Re: [PATCH v6 00/27] VFIO PCI Live Update (noiommu mode)

[David Matlack]

On Mon Nov 2, 2026 at 3:36 PM UTC, Vipin Sharma wrote:

> David Matlack (4):
>   vfio: Enforce preserved devices are retrieved via
>     LIVEUPDATE_SESSION_RETRIEVE_FD
>   docs: liveupdate: Add documentation for VFIO PCI
>   vfio: selftests: Add vfio_pci_liveupdate_uapi_test
>   vfio: selftests: Add Makefile support for TEST_GEN_PROGS_EXTENDED
>
> Vipin Sharma (23):
>   vfio/pci: Factor out the reset logic in VFIO PCI device close path
>   vfio: Export various helpers from VFIO
>   liveupdate: Export symbols needed by modules
>   vfio/pci: Register a file handler with Live Update Orchestrator
>   PCI: liveupdate: Add helpers to preserve struct pci_saved_state
>   vfio: Add helpers to identify device files that can be preserved
>   vfio/pci: Preserve vfio-pci device files across Live Update
>   vfio: Introduce vfio_find_device() helper
>   vfio: Refactor vfio_device_fops_cdev_open()
>   vfio: Add API to open cdev device for Live Update restore
>   vfio/pci: Retrieve preserved device files after Live Update
>   vfio/pci: Protect incoming preserved devices until they finish Live
>     Update
>   vfio/pci: Take over preserved devices without resetting them
>   vfio: selftests: Build liveupdate library in VFIO selftests
>   vfio: selftests: Initialize vfio_pci_device using a VFIO cdev FD
>   vfio: selftests: Add iommufd noiommu mode
>   vfio: selftests: Add helpers to map DMA memory at IOVA == PA in
>     noiommu mode
>   vfio: selftests: Add helpers for Live Update DMA memory and sysfs
>     state
>   vfio: selftests: Add an attach() driver op
>   vfio: selftests: Test preserving noiommu devices in
>     vfio_pci_liveupdate_uapi_test
>   vfio: selftests: Add vfio_pci_liveupdate_kexec_test
>   vfio: selftests: Verify that opening VFIO device fails during Live
>     Update
>   vfio: selftests: Add continuous DMA to vfio_pci_liveupdate_kexec_test

This series is getting quite long. I would consider splitting out the
selftests into its own series and we can iterate on each separately.