cregit-Linux how code gets into the kernel

Release 4.7 include/xen/events.h

Directory: include/xen
#ifndef _XEN_EVENTS_H

#define _XEN_EVENTS_H

#include <linux/interrupt.h>
#ifdef CONFIG_PCI_MSI
#include <linux/msi.h>
#endif

#include <xen/interface/event_channel.h>
#include <asm/xen/hypercall.h>
#include <asm/xen/events.h>

unsigned xen_evtchn_nr_channels(void);

int bind_evtchn_to_irq(unsigned int evtchn);
int bind_evtchn_to_irqhandler(unsigned int evtchn,
			      irq_handler_t handler,
			      unsigned long irqflags, const char *devname,
			      void *dev_id);
int bind_virq_to_irq(unsigned int virq, unsigned int cpu, bool percpu);
int bind_virq_to_irqhandler(unsigned int virq, unsigned int cpu,
			    irq_handler_t handler,
			    unsigned long irqflags, const char *devname,
			    void *dev_id);
int bind_ipi_to_irqhandler(enum ipi_vector ipi,
			   unsigned int cpu,
			   irq_handler_t handler,
			   unsigned long irqflags,
			   const char *devname,
			   void *dev_id);
int bind_interdomain_evtchn_to_irq(unsigned int remote_domain,
				   unsigned int remote_port);
int bind_interdomain_evtchn_to_irqhandler(unsigned int remote_domain,
					  unsigned int remote_port,
					  irq_handler_t handler,
					  unsigned long irqflags,
					  const char *devname,
					  void *dev_id);

/*
 * Common unbind function for all event sources. Takes IRQ to unbind from.
 * Automatically closes the underlying event channel (even for bindings
 * made with bind_evtchn_to_irqhandler()).
 */
void unbind_from_irqhandler(unsigned int irq, void *dev_id);


#define XEN_IRQ_PRIORITY_MAX     EVTCHN_FIFO_PRIORITY_MAX

#define XEN_IRQ_PRIORITY_DEFAULT EVTCHN_FIFO_PRIORITY_DEFAULT

#define XEN_IRQ_PRIORITY_MIN     EVTCHN_FIFO_PRIORITY_MIN
int xen_set_irq_priority(unsigned irq, unsigned priority);

/*
 * Allow extra references to event channels exposed to userspace by evtchn
 */
int evtchn_make_refcounted(unsigned int evtchn);
int evtchn_get(unsigned int evtchn);
void evtchn_put(unsigned int evtchn);

void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector);
void rebind_evtchn_irq(int evtchn, int irq);


static inline void notify_remote_via_evtchn(int port) { struct evtchn_send send = { .port = port }; (void)HYPERVISOR_event_channel_op(EVTCHNOP_send, &send); }

Contributors

PersonTokensPropCommitsCommitProp
jeremy fitzhardingejeremy fitzhardinge32100.00%1100.00%
Total32100.00%1100.00%

void notify_remote_via_irq(int irq); void xen_irq_resume(void); /* Clear an irq's pending state, in preparation for polling on it */ void xen_clear_irq_pending(int irq); void xen_set_irq_pending(int irq); bool xen_test_irq_pending(int irq); /* Poll waiting for an irq to become pending. In the usual case, the irq will be disabled so it won't deliver an interrupt. */ void xen_poll_irq(int irq); /* Poll waiting for an irq to become pending with a timeout. In the usual case, * the irq will be disabled so it won't deliver an interrupt. */ void xen_poll_irq_timeout(int irq, u64 timeout); /* Determine the IRQ which is bound to an event channel */ unsigned irq_from_evtchn(unsigned int evtchn); int irq_from_virq(unsigned int cpu, unsigned int virq); unsigned int evtchn_from_irq(unsigned irq); /* Xen HVM evtchn vector callback */ void xen_hvm_callback_vector(void); #ifdef CONFIG_TRACING #define trace_xen_hvm_callback_vector xen_hvm_callback_vector #endif int xen_set_callback_via(uint64_t via); void xen_evtchn_do_upcall(struct pt_regs *regs); void xen_hvm_evtchn_do_upcall(void); /* Bind a pirq for a physical interrupt to an irq. */ int xen_bind_pirq_gsi_to_irq(unsigned gsi, unsigned pirq, int shareable, char *name); #ifdef CONFIG_PCI_MSI /* Allocate a pirq for a MSI style physical interrupt. */ int xen_allocate_pirq_msi(struct pci_dev *dev, struct msi_desc *msidesc); /* Bind an PSI pirq to an irq. */ int xen_bind_pirq_msi_to_irq(struct pci_dev *dev, struct msi_desc *msidesc, int pirq, int nvec, const char *name, domid_t domid); #endif /* De-allocates the above mentioned physical interrupt. */ int xen_destroy_irq(int irq); /* Return irq from pirq */ int xen_irq_from_pirq(unsigned pirq); /* Return the pirq allocated to the irq. */ int xen_pirq_from_irq(unsigned irq); /* Return the irq allocated to the gsi */ int xen_irq_from_gsi(unsigned gsi); /* Determine whether to ignore this IRQ if it is passed to a guest. */ int xen_test_irq_shared(int irq); /* initialize Xen IRQ subsystem */ void xen_init_IRQ(void); #endif /* _XEN_EVENTS_H */

Overall Contributors

PersonTokensPropCommitsCommitProp
jeremy fitzhardingejeremy fitzhardinge22843.26%823.53%
ian campbellian campbell6913.09%514.71%
david vrabeldavid vrabel519.68%411.76%
stefano stabellinistefano stabellini478.92%514.71%
konrad rzeszutek wilkkonrad rzeszutek wilk305.69%411.76%
sheng yangsheng yang295.50%12.94%
daniel de graafdaniel de graaf254.74%12.94%
juergen grossjuergen gross122.28%12.94%
roger pau monneroger pau monne112.09%12.94%
seiji aguchiseiji aguchi91.71%12.94%
alex nixonalex nixon81.52%12.94%
qing heqing he50.95%12.94%
isaku yamahataisaku yamahata30.57%12.94%
Total527100.00%34100.00%
Directory: include/xen
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