89dbc92028
bhyve supports a single timer block with 8 timers. The timers are all 32-bit and capable of being operated in periodic mode. All timers support interrupt delivery using MSI. Timers 0 and 1 also support legacy interrupt routing. At the moment the timers are not connected to any ioapic pins but that will be addressed in a subsequent commit. This change is based on a patch from Tycho Nightingale (tycho.nightingale@pluribusnetworks.com).
45 lines
1.8 KiB
C
45 lines
1.8 KiB
C
/*-
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* Copyright (c) 2013 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com>
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* Copyright (c) 2013 Neel Natu <neel@freebsd.org>
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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 _VHPET_H_
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#define _VHPET_H_
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#define VHPET_BASE 0xfed00000
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#define VHPET_SIZE 1024
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struct vhpet *vhpet_init(struct vm *vm);
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void vhpet_cleanup(struct vhpet *vhpet);
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int vhpet_mmio_write(void *vm, int vcpuid, uint64_t gpa, uint64_t val,
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int size, void *arg);
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int vhpet_mmio_read(void *vm, int vcpuid, uint64_t gpa, uint64_t *val,
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int size, void *arg);
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int vhpet_getcap(struct vm_hpet_cap *cap);
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#endif /* _VHPET_H_ */
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