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Date:   Wed, 6 Jul 2022 09:13:01 +0200
From:   Gerd Hoffmann <kraxel@redhat.com>
To:     Dmitry Osipenko <dmitry.osipenko@collabora.com>
Cc:     kernel@collabora.com, David Airlie <airlied@linux.ie>,
        Thomas =?utf-8?Q?Hellstr=C3=B6m?= <thomas_os@shipmail.org>,
        Emil Velikov <emil.l.velikov@gmail.com>,
        linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
        Gurchetan Singh <gurchetansingh@chromium.org>,
        Thomas Zimmermann <tzimmermann@suse.de>,
        Dmitry Osipenko <digetx@gmail.com>,
        virtualization@lists.linux-foundation.org,
        Robin Murphy <robin.murphy@arm.com>
Subject: Re: [PATCH v7 7/9] drm/virtio: Improve DMA API usage for shmem BOs
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  Hi,

> Gerd, thank you very much! It's was indeed unclear to me how to test the
> MMIO GPU, but yours variant with microvm works! I was looking for trying
> aarch64 in the past, but it also was unclear how to do it since there is
> no DT support for the VirtIO-GPU, AFAICS.

aarch64 uses acpi by default (can be disabled via 'qemu -no-acpi').
Not fully sure about arm(v7).

Even with DT it should work because DT only describes the virtio-mmio
'slots', not the actual virtio devices.

> There is no virgl support because it's a virtio-gpu-device and not
> virtio-gpu-device-gl that is PCI-only in Qemu. Hence everything seems good.

It's named 'virtio-gpu-gl-device'

take care,
  Gerd