x86/xen/xen_intr.c

4  * Xen event and interrupt services for x86 HVM guests.
45 #include <sys/interrupt.h>
94 	/** Pointer to this CPU's interrupt statistic counter. */
99 	 * A set bit means interrupt handling is enabled.
176  * physical interrupt sources.
245  * Allocate and register a per-cpu Xen upcall interrupt counter.
247  * \param cpu  The cpu for which to register this interrupt count.
264  * Search for an already allocated but currently unused Xen interrupt
267  * \param type  Restrict the search to interrupt sources of the given
270  * \return  A pointer to a free Xen interrupt source object or NULL.
297  * Allocate a Xen interrupt source object.
299  * \param type  The type of interrupt source to create.
301  * \return  A pointer to a newly allocated Xen interrupt source
341  * Attempt to free an active Xen interrupt source object.
343  * \param isrc  The interrupt source object to release.
379  * Associate an interrupt handler with an already allocated local Xen
382  * \param isrcp       The returned Xen interrupt object associated with
387  * \param filter      An interrupt filter handler.  Specify NULL
389  * \param handler     An interrupt ithread handler.  Optional (can
436 		 * the interrupt load.
463  * Lookup a Xen interrupt source object given an interrupt binding handle.
468  * \returns  A pointer to the Xen interrupt source object associated
469  *           with the given interrupt handle.  NULL if no association
483 	    ("Xen interrupt vector is out of range"));
492  * \param pcpu  The Xen interrupt pcpu data for the cpu being querried.
517  * \param trap_frame  The trap frame context for the current interrupt.
665 		printf("Xen interrupt system initialized\n");
680 	 * Register interrupt count manually as we aren't guaranteed to see a
681 	 * call to xen_intr_assign_cpu() before our first interrupt.
819  * Disable a Xen interrupt source.
821  * \param isrc  The interrupt source to disable.
832  * Determine the global interrupt vector number for
833  * a Xen interrupt source.
835  * \param isrc  The interrupt source to query.
837  * \return  The vector number corresponding to the given interrupt source.
848  * Determine whether or not interrupt events are pending on the
849  * the given interrupt source.
851  * \param isrc  The interrupt source to query.
866  * Perform configuration of an interrupt source.
868  * \param isrc  The interrupt source to configure.
883  * Configure CPU affinity for interrupt source event delivery.
885  * \param isrc     The interrupt source to configure.
913 	 * Mask the event channel while binding it to prevent interrupt
955  * Mask a level triggered interrupt source.
957  * \param isrc  The interrupt source to mask (if necessary).
958  * \param eoi   If non-zero, perform any necessary end-of-interrupt
973 	 * unmasked by the generic interrupt code. The event channel
980  * Unmask a level triggered interrupt source.
982  * \param isrc  The interrupt source to unmask (if necessary).
996  * Perform any necessary end-of-interrupt acknowledgements.
998  * \param isrc  The interrupt source to EOI.
1006  * Enable and unmask the interrupt source.
1008  * \param isrc  The interrupt source to enable.
1020  * Mask a level triggered interrupt source.
1022  * \param isrc  The interrupt source to mask (if necessary).
1023  * \param eoi   If non-zero, perform any necessary end-of-interrupt
1040  * Unmask a level triggered interrupt source.
1042  * \param isrc  The interrupt source to unmask (if necessary).
1056  * Perform any necessary end-of-interrupt acknowledgements.
1058  * \param isrc  The interrupt source to EOI.
1079  * Enable and unmask the interrupt source.
1081  * \param isrc  The interrupt source to enable.
1127  * Disable an interrupt source.
1129  * \param isrc  The interrupt source to disable.
1156  * Perform configuration of an interrupt source.
1158  * \param isrc  The interrupt source to configure.
1183 			panic("unable to reconfigure interrupt IRQ#%d",
1335 		 * Too early in the boot process for the generic interrupt
1391 		 * Too early in the boot process for the generic interrupt
1437 	KASSERT((isrc != NULL), ("xen: unable to allocate isrc for interrupt"));
1474 		    ("xen: unable to allocate isrc for interrupt"));