14c87aefeSPatrick Mooney /*- 2*32640292SAndy Fiddaman * SPDX-License-Identifier: BSD-2-Clause 34c87aefeSPatrick Mooney * 44c87aefeSPatrick Mooney * Copyright (c) 2014 Neel Natu (neel@freebsd.org) 54c87aefeSPatrick Mooney * All rights reserved. 64c87aefeSPatrick Mooney * 74c87aefeSPatrick Mooney * Redistribution and use in source and binary forms, with or without 84c87aefeSPatrick Mooney * modification, are permitted provided that the following conditions 94c87aefeSPatrick Mooney * are met: 104c87aefeSPatrick Mooney * 1. Redistributions of source code must retain the above copyright 114c87aefeSPatrick Mooney * notice unmodified, this list of conditions, and the following 124c87aefeSPatrick Mooney * disclaimer. 134c87aefeSPatrick Mooney * 2. Redistributions in binary form must reproduce the above copyright 144c87aefeSPatrick Mooney * notice, this list of conditions and the following disclaimer in the 154c87aefeSPatrick Mooney * documentation and/or other materials provided with the distribution. 164c87aefeSPatrick Mooney * 174c87aefeSPatrick Mooney * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 184c87aefeSPatrick Mooney * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 194c87aefeSPatrick Mooney * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 204c87aefeSPatrick Mooney * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 214c87aefeSPatrick Mooney * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 224c87aefeSPatrick Mooney * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 234c87aefeSPatrick Mooney * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 244c87aefeSPatrick Mooney * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 254c87aefeSPatrick Mooney * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 264c87aefeSPatrick Mooney * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 274c87aefeSPatrick Mooney */ 284c87aefeSPatrick Mooney 294c87aefeSPatrick Mooney #ifndef _SVM_MSR_H_ 304c87aefeSPatrick Mooney #define _SVM_MSR_H_ 314c87aefeSPatrick Mooney 324c87aefeSPatrick Mooney struct svm_softc; 334c87aefeSPatrick Mooney 344c87aefeSPatrick Mooney void svm_msr_guest_init(struct svm_softc *sc, int vcpu); 354c87aefeSPatrick Mooney void svm_msr_guest_enter(struct svm_softc *sc, int vcpu); 364c87aefeSPatrick Mooney void svm_msr_guest_exit(struct svm_softc *sc, int vcpu); 374c87aefeSPatrick Mooney 38d2f938fdSPatrick Mooney vm_msr_result_t svm_wrmsr(struct svm_softc *, int, uint32_t, uint64_t); 39d2f938fdSPatrick Mooney vm_msr_result_t svm_rdmsr(struct svm_softc *, int, uint32_t, uint64_t *); 404c87aefeSPatrick Mooney 41717646f7SJordan Paige Hendricks /* 42717646f7SJordan Paige Hendricks * TSC Frequency Multiplier MSR related values 43717646f7SJordan Paige Hendricks */ 44717646f7SJordan Paige Hendricks 45717646f7SJordan Paige Hendricks /* N integer bits of frequency multiplier */ 46717646f7SJordan Paige Hendricks #define AMD_TSCM_INT_SIZE 8 47717646f7SJordan Paige Hendricks 48717646f7SJordan Paige Hendricks /* N fractional bits of frequency multiplier */ 49717646f7SJordan Paige Hendricks #define AMD_TSCM_FRAC_SIZE 32 50717646f7SJordan Paige Hendricks 51717646f7SJordan Paige Hendricks /* 52717646f7SJordan Paige Hendricks * The reset value of the frequency multiplier is 1.0 (section 15.30.5 of AMD 53717646f7SJordan Paige Hendricks * Architecture Programmer's Manual Volume 2), indicating the host and guest 54717646f7SJordan Paige Hendricks * have the same TSC frequency. 55717646f7SJordan Paige Hendricks */ 56717646f7SJordan Paige Hendricks #define AMD_TSCM_RESET_VAL (1ULL << AMD_TSCM_FRAC_SIZE) 57717646f7SJordan Paige Hendricks 584c87aefeSPatrick Mooney #endif /* _SVM_MSR_H_ */ 59