From 6a2de0f2038349716049c9b9a972d6777c85424b Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu, 19 Apr 2012 10:28:15 +0200
Subject: [PATCH] scsi: advertise DPOFUA
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
hw/scsi-disk.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c
index 2d9ac2d2a8..fca31fa6e7 100644
--- a/hw/scsi-disk.c
+++ b/hw/scsi-disk.c
@@ -1093,14 +1093,15 @@ static int scsi_disk_emulate_mode_sense(SCSIDiskReq *r, uint8_t *outbuf)
memset(outbuf, 0, r->req.cmd.xfer);
p = outbuf;
- dev_specific_param = 0x00;
if (s->qdev.type == TYPE_DISK) {
+ dev_specific_param = 0x10; /* DPOFUA */
if (bdrv_is_read_only(s->qdev.conf.bs)) {
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;
}