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Subject: Re: [PATCH v3 1/2] drm/virtio: Add window server support
To:     Gerd Hoffmann <kraxel@redhat.com>
Cc:     linux-kernel@vger.kernel.org, Zach Reizner <zachr@google.com>,
        kernel@collabora.com, dri-devel@lists.freedesktop.org,
        virtualization@lists.linux-foundation.org,
        "Michael S. Tsirkin" <mst@redhat.com>,
        David Airlie <airlied@linux.ie>,
        Jason Wang <jasowang@redhat.com>,
        Stefan Hajnoczi <stefanha@gmail.com>
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From:   Tomeu Vizoso <tomeu.vizoso@collabora.com>
Message-ID: <eea72b9d-d180-6a57-81ce-4366dc0f2bcc@collabora.com>
Date:   Mon, 12 Feb 2018 15:00:24 +0100
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On 02/12/2018 12:52 PM, Gerd Hoffmann wrote:
>    Hi,
> 
>> can we reach agreement on whether vsock should be involved in this?
> 
> I think the best approach would be to have guest proxy and host proxy
> use vsock for the wayland protocol.  Use a wayland protocol extension to
> reference the buffers in stdvga / ivshmem / virtio-gpu.  Only the two
> proxies need to understand the extension, the client <=> guest proxy and
> host proxy <=> server communication would be standard wayland protocol.

Thanks for the ideas. What I haven't understood yet is how you see the 
actual passing of buffers via vsock. Are you thinking of using ancillary 
data to pass FDs, or something else?

Thanks,

Tomeu