Re: [RFC PATCH 05/21] vfio/pci: Register VFIO live update file handler to Live Update Orchestrator

[David Matlack]

On Fri, Oct 17, 2025 at 5:07 PM Vipin Sharma <vipi...@google.com> wrote:
> +static const struct liveupdate_file_ops vfio_pci_luo_fops = {
> +       .retrieve = vfio_pci_liveupdate_retrieve,
> +       .can_preserve = vfio_pci_liveupdate_can_preserve,
> +       .owner = THIS_MODULE,
> +};
> +
> +static struct liveupdate_file_handler vfio_pci_luo_handler = {
> +       .ops = &vfio_pci_luo_fops,
> +       .compatible = "vfio-v1",
> +};
> +
> +void __init vfio_pci_liveupdate_init(void)
> +{
> +       int err = liveupdate_register_file_handler(&vfio_pci_luo_handler);
> +
> +       if (err)
> +               pr_err("VFIO PCI liveupdate file handler register failed, 
> error %d.\n", err);
> +}

Alex and Jason, should this go in the top-level VFIO directory? And
then have all the preservation logic go through vfio_device_ops? That
would make Live Update support for VFIO cdev files extensible to other
drivers in the future.