Linux Virtualization - Sep 2018 - [virtio-dev] [PATCH 2/2] drm/virtio: add iommu support.

Hi,
> void virtio_gpu_cmd_transfer_to_host_2d(struct virtio_gpu_device *vgdev,
>                                         uint32_t resource_id, uint64_t
offset,
> ...
>      struct virtio_gpu_fbdev *vgfbdev = vgdev->vgfbdev;
>      struct virtio_gpu_framebuffer *fb = &vgfbdev->vgfb;
>      struct virtio_gpu_object *obj =
gem_to_virtio_gpu_obj(fb->base.obj[0]);
Ah, right.  Should have noticed this on review.  You sync the fbcon
framebuffer unconfitionally ...
> Is there better way to get to the virtio_gpu_object created in the
> virtio_gpu_mode_dumb_create() path from virtio_gpu_device or somehow from
drm_file
> via gem_handle down at the layer of virtio_gpu_cmd_transfer_to_host()?
Just pass it down, the call sites all know it (see patch just sent).

cheers,
  Gerd