run qemu-aarch64 on macOS

a-qemu-install-debian-arm64.sh

#!/bin/bash

#qemu-img create -f qcow2 disk.qcow2 20G
#qemu-img create -f qcow2 varstore.img 128M
debian_iso=debian-9.6.0-arm64-xfce-CD-1.iso
qemu-system-aarch64 -smp cpus=6 -M virt -cpu max -m 2G -nographic \
    -drive file=QEMU_EFI.img,if=pflash,format=raw \
    -drive file=varstore.img,if=pflash \
    -drive file=disk.qcow2,if=virtio \
    -drive file=$debian_iso,if=virtio,format=raw

create-network.sh

#!/bin/bash

function create() {
  ifconfig bridge1 create
  ifconfig bridge1 192.168.100.1/24
  sysctl -w net.inet.ip.forwarding=1
  pfctl -F all
  pfctl -f /opt/etc/pfctl-nat-config -e
}

FUNC=$(declare -f create)

sudo bash -c "$FUNC; create"

opt__bin__qemu-ifdown.sh

#!/bin/bash

#: /opt/bin/qemu-ifdown.sh

ifconfig bridge1 deletem $1

opt__bin__qemu-ifup.sh

#!/bin/bash

#: /opt/bin/qemu-ifup.sh

ifconfig bridge1 addm $1

run.sh

#!/bin/bash

#run create-network.sh manually

DISPLAY="-daemonize -serial telnet:localhost:7000,server,nowait,nodelay -monitor telnet:localhost:7100,server,nowait,nodelay -vnc :0"

sudo qemu-system-aarch64 -smp cpus=6 -M virt -cpu max -m 2G $DISPLAY\
    -pidfile $pidfile \
    -drive file=QEMU_EFI.img,if=pflash,format=raw \
    -drive file=varstore.img,if=pflash \
    -drive file=disk.qcow2,if=virtio \
    -netdev tap,id=my_vnet_2,br=/dev/bridge1,script=/opt/bin/qemu-ifup.sh,downscript=/opt/bin/qemu-ifdown.sh \
    -device e1000,netdev=my_vnet_2,mac=52:54:00:12:34:56