Add -p parameter to list PCI device to pass through to the guest.

Reviewed by:	neel

share/examples/bhyve/vmrun.sh

@@ -62,6 +62,7 @@ usage() {
 	echo "       -i: force boot of the Installation CDROM image"
 	echo "       -I: Installation CDROM image location (default is ${DEFAULT_ISOFILE})"
 	echo "       -m: memory size (default is ${DEFAULT_MEMSIZE})"
+	echo "       -p: pass-through a host PCI device at bus/slot/func (e.g. 10/0/0)"
 	echo "       -t: tap device for virtio-net (default is $DEFAULT_TAPDEV)"
 	echo ""
 	[ -n "$msg" ] && errmsg "$msg"
@@ -89,8 +90,9 @@ disk_total=0
 apic_opt=""
 gdbport=0
 loader_opt=""
+pass_total=0
 
-while getopts ac:C:d:e:g:hH:iI:m:t: c ; do
+while getopts ac:C:d:e:g:hH:iI:m:p:t: c ; do
 	case $c in
 	a)
 		apic_opt="-a"
@@ -123,6 +125,10 @@ while getopts ac:C:d:e:g:hH:iI:m:t: c ; do
 	m)
 		memsize=${OPTARG}
 		;;
+	p)
+		eval "pass_dev${pass_total}=\"${OPTARG}\""
+		pass_total=$(($pass_total + 1))
+		;;
 	t)
 		eval "tap_dev${tap_total}=\"${OPTARG}\""
 		tap_total=$(($tap_total + 1))
@@ -237,6 +243,14 @@ while [ 1 ]; do
 	    i=$(($i + 1))
 	done
 
+	i=0
+	while [ $i -lt $pass_total ] ; do
+	    eval "pass=\$pass_dev${i}"
+	    devargs="$devargs -s $nextslot:0,passthru,${pass} "
+	    nextslot=$(($nextslot + 1))
+	    i=$(($i + 1))
+        done
+
 	${FBSDRUN} -c ${cpus} -m ${memsize} ${apic_opt} -A -H -P	\
 		-g ${gdbport}						\
 		-s 0:0,hostbridge					\