One of the mechanisms MacOS uses to identify drives compatible with MacOS is to
send a custom MODE SELECT command for page 0x30 to the drive. The response to
this is a hard-coded manufacturer string which must match in order for the
drive to be usable within MacOS.
Add an implementation of the MODE SELECT page 0x30 response guarded by a newly
defined SCSI_DISK_QUIRK_MODE_PAGE_APPLE_VENDOR quirk bit so that drives attached
to non-Apple machines function exactly as before.
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
---
hw/scsi/scsi-disk.c | 17 +++++++++++++++++
include/hw/scsi/scsi.h | 3 +++
include/scsi/constants.h | 1 +
3 files changed, 21 insertions(+)
diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
index d89cdd4e4a..5de4506b97 100644
--- a/hw/scsi/scsi-disk.c
+++ b/hw/scsi/scsi-disk.c
@@ -1085,6 +1085,7 @@ static int mode_sense_page(SCSIDiskState *s, int page,
uint8_t **p_outbuf,
[MODE_PAGE_R_W_ERROR] = (1 << TYPE_DISK) | (1 <<
TYPE_ROM),
[MODE_PAGE_AUDIO_CTL] = (1 << TYPE_ROM),
[MODE_PAGE_CAPABILITIES] = (1 << TYPE_ROM),
+ [MODE_PAGE_APPLE_VENDOR] = (1 << TYPE_ROM),
};
uint8_t *p = *p_outbuf + 2;
@@ -1229,6 +1230,20 @@ static int mode_sense_page(SCSIDiskState *s, int page,
uint8_t **p_outbuf,
p[19] = (16 * 176) & 0xff;
break;
+ case MODE_PAGE_APPLE_VENDOR:
+ if (s->quirks & (1 << SCSI_DISK_QUIRK_MODE_PAGE_APPLE_VENDOR)) {
+ length = 0x24;
+ if (page_control == 1) { /* Changeable Values */
+ break;
+ }
+
+ memset(p, 0, length);
+ strcpy((char *)p + 8, "APPLE COMPUTER, INC ");
+ break;
+ } else {
+ return -1;
+ }
+
default:
return -1;
}
@@ -3042,6 +3057,8 @@ static Property scsi_hd_properties[] = {
DEFINE_PROP_UINT16("rotation_rate", SCSIDiskState, rotation_rate, 0),
DEFINE_PROP_INT32("scsi_version", SCSIDiskState,
qdev.default_scsi_version,
5),
+ DEFINE_PROP_BIT("quirk_mode_page_apple_vendor", SCSIDiskState, quirks,
+ SCSI_DISK_QUIRK_MODE_PAGE_APPLE_VENDOR, 0),
DEFINE_BLOCK_CHS_PROPERTIES(SCSIDiskState, qdev.conf),
DEFINE_PROP_END_OF_LIST(),
};
diff --git a/include/hw/scsi/scsi.h b/include/hw/scsi/scsi.h
index 1ffb367f94..975d462347 100644
--- a/include/hw/scsi/scsi.h
+++ b/include/hw/scsi/scsi.h
@@ -226,4 +226,7 @@ SCSIDevice *scsi_device_get(SCSIBus *bus, int channel, int
target, int lun);
/* scsi-generic.c. */
extern const SCSIReqOps scsi_generic_req_ops;
+/* scsi-disk.c */
+#define SCSI_DISK_QUIRK_MODE_PAGE_APPLE_VENDOR 0
+
#endif
diff --git a/include/scsi/constants.h b/include/scsi/constants.h
index 2a32c08b5e..891aa0f45c 100644
--- a/include/scsi/constants.h
+++ b/include/scsi/constants.h
@@ -234,6 +234,7 @@
#define MODE_PAGE_FAULT_FAIL 0x1c
#define MODE_PAGE_TO_PROTECT 0x1d
#define MODE_PAGE_CAPABILITIES 0x2a
+#define MODE_PAGE_APPLE_VENDOR 0x30
#define MODE_PAGE_ALLS 0x3f
/* Not in Mt. Fuji, but in ATAPI 2.6 -- deprecated now in favor
* of MODE_PAGE_SENSE_POWER */