interrupt_ack

Description

The interrupt_ack_fn_t function is called by an interrupt target to ack an interrupt. Returns the interrupt vector.

typedef int (*interrupt_ack_fn_t)(conf_object_t *NOTNULL);

Interface for acked interrupts. The target is typically a cpu that later calls the supplied ack function when the interrupt is actually taken.

The ack argument in the lower_interrupt function serves no purpose and should not be used.

To recover the ack function after a checkpoint restoration, read it from the interrupt_cpu interface.

SIM_INTERFACE(interrupt_ack) {
        void (*raise_interrupt)(conf_object_t *NOTNULL obj,
                                interrupt_ack_fn_t cb,
                                conf_object_t *ack_obj);
        void (*lower_interrupt)(conf_object_t *NOTNULL obj,
                                interrupt_ack_fn_t cb);
};

#define INTERRUPT_ACK_INTERFACE "interrupt_ack"

Execution Context

Cell Context for all methods.