initial commit for Enea Linux 4.0

Migrated from the internal git server on the daisy-enea branch

Signed-off-by: Adrian Dudau <adrian.dudau@enea.com>

1 files changed, 659 insertions, 0 deletions

diff --git a/scripts/runqemu-internal b/scripts/runqemu-internal
new file mode 100755
index 0000000000..d317dfd242
--- /dev/null
+++ b/scripts/runqemu-internal
@@ -0,0 +1,659 @@
+#!/bin/bash -x
+
+# Handle running OE images under 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.
+
+# Call setting:
+#   QEMU_MEMORY (optional) - set the amount of memory in the emualted system.
+#   SERIAL_LOGFILE (optional) - log the serial port output to a file
+#
+# Image options:
+#   MACHINE - the machine to run
+#   FSTYPE - the image type to run
+#   KERNEL - the kernel image file to use
+#   ROOTFS - the disk image file to use
+#
+
+
+mem_size=-1
+
+#Get rid of <> and get the contents of extra qemu running params
+SCRIPT_QEMU_EXTRA_OPT=`echo $SCRIPT_QEMU_EXTRA_OPT | sed -e 's/<//' -e 's/>//'`
+#if user set qemu memory, eg: -m 256 in qemu extra params, we need to do some 
+# validation check
+mem_set=`expr "$SCRIPT_QEMU_EXTRA_OPT" : '.*\(-m[[:space:]] *[0-9]*\)'`
+if [ ! -z "$mem_set" ] ; then
+#Get memory setting size from user input
+  mem_size=`echo $mem_set | sed 's/-m[[:space:]] *//'`
+else
+    case "$MACHINE" in
+        "qemux86")
+            mem_size=256
+            ;;
+        "qemux86-64")
+            mem_size=256
+            ;;
+        "qemuarm")
+            mem_size=128
+            ;;
+        "qemumicroblaze")
+            mem_size=64
+            ;;
+        "qemumips"|"qemumips64")
+            mem_size=256
+            ;;
+        "qemuppc")
+            mem_size=256
+            ;;
+        "qemush4")
+            mem_size=1024
+            ;;
+        "qemuzynq")
+            mem_size=1024
+            ;;
+        *)
+            mem_size=64
+            ;;
+    esac
+
+fi
+
+# QEMU_MEMORY has 'M' appended to mem_size
+QEMU_MEMORY="$mem_size"M
+
+# Bug 433: qemuarm cannot use > 256 MB RAM
+if [ "$MACHINE" = "qemuarm" ]; then
+    if [ -z "$mem_size" -o $mem_size -gt 256 ]; then
+        echo "WARNING: qemuarm does not support > 256M of RAM."
+        echo "Changing QEMU_MEMORY to default of 256M."
+        QEMU_MEMORY="256M"
+        mem_size="256"
+        SCRIPT_QEMU_EXTRA_OPT=`echo $SCRIPT_QEMU_EXTRA_OPT | sed -e "s/$mem_set/-m 256/" `
+    fi
+fi
+
+# We need to specify -m <mem_size> to overcome a bug in qemu 0.14.0
+# https://bugs.launchpad.net/ubuntu/+source/qemu-kvm/+bug/584480
+
+if [ -z "$mem_set" ] ; then
+  SCRIPT_QEMU_EXTRA_OPT="$SCRIPT_QEMU_EXTRA_OPT -m $mem_size"
+fi
+# This file is created when runqemu-gen-tapdevs creates a bank of tap
+# devices, indicating that the user should not bring up new ones using
+# sudo.
+NOSUDO_FLAG="/etc/runqemu-nosudo"
+
+QEMUIFUP=`which runqemu-ifup 2> /dev/null`
+QEMUIFDOWN=`which runqemu-ifdown 2> /dev/null`
+if [ -z "$QEMUIFUP" -o ! -x "$QEMUIFUP" ]; then
+       echo "runqemu-ifup cannot be found or executed"
+       exit 1
+fi
+if [ -z "$QEMUIFDOWN" -o ! -x "$QEMUIFDOWN" ]; then
+       echo "runqemu-ifdown cannot be found or executed"
+       exit 1
+fi
+
+NFSRUNNING="false"
+
+#capture original stty values
+ORIG_STTY=$(stty -g)
+
+if [ "$SLIRP_ENABLED" = "yes" ]; then
+    KERNEL_NETWORK_CMD="ip=dhcp"
+    QEMU_TAP_CMD=""
+    QEMU_UI_OPTIONS="-show-cursor -usb -usbdevice wacom-tablet"
+    if [ "$KVM_ACTIVE" = "yes" ]; then
+        QEMU_NETWORK_CMD=""
+        DROOT="/dev/vda"
+        ROOTFS_OPTIONS="-drive file=$ROOTFS,if=virtio"
+    else
+        QEMU_NETWORK_CMD=""
+        DROOT="/dev/hda"
+        ROOTFS_OPTIONS="-hda $ROOTFS"
+    fi
+
+else
+        acquire_lock() {
+            lockfile=$1
+            if [ -z "$lockfile" ]; then
+                echo "Error: missing lockfile arg passed to acquire_lock()"
+                return 1
+            fi
+
+            touch $lockfile.lock
+            exec 8>$lockfile.lock
+            flock -n -x 8
+            if [ $? -ne 0 ]; then
+                exec 8>&-
+                return 1
+            fi
+
+            return 0
+        }
+
+        release_lock() {
+            lockfile=$1
+            if [ -z "$lockfile" ]; then
+                echo "Error: missing lockfile arg passed to release_lock()"
+                return 1
+            fi
+
+            rm -f $lockfile.lock
+            exec  8>&-
+        }
+
+        LOCKDIR="/tmp/qemu-tap-locks"
+        if [ ! -d "$LOCKDIR" ]; then
+            mkdir $LOCKDIR
+            chmod 777 $LOCKDIR
+        fi
+
+        IFCONFIG=`which ip 2> /dev/null`
+        if [ -z "$IFCONFIG" ]; then
+            IFCONFIG=/sbin/ip
+        fi
+        if [ ! -x "$IFCONFIG" ]; then
+               echo "$IFCONFIG cannot be executed"
+               exit 1
+        fi
+
+        POSSIBLE=`$IFCONFIG link | grep 'tap' | awk '{print $2}' | sed s/://`
+        TAP=""
+        LOCKFILE=""
+        USE_PRECONF_TAP="no"
+        for tap in $POSSIBLE; do
+            LOCKFILE="$LOCKDIR/$tap"
+            if [ -e "$LOCKFILE.skip" ]; then
+                echo "Found $LOCKFILE.skip, skipping $tap"
+                continue
+            fi
+            echo "Acquiring lockfile for $tap..."
+            acquire_lock $LOCKFILE
+            if [ $? -eq 0 ]; then
+                TAP=$tap
+                USE_PRECONF_TAP="yes"
+                break
+            fi
+        done
+
+        if [ "$TAP" = "" ]; then
+            if [ -e "$NOSUDO_FLAG" ]; then
+                echo "Error: There are no available tap devices to use for networking,"
+                echo "and I see $NOSUDO_FLAG exists, so I am not going to try creating"
+                echo "a new one with sudo."
+                exit 1
+            fi
+
+            GROUPID=`id -g`
+            USERID=`id -u`
+            echo "Setting up tap interface under sudo"
+            # Redirect stderr since we could see a LD_PRELOAD warning here if pseudo is loaded
+            # but inactive. This looks scary but is harmless
+            tap=`sudo $QEMUIFUP $USERID $GROUPID $OECORE_NATIVE_SYSROOT 2> /dev/null`
+            if [ $? -ne 0 ]; then
+                # Re-run standalone to see verbose errors
+                sudo $QEMUIFUP $USERID $GROUPID $OECORE_NATIVE_SYSROOT
+                return 1
+            fi
+            LOCKFILE="$LOCKDIR/$tap"
+            echo "Acquiring lockfile for $tap..."
+            acquire_lock $LOCKFILE
+            if [ $? -eq 0 ]; then
+                TAP=$tap
+            fi 
+        else
+            echo "Using preconfigured tap device '$TAP'"
+            echo "If this is not intended, touch $LOCKFILE.skip to make runqemu skip $TAP."
+        fi
+
+        cleanup() {
+            if [ ! -e "$NOSUDO_FLAG" -a "$USE_PRECONF_TAP" = "no" ]; then
+                # Redirect stderr since we could see a LD_PRELOAD warning here if pseudo is loaded
+                # but inactive. This looks scary but is harmless
+                sudo $QEMUIFDOWN $TAP $OECORE_NATIVE_SYSROOT 2> /dev/null
+            fi
+            echo "Releasing lockfile of preconfigured tap device '$TAP'"
+            release_lock $LOCKFILE
+
+            if [ "$NFSRUNNING" = "true" ]; then
+                echo "Shutting down the userspace NFS server..."
+                echo "runqemu-export-rootfs stop $ROOTFS"
+                runqemu-export-rootfs stop $ROOTFS
+            fi
+            # If QEMU crashes or somehow tty properties are not restored
+            # after qemu exits, we need to run stty sane
+            #stty sane
+
+            #instead of using stty sane we set the original stty values
+            stty ${ORIG_STTY}
+
+        }
+
+
+        n0=$(echo $TAP | sed 's/tap//')
+        n1=$(($n0 * 2 + 1))
+        n2=$(($n1 + 1))
+
+        KERNEL_NETWORK_CMD="ip=192.168.7.$n2::192.168.7.$n1:255.255.255.0"
+        QEMU_TAP_CMD="-net tap,vlan=0,ifname=$TAP,script=no,downscript=no"
+        if [ "$KVM_ACTIVE" = "yes" ]; then
+            QEMU_NETWORK_CMD="-net nic,model=virtio $QEMU_TAP_CMD,vhost=on"
+            DROOT="/dev/vda"
+            ROOTFS_OPTIONS="-drive file=$ROOTFS,if=virtio"
+        else
+            QEMU_NETWORK_CMD="-net nic,vlan=0 $QEMU_TAP_CMD"
+            DROOT="/dev/hda"
+            ROOTFS_OPTIONS="-hda $ROOTFS"
+        fi
+        KERNCMDLINE="mem=$QEMU_MEMORY"
+        QEMU_UI_OPTIONS="-show-cursor -usb -usbdevice wacom-tablet"
+
+        NFS_INSTANCE=`echo $TAP | sed 's/tap//'`
+        export NFS_INSTANCE
+
+        SERIALOPTS=""
+        if [ "x$SERIAL_LOGFILE" != "x" ]; then
+            SERIALOPTS="-serial file:$SERIAL_LOGFILE"
+        fi
+fi
+
+case "$MACHINE" in
+    "qemuarm") ;;
+    "qemumicroblaze") ;;
+    "qemumips") ;;
+    "qemumipsel") ;;
+    "qemumips64") ;;
+    "qemush4") ;;
+    "qemuppc") ;;
+    "qemuarmv6") ;;
+    "qemuarmv7") ;;
+    "qemux86") ;;
+    "qemux86-64") ;;
+    "qemuzynq") ;;
+    "akita") ;;
+    "spitz") ;;
+    *)
+        echo "Error: Unsupported machine type $MACHINE"
+        return 1
+    ;;
+esac
+
+if [ ! -f "$KERNEL" -a "x$FSTYPE" != "xvmdk" ]; then
+    echo "Error: Kernel image file $KERNEL doesn't exist"
+    cleanup
+    return 1
+fi
+
+if [ "$FSTYPE" != "nfs" -a "$FSTYPE" != "vmdk" -a ! -f "$ROOTFS" ]; then
+    echo "Error: Image file $ROOTFS doesn't exist"
+    cleanup
+    return 1
+fi
+
+if [ "$NFS_SERVER" = "" ]; then
+    NFS_SERVER="192.168.7.1"
+    if [ "$SLIRP_ENABLED" = "yes" ]; then
+        NFS_SERVER="10.0.2.2"
+    fi
+fi
+
+if [ "$FSTYPE" = "nfs" ]; then
+    NFS_DIR=`echo $ROOTFS | sed 's/^[^:]*:\(.*\)/\1/'`
+    if [ "$NFS_INSTANCE" = "" ] ; then
+        NFS_INSTANCE=0
+    fi
+    MOUNTD_RPCPORT=$[ 21111 + $NFS_INSTANCE ]
+    NFSD_RPCPORT=$[ 11111 + $NFS_INSTANCE ]
+    NFSD_PORT=$[ 3049 + 2 * $NFS_INSTANCE ]
+    MOUNTD_PORT=$[ 3048 + 2 * $NFS_INSTANCE ]
+    UNFS_OPTS="nfsvers=3,port=$NFSD_PORT,mountprog=$MOUNTD_RPCPORT,nfsprog=$NFSD_RPCPORT,udp,mountport=$MOUNTD_PORT"
+
+    PSEUDO_LOCALSTATEDIR=~/.runqemu-sdk/pseudo
+    export PSEUDO_LOCALSTATEDIR
+
+    # Start the userspace NFS server
+    echo "runqemu-export-rootfs restart $ROOTFS"
+    runqemu-export-rootfs restart $ROOTFS
+    if [ $? != 0 ]; then
+        return 1
+    fi
+    NFSRUNNING="true"
+fi
+
+if [ "$MACHINE" = "qemuarm" -o "$MACHINE" = "qemuarmv6" -o "$MACHINE" = "qemuarmv7" ]; then
+    QEMU=qemu-system-arm
+    MACHINE_SUBTYPE=versatilepb
+    export QEMU_AUDIO_DRV="none"
+    QEMU_UI_OPTIONS="$QEMU_UI_OPTIONS"
+    # QEMU_UI_OPTIONS="$QEMU_UI_OPTIONS -force-pointer"
+    if [ "${FSTYPE:0:3}" = "ext" -o "$FSTYPE" = "btrfs" ]; then
+        KERNCMDLINE="root=/dev/sda rw console=ttyAMA0,115200 console=tty $KERNEL_NETWORK_CMD mem=$QEMU_MEMORY highres=off"
+        QEMUOPTIONS="$QEMU_NETWORK_CMD -M ${MACHINE_SUBTYPE} -hda $ROOTFS -no-reboot $QEMU_UI_OPTIONS"
+    fi
+    if [ "$FSTYPE" = "nfs" ]; then
+        if [ "$NFS_SERVER" = "192.168.7.1" -a ! -d "$NFS_DIR" ]; then
+            echo "Error: NFS mount point $ROOTFS doesn't exist"
+            cleanup
+            return 1
+        fi
+        KERNCMDLINE="root=/dev/nfs nfsroot=$NFS_SERVER:$NFS_DIR,$UNFS_OPTS rw $KERNEL_NETWORK_CMD mem=$QEMU_MEMORY"
+        QEMUOPTIONS="$QEMU_NETWORK_CMD -M ${MACHINE_SUBTYPE} --no-reboot $QEMU_UI_OPTIONS"
+    fi
+    if [ "$MACHINE" = "qemuarmv6" ]; then
+        QEMUOPTIONS="$QEMUOPTIONS -cpu arm1136"
+    fi
+    if [ "$MACHINE" = "qemuarmv7" ]; then
+        QEMUOPTIONS="$QEMUOPTIONS -cpu cortex-a8"
+    fi
+fi
+
+if [ "$MACHINE" = "qemux86" ]; then
+    QEMU=qemu-system-i386
+    if [ "$KVM_ACTIVE" = "yes" ]; then
+        CPU_SUBTYPE=kvm32
+    else
+        CPU_SUBTYPE=qemu32
+    fi
+    if [ ! -z "$vga_option" ]; then
+        QEMU_UI_OPTIONS="$QEMU_UI_OPTIONS"
+    else
+        QEMU_UI_OPTIONS="$QEMU_UI_OPTIONS -vga vmware"
+    fi
+    if [ "${FSTYPE:0:3}" = "ext" -o "$FSTYPE" = "btrfs" ]; then
+        KERNCMDLINE="vga=0 uvesafb.mode_option=640x480-32 root=$DROOT rw mem=$QEMU_MEMORY $KERNEL_NETWORK_CMD"
+        QEMUOPTIONS="$QEMU_NETWORK_CMD -cpu $CPU_SUBTYPE $ROOTFS_OPTIONS $QEMU_UI_OPTIONS"
+    fi
+    if [ "$FSTYPE" = "nfs" ]; then
+        if [ "$NFS_SERVER" = "192.168.7.1" -a ! -d "$NFS_DIR" ]; then
+            echo "Error: NFS mount point $ROOTFS doesn't exist."
+            cleanup
+            return 1
+        fi
+        KERNCMDLINE="root=/dev/nfs nfsroot=$NFS_SERVER:$NFS_DIR,$UNFS_OPTS rw $KERNEL_NETWORK_CMD mem=$QEMU_MEMORY"
+        QEMUOPTIONS="$QEMU_NETWORK_CMD $QEMU_UI_OPTIONS"
+    fi
+    if [ "$FSTYPE" = "vmdk" ]; then
+        QEMUOPTIONS="$QEMU_NETWORK_CMD $QEMU_UI_OPTIONS"
+    fi
+    # Currently oprofile's event based interrupt mode doesn't work(Bug #828) in
+    # qemux86 and qemux86-64. We can use timer interrupt mode for now.
+    KERNCMDLINE="$KERNCMDLINE oprofile.timer=1"
+fi
+
+if [ "$MACHINE" = "qemux86-64" ]; then
+    QEMU=qemu-system-x86_64
+    if [ "$KVM_ACTIVE" = "yes" ]; then
+        CPU_SUBTYPE=kvm64
+    else
+        CPU_SUBTYPE=core2duo
+    fi
+    if [ ! -z "$vga_option" ]; then
+        QEMU_UI_OPTIONS="$QEMU_UI_OPTIONS"
+    else
+        QEMU_UI_OPTIONS="$QEMU_UI_OPTIONS -vga vmware"
+    fi
+    if [ "${FSTYPE:0:3}" = "ext" -o "$FSTYPE" = "btrfs" ]; then
+        KERNCMDLINE="vga=0 uvesafb.mode_option=640x480-32 root=$DROOT rw mem=$QEMU_MEMORY $KERNEL_NETWORK_CMD"
+        QEMUOPTIONS="$QEMU_NETWORK_CMD -cpu $CPU_SUBTYPE $ROOTFS_OPTIONS $QEMU_UI_OPTIONS"
+    fi
+    if [ "$FSTYPE" = "nfs" ]; then
+        if [ "x$ROOTFS" = "x" ]; then
+            ROOTFS=/srv/nfs/qemux86-64
+        fi
+        if [ ! -d "$ROOTFS" ]; then
+            echo "Error: NFS mount point $ROOTFS doesn't exist."
+            cleanup
+            return 1
+        fi
+        KERNCMDLINE="root=/dev/nfs nfsroot=$NFS_SERVER:$NFS_DIR,$UNFS_OPTS rw $KERNEL_NETWORK_CMD mem=$QEMU_MEMORY"
+        QEMUOPTIONS="$QEMU_NETWORK_CMD -cpu $CPU_SUBTYPE $QEMU_UI_OPTIONS"
+    fi
+    if [ "$FSTYPE" = "vmdk" ]; then
+        QEMUOPTIONS="$QEMU_NETWORK_CMD -cpu $CPU_SUBTYPE $QEMU_UI_OPTIONS"
+    fi
+    # Currently oprofile's event based interrupt mode doesn't work(Bug #828) in
+    # qemux86 and qemux86-64. We can use timer interrupt mode for now.
+    KERNCMDLINE="$KERNCMDLINE oprofile.timer=1"
+fi
+
+if [ "$MACHINE" = "spitz" ]; then
+    QEMU=qemu-system-arm
+    if [ "${FSTYPE:0:3}" = "ext" -o "$FSTYPE" = "btrfs" ]; then
+        echo $ROOTFS
+        ROOTFS=`readlink -f $ROOTFS`
+        echo $ROOTFS
+        if [ ! -e "$ROOTFS.qemudisk" ]; then
+            echo "Adding a partition table to the ext3 image for use by QEMU, please wait..."
+            runqemu-addptable2image $ROOTFS $ROOTFS.qemudisk
+        fi
+        QEMUOPTIONS="$QEMU_NETWORK_CMD -M spitz -hda $ROOTFS.qemudisk -portrait"
+    fi
+fi
+
+if [ "$MACHINE" = "qemumips" -o "$MACHINE" = "qemumipsel" -o "$MACHINE" = "qemumips64" ]; then
+    case "$MACHINE" in
+       qemumips)   QEMU=qemu-system-mips ;;
+       qemumipsel) QEMU=qemu-system-mipsel ;;
+       qemumips64) QEMU=qemu-system-mips64 ;;
+    esac
+    MACHINE_SUBTYPE=malta
+    QEMU_UI_OPTIONS="-vga cirrus $QEMU_UI_OPTIONS"
+    if [ "${FSTYPE:0:3}" = "ext" -o "$FSTYPE" = "btrfs" ]; then
+        #KERNCMDLINE="root=/dev/hda console=ttyS0 console=tty0 $KERNEL_NETWORK_CMD mem=$QEMU_MEMORY"
+        KERNCMDLINE="root=/dev/hda rw console=ttyS0 console=tty $KERNEL_NETWORK_CMD mem=$QEMU_MEMORY"
+        QEMUOPTIONS="$QEMU_NETWORK_CMD -M $MACHINE_SUBTYPE -hda $ROOTFS -no-reboot $QEMU_UI_OPTIONS"
+    fi
+    if [ "$FSTYPE" = "nfs" ]; then
+        if [ "$NFS_SERVER" = "192.168.7.1" -a ! -d "$NFS_DIR" ]; then
+            echo "Error: NFS mount point $ROOTFS doesn't exist"
+            cleanup
+            return 1
+        fi
+        KERNCMDLINE="root=/dev/nfs console=ttyS0 console=tty nfsroot=$NFS_SERVER:$NFS_DIR,$UNFS_OPTS rw $KERNEL_NETWORK_CMD mem=$QEMU_MEMORY"
+        QEMUOPTIONS="$QEMU_NETWORK_CMD -M $MACHINE_SUBTYPE -no-reboot $QEMU_UI_OPTIONS"
+    fi
+fi
+
+if [ "$MACHINE" = "qemuppc" ]; then
+    QEMU=qemu-system-ppc
+    MACHINE_SUBTYPE=mac99
+    CPU_SUBTYPE=G4
+    QEMU_UI_OPTIONS="$QEMU_UI_OPTIONS"
+    if [ "$SLIRP_ENABLED" = "yes" ]; then
+        QEMU_NETWORK_CMD=""
+    else
+        QEMU_NETWORK_CMD="-net nic,model=pcnet $QEMU_TAP_CMD"
+    fi
+    if [ "${FSTYPE:0:3}" = "ext" -o "$FSTYPE" = "btrfs" ]; then
+        KERNCMDLINE="root=/dev/hda rw console=ttyS0 console=tty $KERNEL_NETWORK_CMD mem=$QEMU_MEMORY"
+        QEMUOPTIONS="$QEMU_NETWORK_CMD -cpu $CPU_SUBTYPE -M $MACHINE_SUBTYPE -hda $ROOTFS -no-reboot $QEMU_UI_OPTIONS"
+    fi
+    if [ "$FSTYPE" = "nfs" ]; then
+        if [ "$NFS_SERVER" = "192.168.7.1" -a ! -d "$NFS_DIR" ]; then
+            echo "Error: NFS mount point $ROOTFS doesn't exist"
+            cleanup
+            return 1
+        fi
+        KERNCMDLINE="root=/dev/nfs console=ttyS0 console=tty nfsroot=$NFS_SERVER:$NFS_DIR,$UNFS_OPTS rw $KERNEL_NETWORK_CMD mem=$QEMU_MEMORY"
+        QEMUOPTIONS="$QEMU_NETWORK_CMD -cpu $CPU_SUBTYPE -M $MACHINE_SUBTYPE -no-reboot $QEMU_UI_OPTIONS"
+    fi
+fi
+
+if [ "$MACHINE" = "qemush4" ]; then
+    QEMU=qemu-system-sh4
+    MACHINE_SUBTYPE=r2d
+    QEMU_UI_OPTIONS="$QEMU_UI_OPTIONS"
+    if [ "${FSTYPE:0:3}" = "ext" -o "$FSTYPE" = "btrfs" ]; then
+        #KERNCMDLINE="root=/dev/hda console=ttyS0 console=tty0 $KERNEL_NETWORK_CMD mem=$QEMU_MEMORY"
+        KERNCMDLINE="root=/dev/hda rw console=ttySC1 noiotrap earlyprintk=sh-sci.1 console=tty $KERNEL_NETWORK_CMD mem=$QEMU_MEMORY"
+        QEMUOPTIONS="$QEMU_NETWORK_CMD -M $MACHINE_SUBTYPE -hda $ROOTFS -no-reboot $QEMU_UI_OPTIONS -monitor null -serial vc -serial stdio"
+        SERIALSTDIO="1"
+    fi
+    if [ "$FSTYPE" = "nfs" ]; then
+        if [ "$NFS_SERVER" = "192.168.7.1" -a ! -d "$NFS_DIR" ]; then
+            echo "Error: NFS mount point $ROOTFS doesn't exist"
+            cleanup
+            return 1
+        fi
+        KERNCMDLINE="root=/dev/nfs console=ttySC1 noiotrap earlyprintk=sh-sci.1 console=tty nfsroot=$NFS_SERVER:$NFS_DIR,$UNFS_OPTS rw $KERNEL_NETWORK_CMD mem=$QEMU_MEMORY"
+        QEMUOPTIONS="$QEMU_NETWORK_CMD -M $MACHINE_SUBTYPE -no-reboot $QEMU_UI_OPTIONS -monitor null -serial vc -serial stdio"
+        SERIALSTDIO="1"
+    fi
+fi
+
+if [ "$MACHINE" = "akita" ]; then
+    QEMU=qemu-system-arm
+    if [ "$FSTYPE" = "jffs2" ]; then
+        ROOTFS=`readlink -f $ROOTFS`
+        if [ ! -e "$ROOTFS.qemuflash" ]; then
+            echo "Converting raw image into flash image format for use by QEMU, please wait..."
+        raw2flash.akita < $ROOTFS > $ROOTFS.qemuflash
+        fi
+        QEMUOPTIONS="$QEMU_NETWORK_CMD -M akita -mtdblock $ROOTFS.qemuflash -portrait"
+    fi
+fi
+
+if [ "$MACHINE" = "qemumicroblaze" ]; then
+    QEMU=qemu-system-microblazeel
+    QEMU_SYSTEM_OPTIONS="-M petalogix-ml605 -serial mon:stdio -dtb $KERNEL-$MACHINE.dtb"
+    if [ "${FSTYPE:0:3}" = "ext" -o "${FSTYPE:0:4}" = "cpio" ]; then
+        KERNCMDLINE="earlyprintk root=/dev/ram rw"
+        QEMUOPTIONS="$QEMU_SYSTEM_OPTIONS -initrd $ROOTFS"
+    fi
+fi
+
+if [ "$MACHINE" = "qemuzynq" ]; then
+    QEMU=qemu-system-arm
+    QEMU_SYSTEM_OPTIONS="-M xilinx-zynq-a9 -serial null -serial mon:stdio -dtb $KERNEL-$MACHINE.dtb"
+    # zynq serial ports are named 'ttyPS0' and 'ttyPS1', fixup the default values
+    SCRIPT_KERNEL_OPT=$(echo "$SCRIPT_KERNEL_OPT" | sed 's/console=ttyS/console=ttyPS/g')
+    if [ "${FSTYPE:0:3}" = "ext" -o "${FSTYPE:0:4}" = "cpio" ]; then
+        KERNCMDLINE="earlyprintk root=/dev/ram rw"
+        QEMUOPTIONS="$QEMU_SYSTEM_OPTIONS -initrd $ROOTFS"
+    fi
+fi
+
+if [ "x$RAMFS" = "xtrue" ]; then
+    QEMUOPTIONS="-initrd $ROOTFS -nographic"
+    KERNCMDLINE="root=/dev/ram0 debugshell"
+fi
+
+if [ "x$ISOFS" = "xtrue" ]; then
+    QEMUOPTIONS="$QEMU_NETWORK_CMD -cdrom $ROOTFS $QEMU_UI_OPTIONS"
+fi
+
+if [ "x$QEMUOPTIONS" = "x" ]; then
+    echo "Error: Unable to support this combination of options"
+    cleanup
+    return 1
+fi
+
+PATH=$OECORE_NATIVE_SYSROOT/usr/bin:$PATH
+
+QEMUBIN=`which $QEMU 2> /dev/null`
+if [ ! -x "$QEMUBIN" ]; then
+    echo "Error: No QEMU binary '$QEMU' could be found."
+    cleanup
+    return 1
+fi
+
+NEED_GL=`ldd $QEMUBIN/$QEMU 2>&1 | grep libGLU`
+# We can't run without a libGL.so
+if [ "$NEED_GL" != "" ]; then
+    libgl='no'
+
+    [ -e /usr/lib/libGL.so -a -e /usr/lib/libGLU.so ] && libgl='yes'
+    [ -e /usr/lib64/libGL.so -a -e /usr/lib64/libGLU.so ] && libgl='yes'
+    [ -e /usr/lib/*-linux-gnu/libGL.so -a -e /usr/lib/*-linux-gnu/libGLU.so ] && libgl='yes'
+
+    if [ "$libgl" != 'yes' ]; then
+        echo "You need libGL.so and libGLU.so to exist in your library path to run the QEMU emulator.
+        Ubuntu package names are: libgl1-mesa-dev and libglu1-mesa-dev.
+        Fedora package names are: mesa-libGL-devel mesa-libGLU-devel."
+        return 1;
+    fi
+fi
+
+do_quit() {
+    cleanup
+    return 1
+}
+
+trap do_quit INT TERM QUIT
+
+# qemu got segfault if linked with nVidia's libgl
+GL_LD_PRELOAD=$LD_PRELOAD
+
+if ldd $QEMUBIN | grep -i nvidia &> /dev/null
+then
+cat << EOM
+WARNING: nVidia proprietary OpenGL libraries detected.
+nVidia's OpenGL libraries are known to have compatibility issues with qemu,
+resulting in a segfault. Please uninstall these drivers or ensure the mesa libGL
+libraries precede nvidia's via LD_PRELOAD(Already do it on Ubuntu 10).
+EOM
+
+# Automatically use Ubuntu system's mesa libGL, other distro can add its own path
+if grep -i ubuntu /etc/lsb-release &> /dev/null
+then
+    # precede nvidia's driver on Ubuntu 10
+    UBUNTU_MAIN_VERSION=`cat /etc/lsb-release |grep DISTRIB_RELEASE |cut -d=  -f 2| cut -d. -f 1`
+    if [ "$UBUNTU_MAIN_VERSION" = "10" ];
+    then
+        GL_PATH=""
+        if test -e /usr/lib/libGL.so
+        then 
+            GL_PATH="/usr/lib/libGL.so"
+        elif test -e /usr/lib/x86_64-linux-gnu/libGL.so
+        then
+            GL_PATH="/usr/lib/x86_64-linux-gnu/libGL.so"
+        fi
+
+        echo "Skip nVidia's libGL on Ubuntu 10!"
+        GL_LD_PRELOAD="$GL_PATH $LD_PRELOAD"
+    fi
+fi
+fi
+
+if [ "x$SERIALSTDIO" = "x1" ]; then
+        echo "Interrupt character is '^]'"
+        stty intr ^]
+fi
+
+echo "Running $QEMU..."
+# -no-reboot is a mandatory option - see bug #100
+if [ "$FSTYPE" = "vmdk" ]; then
+    echo $QEMUBIN $VM $QEMUOPTIONS $SERIALOPTS -no-reboot $SCRIPT_QEMU_OPT $SCRIPT_QEMU_EXTRA_OPT
+    LD_PRELOAD="$GL_LD_PRELOAD" $QEMUBIN $VM $QEMUOPTIONS $SERIALOPTS -no-reboot $SCRIPT_QEMU_OPT $SCRIPT_QEMU_EXTRA_OPT
+elif [ "$FSTYPE" = "iso" ]; then
+    echo $QEMUBIN $QEMUOPTIONS $SERIALOPTS -no-reboot $SCRIPT_QEMU_OPT $SCRIPT_QEMU_EXTRA_OPT
+    LD_PRELOAD="$GL_LD_PRELOAD" $QEMUBIN $QEMUOPTIONS $SERIALOPTS -no-reboot $SCRIPT_QEMU_OPT $SCRIPT_QEMU_EXTRA_OPT
+else
+    echo $QEMUBIN -kernel $KERNEL $QEMUOPTIONS $SLIRP_CMD $SERIALOPTS -no-reboot $SCRIPT_QEMU_OPT $SCRIPT_QEMU_EXTRA_OPT --append '"'$KERNCMDLINE $SCRIPT_KERNEL_OPT'"'
+    LD_PRELOAD="$GL_LD_PRELOAD" $QEMUBIN -kernel $KERNEL $QEMUOPTIONS $SERIALOPTS -no-reboot $SCRIPT_QEMU_OPT $SCRIPT_QEMU_EXTRA_OPT --append "$KERNCMDLINE $SCRIPT_KERNEL_OPT"
+fi
+ret=$?
+if [ "$SLIRP_ENABLED" != "yes" ]; then
+        cleanup
+fi
+
+#set the original stty values before exit
+stty ${ORIG_STTY}
+trap - INT TERM QUIT
+
+return $ret