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docs/about: Belatedly document tightening of QMP device_add checking

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Commit 4d8b0f0a95 (v6.2.0) deprecated incorrectly typed device_add
arguments.  Commit be93fd5372 (qdev-monitor: avoid QemuOpts in QMP
device_add) fixed them for v9.2.0, but neglected to update
documentation.  Do that now.

Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <20250521063711.29840-2-armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
[Commit message typo corrected]
This commit is contained in:
Markus Armbruster 2025-05-21 08:37:08 +02:00
parent 80db93b2b8
commit 428d1789df
2 changed files with 9 additions and 14 deletions
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14
docs/about/deprecated.rst
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@ -187,20 +187,6 @@ threads (for example, it only reports source side of multifd threads,
without reporting any destination threads, or non-multifd source threads).
For debugging purpose, please use ``-name $VM,debug-threads=on`` instead.
Incorrectly typed ``device_add`` arguments (since 6.2)
''''''''''''''''''''''''''''''''''''''''''''''''''''''
Due to shortcomings in the internal implementation of ``device_add``, QEMU
incorrectly accepts certain invalid arguments: Any object or list arguments are
silently ignored. Other argument types are not checked, but an implicit
conversion happens, so that e.g. string values can be assigned to integer
device properties or vice versa.
This is a bug in QEMU that will be fixed in the future so that previously
accepted incorrect commands will return an error. Users should make sure that
all arguments passed to ``device_add`` are consistent with the documented
property types.
Host Architectures
------------------

9
docs/about/removed-features.rst
View file

@ -722,6 +722,15 @@ Use ``multifd-channels`` instead.
Use ``multifd-compression`` instead.
Incorrectly typed ``device_add`` arguments (since 9.2)
''''''''''''''''''''''''''''''''''''''''''''''''''''''
Due to shortcomings in the internal implementation of ``device_add``,
QEMU used to incorrectly accept certain invalid arguments. Any object
or list arguments were silently ignored. Other argument types were not
checked, but an implicit conversion happened, so that e.g. string
values could be assigned to integer device properties or vice versa.
QEMU Machine Protocol (QMP) events
----------------------------------