#!/bin/bash
set -e

if [ -f "$HARVEY/util/harvey.qcow2" ]
then
	HARVEY_DISK="$HARVEY/util/harvey.qcow2"
elif [ -f "$HARVEY/util/harvey.raw" ]
then
	HARVEY_DISK="$HARVEY/util/harvey.raw,format=raw"
else
	echo "ERROR: Disk image not found"
	exit 1
fi

trap : 2

$HARVEY/util/ufs -root=$HARVEY &
ufspid=$!

export machineflag=q35
if [ "$(uname)" = "Linux" ] && [ -e /dev/kvm ]; then
	export kvmflag='-enable-kvm'
	export machineflag='pc,accel=kvm'
	if [ ! -w /dev/kvm ]; then
		# we don't have access as a regular user
		export kvmdo=sudo
	fi
fi

# The -usb flag is necessary for the system to recognize usb devices
# To specify a specific device you must follow the following format:
#      -device usb-host,hostbus='X',hostaddr='Y'
# The 'X'/'Y' values can be found with lsusb(8) (Linux/BSD)
# Provided is an example lsusb(8) output:
#       Bus 002 Device 004: ID 056a:00e6 Wacom Co., Ltd TPCE6
# Where 'X'== 2 and 'Y'== 4
read -r cmd <<EOF
$kvmdo qemu-system-x86_64 -s -cpu Opteron_G1 -smp 2 -m 2048 $kvmflag \
-usb \
-serial stdio \
--machine $machineflag \
-net nic,model=rtl8139 \
-net user,id=user.0,\
hostfwd=tcp::5555-:1522,\
hostfwd=tcp::9999-:9,\
hostfwd=tcp::17010-:17010,\
hostfwd=tcp::1666-:1666,\
hostfwd=tcp::5356-:5356,\
hostfwd=tcp::17013-:17013 \
-object filter-dump,id=f1,netdev=user.0,file=/tmp/vm0.pcap \
-drive id=disk,file=$HARVEY_DISK,if=none \
-device ich9-ahci,id=ahci \
-device ide-drive,drive=disk,bus=ahci.0 \
$*
EOF

echo $cmd
eval $cmd

kill $ufspid
wait