ace5ce7e70
Add VMBus protocol version 4.0. and 5.0 to support Windows 10 and newer HyperV hosts. For VMBus 4.0 and newer HyperV, the netvsc gpadl teardown must be done after vmbus close. Submitted by: whu MFC after: 2 weeks Sponsored by: Microsoft
105 lines
3.2 KiB
C
105 lines
3.2 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2009-2012,2016-2017 Microsoft Corp.
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* Copyright (c) 2012 NetApp Inc.
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* Copyright (c) 2012 Citrix Inc.
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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 unmodified, this list of conditions, and the following
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* 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 THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _HYPERV_H_
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#define _HYPERV_H_
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#ifdef _KERNEL
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#include <sys/param.h>
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#include <sys/systm.h>
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#define MSR_HV_TIME_REF_COUNT 0x40000020
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#define CPUID_HV_MSR_TIME_REFCNT 0x0002 /* MSR_HV_TIME_REF_COUNT */
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#define CPUID_HV_MSR_SYNIC 0x0004 /* MSRs for SynIC */
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#define CPUID_HV_MSR_SYNTIMER 0x0008 /* MSRs for SynTimer */
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#define CPUID_HV_MSR_APIC 0x0010 /* MSR_HV_{EOI,ICR,TPR} */
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#define CPUID_HV_MSR_HYPERCALL 0x0020 /* MSR_HV_GUEST_OS_ID
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* MSR_HV_HYPERCALL */
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#define CPUID_HV_MSR_VP_INDEX 0x0040 /* MSR_HV_VP_INDEX */
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#define CPUID_HV_MSR_REFERENCE_TSC 0x0200 /* MSR_HV_REFERENCE_TSC */
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#define CPUID_HV_MSR_GUEST_IDLE 0x0400 /* MSR_HV_GUEST_IDLE */
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#ifndef NANOSEC
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#define NANOSEC 1000000000ULL
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#endif
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#define HYPERV_TIMER_NS_FACTOR 100ULL
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#define HYPERV_TIMER_FREQ (NANOSEC / HYPERV_TIMER_NS_FACTOR)
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#endif /* _KERNEL */
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#define HYPERV_REFTSC_DEVNAME "hv_tsc"
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/*
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* Hyper-V Reference TSC
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*/
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struct hyperv_reftsc {
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volatile uint32_t tsc_seq;
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volatile uint32_t tsc_rsvd1;
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volatile uint64_t tsc_scale;
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volatile int64_t tsc_ofs;
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} __packed __aligned(PAGE_SIZE);
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#ifdef CTASSERT
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CTASSERT(sizeof(struct hyperv_reftsc) == PAGE_SIZE);
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#endif
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#ifdef _KERNEL
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struct hyperv_guid {
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uint8_t hv_guid[16];
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} __packed;
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#define HYPERV_GUID_STRLEN 40
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typedef uint64_t (*hyperv_tc64_t)(void);
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int hyperv_guid2str(const struct hyperv_guid *, char *,
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size_t);
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/*
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* hyperv_tc64 could be NULL, if there were no suitable Hyper-V
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* specific timecounter.
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*/
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extern hyperv_tc64_t hyperv_tc64;
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extern u_int hyperv_features; /* CPUID_HV_MSR_ */
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extern u_int hyperv_ver_major;
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/*
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* Vmbus version after negotiation with host.
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*/
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extern uint32_t vmbus_current_version;
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#endif /* _KERNEL */
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#endif /* _HYPERV_H_ */
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