qemu/include/hw/hyperv/hyperv-proto.h
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   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#define HV_STATUS_NOT_ACKNOWLEDGED            20
  28#define HV_STATUS_NO_DATA                     27
  29
  30/*
  31 * Hypercall numbers
  32 */
  33#define HV_POST_MESSAGE                       0x005c
  34#define HV_SIGNAL_EVENT                       0x005d
  35#define HV_POST_DEBUG_DATA                    0x0069
  36#define HV_RETRIEVE_DEBUG_DATA                0x006a
  37#define HV_RESET_DEBUG_SESSION                0x006b
  38#define HV_HYPERCALL_FAST                     (1u << 16)
  39
  40/*
  41 * Message size
  42 */
  43#define HV_MESSAGE_PAYLOAD_SIZE               240
  44
  45/*
  46 * Message types
  47 */
  48#define HV_MESSAGE_NONE                       0x00000000
  49#define HV_MESSAGE_VMBUS                      0x00000001
  50#define HV_MESSAGE_UNMAPPED_GPA               0x80000000
  51#define HV_MESSAGE_GPA_INTERCEPT              0x80000001
  52#define HV_MESSAGE_TIMER_EXPIRED              0x80000010
  53#define HV_MESSAGE_INVALID_VP_REGISTER_VALUE  0x80000020
  54#define HV_MESSAGE_UNRECOVERABLE_EXCEPTION    0x80000021
  55#define HV_MESSAGE_UNSUPPORTED_FEATURE        0x80000022
  56#define HV_MESSAGE_EVENTLOG_BUFFERCOMPLETE    0x80000040
  57#define HV_MESSAGE_X64_IOPORT_INTERCEPT       0x80010000
  58#define HV_MESSAGE_X64_MSR_INTERCEPT          0x80010001
  59#define HV_MESSAGE_X64_CPUID_INTERCEPT        0x80010002
  60#define HV_MESSAGE_X64_EXCEPTION_INTERCEPT    0x80010003
  61#define HV_MESSAGE_X64_APIC_EOI               0x80010004
  62#define HV_MESSAGE_X64_LEGACY_FP_ERROR        0x80010005
  63
  64/*
  65 * Message flags
  66 */
  67#define HV_MESSAGE_FLAG_PENDING               0x1
  68
  69/*
  70 * Number of synthetic interrupts
  71 */
  72#define HV_SINT_COUNT                         16
  73
  74/*
  75 * Event flags number per SINT
  76 */
  77#define HV_EVENT_FLAGS_COUNT                  (256 * 8)
  78
  79/*
  80 * Connection id valid bits
  81 */
  82#define HV_CONNECTION_ID_MASK                 0x00ffffff
  83
  84/*
  85 * Input structure for POST_MESSAGE hypercall
  86 */
  87struct hyperv_post_message_input {
  88    uint32_t connection_id;
  89    uint32_t _reserved;
  90    uint32_t message_type;
  91    uint32_t payload_size;
  92    uint8_t  payload[HV_MESSAGE_PAYLOAD_SIZE];
  93};
  94
  95/*
  96 * Input structure for SIGNAL_EVENT hypercall
  97 */
  98struct hyperv_signal_event_input {
  99    uint32_t connection_id;
 100    uint16_t flag_number;
 101    uint16_t _reserved_zero;
 102};
 103
 104/*
 105 * SynIC message structures
 106 */
 107struct hyperv_message_header {
 108    uint32_t message_type;
 109    uint8_t  payload_size;
 110    uint8_t  message_flags; /* HV_MESSAGE_FLAG_XX */
 111    uint8_t  _reserved[2];
 112    uint64_t sender;
 113};
 114
 115struct hyperv_message {
 116    struct hyperv_message_header header;
 117    uint8_t payload[HV_MESSAGE_PAYLOAD_SIZE];
 118};
 119
 120struct hyperv_message_page {
 121    struct hyperv_message slot[HV_SINT_COUNT];
 122};
 123
 124/*
 125 * SynIC event flags structures
 126 */
 127struct hyperv_event_flags {
 128    DECLARE_BITMAP(flags, HV_EVENT_FLAGS_COUNT);
 129};
 130
 131struct hyperv_event_flags_page {
 132    struct hyperv_event_flags slot[HV_SINT_COUNT];
 133};
 134
 135/*
 136 * Kernel debugger structures
 137 */
 138
 139/* Options flags for hyperv_reset_debug_session */
 140#define HV_DEBUG_PURGE_INCOMING_DATA        0x00000001
 141#define HV_DEBUG_PURGE_OUTGOING_DATA        0x00000002
 142struct hyperv_reset_debug_session_input {
 143    uint32_t options;
 144} __attribute__ ((__packed__));
 145
 146struct hyperv_reset_debug_session_output {
 147    uint32_t host_ip;
 148    uint32_t target_ip;
 149    uint16_t host_port;
 150    uint16_t target_port;
 151    uint8_t host_mac[6];
 152    uint8_t target_mac[6];
 153} __attribute__ ((__packed__));
 154
 155/* Options for hyperv_post_debug_data */
 156#define HV_DEBUG_POST_LOOP                  0x00000001
 157
 158struct hyperv_post_debug_data_input {
 159    uint32_t count;
 160    uint32_t options;
 161    /*uint8_t data[HV_HYP_PAGE_SIZE - 2 * sizeof(uint32_t)];*/
 162} __attribute__ ((__packed__));
 163
 164struct hyperv_post_debug_data_output {
 165    uint32_t pending_count;
 166} __attribute__ ((__packed__));
 167
 168/* Options for hyperv_retrieve_debug_data */
 169#define HV_DEBUG_RETRIEVE_LOOP              0x00000001
 170#define HV_DEBUG_RETRIEVE_TEST_ACTIVITY     0x00000002
 171
 172struct hyperv_retrieve_debug_data_input {
 173    uint32_t count;
 174    uint32_t options;
 175    uint64_t timeout;
 176} __attribute__ ((__packed__));
 177
 178struct hyperv_retrieve_debug_data_output {
 179    uint32_t retrieved_count;
 180    uint32_t remaining_count;
 181} __attribute__ ((__packed__));
 182#endif
 183