host/libs/vm_manager/cf_qemu.sh

#!/bin/bash

#
# Copyright (C) 2018 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

default_instance_number() {
    if [[ "${USER::5}" == "vsoc-" ]]; then
        echo "${USER: -2}"
    else
        echo "01"
    fi
}
CUTTLEFISH_INSTANCE="${CUTTLEFISH_INSTANCE:-$(default_instance_number)}"
default_instance_name="cvd-${CUTTLEFISH_INSTANCE}"
default_uuid="699acfc4-c8c4-11e7-882b-5065f31dc1${CUTTLEFISH_INSTANCE}"
default_dir="${HOME}/cuttlefish_runtime"
default_mobile_tap_name="cvd-mtap-${CUTTLEFISH_INSTANCE}"
default_wifi_tap_name="cvd-wtap-${CUTTLEFISH_INSTANCE}"

if [[ -z "${ivshmem_vector_count}" ]]; then
    echo "The required ivshmem_vector_count environment variable is not set" >&2
    exit 1
fi

args=(
    -enable-kvm
    -name "guest=${instance_name:-${default_instance_name}},debug-threads=on"
    -machine "pc-i440fx-2.8,accel=kvm,usb=off,dump-guest-core=off"
    -m "${memory_mb:-2048}"
    -realtime mlock=off
    -smp "${cpus:-2},sockets=${cpus:-2},cores=1,threads=1"
    -uuid "${uuid:-${default_uuid}}"
    -display none
    -no-user-config
    -nodefaults
    -chardev "socket,id=charmonitor,path=${monitor_path:-${default_dir}/qemu_monitor.sock},nowait"
    -mon "chardev=charmonitor,id=monitor,mode=control"
    -rtc "base=utc"
    -no-shutdown
    -boot "strict=on"
    -kernel "${kernel_image_path:-${HOME}/kernel}"
    -append "${kernel_args:-"loop.max_part=7 console=ttyS0 androidboot.console=ttyS1 androidboot.hardware=vsoc enforcing=0 audit=1 androidboot.selinux=permissive mac80211_hwsim.radios=0 security=selinux buildvariant=userdebug  androidboot.serialno=CUTTLEFISHCVD01 androidboot.lcd_density=160"}"
    -dtb "${dtb_path:-${HOME}/config/cuttlefish.dtb}"
    -device "piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2"
    -device "virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x4"
    -drive "file=${system_image_path:-${HOME}/system.img},format=raw,if=none,id=drive-virtio-disk0,aio=threads"
    -device "virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1"
    -drive "file=${data_image_path:-${HOME}/userdata.img},format=raw,if=none,id=drive-virtio-disk1,aio=threads"
    -device "virtio-blk-pci,scsi=off,bus=pci.0,addr=0x6,drive=drive-virtio-disk1,id=virtio-disk1"
    -drive "file=${cache_image_path:-${HOME}/cache.img},format=raw,if=none,id=drive-virtio-disk2,aio=threads"
    -device "virtio-blk-pci,scsi=off,bus=pci.0,addr=0x7,drive=drive-virtio-disk2,id=virtio-disk2"
    -drive "file=${vendor_image_path:-${HOME}/vendor.img},format=raw,if=none,id=drive-virtio-disk3,aio=threads"
    -device "virtio-blk-pci,scsi=off,bus=pci.0,addr=0x8,drive=drive-virtio-disk3,id=virtio-disk3"
    -netdev "tap,id=hostnet0,ifname=${wifi_tap_name:-${default_wifi_tap_name}},script=no,downscript=no"
    -device "virtio-net-pci,netdev=hostnet0,id=net0,bus=pci.0,addr=0x2"
    -netdev "tap,id=hostnet1,ifname=${mobile_tap_name:-${default_mobile_tap_name}},script=no,downscript=no"
    -device "virtio-net-pci,netdev=hostnet1,id=net1,bus=pci.0,addr=0x3"
    -chardev "socket,id=charserial0,path=${kernel_log_socket_name:-${default_dir}/kernel-log}"
    -device "isa-serial,chardev=charserial0,id=serial0"
    -chardev "socket,id=charserial1,path=${console_path:-${default_dir}/console},server,nowait"
    -device "isa-serial,chardev=charserial1,id=serial1"
    -chardev "file,id=charchannel0,path=${logcat_path:-${default_dir}/logcat},append=on"
    -device "virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=cf-logcat"
    -device "virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x9"
    -object "rng-random,id=objrng0,filename=/dev/urandom"
    -device "virtio-rng-pci,rng=objrng0,id=rng0,max-bytes=1024,period=2000,bus=pci.0,addr=0xa"
    -chardev "socket,path=${ivshmem_qemu_socket_path:-${default_dir}/ivshmem_socket_qemu},id=ivsocket"
    -device "ivshmem-doorbell,chardev=ivsocket,vectors=${ivshmem_vector_count}"
    -cpu host
    -msg "timestamp=on"
)

if [[ -n "${gdb_flag}" ]]; then
  args+=(-gdb "${gdb_flag}")
fi

if [[ -n "${ramdisk_image_path}" ]]; then
  args+=(-initrd "${ramdisk_image_path}")
fi

if [[ -n "${usb_v1_socket_name}" ]]; then
  args+=(
      -chardev "socket,id=charchannel1,path=${usb_v1_socket_name:-${default_dir}/usb-v1}"
      -device "virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,id=channel1,name=cf-gadget-usb-v1"
  )
fi
printf %s "exec ${qemu_binary=/usr/bin/qemu-system-x86_64}"
for i in "${args[@]}"; do
  case "$i" in
    -*) printf "\\%s  %s " $'\n' "$i" ;;
    *) printf "%s " "$i" ;;
  esac
done
echo

exec "${qemu_binary=/usr/bin/qemu-system-x86_64}" \
  "${args[@]}"