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|
#!/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`
cat <<_EOF
Usage: you can run this script with any valid combination
of the following environment variables (in any order):
KERNEL - the kernel image file to use
ROOTFS - the rootfs image file or nfsroot directory to use
MACHINE - the machine name (optional, autodetected from KERNEL filename if unspecified)
Simplified QEMU command-line options can be passed with:
nographic - disables video console
serial - enables a serial console on /dev/ttyS0
kvm - enables KVM when running qemux86/qemux86-64 (VT-capable CPU required)
kvm-vhost - enables KVM with vhost support when running qemux86/qemux86-64 (VT-capable CPU required)
publicvnc - enable a VNC server open to all hosts
qemuparams="xyz" - specify custom parameters to QEMU
bootparams="xyz" - specify custom kernel parameters during boot
Examples:
$MYNAME qemuarm
$MYNAME qemux86-64 core-image-sato ext4
$MYNAME qemux86-64 wic-image-minimal wic
$MYNAME path/to/bzImage-qemux86.bin path/to/nfsrootdir/ serial
$MYNAME qemux86 iso/hddimg/vmdk/qcow2/vdi/ramfs/cpio.gz...
$MYNAME qemux86 qemuparams="-m 256"
$MYNAME qemux86 bootparams="psplash=false"
$MYNAME path/to/<image>-<machine>.vmdk
$MYNAME path/to/<image>-<machine>.wic
_EOF
exit 1
}
if [ "x$1" = "x" ]; then
usage
fi
error() {
echo "Error: "$*
usage
}
MACHINE=${MACHINE:=""}
KERNEL=${KERNEL:=""}
ROOTFS=${ROOTFS:=""}
FSTYPE=${FSTYPE:=""}
LAZY_ROOTFS=""
SCRIPT_QEMU_OPT=""
SCRIPT_QEMU_EXTRA_OPT=""
SCRIPT_KERNEL_OPT=""
SERIALSTDIO=""
TCPSERIAL_PORTNUM=""
KVM_ENABLED="no"
KVM_ACTIVE="no"
VHOST_ENABLED="no"
VHOST_ACTIVE="no"
IS_VM="false"
# 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 [$EXT]"
fi
;;
/hddimg/|/hdddirect/|/vmdk/|/wic/|/qcow2/|/vdi/)
FSTYPE=$EXT
VM=$filename
ROOTFS=$filename
IS_VM="true"
;;
*)
error "unknown file arg [$filename]"
;;
esac
}
check_fstype_conflicts() {
if [ -z "$FSTYPE" -o "$FSTYPE" = "$1" ]; then
FSTYPE=$1
else
error "conflicting FSTYPE types [$FSTYPE] and [$1]"
fi
}
# Parse command line args without requiring specific ordering. It's a
# bit more complex, but offers a great user experience.
while true; do
arg=${1}
case "$arg" in
"qemux86" | "qemux86-64" | "qemuarm" | "qemuarm64" | "qemumips" | "qemumipsel" | \
"qemumips64" | "qemush4" | "qemuppc" | "qemumicroblaze" | "qemuzynq")
[ -z "$MACHINE" -o "$MACHINE" = "$arg" ] && MACHINE=$arg || \
error "conflicting MACHINE types [$MACHINE] and [$arg]"
;;
"ext"[234] | "jffs2" | "nfs" | "btrfs")
check_fstype_conflicts $arg
;;
"hddimg" | "hdddirect" | "wic" | "vmdk" | "qcow2" | "vdi" | "iso")
check_fstype_conflicts $arg
IS_VM="true"
;;
"ramfs" | "cpio.gz")
FSTYPE=cpio.gz
;;
"nographic")
SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -nographic"
SCRIPT_KERNEL_OPT="$SCRIPT_KERNEL_OPT console=ttyS0"
;;
"serial")
SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -serial stdio"
SCRIPT_KERNEL_OPT="$SCRIPT_KERNEL_OPT console=ttyS0"
SERIALSTDIO="1"
;;
"tcpserial="*)
TCPSERIAL_PORTNUM=${arg##tcpserial=}
;;
"biosdir="*)
CUSTOMBIOSDIR="${arg##biosdir=}"
;;
"biosfilename="*)
SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -bios ${arg##biosfilename=}"
;;
"qemuparams="*)
SCRIPT_QEMU_EXTRA_OPT="${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" : '.*\(-enable-kvm\)'`
vga_option=`expr "$SCRIPT_QEMU_EXTRA_OPT" : '.*\(-vga\)'`
[ ! -z "$serial_option" -o ! -z "$kvm_option" ] && \
echo "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`
;;
"kvm-vhost")
KVM_ENABLED="yes"
KVM_CAPABLE=`grep -q 'vmx\|svm' /proc/cpuinfo && echo 1`
VHOST_ENABLED="yes"
;;
"slirp")
SLIRP_ENABLED="yes"
;;
"publicvnc")
SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -vnc :0"
;;
*-image*)
[ -z "$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=$arg
LAZY_ROOTFS="true"
fi
;;
"") break ;;
*)
# A directory name is an nfs rootfs
if [ -d "$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 "$VM" -a "$FSTYPE" != "wic" ]; then
error "you must specify at least a MACHINE 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 "$MACHINE" ]; then
if [ "$IS_VM" = "true" ]; then
[ "x$FSTYPE" = "xwic" ] && filename=$ROOTFS || filename=$VM
MACHINE=`basename $filename | sed -n 's/.*\(qemux86-64\|qemux86\|qemuarm64\|qemuarm\|qemumips64\|qemumips\|qemuppc\|qemush4\).*/\1/p'`
if [ -z "$MACHINE" ]; then
error "Unable to set MACHINE from image filename [$VM]"
fi
echo "Set MACHINE to [$MACHINE] based on image [$VM]"
else
MACHINE=`basename $KERNEL | sed -n 's/.*\(qemux86-64\|qemux86\|qemuarm64\|qemuarm\|qemumips64\|qemumips\|qemuppc\|qemush4\).*/\1/p'`
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 [ -w /dev/kvm -a -r /dev/kvm ]; then
SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -enable-kvm"
KVM_ACTIVE="yes"
else
echo "You have no rights on /dev/kvm."
echo "Please change the ownership of this file as described at:"
echo "$YOCTO_KVM_WIKI";
exit 1;
fi
if [ "x$VHOST_ENABLED" = "xyes" ]; then
if [ ! -e /dev/vhost-net ]; then
echo "Missing virtio net device. Have you inserted vhost-net module?"
echo "For further help see:"
echo "$YOCTO_PARAVIRT_KVM_WIKI";
exit 1;
fi
if [ -w /dev/vhost-net -a -r /dev/vhost-net ]; then
VHOST_ACTIVE="yes"
else
echo "You have no rights on /dev/vhost-net."
echo "Please change the ownership of this file as described at:"
echo "$YOCTO_KVM_WIKI";
exit 1;
fi
fi
fi
machine2=`echo $MACHINE | tr 'a-z' 'A-Z' | sed 's/-/_/'`
# MACHINE is now set for all cases
# Defaults used when these vars need to be inferred
QEMUX86_DEFAULT_KERNEL=bzImage-qemux86.bin
QEMUX86_DEFAULT_FSTYPE=ext4
QEMUX86_64_DEFAULT_KERNEL=bzImage-qemux86-64.bin
QEMUX86_64_DEFAULT_FSTYPE=ext4
QEMUARM_DEFAULT_KERNEL=zImage-qemuarm.bin
QEMUARM_DEFAULT_FSTYPE=ext4
QEMUARM64_DEFAULT_KERNEL=Image-qemuarm64.bin
QEMUARM64_DEFAULT_FSTYPE=ext4
QEMUMIPS_DEFAULT_KERNEL=vmlinux-qemumips.bin
QEMUMIPS_DEFAULT_FSTYPE=ext4
QEMUMIPSEL_DEFAULT_KERNEL=vmlinux-qemumipsel.bin
QEMUMIPSEL_DEFAULT_FSTYPE=ext4
QEMUMIPS64_DEFAULT_KERNEL=vmlinux-qemumips64.bin
QEMUMIPS64_DEFAULT_FSTYPE=ext4
QEMUSH4_DEFAULT_KERNEL=vmlinux-qemumips.bin
QEMUSH4_DEFAULT_FSTYPE=ext4
QEMUPPC_DEFAULT_KERNEL=vmlinux-qemuppc.bin
QEMUPPC_DEFAULT_FSTYPE=ext4
QEMUMICROBLAZE_DEFAULT_KERNEL=linux.bin.ub
QEMUMICROBLAZE_DEFAULT_FSTYPE=cpio
QEMUZYNQ_DEFAULT_KERNEL=uImage
QEMUZYNQ_DEFAULT_FSTYPE=cpio
setup_path_vars() {
if [ -z "$OE_TMPDIR" ] ; then
PATHS_REQUIRED=true
elif [ "$1" = "1" -a -z "$DEPLOY_DIR_IMAGE" ] ; then
PATHS_REQUIRED=true
else
PATHS_REQUIRED=false
fi
if [ "$PATHS_REQUIRED" = "true" ]; then
# Try to get the variable values from bitbake
type -P bitbake &>/dev/null || {
echo "In order for this script to dynamically infer paths";
echo "to kernels or filesystem images, you either need";
echo "bitbake in your PATH or to source oe-init-build-env";
echo "before running this script" >&2;
exit 1; }
# We have bitbake in PATH, get the variable values from bitbake
BITBAKE_ENV_TMPFILE=`mktemp --tmpdir runqemu.XXXXXXXXXX`
if [ "$?" != "0" ] ; then
echo "Error: mktemp failed for bitbake environment output"
exit 1
fi
MACHINE=$MACHINE bitbake -e > $BITBAKE_ENV_TMPFILE
if [ -z "$OE_TMPDIR" ] ; then
OE_TMPDIR=`sed -n 's/^TMPDIR=\"\(.*\)\"/\1/p' $BITBAKE_ENV_TMPFILE`
fi
if [ -z "$DEPLOY_DIR_IMAGE" ] ; then
DEPLOY_DIR_IMAGE=`sed -n 's/^DEPLOY_DIR_IMAGE=\"\(.*\)\"/\1/p' $BITBAKE_ENV_TMPFILE`
fi
if [ -z "$OE_TMPDIR" ]; then
# Check for errors from bitbake that the user needs to know about
BITBAKE_OUTPUT=`cat $BITBAKE_ENV_TMPFILE | wc -l`
if [ "$BITBAKE_OUTPUT" -eq "0" ]; then
echo "Error: this script needs to be run from your build directory, or you need"
echo "to explicitly set OE_TMPDIR and DEPLOY_DIR_IMAGE in your environment"
else
echo "There was an error running bitbake to determine TMPDIR"
echo "Here is the output from 'bitbake -e':"
cat $BITBAKE_ENV_TMPFILE
fi
rm $BITBAKE_ENV_TMPFILE
exit 1
fi
rm $BITBAKE_ENV_TMPFILE
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_path_vars
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
# Some recipes store the BIOS under $OE_TMPDIR/sysroots/$MACHINE,
# now defined as OECORE_MACHINE_SYSROOT. The latter is used when searching
# BIOS, VGA BIOS and keymaps.
if [ -z "$OECORE_MACHINE_SYSROOT" ]; then
OECORE_MACHINE_SYSROOT=$OE_TMPDIR/sysroots/$MACHINE
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.
filename=`ls -t1 $where/*-image*$machine.$extension 2>/dev/null | head -n1`
if [ "x$filename" != "x" ]; then
ROOTFS=$filename
return
fi
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 "$IS_VM" = "false" ]; then \
setup_path_vars 1
eval kernel_file=\$${machine2}_DEFAULT_KERNEL
KERNEL=$DEPLOY_DIR_IMAGE/$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_path_vars 1
echo "Assuming $ROOTFS really means $DEPLOY_DIR_IMAGE/$ROOTFS-$MACHINE.$FSTYPE"
if [ "$IS_VM" = "true" ]; then
VM=$DEPLOY_DIR_IMAGE/$ROOTFS-$MACHINE.$FSTYPE
else
ROOTFS=$DEPLOY_DIR_IMAGE/$ROOTFS-$MACHINE.$FSTYPE
fi
fi
if [ -z "$ROOTFS" ]; then
setup_path_vars 1
T=$DEPLOY_DIR_IMAGE
eval rootfs_list=\$${machine2}_DEFAULT_ROOTFS
findimage $T $MACHINE $FSTYPE
if [ -z "$ROOTFS" ]; then
error "Unable to determine default rootfs for MACHINE [$MACHINE]"
elif [ "$IS_VM" = "true" ]; then
VM=$ROOTFS
fi
fi
# ROOTFS is now set for all cases, now expand it to be an absolute path, it should exist at this point
ROOTFS=`readlink -f $ROOTFS`
echo ""
echo "Continuing with the following parameters:"
if [ "$IS_VM" = "false" ]; then
echo "KERNEL: [$KERNEL]"
echo "ROOTFS: [$ROOTFS]"
else
echo "VM: [$VM]"
fi
echo "FSTYPE: [$FSTYPE]"
setup_sysroot
# OECORE_NATIVE_SYSROOT and OECORE_MACHINE_SYSROOT are now set for all cases
INTERNAL_SCRIPT="$0-internal"
if [ ! -f "$INTERNAL_SCRIPT" -o ! -r "$INTERNAL_SCRIPT" ]; then
INTERNAL_SCRIPT=`which runqemu-internal`
fi
# Specify directory for BIOS, VGA BIOS and keymaps
if [ ! -z "$CUSTOMBIOSDIR" ]; then
if [ -d "$OECORE_NATIVE_SYSROOT/$CUSTOMBIOSDIR" ]; then
echo "Assuming biosdir is $OECORE_NATIVE_SYSROOT/$CUSTOMBIOSDIR"
SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -L $OECORE_NATIVE_SYSROOT/$CUSTOMBIOSDIR"
elif [ -d "$OECORE_MACHINE_SYSROOT/$CUSTOMBIOSDIR" ]; then
echo "Assuming biosdir is $OECORE_MACHINE_SYSROOT/$CUSTOMBIOSDIR"
SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -L $OECORE_MACHINE_SYSROOT/$CUSTOMBIOSDIR"
else
if [ ! -d "$CUSTOMBIOSDIR" ]; then
echo "Custom BIOS directory not found. Tried: $CUSTOMBIOSDIR"
echo "and $OECORE_NATIVE_SYSROOT/$CUSTOMBIOSDIR"
echo "and $OECORE_MACHINE_SYSROOT/$CUSTOMBIOSDIR"
exit 1;
fi
echo "Assuming biosdir is $CUSTOMBIOSDIR"
SCRIPT_QEMU_OPT="$SCRIPT_QEMU_OPT -L $CUSTOMBIOSDIR"
fi
fi
. $INTERNAL_SCRIPT
exit $?
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