linux-kernel - Re: [PATCH v2 2/2] drivers: gpio: add virtio-gpio guest driver

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Message-ID: <CAOh2x=kcM351ObubnQSzUa=FVBQUmAUhz4u8ExORUthQQ0WbGQ@mail.gmail.com>
Date:   Mon, 24 May 2021 16:57:03 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     "Enrico Weigelt, metux IT consult" <info@...ux.net>,
        Alex Bennée <alex.bennee@...aro.org>,
        Vincent Guittot <vincent.guittot@...aro.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Jonathan Corbet <corbet@....net>,
        "linus.walleij@...aro.org" <linus.walleij@...aro.org>,
        bgolaszewski@...libre.com, "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        Linux Documentation <linux-doc@...r.kernel.org>,
        linux-gpio@...r.kernel.org,
        virtualization@...ts.linux-foundation.org,
        linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v2 2/2] drivers: gpio: add virtio-gpio guest driver

On Fri, Dec 4, 2020 at 12:51 AM Enrico Weigelt, metux IT consult
<info@...ux.net> wrote:
>
> Introducing new gpio driver for virtual GPIO devices via virtio.
>
> The driver allows routing gpio control into VM guests, eg. brigding
> virtual gpios to specific host gpios, or attaching simulators for
> automatic application testing.
>
> Changes v2:
>     * fixed uapi header license
>     * sorted include's
>     * fixed formatting
>     * fixed unneeded devm allocation - plain kzalloc/kfree is enough
>     * fixed missing devm_kzalloc fail check
>     * use devm_kcalloc() for array allocation
>     * added virtio-gpio protocol specification

Hi Enrico,

We (Linaro's Project Stratos
https://linaro.atlassian.net/wiki/spaces/STR/overview)
 are interested in this stuff. I was trying to look at the last status
of all this. Few
questions for you:

- Was the spec ever posted to virtio-dev list ? I thought that's the
very first step before
we merge the code.

- Any follow up on this patchset ?

Thanks. I will be happy to help otherwise and have cycles to work on
this if you need my help.

--
viresh