[libvirt] [PULL 1/3] 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(a)redhat.com&gt; Reviewed-by: Paolo Bonzini <pbonzini(a)redhat.com&gt; Reviewed-by: Christoph Hellwig <hch(a)lst.de&gt; Reviewed-by: Thomas Huth <thuth(a)redhat.com&gt; Message-id: 20191213144626.1208237-1-stefanha(a)redhat.com Message-Id: <20191213144626.1208237-1-stefanha(a)redhat.com&gt; Signed-off-by: Stefan Hajnoczi <stefanha(a)redhat.com&gt; --- qemu-deprecated.texi | 11 +++++++++++ 1 file changed, 11 insertions(+) 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) -- 2.23.0