project/qemu/run-qemu-helper

#!/bin/bash

set -e
set -u

if [ -v ANDROID_DIR ]; then
    if [ ! -d "${ANDROID_DIR}" ]; then
        echo ANDROID_DIR, "${ANDROID_DIR}", must be a directory
        exit 1
    fi
    if [ ! -v ANDROID_PRODUCT ]; then
        ANDROID_PRODUCT="trusty"
    fi
    ANDROID_BUILD_DIR="${ANDROID_DIR}/out/target/product/${ANDROID_PRODUCT}"
fi

if [ ! -v EXTRA_CMDLINE ]; then
    EXTRA_CMDLINE=""
fi

QEMU_MACHINE="-machine virt,secure=on,virtualization=on"
QEMU_FINAL_ARGS=()
QEMU_ARGS=(
    -nographic
    -cpu cortex-a57
    -smp 4
    -m 1024
    -bios bl1.bin
    -d unimp
    -semihosting-config enable,target=native
    -no-acpi
    )
QEMU_SERIAL_ARGS=(
    -serial mon:stdio
    )
for ARG in "$@"; do
    if [ "${ARG}" = "-S" ]; then
        QEMU_FINAL_ARGS+=("${ARG}")
    else
        QEMU_ARGS+=("${ARG}")
    fi
    if [ "${ARG}" = "-serial" ]; then
        QEMU_SERIAL_ARGS=()
    fi
done
QEMU_ARGS+=(${QEMU_SERIAL_ARGS[@]+${QEMU_SERIAL_ARGS[@]}})

if [ -v KERNEL_DIR ]
then
    DTC="${KERNEL_DIR}/scripts/dtc/dtc"
    QEMU_ARGS+=(
        -kernel ${KERNEL_DIR}/arch/arm64/boot/Image
        -append "earlyprintk console=ttyAMA0,38400 keep_bootcon root=/dev/vda ro init=/init androidboot.hardware=qemu_trusty ${EXTRA_CMDLINE}"
        )
    if [ -v ANDROID_BUILD_DIR ]; then
        QEMU_ARGS+=(
            -drive file=${ANDROID_BUILD_DIR}/userdata.img,index=2,if=none,id=hdc,format=raw
            -device virtio-blk-device,drive=hdc
            -drive file=${ANDROID_BUILD_DIR}/vendor.img,index=1,if=none,id=hdb,format=raw
            -device virtio-blk-device,drive=hdb
            -drive file=${ANDROID_BUILD_DIR}/system.img,index=0,if=none,id=hda,format=raw
            -device virtio-blk-device,drive=hda
            )
    else
        echo Set ANDROID_DIR to run a non-secure android build
    fi
    ${QEMU} ${QEMU_MACHINE},dumpdtb=qemu-gen.dtb "${QEMU_ARGS[@]}"
    ${DTC} -q -O dts qemu-gen.dtb >qemu-gen.dts
    cat qemu-gen.dts firmware.android.dts | ${DTC} -q -O dtb >qemu-comb.dtb
    QEMU_ARGS+=(
        -dtb qemu-comb.dtb
        )
else
    echo Set KERNEL_DIR to run a non-secure kernel
fi
${QEMU} ${QEMU_MACHINE} "${QEMU_ARGS[@]}" ${QEMU_FINAL_ARGS[@]+"${QEMU_FINAL_ARGS[@]}"}