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1 /*
2 * QEMU Hyper-V VMBus support
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_VMBUS_PROTO_H
11 #define HW_HYPERV_VMBUS_PROTO_H
12
13 #define VMBUS_VERSION_WS2008 ((0 << 16) | (13))
14 #define VMBUS_VERSION_WIN7 ((1 << 16) | (1))
15 #define VMBUS_VERSION_WIN8 ((2 << 16) | (4))
16 #define VMBUS_VERSION_WIN8_1 ((3 << 16) | (0))
17 #define VMBUS_VERSION_WIN10 ((4 << 16) | (0))
18 #define VMBUS_VERSION_INVAL -1
19 #define VMBUS_VERSION_CURRENT VMBUS_VERSION_WIN10
20
21 #define VMBUS_MESSAGE_CONNECTION_ID 1
22 #define VMBUS_EVENT_CONNECTION_ID 2
23 #define VMBUS_MONITOR_CONNECTION_ID 3
24 #define VMBUS_SINT 2
25
26 #define VMBUS_MSG_INVALID 0
27 #define VMBUS_MSG_OFFERCHANNEL 1
28 #define VMBUS_MSG_RESCIND_CHANNELOFFER 2
29 #define VMBUS_MSG_REQUESTOFFERS 3
30 #define VMBUS_MSG_ALLOFFERS_DELIVERED 4
31 #define VMBUS_MSG_OPENCHANNEL 5
32 #define VMBUS_MSG_OPENCHANNEL_RESULT 6
33 #define VMBUS_MSG_CLOSECHANNEL 7
34 #define VMBUS_MSG_GPADL_HEADER 8
35 #define VMBUS_MSG_GPADL_BODY 9
36 #define VMBUS_MSG_GPADL_CREATED 10
37 #define VMBUS_MSG_GPADL_TEARDOWN 11
38 #define VMBUS_MSG_GPADL_TORNDOWN 12
39 #define VMBUS_MSG_RELID_RELEASED 13
40 #define VMBUS_MSG_INITIATE_CONTACT 14
41 #define VMBUS_MSG_VERSION_RESPONSE 15
42 #define VMBUS_MSG_UNLOAD 16
43 #define VMBUS_MSG_UNLOAD_RESPONSE 17
44 #define VMBUS_MSG_COUNT 18
45
46 #define VMBUS_MESSAGE_SIZE_ALIGN sizeof(uint64_t)
47
48 #define VMBUS_PACKET_INVALID 0x0
49 #define VMBUS_PACKET_SYNCH 0x1
50 #define VMBUS_PACKET_ADD_XFER_PAGESET 0x2
51 #define VMBUS_PACKET_RM_XFER_PAGESET 0x3
52 #define VMBUS_PACKET_ESTABLISH_GPADL 0x4
53 #define VMBUS_PACKET_TEARDOWN_GPADL 0x5
54 #define VMBUS_PACKET_DATA_INBAND 0x6
55 #define VMBUS_PACKET_DATA_USING_XFER_PAGES 0x7
56 #define VMBUS_PACKET_DATA_USING_GPADL 0x8
57 #define VMBUS_PACKET_DATA_USING_GPA_DIRECT 0x9
58 #define VMBUS_PACKET_CANCEL_REQUEST 0xa
59 #define VMBUS_PACKET_COMP 0xb
60 #define VMBUS_PACKET_DATA_USING_ADDITIONAL_PKT 0xc
61 #define VMBUS_PACKET_ADDITIONAL_DATA 0xd
62
63 #define VMBUS_CHANNEL_USER_DATA_SIZE 120
64
65 #define VMBUS_OFFER_MONITOR_ALLOCATED 0x1
66 #define VMBUS_OFFER_INTERRUPT_DEDICATED 0x1
67
68 #define VMBUS_RING_BUFFER_FEAT_PENDING_SZ (1ul << 0)
69
70 #define VMBUS_CHANNEL_ENUMERATE_DEVICE_INTERFACE 0x1
71 #define VMBUS_CHANNEL_SERVER_SUPPORTS_TRANSFER_PAGES 0x2
72 #define VMBUS_CHANNEL_SERVER_SUPPORTS_GPADLS 0x4
73 #define VMBUS_CHANNEL_NAMED_PIPE_MODE 0x10
74 #define VMBUS_CHANNEL_LOOPBACK_OFFER 0x100
75 #define VMBUS_CHANNEL_PARENT_OFFER 0x200
76 #define VMBUS_CHANNEL_REQUEST_MONITORED_NOTIFICATION 0x400
77 #define VMBUS_CHANNEL_TLNPI_PROVIDER_OFFER 0x2000
78
79 #define VMBUS_PACKET_FLAG_REQUEST_COMPLETION 1
80
81 typedef struct vmbus_message_header {
82 uint32_t message_type;
83 uint32_t _padding;
84 } vmbus_message_header;
85
86 typedef struct vmbus_message_initiate_contact {
87 vmbus_message_header header;
88 uint32_t version_requested;
89 uint32_t target_vcpu;
90 uint64_t interrupt_page;
91 uint64_t monitor_page1;
92 uint64_t monitor_page2;
93 } vmbus_message_initiate_contact;
94
95 typedef struct vmbus_message_version_response {
96 vmbus_message_header header;
97 uint8_t version_supported;
98 uint8_t status;
99 } vmbus_message_version_response;
100
101 typedef struct vmbus_message_offer_channel {
102 vmbus_message_header header;
103 uint8_t type_uuid[16];
104 uint8_t instance_uuid[16];
105 uint64_t _reserved1;
106 uint64_t _reserved2;
107 uint16_t channel_flags;
108 uint16_t mmio_size_mb;
109 uint8_t user_data[VMBUS_CHANNEL_USER_DATA_SIZE];
110 uint16_t sub_channel_index;
111 uint16_t _reserved3;
112 uint32_t child_relid;
113 uint8_t monitor_id;
114 uint8_t monitor_flags;
115 uint16_t interrupt_flags;
116 uint32_t connection_id;
117 } vmbus_message_offer_channel;
118
119 typedef struct vmbus_message_rescind_channel_offer {
120 vmbus_message_header header;
121 uint32_t child_relid;
122 } vmbus_message_rescind_channel_offer;
123
124 typedef struct vmbus_gpa_range {
125 uint32_t byte_count;
126 uint32_t byte_offset;
127 uint64_t pfn_array[];
128 } vmbus_gpa_range;
129
130 typedef struct vmbus_message_gpadl_header {
131 vmbus_message_header header;
132 uint32_t child_relid;
133 uint32_t gpadl_id;
134 uint16_t range_buflen;
135 uint16_t rangecount;
136 vmbus_gpa_range range[];
137 } QEMU_PACKED vmbus_message_gpadl_header;
138
139 typedef struct vmbus_message_gpadl_body {
140 vmbus_message_header header;
141 uint32_t message_number;
142 uint32_t gpadl_id;
143 uint64_t pfn_array[];
144 } vmbus_message_gpadl_body;
145
146 typedef struct vmbus_message_gpadl_created {
147 vmbus_message_header header;
148 uint32_t child_relid;
149 uint32_t gpadl_id;
150 uint32_t status;
151 } vmbus_message_gpadl_created;
152
153 typedef struct vmbus_message_gpadl_teardown {
154 vmbus_message_header header;
155 uint32_t child_relid;
156 uint32_t gpadl_id;
157 } vmbus_message_gpadl_teardown;
158
159 typedef struct vmbus_message_gpadl_torndown {
160 vmbus_message_header header;
161 uint32_t gpadl_id;
162 } vmbus_message_gpadl_torndown;
163
164 typedef struct vmbus_message_open_channel {
165 vmbus_message_header header;
166 uint32_t child_relid;
167 uint32_t open_id;
168 uint32_t ring_buffer_gpadl_id;
169 uint32_t target_vp;
170 uint32_t ring_buffer_offset;
171 uint8_t user_data[VMBUS_CHANNEL_USER_DATA_SIZE];
172 } vmbus_message_open_channel;
173
174 typedef struct vmbus_message_open_result {
175 vmbus_message_header header;
176 uint32_t child_relid;
177 uint32_t open_id;
178 uint32_t status;
179 } vmbus_message_open_result;
180
181 typedef struct vmbus_message_close_channel {
182 vmbus_message_header header;
183 uint32_t child_relid;
184 } vmbus_message_close_channel;
185
186 typedef struct vmbus_ring_buffer {
187 uint32_t write_index;
188 uint32_t read_index;
189 uint32_t interrupt_mask;
190 uint32_t pending_send_sz;
191 uint32_t _reserved1[12];
192 uint32_t feature_bits;
193 } vmbus_ring_buffer;
194
195 typedef struct vmbus_packet_hdr {
196 uint16_t type;
197 uint16_t offset_qwords;
198 uint16_t len_qwords;
199 uint16_t flags;
200 uint64_t transaction_id;
201 } vmbus_packet_hdr;
202
203 typedef struct vmbus_pkt_gpa_direct {
204 uint32_t _reserved;
205 uint32_t rangecount;
206 vmbus_gpa_range range[];
207 } vmbus_pkt_gpa_direct;
208
209 typedef struct vmbus_xferpg_range {
210 uint32_t byte_count;
211 uint32_t byte_offset;
212 } vmbus_xferpg_range;
213
214 typedef struct vmbus_pkt_xferpg {
215 uint16_t buffer_id;
216 uint8_t sender_owns_set;
217 uint8_t _reserved;
218 uint32_t rangecount;
219 vmbus_xferpg_range range[];
220 } vmbus_pkt_xferpg;
221
222 #endif