static int bind_interdomain_evtchn_to_irq_chip(struct xenbus_device *dev,
					       evtchn_port_t remote_port,
					       struct irq_chip *chip)
static int bind_interdomain_evtchn_to_irq_chip(struct xenbus_device *dev,
					       evtchn_port_t remote_port,
					       struct irq_chip *chip,
					       bool shared)