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[PULL 1/3] virtio-blk: deprecate SCSI passthrough
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From: |
Stefan Hajnoczi |
|
Subject: |
[PULL 1/3] virtio-blk: deprecate SCSI passthrough |
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Date: |
Fri, 20 Dec 2019 10:25:18 +0000 |
The Linux virtio_blk.ko guest driver is removing legacy SCSI passthrough
support. Deprecate this feature in QEMU too.
Signed-off-by: Stefan Hajnoczi <address@hidden>
Reviewed-by: Paolo Bonzini <address@hidden>
Reviewed-by: Christoph Hellwig <address@hidden>
Reviewed-by: Thomas Huth <address@hidden>
Message-id: address@hidden
Message-Id: <address@hidden>
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
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