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From 5c520d5572b0c7974bc71e89d5d5a77d9d0d9284 Mon Sep 17 00:00:00 2001
From: John Snow <>
Date: Wed, 10 Oct 2018 20:30:15 +0100
Subject: [PATCH 3/4] block/rbd: add deprecation documentation for filename
 keyvalue pairs

RH-Author: John Snow <>
Message-id: <>
Patchwork-id: 82625
O-Subject: [RHEL8/rhel qemu-kvm PATCH 4/4] block/rbd: add deprecation documentation for filename keyvalue pairs
Bugzilla: 1635585
RH-Acked-by: Markus Armbruster <>
RH-Acked-by: Stefan Hajnoczi <>
RH-Acked-by: Thomas Huth <>

From: Jeff Cody <>

Signed-off-by: Jeff Cody <>
Signed-off-by: Jeff Cody <>
(cherry picked from commit 3bebd37e04f972775b1ece1bdda95451bc9fb14c)
Signed-off-by: John Snow <>
Signed-off-by: Danilo C. L. de Paula <>

  qemu-deprecated.texi: not yet factored out as of 2.12.0;
                        docs added to qemu-doc.texi instead.
Signed-off-by: John Snow <>
 qemu-doc.texi | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/qemu-doc.texi b/qemu-doc.texi
index 985e0f2..0013170 100644
--- a/qemu-doc.texi
+++ b/qemu-doc.texi
@@ -2982,6 +2982,21 @@ The ``xlnx-zcu102'' machine has the same features and capabilites in QEMU.
 In order to prevent QEMU from automatically opening an image's backing
 chain, use ``"backing": null'' instead.
+@subsubsection rbd keyvalue pair encoded filenames: "" (since 3.1.0)
+Options for ``rbd'' should be specified according to its runtime options,
+like other block drivers.  Legacy parsing of keyvalue pair encoded
+filenames is useful to open images with the old format for backing files;
+These image files should be updated to use the current format.
+Example of legacy encoding:
+@code{json:@{"file.driver":"rbd", "file.filename":"rbd:rbd/name"@}}
+The above, converted to the current supported format:
+@code{json:@{"file.driver":"rbd", "file.pool":"rbd", "file.image":"name"@}}
 @node License
 @appendix License