diff options
| -rw-r--r-- | hw/scsi-bus.c | 5 | ||||
| -rw-r--r-- | hw/scsi-disk.c | 15 | ||||
| -rw-r--r-- | hw/scsi.h | 2 |
3 files changed, 19 insertions, 3 deletions
diff --git a/hw/scsi-bus.c b/hw/scsi-bus.c index efbda6f877..dd0cdd0570 100644 --- a/hw/scsi-bus.c +++ b/hw/scsi-bus.c @@ -1182,6 +1182,11 @@ const struct SCSISense sense_code_DEVICE_INTERNAL_RESET = { .key = UNIT_ATTENTION, .asc = 0x29, .ascq = 0x04 }; +/* Data Protection, Write Protected */ +const struct SCSISense sense_code_WRITE_PROTECTED = { + .key = DATA_PROTECT, .asc = 0x27, .ascq = 0x00 +}; + /* * scsi_build_sense * diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c index 3c03159c1f..fb0540a3a4 100644 --- a/hw/scsi-disk.c +++ b/hw/scsi-disk.c @@ -1702,6 +1702,10 @@ static int32_t scsi_disk_emulate_command(SCSIRequest *req, uint8_t *buf) case WRITE_SAME_16: nb_sectors = ldl_be_p(&req->cmd.buf[10]) & 0xffffffffULL; write_same: + if (bdrv_is_read_only(s->qdev.conf.bs)) { + scsi_check_condition(r, SENSE_CODE(WRITE_PROTECTED)); + return 0; + } if (r->req.cmd.lba > s->qdev.max_lba) { goto illegal_lba; } @@ -1784,9 +1788,6 @@ static int32_t scsi_disk_dma_command(SCSIRequest *req, uint8_t *buf) r->sector = r->req.cmd.lba * (s->qdev.blocksize / 512); r->sector_count = len * (s->qdev.blocksize / 512); break; - case VERIFY_10: - case VERIFY_12: - case VERIFY_16: case WRITE_6: case WRITE_10: case WRITE_12: @@ -1794,6 +1795,14 @@ static int32_t scsi_disk_dma_command(SCSIRequest *req, uint8_t *buf) case WRITE_VERIFY_10: case WRITE_VERIFY_12: case WRITE_VERIFY_16: + if (bdrv_is_read_only(s->qdev.conf.bs)) { + scsi_check_condition(r, SENSE_CODE(WRITE_PROTECTED)); + return 0; + } + /* fallthrough */ + case VERIFY_10: + case VERIFY_12: + case VERIFY_16: len = r->req.cmd.xfer / s->qdev.blocksize; DPRINTF("Write %s(sector %" PRId64 ", count %d)\n", (command & 0xe) == 0xe ? "And Verify " : "", @@ -208,6 +208,8 @@ extern const struct SCSISense sense_code_MEDIUM_CHANGED; extern const struct SCSISense sense_code_REPORTED_LUNS_CHANGED; /* Unit attention, Device internal reset */ extern const struct SCSISense sense_code_DEVICE_INTERNAL_RESET; +/* Data Protection, Write Protected */ +extern const struct SCSISense sense_code_WRITE_PROTECTED; #define SENSE_CODE(x) sense_code_ ## x |