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|
#!/bin/bash
efi=${EFI-/usr/share/AAVMF/AAVMF_CODE.fd}
efivar=${EFIVAR-none}
disk=${DISK-none}
bus=${BUS-pci}
netif=${NETIF}
gic=${GIC-host}
bit=${BIT-64}
cpus=${CPUS-4}
ram=${RAM-1G}
cdrom=${CDROM-nocdimage}
qemu=${QEMU-/usr/bin/qemu-system-aarch64}
accel=${ACCEL-kvm}
cputype=${CPUTYPE-host}
dumpdtb=${DUMPDTB}
withdtb=${WITHDTB}
nifidx=0
tapfd=128
tapredir=""
vhredir=""
netdev=""
build_netdev()
{
nif=$1
if [ -e /dev/tap$(< /sys/class/net/$nif/ifindex) ]; then
addr=$(< /sys/class/net/$nif/address)
tap=/dev/tap$(< /sys/class/net/$nif/ifindex)
mq=$((`ls -1 /sys/class/net/$nif/queues/ | wc -l ` / 2))
tapfds="$(($tapfd))"
tapredir+="$(($tapfd))<>$tap "
vhfds="$(($tapfd+$mq))"
vhredir+="$(($tapfd+$mq))<>/dev/vhost-net "
for i in `seq 1 $(($mq-1))`
do
tapfds+=":$((i+$tapfd))"
tapredir+="$((i+$tapfd))<>$tap "
vhfds+=":$((i+$tapfd+$mq))"
vhredir+="$((i+$tapfd+$mq))<>/dev/vhost-net "
done
netdev+="-netdev tap,fds=$tapfds,id=hostnet$nifidx,vhost=on,vhostfds=$vhfds \
-device virtio-net-$bus$virtio,mac=$addr,netdev=hostnet$nifidx,mq=on,vectors=$((2*$mq+2)) "
else
mq=$((`ls -1 /sys/class/net/$nif/queues/ | wc -l ` / 2))
mq=4
vectors="mq=on,vectors=$((2*$mq+2))"
suffix=`echo $disk | md5sum | sed -e 's/^\(..\)\(..\)\(..\)\(.*\)/\1:\2:\3/'`
netdev="-netdev tap,vhost=on,queues=$mq,id=hostnet$nifidx,ifname=$nif,script=no,downscript=no \
-device virtio-net-$bus$virtio,netdev=hostnet$nifidx,mac=5a:fe:00:$suffix,$vectors"
fi
tapfd=$(($tapfd + $mq + 1))
nifidx=$(($nifidx + 1))
}
if [ "$bit" = 64 ]; then
sf=on
else
sf=off
fi
qvers=$($qemu --version| grep version | cut -f4 -d' ' | cut -f1,2 -d.)
qversmaj=$(echo $qvers | cut -f1 -d.)
qversmin=$(echo $qvers | cut -f2 -d.)
# Disable virtio legacy if < 2.7
if [ $qversmaj -eq 2 -a $qversmin -ge 7 ]; then
if [ $bus = pci ]; then
virtio=",disable-legacy=on"
fi
fi
if [ $efivar != none ]; then
efivarpflash="-drive if=pflash,format=raw,file=$efivar"
fi
if [ "$cdrom" != nocdimage ]; then
cddev="-drive file=$cdrom,id=cdrom,if=none,media=cdrom \
-device virtio-scsi-$bus$virtio \
-device scsi-cd,drive=cdrom"
fi
if [ "$disk" != none ]; then
dskdev="-drive if=none,format=raw,cache=none,aio=native,file=$disk,id=disk0 \
-device virtio-blk-$bus$virtio,drive=disk0"
fi
if [ "$netif" == none ]; then
netdev="-net none"
elif [ -z "$netif" -o $bus != pci ]; then
netdev="-netdev user,id=hostnet0 -device virtio-net-$bus$virtio,netdev=hostnet0"
else
IFS=':' read -ra nifs <<< "$netif"
for i in "${nifs[@]}"; do
build_netdev $i
done
fi
args=" -m $ram -smp $cpus -cpu $cputype,aarch64=$sf -machine virt,accel=$accel,gic-version=$gic \
-nographic \
-drive if=pflash,format=raw,readonly=on,file=$efi $efivarpflash \
$netdev \
$dskdev \
$cddev \
$* \
$tapredir $vhredir \
"
if [ ! -z "$dumpdtb" ]; then
eval "$qemu -machine dumpdtb=$dumpdtb $args"
exit $?
fi
dtb=`mktemp -p tmp --suffix=.dtb`
dts=`mktemp -p tmp --suffix=.dts`
dtc -q -I fs /sys/firmware/devicetree/base/ | grep fsl,erratum-a008585 && (
echo Enabling erratum for fsl,erratum-a008585
eval "$qemu -machine dumpdtb=$dtb $args"
dtc -I dtb $dtb > $dts
cat <<EOF >>$dts
&{/timer} {
fsl,erratum-a008585;
};
EOF
dtc -I dts -O dtb -o $dtb $dts
) && forcedtb="-dtb $dtb"
if [ ! -z "$withdtb" ]; then
forcedtb="-dtb $withdtb"
fi
rm $dts
eval "$qemu $forcedtb $args"
rm $dtb
|
