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| author | Hannes Reinecke <hare@suse.de> | 2017-08-18 11:37:02 +0200 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2017-09-19 14:09:11 +0200 |
| commit | b07fbce6349c7b84642e7ed56c7a1ac3c1caca61 (patch) | |
| tree | d16102018467a985ab1a1bec1e73fd3885751a24 /hw/scsi | |
| parent | 5c0919d02066c3d0eb896c33265ad90101a6a84a (diff) | |
| download | focaccia-qemu-b07fbce6349c7b84642e7ed56c7a1ac3c1caca61.tar.gz focaccia-qemu-b07fbce6349c7b84642e7ed56c7a1ac3c1caca61.zip | |
scsi-bus: correct responses for INQUIRY and REQUEST SENSE
According to SPC-3 INQUIRY and REQUEST SENSE should return GOOD even on unsupported LUNS. Signed-off-by: Hannes Reinecke <hare@suse.com> Message-Id: <1503049022-14749-1-git-send-email-hare@suse.de> Reported-by: Laszlo Ersek <lersek@redhat.com> Fixes: ded6ddc5a7b95217557fa360913d1213e12d4a6d Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Hannes Reinecke <hare@suse.de>
Diffstat (limited to 'hw/scsi')
| -rw-r--r-- | hw/scsi/scsi-bus.c | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c index e364410a23..ade31c11f5 100644 --- a/hw/scsi/scsi-bus.c +++ b/hw/scsi/scsi-bus.c @@ -516,8 +516,10 @@ static size_t scsi_sense_len(SCSIRequest *req) static int32_t scsi_target_send_command(SCSIRequest *req, uint8_t *buf) { SCSITargetReq *r = DO_UPCAST(SCSITargetReq, req, req); + int fixed_sense = (req->cmd.buf[1] & 1) == 0; - if (req->lun != 0) { + if (req->lun != 0 && + buf[0] != INQUIRY && buf[0] != REQUEST_SENSE) { scsi_req_build_sense(req, SENSE_CODE(LUN_NOT_SUPPORTED)); scsi_req_complete(req, CHECK_CONDITION); return 0; @@ -535,9 +537,28 @@ static int32_t scsi_target_send_command(SCSIRequest *req, uint8_t *buf) break; case REQUEST_SENSE: scsi_target_alloc_buf(&r->req, scsi_sense_len(req)); - r->len = scsi_device_get_sense(r->req.dev, r->buf, - MIN(req->cmd.xfer, r->buf_len), - (req->cmd.buf[1] & 1) == 0); + if (req->lun != 0) { + const struct SCSISense sense = SENSE_CODE(LUN_NOT_SUPPORTED); + + if (fixed_sense) { + r->buf[0] = 0x70; + r->buf[2] = sense.key; + r->buf[10] = 10; + r->buf[12] = sense.asc; + r->buf[13] = sense.ascq; + r->len = MIN(req->cmd.xfer, SCSI_SENSE_LEN); + } else { + r->buf[0] = 0x72; + r->buf[1] = sense.key; + r->buf[2] = sense.asc; + r->buf[3] = sense.ascq; + r->len = 8; + } + } else { + r->len = scsi_device_get_sense(r->req.dev, r->buf, + MIN(req->cmd.xfer, r->buf_len), + fixed_sense); + } if (r->req.dev->sense_is_ua) { scsi_device_unit_attention_reported(req->dev); r->req.dev->sense_len = 0; |