jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
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