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/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2017 The FreeBSD Foundation
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the company nor the name of the author may be used to
* endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _VMM_VTIMER_H_
#define _VMM_VTIMER_H_
#define GT_PHYS_NS_IRQ 30
#define GT_VIRT_IRQ 27
struct hyp;
struct hypctx;
struct vtimer {
uint64_t cnthctl_el2;
uint64_t cntvoff_el2;
};
struct vtimer_timer {
struct callout callout;
struct mtx mtx;
uint32_t irqid;
/*
* These registers are either emulated for the physical timer, or
* the guest has full access to them for the virtual timer.
* CNTx_CTL_EL0: Counter-timer Timer Control Register
* CNTx_CVAL_EL0: Counter-timer Timer CompareValue Register
*/
uint64_t cntx_cval_el0;
uint64_t cntx_ctl_el0;
};
struct vtimer_cpu {
struct vtimer_timer phys_timer;
struct vtimer_timer virt_timer;
uint32_t cntkctl_el1;
};
int vtimer_init(void);
void vtimer_vminit(struct hyp *);
void vtimer_cpuinit(struct hypctx *);
void vtimer_cpucleanup(struct hypctx *);
void vtimer_vmcleanup(struct hyp *);
void vtimer_cleanup(void);
void vtimer_sync_hwstate(struct hypctx *hypctx);
int vtimer_phys_ctl_read(struct vcpu *vcpu, uint64_t *rval, void *arg);
int vtimer_phys_ctl_write(struct vcpu *vcpu, uint64_t wval, void *arg);
int vtimer_phys_cnt_read(struct vcpu *vcpu, uint64_t *rval, void *arg);
int vtimer_phys_cnt_write(struct vcpu *vcpu, uint64_t wval, void *arg);
int vtimer_phys_cval_read(struct vcpu *vcpu, uint64_t *rval, void *arg);
int vtimer_phys_cval_write(struct vcpu *vcpu, uint64_t wval, void *arg);
int vtimer_phys_tval_read(struct vcpu *vcpu, uint64_t *rval, void *arg);
int vtimer_phys_tval_write(struct vcpu *vcpu, uint64_t wval, void *arg);
#endif
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