linux-kernel - Re: [RFC PATCH] drm/virtio: Export resource handles via DMA-buf API

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Message-ID: <20191016061201.iinqjcw6trx5qztq@sirius.home.kraxel.org>
Date:   Wed, 16 Oct 2019 08:12:01 +0200
From:   Gerd Hoffmann <kraxel@...hat.com>
To:     Tomasz Figa <tfiga@...omium.org>
Cc:     Daniel Vetter <daniel@...ll.ch>, David Airlie <airlied@...ux.ie>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        virtualization@...ts.linux-foundation.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        stevensd@...omium.org,
        Stéphane Marchesin <marcheu@...omium.org>,
        Zach Reizner <zachr@...omium.org>,
        Keiichi Watanabe <keiichiw@...omium.org>,
        Pawel Osciak <posciak@...omium.org>
Subject: Re: [RFC PATCH] drm/virtio: Export resource handles via DMA-buf API

  Hi,

> up later when given a buffer index. But we would still need to make
> the DMA-buf itself importable. For virtio-gpu I guess that would mean
> returning an sg_table backed by the shadow buffer pages.

The virtio-gpu driver in drm-misc-next supports dma-buf exports.

cheers,
  Gerd