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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/amd64/vmm/io/vioapic.h
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/*-

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 * SPDX-License-Identifier: BSD-2-Clause

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 *

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 * Copyright (c) 2013 Tycho Nightingale <[email protected]>

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 * Copyright (c) 2013 Neel Natu <[email protected]>

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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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#ifndef _VIOAPIC_H_

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#define	_VIOAPIC_H_

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#define	VIOAPIC_BASE	0xFEC00000

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#define	VIOAPIC_SIZE	4096

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#ifdef _KERNEL

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struct vm_snapshot_meta;

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struct vioapic *vioapic_init(struct vm *vm);

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void	vioapic_cleanup(struct vioapic *vioapic);

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int	vioapic_assert_irq(struct vm *vm, int irq);

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int	vioapic_deassert_irq(struct vm *vm, int irq);

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int	vioapic_pulse_irq(struct vm *vm, int irq);

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int	vioapic_mmio_write(struct vcpu *vcpu, uint64_t gpa,

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	    uint64_t wval, int size, void *arg);

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int	vioapic_mmio_read(struct vcpu *vcpu, uint64_t gpa,

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	    uint64_t *rval, int size, void *arg);

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int	vioapic_pincount(struct vm *vm);

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void	vioapic_process_eoi(struct vm *vm, int vector);

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#ifdef BHYVE_SNAPSHOT

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int	vioapic_snapshot(struct vioapic *vioapic,

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			 struct vm_snapshot_meta *meta);

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#endif

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#endif /* _KERNEL */

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#endif /* _VIOAPIC_H_ */

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