LXR qemu/include/hw/hyperv/hyperv-proto.h

   1/*
   2 * Definitions for Hyper-V guest/hypervisor interaction
   3 *
   4 * Copyright (c) 2017-2018 Virtuozzo International GmbH.
   5 *
   6 * This work is licensed under the terms of the GNU GPL, version 2 or later.
   7 * See the COPYING file in the top-level directory.
   8 */
   9
  10#ifndef HW_HYPERV_HYPERV_PROTO_H
  11#define HW_HYPERV_HYPERV_PROTO_H
  12
  13#include "qemu/bitmap.h"
  14
  15/*
  16 * Hypercall status code
  17 */
  18#define HV_STATUS_SUCCESS                     0
  19#define HV_STATUS_INVALID_HYPERCALL_CODE      2
  20#define HV_STATUS_INVALID_HYPERCALL_INPUT     3
  21#define HV_STATUS_INVALID_ALIGNMENT           4
  22#define HV_STATUS_INVALID_PARAMETER           5
  23#define HV_STATUS_INSUFFICIENT_MEMORY         11
  24#define HV_STATUS_INVALID_PORT_ID             17
  25#define HV_STATUS_INVALID_CONNECTION_ID       18
  26#define HV_STATUS_INSUFFICIENT_BUFFERS        19
  27
  28/*
  29 * Hypercall numbers
  30 */
  31#define HV_POST_MESSAGE                       0x005c
  32#define HV_SIGNAL_EVENT                       0x005d
  33#define HV_HYPERCALL_FAST                     (1u << 16)
  34
  35/*
  36 * Message size
  37 */
  38#define HV_MESSAGE_PAYLOAD_SIZE               240
  39
  40/*
  41 * Message types
  42 */
  43#define HV_MESSAGE_NONE                       0x00000000
  44#define HV_MESSAGE_VMBUS                      0x00000001
  45#define HV_MESSAGE_UNMAPPED_GPA               0x80000000
  46#define HV_MESSAGE_GPA_INTERCEPT              0x80000001
  47#define HV_MESSAGE_TIMER_EXPIRED              0x80000010
  48#define HV_MESSAGE_INVALID_VP_REGISTER_VALUE  0x80000020
  49#define HV_MESSAGE_UNRECOVERABLE_EXCEPTION    0x80000021
  50#define HV_MESSAGE_UNSUPPORTED_FEATURE        0x80000022
  51#define HV_MESSAGE_EVENTLOG_BUFFERCOMPLETE    0x80000040
  52#define HV_MESSAGE_X64_IOPORT_INTERCEPT       0x80010000
  53#define HV_MESSAGE_X64_MSR_INTERCEPT          0x80010001
  54#define HV_MESSAGE_X64_CPUID_INTERCEPT        0x80010002
  55#define HV_MESSAGE_X64_EXCEPTION_INTERCEPT    0x80010003
  56#define HV_MESSAGE_X64_APIC_EOI               0x80010004
  57#define HV_MESSAGE_X64_LEGACY_FP_ERROR        0x80010005
  58
  59/*
  60 * Message flags
  61 */
  62#define HV_MESSAGE_FLAG_PENDING               0x1
  63
  64/*
  65 * Number of synthetic interrupts
  66 */
  67#define HV_SINT_COUNT                         16
  68
  69/*
  70 * Event flags number per SINT
  71 */
  72#define HV_EVENT_FLAGS_COUNT                  (256 * 8)
  73
  74/*
  75 * Connection id valid bits
  76 */
  77#define HV_CONNECTION_ID_MASK                 0x00ffffff
  78
  79/*
  80 * Input structure for POST_MESSAGE hypercall
  81 */
  82struct hyperv_post_message_input {
  83    uint32_t connection_id;
  84    uint32_t _reserved;
  85    uint32_t message_type;
  86    uint32_t payload_size;
  87    uint8_t  payload[HV_MESSAGE_PAYLOAD_SIZE];
  88};
  89
  90/*
  91 * Input structure for SIGNAL_EVENT hypercall
  92 */
  93struct hyperv_signal_event_input {
  94    uint32_t connection_id;
  95    uint16_t flag_number;
  96    uint16_t _reserved_zero;
  97};
  98
  99/*
 100 * SynIC message structures
 101 */
 102struct hyperv_message_header {
 103    uint32_t message_type;
 104    uint8_t  payload_size;
 105    uint8_t  message_flags; /* HV_MESSAGE_FLAG_XX */
 106    uint8_t  _reserved[2];
 107    uint64_t sender;
 108};
 109
 110struct hyperv_message {
 111    struct hyperv_message_header header;
 112    uint8_t payload[HV_MESSAGE_PAYLOAD_SIZE];
 113};
 114
 115struct hyperv_message_page {
 116    struct hyperv_message slot[HV_SINT_COUNT];
 117};
 118
 119/*
 120 * SynIC event flags structures
 121 */
 122struct hyperv_event_flags {
 123    DECLARE_BITMAP(flags, HV_EVENT_FLAGS_COUNT);
 124};
 125
 126struct hyperv_event_flags_page {
 127    struct hyperv_event_flags slot[HV_SINT_COUNT];
 128};
 129
 130#endif
 131