diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2019-12-13 14:46:26 +0000 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2019-12-19 16:20:21 +0000 |
| commit | 5847c750f3d31959022cc67a03870ba1a229d59b (patch) | |
| tree | 01b552115512cd7acbfbc2872fd4e052bc68e1c2 /qemu-deprecated.texi | |
| parent | aceeaa69d28e6f08a24395d0aa6915b687d0a681 (diff) | |
virtio-blk: deprecate SCSI passthrough
The Linux virtio_blk.ko guest driver is removing legacy SCSI passthrough
support. Deprecate this feature in QEMU too.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20191213144626.1208237-1-stefanha@redhat.com
Message-Id: <20191213144626.1208237-1-stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'qemu-deprecated.texi')
| -rw-r--r-- | qemu-deprecated.texi | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/qemu-deprecated.texi b/qemu-deprecated.texi index 62680f7bd5..259cb9ce9e 100644 --- a/qemu-deprecated.texi +++ b/qemu-deprecated.texi @@ -278,6 +278,17 @@ spec you can use the ``-cpu rv64gcsu,priv_spec=v1.9.1`` command line argument. @section Device options +@subsection Emulated device options + +@subsubsection -device virtio-blk,scsi=on|off (since 5.0.0) + +The virtio-blk SCSI passthrough feature is a legacy VIRTIO feature. VIRTIO 1.0 +and later do not support it because the virtio-scsi device was introduced for +full SCSI support. Use virtio-scsi instead when SCSI passthrough is required. + +Note this also applies to ``-device virtio-blk-pci,scsi=on|off'', which is an +alias. + @subsection Block device options @subsubsection "backing": "" (since 2.12.0) |