROOT is now set for all cases INTERNAL_SCRIPT="$0-internal" if [ ! -f "$INTERNAL_SCRIPT" -o ! -r "$INTERNAL_SCRIPT" ]; then INTERNAL_SCRIPT=`which runqemu-internal` fi . $INTERNAL_SCRIPT exit $?