diff options
Diffstat (limited to 'hw/scsi/scsi-disk.c')
| -rw-r--r-- | hw/scsi/scsi-disk.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c index 2672730eca..b1d08bfba5 100644 --- a/hw/scsi/scsi-disk.c +++ b/hw/scsi/scsi-disk.c @@ -1279,10 +1279,27 @@ static int scsi_disk_emulate_mode_sense(SCSIDiskReq *r, uint8_t *outbuf) dev_specific_param |= 0x80; /* Readonly. */ } } else { - /* MMC prescribes that CD/DVD drives have no block descriptors, - * and defines no device-specific parameter. */ - dev_specific_param = 0x00; - dbd = true; + if (s->quirks & (1 << SCSI_DISK_QUIRK_MODE_SENSE_ROM_USE_DBD)) { + /* Use DBD from the request... */ + dev_specific_param = 0x00; + + /* + * ... unless we receive a request for MODE_PAGE_APPLE_VENDOR + * which should never return a block descriptor even though DBD is + * not set, otherwise CDROM detection fails in MacOS + */ + if (s->quirks & (1 << SCSI_DISK_QUIRK_MODE_PAGE_APPLE_VENDOR) && + page == MODE_PAGE_APPLE_VENDOR) { + dbd = true; + } + } else { + /* + * MMC prescribes that CD/DVD drives have no block descriptors, + * and defines no device-specific parameter. + */ + dev_specific_param = 0x00; + dbd = true; + } } if (r->req.cmd.buf[0] == MODE_SENSE) { @@ -3102,6 +3119,8 @@ static Property scsi_cd_properties[] = { 5), DEFINE_PROP_BIT("quirk_mode_page_apple_vendor", SCSIDiskState, quirks, SCSI_DISK_QUIRK_MODE_PAGE_APPLE_VENDOR, 0), + DEFINE_PROP_BIT("quirk_mode_sense_rom_use_dbd", SCSIDiskState, quirks, + SCSI_DISK_QUIRK_MODE_SENSE_ROM_USE_DBD, 0), DEFINE_PROP_END_OF_LIST(), }; |