2 #include "qemu-error.h"
10 static char *scsibus_get_dev_path(DeviceState
*dev
);
11 static char *scsibus_get_fw_dev_path(DeviceState
*dev
);
12 static int scsi_req_parse(SCSICommand
*cmd
, SCSIDevice
*dev
, uint8_t *buf
);
13 static void scsi_req_dequeue(SCSIRequest
*req
);
15 static struct BusInfo scsi_bus_info
= {
17 .size
= sizeof(SCSIBus
),
18 .get_dev_path
= scsibus_get_dev_path
,
19 .get_fw_dev_path
= scsibus_get_fw_dev_path
,
20 .props
= (Property
[]) {
21 DEFINE_PROP_UINT32("channel", SCSIDevice
, channel
, 0),
22 DEFINE_PROP_UINT32("scsi-id", SCSIDevice
, id
, -1),
23 DEFINE_PROP_UINT32("lun", SCSIDevice
, lun
, -1),
24 DEFINE_PROP_END_OF_LIST(),
27 static int next_scsi_bus
;
29 static int scsi_device_init(SCSIDevice
*s
)
31 SCSIDeviceClass
*sc
= SCSI_DEVICE_GET_CLASS(s
);
38 static void scsi_device_destroy(SCSIDevice
*s
)
40 SCSIDeviceClass
*sc
= SCSI_DEVICE_GET_CLASS(s
);
46 static SCSIRequest
*scsi_device_alloc_req(SCSIDevice
*s
, uint32_t tag
, uint32_t lun
,
47 uint8_t *buf
, void *hba_private
)
49 SCSIDeviceClass
*sc
= SCSI_DEVICE_GET_CLASS(s
);
51 return sc
->alloc_req(s
, tag
, lun
, buf
, hba_private
);
57 static void scsi_device_unit_attention_reported(SCSIDevice
*s
)
59 SCSIDeviceClass
*sc
= SCSI_DEVICE_GET_CLASS(s
);
60 if (sc
->unit_attention_reported
) {
61 sc
->unit_attention_reported(s
);
65 /* Create a scsi bus, and attach devices to it. */
66 void scsi_bus_new(SCSIBus
*bus
, DeviceState
*host
, const SCSIBusInfo
*info
)
68 qbus_create_inplace(&bus
->qbus
, &scsi_bus_info
, host
, NULL
);
69 bus
->busnr
= next_scsi_bus
++;
71 bus
->qbus
.allow_hotplug
= 1;
74 static void scsi_dma_restart_bh(void *opaque
)
76 SCSIDevice
*s
= opaque
;
77 SCSIRequest
*req
, *next
;
79 qemu_bh_delete(s
->bh
);
82 QTAILQ_FOREACH_SAFE(req
, &s
->requests
, next
, next
) {
86 switch (req
->cmd
.mode
) {
87 case SCSI_XFER_FROM_DEV
:
88 case SCSI_XFER_TO_DEV
:
89 scsi_req_continue(req
);
93 scsi_req_dequeue(req
);
94 scsi_req_enqueue(req
);
102 void scsi_req_retry(SCSIRequest
*req
)
104 /* No need to save a reference, because scsi_dma_restart_bh just
105 * looks at the request list. */
109 static void scsi_dma_restart_cb(void *opaque
, int running
, RunState state
)
111 SCSIDevice
*s
= opaque
;
117 s
->bh
= qemu_bh_new(scsi_dma_restart_bh
, s
);
118 qemu_bh_schedule(s
->bh
);
122 static int scsi_qdev_init(DeviceState
*qdev
)
124 SCSIDevice
*dev
= SCSI_DEVICE(qdev
);
125 SCSIBus
*bus
= DO_UPCAST(SCSIBus
, qbus
, dev
->qdev
.parent_bus
);
129 if (dev
->channel
> bus
->info
->max_channel
) {
130 error_report("bad scsi channel id: %d", dev
->channel
);
133 if (dev
->id
!= -1 && dev
->id
> bus
->info
->max_target
) {
134 error_report("bad scsi device id: %d", dev
->id
);
137 if (dev
->lun
!= -1 && dev
->lun
> bus
->info
->max_lun
) {
138 error_report("bad scsi device lun: %d", dev
->lun
);
144 if (dev
->lun
== -1) {
148 d
= scsi_device_find(bus
, dev
->channel
, ++id
, dev
->lun
);
149 } while (d
&& d
->lun
== dev
->lun
&& id
< bus
->info
->max_target
);
150 if (d
&& d
->lun
== dev
->lun
) {
151 error_report("no free target");
155 } else if (dev
->lun
== -1) {
158 d
= scsi_device_find(bus
, dev
->channel
, dev
->id
, ++lun
);
159 } while (d
&& d
->lun
== lun
&& lun
< bus
->info
->max_lun
);
160 if (d
&& d
->lun
== lun
) {
161 error_report("no free lun");
166 d
= scsi_device_find(bus
, dev
->channel
, dev
->id
, dev
->lun
);
168 if (d
->lun
== dev
->lun
&& dev
!= d
) {
173 QTAILQ_INIT(&dev
->requests
);
174 rc
= scsi_device_init(dev
);
176 dev
->vmsentry
= qemu_add_vm_change_state_handler(scsi_dma_restart_cb
,
184 static int scsi_qdev_exit(DeviceState
*qdev
)
186 SCSIDevice
*dev
= SCSI_DEVICE(qdev
);
189 qemu_del_vm_change_state_handler(dev
->vmsentry
);
191 scsi_device_destroy(dev
);
195 /* handle legacy '-drive if=scsi,...' cmd line args */
196 SCSIDevice
*scsi_bus_legacy_add_drive(SCSIBus
*bus
, BlockDriverState
*bdrv
,
197 int unit
, bool removable
, int bootindex
)
202 driver
= bdrv_is_sg(bdrv
) ? "scsi-generic" : "scsi-disk";
203 dev
= qdev_create(&bus
->qbus
, driver
);
204 qdev_prop_set_uint32(dev
, "scsi-id", unit
);
205 if (bootindex
>= 0) {
206 qdev_prop_set_int32(dev
, "bootindex", bootindex
);
208 if (qdev_prop_exists(dev
, "removable")) {
209 qdev_prop_set_bit(dev
, "removable", removable
);
211 if (qdev_prop_set_drive(dev
, "drive", bdrv
) < 0) {
215 if (qdev_init(dev
) < 0)
217 return SCSI_DEVICE(dev
);
220 int scsi_bus_legacy_handle_cmdline(SCSIBus
*bus
)
227 for (unit
= 0; unit
<= bus
->info
->max_target
; unit
++) {
228 dinfo
= drive_get(IF_SCSI
, bus
->busnr
, unit
);
232 qemu_opts_loc_restore(dinfo
->opts
);
233 if (!scsi_bus_legacy_add_drive(bus
, dinfo
->bdrv
, unit
, false, -1)) {
242 /* SCSIReqOps implementation for invalid commands. */
244 static int32_t scsi_invalid_command(SCSIRequest
*req
, uint8_t *buf
)
246 scsi_req_build_sense(req
, SENSE_CODE(INVALID_OPCODE
));
247 scsi_req_complete(req
, CHECK_CONDITION
);
251 static const struct SCSIReqOps reqops_invalid_opcode
= {
252 .size
= sizeof(SCSIRequest
),
253 .send_command
= scsi_invalid_command
256 /* SCSIReqOps implementation for unit attention conditions. */
258 static int32_t scsi_unit_attention(SCSIRequest
*req
, uint8_t *buf
)
260 if (req
->dev
&& req
->dev
->unit_attention
.key
== UNIT_ATTENTION
) {
261 scsi_req_build_sense(req
, req
->dev
->unit_attention
);
262 } else if (req
->bus
->unit_attention
.key
== UNIT_ATTENTION
) {
263 scsi_req_build_sense(req
, req
->bus
->unit_attention
);
265 scsi_req_complete(req
, CHECK_CONDITION
);
269 static const struct SCSIReqOps reqops_unit_attention
= {
270 .size
= sizeof(SCSIRequest
),
271 .send_command
= scsi_unit_attention
274 /* SCSIReqOps implementation for REPORT LUNS and for commands sent to
277 typedef struct SCSITargetReq SCSITargetReq
;
279 struct SCSITargetReq
{
285 static void store_lun(uint8_t *outbuf
, int lun
)
291 outbuf
[1] = (lun
& 255);
292 outbuf
[0] = (lun
>> 8) | 0x40;
295 static bool scsi_target_emulate_report_luns(SCSITargetReq
*r
)
302 if (r
->req
.cmd
.xfer
< 16) {
305 if (r
->req
.cmd
.buf
[2] > 2) {
308 channel
= r
->req
.dev
->channel
;
312 QTAILQ_FOREACH(qdev
, &r
->req
.bus
->qbus
.children
, sibling
) {
313 SCSIDevice
*dev
= SCSI_DEVICE(qdev
);
315 if (dev
->channel
== channel
&& dev
->id
== id
) {
325 len
= MIN(n
+ 8, r
->req
.cmd
.xfer
& ~7);
326 if (len
> sizeof(r
->buf
)) {
327 /* TODO: > 256 LUNs? */
331 memset(r
->buf
, 0, len
);
332 stl_be_p(&r
->buf
, n
);
333 i
= found_lun0
? 8 : 16;
334 QTAILQ_FOREACH(qdev
, &r
->req
.bus
->qbus
.children
, sibling
) {
335 SCSIDevice
*dev
= SCSI_DEVICE(qdev
);
337 if (dev
->channel
== channel
&& dev
->id
== id
) {
338 store_lun(&r
->buf
[i
], dev
->lun
);
347 static bool scsi_target_emulate_inquiry(SCSITargetReq
*r
)
349 assert(r
->req
.dev
->lun
!= r
->req
.lun
);
350 if (r
->req
.cmd
.buf
[1] & 0x2) {
351 /* Command support data - optional, not implemented */
355 if (r
->req
.cmd
.buf
[1] & 0x1) {
356 /* Vital product data */
357 uint8_t page_code
= r
->req
.cmd
.buf
[2];
358 if (r
->req
.cmd
.xfer
< 4) {
362 r
->buf
[r
->len
++] = page_code
; /* this page */
363 r
->buf
[r
->len
++] = 0x00;
366 case 0x00: /* Supported page codes, mandatory */
370 r
->buf
[r
->len
++] = 0x00; /* list of supported pages (this page) */
371 r
->buf
[pages
] = r
->len
- pages
- 1; /* number of pages */
378 assert(r
->len
< sizeof(r
->buf
));
379 r
->len
= MIN(r
->req
.cmd
.xfer
, r
->len
);
383 /* Standard INQUIRY data */
384 if (r
->req
.cmd
.buf
[2] != 0) {
389 if (r
->req
.cmd
.xfer
< 5) {
393 r
->len
= MIN(r
->req
.cmd
.xfer
, 36);
394 memset(r
->buf
, 0, r
->len
);
395 if (r
->req
.lun
!= 0) {
396 r
->buf
[0] = TYPE_NO_LUN
;
398 r
->buf
[0] = TYPE_NOT_PRESENT
| TYPE_INACTIVE
;
399 r
->buf
[2] = 5; /* Version */
400 r
->buf
[3] = 2 | 0x10; /* HiSup, response data format */
401 r
->buf
[4] = r
->len
- 5; /* Additional Length = (Len - 1) - 4 */
402 r
->buf
[7] = 0x10 | (r
->req
.bus
->info
->tcq
? 0x02 : 0); /* Sync, TCQ. */
403 memcpy(&r
->buf
[8], "QEMU ", 8);
404 memcpy(&r
->buf
[16], "QEMU TARGET ", 16);
405 strncpy((char *) &r
->buf
[32], QEMU_VERSION
, 4);
410 static int32_t scsi_target_send_command(SCSIRequest
*req
, uint8_t *buf
)
412 SCSITargetReq
*r
= DO_UPCAST(SCSITargetReq
, req
, req
);
416 if (!scsi_target_emulate_report_luns(r
)) {
417 goto illegal_request
;
421 if (!scsi_target_emulate_inquiry(r
)) {
422 goto illegal_request
;
426 if (req
->cmd
.xfer
< 4) {
427 goto illegal_request
;
429 r
->len
= scsi_device_get_sense(r
->req
.dev
, r
->buf
,
430 MIN(req
->cmd
.xfer
, sizeof r
->buf
),
431 (req
->cmd
.buf
[1] & 1) == 0);
432 if (r
->req
.dev
->sense_is_ua
) {
433 scsi_device_unit_attention_reported(req
->dev
);
434 r
->req
.dev
->sense_len
= 0;
435 r
->req
.dev
->sense_is_ua
= false;
439 scsi_req_build_sense(req
, SENSE_CODE(LUN_NOT_SUPPORTED
));
440 scsi_req_complete(req
, CHECK_CONDITION
);
443 scsi_req_build_sense(req
, SENSE_CODE(INVALID_FIELD
));
444 scsi_req_complete(req
, CHECK_CONDITION
);
449 scsi_req_complete(req
, GOOD
);
454 static void scsi_target_read_data(SCSIRequest
*req
)
456 SCSITargetReq
*r
= DO_UPCAST(SCSITargetReq
, req
, req
);
462 scsi_req_data(&r
->req
, n
);
464 scsi_req_complete(&r
->req
, GOOD
);
468 static uint8_t *scsi_target_get_buf(SCSIRequest
*req
)
470 SCSITargetReq
*r
= DO_UPCAST(SCSITargetReq
, req
, req
);
475 static const struct SCSIReqOps reqops_target_command
= {
476 .size
= sizeof(SCSITargetReq
),
477 .send_command
= scsi_target_send_command
,
478 .read_data
= scsi_target_read_data
,
479 .get_buf
= scsi_target_get_buf
,
483 SCSIRequest
*scsi_req_alloc(const SCSIReqOps
*reqops
, SCSIDevice
*d
,
484 uint32_t tag
, uint32_t lun
, void *hba_private
)
488 req
= g_malloc0(reqops
->size
);
490 req
->bus
= scsi_bus_from_device(d
);
494 req
->hba_private
= hba_private
;
498 trace_scsi_req_alloc(req
->dev
->id
, req
->lun
, req
->tag
);
502 SCSIRequest
*scsi_req_new(SCSIDevice
*d
, uint32_t tag
, uint32_t lun
,
503 uint8_t *buf
, void *hba_private
)
505 SCSIBus
*bus
= DO_UPCAST(SCSIBus
, qbus
, d
->qdev
.parent_bus
);
509 if (scsi_req_parse(&cmd
, d
, buf
) != 0) {
510 trace_scsi_req_parse_bad(d
->id
, lun
, tag
, buf
[0]);
511 req
= scsi_req_alloc(&reqops_invalid_opcode
, d
, tag
, lun
, hba_private
);
513 trace_scsi_req_parsed(d
->id
, lun
, tag
, buf
[0],
516 trace_scsi_req_parsed_lba(d
->id
, lun
, tag
, buf
[0],
520 if ((d
->unit_attention
.key
== UNIT_ATTENTION
||
521 bus
->unit_attention
.key
== UNIT_ATTENTION
) &&
522 (buf
[0] != INQUIRY
&&
523 buf
[0] != REPORT_LUNS
&&
524 buf
[0] != GET_CONFIGURATION
&&
525 buf
[0] != GET_EVENT_STATUS_NOTIFICATION
&&
528 * If we already have a pending unit attention condition,
529 * report this one before triggering another one.
531 !(buf
[0] == REQUEST_SENSE
&& d
->sense_is_ua
))) {
532 req
= scsi_req_alloc(&reqops_unit_attention
, d
, tag
, lun
,
534 } else if (lun
!= d
->lun
||
535 buf
[0] == REPORT_LUNS
||
536 (buf
[0] == REQUEST_SENSE
&& (d
->sense_len
|| cmd
.xfer
< 4))) {
537 req
= scsi_req_alloc(&reqops_target_command
, d
, tag
, lun
,
540 req
= scsi_device_alloc_req(d
, tag
, lun
, buf
, hba_private
);
545 req
->resid
= req
->cmd
.xfer
;
549 trace_scsi_inquiry(d
->id
, lun
, tag
, cmd
.buf
[1], cmd
.buf
[2]);
551 case TEST_UNIT_READY
:
552 trace_scsi_test_unit_ready(d
->id
, lun
, tag
);
555 trace_scsi_report_luns(d
->id
, lun
, tag
);
558 trace_scsi_request_sense(d
->id
, lun
, tag
);
567 uint8_t *scsi_req_get_buf(SCSIRequest
*req
)
569 return req
->ops
->get_buf(req
);
572 static void scsi_clear_unit_attention(SCSIRequest
*req
)
575 if (req
->dev
->unit_attention
.key
!= UNIT_ATTENTION
&&
576 req
->bus
->unit_attention
.key
!= UNIT_ATTENTION
) {
581 * If an INQUIRY command enters the enabled command state,
582 * the device server shall [not] clear any unit attention condition;
583 * See also MMC-6, paragraphs 6.5 and 6.6.2.
585 if (req
->cmd
.buf
[0] == INQUIRY
||
586 req
->cmd
.buf
[0] == GET_CONFIGURATION
||
587 req
->cmd
.buf
[0] == GET_EVENT_STATUS_NOTIFICATION
) {
591 if (req
->dev
->unit_attention
.key
== UNIT_ATTENTION
) {
592 ua
= &req
->dev
->unit_attention
;
594 ua
= &req
->bus
->unit_attention
;
598 * If a REPORT LUNS command enters the enabled command state, [...]
599 * the device server shall clear any pending unit attention condition
600 * with an additional sense code of REPORTED LUNS DATA HAS CHANGED.
602 if (req
->cmd
.buf
[0] == REPORT_LUNS
&&
603 !(ua
->asc
== SENSE_CODE(REPORTED_LUNS_CHANGED
).asc
&&
604 ua
->ascq
== SENSE_CODE(REPORTED_LUNS_CHANGED
).ascq
)) {
608 *ua
= SENSE_CODE(NO_SENSE
);
611 int scsi_req_get_sense(SCSIRequest
*req
, uint8_t *buf
, int len
)
616 if (!req
->sense_len
) {
620 ret
= scsi_build_sense(req
->sense
, req
->sense_len
, buf
, len
, true);
623 * FIXME: clearing unit attention conditions upon autosense should be done
624 * only if the UA_INTLCK_CTRL field in the Control mode page is set to 00b
627 * We assume UA_INTLCK_CTRL to be 00b for HBAs that support autosense, and
628 * 10b for HBAs that do not support it (do not call scsi_req_get_sense).
629 * Here we handle unit attention clearing for UA_INTLCK_CTRL == 00b.
631 if (req
->dev
->sense_is_ua
) {
632 scsi_device_unit_attention_reported(req
->dev
);
633 req
->dev
->sense_len
= 0;
634 req
->dev
->sense_is_ua
= false;
639 int scsi_device_get_sense(SCSIDevice
*dev
, uint8_t *buf
, int len
, bool fixed
)
641 return scsi_build_sense(dev
->sense
, dev
->sense_len
, buf
, len
, fixed
);
644 void scsi_req_build_sense(SCSIRequest
*req
, SCSISense sense
)
646 trace_scsi_req_build_sense(req
->dev
->id
, req
->lun
, req
->tag
,
647 sense
.key
, sense
.asc
, sense
.ascq
);
648 memset(req
->sense
, 0, 18);
649 req
->sense
[0] = 0xf0;
650 req
->sense
[2] = sense
.key
;
652 req
->sense
[12] = sense
.asc
;
653 req
->sense
[13] = sense
.ascq
;
657 static void scsi_req_enqueue_internal(SCSIRequest
*req
)
659 assert(!req
->enqueued
);
661 if (req
->bus
->info
->get_sg_list
) {
662 req
->sg
= req
->bus
->info
->get_sg_list(req
);
666 req
->enqueued
= true;
667 QTAILQ_INSERT_TAIL(&req
->dev
->requests
, req
, next
);
670 int32_t scsi_req_enqueue(SCSIRequest
*req
)
675 scsi_req_enqueue_internal(req
);
677 rc
= req
->ops
->send_command(req
, req
->cmd
.buf
);
682 static void scsi_req_dequeue(SCSIRequest
*req
)
684 trace_scsi_req_dequeue(req
->dev
->id
, req
->lun
, req
->tag
);
687 QTAILQ_REMOVE(&req
->dev
->requests
, req
, next
);
688 req
->enqueued
= false;
693 static int scsi_get_performance_length(int num_desc
, int type
, int data_type
)
695 /* MMC-6, paragraph 6.7. */
698 if ((data_type
& 3) == 0) {
699 /* Each descriptor is as in Table 295 - Nominal performance. */
700 return 16 * num_desc
+ 8;
702 /* Each descriptor is as in Table 296 - Exceptions. */
703 return 6 * num_desc
+ 8;
708 return 8 * num_desc
+ 8;
710 return 2048 * num_desc
+ 8;
712 return 16 * num_desc
+ 8;
718 static int scsi_req_length(SCSICommand
*cmd
, SCSIDevice
*dev
, uint8_t *buf
)
720 switch (buf
[0] >> 5) {
724 /* length 0 means 256 blocks */
725 if (cmd
->xfer
== 0) {
731 cmd
->xfer
= lduw_be_p(&buf
[7]);
735 cmd
->xfer
= ldl_be_p(&buf
[10]) & 0xffffffffULL
;
739 cmd
->xfer
= ldl_be_p(&buf
[6]) & 0xffffffffULL
;
747 case TEST_UNIT_READY
:
751 case WRITE_FILEMARKS
:
752 case WRITE_FILEMARKS_16
:
757 case ALLOW_MEDIUM_REMOVAL
:
760 case SYNCHRONIZE_CACHE
:
761 case SYNCHRONIZE_CACHE_16
:
763 case LOCK_UNLOCK_CACHE
:
774 case ALLOW_OVERWRITE
:
782 case READ_CAPACITY_10
:
785 case READ_BLOCK_LIMITS
:
788 case SEND_VOLUME_TAG
:
789 /* GPCMD_SET_STREAMING from multimedia commands. */
790 if (dev
->type
== TYPE_ROM
) {
791 cmd
->xfer
= buf
[10] | (buf
[9] << 8);
793 cmd
->xfer
= buf
[9] | (buf
[8] << 8);
797 case WRITE_VERIFY_10
:
800 case WRITE_VERIFY_12
:
802 case WRITE_VERIFY_16
:
803 cmd
->xfer
*= dev
->blocksize
;
808 case RECOVER_BUFFERED_DATA
:
811 cmd
->xfer
*= dev
->blocksize
;
814 /* MMC mandates the parameter list to be 12-bytes long. Parameters
815 * for block devices are restricted to the header right now. */
816 if (dev
->type
== TYPE_ROM
&& (buf
[1] & 16)) {
819 cmd
->xfer
= (buf
[1] & 16) == 0 ? 0 : (buf
[1] & 32 ? 8 : 4);
823 case RECEIVE_DIAGNOSTIC
:
824 case SEND_DIAGNOSTIC
:
825 cmd
->xfer
= buf
[4] | (buf
[3] << 8);
831 cmd
->xfer
= buf
[8] | (buf
[7] << 8) | (buf
[6] << 16);
833 case PERSISTENT_RESERVE_OUT
:
834 cmd
->xfer
= ldl_be_p(&buf
[5]) & 0xffffffffULL
;
837 if (dev
->type
== TYPE_ROM
) {
838 /* MMC command GET PERFORMANCE. */
839 cmd
->xfer
= scsi_get_performance_length(buf
[9] | (buf
[8] << 8),
840 buf
[10], buf
[1] & 0x1f);
843 case MECHANISM_STATUS
:
844 case READ_DVD_STRUCTURE
:
845 case SEND_DVD_STRUCTURE
:
846 case MAINTENANCE_OUT
:
848 if (dev
->type
== TYPE_ROM
) {
849 /* GPCMD_REPORT_KEY and GPCMD_SEND_KEY from multi media commands */
850 cmd
->xfer
= buf
[9] | (buf
[8] << 8);
857 static int scsi_req_stream_length(SCSICommand
*cmd
, SCSIDevice
*dev
, uint8_t *buf
)
860 /* stream commands */
867 case RECOVER_BUFFERED_DATA
:
870 cmd
->xfer
= buf
[4] | (buf
[3] << 8) | (buf
[2] << 16);
871 if (buf
[1] & 0x01) { /* fixed */
872 cmd
->xfer
*= dev
->blocksize
;
881 cmd
->xfer
= buf
[13] | (buf
[12] << 8);
884 cmd
->xfer
= buf
[8] | (buf
[7] << 8);
887 cmd
->xfer
= buf
[4] | (buf
[3] << 8);
889 /* generic commands */
891 return scsi_req_length(cmd
, dev
, buf
);
896 static void scsi_cmd_xfer_mode(SCSICommand
*cmd
)
898 switch (cmd
->buf
[0]) {
901 case WRITE_VERIFY_10
:
903 case WRITE_VERIFY_12
:
905 case WRITE_VERIFY_16
:
909 case CHANGE_DEFINITION
:
913 case SEND_DIAGNOSTIC
:
916 case REASSIGN_BLOCKS
:
924 case SEARCH_EQUAL_12
:
927 case SEND_VOLUME_TAG
:
929 case SEND_DVD_STRUCTURE
:
930 case PERSISTENT_RESERVE_OUT
:
931 case MAINTENANCE_OUT
:
932 cmd
->mode
= SCSI_XFER_TO_DEV
;
936 cmd
->mode
= SCSI_XFER_FROM_DEV
;
938 cmd
->mode
= SCSI_XFER_NONE
;
944 static uint64_t scsi_cmd_lba(SCSICommand
*cmd
)
946 uint8_t *buf
= cmd
->buf
;
949 switch (buf
[0] >> 5) {
951 lba
= ldl_be_p(&buf
[0]) & 0x1fffff;
956 lba
= ldl_be_p(&buf
[2]) & 0xffffffffULL
;
959 lba
= ldq_be_p(&buf
[2]);
968 int scsi_req_parse(SCSICommand
*cmd
, SCSIDevice
*dev
, uint8_t *buf
)
972 if (dev
->type
== TYPE_TAPE
) {
973 rc
= scsi_req_stream_length(cmd
, dev
, buf
);
975 rc
= scsi_req_length(cmd
, dev
, buf
);
980 memcpy(cmd
->buf
, buf
, cmd
->len
);
981 scsi_cmd_xfer_mode(cmd
);
982 cmd
->lba
= scsi_cmd_lba(cmd
);
987 * Predefined sense codes
990 /* No sense data available */
991 const struct SCSISense sense_code_NO_SENSE
= {
992 .key
= NO_SENSE
, .asc
= 0x00 , .ascq
= 0x00
995 /* LUN not ready, Manual intervention required */
996 const struct SCSISense sense_code_LUN_NOT_READY
= {
997 .key
= NOT_READY
, .asc
= 0x04, .ascq
= 0x03
1000 /* LUN not ready, Medium not present */
1001 const struct SCSISense sense_code_NO_MEDIUM
= {
1002 .key
= NOT_READY
, .asc
= 0x3a, .ascq
= 0x00
1005 /* LUN not ready, medium removal prevented */
1006 const struct SCSISense sense_code_NOT_READY_REMOVAL_PREVENTED
= {
1007 .key
= NOT_READY
, .asc
= 0x53, .ascq
= 0x00
1010 /* Hardware error, internal target failure */
1011 const struct SCSISense sense_code_TARGET_FAILURE
= {
1012 .key
= HARDWARE_ERROR
, .asc
= 0x44, .ascq
= 0x00
1015 /* Illegal request, invalid command operation code */
1016 const struct SCSISense sense_code_INVALID_OPCODE
= {
1017 .key
= ILLEGAL_REQUEST
, .asc
= 0x20, .ascq
= 0x00
1020 /* Illegal request, LBA out of range */
1021 const struct SCSISense sense_code_LBA_OUT_OF_RANGE
= {
1022 .key
= ILLEGAL_REQUEST
, .asc
= 0x21, .ascq
= 0x00
1025 /* Illegal request, Invalid field in CDB */
1026 const struct SCSISense sense_code_INVALID_FIELD
= {
1027 .key
= ILLEGAL_REQUEST
, .asc
= 0x24, .ascq
= 0x00
1030 /* Illegal request, LUN not supported */
1031 const struct SCSISense sense_code_LUN_NOT_SUPPORTED
= {
1032 .key
= ILLEGAL_REQUEST
, .asc
= 0x25, .ascq
= 0x00
1035 /* Illegal request, Saving parameters not supported */
1036 const struct SCSISense sense_code_SAVING_PARAMS_NOT_SUPPORTED
= {
1037 .key
= ILLEGAL_REQUEST
, .asc
= 0x39, .ascq
= 0x00
1040 /* Illegal request, Incompatible medium installed */
1041 const struct SCSISense sense_code_INCOMPATIBLE_FORMAT
= {
1042 .key
= ILLEGAL_REQUEST
, .asc
= 0x30, .ascq
= 0x00
1045 /* Illegal request, medium removal prevented */
1046 const struct SCSISense sense_code_ILLEGAL_REQ_REMOVAL_PREVENTED
= {
1047 .key
= ILLEGAL_REQUEST
, .asc
= 0x53, .ascq
= 0x00
1050 /* Command aborted, I/O process terminated */
1051 const struct SCSISense sense_code_IO_ERROR
= {
1052 .key
= ABORTED_COMMAND
, .asc
= 0x00, .ascq
= 0x06
1055 /* Command aborted, I_T Nexus loss occurred */
1056 const struct SCSISense sense_code_I_T_NEXUS_LOSS
= {
1057 .key
= ABORTED_COMMAND
, .asc
= 0x29, .ascq
= 0x07
1060 /* Command aborted, Logical Unit failure */
1061 const struct SCSISense sense_code_LUN_FAILURE
= {
1062 .key
= ABORTED_COMMAND
, .asc
= 0x3e, .ascq
= 0x01
1065 /* Unit attention, Power on, reset or bus device reset occurred */
1066 const struct SCSISense sense_code_RESET
= {
1067 .key
= UNIT_ATTENTION
, .asc
= 0x29, .ascq
= 0x00
1070 /* Unit attention, No medium */
1071 const struct SCSISense sense_code_UNIT_ATTENTION_NO_MEDIUM
= {
1072 .key
= UNIT_ATTENTION
, .asc
= 0x3a, .ascq
= 0x00
1075 /* Unit attention, Medium may have changed */
1076 const struct SCSISense sense_code_MEDIUM_CHANGED
= {
1077 .key
= UNIT_ATTENTION
, .asc
= 0x28, .ascq
= 0x00
1080 /* Unit attention, Reported LUNs data has changed */
1081 const struct SCSISense sense_code_REPORTED_LUNS_CHANGED
= {
1082 .key
= UNIT_ATTENTION
, .asc
= 0x3f, .ascq
= 0x0e
1085 /* Unit attention, Device internal reset */
1086 const struct SCSISense sense_code_DEVICE_INTERNAL_RESET
= {
1087 .key
= UNIT_ATTENTION
, .asc
= 0x29, .ascq
= 0x04
1093 * Convert between fixed and descriptor sense buffers
1095 int scsi_build_sense(uint8_t *in_buf
, int in_len
,
1096 uint8_t *buf
, int len
, bool fixed
)
1100 if (!fixed
&& len
< 8) {
1105 sense
.key
= NO_SENSE
;
1109 fixed_in
= (in_buf
[0] & 2) == 0;
1111 if (fixed
== fixed_in
) {
1112 memcpy(buf
, in_buf
, MIN(len
, in_len
));
1113 return MIN(len
, in_len
);
1117 sense
.key
= in_buf
[2];
1118 sense
.asc
= in_buf
[12];
1119 sense
.ascq
= in_buf
[13];
1121 sense
.key
= in_buf
[1];
1122 sense
.asc
= in_buf
[2];
1123 sense
.ascq
= in_buf
[3];
1127 memset(buf
, 0, len
);
1129 /* Return fixed format sense buffer */
1133 buf
[12] = sense
.asc
;
1134 buf
[13] = sense
.ascq
;
1135 return MIN(len
, 18);
1137 /* Return descriptor format sense buffer */
1141 buf
[3] = sense
.ascq
;
1146 static const char *scsi_command_name(uint8_t cmd
)
1148 static const char *names
[] = {
1149 [ TEST_UNIT_READY
] = "TEST_UNIT_READY",
1150 [ REWIND
] = "REWIND",
1151 [ REQUEST_SENSE
] = "REQUEST_SENSE",
1152 [ FORMAT_UNIT
] = "FORMAT_UNIT",
1153 [ READ_BLOCK_LIMITS
] = "READ_BLOCK_LIMITS",
1154 [ REASSIGN_BLOCKS
] = "REASSIGN_BLOCKS",
1155 [ READ_6
] = "READ_6",
1156 [ WRITE_6
] = "WRITE_6",
1157 [ SET_CAPACITY
] = "SET_CAPACITY",
1158 [ READ_REVERSE
] = "READ_REVERSE",
1159 [ WRITE_FILEMARKS
] = "WRITE_FILEMARKS",
1160 [ SPACE
] = "SPACE",
1161 [ INQUIRY
] = "INQUIRY",
1162 [ RECOVER_BUFFERED_DATA
] = "RECOVER_BUFFERED_DATA",
1163 [ MAINTENANCE_IN
] = "MAINTENANCE_IN",
1164 [ MAINTENANCE_OUT
] = "MAINTENANCE_OUT",
1165 [ MODE_SELECT
] = "MODE_SELECT",
1166 [ RESERVE
] = "RESERVE",
1167 [ RELEASE
] = "RELEASE",
1169 [ ERASE
] = "ERASE",
1170 [ MODE_SENSE
] = "MODE_SENSE",
1171 [ START_STOP
] = "START_STOP",
1172 [ RECEIVE_DIAGNOSTIC
] = "RECEIVE_DIAGNOSTIC",
1173 [ SEND_DIAGNOSTIC
] = "SEND_DIAGNOSTIC",
1174 [ ALLOW_MEDIUM_REMOVAL
] = "ALLOW_MEDIUM_REMOVAL",
1175 [ READ_CAPACITY_10
] = "READ_CAPACITY_10",
1176 [ READ_10
] = "READ_10",
1177 [ WRITE_10
] = "WRITE_10",
1178 [ SEEK_10
] = "SEEK_10",
1179 [ WRITE_VERIFY_10
] = "WRITE_VERIFY_10",
1180 [ VERIFY_10
] = "VERIFY_10",
1181 [ SEARCH_HIGH
] = "SEARCH_HIGH",
1182 [ SEARCH_EQUAL
] = "SEARCH_EQUAL",
1183 [ SEARCH_LOW
] = "SEARCH_LOW",
1184 [ SET_LIMITS
] = "SET_LIMITS",
1185 [ PRE_FETCH
] = "PRE_FETCH/READ_POSITION",
1186 /* READ_POSITION and PRE_FETCH use the same operation code */
1187 [ SYNCHRONIZE_CACHE
] = "SYNCHRONIZE_CACHE",
1188 [ LOCK_UNLOCK_CACHE
] = "LOCK_UNLOCK_CACHE",
1189 [ READ_DEFECT_DATA
] = "READ_DEFECT_DATA",
1190 [ MEDIUM_SCAN
] = "MEDIUM_SCAN",
1191 [ COMPARE
] = "COMPARE",
1192 [ COPY_VERIFY
] = "COPY_VERIFY",
1193 [ WRITE_BUFFER
] = "WRITE_BUFFER",
1194 [ READ_BUFFER
] = "READ_BUFFER",
1195 [ UPDATE_BLOCK
] = "UPDATE_BLOCK",
1196 [ READ_LONG_10
] = "READ_LONG_10",
1197 [ WRITE_LONG_10
] = "WRITE_LONG_10",
1198 [ CHANGE_DEFINITION
] = "CHANGE_DEFINITION",
1199 [ WRITE_SAME_10
] = "WRITE_SAME_10",
1200 [ UNMAP
] = "UNMAP",
1201 [ READ_TOC
] = "READ_TOC",
1202 [ REPORT_DENSITY_SUPPORT
] = "REPORT_DENSITY_SUPPORT",
1203 [ SANITIZE
] = "SANITIZE",
1204 [ GET_CONFIGURATION
] = "GET_CONFIGURATION",
1205 [ LOG_SELECT
] = "LOG_SELECT",
1206 [ LOG_SENSE
] = "LOG_SENSE",
1207 [ MODE_SELECT_10
] = "MODE_SELECT_10",
1208 [ RESERVE_10
] = "RESERVE_10",
1209 [ RELEASE_10
] = "RELEASE_10",
1210 [ MODE_SENSE_10
] = "MODE_SENSE_10",
1211 [ PERSISTENT_RESERVE_IN
] = "PERSISTENT_RESERVE_IN",
1212 [ PERSISTENT_RESERVE_OUT
] = "PERSISTENT_RESERVE_OUT",
1213 [ WRITE_FILEMARKS_16
] = "WRITE_FILEMARKS_16",
1214 [ EXTENDED_COPY
] = "EXTENDED_COPY",
1215 [ ATA_PASSTHROUGH
] = "ATA_PASSTHROUGH",
1216 [ ACCESS_CONTROL_IN
] = "ACCESS_CONTROL_IN",
1217 [ ACCESS_CONTROL_OUT
] = "ACCESS_CONTROL_OUT",
1218 [ READ_16
] = "READ_16",
1219 [ COMPARE_AND_WRITE
] = "COMPARE_AND_WRITE",
1220 [ WRITE_16
] = "WRITE_16",
1221 [ WRITE_VERIFY_16
] = "WRITE_VERIFY_16",
1222 [ VERIFY_16
] = "VERIFY_16",
1223 [ PRE_FETCH_16
] = "PRE_FETCH_16",
1224 [ SYNCHRONIZE_CACHE_16
] = "SPACE_16/SYNCHRONIZE_CACHE_16",
1225 /* SPACE_16 and SYNCHRONIZE_CACHE_16 use the same operation code */
1226 [ LOCATE_16
] = "LOCATE_16",
1227 [ WRITE_SAME_16
] = "ERASE_16/WRITE_SAME_16",
1228 /* ERASE_16 and WRITE_SAME_16 use the same operation code */
1229 [ SERVICE_ACTION_IN_16
] = "SERVICE_ACTION_IN_16",
1230 [ WRITE_LONG_16
] = "WRITE_LONG_16",
1231 [ REPORT_LUNS
] = "REPORT_LUNS",
1232 [ BLANK
] = "BLANK",
1233 [ MOVE_MEDIUM
] = "MOVE_MEDIUM",
1234 [ LOAD_UNLOAD
] = "LOAD_UNLOAD",
1235 [ READ_12
] = "READ_12",
1236 [ WRITE_12
] = "WRITE_12",
1237 [ ERASE_12
] = "ERASE_12/GET_PERFORMANCE",
1238 /* ERASE_12 and GET_PERFORMANCE use the same operation code */
1239 [ SERVICE_ACTION_IN_12
] = "SERVICE_ACTION_IN_12",
1240 [ WRITE_VERIFY_12
] = "WRITE_VERIFY_12",
1241 [ VERIFY_12
] = "VERIFY_12",
1242 [ SEARCH_HIGH_12
] = "SEARCH_HIGH_12",
1243 [ SEARCH_EQUAL_12
] = "SEARCH_EQUAL_12",
1244 [ SEARCH_LOW_12
] = "SEARCH_LOW_12",
1245 [ READ_ELEMENT_STATUS
] = "READ_ELEMENT_STATUS",
1246 [ SEND_VOLUME_TAG
] = "SEND_VOLUME_TAG/SET_STREAMING",
1247 /* SEND_VOLUME_TAG and SET_STREAMING use the same operation code */
1248 [ READ_CD
] = "READ_CD",
1249 [ READ_DEFECT_DATA_12
] = "READ_DEFECT_DATA_12",
1250 [ READ_DVD_STRUCTURE
] = "READ_DVD_STRUCTURE",
1251 [ RESERVE_TRACK
] = "RESERVE_TRACK",
1252 [ SEND_CUE_SHEET
] = "SEND_CUE_SHEET",
1253 [ SEND_DVD_STRUCTURE
] = "SEND_DVD_STRUCTURE",
1254 [ SET_CD_SPEED
] = "SET_CD_SPEED",
1255 [ SET_READ_AHEAD
] = "SET_READ_AHEAD",
1256 [ ALLOW_OVERWRITE
] = "ALLOW_OVERWRITE",
1257 [ MECHANISM_STATUS
] = "MECHANISM_STATUS",
1260 if (cmd
>= ARRAY_SIZE(names
) || names
[cmd
] == NULL
)
1265 SCSIRequest
*scsi_req_ref(SCSIRequest
*req
)
1271 void scsi_req_unref(SCSIRequest
*req
)
1273 if (--req
->refcount
== 0) {
1274 if (req
->ops
->free_req
) {
1275 req
->ops
->free_req(req
);
1281 /* Tell the device that we finished processing this chunk of I/O. It
1282 will start the next chunk or complete the command. */
1283 void scsi_req_continue(SCSIRequest
*req
)
1285 trace_scsi_req_continue(req
->dev
->id
, req
->lun
, req
->tag
);
1286 if (req
->cmd
.mode
== SCSI_XFER_TO_DEV
) {
1287 req
->ops
->write_data(req
);
1289 req
->ops
->read_data(req
);
1293 /* Called by the devices when data is ready for the HBA. The HBA should
1294 start a DMA operation to read or fill the device's data buffer.
1295 Once it completes, calling scsi_req_continue will restart I/O. */
1296 void scsi_req_data(SCSIRequest
*req
, int len
)
1299 if (req
->io_canceled
) {
1300 trace_scsi_req_data_canceled(req
->dev
->id
, req
->lun
, req
->tag
, len
);
1303 trace_scsi_req_data(req
->dev
->id
, req
->lun
, req
->tag
, len
);
1304 assert(req
->cmd
.mode
!= SCSI_XFER_NONE
);
1307 req
->bus
->info
->transfer_data(req
, len
);
1311 /* If the device calls scsi_req_data and the HBA specified a
1312 * scatter/gather list, the transfer has to happen in a single
1314 assert(!req
->dma_started
);
1315 req
->dma_started
= true;
1317 buf
= scsi_req_get_buf(req
);
1318 if (req
->cmd
.mode
== SCSI_XFER_FROM_DEV
) {
1319 req
->resid
= dma_buf_read(buf
, len
, req
->sg
);
1321 req
->resid
= dma_buf_write(buf
, len
, req
->sg
);
1323 scsi_req_continue(req
);
1326 void scsi_req_print(SCSIRequest
*req
)
1331 fprintf(fp
, "[%s id=%d] %s",
1332 req
->dev
->qdev
.parent_bus
->name
,
1334 scsi_command_name(req
->cmd
.buf
[0]));
1335 for (i
= 1; i
< req
->cmd
.len
; i
++) {
1336 fprintf(fp
, " 0x%02x", req
->cmd
.buf
[i
]);
1338 switch (req
->cmd
.mode
) {
1339 case SCSI_XFER_NONE
:
1340 fprintf(fp
, " - none\n");
1342 case SCSI_XFER_FROM_DEV
:
1343 fprintf(fp
, " - from-dev len=%zd\n", req
->cmd
.xfer
);
1345 case SCSI_XFER_TO_DEV
:
1346 fprintf(fp
, " - to-dev len=%zd\n", req
->cmd
.xfer
);
1349 fprintf(fp
, " - Oops\n");
1354 void scsi_req_complete(SCSIRequest
*req
, int status
)
1356 assert(req
->status
== -1);
1357 req
->status
= status
;
1359 assert(req
->sense_len
< sizeof(req
->sense
));
1360 if (status
== GOOD
) {
1364 if (req
->sense_len
) {
1365 memcpy(req
->dev
->sense
, req
->sense
, req
->sense_len
);
1366 req
->dev
->sense_len
= req
->sense_len
;
1367 req
->dev
->sense_is_ua
= (req
->ops
== &reqops_unit_attention
);
1369 req
->dev
->sense_len
= 0;
1370 req
->dev
->sense_is_ua
= false;
1374 * Unit attention state is now stored in the device's sense buffer
1375 * if the HBA didn't do autosense. Clear the pending unit attention
1378 scsi_clear_unit_attention(req
);
1381 scsi_req_dequeue(req
);
1382 req
->bus
->info
->complete(req
, req
->status
, req
->resid
);
1383 scsi_req_unref(req
);
1386 void scsi_req_cancel(SCSIRequest
*req
)
1388 if (!req
->enqueued
) {
1392 scsi_req_dequeue(req
);
1393 req
->io_canceled
= true;
1394 if (req
->ops
->cancel_io
) {
1395 req
->ops
->cancel_io(req
);
1397 if (req
->bus
->info
->cancel
) {
1398 req
->bus
->info
->cancel(req
);
1400 scsi_req_unref(req
);
1403 void scsi_req_abort(SCSIRequest
*req
, int status
)
1405 if (!req
->enqueued
) {
1409 scsi_req_dequeue(req
);
1410 req
->io_canceled
= true;
1411 if (req
->ops
->cancel_io
) {
1412 req
->ops
->cancel_io(req
);
1414 scsi_req_complete(req
, status
);
1415 scsi_req_unref(req
);
1418 void scsi_device_purge_requests(SCSIDevice
*sdev
, SCSISense sense
)
1422 while (!QTAILQ_EMPTY(&sdev
->requests
)) {
1423 req
= QTAILQ_FIRST(&sdev
->requests
);
1424 scsi_req_cancel(req
);
1426 sdev
->unit_attention
= sense
;
1429 static char *scsibus_get_dev_path(DeviceState
*dev
)
1431 SCSIDevice
*d
= DO_UPCAST(SCSIDevice
, qdev
, dev
);
1432 DeviceState
*hba
= dev
->parent_bus
->parent
;
1436 if (hba
&& hba
->parent_bus
&& hba
->parent_bus
->info
->get_dev_path
) {
1437 id
= hba
->parent_bus
->info
->get_dev_path(hba
);
1440 path
= g_strdup_printf("%s/%d:%d:%d", id
, d
->channel
, d
->id
, d
->lun
);
1442 path
= g_strdup_printf("%d:%d:%d", d
->channel
, d
->id
, d
->lun
);
1448 static char *scsibus_get_fw_dev_path(DeviceState
*dev
)
1450 SCSIDevice
*d
= SCSI_DEVICE(dev
);
1453 snprintf(path
, sizeof(path
), "channel@%x/%s@%x,%x", d
->channel
,
1454 qdev_fw_name(dev
), d
->id
, d
->lun
);
1456 return strdup(path
);
1459 SCSIDevice
*scsi_device_find(SCSIBus
*bus
, int channel
, int id
, int lun
)
1462 SCSIDevice
*target_dev
= NULL
;
1464 QTAILQ_FOREACH_REVERSE(qdev
, &bus
->qbus
.children
, ChildrenHead
, sibling
) {
1465 SCSIDevice
*dev
= SCSI_DEVICE(qdev
);
1467 if (dev
->channel
== channel
&& dev
->id
== id
) {
1468 if (dev
->lun
== lun
) {
1477 /* SCSI request list. For simplicity, pv points to the whole device */
1479 static void put_scsi_requests(QEMUFile
*f
, void *pv
, size_t size
)
1482 SCSIBus
*bus
= DO_UPCAST(SCSIBus
, qbus
, s
->qdev
.parent_bus
);
1485 QTAILQ_FOREACH(req
, &s
->requests
, next
) {
1486 assert(!req
->io_canceled
);
1487 assert(req
->status
== -1);
1489 assert(req
->enqueued
);
1491 qemu_put_sbyte(f
, 1);
1492 qemu_put_buffer(f
, req
->cmd
.buf
, sizeof(req
->cmd
.buf
));
1493 qemu_put_be32s(f
, &req
->tag
);
1494 qemu_put_be32s(f
, &req
->lun
);
1495 if (bus
->info
->save_request
) {
1496 bus
->info
->save_request(f
, req
);
1498 if (req
->ops
->save_request
) {
1499 req
->ops
->save_request(f
, req
);
1502 qemu_put_sbyte(f
, 0);
1505 static int get_scsi_requests(QEMUFile
*f
, void *pv
, size_t size
)
1508 SCSIBus
*bus
= DO_UPCAST(SCSIBus
, qbus
, s
->qdev
.parent_bus
);
1510 while (qemu_get_sbyte(f
)) {
1511 uint8_t buf
[SCSI_CMD_BUF_SIZE
];
1516 qemu_get_buffer(f
, buf
, sizeof(buf
));
1517 qemu_get_be32s(f
, &tag
);
1518 qemu_get_be32s(f
, &lun
);
1519 req
= scsi_req_new(s
, tag
, lun
, buf
, NULL
);
1520 if (bus
->info
->load_request
) {
1521 req
->hba_private
= bus
->info
->load_request(f
, req
);
1523 if (req
->ops
->load_request
) {
1524 req
->ops
->load_request(f
, req
);
1527 /* Just restart it later. */
1529 scsi_req_enqueue_internal(req
);
1531 /* At this point, the request will be kept alive by the reference
1532 * added by scsi_req_enqueue_internal, so we can release our reference.
1533 * The HBA of course will add its own reference in the load_request
1534 * callback if it needs to hold on the SCSIRequest.
1536 scsi_req_unref(req
);
1542 const VMStateInfo vmstate_info_scsi_requests
= {
1543 .name
= "scsi-requests",
1544 .get
= get_scsi_requests
,
1545 .put
= put_scsi_requests
,
1548 const VMStateDescription vmstate_scsi_device
= {
1549 .name
= "SCSIDevice",
1551 .minimum_version_id
= 1,
1552 .minimum_version_id_old
= 1,
1553 .fields
= (VMStateField
[]) {
1554 VMSTATE_UINT8(unit_attention
.key
, SCSIDevice
),
1555 VMSTATE_UINT8(unit_attention
.asc
, SCSIDevice
),
1556 VMSTATE_UINT8(unit_attention
.ascq
, SCSIDevice
),
1557 VMSTATE_BOOL(sense_is_ua
, SCSIDevice
),
1558 VMSTATE_UINT8_ARRAY(sense
, SCSIDevice
, SCSI_SENSE_BUF_SIZE
),
1559 VMSTATE_UINT32(sense_len
, SCSIDevice
),
1563 .field_exists
= NULL
,
1564 .size
= 0, /* ouch */
1565 .info
= &vmstate_info_scsi_requests
,
1566 .flags
= VMS_SINGLE
,
1569 VMSTATE_END_OF_LIST()
1573 static void scsi_device_class_init(ObjectClass
*klass
, void *data
)
1575 DeviceClass
*k
= DEVICE_CLASS(klass
);
1576 k
->bus_info
= &scsi_bus_info
;
1577 k
->init
= scsi_qdev_init
;
1578 k
->unplug
= qdev_simple_unplug_cb
;
1579 k
->exit
= scsi_qdev_exit
;
1582 static TypeInfo scsi_device_type_info
= {
1583 .name
= TYPE_SCSI_DEVICE
,
1584 .parent
= TYPE_DEVICE
,
1585 .instance_size
= sizeof(SCSIDevice
),
1587 .class_size
= sizeof(SCSIDeviceClass
),
1588 .class_init
= scsi_device_class_init
,
1591 static void scsi_register_types(void)
1593 type_register_static(&scsi_device_type_info
);
1596 type_init(scsi_register_types
)