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Re: [PATCH V5 2/6] libxl: Add support for Virtio GPIO device
- To: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
- From: Anthony PERARD <anthony.perard@xxxxxxxxxx>
- Date: Tue, 6 Sep 2022 17:16:49 +0100
- Authentication-results: esa6.hc3370-68.iphmx.com; dkim=none (message not signed) header.i=none
- Cc: <xen-devel@xxxxxxxxxxxxx>, Vincent Guittot <vincent.guittot@xxxxxxxxxx>, <stratos-dev@xxxxxxxxxxxxxxxxxxx>, Alex Bennée <alex.bennee@xxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxx>, Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>, Mike Holmes <mike.holmes@xxxxxxxxxx>, Oleksandr Tyshchenko <olekstysh@xxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Juergen Gross <jgross@xxxxxxxx>, Julien Grall <julien@xxxxxxx>
- Delivery-date: Tue, 06 Sep 2022 16:17:20 +0000
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- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On Mon, Aug 22, 2022 at 02:45:14PM +0530, Viresh Kumar wrote:
> This patch adds basic support for configuring and assisting virtio-mmio
> based virtio-gpio backend (emualator) which is intended to run out of
> Qemu and could be run in any domain.
>
> An example of domain configuration for Virtio Gpio:
> gpio = [ "" ]
>
> Please note, this patch is not enough for virtio-gpio to work on Xen
> (Arm), as for every Virtio device we need to allocate Virtio MMIO params
> (IRQ and memory region) and pass them to the backend, also update Guest
> device-tree. A subsequent patch will add these missing bits. For the
> current patch, the default "irq" and "base" are just written to the
> Xenstore.
>
> Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
Most comment on the previous patch would apply to this one as well.
Cheers,
--
Anthony PERARD
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