diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/xen.h | 2 | ||||
| -rw-r--r-- | include/xen/events.h | 42 |
2 files changed, 43 insertions, 1 deletions
diff --git a/include/xen.h b/include/xen.h index abc3546dd2b..64ed3f0654a 100644 --- a/include/xen.h +++ b/include/xen.h @@ -8,7 +8,7 @@ /** * xen_init() - Xen initialization * - * Map Xen memory pages. + * Map Xen memory pages, initialize event handler. */ void xen_init(void); diff --git a/include/xen/events.h b/include/xen/events.h new file mode 100644 index 00000000000..82bd18b48c8 --- /dev/null +++ b/include/xen/events.h @@ -0,0 +1,42 @@ +/* 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/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_ */ |