From: Stefan Hajnoczi <stefanha@redhat.com>
To: qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>,
Peter Maydell <peter.maydell@linaro.org>,
Thomas Huth <thuth@redhat.com>,
Eduardo Habkost <ehabkost@redhat.com>,
qemu-block@nongnu.org, libvir-list@redhat.com,
Jason Wang <jasowang@redhat.com>, Max Reitz <mreitz@redhat.com>,
Stefan Hajnoczi <stefanha@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Christoph Hellwig <hch@lst.de>
Subject: [PULL 1/3] virtio-blk: deprecate SCSI passthrough
Date: Fri, 20 Dec 2019 10:25:18 +0000 [thread overview]
Message-ID: <20191220102520.1637190-2-stefanha@redhat.com> (raw)
In-Reply-To: <20191220102520.1637190-1-stefanha@redhat.com>
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>
---
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
next prev parent reply other threads:[~2019-12-20 10:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-20 10:25 [PULL 0/3] Block patches Stefan Hajnoczi
2019-12-20 10:25 ` Stefan Hajnoczi [this message]
2019-12-20 10:25 ` [PULL 2/3] docs: fix rst syntax errors in unbuilt docs Stefan Hajnoczi
2019-12-20 10:25 ` [PULL 3/3] virtio-blk: fix out-of-bounds access to bitmap in notify_guest_bh Stefan Hajnoczi
2020-01-03 18:50 ` [PULL 0/3] Block patches Peter Maydell
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