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[Qemu-devel] [PATCH v2 3/3] virtio-blk: switch off scsi-passthrough by d


From: Cornelia Huck
Subject: [Qemu-devel] [PATCH v2 3/3] virtio-blk: switch off scsi-passthrough by default
Date: Fri, 16 Oct 2015 12:25:54 +0200

Devices that are compliant with virtio-1 do not support scsi
passthrough any more (and it has not been a recommended setup
anyway for quite some time). To avoid having to switch it off
explicitly in newer qemus that turn on virtio-1 by default, let's
switch the default to scsi=false for 2.5.

Signed-off-by: Cornelia Huck <address@hidden>
---
 hw/block/virtio-blk.c | 2 +-
 include/hw/compat.h   | 6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
index 8beb26b..999dbd7 100644
--- a/hw/block/virtio-blk.c
+++ b/hw/block/virtio-blk.c
@@ -975,7 +975,7 @@ static Property virtio_blk_properties[] = {
     DEFINE_PROP_STRING("serial", VirtIOBlock, conf.serial),
     DEFINE_PROP_BIT("config-wce", VirtIOBlock, conf.config_wce, 0, true),
 #ifdef __linux__
-    DEFINE_PROP_BIT("scsi", VirtIOBlock, conf.scsi, 0, true),
+    DEFINE_PROP_BIT("scsi", VirtIOBlock, conf.scsi, 0, false),
 #endif
     DEFINE_PROP_BIT("request-merging", VirtIOBlock, conf.request_merging, 0,
                     true),
diff --git a/include/hw/compat.h b/include/hw/compat.h
index 095de5d..93e71af 100644
--- a/include/hw/compat.h
+++ b/include/hw/compat.h
@@ -2,7 +2,11 @@
 #define HW_COMPAT_H
 
 #define HW_COMPAT_2_4 \
-        /* empty */
+        {\
+            .driver   = "virtio-blk-device",\
+            .property = "scsi",\
+            .value    = "true",\
+        },
 
 #define HW_COMPAT_2_3 \
         {\
-- 
2.3.9




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