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drm/virtio: Allow importing prime buffers when 3D is enabled

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This functionality was added for using a KMS-only virtgpu with a physical
(or SR-IOV) headless GPU in passthrough, but it should not be restricted
to KMS-only mode. It can be used with cross-domain to pass guest memfds
to the host compositor with zero copies (using udmabuf on both sides).

Drop the check for the absence of virgl_3d to allow for more use cases.

Fixes: ca77f27a26 ("drm/virtio: Import prime buffers from other devices as guest blobs")
Signed-off-by: Val Packett <[email protected]>
Reviewed-by: Dmitry Osipenko <[email protected]>
Signed-off-by: Dmitry Osipenko <[email protected]>
Link: https://patch.msgid.link/[email protected]
This commit is contained in:
Val Packett authored and Dmitry Osipenko committed 2026-02-12 02:30:03 +03:00
1 parent 40c1ccc1a3
commit df4dc947c4
1 file changed
+1 -1
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drivers/gpu/drm/virtio/virtgpu_prime.c
+1 -1
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@@ -312,7 +312,7 @@ struct drm_gem_object *virtgpu_gem_prime_import(struct drm_device *dev,
}
}
if (!vgdev->has_resource_blob || vgdev->has_virgl_3d)
if (!vgdev->has_resource_blob)
return drm_gem_prime_import(dev, buf);
bo = kzalloc(sizeof(*bo), GFP_KERNEL);