events.h 1.1 KB

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  1. /* SPDX-License-Identifier: GPL-2.0
  2. *
  3. * (C) 2003 - Rolf Neugebauer - Intel Research Cambridge
  4. * (C) 2005 - Grzegorz Milos - Intel Reseach Cambridge
  5. * (C) 2020 - EPAM Systems Inc.
  6. *
  7. * File: events.h
  8. * Author: Rolf Neugebauer (neugebar@dcs.gla.ac.uk)
  9. * Changes: Grzegorz Milos (gm281@cam.ac.uk)
  10. *
  11. * Date: Jul 2003, changes Jun 2005
  12. *
  13. * Description: Deals with events on the event channels
  14. */
  15. #ifndef _EVENTS_H_
  16. #define _EVENTS_H_
  17. #include <asm/xen/hypercall.h>
  18. #include <xen/interface/event_channel.h>
  19. void init_events(void);
  20. void fini_events(void);
  21. int do_event(evtchn_port_t port, struct pt_regs *regs);
  22. void unbind_evtchn(evtchn_port_t port);
  23. void unbind_all_ports(void);
  24. int evtchn_alloc_unbound(domid_t pal,
  25. void (*handler)(evtchn_port_t, struct pt_regs *, void *),
  26. void *data, evtchn_port_t *port);
  27. /* Send notification via event channel */
  28. static inline int notify_remote_via_evtchn(evtchn_port_t port)
  29. {
  30. struct evtchn_send op;
  31. op.port = port;
  32. return HYPERVISOR_event_channel_op(EVTCHNOP_send, &op);
  33. }
  34. void eventchn_poll(void);
  35. #endif /* _EVENTS_H_ */