2c52dcd9a8
The handler is now called after the register value is updated in the virtual APIC page. This will make it easier to handle APIC-write VM-exits with APIC register virtualization turned on. Additionally, mask all the LVT entries when the vlapic is software-disabled.
80 lines
3.2 KiB
C
80 lines
3.2 KiB
C
/*-
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* Copyright (c) 2011 NetApp, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _VLAPIC_H_
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#define _VLAPIC_H_
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struct vm;
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enum x2apic_state;
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int vlapic_write(struct vlapic *vlapic, uint64_t offset, uint64_t data,
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bool *retu);
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int vlapic_read(struct vlapic *vlapic, uint64_t offset, uint64_t *data,
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bool *retu);
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/*
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* Returns a vector between 32 and 255 if an interrupt is pending in the
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* IRR that can be delivered based on the current state of ISR and TPR.
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*
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* Note that the vector does not automatically transition to the ISR as a
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* result of calling this function.
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*
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* Returns -1 if there is no eligible vector that can be delivered to the
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* guest at this time.
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*/
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int vlapic_pending_intr(struct vlapic *vlapic);
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/*
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* Transition 'vector' from IRR to ISR. This function is called with the
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* vector returned by 'vlapic_pending_intr()' when the guest is able to
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* accept this interrupt (i.e. RFLAGS.IF = 1 and no conditions exist that
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* block interrupt delivery).
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*/
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void vlapic_intr_accepted(struct vlapic *vlapic, int vector);
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void vlapic_set_intr_ready(struct vlapic *vlapic, int vector, bool level);
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void vlapic_set_error(struct vlapic *vlapic, uint32_t mask);
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void vlapic_fire_cmci(struct vlapic *vlapic);
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int vlapic_trigger_lvt(struct vlapic *vlapic, int vector);
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uint64_t vlapic_get_apicbase(struct vlapic *vlapic);
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void vlapic_set_apicbase(struct vlapic *vlapic, uint64_t val);
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void vlapic_set_x2apic_state(struct vm *vm, int vcpuid, enum x2apic_state s);
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bool vlapic_enabled(struct vlapic *vlapic);
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void vlapic_deliver_intr(struct vm *vm, bool level, uint32_t dest, bool phys,
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int delmode, int vec);
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void vlapic_post_intr(struct vlapic *vlapic, int hostcpu);
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/* APIC write handlers */
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void vlapic_id_write_handler(struct vlapic *vlapic);
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void vlapic_ldr_write_handler(struct vlapic *vlapic);
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void vlapic_dfr_write_handler(struct vlapic *vlapic);
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void vlapic_svr_write_handler(struct vlapic *vlapic);
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#endif /* _VLAPIC_H_ */
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