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16#include "hw/virtio/virtio-scsi.h"
17#include "qemu/error-report.h"
18#include <hw/scsi/scsi.h>
19#include <block/scsi.h>
20#include <hw/virtio/virtio-bus.h>
21
22typedef struct VirtIOSCSIReq {
23 VirtIOSCSI *dev;
24 VirtQueue *vq;
25 VirtQueueElement elem;
26 QEMUSGList qsgl;
27 SCSIRequest *sreq;
28 union {
29 char *buf;
30 VirtIOSCSICmdReq *cmd;
31 VirtIOSCSICtrlTMFReq *tmf;
32 VirtIOSCSICtrlANReq *an;
33 } req;
34 union {
35 char *buf;
36 VirtIOSCSICmdResp *cmd;
37 VirtIOSCSICtrlTMFResp *tmf;
38 VirtIOSCSICtrlANResp *an;
39 VirtIOSCSIEvent *event;
40 } resp;
41} VirtIOSCSIReq;
42
43static inline int virtio_scsi_get_lun(uint8_t *lun)
44{
45 return ((lun[2] << 8) | lun[3]) & 0x3FFF;
46}
47
48static inline SCSIDevice *virtio_scsi_device_find(VirtIOSCSI *s, uint8_t *lun)
49{
50 if (lun[0] != 1) {
51 return NULL;
52 }
53 if (lun[2] != 0 && !(lun[2] >= 0x40 && lun[2] < 0x80)) {
54 return NULL;
55 }
56 return scsi_device_find(&s->bus, 0, lun[1], virtio_scsi_get_lun(lun));
57}
58
59static void virtio_scsi_complete_req(VirtIOSCSIReq *req)
60{
61 VirtIOSCSI *s = req->dev;
62 VirtQueue *vq = req->vq;
63 VirtIODevice *vdev = VIRTIO_DEVICE(s);
64 virtqueue_push(vq, &req->elem, req->qsgl.size + req->elem.in_sg[0].iov_len);
65 qemu_sglist_destroy(&req->qsgl);
66 if (req->sreq) {
67 req->sreq->hba_private = NULL;
68 scsi_req_unref(req->sreq);
69 }
70 g_free(req);
71 virtio_notify(vdev, vq);
72}
73
74static void virtio_scsi_bad_req(void)
75{
76 error_report("wrong size for virtio-scsi headers");
77 exit(1);
78}
79
80static void qemu_sgl_init_external(QEMUSGList *qsgl, struct iovec *sg,
81 hwaddr *addr, int num)
82{
83 qemu_sglist_init(qsgl, num, &dma_context_memory);
84 while (num--) {
85 qemu_sglist_add(qsgl, *(addr++), (sg++)->iov_len);
86 }
87}
88
89static void virtio_scsi_parse_req(VirtIOSCSI *s, VirtQueue *vq,
90 VirtIOSCSIReq *req)
91{
92 assert(req->elem.in_num);
93 req->vq = vq;
94 req->dev = s;
95 req->sreq = NULL;
96 if (req->elem.out_num) {
97 req->req.buf = req->elem.out_sg[0].iov_base;
98 }
99 req->resp.buf = req->elem.in_sg[0].iov_base;
100
101 if (req->elem.out_num > 1) {
102 qemu_sgl_init_external(&req->qsgl, &req->elem.out_sg[1],
103 &req->elem.out_addr[1],
104 req->elem.out_num - 1);
105 } else {
106 qemu_sgl_init_external(&req->qsgl, &req->elem.in_sg[1],
107 &req->elem.in_addr[1],
108 req->elem.in_num - 1);
109 }
110}
111
112static VirtIOSCSIReq *virtio_scsi_pop_req(VirtIOSCSI *s, VirtQueue *vq)
113{
114 VirtIOSCSIReq *req;
115 req = g_malloc(sizeof(*req));
116 if (!virtqueue_pop(vq, &req->elem)) {
117 g_free(req);
118 return NULL;
119 }
120
121 virtio_scsi_parse_req(s, vq, req);
122 return req;
123}
124
125static void virtio_scsi_save_request(QEMUFile *f, SCSIRequest *sreq)
126{
127 VirtIOSCSIReq *req = sreq->hba_private;
128 VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(req->dev);
129 uint32_t n = virtio_queue_get_id(req->vq) - 2;
130
131 assert(n < vs->conf.num_queues);
132 qemu_put_be32s(f, &n);
133 qemu_put_buffer(f, (unsigned char *)&req->elem, sizeof(req->elem));
134}
135
136static void *virtio_scsi_load_request(QEMUFile *f, SCSIRequest *sreq)
137{
138 SCSIBus *bus = sreq->bus;
139 VirtIOSCSI *s = container_of(bus, VirtIOSCSI, bus);
140 VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(s);
141 VirtIOSCSIReq *req;
142 uint32_t n;
143
144 req = g_malloc(sizeof(*req));
145 qemu_get_be32s(f, &n);
146 assert(n < vs->conf.num_queues);
147 qemu_get_buffer(f, (unsigned char *)&req->elem, sizeof(req->elem));
148 virtio_scsi_parse_req(s, vs->cmd_vqs[n], req);
149
150 scsi_req_ref(sreq);
151 req->sreq = sreq;
152 if (req->sreq->cmd.mode != SCSI_XFER_NONE) {
153 int req_mode =
154 (req->elem.in_num > 1 ? SCSI_XFER_FROM_DEV : SCSI_XFER_TO_DEV);
155
156 assert(req->sreq->cmd.mode == req_mode);
157 }
158 return req;
159}
160
161static void virtio_scsi_do_tmf(VirtIOSCSI *s, VirtIOSCSIReq *req)
162{
163 SCSIDevice *d = virtio_scsi_device_find(s, req->req.tmf->lun);
164 SCSIRequest *r, *next;
165 BusChild *kid;
166 int target;
167
168
169 req->resp.tmf->response = VIRTIO_SCSI_S_OK;
170
171 switch (req->req.tmf->subtype) {
172 case VIRTIO_SCSI_T_TMF_ABORT_TASK:
173 case VIRTIO_SCSI_T_TMF_QUERY_TASK:
174 if (!d) {
175 goto fail;
176 }
177 if (d->lun != virtio_scsi_get_lun(req->req.tmf->lun)) {
178 goto incorrect_lun;
179 }
180 QTAILQ_FOREACH_SAFE(r, &d->requests, next, next) {
181 VirtIOSCSIReq *cmd_req = r->hba_private;
182 if (cmd_req && cmd_req->req.cmd->tag == req->req.tmf->tag) {
183 break;
184 }
185 }
186 if (r) {
187
188
189
190
191 assert(r->hba_private);
192 if (req->req.tmf->subtype == VIRTIO_SCSI_T_TMF_QUERY_TASK) {
193
194
195
196 req->resp.tmf->response = VIRTIO_SCSI_S_FUNCTION_SUCCEEDED;
197 } else {
198 scsi_req_cancel(r);
199 }
200 }
201 break;
202
203 case VIRTIO_SCSI_T_TMF_LOGICAL_UNIT_RESET:
204 if (!d) {
205 goto fail;
206 }
207 if (d->lun != virtio_scsi_get_lun(req->req.tmf->lun)) {
208 goto incorrect_lun;
209 }
210 s->resetting++;
211 qdev_reset_all(&d->qdev);
212 s->resetting--;
213 break;
214
215 case VIRTIO_SCSI_T_TMF_ABORT_TASK_SET:
216 case VIRTIO_SCSI_T_TMF_CLEAR_TASK_SET:
217 case VIRTIO_SCSI_T_TMF_QUERY_TASK_SET:
218 if (!d) {
219 goto fail;
220 }
221 if (d->lun != virtio_scsi_get_lun(req->req.tmf->lun)) {
222 goto incorrect_lun;
223 }
224 QTAILQ_FOREACH_SAFE(r, &d->requests, next, next) {
225 if (r->hba_private) {
226 if (req->req.tmf->subtype == VIRTIO_SCSI_T_TMF_QUERY_TASK_SET) {
227
228
229
230 req->resp.tmf->response = VIRTIO_SCSI_S_FUNCTION_SUCCEEDED;
231 break;
232 } else {
233 scsi_req_cancel(r);
234 }
235 }
236 }
237 break;
238
239 case VIRTIO_SCSI_T_TMF_I_T_NEXUS_RESET:
240 target = req->req.tmf->lun[1];
241 s->resetting++;
242 QTAILQ_FOREACH(kid, &s->bus.qbus.children, sibling) {
243 d = DO_UPCAST(SCSIDevice, qdev, kid->child);
244 if (d->channel == 0 && d->id == target) {
245 qdev_reset_all(&d->qdev);
246 }
247 }
248 s->resetting--;
249 break;
250
251 case VIRTIO_SCSI_T_TMF_CLEAR_ACA:
252 default:
253 req->resp.tmf->response = VIRTIO_SCSI_S_FUNCTION_REJECTED;
254 break;
255 }
256
257 return;
258
259incorrect_lun:
260 req->resp.tmf->response = VIRTIO_SCSI_S_INCORRECT_LUN;
261 return;
262
263fail:
264 req->resp.tmf->response = VIRTIO_SCSI_S_BAD_TARGET;
265}
266
267static void virtio_scsi_handle_ctrl(VirtIODevice *vdev, VirtQueue *vq)
268{
269 VirtIOSCSI *s = (VirtIOSCSI *)vdev;
270 VirtIOSCSIReq *req;
271
272 while ((req = virtio_scsi_pop_req(s, vq))) {
273 int out_size, in_size;
274 if (req->elem.out_num < 1 || req->elem.in_num < 1) {
275 virtio_scsi_bad_req();
276 continue;
277 }
278
279 out_size = req->elem.out_sg[0].iov_len;
280 in_size = req->elem.in_sg[0].iov_len;
281 if (req->req.tmf->type == VIRTIO_SCSI_T_TMF) {
282 if (out_size < sizeof(VirtIOSCSICtrlTMFReq) ||
283 in_size < sizeof(VirtIOSCSICtrlTMFResp)) {
284 virtio_scsi_bad_req();
285 }
286 virtio_scsi_do_tmf(s, req);
287
288 } else if (req->req.tmf->type == VIRTIO_SCSI_T_AN_QUERY ||
289 req->req.tmf->type == VIRTIO_SCSI_T_AN_SUBSCRIBE) {
290 if (out_size < sizeof(VirtIOSCSICtrlANReq) ||
291 in_size < sizeof(VirtIOSCSICtrlANResp)) {
292 virtio_scsi_bad_req();
293 }
294 req->resp.an->event_actual = 0;
295 req->resp.an->response = VIRTIO_SCSI_S_OK;
296 }
297 virtio_scsi_complete_req(req);
298 }
299}
300
301static void virtio_scsi_command_complete(SCSIRequest *r, uint32_t status,
302 size_t resid)
303{
304 VirtIOSCSIReq *req = r->hba_private;
305 uint32_t sense_len;
306
307 req->resp.cmd->response = VIRTIO_SCSI_S_OK;
308 req->resp.cmd->status = status;
309 if (req->resp.cmd->status == GOOD) {
310 req->resp.cmd->resid = tswap32(resid);
311 } else {
312 req->resp.cmd->resid = 0;
313 sense_len = scsi_req_get_sense(r, req->resp.cmd->sense,
314 VIRTIO_SCSI_SENSE_SIZE);
315 req->resp.cmd->sense_len = tswap32(sense_len);
316 }
317 virtio_scsi_complete_req(req);
318}
319
320static QEMUSGList *virtio_scsi_get_sg_list(SCSIRequest *r)
321{
322 VirtIOSCSIReq *req = r->hba_private;
323
324 return &req->qsgl;
325}
326
327static void virtio_scsi_request_cancelled(SCSIRequest *r)
328{
329 VirtIOSCSIReq *req = r->hba_private;
330
331 if (!req) {
332 return;
333 }
334 if (req->dev->resetting) {
335 req->resp.cmd->response = VIRTIO_SCSI_S_RESET;
336 } else {
337 req->resp.cmd->response = VIRTIO_SCSI_S_ABORTED;
338 }
339 virtio_scsi_complete_req(req);
340}
341
342static void virtio_scsi_fail_cmd_req(VirtIOSCSIReq *req)
343{
344 req->resp.cmd->response = VIRTIO_SCSI_S_FAILURE;
345 virtio_scsi_complete_req(req);
346}
347
348static void virtio_scsi_handle_cmd(VirtIODevice *vdev, VirtQueue *vq)
349{
350
351 VirtIOSCSI *s = (VirtIOSCSI *)vdev;
352 VirtIOSCSICommon *vs = &s->parent_obj;
353
354 VirtIOSCSIReq *req;
355 int n;
356
357 while ((req = virtio_scsi_pop_req(s, vq))) {
358 SCSIDevice *d;
359 int out_size, in_size;
360 if (req->elem.out_num < 1 || req->elem.in_num < 1) {
361 virtio_scsi_bad_req();
362 }
363
364 out_size = req->elem.out_sg[0].iov_len;
365 in_size = req->elem.in_sg[0].iov_len;
366 if (out_size < sizeof(VirtIOSCSICmdReq) + vs->cdb_size ||
367 in_size < sizeof(VirtIOSCSICmdResp) + vs->sense_size) {
368 virtio_scsi_bad_req();
369 }
370
371 if (req->elem.out_num > 1 && req->elem.in_num > 1) {
372 virtio_scsi_fail_cmd_req(req);
373 continue;
374 }
375
376 d = virtio_scsi_device_find(s, req->req.cmd->lun);
377 if (!d) {
378 req->resp.cmd->response = VIRTIO_SCSI_S_BAD_TARGET;
379 virtio_scsi_complete_req(req);
380 continue;
381 }
382 req->sreq = scsi_req_new(d, req->req.cmd->tag,
383 virtio_scsi_get_lun(req->req.cmd->lun),
384 req->req.cmd->cdb, req);
385
386 if (req->sreq->cmd.mode != SCSI_XFER_NONE) {
387 int req_mode =
388 (req->elem.in_num > 1 ? SCSI_XFER_FROM_DEV : SCSI_XFER_TO_DEV);
389
390 if (req->sreq->cmd.mode != req_mode ||
391 req->sreq->cmd.xfer > req->qsgl.size) {
392 req->resp.cmd->response = VIRTIO_SCSI_S_OVERRUN;
393 virtio_scsi_complete_req(req);
394 continue;
395 }
396 }
397
398 n = scsi_req_enqueue(req->sreq);
399 if (n) {
400 scsi_req_continue(req->sreq);
401 }
402 }
403}
404
405static void virtio_scsi_get_config(VirtIODevice *vdev,
406 uint8_t *config)
407{
408 VirtIOSCSIConfig *scsiconf = (VirtIOSCSIConfig *)config;
409 VirtIOSCSICommon *s = VIRTIO_SCSI_COMMON(vdev);
410
411 stl_raw(&scsiconf->num_queues, s->conf.num_queues);
412 stl_raw(&scsiconf->seg_max, 128 - 2);
413 stl_raw(&scsiconf->max_sectors, s->conf.max_sectors);
414 stl_raw(&scsiconf->cmd_per_lun, s->conf.cmd_per_lun);
415 stl_raw(&scsiconf->event_info_size, sizeof(VirtIOSCSIEvent));
416 stl_raw(&scsiconf->sense_size, s->sense_size);
417 stl_raw(&scsiconf->cdb_size, s->cdb_size);
418 stw_raw(&scsiconf->max_channel, VIRTIO_SCSI_MAX_CHANNEL);
419 stw_raw(&scsiconf->max_target, VIRTIO_SCSI_MAX_TARGET);
420 stl_raw(&scsiconf->max_lun, VIRTIO_SCSI_MAX_LUN);
421}
422
423static void virtio_scsi_set_config(VirtIODevice *vdev,
424 const uint8_t *config)
425{
426 VirtIOSCSIConfig *scsiconf = (VirtIOSCSIConfig *)config;
427 VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev);
428
429 if ((uint32_t) ldl_raw(&scsiconf->sense_size) >= 65536 ||
430 (uint32_t) ldl_raw(&scsiconf->cdb_size) >= 256) {
431 error_report("bad data written to virtio-scsi configuration space");
432 exit(1);
433 }
434
435 vs->sense_size = ldl_raw(&scsiconf->sense_size);
436 vs->cdb_size = ldl_raw(&scsiconf->cdb_size);
437}
438
439static uint32_t virtio_scsi_get_features(VirtIODevice *vdev,
440 uint32_t requested_features)
441{
442 return requested_features;
443}
444
445static void virtio_scsi_reset(VirtIODevice *vdev)
446{
447 VirtIOSCSI *s = VIRTIO_SCSI(vdev);
448 VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev);
449
450 s->resetting++;
451 qbus_reset_all(&s->bus.qbus);
452 s->resetting--;
453
454 vs->sense_size = VIRTIO_SCSI_SENSE_SIZE;
455 vs->cdb_size = VIRTIO_SCSI_CDB_SIZE;
456 s->events_dropped = false;
457}
458
459
460
461
462static void virtio_scsi_save(QEMUFile *f, void *opaque)
463{
464 VirtIODevice *vdev = VIRTIO_DEVICE(opaque);
465 virtio_save(vdev, f);
466}
467
468static int virtio_scsi_load(QEMUFile *f, void *opaque, int version_id)
469{
470 VirtIODevice *vdev = VIRTIO_DEVICE(opaque);
471 int ret;
472
473 ret = virtio_load(vdev, f);
474 if (ret) {
475 return ret;
476 }
477 return 0;
478}
479
480static void virtio_scsi_push_event(VirtIOSCSI *s, SCSIDevice *dev,
481 uint32_t event, uint32_t reason)
482{
483 VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(s);
484 VirtIOSCSIReq *req = virtio_scsi_pop_req(s, vs->event_vq);
485 VirtIOSCSIEvent *evt;
486 VirtIODevice *vdev = VIRTIO_DEVICE(s);
487 int in_size;
488
489 if (!(vdev->status & VIRTIO_CONFIG_S_DRIVER_OK)) {
490 return;
491 }
492
493 if (!req) {
494 s->events_dropped = true;
495 return;
496 }
497
498 if (req->elem.out_num || req->elem.in_num != 1) {
499 virtio_scsi_bad_req();
500 }
501
502 if (s->events_dropped) {
503 event |= VIRTIO_SCSI_T_EVENTS_MISSED;
504 s->events_dropped = false;
505 }
506
507 in_size = req->elem.in_sg[0].iov_len;
508 if (in_size < sizeof(VirtIOSCSIEvent)) {
509 virtio_scsi_bad_req();
510 }
511
512 evt = req->resp.event;
513 memset(evt, 0, sizeof(VirtIOSCSIEvent));
514 evt->event = event;
515 evt->reason = reason;
516 if (!dev) {
517 assert(event == VIRTIO_SCSI_T_NO_EVENT);
518 } else {
519 evt->lun[0] = 1;
520 evt->lun[1] = dev->id;
521
522
523 if (dev->lun >= 256) {
524 evt->lun[2] = (dev->lun >> 8) | 0x40;
525 }
526 evt->lun[3] = dev->lun & 0xFF;
527 }
528 virtio_scsi_complete_req(req);
529}
530
531static void virtio_scsi_handle_event(VirtIODevice *vdev, VirtQueue *vq)
532{
533 VirtIOSCSI *s = VIRTIO_SCSI(vdev);
534
535 if (s->events_dropped) {
536 virtio_scsi_push_event(s, NULL, VIRTIO_SCSI_T_NO_EVENT, 0);
537 }
538}
539
540static void virtio_scsi_change(SCSIBus *bus, SCSIDevice *dev, SCSISense sense)
541{
542 VirtIOSCSI *s = container_of(bus, VirtIOSCSI, bus);
543 VirtIODevice *vdev = VIRTIO_DEVICE(s);
544
545 if (((vdev->guest_features >> VIRTIO_SCSI_F_CHANGE) & 1) &&
546 dev->type != TYPE_ROM) {
547 virtio_scsi_push_event(s, dev, VIRTIO_SCSI_T_PARAM_CHANGE,
548 sense.asc | (sense.ascq << 8));
549 }
550}
551
552static void virtio_scsi_hotplug(SCSIBus *bus, SCSIDevice *dev)
553{
554 VirtIOSCSI *s = container_of(bus, VirtIOSCSI, bus);
555 VirtIODevice *vdev = VIRTIO_DEVICE(s);
556
557 if ((vdev->guest_features >> VIRTIO_SCSI_F_HOTPLUG) & 1) {
558 virtio_scsi_push_event(s, dev, VIRTIO_SCSI_T_TRANSPORT_RESET,
559 VIRTIO_SCSI_EVT_RESET_RESCAN);
560 }
561}
562
563static void virtio_scsi_hot_unplug(SCSIBus *bus, SCSIDevice *dev)
564{
565 VirtIOSCSI *s = container_of(bus, VirtIOSCSI, bus);
566 VirtIODevice *vdev = VIRTIO_DEVICE(s);
567
568 if ((vdev->guest_features >> VIRTIO_SCSI_F_HOTPLUG) & 1) {
569 virtio_scsi_push_event(s, dev, VIRTIO_SCSI_T_TRANSPORT_RESET,
570 VIRTIO_SCSI_EVT_RESET_REMOVED);
571 }
572}
573
574static struct SCSIBusInfo virtio_scsi_scsi_info = {
575 .tcq = true,
576 .max_channel = VIRTIO_SCSI_MAX_CHANNEL,
577 .max_target = VIRTIO_SCSI_MAX_TARGET,
578 .max_lun = VIRTIO_SCSI_MAX_LUN,
579
580 .complete = virtio_scsi_command_complete,
581 .cancel = virtio_scsi_request_cancelled,
582 .change = virtio_scsi_change,
583 .hotplug = virtio_scsi_hotplug,
584 .hot_unplug = virtio_scsi_hot_unplug,
585 .get_sg_list = virtio_scsi_get_sg_list,
586 .save_request = virtio_scsi_save_request,
587 .load_request = virtio_scsi_load_request,
588};
589
590int virtio_scsi_common_init(VirtIOSCSICommon *s)
591{
592 VirtIODevice *vdev = VIRTIO_DEVICE(s);
593 int i;
594
595 virtio_init(VIRTIO_DEVICE(s), "virtio-scsi", VIRTIO_ID_SCSI,
596 sizeof(VirtIOSCSIConfig));
597
598 s->cmd_vqs = g_malloc0(s->conf.num_queues * sizeof(VirtQueue *));
599 s->sense_size = VIRTIO_SCSI_SENSE_SIZE;
600 s->cdb_size = VIRTIO_SCSI_CDB_SIZE;
601
602 s->ctrl_vq = virtio_add_queue(vdev, VIRTIO_SCSI_VQ_SIZE,
603 virtio_scsi_handle_ctrl);
604 s->event_vq = virtio_add_queue(vdev, VIRTIO_SCSI_VQ_SIZE,
605 virtio_scsi_handle_event);
606 for (i = 0; i < s->conf.num_queues; i++) {
607 s->cmd_vqs[i] = virtio_add_queue(vdev, VIRTIO_SCSI_VQ_SIZE,
608 virtio_scsi_handle_cmd);
609 }
610
611 return 0;
612}
613
614static int virtio_scsi_device_init(VirtIODevice *vdev)
615{
616 DeviceState *qdev = DEVICE(vdev);
617 VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev);
618 VirtIOSCSI *s = VIRTIO_SCSI(vdev);
619 static int virtio_scsi_id;
620 int ret;
621
622 ret = virtio_scsi_common_init(vs);
623 if (ret < 0) {
624 return ret;
625 }
626
627 scsi_bus_new(&s->bus, qdev, &virtio_scsi_scsi_info, vdev->bus_name);
628
629 if (!qdev->hotplugged) {
630 scsi_bus_legacy_handle_cmdline(&s->bus);
631 }
632
633 register_savevm(qdev, "virtio-scsi", virtio_scsi_id++, 1,
634 virtio_scsi_save, virtio_scsi_load, s);
635
636 return 0;
637}
638
639int virtio_scsi_common_exit(VirtIOSCSICommon *vs)
640{
641 VirtIODevice *vdev = VIRTIO_DEVICE(vs);
642
643 g_free(vs->cmd_vqs);
644 virtio_cleanup(vdev);
645 return 0;
646}
647
648static int virtio_scsi_device_exit(DeviceState *qdev)
649{
650 VirtIOSCSI *s = VIRTIO_SCSI(qdev);
651 VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(qdev);
652
653 unregister_savevm(qdev, "virtio-scsi", s);
654 return virtio_scsi_common_exit(vs);
655}
656
657static Property virtio_scsi_properties[] = {
658 DEFINE_VIRTIO_SCSI_PROPERTIES(VirtIOSCSI, parent_obj.conf),
659 DEFINE_PROP_END_OF_LIST(),
660};
661
662static void virtio_scsi_common_class_init(ObjectClass *klass, void *data)
663{
664 VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
665
666 vdc->get_config = virtio_scsi_get_config;
667}
668
669static void virtio_scsi_class_init(ObjectClass *klass, void *data)
670{
671 DeviceClass *dc = DEVICE_CLASS(klass);
672 VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
673 dc->exit = virtio_scsi_device_exit;
674 dc->props = virtio_scsi_properties;
675 vdc->init = virtio_scsi_device_init;
676 vdc->set_config = virtio_scsi_set_config;
677 vdc->get_features = virtio_scsi_get_features;
678 vdc->reset = virtio_scsi_reset;
679}
680
681static const TypeInfo virtio_scsi_common_info = {
682 .name = TYPE_VIRTIO_SCSI_COMMON,
683 .parent = TYPE_VIRTIO_DEVICE,
684 .instance_size = sizeof(VirtIOSCSICommon),
685 .class_init = virtio_scsi_common_class_init,
686};
687
688static const TypeInfo virtio_scsi_info = {
689 .name = TYPE_VIRTIO_SCSI,
690 .parent = TYPE_VIRTIO_SCSI_COMMON,
691 .instance_size = sizeof(VirtIOSCSI),
692 .class_init = virtio_scsi_class_init,
693};
694
695static void virtio_register_types(void)
696{
697 type_register_static(&virtio_scsi_common_info);
698 type_register_static(&virtio_scsi_info);
699}
700
701type_init(virtio_register_types)
702
