[virtio-dev] [PATCH v2 4/4] drm/virtio: Support virtgpu exported resources

David Stevens stevensd at chromium.org
Tue Mar 3 02:42:22 UTC 2020


> cmd_p->hdr.ctx_id =
>
> Before this completion of this hypercall, this resource can be
> considered context local, while afterward it can be considered
> "exported".

Maybe I'm misunderstanding render contexts, but exporting a resource
doesn't seem related to render contexts. The other resource management
operations (e.g. creation, attaching a backing) don't take render
contexts, and exporting a resource seems like the same sort of
operation. It's not clear to me why exporting a resource would affect
what render contexts a resource has been attached to, nor why the
render contexts a resource has been attached to would affect exporting
the resource. Also, from an implementation perspective, I don't see
any struct virtio_gpu_fpriv to get the ctx_id from.

-David


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