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When A/UX configures the CDROM device it sends a truncated MODE SELECT request for page 1 (MODE_PAGE_R_W_ERROR) which is only 6 bytes in length rather than 10. This seems to be due to bug in Apple's code which calculates the CDB message length incorrectly. The work at [1] suggests that this truncated request is accepted on real hardware whereas in QEMU it generates an INVALID_PARAM_LEN sense code which causes A/UX to get stuck in a loop retrying the command in an attempt to succeed. Alter the mode page request length check so that truncated requests are allowed if the SCSI_DISK_QUIRK_MODE_PAGE_TRUNCATED quirk is enabled, whilst also adding a trace event to enable the condition to be detected. [1] https://68kmla.org/bb/index.php?threads/scsi2sd-project-anyone-interested.29040/page-7#post-316444 Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> Message-Id: <20220622105314.802852-10-mark.cave-ayland@ilande.co.uk> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> |
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| block | ||
| chardev | ||
| crypto | ||
| disas | ||
| exec | ||
| fpu | ||
| hw | ||
| io | ||
| libdecnumber | ||
| migration | ||
| monitor | ||
| net | ||
| qapi | ||
| qemu | ||
| qom | ||
| scsi | ||
| semihosting | ||
| standard-headers | ||
| sysemu | ||
| tcg | ||
| ui | ||
| user | ||
| elf.h | ||
| glib-compat.h | ||
| qemu-io.h | ||
| qemu-main.h | ||