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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 | ||
5267cf02 | 28 | #include <uapi/linux/hyperv.h> |
c75efa97 | 29 | #include <uapi/asm/hyperv.h> |
2939437c | 30 | |
5267cf02 | 31 | #include <linux/types.h> |
8ff3e6fc S |
32 | #include <linux/scatterlist.h> |
33 | #include <linux/list.h> | |
34 | #include <linux/timer.h> | |
35 | #include <linux/workqueue.h> | |
36 | #include <linux/completion.h> | |
37 | #include <linux/device.h> | |
2e2c1d17 | 38 | #include <linux/mod_devicetable.h> |
8ff3e6fc S |
39 | |
40 | ||
7e5ec368 | 41 | #define MAX_PAGE_BUFFER_COUNT 32 |
a363bf7b S |
42 | #define MAX_MULTIPAGE_BUFFER_COUNT 32 /* 128K */ |
43 | ||
44 | #pragma pack(push, 1) | |
45 | ||
46 | /* Single-page buffer */ | |
47 | struct hv_page_buffer { | |
48 | u32 len; | |
49 | u32 offset; | |
50 | u64 pfn; | |
51 | }; | |
52 | ||
53 | /* Multiple-page buffer */ | |
54 | struct hv_multipage_buffer { | |
55 | /* Length and Offset determines the # of pfns in the array */ | |
56 | u32 len; | |
57 | u32 offset; | |
58 | u64 pfn_array[MAX_MULTIPAGE_BUFFER_COUNT]; | |
59 | }; | |
60 | ||
d61031ee S |
61 | /* |
62 | * Multiple-page buffer array; the pfn array is variable size: | |
63 | * The number of entries in the PFN array is determined by | |
64 | * "len" and "offset". | |
65 | */ | |
66 | struct hv_mpb_array { | |
67 | /* Length and Offset determines the # of pfns in the array */ | |
68 | u32 len; | |
69 | u32 offset; | |
70 | u64 pfn_array[]; | |
71 | }; | |
72 | ||
a363bf7b S |
73 | /* 0x18 includes the proprietary packet header */ |
74 | #define MAX_PAGE_BUFFER_PACKET (0x18 + \ | |
75 | (sizeof(struct hv_page_buffer) * \ | |
76 | MAX_PAGE_BUFFER_COUNT)) | |
77 | #define MAX_MULTIPAGE_BUFFER_PACKET (0x18 + \ | |
78 | sizeof(struct hv_multipage_buffer)) | |
79 | ||
80 | ||
81 | #pragma pack(pop) | |
82 | ||
7effffb7 S |
83 | struct hv_ring_buffer { |
84 | /* Offset in bytes from the start of ring data below */ | |
85 | u32 write_index; | |
86 | ||
87 | /* Offset in bytes from the start of ring data below */ | |
88 | u32 read_index; | |
89 | ||
90 | u32 interrupt_mask; | |
91 | ||
2416603e S |
92 | /* |
93 | * Win8 uses some of the reserved bits to implement | |
94 | * interrupt driven flow management. On the send side | |
95 | * we can request that the receiver interrupt the sender | |
96 | * when the ring transitions from being full to being able | |
97 | * to handle a message of size "pending_send_sz". | |
98 | * | |
99 | * Add necessary state for this enhancement. | |
7effffb7 | 100 | */ |
2416603e S |
101 | u32 pending_send_sz; |
102 | ||
103 | u32 reserved1[12]; | |
104 | ||
105 | union { | |
106 | struct { | |
107 | u32 feat_pending_send_sz:1; | |
108 | }; | |
109 | u32 value; | |
110 | } feature_bits; | |
111 | ||
112 | /* Pad it to PAGE_SIZE so that data starts on page boundary */ | |
113 | u8 reserved2[4028]; | |
7effffb7 S |
114 | |
115 | /* | |
116 | * Ring data starts here + RingDataStartOffset | |
117 | * !!! DO NOT place any fields below this !!! | |
118 | */ | |
119 | u8 buffer[0]; | |
120 | } __packed; | |
121 | ||
122 | struct hv_ring_buffer_info { | |
123 | struct hv_ring_buffer *ring_buffer; | |
124 | u32 ring_size; /* Include the shared header */ | |
125 | spinlock_t ring_lock; | |
126 | ||
127 | u32 ring_datasize; /* < ring_size */ | |
128 | u32 ring_data_startoffset; | |
129 | }; | |
130 | ||
33be96e4 HZ |
131 | /* |
132 | * | |
133 | * hv_get_ringbuffer_availbytes() | |
134 | * | |
135 | * Get number of bytes available to read and to write to | |
136 | * for the specified ring buffer | |
137 | */ | |
138 | static inline void | |
139 | hv_get_ringbuffer_availbytes(struct hv_ring_buffer_info *rbi, | |
140 | u32 *read, u32 *write) | |
141 | { | |
142 | u32 read_loc, write_loc, dsize; | |
143 | ||
33be96e4 HZ |
144 | /* Capture the read/write indices before they changed */ |
145 | read_loc = rbi->ring_buffer->read_index; | |
146 | write_loc = rbi->ring_buffer->write_index; | |
147 | dsize = rbi->ring_datasize; | |
148 | ||
149 | *write = write_loc >= read_loc ? dsize - (write_loc - read_loc) : | |
150 | read_loc - write_loc; | |
151 | *read = dsize - *write; | |
152 | } | |
153 | ||
eafa7072 S |
154 | /* |
155 | * VMBUS version is 32 bit entity broken up into | |
156 | * two 16 bit quantities: major_number. minor_number. | |
157 | * | |
158 | * 0 . 13 (Windows Server 2008) | |
159 | * 1 . 1 (Windows 7) | |
160 | * 2 . 4 (Windows 8) | |
03367ef5 | 161 | * 3 . 0 (Windows 8 R2) |
6c4e5f9c | 162 | * 4 . 0 (Windows 10) |
eafa7072 S |
163 | */ |
164 | ||
165 | #define VERSION_WS2008 ((0 << 16) | (13)) | |
166 | #define VERSION_WIN7 ((1 << 16) | (1)) | |
167 | #define VERSION_WIN8 ((2 << 16) | (4)) | |
03367ef5 | 168 | #define VERSION_WIN8_1 ((3 << 16) | (0)) |
6c4e5f9c | 169 | #define VERSION_WIN10 ((4 << 16) | (0)) |
eafa7072 S |
170 | |
171 | #define VERSION_INVAL -1 | |
172 | ||
6c4e5f9c | 173 | #define VERSION_CURRENT VERSION_WIN10 |
f7c6dfda | 174 | |
517d8dc6 S |
175 | /* Make maximum size of pipe payload of 16K */ |
176 | #define MAX_PIPE_DATA_PAYLOAD (sizeof(u8) * 16384) | |
177 | ||
178 | /* Define PipeMode values. */ | |
179 | #define VMBUS_PIPE_TYPE_BYTE 0x00000000 | |
180 | #define VMBUS_PIPE_TYPE_MESSAGE 0x00000004 | |
181 | ||
182 | /* The size of the user defined data buffer for non-pipe offers. */ | |
183 | #define MAX_USER_DEFINED_BYTES 120 | |
184 | ||
185 | /* The size of the user defined data buffer for pipe offers. */ | |
186 | #define MAX_PIPE_USER_DEFINED_BYTES 116 | |
187 | ||
188 | /* | |
189 | * At the center of the Channel Management library is the Channel Offer. This | |
190 | * struct contains the fundamental information about an offer. | |
191 | */ | |
192 | struct vmbus_channel_offer { | |
358d2ee2 S |
193 | uuid_le if_type; |
194 | uuid_le if_instance; | |
29423b7e S |
195 | |
196 | /* | |
197 | * These two fields are not currently used. | |
198 | */ | |
199 | u64 reserved1; | |
200 | u64 reserved2; | |
201 | ||
517d8dc6 S |
202 | u16 chn_flags; |
203 | u16 mmio_megabytes; /* in bytes * 1024 * 1024 */ | |
204 | ||
205 | union { | |
206 | /* Non-pipes: The user has MAX_USER_DEFINED_BYTES bytes. */ | |
207 | struct { | |
208 | unsigned char user_def[MAX_USER_DEFINED_BYTES]; | |
209 | } std; | |
210 | ||
211 | /* | |
212 | * Pipes: | |
213 | * The following sructure is an integrated pipe protocol, which | |
214 | * is implemented on top of standard user-defined data. Pipe | |
215 | * clients have MAX_PIPE_USER_DEFINED_BYTES left for their own | |
216 | * use. | |
217 | */ | |
218 | struct { | |
219 | u32 pipe_mode; | |
220 | unsigned char user_def[MAX_PIPE_USER_DEFINED_BYTES]; | |
221 | } pipe; | |
222 | } u; | |
29423b7e S |
223 | /* |
224 | * The sub_channel_index is defined in win8. | |
225 | */ | |
226 | u16 sub_channel_index; | |
227 | u16 reserved3; | |
517d8dc6 S |
228 | } __packed; |
229 | ||
230 | /* Server Flags */ | |
231 | #define VMBUS_CHANNEL_ENUMERATE_DEVICE_INTERFACE 1 | |
232 | #define VMBUS_CHANNEL_SERVER_SUPPORTS_TRANSFER_PAGES 2 | |
233 | #define VMBUS_CHANNEL_SERVER_SUPPORTS_GPADLS 4 | |
234 | #define VMBUS_CHANNEL_NAMED_PIPE_MODE 0x10 | |
235 | #define VMBUS_CHANNEL_LOOPBACK_OFFER 0x100 | |
236 | #define VMBUS_CHANNEL_PARENT_OFFER 0x200 | |
237 | #define VMBUS_CHANNEL_REQUEST_MONITORED_NOTIFICATION 0x400 | |
238 | ||
50ed40e0 S |
239 | struct vmpacket_descriptor { |
240 | u16 type; | |
241 | u16 offset8; | |
242 | u16 len8; | |
243 | u16 flags; | |
244 | u64 trans_id; | |
245 | } __packed; | |
246 | ||
247 | struct vmpacket_header { | |
248 | u32 prev_pkt_start_offset; | |
249 | struct vmpacket_descriptor descriptor; | |
250 | } __packed; | |
251 | ||
252 | struct vmtransfer_page_range { | |
253 | u32 byte_count; | |
254 | u32 byte_offset; | |
255 | } __packed; | |
256 | ||
257 | struct vmtransfer_page_packet_header { | |
258 | struct vmpacket_descriptor d; | |
259 | u16 xfer_pageset_id; | |
1508d811 | 260 | u8 sender_owns_set; |
50ed40e0 S |
261 | u8 reserved; |
262 | u32 range_cnt; | |
263 | struct vmtransfer_page_range ranges[1]; | |
264 | } __packed; | |
265 | ||
266 | struct vmgpadl_packet_header { | |
267 | struct vmpacket_descriptor d; | |
268 | u32 gpadl; | |
269 | u32 reserved; | |
270 | } __packed; | |
271 | ||
272 | struct vmadd_remove_transfer_page_set { | |
273 | struct vmpacket_descriptor d; | |
274 | u32 gpadl; | |
275 | u16 xfer_pageset_id; | |
276 | u16 reserved; | |
277 | } __packed; | |
278 | ||
279 | /* | |
280 | * This structure defines a range in guest physical space that can be made to | |
281 | * look virtually contiguous. | |
282 | */ | |
283 | struct gpa_range { | |
284 | u32 byte_count; | |
285 | u32 byte_offset; | |
286 | u64 pfn_array[0]; | |
287 | }; | |
288 | ||
289 | /* | |
290 | * This is the format for an Establish Gpadl packet, which contains a handle by | |
291 | * which this GPADL will be known and a set of GPA ranges associated with it. | |
292 | * This can be converted to a MDL by the guest OS. If there are multiple GPA | |
293 | * ranges, then the resulting MDL will be "chained," representing multiple VA | |
294 | * ranges. | |
295 | */ | |
296 | struct vmestablish_gpadl { | |
297 | struct vmpacket_descriptor d; | |
298 | u32 gpadl; | |
299 | u32 range_cnt; | |
300 | struct gpa_range range[1]; | |
301 | } __packed; | |
302 | ||
303 | /* | |
304 | * This is the format for a Teardown Gpadl packet, which indicates that the | |
305 | * GPADL handle in the Establish Gpadl packet will never be referenced again. | |
306 | */ | |
307 | struct vmteardown_gpadl { | |
308 | struct vmpacket_descriptor d; | |
309 | u32 gpadl; | |
310 | u32 reserved; /* for alignment to a 8-byte boundary */ | |
311 | } __packed; | |
312 | ||
313 | /* | |
314 | * This is the format for a GPA-Direct packet, which contains a set of GPA | |
315 | * ranges, in addition to commands and/or data. | |
316 | */ | |
317 | struct vmdata_gpa_direct { | |
318 | struct vmpacket_descriptor d; | |
319 | u32 reserved; | |
320 | u32 range_cnt; | |
321 | struct gpa_range range[1]; | |
322 | } __packed; | |
323 | ||
324 | /* This is the format for a Additional Data Packet. */ | |
325 | struct vmadditional_data { | |
326 | struct vmpacket_descriptor d; | |
327 | u64 total_bytes; | |
328 | u32 offset; | |
329 | u32 byte_cnt; | |
330 | unsigned char data[1]; | |
331 | } __packed; | |
332 | ||
333 | union vmpacket_largest_possible_header { | |
334 | struct vmpacket_descriptor simple_hdr; | |
335 | struct vmtransfer_page_packet_header xfer_page_hdr; | |
336 | struct vmgpadl_packet_header gpadl_hdr; | |
337 | struct vmadd_remove_transfer_page_set add_rm_xfer_page_hdr; | |
338 | struct vmestablish_gpadl establish_gpadl_hdr; | |
339 | struct vmteardown_gpadl teardown_gpadl_hdr; | |
340 | struct vmdata_gpa_direct data_gpa_direct_hdr; | |
341 | }; | |
342 | ||
343 | #define VMPACKET_DATA_START_ADDRESS(__packet) \ | |
344 | (void *)(((unsigned char *)__packet) + \ | |
345 | ((struct vmpacket_descriptor)__packet)->offset8 * 8) | |
346 | ||
347 | #define VMPACKET_DATA_LENGTH(__packet) \ | |
348 | ((((struct vmpacket_descriptor)__packet)->len8 - \ | |
349 | ((struct vmpacket_descriptor)__packet)->offset8) * 8) | |
350 | ||
351 | #define VMPACKET_TRANSFER_MODE(__packet) \ | |
352 | (((struct IMPACT)__packet)->type) | |
353 | ||
354 | enum vmbus_packet_type { | |
355 | VM_PKT_INVALID = 0x0, | |
356 | VM_PKT_SYNCH = 0x1, | |
357 | VM_PKT_ADD_XFER_PAGESET = 0x2, | |
358 | VM_PKT_RM_XFER_PAGESET = 0x3, | |
359 | VM_PKT_ESTABLISH_GPADL = 0x4, | |
360 | VM_PKT_TEARDOWN_GPADL = 0x5, | |
361 | VM_PKT_DATA_INBAND = 0x6, | |
362 | VM_PKT_DATA_USING_XFER_PAGES = 0x7, | |
363 | VM_PKT_DATA_USING_GPADL = 0x8, | |
364 | VM_PKT_DATA_USING_GPA_DIRECT = 0x9, | |
365 | VM_PKT_CANCEL_REQUEST = 0xa, | |
366 | VM_PKT_COMP = 0xb, | |
367 | VM_PKT_DATA_USING_ADDITIONAL_PKT = 0xc, | |
368 | VM_PKT_ADDITIONAL_DATA = 0xd | |
369 | }; | |
370 | ||
371 | #define VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED 1 | |
517d8dc6 | 372 | |
b56dda06 | 373 | |
b56dda06 S |
374 | /* Version 1 messages */ |
375 | enum vmbus_channel_message_type { | |
376 | CHANNELMSG_INVALID = 0, | |
377 | CHANNELMSG_OFFERCHANNEL = 1, | |
378 | CHANNELMSG_RESCIND_CHANNELOFFER = 2, | |
379 | CHANNELMSG_REQUESTOFFERS = 3, | |
380 | CHANNELMSG_ALLOFFERS_DELIVERED = 4, | |
381 | CHANNELMSG_OPENCHANNEL = 5, | |
382 | CHANNELMSG_OPENCHANNEL_RESULT = 6, | |
383 | CHANNELMSG_CLOSECHANNEL = 7, | |
384 | CHANNELMSG_GPADL_HEADER = 8, | |
385 | CHANNELMSG_GPADL_BODY = 9, | |
386 | CHANNELMSG_GPADL_CREATED = 10, | |
387 | CHANNELMSG_GPADL_TEARDOWN = 11, | |
388 | CHANNELMSG_GPADL_TORNDOWN = 12, | |
389 | CHANNELMSG_RELID_RELEASED = 13, | |
390 | CHANNELMSG_INITIATE_CONTACT = 14, | |
391 | CHANNELMSG_VERSION_RESPONSE = 15, | |
392 | CHANNELMSG_UNLOAD = 16, | |
2db84eff | 393 | CHANNELMSG_UNLOAD_RESPONSE = 17, |
b56dda06 S |
394 | CHANNELMSG_COUNT |
395 | }; | |
396 | ||
397 | struct vmbus_channel_message_header { | |
398 | enum vmbus_channel_message_type msgtype; | |
399 | u32 padding; | |
400 | } __packed; | |
401 | ||
402 | /* Query VMBus Version parameters */ | |
403 | struct vmbus_channel_query_vmbus_version { | |
404 | struct vmbus_channel_message_header header; | |
405 | u32 version; | |
406 | } __packed; | |
407 | ||
408 | /* VMBus Version Supported parameters */ | |
409 | struct vmbus_channel_version_supported { | |
410 | struct vmbus_channel_message_header header; | |
1508d811 | 411 | u8 version_supported; |
b56dda06 S |
412 | } __packed; |
413 | ||
414 | /* Offer Channel parameters */ | |
415 | struct vmbus_channel_offer_channel { | |
416 | struct vmbus_channel_message_header header; | |
417 | struct vmbus_channel_offer offer; | |
418 | u32 child_relid; | |
419 | u8 monitorid; | |
29423b7e S |
420 | /* |
421 | * win7 and beyond splits this field into a bit field. | |
422 | */ | |
423 | u8 monitor_allocated:1; | |
424 | u8 reserved:7; | |
425 | /* | |
426 | * These are new fields added in win7 and later. | |
427 | * Do not access these fields without checking the | |
428 | * negotiated protocol. | |
429 | * | |
430 | * If "is_dedicated_interrupt" is set, we must not set the | |
431 | * associated bit in the channel bitmap while sending the | |
432 | * interrupt to the host. | |
433 | * | |
434 | * connection_id is to be used in signaling the host. | |
435 | */ | |
436 | u16 is_dedicated_interrupt:1; | |
437 | u16 reserved1:15; | |
438 | u32 connection_id; | |
b56dda06 S |
439 | } __packed; |
440 | ||
441 | /* Rescind Offer parameters */ | |
442 | struct vmbus_channel_rescind_offer { | |
443 | struct vmbus_channel_message_header header; | |
444 | u32 child_relid; | |
445 | } __packed; | |
446 | ||
447 | /* | |
448 | * Request Offer -- no parameters, SynIC message contains the partition ID | |
449 | * Set Snoop -- no parameters, SynIC message contains the partition ID | |
450 | * Clear Snoop -- no parameters, SynIC message contains the partition ID | |
451 | * All Offers Delivered -- no parameters, SynIC message contains the partition | |
452 | * ID | |
453 | * Flush Client -- no parameters, SynIC message contains the partition ID | |
454 | */ | |
455 | ||
456 | /* Open Channel parameters */ | |
457 | struct vmbus_channel_open_channel { | |
458 | struct vmbus_channel_message_header header; | |
459 | ||
460 | /* Identifies the specific VMBus channel that is being opened. */ | |
461 | u32 child_relid; | |
462 | ||
463 | /* ID making a particular open request at a channel offer unique. */ | |
464 | u32 openid; | |
465 | ||
466 | /* GPADL for the channel's ring buffer. */ | |
467 | u32 ringbuffer_gpadlhandle; | |
468 | ||
abbf3b2a S |
469 | /* |
470 | * Starting with win8, this field will be used to specify | |
471 | * the target virtual processor on which to deliver the interrupt for | |
472 | * the host to guest communication. | |
473 | * Prior to win8, incoming channel interrupts would only | |
474 | * be delivered on cpu 0. Setting this value to 0 would | |
475 | * preserve the earlier behavior. | |
476 | */ | |
477 | u32 target_vp; | |
b56dda06 S |
478 | |
479 | /* | |
480 | * The upstream ring buffer begins at offset zero in the memory | |
481 | * described by RingBufferGpadlHandle. The downstream ring buffer | |
482 | * follows it at this offset (in pages). | |
483 | */ | |
484 | u32 downstream_ringbuffer_pageoffset; | |
485 | ||
486 | /* User-specific data to be passed along to the server endpoint. */ | |
487 | unsigned char userdata[MAX_USER_DEFINED_BYTES]; | |
488 | } __packed; | |
489 | ||
490 | /* Open Channel Result parameters */ | |
491 | struct vmbus_channel_open_result { | |
492 | struct vmbus_channel_message_header header; | |
493 | u32 child_relid; | |
494 | u32 openid; | |
495 | u32 status; | |
496 | } __packed; | |
497 | ||
498 | /* Close channel parameters; */ | |
499 | struct vmbus_channel_close_channel { | |
500 | struct vmbus_channel_message_header header; | |
501 | u32 child_relid; | |
502 | } __packed; | |
503 | ||
504 | /* Channel Message GPADL */ | |
505 | #define GPADL_TYPE_RING_BUFFER 1 | |
506 | #define GPADL_TYPE_SERVER_SAVE_AREA 2 | |
507 | #define GPADL_TYPE_TRANSACTION 8 | |
508 | ||
509 | /* | |
510 | * The number of PFNs in a GPADL message is defined by the number of | |
511 | * pages that would be spanned by ByteCount and ByteOffset. If the | |
512 | * implied number of PFNs won't fit in this packet, there will be a | |
513 | * follow-up packet that contains more. | |
514 | */ | |
515 | struct vmbus_channel_gpadl_header { | |
516 | struct vmbus_channel_message_header header; | |
517 | u32 child_relid; | |
518 | u32 gpadl; | |
519 | u16 range_buflen; | |
520 | u16 rangecount; | |
521 | struct gpa_range range[0]; | |
522 | } __packed; | |
523 | ||
524 | /* This is the followup packet that contains more PFNs. */ | |
525 | struct vmbus_channel_gpadl_body { | |
526 | struct vmbus_channel_message_header header; | |
527 | u32 msgnumber; | |
528 | u32 gpadl; | |
529 | u64 pfn[0]; | |
530 | } __packed; | |
531 | ||
532 | struct vmbus_channel_gpadl_created { | |
533 | struct vmbus_channel_message_header header; | |
534 | u32 child_relid; | |
535 | u32 gpadl; | |
536 | u32 creation_status; | |
537 | } __packed; | |
538 | ||
539 | struct vmbus_channel_gpadl_teardown { | |
540 | struct vmbus_channel_message_header header; | |
541 | u32 child_relid; | |
542 | u32 gpadl; | |
543 | } __packed; | |
544 | ||
545 | struct vmbus_channel_gpadl_torndown { | |
546 | struct vmbus_channel_message_header header; | |
547 | u32 gpadl; | |
548 | } __packed; | |
549 | ||
b56dda06 S |
550 | struct vmbus_channel_relid_released { |
551 | struct vmbus_channel_message_header header; | |
552 | u32 child_relid; | |
553 | } __packed; | |
554 | ||
555 | struct vmbus_channel_initiate_contact { | |
556 | struct vmbus_channel_message_header header; | |
557 | u32 vmbus_version_requested; | |
e28bab48 | 558 | u32 target_vcpu; /* The VCPU the host should respond to */ |
b56dda06 S |
559 | u64 interrupt_page; |
560 | u64 monitor_page1; | |
561 | u64 monitor_page2; | |
562 | } __packed; | |
563 | ||
564 | struct vmbus_channel_version_response { | |
565 | struct vmbus_channel_message_header header; | |
1508d811 | 566 | u8 version_supported; |
b56dda06 S |
567 | } __packed; |
568 | ||
569 | enum vmbus_channel_state { | |
570 | CHANNEL_OFFER_STATE, | |
571 | CHANNEL_OPENING_STATE, | |
572 | CHANNEL_OPEN_STATE, | |
e68d2971 | 573 | CHANNEL_OPENED_STATE, |
b56dda06 S |
574 | }; |
575 | ||
b56dda06 S |
576 | /* |
577 | * Represents each channel msg on the vmbus connection This is a | |
578 | * variable-size data structure depending on the msg type itself | |
579 | */ | |
580 | struct vmbus_channel_msginfo { | |
581 | /* Bookkeeping stuff */ | |
582 | struct list_head msglistentry; | |
583 | ||
584 | /* So far, this is only used to handle gpadl body message */ | |
585 | struct list_head submsglist; | |
586 | ||
587 | /* Synchronize the request/response if needed */ | |
588 | struct completion waitevent; | |
589 | union { | |
590 | struct vmbus_channel_version_supported version_supported; | |
591 | struct vmbus_channel_open_result open_result; | |
592 | struct vmbus_channel_gpadl_torndown gpadl_torndown; | |
593 | struct vmbus_channel_gpadl_created gpadl_created; | |
594 | struct vmbus_channel_version_response version_response; | |
595 | } response; | |
596 | ||
597 | u32 msgsize; | |
598 | /* | |
599 | * The channel message that goes out on the "wire". | |
600 | * It will contain at minimum the VMBUS_CHANNEL_MESSAGE_HEADER header | |
601 | */ | |
602 | unsigned char msg[0]; | |
603 | }; | |
604 | ||
f9f1db83 S |
605 | struct vmbus_close_msg { |
606 | struct vmbus_channel_msginfo info; | |
607 | struct vmbus_channel_close_channel msg; | |
608 | }; | |
609 | ||
b3bf60c7 S |
610 | /* Define connection identifier type. */ |
611 | union hv_connection_id { | |
612 | u32 asu32; | |
613 | struct { | |
614 | u32 id:24; | |
615 | u32 reserved:8; | |
616 | } u; | |
617 | }; | |
618 | ||
619 | /* Definition of the hv_signal_event hypercall input structure. */ | |
620 | struct hv_input_signal_event { | |
621 | union hv_connection_id connectionid; | |
622 | u16 flag_number; | |
623 | u16 rsvdz; | |
624 | }; | |
625 | ||
626 | struct hv_input_signal_event_buffer { | |
627 | u64 align8; | |
628 | struct hv_input_signal_event event; | |
629 | }; | |
630 | ||
8599846d S |
631 | enum hv_signal_policy { |
632 | HV_SIGNAL_POLICY_DEFAULT = 0, | |
633 | HV_SIGNAL_POLICY_EXPLICIT, | |
634 | }; | |
635 | ||
7d7c75cd | 636 | struct vmbus_channel { |
bc63b6f6 VK |
637 | /* Unique channel id */ |
638 | int id; | |
639 | ||
7d7c75cd S |
640 | struct list_head listentry; |
641 | ||
642 | struct hv_device *device_obj; | |
643 | ||
7d7c75cd | 644 | enum vmbus_channel_state state; |
7d7c75cd S |
645 | |
646 | struct vmbus_channel_offer_channel offermsg; | |
647 | /* | |
648 | * These are based on the OfferMsg.MonitorId. | |
649 | * Save it here for easy access. | |
650 | */ | |
651 | u8 monitor_grp; | |
652 | u8 monitor_bit; | |
653 | ||
c3582a2c HZ |
654 | bool rescind; /* got rescind msg */ |
655 | ||
7d7c75cd S |
656 | u32 ringbuffer_gpadlhandle; |
657 | ||
658 | /* Allocated memory for ring buffer */ | |
659 | void *ringbuffer_pages; | |
660 | u32 ringbuffer_pagecount; | |
661 | struct hv_ring_buffer_info outbound; /* send to parent */ | |
662 | struct hv_ring_buffer_info inbound; /* receive from parent */ | |
663 | spinlock_t inbound_lock; | |
7d7c75cd | 664 | |
f9f1db83 S |
665 | struct vmbus_close_msg close_msg; |
666 | ||
7d7c75cd S |
667 | /* Channel callback are invoked in this workqueue context */ |
668 | /* HANDLE dataWorkQueue; */ | |
669 | ||
670 | void (*onchannel_callback)(void *context); | |
671 | void *channel_callback_context; | |
132368bd S |
672 | |
673 | /* | |
674 | * A channel can be marked for efficient (batched) | |
675 | * reading: | |
676 | * If batched_reading is set to "true", we read until the | |
677 | * channel is empty and hold off interrupts from the host | |
678 | * during the entire read process. | |
679 | * If batched_reading is set to "false", the client is not | |
680 | * going to perform batched reading. | |
681 | * | |
682 | * By default we will enable batched reading; specific | |
683 | * drivers that don't want this behavior can turn it off. | |
684 | */ | |
685 | ||
686 | bool batched_reading; | |
b3bf60c7 S |
687 | |
688 | bool is_dedicated_interrupt; | |
689 | struct hv_input_signal_event_buffer sig_buf; | |
690 | struct hv_input_signal_event *sig_event; | |
abbf3b2a S |
691 | |
692 | /* | |
693 | * Starting with win8, this field will be used to specify | |
694 | * the target virtual processor on which to deliver the interrupt for | |
695 | * the host to guest communication. | |
696 | * Prior to win8, incoming channel interrupts would only | |
697 | * be delivered on cpu 0. Setting this value to 0 would | |
698 | * preserve the earlier behavior. | |
699 | */ | |
700 | u32 target_vp; | |
d3ba720d S |
701 | /* The corresponding CPUID in the guest */ |
702 | u32 target_cpu; | |
1f656ff3 S |
703 | /* |
704 | * State to manage the CPU affiliation of channels. | |
705 | */ | |
3b71107d | 706 | struct cpumask alloced_cpus_in_node; |
1f656ff3 | 707 | int numa_node; |
e68d2971 S |
708 | /* |
709 | * Support for sub-channels. For high performance devices, | |
710 | * it will be useful to have multiple sub-channels to support | |
711 | * a scalable communication infrastructure with the host. | |
712 | * The support for sub-channels is implemented as an extention | |
713 | * to the current infrastructure. | |
714 | * The initial offer is considered the primary channel and this | |
715 | * offer message will indicate if the host supports sub-channels. | |
716 | * The guest is free to ask for sub-channels to be offerred and can | |
717 | * open these sub-channels as a normal "primary" channel. However, | |
718 | * all sub-channels will have the same type and instance guids as the | |
719 | * primary channel. Requests sent on a given channel will result in a | |
720 | * response on the same channel. | |
721 | */ | |
722 | ||
723 | /* | |
724 | * Sub-channel creation callback. This callback will be called in | |
725 | * process context when a sub-channel offer is received from the host. | |
726 | * The guest can open the sub-channel in the context of this callback. | |
727 | */ | |
728 | void (*sc_creation_callback)(struct vmbus_channel *new_sc); | |
729 | ||
67fae053 VK |
730 | /* |
731 | * The spinlock to protect the structure. It is being used to protect | |
732 | * test-and-set access to various attributes of the structure as well | |
733 | * as all sc_list operations. | |
734 | */ | |
735 | spinlock_t lock; | |
e68d2971 S |
736 | /* |
737 | * All Sub-channels of a primary channel are linked here. | |
738 | */ | |
739 | struct list_head sc_list; | |
fea844a2 VK |
740 | /* |
741 | * Current number of sub-channels. | |
742 | */ | |
743 | int num_sc; | |
744 | /* | |
745 | * Number of a sub-channel (position within sc_list) which is supposed | |
746 | * to be used as the next outgoing channel. | |
747 | */ | |
748 | int next_oc; | |
e68d2971 S |
749 | /* |
750 | * The primary channel this sub-channel belongs to. | |
751 | * This will be NULL for the primary channel. | |
752 | */ | |
753 | struct vmbus_channel *primary_channel; | |
8a7206a8 S |
754 | /* |
755 | * Support per-channel state for use by vmbus drivers. | |
756 | */ | |
757 | void *per_channel_state; | |
3a28fa35 S |
758 | /* |
759 | * To support per-cpu lookup mapping of relid to channel, | |
760 | * link up channels based on their CPU affinity. | |
761 | */ | |
762 | struct list_head percpu_list; | |
8599846d S |
763 | /* |
764 | * Host signaling policy: The default policy will be | |
765 | * based on the ring buffer state. We will also support | |
766 | * a policy where the client driver can have explicit | |
767 | * signaling control. | |
768 | */ | |
769 | enum hv_signal_policy signal_policy; | |
7d7c75cd | 770 | }; |
b56dda06 | 771 | |
8599846d S |
772 | static inline void set_channel_signal_state(struct vmbus_channel *c, |
773 | enum hv_signal_policy policy) | |
774 | { | |
775 | c->signal_policy = policy; | |
776 | } | |
777 | ||
132368bd S |
778 | static inline void set_channel_read_state(struct vmbus_channel *c, bool state) |
779 | { | |
780 | c->batched_reading = state; | |
781 | } | |
782 | ||
8a7206a8 S |
783 | static inline void set_per_channel_state(struct vmbus_channel *c, void *s) |
784 | { | |
785 | c->per_channel_state = s; | |
786 | } | |
787 | ||
788 | static inline void *get_per_channel_state(struct vmbus_channel *c) | |
789 | { | |
790 | return c->per_channel_state; | |
791 | } | |
792 | ||
b56dda06 S |
793 | void vmbus_onmessage(void *context); |
794 | ||
795 | int vmbus_request_offers(void); | |
796 | ||
e68d2971 S |
797 | /* |
798 | * APIs for managing sub-channels. | |
799 | */ | |
800 | ||
801 | void vmbus_set_sc_create_callback(struct vmbus_channel *primary_channel, | |
802 | void (*sc_cr_cb)(struct vmbus_channel *new_sc)); | |
803 | ||
804 | /* | |
805 | * Retrieve the (sub) channel on which to send an outgoing request. | |
806 | * When a primary channel has multiple sub-channels, we choose a | |
807 | * channel whose VCPU binding is closest to the VCPU on which | |
808 | * this call is being made. | |
809 | */ | |
810 | struct vmbus_channel *vmbus_get_outgoing_channel(struct vmbus_channel *primary); | |
811 | ||
812 | /* | |
813 | * Check if sub-channels have already been offerred. This API will be useful | |
814 | * when the driver is unloaded after establishing sub-channels. In this case, | |
815 | * when the driver is re-loaded, the driver would have to check if the | |
816 | * subchannels have already been established before attempting to request | |
817 | * the creation of sub-channels. | |
818 | * This function returns TRUE to indicate that subchannels have already been | |
819 | * created. | |
820 | * This function should be invoked after setting the callback function for | |
821 | * sub-channel creation. | |
822 | */ | |
823 | bool vmbus_are_subchannels_present(struct vmbus_channel *primary); | |
824 | ||
c35470b2 S |
825 | /* The format must be the same as struct vmdata_gpa_direct */ |
826 | struct vmbus_channel_packet_page_buffer { | |
827 | u16 type; | |
828 | u16 dataoffset8; | |
829 | u16 length8; | |
830 | u16 flags; | |
831 | u64 transactionid; | |
832 | u32 reserved; | |
833 | u32 rangecount; | |
834 | struct hv_page_buffer range[MAX_PAGE_BUFFER_COUNT]; | |
835 | } __packed; | |
836 | ||
837 | /* The format must be the same as struct vmdata_gpa_direct */ | |
838 | struct vmbus_channel_packet_multipage_buffer { | |
839 | u16 type; | |
840 | u16 dataoffset8; | |
841 | u16 length8; | |
842 | u16 flags; | |
843 | u64 transactionid; | |
844 | u32 reserved; | |
845 | u32 rangecount; /* Always 1 in this case */ | |
846 | struct hv_multipage_buffer range; | |
847 | } __packed; | |
848 | ||
d61031ee S |
849 | /* The format must be the same as struct vmdata_gpa_direct */ |
850 | struct vmbus_packet_mpb_array { | |
851 | u16 type; | |
852 | u16 dataoffset8; | |
853 | u16 length8; | |
854 | u16 flags; | |
855 | u64 transactionid; | |
856 | u32 reserved; | |
857 | u32 rangecount; /* Always 1 in this case */ | |
858 | struct hv_mpb_array range; | |
859 | } __packed; | |
860 | ||
c35470b2 S |
861 | |
862 | extern int vmbus_open(struct vmbus_channel *channel, | |
863 | u32 send_ringbuffersize, | |
864 | u32 recv_ringbuffersize, | |
865 | void *userdata, | |
866 | u32 userdatalen, | |
867 | void(*onchannel_callback)(void *context), | |
868 | void *context); | |
869 | ||
870 | extern void vmbus_close(struct vmbus_channel *channel); | |
871 | ||
872 | extern int vmbus_sendpacket(struct vmbus_channel *channel, | |
011a7c3c | 873 | void *buffer, |
c35470b2 S |
874 | u32 bufferLen, |
875 | u64 requestid, | |
876 | enum vmbus_packet_type type, | |
877 | u32 flags); | |
878 | ||
e9395e3f S |
879 | extern int vmbus_sendpacket_ctl(struct vmbus_channel *channel, |
880 | void *buffer, | |
881 | u32 bufferLen, | |
882 | u64 requestid, | |
883 | enum vmbus_packet_type type, | |
884 | u32 flags, | |
885 | bool kick_q); | |
886 | ||
c35470b2 S |
887 | extern int vmbus_sendpacket_pagebuffer(struct vmbus_channel *channel, |
888 | struct hv_page_buffer pagebuffers[], | |
889 | u32 pagecount, | |
890 | void *buffer, | |
891 | u32 bufferlen, | |
892 | u64 requestid); | |
893 | ||
87e93d61 S |
894 | extern int vmbus_sendpacket_pagebuffer_ctl(struct vmbus_channel *channel, |
895 | struct hv_page_buffer pagebuffers[], | |
896 | u32 pagecount, | |
897 | void *buffer, | |
898 | u32 bufferlen, | |
899 | u64 requestid, | |
900 | u32 flags, | |
901 | bool kick_q); | |
902 | ||
c35470b2 S |
903 | extern int vmbus_sendpacket_multipagebuffer(struct vmbus_channel *channel, |
904 | struct hv_multipage_buffer *mpb, | |
905 | void *buffer, | |
906 | u32 bufferlen, | |
907 | u64 requestid); | |
908 | ||
d61031ee S |
909 | extern int vmbus_sendpacket_mpb_desc(struct vmbus_channel *channel, |
910 | struct vmbus_packet_mpb_array *mpb, | |
911 | u32 desc_size, | |
912 | void *buffer, | |
913 | u32 bufferlen, | |
914 | u64 requestid); | |
915 | ||
c35470b2 S |
916 | extern int vmbus_establish_gpadl(struct vmbus_channel *channel, |
917 | void *kbuffer, | |
918 | u32 size, | |
919 | u32 *gpadl_handle); | |
920 | ||
921 | extern int vmbus_teardown_gpadl(struct vmbus_channel *channel, | |
922 | u32 gpadl_handle); | |
923 | ||
924 | extern int vmbus_recvpacket(struct vmbus_channel *channel, | |
925 | void *buffer, | |
926 | u32 bufferlen, | |
927 | u32 *buffer_actual_len, | |
928 | u64 *requestid); | |
929 | ||
930 | extern int vmbus_recvpacket_raw(struct vmbus_channel *channel, | |
931 | void *buffer, | |
932 | u32 bufferlen, | |
933 | u32 *buffer_actual_len, | |
934 | u64 *requestid); | |
935 | ||
c35470b2 | 936 | |
c35470b2 S |
937 | extern void vmbus_ontimer(unsigned long data); |
938 | ||
35ea09c3 S |
939 | /* Base driver object */ |
940 | struct hv_driver { | |
941 | const char *name; | |
942 | ||
943 | /* the device type supported by this driver */ | |
358d2ee2 | 944 | uuid_le dev_type; |
2e2c1d17 | 945 | const struct hv_vmbus_device_id *id_table; |
35ea09c3 S |
946 | |
947 | struct device_driver driver; | |
948 | ||
84946899 | 949 | int (*probe)(struct hv_device *, const struct hv_vmbus_device_id *); |
35ea09c3 S |
950 | int (*remove)(struct hv_device *); |
951 | void (*shutdown)(struct hv_device *); | |
952 | ||
953 | }; | |
954 | ||
955 | /* Base device object */ | |
956 | struct hv_device { | |
957 | /* the device type id of this device */ | |
358d2ee2 | 958 | uuid_le dev_type; |
35ea09c3 S |
959 | |
960 | /* the device instance id of this device */ | |
358d2ee2 | 961 | uuid_le dev_instance; |
35ea09c3 S |
962 | |
963 | struct device device; | |
964 | ||
965 | struct vmbus_channel *channel; | |
35ea09c3 S |
966 | }; |
967 | ||
27b5b3ca S |
968 | |
969 | static inline struct hv_device *device_to_hv_device(struct device *d) | |
970 | { | |
971 | return container_of(d, struct hv_device, device); | |
972 | } | |
973 | ||
974 | static inline struct hv_driver *drv_to_hv_drv(struct device_driver *d) | |
975 | { | |
976 | return container_of(d, struct hv_driver, driver); | |
977 | } | |
978 | ||
ab101e86 S |
979 | static inline void hv_set_drvdata(struct hv_device *dev, void *data) |
980 | { | |
981 | dev_set_drvdata(&dev->device, data); | |
982 | } | |
983 | ||
984 | static inline void *hv_get_drvdata(struct hv_device *dev) | |
985 | { | |
986 | return dev_get_drvdata(&dev->device); | |
987 | } | |
27b5b3ca S |
988 | |
989 | /* Vmbus interface */ | |
768fa219 GKH |
990 | #define vmbus_driver_register(driver) \ |
991 | __vmbus_driver_register(driver, THIS_MODULE, KBUILD_MODNAME) | |
992 | int __must_check __vmbus_driver_register(struct hv_driver *hv_driver, | |
993 | struct module *owner, | |
994 | const char *mod_name); | |
995 | void vmbus_driver_unregister(struct hv_driver *hv_driver); | |
27b5b3ca | 996 | |
35464483 JO |
997 | int vmbus_allocate_mmio(struct resource **new, struct hv_device *device_obj, |
998 | resource_size_t min, resource_size_t max, | |
999 | resource_size_t size, resource_size_t align, | |
1000 | bool fb_overlap_ok); | |
1001 | ||
619848bd | 1002 | int vmbus_cpu_number_to_vp_number(int cpu_number); |
a108393d | 1003 | u64 hv_do_hypercall(u64 control, void *input, void *output); |
619848bd | 1004 | |
7fb96565 S |
1005 | /* |
1006 | * GUID definitions of various offer types - services offered to the guest. | |
1007 | */ | |
1008 | ||
1009 | /* | |
1010 | * Network GUID | |
1011 | * {f8615163-df3e-46c5-913f-f2d2f965ed0e} | |
1012 | */ | |
1013 | #define HV_NIC_GUID \ | |
af3ff643 S |
1014 | .guid = UUID_LE(0xf8615163, 0xdf3e, 0x46c5, 0x91, 0x3f, \ |
1015 | 0xf2, 0xd2, 0xf9, 0x65, 0xed, 0x0e) | |
7fb96565 S |
1016 | |
1017 | /* | |
1018 | * IDE GUID | |
1019 | * {32412632-86cb-44a2-9b5c-50d1417354f5} | |
1020 | */ | |
1021 | #define HV_IDE_GUID \ | |
af3ff643 S |
1022 | .guid = UUID_LE(0x32412632, 0x86cb, 0x44a2, 0x9b, 0x5c, \ |
1023 | 0x50, 0xd1, 0x41, 0x73, 0x54, 0xf5) | |
7fb96565 S |
1024 | |
1025 | /* | |
1026 | * SCSI GUID | |
1027 | * {ba6163d9-04a1-4d29-b605-72e2ffb1dc7f} | |
1028 | */ | |
1029 | #define HV_SCSI_GUID \ | |
af3ff643 S |
1030 | .guid = UUID_LE(0xba6163d9, 0x04a1, 0x4d29, 0xb6, 0x05, \ |
1031 | 0x72, 0xe2, 0xff, 0xb1, 0xdc, 0x7f) | |
7fb96565 S |
1032 | |
1033 | /* | |
1034 | * Shutdown GUID | |
1035 | * {0e0b6031-5213-4934-818b-38d90ced39db} | |
1036 | */ | |
1037 | #define HV_SHUTDOWN_GUID \ | |
af3ff643 S |
1038 | .guid = UUID_LE(0x0e0b6031, 0x5213, 0x4934, 0x81, 0x8b, \ |
1039 | 0x38, 0xd9, 0x0c, 0xed, 0x39, 0xdb) | |
7fb96565 S |
1040 | |
1041 | /* | |
1042 | * Time Synch GUID | |
1043 | * {9527E630-D0AE-497b-ADCE-E80AB0175CAF} | |
1044 | */ | |
1045 | #define HV_TS_GUID \ | |
af3ff643 S |
1046 | .guid = UUID_LE(0x9527e630, 0xd0ae, 0x497b, 0xad, 0xce, \ |
1047 | 0xe8, 0x0a, 0xb0, 0x17, 0x5c, 0xaf) | |
7fb96565 S |
1048 | |
1049 | /* | |
1050 | * Heartbeat GUID | |
1051 | * {57164f39-9115-4e78-ab55-382f3bd5422d} | |
1052 | */ | |
1053 | #define HV_HEART_BEAT_GUID \ | |
af3ff643 S |
1054 | .guid = UUID_LE(0x57164f39, 0x9115, 0x4e78, 0xab, 0x55, \ |
1055 | 0x38, 0x2f, 0x3b, 0xd5, 0x42, 0x2d) | |
7fb96565 S |
1056 | |
1057 | /* | |
1058 | * KVP GUID | |
1059 | * {a9a0f4e7-5a45-4d96-b827-8a841e8c03e6} | |
1060 | */ | |
1061 | #define HV_KVP_GUID \ | |
af3ff643 S |
1062 | .guid = UUID_LE(0xa9a0f4e7, 0x5a45, 0x4d96, 0xb8, 0x27, \ |
1063 | 0x8a, 0x84, 0x1e, 0x8c, 0x03, 0xe6) | |
7fb96565 S |
1064 | |
1065 | /* | |
1066 | * Dynamic memory GUID | |
1067 | * {525074dc-8985-46e2-8057-a307dc18a502} | |
1068 | */ | |
1069 | #define HV_DM_GUID \ | |
af3ff643 S |
1070 | .guid = UUID_LE(0x525074dc, 0x8985, 0x46e2, 0x80, 0x57, \ |
1071 | 0xa3, 0x07, 0xdc, 0x18, 0xa5, 0x02) | |
7fb96565 S |
1072 | |
1073 | /* | |
1074 | * Mouse GUID | |
1075 | * {cfa8b69e-5b4a-4cc0-b98b-8ba1a1f3f95a} | |
1076 | */ | |
1077 | #define HV_MOUSE_GUID \ | |
af3ff643 S |
1078 | .guid = UUID_LE(0xcfa8b69e, 0x5b4a, 0x4cc0, 0xb9, 0x8b, \ |
1079 | 0x8b, 0xa1, 0xa1, 0xf3, 0xf9, 0x5a) | |
7fb96565 | 1080 | |
2048157a DC |
1081 | /* |
1082 | * Keyboard GUID | |
1083 | * {f912ad6d-2b17-48ea-bd65-f927a61c7684} | |
1084 | */ | |
1085 | #define HV_KBD_GUID \ | |
1086 | .guid = UUID_LE(0xf912ad6d, 0x2b17, 0x48ea, 0xbd, 0x65, \ | |
1087 | 0xf9, 0x27, 0xa6, 0x1c, 0x76, 0x84) | |
1088 | ||
96dd86fa S |
1089 | /* |
1090 | * VSS (Backup/Restore) GUID | |
1091 | */ | |
1092 | #define HV_VSS_GUID \ | |
af3ff643 S |
1093 | .guid = UUID_LE(0x35fa2e29, 0xea23, 0x4236, 0x96, 0xae, \ |
1094 | 0x3a, 0x6e, 0xba, 0xcb, 0xa4, 0x40) | |
68a2d20b HZ |
1095 | /* |
1096 | * Synthetic Video GUID | |
1097 | * {DA0A7802-E377-4aac-8E77-0558EB1073F8} | |
1098 | */ | |
1099 | #define HV_SYNTHVID_GUID \ | |
af3ff643 S |
1100 | .guid = UUID_LE(0xda0a7802, 0xe377, 0x4aac, 0x8e, 0x77, \ |
1101 | 0x05, 0x58, 0xeb, 0x10, 0x73, 0xf8) | |
68a2d20b | 1102 | |
98b80d89 S |
1103 | /* |
1104 | * Synthetic FC GUID | |
1105 | * {2f9bcc4a-0069-4af3-b76b-6fd0be528cda} | |
1106 | */ | |
1107 | #define HV_SYNTHFC_GUID \ | |
af3ff643 S |
1108 | .guid = UUID_LE(0x2f9bcc4a, 0x0069, 0x4af3, 0xb7, 0x6b, \ |
1109 | 0x6f, 0xd0, 0xbe, 0x52, 0x8c, 0xda) | |
98b80d89 | 1110 | |
01325476 S |
1111 | /* |
1112 | * Guest File Copy Service | |
1113 | * {34D14BE3-DEE4-41c8-9AE7-6B174977C192} | |
1114 | */ | |
1115 | ||
1116 | #define HV_FCOPY_GUID \ | |
af3ff643 S |
1117 | .guid = UUID_LE(0x34d14be3, 0xdee4, 0x41c8, 0x9a, 0xe7, \ |
1118 | 0x6b, 0x17, 0x49, 0x77, 0xc1, 0x92) | |
01325476 | 1119 | |
04653a00 S |
1120 | /* |
1121 | * NetworkDirect. This is the guest RDMA service. | |
1122 | * {8c2eaf3d-32a7-4b09-ab99-bd1f1c86b501} | |
1123 | */ | |
1124 | #define HV_ND_GUID \ | |
af3ff643 S |
1125 | .guid = UUID_LE(0x8c2eaf3d, 0x32a7, 0x4b09, 0xab, 0x99, \ |
1126 | 0xbd, 0x1f, 0x1c, 0x86, 0xb5, 0x01) | |
04653a00 | 1127 | |
3053c762 JO |
1128 | /* |
1129 | * PCI Express Pass Through | |
1130 | * {44C4F61D-4444-4400-9D52-802E27EDE19F} | |
1131 | */ | |
1132 | ||
1133 | #define HV_PCIE_GUID \ | |
af3ff643 S |
1134 | .guid = UUID_LE(0x44c4f61d, 0x4444, 0x4400, 0x9d, 0x52, \ |
1135 | 0x80, 0x2e, 0x27, 0xed, 0xe1, 0x9f) | |
3053c762 | 1136 | |
b189702d S |
1137 | /* |
1138 | * Common header for Hyper-V ICs | |
1139 | */ | |
1140 | ||
1141 | #define ICMSGTYPE_NEGOTIATE 0 | |
1142 | #define ICMSGTYPE_HEARTBEAT 1 | |
1143 | #define ICMSGTYPE_KVPEXCHANGE 2 | |
1144 | #define ICMSGTYPE_SHUTDOWN 3 | |
1145 | #define ICMSGTYPE_TIMESYNC 4 | |
1146 | #define ICMSGTYPE_VSS 5 | |
1147 | ||
1148 | #define ICMSGHDRFLAG_TRANSACTION 1 | |
1149 | #define ICMSGHDRFLAG_REQUEST 2 | |
1150 | #define ICMSGHDRFLAG_RESPONSE 4 | |
1151 | ||
b189702d | 1152 | |
a29b643c S |
1153 | /* |
1154 | * While we want to handle util services as regular devices, | |
1155 | * there is only one instance of each of these services; so | |
1156 | * we statically allocate the service specific state. | |
1157 | */ | |
1158 | ||
1159 | struct hv_util_service { | |
1160 | u8 *recv_buffer; | |
1161 | void (*util_cb)(void *); | |
1162 | int (*util_init)(struct hv_util_service *); | |
1163 | void (*util_deinit)(void); | |
1164 | }; | |
1165 | ||
b189702d S |
1166 | struct vmbuspipe_hdr { |
1167 | u32 flags; | |
1168 | u32 msgsize; | |
1169 | } __packed; | |
1170 | ||
1171 | struct ic_version { | |
1172 | u16 major; | |
1173 | u16 minor; | |
1174 | } __packed; | |
1175 | ||
1176 | struct icmsg_hdr { | |
1177 | struct ic_version icverframe; | |
1178 | u16 icmsgtype; | |
1179 | struct ic_version icvermsg; | |
1180 | u16 icmsgsize; | |
1181 | u32 status; | |
1182 | u8 ictransaction_id; | |
1183 | u8 icflags; | |
1184 | u8 reserved[2]; | |
1185 | } __packed; | |
1186 | ||
1187 | struct icmsg_negotiate { | |
1188 | u16 icframe_vercnt; | |
1189 | u16 icmsg_vercnt; | |
1190 | u32 reserved; | |
1191 | struct ic_version icversion_data[1]; /* any size array */ | |
1192 | } __packed; | |
1193 | ||
1194 | struct shutdown_msg_data { | |
1195 | u32 reason_code; | |
1196 | u32 timeout_seconds; | |
1197 | u32 flags; | |
1198 | u8 display_message[2048]; | |
1199 | } __packed; | |
1200 | ||
1201 | struct heartbeat_msg_data { | |
1202 | u64 seq_num; | |
1203 | u32 reserved[8]; | |
1204 | } __packed; | |
1205 | ||
1206 | /* Time Sync IC defs */ | |
1207 | #define ICTIMESYNCFLAG_PROBE 0 | |
1208 | #define ICTIMESYNCFLAG_SYNC 1 | |
1209 | #define ICTIMESYNCFLAG_SAMPLE 2 | |
1210 | ||
1211 | #ifdef __x86_64__ | |
1212 | #define WLTIMEDELTA 116444736000000000L /* in 100ns unit */ | |
1213 | #else | |
1214 | #define WLTIMEDELTA 116444736000000000LL | |
1215 | #endif | |
1216 | ||
1217 | struct ictimesync_data { | |
1218 | u64 parenttime; | |
1219 | u64 childtime; | |
1220 | u64 roundtriptime; | |
1221 | u8 flags; | |
1222 | } __packed; | |
1223 | ||
b189702d S |
1224 | struct hyperv_service_callback { |
1225 | u8 msg_type; | |
1226 | char *log_msg; | |
358d2ee2 | 1227 | uuid_le data; |
b189702d S |
1228 | struct vmbus_channel *channel; |
1229 | void (*callback) (void *context); | |
1230 | }; | |
1231 | ||
c836d0ab | 1232 | #define MAX_SRV_VER 0x7ffffff |
6741335b | 1233 | extern bool vmbus_prep_negotiate_resp(struct icmsg_hdr *, |
c836d0ab S |
1234 | struct icmsg_negotiate *, u8 *, int, |
1235 | int); | |
b189702d | 1236 | |
ed6cfcc5 | 1237 | void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid); |
96dd86fa | 1238 | |
37f7278b S |
1239 | /* |
1240 | * Negotiated version with the Host. | |
1241 | */ | |
1242 | ||
1243 | extern __u32 vmbus_proto_version; | |
1244 | ||
3f335ea2 | 1245 | #endif /* _HYPERV_H */ |