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25#ifndef _HYPERV_H
26#define _HYPERV_H
27
28#include <uapi/linux/hyperv.h>
29#include <uapi/asm/hyperv.h>
30
31#include <linux/types.h>
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>
38#include <linux/mod_devicetable.h>
39
40
41#define MAX_PAGE_BUFFER_COUNT 32
42#define MAX_MULTIPAGE_BUFFER_COUNT 32
43
44#pragma pack(push, 1)
45
46
47struct hv_page_buffer {
48 u32 len;
49 u32 offset;
50 u64 pfn;
51};
52
53
54struct hv_multipage_buffer {
55
56 u32 len;
57 u32 offset;
58 u64 pfn_array[MAX_MULTIPAGE_BUFFER_COUNT];
59};
60
61
62
63
64
65
66struct hv_mpb_array {
67
68 u32 len;
69 u32 offset;
70 u64 pfn_array[];
71};
72
73
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
83struct hv_ring_buffer {
84
85 u32 write_index;
86
87
88 u32 read_index;
89
90 u32 interrupt_mask;
91
92
93
94
95
96
97
98
99
100
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
113 u8 reserved2[4028];
114
115
116
117
118
119 u8 buffer[0];
120} __packed;
121
122struct hv_ring_buffer_info {
123 struct hv_ring_buffer *ring_buffer;
124 u32 ring_size;
125 spinlock_t ring_lock;
126
127 u32 ring_datasize;
128 u32 ring_data_startoffset;
129};
130
131
132
133
134
135
136
137
138static inline void
139hv_get_ringbuffer_availbytes(struct hv_ring_buffer_info *rbi,
140 u32 *read, u32 *write)
141{
142 u32 read_loc, write_loc, dsize;
143
144
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
154
155
156
157
158
159
160
161
162
163
164
165#define VERSION_WS2008 ((0 << 16) | (13))
166#define VERSION_WIN7 ((1 << 16) | (1))
167#define VERSION_WIN8 ((2 << 16) | (4))
168#define VERSION_WIN8_1 ((3 << 16) | (0))
169#define VERSION_WIN10 ((4 << 16) | (0))
170
171#define VERSION_INVAL -1
172
173#define VERSION_CURRENT VERSION_WIN10
174
175
176#define MAX_PIPE_DATA_PAYLOAD (sizeof(u8) * 16384)
177
178
179#define VMBUS_PIPE_TYPE_BYTE 0x00000000
180#define VMBUS_PIPE_TYPE_MESSAGE 0x00000004
181
182
183#define MAX_USER_DEFINED_BYTES 120
184
185
186#define MAX_PIPE_USER_DEFINED_BYTES 116
187
188
189
190
191
192struct vmbus_channel_offer {
193 uuid_le if_type;
194 uuid_le if_instance;
195
196
197
198
199 u64 reserved1;
200 u64 reserved2;
201
202 u16 chn_flags;
203 u16 mmio_megabytes;
204
205 union {
206
207 struct {
208 unsigned char user_def[MAX_USER_DEFINED_BYTES];
209 } std;
210
211
212
213
214
215
216
217
218 struct {
219 u32 pipe_mode;
220 unsigned char user_def[MAX_PIPE_USER_DEFINED_BYTES];
221 } pipe;
222 } u;
223
224
225
226 u16 sub_channel_index;
227 u16 reserved3;
228} __packed;
229
230
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#define VMBUS_CHANNEL_TLNPI_PROVIDER_OFFER 0x2000
239
240struct vmpacket_descriptor {
241 u16 type;
242 u16 offset8;
243 u16 len8;
244 u16 flags;
245 u64 trans_id;
246} __packed;
247
248struct vmpacket_header {
249 u32 prev_pkt_start_offset;
250 struct vmpacket_descriptor descriptor;
251} __packed;
252
253struct vmtransfer_page_range {
254 u32 byte_count;
255 u32 byte_offset;
256} __packed;
257
258struct vmtransfer_page_packet_header {
259 struct vmpacket_descriptor d;
260 u16 xfer_pageset_id;
261 u8 sender_owns_set;
262 u8 reserved;
263 u32 range_cnt;
264 struct vmtransfer_page_range ranges[1];
265} __packed;
266
267struct vmgpadl_packet_header {
268 struct vmpacket_descriptor d;
269 u32 gpadl;
270 u32 reserved;
271} __packed;
272
273struct vmadd_remove_transfer_page_set {
274 struct vmpacket_descriptor d;
275 u32 gpadl;
276 u16 xfer_pageset_id;
277 u16 reserved;
278} __packed;
279
280
281
282
283
284struct gpa_range {
285 u32 byte_count;
286 u32 byte_offset;
287 u64 pfn_array[0];
288};
289
290
291
292
293
294
295
296
297struct vmestablish_gpadl {
298 struct vmpacket_descriptor d;
299 u32 gpadl;
300 u32 range_cnt;
301 struct gpa_range range[1];
302} __packed;
303
304
305
306
307
308struct vmteardown_gpadl {
309 struct vmpacket_descriptor d;
310 u32 gpadl;
311 u32 reserved;
312} __packed;
313
314
315
316
317
318struct vmdata_gpa_direct {
319 struct vmpacket_descriptor d;
320 u32 reserved;
321 u32 range_cnt;
322 struct gpa_range range[1];
323} __packed;
324
325
326struct vmadditional_data {
327 struct vmpacket_descriptor d;
328 u64 total_bytes;
329 u32 offset;
330 u32 byte_cnt;
331 unsigned char data[1];
332} __packed;
333
334union vmpacket_largest_possible_header {
335 struct vmpacket_descriptor simple_hdr;
336 struct vmtransfer_page_packet_header xfer_page_hdr;
337 struct vmgpadl_packet_header gpadl_hdr;
338 struct vmadd_remove_transfer_page_set add_rm_xfer_page_hdr;
339 struct vmestablish_gpadl establish_gpadl_hdr;
340 struct vmteardown_gpadl teardown_gpadl_hdr;
341 struct vmdata_gpa_direct data_gpa_direct_hdr;
342};
343
344#define VMPACKET_DATA_START_ADDRESS(__packet) \
345 (void *)(((unsigned char *)__packet) + \
346 ((struct vmpacket_descriptor)__packet)->offset8 * 8)
347
348#define VMPACKET_DATA_LENGTH(__packet) \
349 ((((struct vmpacket_descriptor)__packet)->len8 - \
350 ((struct vmpacket_descriptor)__packet)->offset8) * 8)
351
352#define VMPACKET_TRANSFER_MODE(__packet) \
353 (((struct IMPACT)__packet)->type)
354
355enum vmbus_packet_type {
356 VM_PKT_INVALID = 0x0,
357 VM_PKT_SYNCH = 0x1,
358 VM_PKT_ADD_XFER_PAGESET = 0x2,
359 VM_PKT_RM_XFER_PAGESET = 0x3,
360 VM_PKT_ESTABLISH_GPADL = 0x4,
361 VM_PKT_TEARDOWN_GPADL = 0x5,
362 VM_PKT_DATA_INBAND = 0x6,
363 VM_PKT_DATA_USING_XFER_PAGES = 0x7,
364 VM_PKT_DATA_USING_GPADL = 0x8,
365 VM_PKT_DATA_USING_GPA_DIRECT = 0x9,
366 VM_PKT_CANCEL_REQUEST = 0xa,
367 VM_PKT_COMP = 0xb,
368 VM_PKT_DATA_USING_ADDITIONAL_PKT = 0xc,
369 VM_PKT_ADDITIONAL_DATA = 0xd
370};
371
372#define VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED 1
373
374
375
376enum vmbus_channel_message_type {
377 CHANNELMSG_INVALID = 0,
378 CHANNELMSG_OFFERCHANNEL = 1,
379 CHANNELMSG_RESCIND_CHANNELOFFER = 2,
380 CHANNELMSG_REQUESTOFFERS = 3,
381 CHANNELMSG_ALLOFFERS_DELIVERED = 4,
382 CHANNELMSG_OPENCHANNEL = 5,
383 CHANNELMSG_OPENCHANNEL_RESULT = 6,
384 CHANNELMSG_CLOSECHANNEL = 7,
385 CHANNELMSG_GPADL_HEADER = 8,
386 CHANNELMSG_GPADL_BODY = 9,
387 CHANNELMSG_GPADL_CREATED = 10,
388 CHANNELMSG_GPADL_TEARDOWN = 11,
389 CHANNELMSG_GPADL_TORNDOWN = 12,
390 CHANNELMSG_RELID_RELEASED = 13,
391 CHANNELMSG_INITIATE_CONTACT = 14,
392 CHANNELMSG_VERSION_RESPONSE = 15,
393 CHANNELMSG_UNLOAD = 16,
394 CHANNELMSG_UNLOAD_RESPONSE = 17,
395 CHANNELMSG_18 = 18,
396 CHANNELMSG_19 = 19,
397 CHANNELMSG_20 = 20,
398 CHANNELMSG_TL_CONNECT_REQUEST = 21,
399 CHANNELMSG_COUNT
400};
401
402struct vmbus_channel_message_header {
403 enum vmbus_channel_message_type msgtype;
404 u32 padding;
405} __packed;
406
407
408struct vmbus_channel_query_vmbus_version {
409 struct vmbus_channel_message_header header;
410 u32 version;
411} __packed;
412
413
414struct vmbus_channel_version_supported {
415 struct vmbus_channel_message_header header;
416 u8 version_supported;
417} __packed;
418
419
420struct vmbus_channel_offer_channel {
421 struct vmbus_channel_message_header header;
422 struct vmbus_channel_offer offer;
423 u32 child_relid;
424 u8 monitorid;
425
426
427
428 u8 monitor_allocated:1;
429 u8 reserved:7;
430
431
432
433
434
435
436
437
438
439
440
441 u16 is_dedicated_interrupt:1;
442 u16 reserved1:15;
443 u32 connection_id;
444} __packed;
445
446
447struct vmbus_channel_rescind_offer {
448 struct vmbus_channel_message_header header;
449 u32 child_relid;
450} __packed;
451
452
453
454
455
456
457
458
459
460
461
462struct vmbus_channel_open_channel {
463 struct vmbus_channel_message_header header;
464
465
466 u32 child_relid;
467
468
469 u32 openid;
470
471
472 u32 ringbuffer_gpadlhandle;
473
474
475
476
477
478
479
480
481
482 u32 target_vp;
483
484
485
486
487
488
489 u32 downstream_ringbuffer_pageoffset;
490
491
492 unsigned char userdata[MAX_USER_DEFINED_BYTES];
493} __packed;
494
495
496struct vmbus_channel_open_result {
497 struct vmbus_channel_message_header header;
498 u32 child_relid;
499 u32 openid;
500 u32 status;
501} __packed;
502
503
504struct vmbus_channel_close_channel {
505 struct vmbus_channel_message_header header;
506 u32 child_relid;
507} __packed;
508
509
510#define GPADL_TYPE_RING_BUFFER 1
511#define GPADL_TYPE_SERVER_SAVE_AREA 2
512#define GPADL_TYPE_TRANSACTION 8
513
514
515
516
517
518
519
520struct vmbus_channel_gpadl_header {
521 struct vmbus_channel_message_header header;
522 u32 child_relid;
523 u32 gpadl;
524 u16 range_buflen;
525 u16 rangecount;
526 struct gpa_range range[0];
527} __packed;
528
529
530struct vmbus_channel_gpadl_body {
531 struct vmbus_channel_message_header header;
532 u32 msgnumber;
533 u32 gpadl;
534 u64 pfn[0];
535} __packed;
536
537struct vmbus_channel_gpadl_created {
538 struct vmbus_channel_message_header header;
539 u32 child_relid;
540 u32 gpadl;
541 u32 creation_status;
542} __packed;
543
544struct vmbus_channel_gpadl_teardown {
545 struct vmbus_channel_message_header header;
546 u32 child_relid;
547 u32 gpadl;
548} __packed;
549
550struct vmbus_channel_gpadl_torndown {
551 struct vmbus_channel_message_header header;
552 u32 gpadl;
553} __packed;
554
555struct vmbus_channel_relid_released {
556 struct vmbus_channel_message_header header;
557 u32 child_relid;
558} __packed;
559
560struct vmbus_channel_initiate_contact {
561 struct vmbus_channel_message_header header;
562 u32 vmbus_version_requested;
563 u32 target_vcpu;
564 u64 interrupt_page;
565 u64 monitor_page1;
566 u64 monitor_page2;
567} __packed;
568
569
570struct vmbus_channel_tl_connect_request {
571 struct vmbus_channel_message_header header;
572 uuid_le guest_endpoint_id;
573 uuid_le host_service_id;
574} __packed;
575
576struct vmbus_channel_version_response {
577 struct vmbus_channel_message_header header;
578 u8 version_supported;
579} __packed;
580
581enum vmbus_channel_state {
582 CHANNEL_OFFER_STATE,
583 CHANNEL_OPENING_STATE,
584 CHANNEL_OPEN_STATE,
585 CHANNEL_OPENED_STATE,
586};
587
588
589
590
591
592struct vmbus_channel_msginfo {
593
594 struct list_head msglistentry;
595
596
597 struct list_head submsglist;
598
599
600 struct completion waitevent;
601 union {
602 struct vmbus_channel_version_supported version_supported;
603 struct vmbus_channel_open_result open_result;
604 struct vmbus_channel_gpadl_torndown gpadl_torndown;
605 struct vmbus_channel_gpadl_created gpadl_created;
606 struct vmbus_channel_version_response version_response;
607 } response;
608
609 u32 msgsize;
610
611
612
613
614 unsigned char msg[0];
615};
616
617struct vmbus_close_msg {
618 struct vmbus_channel_msginfo info;
619 struct vmbus_channel_close_channel msg;
620};
621
622
623union hv_connection_id {
624 u32 asu32;
625 struct {
626 u32 id:24;
627 u32 reserved:8;
628 } u;
629};
630
631
632struct hv_input_signal_event {
633 union hv_connection_id connectionid;
634 u16 flag_number;
635 u16 rsvdz;
636};
637
638struct hv_input_signal_event_buffer {
639 u64 align8;
640 struct hv_input_signal_event event;
641};
642
643enum hv_signal_policy {
644 HV_SIGNAL_POLICY_DEFAULT = 0,
645 HV_SIGNAL_POLICY_EXPLICIT,
646};
647
648enum vmbus_device_type {
649 HV_IDE = 0,
650 HV_SCSI,
651 HV_FC,
652 HV_NIC,
653 HV_ND,
654 HV_PCIE,
655 HV_FB,
656 HV_KBD,
657 HV_MOUSE,
658 HV_KVP,
659 HV_TS,
660 HV_HB,
661 HV_SHUTDOWN,
662 HV_FCOPY,
663 HV_BACKUP,
664 HV_DM,
665 HV_UNKOWN,
666};
667
668struct vmbus_device {
669 u16 dev_type;
670 uuid_le guid;
671 bool perf_device;
672};
673
674struct vmbus_channel {
675
676 int id;
677
678 struct list_head listentry;
679
680 struct hv_device *device_obj;
681
682 enum vmbus_channel_state state;
683
684 struct vmbus_channel_offer_channel offermsg;
685
686
687
688
689 u8 monitor_grp;
690 u8 monitor_bit;
691
692 bool rescind;
693
694 u32 ringbuffer_gpadlhandle;
695
696
697 void *ringbuffer_pages;
698 u32 ringbuffer_pagecount;
699 struct hv_ring_buffer_info outbound;
700 struct hv_ring_buffer_info inbound;
701 spinlock_t inbound_lock;
702
703 struct vmbus_close_msg close_msg;
704
705
706
707
708 void (*onchannel_callback)(void *context);
709 void *channel_callback_context;
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724 bool batched_reading;
725
726 bool is_dedicated_interrupt;
727 struct hv_input_signal_event_buffer sig_buf;
728 struct hv_input_signal_event *sig_event;
729
730
731
732
733
734
735
736
737
738 u32 target_vp;
739
740 u32 target_cpu;
741
742
743
744 struct cpumask alloced_cpus_in_node;
745 int numa_node;
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766 void (*sc_creation_callback)(struct vmbus_channel *new_sc);
767
768
769
770
771
772 void (*chn_rescind_callback)(struct vmbus_channel *channel);
773
774
775
776
777
778
779 spinlock_t lock;
780
781
782
783 struct list_head sc_list;
784
785
786
787 int num_sc;
788
789
790
791
792 int next_oc;
793
794
795
796
797 struct vmbus_channel *primary_channel;
798
799
800
801 void *per_channel_state;
802
803
804
805
806 struct list_head percpu_list;
807
808
809
810
811
812
813 enum hv_signal_policy signal_policy;
814
815
816
817
818
819
820
821
822
823 bool acquire_ring_lock;
824
825};
826
827static inline void set_channel_lock_state(struct vmbus_channel *c, bool state)
828{
829 c->acquire_ring_lock = state;
830}
831
832static inline bool is_hvsock_channel(const struct vmbus_channel *c)
833{
834 return !!(c->offermsg.offer.chn_flags &
835 VMBUS_CHANNEL_TLNPI_PROVIDER_OFFER);
836}
837
838static inline void set_channel_signal_state(struct vmbus_channel *c,
839 enum hv_signal_policy policy)
840{
841 c->signal_policy = policy;
842}
843
844static inline void set_channel_read_state(struct vmbus_channel *c, bool state)
845{
846 c->batched_reading = state;
847}
848
849static inline void set_per_channel_state(struct vmbus_channel *c, void *s)
850{
851 c->per_channel_state = s;
852}
853
854static inline void *get_per_channel_state(struct vmbus_channel *c)
855{
856 return c->per_channel_state;
857}
858
859static inline void set_channel_pending_send_size(struct vmbus_channel *c,
860 u32 size)
861{
862 c->outbound.ring_buffer->pending_send_sz = size;
863}
864
865void vmbus_onmessage(void *context);
866
867int vmbus_request_offers(void);
868
869
870
871
872
873void vmbus_set_sc_create_callback(struct vmbus_channel *primary_channel,
874 void (*sc_cr_cb)(struct vmbus_channel *new_sc));
875
876void vmbus_set_chn_rescind_callback(struct vmbus_channel *channel,
877 void (*chn_rescind_cb)(struct vmbus_channel *));
878
879
880
881
882
883
884
885struct vmbus_channel *vmbus_get_outgoing_channel(struct vmbus_channel *primary);
886
887
888
889
890
891
892
893
894
895
896
897
898bool vmbus_are_subchannels_present(struct vmbus_channel *primary);
899
900
901struct vmbus_channel_packet_page_buffer {
902 u16 type;
903 u16 dataoffset8;
904 u16 length8;
905 u16 flags;
906 u64 transactionid;
907 u32 reserved;
908 u32 rangecount;
909 struct hv_page_buffer range[MAX_PAGE_BUFFER_COUNT];
910} __packed;
911
912
913struct vmbus_channel_packet_multipage_buffer {
914 u16 type;
915 u16 dataoffset8;
916 u16 length8;
917 u16 flags;
918 u64 transactionid;
919 u32 reserved;
920 u32 rangecount;
921 struct hv_multipage_buffer range;
922} __packed;
923
924
925struct vmbus_packet_mpb_array {
926 u16 type;
927 u16 dataoffset8;
928 u16 length8;
929 u16 flags;
930 u64 transactionid;
931 u32 reserved;
932 u32 rangecount;
933 struct hv_mpb_array range;
934} __packed;
935
936
937extern int vmbus_open(struct vmbus_channel *channel,
938 u32 send_ringbuffersize,
939 u32 recv_ringbuffersize,
940 void *userdata,
941 u32 userdatalen,
942 void(*onchannel_callback)(void *context),
943 void *context);
944
945extern void vmbus_close(struct vmbus_channel *channel);
946
947extern int vmbus_sendpacket(struct vmbus_channel *channel,
948 void *buffer,
949 u32 bufferLen,
950 u64 requestid,
951 enum vmbus_packet_type type,
952 u32 flags);
953
954extern int vmbus_sendpacket_ctl(struct vmbus_channel *channel,
955 void *buffer,
956 u32 bufferLen,
957 u64 requestid,
958 enum vmbus_packet_type type,
959 u32 flags,
960 bool kick_q);
961
962extern int vmbus_sendpacket_pagebuffer(struct vmbus_channel *channel,
963 struct hv_page_buffer pagebuffers[],
964 u32 pagecount,
965 void *buffer,
966 u32 bufferlen,
967 u64 requestid);
968
969extern int vmbus_sendpacket_pagebuffer_ctl(struct vmbus_channel *channel,
970 struct hv_page_buffer pagebuffers[],
971 u32 pagecount,
972 void *buffer,
973 u32 bufferlen,
974 u64 requestid,
975 u32 flags,
976 bool kick_q);
977
978extern int vmbus_sendpacket_multipagebuffer(struct vmbus_channel *channel,
979 struct hv_multipage_buffer *mpb,
980 void *buffer,
981 u32 bufferlen,
982 u64 requestid);
983
984extern int vmbus_sendpacket_mpb_desc(struct vmbus_channel *channel,
985 struct vmbus_packet_mpb_array *mpb,
986 u32 desc_size,
987 void *buffer,
988 u32 bufferlen,
989 u64 requestid);
990
991extern int vmbus_establish_gpadl(struct vmbus_channel *channel,
992 void *kbuffer,
993 u32 size,
994 u32 *gpadl_handle);
995
996extern int vmbus_teardown_gpadl(struct vmbus_channel *channel,
997 u32 gpadl_handle);
998
999extern int vmbus_recvpacket(struct vmbus_channel *channel,
1000 void *buffer,
1001 u32 bufferlen,
1002 u32 *buffer_actual_len,
1003 u64 *requestid);
1004
1005extern int vmbus_recvpacket_raw(struct vmbus_channel *channel,
1006 void *buffer,
1007 u32 bufferlen,
1008 u32 *buffer_actual_len,
1009 u64 *requestid);
1010
1011
1012extern void vmbus_ontimer(unsigned long data);
1013
1014
1015struct hv_driver {
1016 const char *name;
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030 bool hvsock;
1031
1032
1033 uuid_le dev_type;
1034 const struct hv_vmbus_device_id *id_table;
1035
1036 struct device_driver driver;
1037
1038 int (*probe)(struct hv_device *, const struct hv_vmbus_device_id *);
1039 int (*remove)(struct hv_device *);
1040 void (*shutdown)(struct hv_device *);
1041
1042};
1043
1044
1045struct hv_device {
1046
1047 uuid_le dev_type;
1048
1049
1050 uuid_le dev_instance;
1051 u16 vendor_id;
1052 u16 device_id;
1053
1054 struct device device;
1055
1056 struct vmbus_channel *channel;
1057};
1058
1059
1060static inline struct hv_device *device_to_hv_device(struct device *d)
1061{
1062 return container_of(d, struct hv_device, device);
1063}
1064
1065static inline struct hv_driver *drv_to_hv_drv(struct device_driver *d)
1066{
1067 return container_of(d, struct hv_driver, driver);
1068}
1069
1070static inline void hv_set_drvdata(struct hv_device *dev, void *data)
1071{
1072 dev_set_drvdata(&dev->device, data);
1073}
1074
1075static inline void *hv_get_drvdata(struct hv_device *dev)
1076{
1077 return dev_get_drvdata(&dev->device);
1078}
1079
1080
1081#define vmbus_driver_register(driver) \
1082 __vmbus_driver_register(driver, THIS_MODULE, KBUILD_MODNAME)
1083int __must_check __vmbus_driver_register(struct hv_driver *hv_driver,
1084 struct module *owner,
1085 const char *mod_name);
1086void vmbus_driver_unregister(struct hv_driver *hv_driver);
1087
1088void vmbus_hvsock_device_unregister(struct vmbus_channel *channel);
1089
1090int vmbus_allocate_mmio(struct resource **new, struct hv_device *device_obj,
1091 resource_size_t min, resource_size_t max,
1092 resource_size_t size, resource_size_t align,
1093 bool fb_overlap_ok);
1094
1095int vmbus_cpu_number_to_vp_number(int cpu_number);
1096u64 hv_do_hypercall(u64 control, void *input, void *output);
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106#define HV_NIC_GUID \
1107 .guid = UUID_LE(0xf8615163, 0xdf3e, 0x46c5, 0x91, 0x3f, \
1108 0xf2, 0xd2, 0xf9, 0x65, 0xed, 0x0e)
1109
1110
1111
1112
1113
1114#define HV_IDE_GUID \
1115 .guid = UUID_LE(0x32412632, 0x86cb, 0x44a2, 0x9b, 0x5c, \
1116 0x50, 0xd1, 0x41, 0x73, 0x54, 0xf5)
1117
1118
1119
1120
1121
1122#define HV_SCSI_GUID \
1123 .guid = UUID_LE(0xba6163d9, 0x04a1, 0x4d29, 0xb6, 0x05, \
1124 0x72, 0xe2, 0xff, 0xb1, 0xdc, 0x7f)
1125
1126
1127
1128
1129
1130#define HV_SHUTDOWN_GUID \
1131 .guid = UUID_LE(0x0e0b6031, 0x5213, 0x4934, 0x81, 0x8b, \
1132 0x38, 0xd9, 0x0c, 0xed, 0x39, 0xdb)
1133
1134
1135
1136
1137
1138#define HV_TS_GUID \
1139 .guid = UUID_LE(0x9527e630, 0xd0ae, 0x497b, 0xad, 0xce, \
1140 0xe8, 0x0a, 0xb0, 0x17, 0x5c, 0xaf)
1141
1142
1143
1144
1145
1146#define HV_HEART_BEAT_GUID \
1147 .guid = UUID_LE(0x57164f39, 0x9115, 0x4e78, 0xab, 0x55, \
1148 0x38, 0x2f, 0x3b, 0xd5, 0x42, 0x2d)
1149
1150
1151
1152
1153
1154#define HV_KVP_GUID \
1155 .guid = UUID_LE(0xa9a0f4e7, 0x5a45, 0x4d96, 0xb8, 0x27, \
1156 0x8a, 0x84, 0x1e, 0x8c, 0x03, 0xe6)
1157
1158
1159
1160
1161
1162#define HV_DM_GUID \
1163 .guid = UUID_LE(0x525074dc, 0x8985, 0x46e2, 0x80, 0x57, \
1164 0xa3, 0x07, 0xdc, 0x18, 0xa5, 0x02)
1165
1166
1167
1168
1169
1170#define HV_MOUSE_GUID \
1171 .guid = UUID_LE(0xcfa8b69e, 0x5b4a, 0x4cc0, 0xb9, 0x8b, \
1172 0x8b, 0xa1, 0xa1, 0xf3, 0xf9, 0x5a)
1173
1174
1175
1176
1177
1178#define HV_KBD_GUID \
1179 .guid = UUID_LE(0xf912ad6d, 0x2b17, 0x48ea, 0xbd, 0x65, \
1180 0xf9, 0x27, 0xa6, 0x1c, 0x76, 0x84)
1181
1182
1183
1184
1185#define HV_VSS_GUID \
1186 .guid = UUID_LE(0x35fa2e29, 0xea23, 0x4236, 0x96, 0xae, \
1187 0x3a, 0x6e, 0xba, 0xcb, 0xa4, 0x40)
1188
1189
1190
1191
1192#define HV_SYNTHVID_GUID \
1193 .guid = UUID_LE(0xda0a7802, 0xe377, 0x4aac, 0x8e, 0x77, \
1194 0x05, 0x58, 0xeb, 0x10, 0x73, 0xf8)
1195
1196
1197
1198
1199
1200#define HV_SYNTHFC_GUID \
1201 .guid = UUID_LE(0x2f9bcc4a, 0x0069, 0x4af3, 0xb7, 0x6b, \
1202 0x6f, 0xd0, 0xbe, 0x52, 0x8c, 0xda)
1203
1204
1205
1206
1207
1208
1209#define HV_FCOPY_GUID \
1210 .guid = UUID_LE(0x34d14be3, 0xdee4, 0x41c8, 0x9a, 0xe7, \
1211 0x6b, 0x17, 0x49, 0x77, 0xc1, 0x92)
1212
1213
1214
1215
1216
1217#define HV_ND_GUID \
1218 .guid = UUID_LE(0x8c2eaf3d, 0x32a7, 0x4b09, 0xab, 0x99, \
1219 0xbd, 0x1f, 0x1c, 0x86, 0xb5, 0x01)
1220
1221
1222
1223
1224
1225
1226#define HV_PCIE_GUID \
1227 .guid = UUID_LE(0x44c4f61d, 0x4444, 0x4400, 0x9d, 0x52, \
1228 0x80, 0x2e, 0x27, 0xed, 0xe1, 0x9f)
1229
1230
1231
1232
1233
1234#define ICMSGTYPE_NEGOTIATE 0
1235#define ICMSGTYPE_HEARTBEAT 1
1236#define ICMSGTYPE_KVPEXCHANGE 2
1237#define ICMSGTYPE_SHUTDOWN 3
1238#define ICMSGTYPE_TIMESYNC 4
1239#define ICMSGTYPE_VSS 5
1240
1241#define ICMSGHDRFLAG_TRANSACTION 1
1242#define ICMSGHDRFLAG_REQUEST 2
1243#define ICMSGHDRFLAG_RESPONSE 4
1244
1245
1246
1247
1248
1249
1250
1251
1252struct hv_util_service {
1253 u8 *recv_buffer;
1254 void *channel;
1255 void (*util_cb)(void *);
1256 int (*util_init)(struct hv_util_service *);
1257 void (*util_deinit)(void);
1258};
1259
1260struct vmbuspipe_hdr {
1261 u32 flags;
1262 u32 msgsize;
1263} __packed;
1264
1265struct ic_version {
1266 u16 major;
1267 u16 minor;
1268} __packed;
1269
1270struct icmsg_hdr {
1271 struct ic_version icverframe;
1272 u16 icmsgtype;
1273 struct ic_version icvermsg;
1274 u16 icmsgsize;
1275 u32 status;
1276 u8 ictransaction_id;
1277 u8 icflags;
1278 u8 reserved[2];
1279} __packed;
1280
1281struct icmsg_negotiate {
1282 u16 icframe_vercnt;
1283 u16 icmsg_vercnt;
1284 u32 reserved;
1285 struct ic_version icversion_data[1];
1286} __packed;
1287
1288struct shutdown_msg_data {
1289 u32 reason_code;
1290 u32 timeout_seconds;
1291 u32 flags;
1292 u8 display_message[2048];
1293} __packed;
1294
1295struct heartbeat_msg_data {
1296 u64 seq_num;
1297 u32 reserved[8];
1298} __packed;
1299
1300
1301#define ICTIMESYNCFLAG_PROBE 0
1302#define ICTIMESYNCFLAG_SYNC 1
1303#define ICTIMESYNCFLAG_SAMPLE 2
1304
1305#ifdef __x86_64__
1306#define WLTIMEDELTA 116444736000000000L
1307#else
1308#define WLTIMEDELTA 116444736000000000LL
1309#endif
1310
1311struct ictimesync_data {
1312 u64 parenttime;
1313 u64 childtime;
1314 u64 roundtriptime;
1315 u8 flags;
1316} __packed;
1317
1318struct hyperv_service_callback {
1319 u8 msg_type;
1320 char *log_msg;
1321 uuid_le data;
1322 struct vmbus_channel *channel;
1323 void (*callback) (void *context);
1324};
1325
1326#define MAX_SRV_VER 0x7ffffff
1327extern bool vmbus_prep_negotiate_resp(struct icmsg_hdr *,
1328 struct icmsg_negotiate *, u8 *, int,
1329 int);
1330
1331void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid);
1332
1333
1334
1335
1336
1337extern __u32 vmbus_proto_version;
1338
1339int vmbus_send_tl_connect_request(const uuid_le *shv_guest_servie_id,
1340 const uuid_le *shv_host_servie_id);
1341#endif
1342