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virtio-gpu: Don't require udmabuf when blobs and virgl are enabled 

The udmabuf usage is mandatory when virgl is disabled and blobs feature
enabled in the Qemu machine configuration. If virgl and blobs are enabled,
then udmabuf requirement is optional. Since udmabuf isn't widely supported
by a popular Linux distros today, let's relax the udmabuf requirement for
blobs=on,virgl=on. Now, a full-featured virtio-gpu acceleration is
available to Qemu users without a need to have udmabuf available in the
system.

Reviewed-by: Antonio Caggiano <antonio.caggiano@collabora.com>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Antonio Caggiano <quic_acaggian@quicinc.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Message-Id: <20241024210311.118220-9-dmitry.osipenko@collabora.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
This commit is contained in:
Dmitry Osipenko 2024-10-25 00:03:06 +03:00 committed by Alex Bennée
parent 2c868c7901
commit 6a3e00d8c9
1 changed files with 1 additions and 0 deletions
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hw/display/virtio-gpu.c
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@ -1455,6 +1455,7 @@ void virtio_gpu_device_realize(DeviceState *qdev, Error **errp)
if (virtio_gpu_blob_enabled(g->parent_obj.conf)) {
if (!virtio_gpu_rutabaga_enabled(g->parent_obj.conf) &&
!virtio_gpu_virgl_enabled(g->parent_obj.conf) &&
!virtio_gpu_have_udmabuf()) {
error_setg(errp, "need rutabaga or udmabuf for blob resources");
return;