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/* $OpenBSD: pvreg.h,v 1.6 2019/05/13 15:40:34 pd Exp $ */
/*
* Copyright (c) 2015 Reyk Floeter <reyk@openbsd.org>
* Copyright (c) 2015 Stefan Fritsch <sf@sfritsch.de>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _DEV_PV_PVBUS_H_
#define _DEV_PV_PVBUS_H_
#define CPUID_HV_SIGNATURE_START 0x40000000
#define CPUID_HV_SIGNATURE_END 0x40010000
#define CPUID_HV_SIGNATURE_STEP 0x100
#define CPUID_HV_SIGNATURE_STRLEN 12
/*
* KVM
*/
#define CPUID_OFFSET_KVM_FEATURES 0x1
#define KVM_FEATURE_CLOCKSOURCE 0 /* deprecated */
#define KVM_FEATURE_NOP_IO_DELAY 1
#define KVM_FEATURE_MMU_OP 2 /* deprecated */
#define KVM_FEATURE_CLOCKSOURCE2 3
#define KVM_FEATURE_ASYNC_PF 4
#define KVM_FEATURE_STEAL_TIME 5
#define KVM_FEATURE_PV_EOI 6
#define KVM_FEATURE_PV_UNHALT 7
#define KVM_FEATURE_CLOCKSOURCE_STABLE_BIT 24
#define KVM_MSR_EOI_EN 0x4b564d04
#define KVM_PV_EOI_BIT 0
#define KVM_MSR_WALL_CLOCK 0x4b564d00
#define KVM_MSR_SYSTEM_TIME 0x4b564d01
struct pvclock_wall_clock {
uint32_t wc_version;
uint32_t wc_sec;
uint32_t wc_nsec;
} __packed;
struct pvclock_time_info {
uint32_t ti_version;
uint32_t ti_pad0;
uint64_t ti_tsc_timestamp;
uint64_t ti_system_time;
uint32_t ti_tsc_to_system_mul;
int8_t ti_tsc_shift;
uint8_t ti_flags;
uint8_t ti_pad[2];
} __packed;
#define PVCLOCK_FLAG_TSC_STABLE 0x01
#define PVCLOCK_SYSTEM_TIME_ENABLE 0x01
/*
* Hyper-V
*/
#define CPUID_OFFSET_HYPERV_INTERFACE 0x1
#define CPUID_OFFSET_HYPERV_VERSION 0x2
#define CPUID_OFFSET_HYPERV_FEATURES 0x3
#define CPUID_OFFSET_HYPERV_ENLIGHTENMENT_INFO 0x4
#define CPUID_OFFSET_HYPERV_IMPL_LIMITS 0x5
#define HYPERV_VERSION_EAX_BUILD_NUMBER 0
#define HYPERV_VERSION_EBX_MAJOR_M 0xffff0000
#define HYPERV_VERSION_EBX_MAJOR_S 16
#define HYPERV_VERSION_EBX_MINOR_M 0x0000ffff
#define HYPERV_VERSION_EBX_MINOR_S 0
#define HYPERV_VERSION_ECX_SERVICE_PACK 0
#define HYPERV_VERSION_EDX_SERVICE_BRANCH_M 0xff000000
#define HYPERV_VERSION_EDX_SERVICE_BRANCH_S 24
#define HYPERV_VERSION_EDX_SERVICE_NUMBER_M 0x00ffffff
#define HYPERV_VERSION_EDX_SERVICE_NUMBER_S 0
#define HYPERV_VERSION_WS2008 0x00060000
#define HYPERV_VERSION_WIN7 0x00060001
#define HYPERV_VERSION_WIN8 0x00060002
#define HYPERV_VERSION_WIN8_1 0x00060003
#define HYPERV_VERSION_WIN10 0x00100000
#define HYPERV_FEATURE_EAX_VP_RUNTIME 0
#define HYPERV_FEATURE_EAX_TIME_REF_COUNT 1
#define HYPERV_FEATURE_EAX_SYNIC 2
#define HYPERV_FEATURE_EAX_STIMER 3
#define HYPERV_FEATURE_EAX_APIC 4
#define HYPERV_FEATURE_EAX_HYPERCALL 5
#define HYPERV_FEATURE_EAX_VP_INDEX 6
#define HYPERV_FEATURE_EAX_MSR_RESET 7
#define HYPERV_FEATURE_EAX_STATS_PAGES 8
#define HYPERV_FEATURE_EAX_REF_TSC 9
#define HYPERV_FEATURE_EAX_GUEST_IDLE 10
#define HYPERV_FEATURE_EAX_TIMER_FREQ 11
#define HYPERV_FEATURE_EAX_DEBUG 12
/*
* Xen
*/
#define CPUID_OFFSET_XEN_VERSION 0x1
#define CPUID_OFFSET_XEN_HYPERCALL 0x2
#define XEN_VERSION_MAJOR_S 16
#define XEN_VERSION_MINOR_M 0xffff
#endif /* _DEV_PV_PVBUS_H_ */
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