linux-kernel - Re: [PATCH v2 03/10] PCI/LUO: Forward prepare()/freeze()/cancel() callbacks to driver

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CALzav=c9wJvN2Hy+XNjZfmKFEPomTyMBVfCXQ4601_CtN7SXfw@mail.gmail.com>
Date: Fri, 3 Oct 2025 09:56:44 -0700
From: David Matlack <dmatlack@...gle.com>
To: Pasha Tatashin <pasha.tatashin@...een.com>
Cc: Jason Gunthorpe <jgg@...pe.ca>, Chris Li <chrisl@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Rafael J. Wysocki" <rafael@...nel.org>, 
	Danilo Krummrich <dakr@...nel.org>, Len Brown <lenb@...nel.org>, linux-kernel@...r.kernel.org, 
	linux-pci@...r.kernel.org, linux-acpi@...r.kernel.org, 
	Pasha Tatashin <tatashin@...gle.com>, Jason Miu <jasonmiu@...gle.com>, 
	Vipin Sharma <vipinsh@...gle.com>, Saeed Mahameed <saeedm@...dia.com>, 
	Adithya Jayachandran <ajayachandra@...dia.com>, Parav Pandit <parav@...dia.com>, William Tu <witu@...dia.com>, 
	Mike Rapoport <rppt@...nel.org>, Leon Romanovsky <leon@...nel.org>, Brian Vazquez <brianvv@...gle.com>
Subject: Re: [PATCH v2 03/10] PCI/LUO: Forward prepare()/freeze()/cancel()
 callbacks to driver

On Fri, Oct 3, 2025 at 9:28 AM Pasha Tatashin <pasha.tatashin@...een.com> wrote:
>
> On Fri, Oct 3, 2025 at 12:16 PM Jason Gunthorpe <jgg@...pe.ca> wrote:
> >
> > On Fri, Oct 03, 2025 at 09:03:36AM -0700, David Matlack wrote:
> > > > Shutting down enough of the PF kernel driver to safely kexec is almost
> > > > the same as unbinding it completely.
> > >
> > > I think it's totally fair to tell us to replace pci-pf-stub with
> > > vfio-pci. That gets rid of one PF driver.
> > >
> > > idpf cannot be easily replaced with vfio-pci, since the PF is also
> > > used for host networking.
> >
> > Run host networking on a VF instead?
>
> There is a plan for this, but not immediately. In upstream, I suspect
> vfio-pci is all we need, and other drivers can be added when it really
> necessary.

Sounds good to me.