#!/usr/bin/env bash

# Copyright 2020 The Android KVM Authors
#
# 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.

TIMEOUT=180s

# QEMU CPUs to use for VHE and nVHE runs
VHE_CPU="max"
NVHE_CPU="cortex-a53"

TEST_FILE=$1
LINUX_KERNEL=$2
ROOTFS=$3
QEMU=$4
VHE=$5
CPU=""

# Assume that the roms are located with the disk image.
ROM_PATH=$(dirname "${ROOTFS}")

if [ ! -f "${TEST_FILE}" ]; then
    echo "Standalone kvmunittest file not found"
    echo "Run make standalone first to generate the standalone test files."
    exit 1
fi

if [ ! -f "${LINUX_KERNEL}" ]; then
    echo "Linux kernel image file not found."
    exit 1
fi

if [ ! -f "${ROOTFS}" ]; then
    echo "Root filesystem image file not found."
    exit 1
fi

if [ ! -x "${QEMU}" ]; then
    echo "QEMU executable not found."
    exit 1
fi

if [ "${VHE}" = 1 ]; then
    CPU=${VHE_CPU}
else
    CPU=${NVHE_CPU}
fi

timeout -k 1s --foreground "${TIMEOUT}" "${QEMU}" \
   -M virt \
   -machine virtualization=true -machine virt,gic-version=3  \
   -cpu "${CPU}" \
   -nographic \
   -smp 2 \
   -m 512 \
   -kernel "${LINUX_KERNEL}" \
   -L "${ROM_PATH}" \
   -append "rootwait root=/dev/vda" \
   -drive file="${ROOTFS}",readonly,if=virtio,format=raw \
   -drive file="${TEST_FILE}",readonly,if=virtio,format=raw \
   -object rng-random,filename=/dev/urandom,id=rng0      \
   -device virtio-rng-pci,rng=rng0