[PATCH v3 11/14] scsi-disk: allow the MODE_PAGE_R_W_ERROR AWRE bit to be changeable for CDROM drives

[Mark Cave-Ayland]

A/UX sends a MODE_PAGE_R_W_ERROR command with the AWRE bit set to 0 when 
enumerating
CDROM drives. Since the bit is currently hardcoded to 1 then indicate that the 
AWRE
bit can be changed (even though we don't care about the value) so that
the MODE_PAGE_R_W_ERROR page can be set successfully.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
---
 hw/scsi/scsi-disk.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
index b225ec1a4c..3659583e13 100644
--- a/hw/scsi/scsi-disk.c
+++ b/hw/scsi/scsi-disk.c
@@ -1188,6 +1188,10 @@ static int mode_sense_page(SCSIDiskState *s, int page, 
uint8_t **p_outbuf,
     case MODE_PAGE_R_W_ERROR:
         length = 10;
         if (page_control == 1) { /* Changeable Values */
+            if (s->qdev.type == TYPE_ROM) {
+                /* Automatic Write Reallocation Enabled */
+                p[0] = 0x80;
+            }
             break;
         }
         p[0] = 0x80; /* Automatic Write Reallocation Enabled */
-- 
2.30.2