/*- * Copyright (c) 2009-2012,2016-2017 Microsoft Corp. * Copyright (c) 2012 NetApp Inc. * Copyright (c) 2012 Citrix Inc. * All rights reserved. * * 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 unmodified, 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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. * * $FreeBSD$ */ #ifndef _HYPERV_H_ #define _HYPERV_H_ #ifdef _KERNEL #include <sys/param.h> #include <sys/systm.h> #define MSR_HV_TIME_REF_COUNT 0x40000020 #define CPUID_HV_MSR_TIME_REFCNT 0x0002 /* MSR_HV_TIME_REF_COUNT */ #define CPUID_HV_MSR_SYNIC 0x0004 /* MSRs for SynIC */ #define CPUID_HV_MSR_SYNTIMER 0x0008 /* MSRs for SynTimer */ #define CPUID_HV_MSR_APIC 0x0010 /* MSR_HV_{EOI,ICR,TPR} */ #define CPUID_HV_MSR_HYPERCALL 0x0020 /* MSR_HV_GUEST_OS_ID * MSR_HV_HYPERCALL */ #define CPUID_HV_MSR_VP_INDEX 0x0040 /* MSR_HV_VP_INDEX */ #define CPUID_HV_MSR_REFERENCE_TSC 0x0200 /* MSR_HV_REFERENCE_TSC */ #define CPUID_HV_MSR_GUEST_IDLE 0x0400 /* MSR_HV_GUEST_IDLE */ #ifndef NANOSEC #define NANOSEC 1000000000ULL #endif #define HYPERV_TIMER_NS_FACTOR 100ULL #define HYPERV_TIMER_FREQ (NANOSEC / HYPERV_TIMER_NS_FACTOR) #endif /* _KERNEL */ #define HYPERV_REFTSC_DEVNAME "hv_tsc" /* * Hyper-V Reference TSC */ struct hyperv_reftsc { volatile uint32_t tsc_seq; volatile uint32_t tsc_rsvd1; volatile uint64_t tsc_scale; volatile int64_t tsc_ofs; } __packed __aligned(PAGE_SIZE); #ifdef CTASSERT CTASSERT(sizeof(struct hyperv_reftsc) == PAGE_SIZE); #endif #ifdef _KERNEL struct hyperv_guid { uint8_t hv_guid[16]; } __packed; #define HYPERV_GUID_STRLEN 40 typedef uint64_t (*hyperv_tc64_t)(void); int hyperv_guid2str(const struct hyperv_guid *, char *, size_t); /* * hyperv_tc64 could be NULL, if there were no suitable Hyper-V * specific timecounter. */ extern hyperv_tc64_t hyperv_tc64; extern u_int hyperv_features; /* CPUID_HV_MSR_ */ extern u_int hyperv_ver_major; #endif /* _KERNEL */ #endif /* _HYPERV_H_ */ |