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  */
  82 struct 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  */
  93 struct 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  */
 102 struct 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
 110 struct hyperv_message {
 111     struct hyperv_message_header header;
 112     uint8_t payload[HV_MESSAGE_PAYLOAD_SIZE];
 113 };
 114
 115 struct hyperv_message_page {
 116     struct hyperv_message slot[HV_SINT_COUNT];
 117 };
 118
 119 /*
 120  * SynIC event flags structures
 121  */
 122 struct hyperv_event_flags {
 123     DECLARE_BITMAP(flags, HV_EVENT_FLAGS_COUNT);
 124 };
 125
 126 struct hyperv_event_flags_page {
 127     struct hyperv_event_flags slot[HV_SINT_COUNT];
 128 };
 129
 130 #endif