1 files changed, 38 insertions, 0 deletions

diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 74681478100a..a41601675633 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -864,6 +864,21 @@ static int bind_ipi_to_irq(unsigned int ipi, unsigned int cpu)
         return irq;
 }
 
+static int bind_interdomain_evtchn_to_irq(unsigned int remote_domain,
+                                          unsigned int remote_port)
+{
+        struct evtchn_bind_interdomain bind_interdomain;
+        int err;
+
+        bind_interdomain.remote_dom  = remote_domain;
+        bind_interdomain.remote_port = remote_port;
+
+        err = HYPERVISOR_event_channel_op(EVTCHNOP_bind_interdomain,
+                                          &bind_interdomain);
+
+        return err ? : bind_evtchn_to_irq(bind_interdomain.local_port);
+}
+
 
 int bind_virq_to_irq(unsigned int virq, unsigned int cpu)
 {
@@ -959,6 +974,29 @@ int bind_evtchn_to_irqhandler(unsigned int evtchn,
 }
 EXPORT_SYMBOL_GPL(bind_evtchn_to_irqhandler);
 
+int bind_interdomain_evtchn_to_irqhandler(unsigned int remote_domain,
+                                          unsigned int remote_port,
+                                          irq_handler_t handler,
+                                          unsigned long irqflags,
+                                          const char *devname,
+                                          void *dev_id)
+{
+        int irq, retval;
+
+        irq = bind_interdomain_evtchn_to_irq(remote_domain, remote_port);
+        if (irq < 0)
+                return irq;
+
+        retval = request_irq(irq, handler, irqflags, devname, dev_id);
+        if (retval != 0) {
+                unbind_from_irq(irq);
+                return retval;
+        }
+
+        return irq;
+}
+EXPORT_SYMBOL_GPL(bind_interdomain_evtchn_to_irqhandler);
+
 int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu,
                             irq_handler_t handler,
                             unsigned long irqflags, const char *devname, void *dev_id)