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-rw-r--r--include/xen/events.h44
1 files changed, 41 insertions, 3 deletions
diff --git a/include/xen/events.h b/include/xen/events.h
index a15d93262e30..9af21e19545a 100644
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -12,6 +12,7 @@ int bind_evtchn_to_irqhandler(unsigned int evtchn,
12 irq_handler_t handler, 12 irq_handler_t handler,
13 unsigned long irqflags, const char *devname, 13 unsigned long irqflags, const char *devname,
14 void *dev_id); 14 void *dev_id);
15int bind_virq_to_irq(unsigned int virq, unsigned int cpu);
15int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu, 16int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu,
16 irq_handler_t handler, 17 irq_handler_t handler,
17 unsigned long irqflags, const char *devname, 18 unsigned long irqflags, const char *devname,
@@ -22,6 +23,12 @@ int bind_ipi_to_irqhandler(enum ipi_vector ipi,
22 unsigned long irqflags, 23 unsigned long irqflags,
23 const char *devname, 24 const char *devname,
24 void *dev_id); 25 void *dev_id);
26int bind_interdomain_evtchn_to_irqhandler(unsigned int remote_domain,
27 unsigned int remote_port,
28 irq_handler_t handler,
29 unsigned long irqflags,
30 const char *devname,
31 void *dev_id);
25 32
26/* 33/*
27 * Common unbind function for all event sources. Takes IRQ to unbind from. 34 * Common unbind function for all event sources. Takes IRQ to unbind from.
@@ -40,9 +47,9 @@ static inline void notify_remote_via_evtchn(int port)
40 (void)HYPERVISOR_event_channel_op(EVTCHNOP_send, &send); 47 (void)HYPERVISOR_event_channel_op(EVTCHNOP_send, &send);
41} 48}
42 49
43extern void notify_remote_via_irq(int irq); 50void notify_remote_via_irq(int irq);
44 51
45extern void xen_irq_resume(void); 52void xen_irq_resume(void);
46 53
47/* Clear an irq's pending state, in preparation for polling on it */ 54/* Clear an irq's pending state, in preparation for polling on it */
48void xen_clear_irq_pending(int irq); 55void xen_clear_irq_pending(int irq);
@@ -53,14 +60,45 @@ bool xen_test_irq_pending(int irq);
53 irq will be disabled so it won't deliver an interrupt. */ 60 irq will be disabled so it won't deliver an interrupt. */
54void xen_poll_irq(int irq); 61void xen_poll_irq(int irq);
55 62
63/* Poll waiting for an irq to become pending with a timeout. In the usual case,
64 * the irq will be disabled so it won't deliver an interrupt. */
65void xen_poll_irq_timeout(int irq, u64 timeout);
66
56/* Determine the IRQ which is bound to an event channel */ 67/* Determine the IRQ which is bound to an event channel */
57unsigned irq_from_evtchn(unsigned int evtchn); 68unsigned irq_from_evtchn(unsigned int evtchn);
58 69
59/* Xen HVM evtchn vector callback */ 70/* Xen HVM evtchn vector callback */
60extern void xen_hvm_callback_vector(void); 71void xen_hvm_callback_vector(void);
61extern int xen_have_vector_callback; 72extern int xen_have_vector_callback;
62int xen_set_callback_via(uint64_t via); 73int xen_set_callback_via(uint64_t via);
63void xen_evtchn_do_upcall(struct pt_regs *regs); 74void xen_evtchn_do_upcall(struct pt_regs *regs);
64void xen_hvm_evtchn_do_upcall(void); 75void xen_hvm_evtchn_do_upcall(void);
65 76
77/* Allocate a pirq for a physical interrupt, given a gsi. */
78int xen_allocate_pirq_gsi(unsigned gsi);
79/* Bind a pirq for a physical interrupt to an irq. */
80int xen_bind_pirq_gsi_to_irq(unsigned gsi,
81 unsigned pirq, int shareable, char *name);
82
83#ifdef CONFIG_PCI_MSI
84/* Allocate a pirq for a MSI style physical interrupt. */
85int xen_allocate_pirq_msi(struct pci_dev *dev, struct msi_desc *msidesc);
86/* Bind an PSI pirq to an irq. */
87int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc,
88 int pirq, int vector, const char *name,
89 domid_t domid);
90#endif
91
92/* De-allocates the above mentioned physical interrupt. */
93int xen_destroy_irq(int irq);
94
95/* Return irq from pirq */
96int xen_irq_from_pirq(unsigned pirq);
97
98/* Return the pirq allocated to the irq. */
99int xen_pirq_from_irq(unsigned irq);
100
101/* Determine whether to ignore this IRQ if it is passed to a guest. */
102int xen_test_irq_shared(int irq);
103
66#endif /* _XEN_EVENTS_H */ 104#endif /* _XEN_EVENTS_H */