tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef _XEN_EVENTS_H
2#define _XEN_EVENTS_H
3
4#include <linux/interrupt.h>
5
6#include <xen/interface/event_channel.h>
7#include <asm/xen/hypercall.h>
8
9enum ipi_vector {
10 XEN_RESCHEDULE_VECTOR,
11 XEN_CALL_FUNCTION_VECTOR,
12
13 XEN_NR_IPIS,
14};
15
16int bind_evtchn_to_irq(unsigned int evtchn);
17int bind_evtchn_to_irqhandler(unsigned int evtchn,
18 irq_handler_t handler,
19 unsigned long irqflags, const char *devname,
20 void *dev_id);
21int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu,
22 irq_handler_t handler,
23 unsigned long irqflags, const char *devname,
24 void *dev_id);
25int bind_ipi_to_irqhandler(enum ipi_vector ipi,
26 unsigned int cpu,
27 irq_handler_t handler,
28 unsigned long irqflags,
29 const char *devname,
30 void *dev_id);
31
32/*
33 * Common unbind function for all event sources. Takes IRQ to unbind from.
34 * Automatically closes the underlying event channel (even for bindings
35 * made with bind_evtchn_to_irqhandler()).
36 */
37void unbind_from_irqhandler(unsigned int irq, void *dev_id);
38
39void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector);
40
41static inline void notify_remote_via_evtchn(int port)
42{
43 struct evtchn_send send = { .port = port };
44 (void)HYPERVISOR_event_channel_op(EVTCHNOP_send, &send);
45}
46
47extern void notify_remote_via_irq(int irq);
48#endif /* _XEN_EVENTS_H */