Changeset 64806 in vbox for trunk/src/VBox

Timestamp:

Dec 8, 2016 9:10:30 AM (8 years ago)

Author:

vboxsync

Message:

BusLogic: Pretend to not have a guest buffer when the SCSI command is TEST UNIT READY (extending the hack for NT to the method to query the guest buffer size)

File:

• trunk/src/VBox/Devices/Storage/DevBusLogic.cpp (modified) (1 diff)

trunk/src/VBox/Devices/Storage/DevBusLogic.cpp

@@ -1406 +1406 @@
         cbDataCCB       = pCCBGuest->n.cbData;
     }
+
+#if 1
+    /* Hack for NT 10/91: A CCB describes a 2K buffer, but TEST UNIT READY is executed. This command
+     * returns no data, hence the buffer must be left alone!
+     */
+    if (pCCBGuest->c.abCDB[0] == 0)
+        cbDataCCB = 0;
+#endif
 
     if (   (pCCBGuest->c.uDataDirection != BUSLOGIC_CCB_DIRECTION_NO_DATA)