[PATCH v3 2/2] drm/virtio: Implement save and restore for virtio_gpu_objects

[Dmitry Osipenko]

On 7/9/25 18:34, Kim, Dongwon wrote:
> Hi Dmitry,
> 
> I thought about what you are saying - avoiding GPU reset and it would work with normal
> sleep and restore (s3) but the problem I saw was hibernation scenario (s4). In this case, QEMU
> process will be terminated after guest hibernation and this actually destroys all the resources
> anyway. So some sort of recreation seemed to be required from my point of view.

Can we add proper hibernation support/handling to the virtio-gpu driver?
I.e. restoring shmem buffers based on S4 PM_POST_HIBERNATION event and
not resetting GPU on S3. Entering S4 then should be prohibited if 3d
contexts feature enabled.

-- 
Best regards,
Dmitry