1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2017 The FreeBSD Foundation 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the company nor the name of the author may be used to 15 * endorse or promote products derived from this software without specific 16 * prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #ifndef _VMM_VTIMER_H_ 32 #define _VMM_VTIMER_H_ 33 34 #define GT_PHYS_NS_IRQ 30 35 #define GT_VIRT_IRQ 27 36 37 struct hyp; 38 struct hypctx; 39 40 struct vtimer_timer { 41 struct callout callout; 42 struct mtx mtx; 43 44 uint32_t irqid; 45 46 /* 47 * These registers are either emulated for the physical timer, or 48 * the guest has full access to them for the virtual timer. 49 50 * CNTx_CTL_EL0: Counter-timer Timer Control Register 51 * CNTx_CVAL_EL0: Counter-timer Timer CompareValue Register 52 */ 53 uint64_t cntx_cval_el0; 54 uint64_t cntx_ctl_el0; 55 }; 56 57 struct vtimer_cpu { 58 struct vtimer_timer phys_timer; 59 struct vtimer_timer virt_timer; 60 61 uint32_t cntkctl_el1; 62 }; 63 64 int vtimer_init(void); 65 void vtimer_cpuinit(struct hypctx *); 66 void vtimer_cpucleanup(struct hypctx *); 67 void vtimer_vmcleanup(struct hyp *); 68 void vtimer_cleanup(void); 69 void vtimer_sync_hwstate(struct hypctx *hypctx); 70 71 int vtimer_phys_ctl_read(struct vcpu *vcpu, uint64_t *rval, void *arg); 72 int vtimer_phys_ctl_write(struct vcpu *vcpu, uint64_t wval, void *arg); 73 int vtimer_phys_cnt_read(struct vcpu *vcpu, uint64_t *rval, void *arg); 74 int vtimer_phys_cnt_write(struct vcpu *vcpu, uint64_t wval, void *arg); 75 int vtimer_phys_cval_read(struct vcpu *vcpu, uint64_t *rval, void *arg); 76 int vtimer_phys_cval_write(struct vcpu *vcpu, uint64_t wval, void *arg); 77 int vtimer_phys_tval_read(struct vcpu *vcpu, uint64_t *rval, void *arg); 78 int vtimer_phys_tval_write(struct vcpu *vcpu, uint64_t wval, void *arg); 79 #endif 80