run-qemu.sh

#!/usr/bin/env bash
# Copyright 2021 Dokyung Song. All rights reserved.
# Use of this source code is governed by Apache 2 LICENSE that can be found in the LICENSE file.


QEMU=./build/qemu/install/bin/qemu-system-x86_64
KERNEL=./build/linux/csi2115_f21/arch/x86_64/boot/bzImage
IMAGE=./stretch.img
OVERLAY=./stretch.qcow2

LOADVM=""
if [ -f $OVERLAY ]; then
	IMAGE=$OVERLAY
	SNAPSHOT=`qemu-img snapshot -l stretch.qcow2 |tail -1 |awk '{print $2}'`
	if [[ $SNAPSHOT =~ vm-* ]]; then
		LOADVM="-loadvm $SNAPSHOT"
	fi
fi

if [ $# -ge 1 ]; then
	QEMU=$1
fi

set -eux

ENABLE_KVM=""
if output=$(kvm-ok); then
	ENABLE_KVM=-enable-kvm
fi

$QEMU -smp 2 -m 4G $ENABLE_KVM $LOADVM \
	-kernel $KERNEL \
	-hda $IMAGE \
	-net nic -net user,hostfwd=tcp::10022-:22 \
	-append "root=/dev/sda console=ttyS0 earlyprintk=serial oops=panic panic_on_warn=1 panic=86400 kvm-intel.nested=1 kvm-intel.unrestricted_guest=1 kvm-intel.vmm_exclusive=1 kvm-intel.fasteoi=1 kvm-intel.ept=1 kvm-intel.flexpriority=1 kvm-intel.vpid=1 kvm-intel.emulate_invalid_guest_state=1 kvm-intel.eptad=1 kvm-intel.enable_shadow_vmcs=1 kvm-intel.pml=1 kvm-intel.enable_apicv=1" \
	-nographic \
	-pidfile vm.pid \
	2>&1 | tee vm.log