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From: Tom Yan <tom.ty89@gmail.com>
To: qemu-devel@nongnu.org
Cc: Tom Yan <tom.ty89@gmail.com>
Subject: [PATCH] virtio-blk: change default config-wce to false
Date: Tue, 15 Dec 2020 00:51:11 +0800	[thread overview]
Message-ID: <20201214165111.5653-1-tom.ty89@gmail.com> (raw)

This would allow `cache=` to be respected when `if=virtio` is used
(instead of `-device virtio-blk-pci`). Since `cache=writeback` is
the default, this does not cause a change in the default behavior.

Also, when `config-wce` is true, `cache.writeback` is still overriden.

Signed-off-by: Tom Yan <tom.ty89@gmail.com>
---
 hw/block/virtio-blk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
index bac2d6fa2b..0c2ecd22bc 100644
--- a/hw/block/virtio-blk.c
+++ b/hw/block/virtio-blk.c
@@ -1284,7 +1284,7 @@ static Property virtio_blk_properties[] = {
     DEFINE_BLOCK_CHS_PROPERTIES(VirtIOBlock, conf.conf),
     DEFINE_PROP_STRING("serial", VirtIOBlock, conf.serial),
     DEFINE_PROP_BIT64("config-wce", VirtIOBlock, host_features,
-                      VIRTIO_BLK_F_CONFIG_WCE, true),
+                      VIRTIO_BLK_F_CONFIG_WCE, false),
 #ifdef __linux__
     DEFINE_PROP_BIT64("scsi", VirtIOBlock, host_features,
                       VIRTIO_BLK_F_SCSI, false),
-- 
2.29.2



                 reply	other threads:[~2020-12-14 16:53 UTC|newest]

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