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35 int vlapic_write(struct vlapic *vlapic, uint64_t offset, uint64_t data,
37 int vlapic_read(struct vlapic *vlapic, uint64_t offset, uint64_t *data,
41 * Returns 0 if there is no eligible vector that can be delivered to the
42 * guest at this time and non-zero otherwise.
44 * If an eligible vector number is found and 'vecptr' is not NULL then it will
45 * be stored in the location pointed to by 'vecptr'.
47 * Note that the vector does not automatically transition to the ISR as a
48 * result of calling this function.
50 int vlapic_pending_intr(struct vlapic *vlapic, int *vecptr);
53 * Transition 'vector' from IRR to ISR. This function is called with the
54 * vector returned by 'vlapic_pending_intr()' when the guest is able to
55 * accept this interrupt (i.e. RFLAGS.IF = 1 and no conditions exist that
56 * block interrupt delivery).
58 void vlapic_intr_accepted(struct vlapic *vlapic, int vector);
61 * Returns 1 if the vcpu needs to be notified of the interrupt and 0 otherwise.
63 int vlapic_set_intr_ready(struct vlapic *vlapic, int vector, bool level);
66 * Post an interrupt to the vcpu running on 'hostcpu'. This will use a
67 * hardware assist if available (e.g. Posted Interrupt) or fall back to
68 * sending an 'ipinum' to interrupt the 'hostcpu'.
70 void vlapic_post_intr(struct vlapic *vlapic, int hostcpu, int ipinum);
72 void vlapic_set_error(struct vlapic *vlapic, uint32_t mask);
73 void vlapic_fire_cmci(struct vlapic *vlapic);
74 int vlapic_trigger_lvt(struct vlapic *vlapic, int vector);
76 uint64_t vlapic_get_apicbase(struct vlapic *vlapic);
77 void vlapic_set_apicbase(struct vlapic *vlapic, uint64_t val);
78 void vlapic_set_x2apic_state(struct vm *vm, int vcpuid, enum x2apic_state s);
79 bool vlapic_enabled(struct vlapic *vlapic);
81 void vlapic_deliver_intr(struct vm *vm, bool level, uint32_t dest, bool phys,
82 int delmode, int vec);
84 /* Reset the trigger-mode bits for all vectors to be edge-triggered */
85 void vlapic_reset_tmr(struct vlapic *vlapic);
88 * Set the trigger-mode bit associated with 'vector' to level-triggered if
89 * the (dest,phys,delmode) tuple resolves to an interrupt being delivered to
92 void vlapic_set_tmr_level(struct vlapic *vlapic, uint32_t dest, bool phys,
93 int delmode, int vector);
95 /* APIC write handlers */
96 void vlapic_id_write_handler(struct vlapic *vlapic);
97 void vlapic_ldr_write_handler(struct vlapic *vlapic);
98 void vlapic_dfr_write_handler(struct vlapic *vlapic);
99 void vlapic_svr_write_handler(struct vlapic *vlapic);
100 void vlapic_esr_write_handler(struct vlapic *vlapic);
101 int vlapic_icrlo_write_handler(struct vlapic *vlapic, bool *retu);
102 void vlapic_icrtmr_write_handler(struct vlapic *vlapic);
103 void vlapic_dcr_write_handler(struct vlapic *vlapic);
104 void vlapic_lvt_write_handler(struct vlapic *vlapic, uint32_t offset);
105 #endif /* _VLAPIC_H_ */