Re: [PATCH v10 00/13] PCI: liveupdate: PCI core support for Live Update

[Pasha Tatashin]

On Tue, 13 Oct 2026 16:25:16 +0000, David Matlack wrote:
> This series can be found on GitHub:
> 
>   https://github.com/dmatlack/linux/tree/liveupdate/pci/base/v10
> 
> This series introduces support in the PCI core for Live Update, enabling
> drivers to preserve PCI devices across a kexec-based kernel update
> without interrupting the device. This functionality is critical for
> minimizing downtime in environments where PCI devices (e.g., those
> assigned to VMs via VFIO) must continue operating or maintain state
> across a host kernel upgrade.
> 
> [...]

Applied, thanks!

https://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux.git/log/?h=lu-pci-preservation

[01/13] PCI: liveupdate: Set up FLB handler for the PCI core
        commit: f874391deedec9be601bc044f2aed52a267a3671
[02/13] PCI: liveupdate: Track outgoing preserved PCI devices
        commit: e207461556c0d3a42fd59dc548e9e8f599aae298
[03/13] PCI: liveupdate: Track incoming preserved PCI devices
        commit: 42907d099a3c37f5a089d92465b3a61de9c7cbea
[04/13] PCI: liveupdate: Document driver binding responsibilities
        commit: 78d4d22c0d4e0830a5db9b903f1325b7fbe0eb17
[05/13] PCI: liveupdate: Auto-preserve upstream bridges across Live Update
        commit: 8178f14641e2d7acf648acc33a0cc070763250af
[06/13] PCI: liveupdate: Preserve bus numbers during Live Update
        commit: 3f832a32a1801a9e7b1dc4e88a3e1744a316b538
[07/13] PCI: Refactor matching logic for pci_dev_acs_ops
        commit: 966230f2ebac2013f60ba6376a6ca726f6427ecd
[08/13] PCI: Save and restore the ACS Control register and Egress Control Vector
        commit: 88016172c5585b1dd0d777ec529fcac577e4e94f
[09/13] PCI: liveupdate: Adopt ACS controls in incoming preserved devices
        commit: 1fabde9a0e4964ac43e8ef3f0c9619d8ed80cc23
[10/13] PCI: liveupdate: Adopt ARI Forwarding Enable on preserved bridges
        commit: 5506c59d1b844edad5cf2a704f8b87b353b3a2bc
[11/13] PCI: liveupdate: Freeze preservation status during shutdown
        commit: dbe2c3dfd43f9aa094b59669b81aa92b8685d23f
[12/13] PCI: liveupdate: Do not disable bus mastering on preserved devices during kexec
        commit: 534abf9f0870b457e1e6f4ef8267b0471e9d2c2c
[13/13] Documentation: PCI: Add documentation for Live Update
        commit: 5d995129832f72dc7a3870eabb216d487a145cf3

Best regards,
-- 
Pasha