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5c473400 S |
1 | /* |
2 | * | |
3 | * Copyright (c) 2011, Microsoft Corporation. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms and conditions of the GNU General Public License, | |
7 | * version 2, as published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope it will be useful, but WITHOUT | |
10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
12 | * more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License along with | |
15 | * this program; if not, write to the Free Software Foundation, Inc., 59 Temple | |
16 | * Place - Suite 330, Boston, MA 02111-1307 USA. | |
17 | * | |
18 | * Authors: | |
19 | * Haiyang Zhang <haiyangz@microsoft.com> | |
20 | * Hank Janssen <hjanssen@microsoft.com> | |
21 | * K. Y. Srinivasan <kys@microsoft.com> | |
22 | * | |
23 | */ | |
3f335ea2 S |
24 | |
25 | #ifndef _HYPERV_H | |
26 | #define _HYPERV_H | |
27 | ||
2939437c S |
28 | #include <linux/types.h> |
29 | ||
30 | /* | |
31 | * An implementation of HyperV key value pair (KVP) functionality for Linux. | |
32 | * | |
33 | * | |
34 | * Copyright (C) 2010, Novell, Inc. | |
35 | * Author : K. Y. Srinivasan <ksrinivasan@novell.com> | |
36 | * | |
37 | */ | |
38 | ||
39 | /* | |
40 | * Maximum value size - used for both key names and value data, and includes | |
41 | * any applicable NULL terminators. | |
42 | * | |
43 | * Note: This limit is somewhat arbitrary, but falls easily within what is | |
44 | * supported for all native guests (back to Win 2000) and what is reasonable | |
45 | * for the IC KVP exchange functionality. Note that Windows Me/98/95 are | |
46 | * limited to 255 character key names. | |
47 | * | |
48 | * MSDN recommends not storing data values larger than 2048 bytes in the | |
49 | * registry. | |
50 | * | |
51 | * Note: This value is used in defining the KVP exchange message - this value | |
52 | * cannot be modified without affecting the message size and compatibility. | |
53 | */ | |
54 | ||
55 | /* | |
56 | * bytes, including any null terminators | |
57 | */ | |
58 | #define HV_KVP_EXCHANGE_MAX_VALUE_SIZE (2048) | |
59 | ||
60 | ||
61 | /* | |
62 | * Maximum key size - the registry limit for the length of an entry name | |
63 | * is 256 characters, including the null terminator | |
64 | */ | |
65 | ||
66 | #define HV_KVP_EXCHANGE_MAX_KEY_SIZE (512) | |
67 | ||
68 | /* | |
69 | * In Linux, we implement the KVP functionality in two components: | |
70 | * 1) The kernel component which is packaged as part of the hv_utils driver | |
71 | * is responsible for communicating with the host and responsible for | |
72 | * implementing the host/guest protocol. 2) A user level daemon that is | |
73 | * responsible for data gathering. | |
74 | * | |
75 | * Host/Guest Protocol: The host iterates over an index and expects the guest | |
76 | * to assign a key name to the index and also return the value corresponding to | |
77 | * the key. The host will have atmost one KVP transaction outstanding at any | |
78 | * given point in time. The host side iteration stops when the guest returns | |
79 | * an error. Microsoft has specified the following mapping of key names to | |
80 | * host specified index: | |
81 | * | |
82 | * Index Key Name | |
83 | * 0 FullyQualifiedDomainName | |
84 | * 1 IntegrationServicesVersion | |
85 | * 2 NetworkAddressIPv4 | |
86 | * 3 NetworkAddressIPv6 | |
87 | * 4 OSBuildNumber | |
88 | * 5 OSName | |
89 | * 6 OSMajorVersion | |
90 | * 7 OSMinorVersion | |
91 | * 8 OSVersion | |
92 | * 9 ProcessorArchitecture | |
93 | * | |
94 | * The Windows host expects the Key Name and Key Value to be encoded in utf16. | |
95 | * | |
96 | * Guest Kernel/KVP Daemon Protocol: As noted earlier, we implement all of the | |
97 | * data gathering functionality in a user mode daemon. The user level daemon | |
98 | * is also responsible for binding the key name to the index as well. The | |
99 | * kernel and user-level daemon communicate using a connector channel. | |
100 | * | |
101 | * The user mode component first registers with the | |
102 | * the kernel component. Subsequently, the kernel component requests, data | |
103 | * for the specified keys. In response to this message the user mode component | |
104 | * fills in the value corresponding to the specified key. We overload the | |
105 | * sequence field in the cn_msg header to define our KVP message types. | |
106 | * | |
107 | * | |
108 | * The kernel component simply acts as a conduit for communication between the | |
109 | * Windows host and the user-level daemon. The kernel component passes up the | |
110 | * index received from the Host to the user-level daemon. If the index is | |
111 | * valid (supported), the corresponding key as well as its | |
112 | * value (both are strings) is returned. If the index is invalid | |
113 | * (not supported), a NULL key string is returned. | |
114 | */ | |
115 | ||
2939437c S |
116 | |
117 | /* | |
118 | * Registry value types. | |
119 | */ | |
120 | ||
121 | #define REG_SZ 1 | |
fa3d5b85 S |
122 | #define REG_U32 4 |
123 | #define REG_U64 8 | |
2939437c | 124 | |
9b595780 S |
125 | /* |
126 | * As we look at expanding the KVP functionality to include | |
127 | * IP injection functionality, we need to maintain binary | |
128 | * compatibility with older daemons. | |
129 | * | |
130 | * The KVP opcodes are defined by the host and it was unfortunate | |
131 | * that I chose to treat the registration operation as part of the | |
132 | * KVP operations defined by the host. | |
133 | * Here is the level of compatibility | |
134 | * (between the user level daemon and the kernel KVP driver) that we | |
135 | * will implement: | |
136 | * | |
137 | * An older daemon will always be supported on a newer driver. | |
138 | * A given user level daemon will require a minimal version of the | |
139 | * kernel driver. | |
140 | * If we cannot handle the version differences, we will fail gracefully | |
141 | * (this can happen when we have a user level daemon that is more | |
142 | * advanced than the KVP driver. | |
143 | * | |
144 | * We will use values used in this handshake for determining if we have | |
145 | * workable user level daemon and the kernel driver. We begin by taking the | |
146 | * registration opcode out of the KVP opcode namespace. We will however, | |
147 | * maintain compatibility with the existing user-level daemon code. | |
148 | */ | |
149 | ||
150 | /* | |
151 | * Daemon code not supporting IP injection (legacy daemon). | |
152 | */ | |
153 | ||
154 | #define KVP_OP_REGISTER 4 | |
155 | ||
156 | /* | |
157 | * Daemon code supporting IP injection. | |
158 | * The KVP opcode field is used to communicate the | |
159 | * registration information; so define a namespace that | |
160 | * will be distinct from the host defined KVP opcode. | |
161 | */ | |
162 | ||
163 | #define KVP_OP_REGISTER1 100 | |
164 | ||
2939437c S |
165 | enum hv_kvp_exchg_op { |
166 | KVP_OP_GET = 0, | |
167 | KVP_OP_SET, | |
168 | KVP_OP_DELETE, | |
169 | KVP_OP_ENUMERATE, | |
9b595780 S |
170 | KVP_OP_GET_IP_INFO, |
171 | KVP_OP_SET_IP_INFO, | |
2939437c S |
172 | KVP_OP_COUNT /* Number of operations, must be last. */ |
173 | }; | |
174 | ||
175 | enum hv_kvp_exchg_pool { | |
176 | KVP_POOL_EXTERNAL = 0, | |
177 | KVP_POOL_GUEST, | |
178 | KVP_POOL_AUTO, | |
179 | KVP_POOL_AUTO_EXTERNAL, | |
180 | KVP_POOL_AUTO_INTERNAL, | |
181 | KVP_POOL_COUNT /* Number of pools, must be last. */ | |
182 | }; | |
183 | ||
b47a81dc S |
184 | /* |
185 | * Some Hyper-V status codes. | |
186 | */ | |
187 | ||
188 | #define HV_S_OK 0x00000000 | |
189 | #define HV_E_FAIL 0x80004005 | |
190 | #define HV_S_CONT 0x80070103 | |
191 | #define HV_ERROR_NOT_SUPPORTED 0x80070032 | |
192 | #define HV_ERROR_MACHINE_LOCKED 0x800704F7 | |
193 | #define HV_ERROR_DEVICE_NOT_CONNECTED 0x8007048F | |
194 | ||
9b595780 S |
195 | #define ADDR_FAMILY_NONE 0x00 |
196 | #define ADDR_FAMILY_IPV4 0x01 | |
197 | #define ADDR_FAMILY_IPV6 0x02 | |
198 | ||
199 | #define MAX_ADAPTER_ID_SIZE 128 | |
200 | #define MAX_IP_ADDR_SIZE 1024 | |
201 | #define MAX_GATEWAY_SIZE 512 | |
202 | ||
203 | ||
204 | struct hv_kvp_ipaddr_value { | |
205 | __u16 adapter_id[MAX_ADAPTER_ID_SIZE]; | |
206 | __u8 addr_family; | |
207 | __u8 dhcp_enabled; | |
208 | __u16 ip_addr[MAX_IP_ADDR_SIZE]; | |
209 | __u16 sub_net[MAX_IP_ADDR_SIZE]; | |
210 | __u16 gate_way[MAX_GATEWAY_SIZE]; | |
211 | __u16 dns_addr[MAX_IP_ADDR_SIZE]; | |
212 | } __attribute__((packed)); | |
213 | ||
214 | ||
2939437c | 215 | struct hv_kvp_hdr { |
59a084a7 S |
216 | __u8 operation; |
217 | __u8 pool; | |
218 | __u16 pad; | |
219 | } __attribute__((packed)); | |
2939437c S |
220 | |
221 | struct hv_kvp_exchg_msg_value { | |
59a084a7 S |
222 | __u32 value_type; |
223 | __u32 key_size; | |
224 | __u32 value_size; | |
225 | __u8 key[HV_KVP_EXCHANGE_MAX_KEY_SIZE]; | |
e485ceac S |
226 | union { |
227 | __u8 value[HV_KVP_EXCHANGE_MAX_VALUE_SIZE]; | |
228 | __u32 value_u32; | |
229 | __u64 value_u64; | |
230 | }; | |
59a084a7 | 231 | } __attribute__((packed)); |
2939437c S |
232 | |
233 | struct hv_kvp_msg_enumerate { | |
59a084a7 | 234 | __u32 index; |
2939437c | 235 | struct hv_kvp_exchg_msg_value data; |
59a084a7 | 236 | } __attribute__((packed)); |
2939437c | 237 | |
e485ceac S |
238 | struct hv_kvp_msg_get { |
239 | struct hv_kvp_exchg_msg_value data; | |
240 | }; | |
241 | ||
242 | struct hv_kvp_msg_set { | |
243 | struct hv_kvp_exchg_msg_value data; | |
244 | }; | |
245 | ||
246 | struct hv_kvp_msg_delete { | |
247 | __u32 key_size; | |
248 | __u8 key[HV_KVP_EXCHANGE_MAX_KEY_SIZE]; | |
249 | }; | |
250 | ||
251 | struct hv_kvp_register { | |
252 | __u8 version[HV_KVP_EXCHANGE_MAX_KEY_SIZE]; | |
253 | }; | |
254 | ||
2939437c | 255 | struct hv_kvp_msg { |
9b595780 S |
256 | union { |
257 | struct hv_kvp_hdr kvp_hdr; | |
258 | int error; | |
259 | }; | |
26403354 | 260 | union { |
e485ceac S |
261 | struct hv_kvp_msg_get kvp_get; |
262 | struct hv_kvp_msg_set kvp_set; | |
263 | struct hv_kvp_msg_delete kvp_delete; | |
264 | struct hv_kvp_msg_enumerate kvp_enum_data; | |
9b595780 | 265 | struct hv_kvp_ipaddr_value kvp_ip_val; |
e485ceac | 266 | struct hv_kvp_register kvp_register; |
26403354 | 267 | } body; |
59a084a7 | 268 | } __attribute__((packed)); |
2939437c | 269 | |
9b595780 S |
270 | struct hv_kvp_ip_msg { |
271 | __u8 operation; | |
272 | __u8 pool; | |
273 | struct hv_kvp_ipaddr_value kvp_ip_val; | |
274 | } __attribute__((packed)); | |
275 | ||
59a084a7 | 276 | #ifdef __KERNEL__ |
8ff3e6fc S |
277 | #include <linux/scatterlist.h> |
278 | #include <linux/list.h> | |
358d2ee2 | 279 | #include <linux/uuid.h> |
8ff3e6fc S |
280 | #include <linux/timer.h> |
281 | #include <linux/workqueue.h> | |
282 | #include <linux/completion.h> | |
283 | #include <linux/device.h> | |
2e2c1d17 | 284 | #include <linux/mod_devicetable.h> |
8ff3e6fc S |
285 | |
286 | ||
c31c151b | 287 | #define MAX_PAGE_BUFFER_COUNT 19 |
a363bf7b S |
288 | #define MAX_MULTIPAGE_BUFFER_COUNT 32 /* 128K */ |
289 | ||
290 | #pragma pack(push, 1) | |
291 | ||
292 | /* Single-page buffer */ | |
293 | struct hv_page_buffer { | |
294 | u32 len; | |
295 | u32 offset; | |
296 | u64 pfn; | |
297 | }; | |
298 | ||
299 | /* Multiple-page buffer */ | |
300 | struct hv_multipage_buffer { | |
301 | /* Length and Offset determines the # of pfns in the array */ | |
302 | u32 len; | |
303 | u32 offset; | |
304 | u64 pfn_array[MAX_MULTIPAGE_BUFFER_COUNT]; | |
305 | }; | |
306 | ||
307 | /* 0x18 includes the proprietary packet header */ | |
308 | #define MAX_PAGE_BUFFER_PACKET (0x18 + \ | |
309 | (sizeof(struct hv_page_buffer) * \ | |
310 | MAX_PAGE_BUFFER_COUNT)) | |
311 | #define MAX_MULTIPAGE_BUFFER_PACKET (0x18 + \ | |
312 | sizeof(struct hv_multipage_buffer)) | |
313 | ||
314 | ||
315 | #pragma pack(pop) | |
316 | ||
7effffb7 S |
317 | struct hv_ring_buffer { |
318 | /* Offset in bytes from the start of ring data below */ | |
319 | u32 write_index; | |
320 | ||
321 | /* Offset in bytes from the start of ring data below */ | |
322 | u32 read_index; | |
323 | ||
324 | u32 interrupt_mask; | |
325 | ||
326 | /* Pad it to PAGE_SIZE so that data starts on page boundary */ | |
327 | u8 reserved[4084]; | |
328 | ||
329 | /* NOTE: | |
330 | * The interrupt_mask field is used only for channels but since our | |
331 | * vmbus connection also uses this data structure and its data starts | |
332 | * here, we commented out this field. | |
333 | */ | |
334 | ||
335 | /* | |
336 | * Ring data starts here + RingDataStartOffset | |
337 | * !!! DO NOT place any fields below this !!! | |
338 | */ | |
339 | u8 buffer[0]; | |
340 | } __packed; | |
341 | ||
342 | struct hv_ring_buffer_info { | |
343 | struct hv_ring_buffer *ring_buffer; | |
344 | u32 ring_size; /* Include the shared header */ | |
345 | spinlock_t ring_lock; | |
346 | ||
347 | u32 ring_datasize; /* < ring_size */ | |
348 | u32 ring_data_startoffset; | |
349 | }; | |
350 | ||
351 | struct hv_ring_buffer_debug_info { | |
352 | u32 current_interrupt_mask; | |
353 | u32 current_read_index; | |
354 | u32 current_write_index; | |
355 | u32 bytes_avail_toread; | |
356 | u32 bytes_avail_towrite; | |
357 | }; | |
3f335ea2 | 358 | |
33be96e4 HZ |
359 | |
360 | /* | |
361 | * | |
362 | * hv_get_ringbuffer_availbytes() | |
363 | * | |
364 | * Get number of bytes available to read and to write to | |
365 | * for the specified ring buffer | |
366 | */ | |
367 | static inline void | |
368 | hv_get_ringbuffer_availbytes(struct hv_ring_buffer_info *rbi, | |
369 | u32 *read, u32 *write) | |
370 | { | |
371 | u32 read_loc, write_loc, dsize; | |
372 | ||
373 | smp_read_barrier_depends(); | |
374 | ||
375 | /* Capture the read/write indices before they changed */ | |
376 | read_loc = rbi->ring_buffer->read_index; | |
377 | write_loc = rbi->ring_buffer->write_index; | |
378 | dsize = rbi->ring_datasize; | |
379 | ||
380 | *write = write_loc >= read_loc ? dsize - (write_loc - read_loc) : | |
381 | read_loc - write_loc; | |
382 | *read = dsize - *write; | |
383 | } | |
384 | ||
385 | ||
f7c6dfda S |
386 | /* |
387 | * We use the same version numbering for all Hyper-V modules. | |
388 | * | |
389 | * Definition of versioning is as follows; | |
390 | * | |
391 | * Major Number Changes for these scenarios; | |
392 | * 1. When a new version of Windows Hyper-V | |
393 | * is released. | |
394 | * 2. A Major change has occurred in the | |
395 | * Linux IC's. | |
396 | * (For example the merge for the first time | |
397 | * into the kernel) Every time the Major Number | |
398 | * changes, the Revision number is reset to 0. | |
399 | * Minor Number Changes when new functionality is added | |
400 | * to the Linux IC's that is not a bug fix. | |
401 | * | |
402 | * 3.1 - Added completed hv_utils driver. Shutdown/Heartbeat/Timesync | |
403 | */ | |
404 | #define HV_DRV_VERSION "3.1" | |
405 | ||
406 | ||
517d8dc6 S |
407 | /* |
408 | * A revision number of vmbus that is used for ensuring both ends on a | |
409 | * partition are using compatible versions. | |
410 | */ | |
411 | #define VMBUS_REVISION_NUMBER 13 | |
412 | ||
413 | /* Make maximum size of pipe payload of 16K */ | |
414 | #define MAX_PIPE_DATA_PAYLOAD (sizeof(u8) * 16384) | |
415 | ||
416 | /* Define PipeMode values. */ | |
417 | #define VMBUS_PIPE_TYPE_BYTE 0x00000000 | |
418 | #define VMBUS_PIPE_TYPE_MESSAGE 0x00000004 | |
419 | ||
420 | /* The size of the user defined data buffer for non-pipe offers. */ | |
421 | #define MAX_USER_DEFINED_BYTES 120 | |
422 | ||
423 | /* The size of the user defined data buffer for pipe offers. */ | |
424 | #define MAX_PIPE_USER_DEFINED_BYTES 116 | |
425 | ||
426 | /* | |
427 | * At the center of the Channel Management library is the Channel Offer. This | |
428 | * struct contains the fundamental information about an offer. | |
429 | */ | |
430 | struct vmbus_channel_offer { | |
358d2ee2 S |
431 | uuid_le if_type; |
432 | uuid_le if_instance; | |
517d8dc6 S |
433 | u64 int_latency; /* in 100ns units */ |
434 | u32 if_revision; | |
435 | u32 server_ctx_size; /* in bytes */ | |
436 | u16 chn_flags; | |
437 | u16 mmio_megabytes; /* in bytes * 1024 * 1024 */ | |
438 | ||
439 | union { | |
440 | /* Non-pipes: The user has MAX_USER_DEFINED_BYTES bytes. */ | |
441 | struct { | |
442 | unsigned char user_def[MAX_USER_DEFINED_BYTES]; | |
443 | } std; | |
444 | ||
445 | /* | |
446 | * Pipes: | |
447 | * The following sructure is an integrated pipe protocol, which | |
448 | * is implemented on top of standard user-defined data. Pipe | |
449 | * clients have MAX_PIPE_USER_DEFINED_BYTES left for their own | |
450 | * use. | |
451 | */ | |
452 | struct { | |
453 | u32 pipe_mode; | |
454 | unsigned char user_def[MAX_PIPE_USER_DEFINED_BYTES]; | |
455 | } pipe; | |
456 | } u; | |
457 | u32 padding; | |
458 | } __packed; | |
459 | ||
460 | /* Server Flags */ | |
461 | #define VMBUS_CHANNEL_ENUMERATE_DEVICE_INTERFACE 1 | |
462 | #define VMBUS_CHANNEL_SERVER_SUPPORTS_TRANSFER_PAGES 2 | |
463 | #define VMBUS_CHANNEL_SERVER_SUPPORTS_GPADLS 4 | |
464 | #define VMBUS_CHANNEL_NAMED_PIPE_MODE 0x10 | |
465 | #define VMBUS_CHANNEL_LOOPBACK_OFFER 0x100 | |
466 | #define VMBUS_CHANNEL_PARENT_OFFER 0x200 | |
467 | #define VMBUS_CHANNEL_REQUEST_MONITORED_NOTIFICATION 0x400 | |
468 | ||
50ed40e0 S |
469 | struct vmpacket_descriptor { |
470 | u16 type; | |
471 | u16 offset8; | |
472 | u16 len8; | |
473 | u16 flags; | |
474 | u64 trans_id; | |
475 | } __packed; | |
476 | ||
477 | struct vmpacket_header { | |
478 | u32 prev_pkt_start_offset; | |
479 | struct vmpacket_descriptor descriptor; | |
480 | } __packed; | |
481 | ||
482 | struct vmtransfer_page_range { | |
483 | u32 byte_count; | |
484 | u32 byte_offset; | |
485 | } __packed; | |
486 | ||
487 | struct vmtransfer_page_packet_header { | |
488 | struct vmpacket_descriptor d; | |
489 | u16 xfer_pageset_id; | |
1508d811 | 490 | u8 sender_owns_set; |
50ed40e0 S |
491 | u8 reserved; |
492 | u32 range_cnt; | |
493 | struct vmtransfer_page_range ranges[1]; | |
494 | } __packed; | |
495 | ||
496 | struct vmgpadl_packet_header { | |
497 | struct vmpacket_descriptor d; | |
498 | u32 gpadl; | |
499 | u32 reserved; | |
500 | } __packed; | |
501 | ||
502 | struct vmadd_remove_transfer_page_set { | |
503 | struct vmpacket_descriptor d; | |
504 | u32 gpadl; | |
505 | u16 xfer_pageset_id; | |
506 | u16 reserved; | |
507 | } __packed; | |
508 | ||
509 | /* | |
510 | * This structure defines a range in guest physical space that can be made to | |
511 | * look virtually contiguous. | |
512 | */ | |
513 | struct gpa_range { | |
514 | u32 byte_count; | |
515 | u32 byte_offset; | |
516 | u64 pfn_array[0]; | |
517 | }; | |
518 | ||
519 | /* | |
520 | * This is the format for an Establish Gpadl packet, which contains a handle by | |
521 | * which this GPADL will be known and a set of GPA ranges associated with it. | |
522 | * This can be converted to a MDL by the guest OS. If there are multiple GPA | |
523 | * ranges, then the resulting MDL will be "chained," representing multiple VA | |
524 | * ranges. | |
525 | */ | |
526 | struct vmestablish_gpadl { | |
527 | struct vmpacket_descriptor d; | |
528 | u32 gpadl; | |
529 | u32 range_cnt; | |
530 | struct gpa_range range[1]; | |
531 | } __packed; | |
532 | ||
533 | /* | |
534 | * This is the format for a Teardown Gpadl packet, which indicates that the | |
535 | * GPADL handle in the Establish Gpadl packet will never be referenced again. | |
536 | */ | |
537 | struct vmteardown_gpadl { | |
538 | struct vmpacket_descriptor d; | |
539 | u32 gpadl; | |
540 | u32 reserved; /* for alignment to a 8-byte boundary */ | |
541 | } __packed; | |
542 | ||
543 | /* | |
544 | * This is the format for a GPA-Direct packet, which contains a set of GPA | |
545 | * ranges, in addition to commands and/or data. | |
546 | */ | |
547 | struct vmdata_gpa_direct { | |
548 | struct vmpacket_descriptor d; | |
549 | u32 reserved; | |
550 | u32 range_cnt; | |
551 | struct gpa_range range[1]; | |
552 | } __packed; | |
553 | ||
554 | /* This is the format for a Additional Data Packet. */ | |
555 | struct vmadditional_data { | |
556 | struct vmpacket_descriptor d; | |
557 | u64 total_bytes; | |
558 | u32 offset; | |
559 | u32 byte_cnt; | |
560 | unsigned char data[1]; | |
561 | } __packed; | |
562 | ||
563 | union vmpacket_largest_possible_header { | |
564 | struct vmpacket_descriptor simple_hdr; | |
565 | struct vmtransfer_page_packet_header xfer_page_hdr; | |
566 | struct vmgpadl_packet_header gpadl_hdr; | |
567 | struct vmadd_remove_transfer_page_set add_rm_xfer_page_hdr; | |
568 | struct vmestablish_gpadl establish_gpadl_hdr; | |
569 | struct vmteardown_gpadl teardown_gpadl_hdr; | |
570 | struct vmdata_gpa_direct data_gpa_direct_hdr; | |
571 | }; | |
572 | ||
573 | #define VMPACKET_DATA_START_ADDRESS(__packet) \ | |
574 | (void *)(((unsigned char *)__packet) + \ | |
575 | ((struct vmpacket_descriptor)__packet)->offset8 * 8) | |
576 | ||
577 | #define VMPACKET_DATA_LENGTH(__packet) \ | |
578 | ((((struct vmpacket_descriptor)__packet)->len8 - \ | |
579 | ((struct vmpacket_descriptor)__packet)->offset8) * 8) | |
580 | ||
581 | #define VMPACKET_TRANSFER_MODE(__packet) \ | |
582 | (((struct IMPACT)__packet)->type) | |
583 | ||
584 | enum vmbus_packet_type { | |
585 | VM_PKT_INVALID = 0x0, | |
586 | VM_PKT_SYNCH = 0x1, | |
587 | VM_PKT_ADD_XFER_PAGESET = 0x2, | |
588 | VM_PKT_RM_XFER_PAGESET = 0x3, | |
589 | VM_PKT_ESTABLISH_GPADL = 0x4, | |
590 | VM_PKT_TEARDOWN_GPADL = 0x5, | |
591 | VM_PKT_DATA_INBAND = 0x6, | |
592 | VM_PKT_DATA_USING_XFER_PAGES = 0x7, | |
593 | VM_PKT_DATA_USING_GPADL = 0x8, | |
594 | VM_PKT_DATA_USING_GPA_DIRECT = 0x9, | |
595 | VM_PKT_CANCEL_REQUEST = 0xa, | |
596 | VM_PKT_COMP = 0xb, | |
597 | VM_PKT_DATA_USING_ADDITIONAL_PKT = 0xc, | |
598 | VM_PKT_ADDITIONAL_DATA = 0xd | |
599 | }; | |
600 | ||
601 | #define VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED 1 | |
517d8dc6 | 602 | |
b56dda06 | 603 | |
b56dda06 S |
604 | /* Version 1 messages */ |
605 | enum vmbus_channel_message_type { | |
606 | CHANNELMSG_INVALID = 0, | |
607 | CHANNELMSG_OFFERCHANNEL = 1, | |
608 | CHANNELMSG_RESCIND_CHANNELOFFER = 2, | |
609 | CHANNELMSG_REQUESTOFFERS = 3, | |
610 | CHANNELMSG_ALLOFFERS_DELIVERED = 4, | |
611 | CHANNELMSG_OPENCHANNEL = 5, | |
612 | CHANNELMSG_OPENCHANNEL_RESULT = 6, | |
613 | CHANNELMSG_CLOSECHANNEL = 7, | |
614 | CHANNELMSG_GPADL_HEADER = 8, | |
615 | CHANNELMSG_GPADL_BODY = 9, | |
616 | CHANNELMSG_GPADL_CREATED = 10, | |
617 | CHANNELMSG_GPADL_TEARDOWN = 11, | |
618 | CHANNELMSG_GPADL_TORNDOWN = 12, | |
619 | CHANNELMSG_RELID_RELEASED = 13, | |
620 | CHANNELMSG_INITIATE_CONTACT = 14, | |
621 | CHANNELMSG_VERSION_RESPONSE = 15, | |
622 | CHANNELMSG_UNLOAD = 16, | |
623 | #ifdef VMBUS_FEATURE_PARENT_OR_PEER_MEMORY_MAPPED_INTO_A_CHILD | |
624 | CHANNELMSG_VIEWRANGE_ADD = 17, | |
625 | CHANNELMSG_VIEWRANGE_REMOVE = 18, | |
626 | #endif | |
627 | CHANNELMSG_COUNT | |
628 | }; | |
629 | ||
630 | struct vmbus_channel_message_header { | |
631 | enum vmbus_channel_message_type msgtype; | |
632 | u32 padding; | |
633 | } __packed; | |
634 | ||
635 | /* Query VMBus Version parameters */ | |
636 | struct vmbus_channel_query_vmbus_version { | |
637 | struct vmbus_channel_message_header header; | |
638 | u32 version; | |
639 | } __packed; | |
640 | ||
641 | /* VMBus Version Supported parameters */ | |
642 | struct vmbus_channel_version_supported { | |
643 | struct vmbus_channel_message_header header; | |
1508d811 | 644 | u8 version_supported; |
b56dda06 S |
645 | } __packed; |
646 | ||
647 | /* Offer Channel parameters */ | |
648 | struct vmbus_channel_offer_channel { | |
649 | struct vmbus_channel_message_header header; | |
650 | struct vmbus_channel_offer offer; | |
651 | u32 child_relid; | |
652 | u8 monitorid; | |
1508d811 | 653 | u8 monitor_allocated; |
b56dda06 S |
654 | } __packed; |
655 | ||
656 | /* Rescind Offer parameters */ | |
657 | struct vmbus_channel_rescind_offer { | |
658 | struct vmbus_channel_message_header header; | |
659 | u32 child_relid; | |
660 | } __packed; | |
661 | ||
662 | /* | |
663 | * Request Offer -- no parameters, SynIC message contains the partition ID | |
664 | * Set Snoop -- no parameters, SynIC message contains the partition ID | |
665 | * Clear Snoop -- no parameters, SynIC message contains the partition ID | |
666 | * All Offers Delivered -- no parameters, SynIC message contains the partition | |
667 | * ID | |
668 | * Flush Client -- no parameters, SynIC message contains the partition ID | |
669 | */ | |
670 | ||
671 | /* Open Channel parameters */ | |
672 | struct vmbus_channel_open_channel { | |
673 | struct vmbus_channel_message_header header; | |
674 | ||
675 | /* Identifies the specific VMBus channel that is being opened. */ | |
676 | u32 child_relid; | |
677 | ||
678 | /* ID making a particular open request at a channel offer unique. */ | |
679 | u32 openid; | |
680 | ||
681 | /* GPADL for the channel's ring buffer. */ | |
682 | u32 ringbuffer_gpadlhandle; | |
683 | ||
684 | /* GPADL for the channel's server context save area. */ | |
685 | u32 server_contextarea_gpadlhandle; | |
686 | ||
687 | /* | |
688 | * The upstream ring buffer begins at offset zero in the memory | |
689 | * described by RingBufferGpadlHandle. The downstream ring buffer | |
690 | * follows it at this offset (in pages). | |
691 | */ | |
692 | u32 downstream_ringbuffer_pageoffset; | |
693 | ||
694 | /* User-specific data to be passed along to the server endpoint. */ | |
695 | unsigned char userdata[MAX_USER_DEFINED_BYTES]; | |
696 | } __packed; | |
697 | ||
698 | /* Open Channel Result parameters */ | |
699 | struct vmbus_channel_open_result { | |
700 | struct vmbus_channel_message_header header; | |
701 | u32 child_relid; | |
702 | u32 openid; | |
703 | u32 status; | |
704 | } __packed; | |
705 | ||
706 | /* Close channel parameters; */ | |
707 | struct vmbus_channel_close_channel { | |
708 | struct vmbus_channel_message_header header; | |
709 | u32 child_relid; | |
710 | } __packed; | |
711 | ||
712 | /* Channel Message GPADL */ | |
713 | #define GPADL_TYPE_RING_BUFFER 1 | |
714 | #define GPADL_TYPE_SERVER_SAVE_AREA 2 | |
715 | #define GPADL_TYPE_TRANSACTION 8 | |
716 | ||
717 | /* | |
718 | * The number of PFNs in a GPADL message is defined by the number of | |
719 | * pages that would be spanned by ByteCount and ByteOffset. If the | |
720 | * implied number of PFNs won't fit in this packet, there will be a | |
721 | * follow-up packet that contains more. | |
722 | */ | |
723 | struct vmbus_channel_gpadl_header { | |
724 | struct vmbus_channel_message_header header; | |
725 | u32 child_relid; | |
726 | u32 gpadl; | |
727 | u16 range_buflen; | |
728 | u16 rangecount; | |
729 | struct gpa_range range[0]; | |
730 | } __packed; | |
731 | ||
732 | /* This is the followup packet that contains more PFNs. */ | |
733 | struct vmbus_channel_gpadl_body { | |
734 | struct vmbus_channel_message_header header; | |
735 | u32 msgnumber; | |
736 | u32 gpadl; | |
737 | u64 pfn[0]; | |
738 | } __packed; | |
739 | ||
740 | struct vmbus_channel_gpadl_created { | |
741 | struct vmbus_channel_message_header header; | |
742 | u32 child_relid; | |
743 | u32 gpadl; | |
744 | u32 creation_status; | |
745 | } __packed; | |
746 | ||
747 | struct vmbus_channel_gpadl_teardown { | |
748 | struct vmbus_channel_message_header header; | |
749 | u32 child_relid; | |
750 | u32 gpadl; | |
751 | } __packed; | |
752 | ||
753 | struct vmbus_channel_gpadl_torndown { | |
754 | struct vmbus_channel_message_header header; | |
755 | u32 gpadl; | |
756 | } __packed; | |
757 | ||
758 | #ifdef VMBUS_FEATURE_PARENT_OR_PEER_MEMORY_MAPPED_INTO_A_CHILD | |
759 | struct vmbus_channel_view_range_add { | |
760 | struct vmbus_channel_message_header header; | |
761 | PHYSICAL_ADDRESS viewrange_base; | |
762 | u64 viewrange_length; | |
763 | u32 child_relid; | |
764 | } __packed; | |
765 | ||
766 | struct vmbus_channel_view_range_remove { | |
767 | struct vmbus_channel_message_header header; | |
768 | PHYSICAL_ADDRESS viewrange_base; | |
769 | u32 child_relid; | |
770 | } __packed; | |
771 | #endif | |
772 | ||
773 | struct vmbus_channel_relid_released { | |
774 | struct vmbus_channel_message_header header; | |
775 | u32 child_relid; | |
776 | } __packed; | |
777 | ||
778 | struct vmbus_channel_initiate_contact { | |
779 | struct vmbus_channel_message_header header; | |
780 | u32 vmbus_version_requested; | |
781 | u32 padding2; | |
782 | u64 interrupt_page; | |
783 | u64 monitor_page1; | |
784 | u64 monitor_page2; | |
785 | } __packed; | |
786 | ||
787 | struct vmbus_channel_version_response { | |
788 | struct vmbus_channel_message_header header; | |
1508d811 | 789 | u8 version_supported; |
b56dda06 S |
790 | } __packed; |
791 | ||
792 | enum vmbus_channel_state { | |
793 | CHANNEL_OFFER_STATE, | |
794 | CHANNEL_OPENING_STATE, | |
795 | CHANNEL_OPEN_STATE, | |
796 | }; | |
797 | ||
b56dda06 S |
798 | struct vmbus_channel_debug_info { |
799 | u32 relid; | |
800 | enum vmbus_channel_state state; | |
358d2ee2 S |
801 | uuid_le interfacetype; |
802 | uuid_le interface_instance; | |
b56dda06 S |
803 | u32 monitorid; |
804 | u32 servermonitor_pending; | |
805 | u32 servermonitor_latency; | |
806 | u32 servermonitor_connectionid; | |
807 | u32 clientmonitor_pending; | |
808 | u32 clientmonitor_latency; | |
809 | u32 clientmonitor_connectionid; | |
810 | ||
811 | struct hv_ring_buffer_debug_info inbound; | |
812 | struct hv_ring_buffer_debug_info outbound; | |
813 | }; | |
814 | ||
815 | /* | |
816 | * Represents each channel msg on the vmbus connection This is a | |
817 | * variable-size data structure depending on the msg type itself | |
818 | */ | |
819 | struct vmbus_channel_msginfo { | |
820 | /* Bookkeeping stuff */ | |
821 | struct list_head msglistentry; | |
822 | ||
823 | /* So far, this is only used to handle gpadl body message */ | |
824 | struct list_head submsglist; | |
825 | ||
826 | /* Synchronize the request/response if needed */ | |
827 | struct completion waitevent; | |
828 | union { | |
829 | struct vmbus_channel_version_supported version_supported; | |
830 | struct vmbus_channel_open_result open_result; | |
831 | struct vmbus_channel_gpadl_torndown gpadl_torndown; | |
832 | struct vmbus_channel_gpadl_created gpadl_created; | |
833 | struct vmbus_channel_version_response version_response; | |
834 | } response; | |
835 | ||
836 | u32 msgsize; | |
837 | /* | |
838 | * The channel message that goes out on the "wire". | |
839 | * It will contain at minimum the VMBUS_CHANNEL_MESSAGE_HEADER header | |
840 | */ | |
841 | unsigned char msg[0]; | |
842 | }; | |
843 | ||
f9f1db83 S |
844 | struct vmbus_close_msg { |
845 | struct vmbus_channel_msginfo info; | |
846 | struct vmbus_channel_close_channel msg; | |
847 | }; | |
848 | ||
7d7c75cd S |
849 | struct vmbus_channel { |
850 | struct list_head listentry; | |
851 | ||
852 | struct hv_device *device_obj; | |
853 | ||
854 | struct work_struct work; | |
855 | ||
856 | enum vmbus_channel_state state; | |
7d7c75cd S |
857 | |
858 | struct vmbus_channel_offer_channel offermsg; | |
859 | /* | |
860 | * These are based on the OfferMsg.MonitorId. | |
861 | * Save it here for easy access. | |
862 | */ | |
863 | u8 monitor_grp; | |
864 | u8 monitor_bit; | |
865 | ||
866 | u32 ringbuffer_gpadlhandle; | |
867 | ||
868 | /* Allocated memory for ring buffer */ | |
869 | void *ringbuffer_pages; | |
870 | u32 ringbuffer_pagecount; | |
871 | struct hv_ring_buffer_info outbound; /* send to parent */ | |
872 | struct hv_ring_buffer_info inbound; /* receive from parent */ | |
873 | spinlock_t inbound_lock; | |
874 | struct workqueue_struct *controlwq; | |
875 | ||
f9f1db83 S |
876 | struct vmbus_close_msg close_msg; |
877 | ||
7d7c75cd S |
878 | /* Channel callback are invoked in this workqueue context */ |
879 | /* HANDLE dataWorkQueue; */ | |
880 | ||
881 | void (*onchannel_callback)(void *context); | |
882 | void *channel_callback_context; | |
883 | }; | |
b56dda06 | 884 | |
b56dda06 S |
885 | void vmbus_onmessage(void *context); |
886 | ||
887 | int vmbus_request_offers(void); | |
888 | ||
c35470b2 S |
889 | /* The format must be the same as struct vmdata_gpa_direct */ |
890 | struct vmbus_channel_packet_page_buffer { | |
891 | u16 type; | |
892 | u16 dataoffset8; | |
893 | u16 length8; | |
894 | u16 flags; | |
895 | u64 transactionid; | |
896 | u32 reserved; | |
897 | u32 rangecount; | |
898 | struct hv_page_buffer range[MAX_PAGE_BUFFER_COUNT]; | |
899 | } __packed; | |
900 | ||
901 | /* The format must be the same as struct vmdata_gpa_direct */ | |
902 | struct vmbus_channel_packet_multipage_buffer { | |
903 | u16 type; | |
904 | u16 dataoffset8; | |
905 | u16 length8; | |
906 | u16 flags; | |
907 | u64 transactionid; | |
908 | u32 reserved; | |
909 | u32 rangecount; /* Always 1 in this case */ | |
910 | struct hv_multipage_buffer range; | |
911 | } __packed; | |
912 | ||
913 | ||
914 | extern int vmbus_open(struct vmbus_channel *channel, | |
915 | u32 send_ringbuffersize, | |
916 | u32 recv_ringbuffersize, | |
917 | void *userdata, | |
918 | u32 userdatalen, | |
919 | void(*onchannel_callback)(void *context), | |
920 | void *context); | |
921 | ||
922 | extern void vmbus_close(struct vmbus_channel *channel); | |
923 | ||
924 | extern int vmbus_sendpacket(struct vmbus_channel *channel, | |
925 | const void *buffer, | |
926 | u32 bufferLen, | |
927 | u64 requestid, | |
928 | enum vmbus_packet_type type, | |
929 | u32 flags); | |
930 | ||
931 | extern int vmbus_sendpacket_pagebuffer(struct vmbus_channel *channel, | |
932 | struct hv_page_buffer pagebuffers[], | |
933 | u32 pagecount, | |
934 | void *buffer, | |
935 | u32 bufferlen, | |
936 | u64 requestid); | |
937 | ||
938 | extern int vmbus_sendpacket_multipagebuffer(struct vmbus_channel *channel, | |
939 | struct hv_multipage_buffer *mpb, | |
940 | void *buffer, | |
941 | u32 bufferlen, | |
942 | u64 requestid); | |
943 | ||
944 | extern int vmbus_establish_gpadl(struct vmbus_channel *channel, | |
945 | void *kbuffer, | |
946 | u32 size, | |
947 | u32 *gpadl_handle); | |
948 | ||
949 | extern int vmbus_teardown_gpadl(struct vmbus_channel *channel, | |
950 | u32 gpadl_handle); | |
951 | ||
952 | extern int vmbus_recvpacket(struct vmbus_channel *channel, | |
953 | void *buffer, | |
954 | u32 bufferlen, | |
955 | u32 *buffer_actual_len, | |
956 | u64 *requestid); | |
957 | ||
958 | extern int vmbus_recvpacket_raw(struct vmbus_channel *channel, | |
959 | void *buffer, | |
960 | u32 bufferlen, | |
961 | u32 *buffer_actual_len, | |
962 | u64 *requestid); | |
963 | ||
c35470b2 S |
964 | |
965 | extern void vmbus_get_debug_info(struct vmbus_channel *channel, | |
966 | struct vmbus_channel_debug_info *debug); | |
967 | ||
968 | extern void vmbus_ontimer(unsigned long data); | |
969 | ||
35ea09c3 S |
970 | struct hv_dev_port_info { |
971 | u32 int_mask; | |
972 | u32 read_idx; | |
973 | u32 write_idx; | |
974 | u32 bytes_avail_toread; | |
975 | u32 bytes_avail_towrite; | |
976 | }; | |
977 | ||
35ea09c3 S |
978 | /* Base driver object */ |
979 | struct hv_driver { | |
980 | const char *name; | |
981 | ||
982 | /* the device type supported by this driver */ | |
358d2ee2 | 983 | uuid_le dev_type; |
2e2c1d17 | 984 | const struct hv_vmbus_device_id *id_table; |
35ea09c3 S |
985 | |
986 | struct device_driver driver; | |
987 | ||
84946899 | 988 | int (*probe)(struct hv_device *, const struct hv_vmbus_device_id *); |
35ea09c3 S |
989 | int (*remove)(struct hv_device *); |
990 | void (*shutdown)(struct hv_device *); | |
991 | ||
992 | }; | |
993 | ||
994 | /* Base device object */ | |
995 | struct hv_device { | |
996 | /* the device type id of this device */ | |
358d2ee2 | 997 | uuid_le dev_type; |
35ea09c3 S |
998 | |
999 | /* the device instance id of this device */ | |
358d2ee2 | 1000 | uuid_le dev_instance; |
35ea09c3 S |
1001 | |
1002 | struct device device; | |
1003 | ||
1004 | struct vmbus_channel *channel; | |
35ea09c3 S |
1005 | }; |
1006 | ||
27b5b3ca S |
1007 | |
1008 | static inline struct hv_device *device_to_hv_device(struct device *d) | |
1009 | { | |
1010 | return container_of(d, struct hv_device, device); | |
1011 | } | |
1012 | ||
1013 | static inline struct hv_driver *drv_to_hv_drv(struct device_driver *d) | |
1014 | { | |
1015 | return container_of(d, struct hv_driver, driver); | |
1016 | } | |
1017 | ||
ab101e86 S |
1018 | static inline void hv_set_drvdata(struct hv_device *dev, void *data) |
1019 | { | |
1020 | dev_set_drvdata(&dev->device, data); | |
1021 | } | |
1022 | ||
1023 | static inline void *hv_get_drvdata(struct hv_device *dev) | |
1024 | { | |
1025 | return dev_get_drvdata(&dev->device); | |
1026 | } | |
27b5b3ca S |
1027 | |
1028 | /* Vmbus interface */ | |
768fa219 GKH |
1029 | #define vmbus_driver_register(driver) \ |
1030 | __vmbus_driver_register(driver, THIS_MODULE, KBUILD_MODNAME) | |
1031 | int __must_check __vmbus_driver_register(struct hv_driver *hv_driver, | |
1032 | struct module *owner, | |
1033 | const char *mod_name); | |
1034 | void vmbus_driver_unregister(struct hv_driver *hv_driver); | |
27b5b3ca | 1035 | |
c45cf2d4 GKH |
1036 | /** |
1037 | * VMBUS_DEVICE - macro used to describe a specific hyperv vmbus device | |
1038 | * | |
1039 | * This macro is used to create a struct hv_vmbus_device_id that matches a | |
1040 | * specific device. | |
1041 | */ | |
1042 | #define VMBUS_DEVICE(g0, g1, g2, g3, g4, g5, g6, g7, \ | |
1043 | g8, g9, ga, gb, gc, gd, ge, gf) \ | |
1044 | .guid = { g0, g1, g2, g3, g4, g5, g6, g7, \ | |
1045 | g8, g9, ga, gb, gc, gd, ge, gf }, | |
1046 | ||
b189702d S |
1047 | /* |
1048 | * Common header for Hyper-V ICs | |
1049 | */ | |
1050 | ||
1051 | #define ICMSGTYPE_NEGOTIATE 0 | |
1052 | #define ICMSGTYPE_HEARTBEAT 1 | |
1053 | #define ICMSGTYPE_KVPEXCHANGE 2 | |
1054 | #define ICMSGTYPE_SHUTDOWN 3 | |
1055 | #define ICMSGTYPE_TIMESYNC 4 | |
1056 | #define ICMSGTYPE_VSS 5 | |
1057 | ||
1058 | #define ICMSGHDRFLAG_TRANSACTION 1 | |
1059 | #define ICMSGHDRFLAG_REQUEST 2 | |
1060 | #define ICMSGHDRFLAG_RESPONSE 4 | |
1061 | ||
b189702d | 1062 | |
a29b643c S |
1063 | /* |
1064 | * While we want to handle util services as regular devices, | |
1065 | * there is only one instance of each of these services; so | |
1066 | * we statically allocate the service specific state. | |
1067 | */ | |
1068 | ||
1069 | struct hv_util_service { | |
1070 | u8 *recv_buffer; | |
1071 | void (*util_cb)(void *); | |
1072 | int (*util_init)(struct hv_util_service *); | |
1073 | void (*util_deinit)(void); | |
1074 | }; | |
1075 | ||
b189702d S |
1076 | struct vmbuspipe_hdr { |
1077 | u32 flags; | |
1078 | u32 msgsize; | |
1079 | } __packed; | |
1080 | ||
1081 | struct ic_version { | |
1082 | u16 major; | |
1083 | u16 minor; | |
1084 | } __packed; | |
1085 | ||
1086 | struct icmsg_hdr { | |
1087 | struct ic_version icverframe; | |
1088 | u16 icmsgtype; | |
1089 | struct ic_version icvermsg; | |
1090 | u16 icmsgsize; | |
1091 | u32 status; | |
1092 | u8 ictransaction_id; | |
1093 | u8 icflags; | |
1094 | u8 reserved[2]; | |
1095 | } __packed; | |
1096 | ||
1097 | struct icmsg_negotiate { | |
1098 | u16 icframe_vercnt; | |
1099 | u16 icmsg_vercnt; | |
1100 | u32 reserved; | |
1101 | struct ic_version icversion_data[1]; /* any size array */ | |
1102 | } __packed; | |
1103 | ||
1104 | struct shutdown_msg_data { | |
1105 | u32 reason_code; | |
1106 | u32 timeout_seconds; | |
1107 | u32 flags; | |
1108 | u8 display_message[2048]; | |
1109 | } __packed; | |
1110 | ||
1111 | struct heartbeat_msg_data { | |
1112 | u64 seq_num; | |
1113 | u32 reserved[8]; | |
1114 | } __packed; | |
1115 | ||
1116 | /* Time Sync IC defs */ | |
1117 | #define ICTIMESYNCFLAG_PROBE 0 | |
1118 | #define ICTIMESYNCFLAG_SYNC 1 | |
1119 | #define ICTIMESYNCFLAG_SAMPLE 2 | |
1120 | ||
1121 | #ifdef __x86_64__ | |
1122 | #define WLTIMEDELTA 116444736000000000L /* in 100ns unit */ | |
1123 | #else | |
1124 | #define WLTIMEDELTA 116444736000000000LL | |
1125 | #endif | |
1126 | ||
1127 | struct ictimesync_data { | |
1128 | u64 parenttime; | |
1129 | u64 childtime; | |
1130 | u64 roundtriptime; | |
1131 | u8 flags; | |
1132 | } __packed; | |
1133 | ||
b189702d S |
1134 | struct hyperv_service_callback { |
1135 | u8 msg_type; | |
1136 | char *log_msg; | |
358d2ee2 | 1137 | uuid_le data; |
b189702d S |
1138 | struct vmbus_channel *channel; |
1139 | void (*callback) (void *context); | |
1140 | }; | |
1141 | ||
c836d0ab | 1142 | #define MAX_SRV_VER 0x7ffffff |
da0e9631 | 1143 | extern void vmbus_prep_negotiate_resp(struct icmsg_hdr *, |
c836d0ab S |
1144 | struct icmsg_negotiate *, u8 *, int, |
1145 | int); | |
b189702d | 1146 | |
2939437c S |
1147 | int hv_kvp_init(struct hv_util_service *); |
1148 | void hv_kvp_deinit(void); | |
1149 | void hv_kvp_onchannelcallback(void *); | |
1150 | ||
1151 | #endif /* __KERNEL__ */ | |
3f335ea2 | 1152 | #endif /* _HYPERV_H */ |