[PATCH v4] drm/virtio: Add option to disable KMS support

[Javier Martinez Canillas]

Rob Clark <robdclark at gmail.com> writes:

Hello Rob,

> From: Rob Clark <robdclark at chromium.org>
>
> Add a build option to disable modesetting support.  This is useful in
> cases where the guest only needs to use the GPU in a headless mode, or
> (such as in the CrOS usage) window surfaces are proxied to a host
> compositor.
>
> As the modesetting ioctls are a big surface area for potential security
> bugs to be found (it's happened in the past, we should assume it will
> again in the future), it makes sense to have a build option to disable
> those ioctls in cases where they serve no legitimate purpose.
>
> v2: Use more if (IS_ENABLED(...))
> v3: Also permit the host to advertise no scanouts
> v4: Spiff out commit msg
>
> Signed-off-by: Rob Clark <robdclark at chromium.org>
> Reviewed-by: Dmitry Osipenko <dmitry.osipenko at collabora.com>
> ---

The patch looks good to me.

Reviewed-by: Javier Martinez Canillas <javierm at redhat.com>

-- 
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat