Re: [PATCH v2 02/10] PCI/LUO: Create requested liveupdate device list

Jason Gunthorpe
2025-10-03T14:05:00Z

On Thu, Oct 02, 2025 at 10:33:20PM -0700, Chris Li wrote:
> The consideration is that some non vfio device like IDPF is preserved
> as well. Does the iommufd encapsulate all the PCI device hierarchy? I
> was thinking the PCI layer knows about the PCI device hierarchy,
> therefore using pci_dev->dev.lu.flags to indicate the participation of
> the PCI liveupdate. Not sure how to drive that from iommufd. Can you
> explain a bit more?

I think you need to start from here and explain what is minimally
needed and identify what gets put in the luo session and what has to
be luo global.

Jason