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Date: Mon, 27 Apr 2026 16:05:29 -0500
From: Bjorn Helgaas <helgaas@kernel.org>
To: David Matlack <dmatlack@google.com>
Cc: iommu@lists.linux.dev, kexec@lists.infradead.org,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
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	Adithya Jayachandran <ajayachandra@nvidia.com>,
	Alexander Graf <graf@amazon.com>,
	Alex Williamson <alex@shazbot.org>,
	Bjorn Helgaas <bhelgaas@google.com>, Chris Li <chrisl@kernel.org>,
	David Rientjes <rientjes@google.com>,
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	Pranjal Shrivastava <praan@google.com>,
	Pratyush Yadav <pratyush@kernel.org>,
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	Saeed Mahameed <saeedm@nvidia.com>,
	Samiullah Khawaja <skhawaja@google.com>,
	Shuah Khan <skhan@linuxfoundation.org>,
	Will Deacon <will@kernel.org>, William Tu <witu@nvidia.com>,
	Yi Liu <yi.l.liu@intel.com>
Subject: Re: [PATCH v4 01/11] PCI: liveupdate: Set up FLB handler for the PCI
 core
Message-ID: <20260427210529.GA186381@bhelgaas>
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In-Reply-To: <20260423212316.3431746-2-dmatlack@google.com>

On Thu, Apr 23, 2026 at 09:23:05PM +0000, David Matlack wrote:
> Set up a File-Lifecycle-Bound (FLB) handler for the PCI core to enable
> it to participate in the preservation of PCI devices across Live Update.
> Essentially, this commit enables the PCI core to allocate a struct
> (struct pci_ser) and preserve it across a Live Update whenever at least
> one device is preserved.
> 
> Preserving PCI devices across Live Update is built on top of the Live
> Update Orchestrator's (LUO) support for file preservation. Drivers are
> expected to expose a file to userspace to represent a single PCI device
> and support preservation of that file. This is itended primarily to
> support preservation of PCI devices bound to VFIO drivers.

s/itended/intended/

> +++ b/MAINTAINERS
> @@ -20555,6 +20555,18 @@ L:	linux-pci@vger.kernel.org
>  S:	Supported
>  F:	Documentation/PCI/pci-error-recovery.rst
>  
> +PCI LIVE UPDATE
> +M:	Bjorn Helgaas <bhelgaas@google.com>

I don't think I want to be the primary contact here.  I'll see patches
regardless since they're on linux-pci.

> +M:	David Matlack <dmatlack@google.com>
> +L:	linux-pci@vger.kernel.org
> +S:	Supported
> +Q:	https://patchwork.kernel.org/project/linux-pci/list/
> +B:	https://bugzilla.kernel.org
> +C:	irc://irc.oftc.net/linux-pci
> +T:	git git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git
> +F:	drivers/pci/liveupdate.c
> +F:	include/linux/kho/abi/pci.h