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73 lines
2.4 KiB
C
73 lines
2.4 KiB
C
/* $NetBSD: evtchn.h,v 1.23 2015/03/14 10:49:36 bouyer Exp $ */
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/*
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*
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* Copyright (c) 2004 Christian Limpach.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _XEN_EVENTS_H_
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#define _XEN_EVENTS_H_
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#define NR_PIRQS 256
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extern struct evtsource *evtsource[];
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void events_default_setup(void);
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void events_init(void);
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bool events_suspend(void);
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bool events_resume(void);
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unsigned int evtchn_do_event(int, struct intrframe *);
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void call_evtchn_do_event(int, struct intrframe *);
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void call_xenevt_event(int);
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int event_set_handler(int, int (*func)(void *), void *, int, const char *);
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int event_remove_handler(int, int (*func)(void *), void *);
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struct cpu_info;
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struct intrhand;
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void event_set_iplhandler(struct cpu_info *, struct intrhand *, int);
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extern int debug_port;
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extern int xen_debug_handler(void *);
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int bind_virq_to_evtch(int);
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int bind_pirq_to_evtch(int);
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int unbind_pirq_from_evtch(int);
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int unbind_virq_from_evtch(int);
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evtchn_port_t bind_vcpu_to_evtch(cpuid_t);
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struct pintrhand {
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int pirq;
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int evtch;
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int (*func)(void *);
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void *arg;
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};
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struct pintrhand *pirq_establish(int, int, int (*)(void *), void *, int,
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const char *);
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void pirq_disestablish(struct pintrhand *);
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#endif /* _XEN_EVENTS_H_ */
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