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/* SPDX-License-Identifier: GPL-2.0
*
* (C) 2003 - Rolf Neugebauer - Intel Research Cambridge
* (C) 2005 - Grzegorz Milos - Intel Reseach Cambridge
* (C) 2020 - EPAM Systems Inc.
*
* File: events.h
* Author: Rolf Neugebauer (neugebar@dcs.gla.ac.uk)
* Changes: Grzegorz Milos (gm281@cam.ac.uk)
*
* Date: Jul 2003, changes Jun 2005
*
* Description: Deals with events on the event channels
*/
#ifndef _EVENTS_H_
#define _EVENTS_H_
#include <asm/ptrace.h>
#include <asm/xen/hypercall.h>
#include <xen/interface/event_channel.h>
void init_events(void);
void fini_events(void);
int do_event(evtchn_port_t port, struct pt_regs *regs);
void unbind_evtchn(evtchn_port_t port);
void unbind_all_ports(void);
int evtchn_alloc_unbound(domid_t pal,
void (*handler)(evtchn_port_t, struct pt_regs *, void *),
void *data, evtchn_port_t *port);
/* Send notification via event channel */
static inline int notify_remote_via_evtchn(evtchn_port_t port)
{
struct evtchn_send op;
op.port = port;
return HYPERVISOR_event_channel_op(EVTCHNOP_send, &op);
}
void eventchn_poll(void);
#endif /* _EVENTS_H_ */
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