1 files changed, 59 insertions, 0 deletions
diff --git a/src/include/ipxe/xenevent.h b/src/include/ipxe/xenevent.h
new file mode 100644
index 00000000..1dd6a0c0
--- /dev/null
+++ b/src/include/ipxe/xenevent.h
@@ -0,0 +1,59 @@
+#ifndef _IPXE_XENEVENT_H
+#define _IPXE_XENEVENT_H
+
+/** @file
+ *
+ * Xen events
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER );
+
+#include <ipxe/xen.h>
+#include <xen/event_channel.h>
+
+/**
+ * Close event channel
+ *
+ * @v xen		Xen hypervisor
+ * @v close		Event descriptor
+ * @ret xenrc		Xen status code
+ */
+static inline __attribute__ (( always_inline )) int
+xenevent_close ( struct xen_hypervisor *xen, struct evtchn_close *close ) {
+
+	return xen_hypercall_2 ( xen, __HYPERVISOR_event_channel_op,
+				 EVTCHNOP_close, virt_to_phys ( close ) );
+}
+
+/**
+ * Send event
+ *
+ * @v xen		Xen hypervisor
+ * @v send		Event descriptor
+ * @ret xenrc		Xen status code
+ */
+static inline __attribute__ (( always_inline )) int
+xenevent_send ( struct xen_hypervisor *xen, struct evtchn_send *send ) {
+
+	return xen_hypercall_2 ( xen, __HYPERVISOR_event_channel_op,
+				 EVTCHNOP_send, virt_to_phys ( send ) );
+}
+
+/**
+ * Allocate an unbound event channel
+ *
+ * @v xen		Xen hypervisor
+ * @v alloc_unbound	Event descriptor
+ * @ret xenrc		Xen status code
+ */
+static inline __attribute__ (( always_inline )) int
+xenevent_alloc_unbound ( struct xen_hypervisor *xen,
+			 struct evtchn_alloc_unbound *alloc_unbound ) {
+
+	return xen_hypercall_2 ( xen, __HYPERVISOR_event_channel_op,
+				 EVTCHNOP_alloc_unbound,
+				 virt_to_phys ( alloc_unbound ) );
+}
+
+#endif /* _IPXE_XENEVENT_H */