#!/bin/sh

guestdisk=fbsd-udbc.raw
vmname=$(basename $guestdisk .raw)-$(hostname)

xhcidev="0/20/0"
pcidev="pci0:$(echo $xhcidev | sed -e 's/\//:/g')"
guestIF=tap0

bhyve=bhyve
bhyve=/usr/obj/usr/src/amd64.amd64/usr.sbin/bhyve/bhyve
vmm=bhyve

if [ "$1" == "qemu" ]
then
	shift
	vmm="qemu"
fi


if [ "$1" != "nopass" ]
then
	passthru="-s 7,passthru,${xhcidev}"

	driver=$(pciconf -l pci0:0:20:0 | awk -F '\@' '{ print $1}' | sed 's/[0-9]//g')
	if [ "$driver" != "ppt" ]
	then
		echo changing driver from $driver to ppt for pcidev $pcidev

		devctl detach $pcidev
		devctl set driver $pcidev ppt
	fi

else
	passthru=""
fi

if [ "$1" == "debug" ]
then
	shift
	if [ "$1" == "wait" ]
	then
		bhyveflags="-G w0.0.0.0:1234"
		qemuflags="-gdb tcp:0.0.0.0:1234 -S"
		shift
	else
		bhyveflags="-G 0.0.0.0:1234"
		qemuflags="-gdb tcp:0.0.0.0:1234"
	fi
fi

if [ -e /dev/vmm/$vmname ]
then
	echo "removing existing instance of $vmname"
	bhyvectl --destroy --vm=fbsd-udbc-iwx-test 
fi

if [ "$(uname)" == "FreeBSD" ]
then
	echo "updating loader"
	sudo sh /home/tj/vms/udbc/updateloader.sh

	echo "starting vm: ${vmname} on ${vmm}"
	sleep 1
	
	if [ "$vmm" == "qemu" ]
	then	
		qemu-system-x86_64 \
			-display none \
			-smp 4 \
			-m 2048 \
			--bios /usr/local/share/edk2-qemu/QEMU_UEFI-x86_64.fd \
			$qemuflags \
			-device virtio-serial-pci \
			-serial mon:stdio \
			-monitor telnet:localhost:4322,server,nowait \
			-net nic \
			-net user,hostfwd=tcp::2222-:22 \
			-drive file=${guestdisk},format=raw,if=virtio
	else
		while true
		do
			$bhyve   $bhyveflags \
				-c 4 \
				-m 512 \
				-wH \
				-S \
				-s 0,hostbridge \
				-s 4,ahci-hd,${guestdisk} \
				-s 5,virtio-net,${guestIF} \
				$passthru \
				-s 29,fbuf,tcp=0.0.0.0:5900,w=1920,h=1080,nowait \
				-s 31,lpc \
				-l com1,stdio \
				-l bootrom,/usr/local/share/uefi-firmware/BHYVE_UEFI.fd \
				${vmname}

				#-s 30,xhci,tablet \
			if [ $? -ne 0 ]
				then
				exit
			fi
		done
	fi
#	vmpid=$!
fi

#echo waiting for $vmpid
#wait $vmpid

bhyvectl --vm=${vmname} --destroy