From e9a54265f533f4df957ee9ced3304df8c3ef2bea Mon Sep 17 00:00:00 2001 From: Thomas Huth Date: Wed, 27 Sep 2023 15:30:19 +0200 Subject: hw/rdma: Deprecate the pvrdma device and the rdma subsystem MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This subsystem is said to be in a bad shape (see e.g. [1], [2] and [3]), and nobody seems to feel responsible to pick up patches for this and send them via a pull request. For example there is a patch for a CVE-worthy bug posted more than half a year ago [4] which has never been merged. Thus let's mark it as deprecated and finally remove it unless somebody steps up and improves the code quality and adds proper regression tests. [1] https://lore.kernel.org/qemu-devel/20230918144206.560120-1-armbru@redhat.com/ [2] https://lore.kernel.org/qemu-devel/ZQnojJOqoFu73995@redhat.com/ [3] https://lore.kernel.org/qemu-devel/1054981c-e8ae-c676-3b04-eeb030e11f65@tls.msk.ru/ [4] https://lore.kernel.org/qemu-devel/20230301142926.18686-1-yuval.shaia.ml@gmail.com/ Message-ID: <20230927133019.228495-1-thuth@redhat.com> Acked-by: Juan Quintela Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Thomas Huth --- docs/about/deprecated.rst | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'docs/about/deprecated.rst') diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst index 8b136320e2..ffd0a8c896 100644 --- a/docs/about/deprecated.rst +++ b/docs/about/deprecated.rst @@ -327,6 +327,14 @@ QEMU's ``vhost`` feature, which would eliminate the high latency costs under which the 9p ``proxy`` backend currently suffers. However as of to date nobody has indicated plans for such kind of reimplementation unfortunately. +``-device pvrdma`` and the rdma subsystem (since 8.2) +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +The pvrdma device and the whole rdma subsystem are in a bad shape and +without active maintenance. The QEMU project intends to remove this +device and subsystem from the code base in a future release without +replacement unless somebody steps up and improves the situation. + Block device options '''''''''''''''''''' -- cgit v1.2.3