From: Jason Gunthorpe <jgg@ziepe.ca>
To: Chris Li <chrisl@kernel.org>
Cc: David Matlack <dmatlack@google.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Danilo Krummrich <dakr@kernel.org>, Len Brown <lenb@kernel.org>,
Pasha Tatashin <pasha.tatashin@soleen.com>,
linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
linux-acpi@vger.kernel.org, Pasha Tatashin <tatashin@google.com>,
Jason Miu <jasonmiu@google.com>,
Vipin Sharma <vipinsh@google.com>,
Saeed Mahameed <saeedm@nvidia.com>,
Adithya Jayachandran <ajayachandra@nvidia.com>,
Parav Pandit <parav@nvidia.com>, William Tu <witu@nvidia.com>,
Mike Rapoport <rppt@kernel.org>,
Leon Romanovsky <leon@kernel.org>
Subject: Re: [PATCH v2 03/10] PCI/LUO: Forward prepare()/freeze()/cancel() callbacks to driver
Date: Fri, 3 Oct 2025 09:06:38 -0300 [thread overview]
Message-ID: <20251003120638.GM3195829@ziepe.ca> (raw)
In-Reply-To: <CACePvbXdzx5rfS1qKkFYtL-yizQiht_evge-jWo0F2ruobgkZA@mail.gmail.com>
On Thu, Oct 02, 2025 at 10:24:59PM -0700, Chris Li wrote:
> As David pointed out in the other email, the PCI also supports other
> non vfio PCI devices which do not have the FD and FD related sessions.
> That is the original intent for the LUO PCI subsystem.
This doesn't make sense. We don't know how to solve this problem yet,
but I'm pretty confident we will need to inject a FD and session into
these drivers too.
> away once we have the vfio-pci as the real user. Actually getting the
> pci-pf-stub driver working would be a smaller and reasonable step to
> justify the PF support in LUO PCI.
In this contex pci-pf-stub is useless, just use vfio-pci as the SRIOV
stub. I wouldn't invest in it. Especially since it creates more
complexity because we don't have an obvious way to get the session FD.
Jason
next prev parent reply other threads:[~2025-10-03 12:06 UTC|newest]
Thread overview: 84+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-16 7:45 [PATCH v2 00/10] LUO: PCI subsystem (phase I) Chris Li
2025-09-16 7:45 ` [PATCH v2 01/10] PCI/LUO: Register with Liveupdate Orchestrator Chris Li
2025-09-30 15:15 ` Greg Kroah-Hartman
2025-09-30 23:41 ` Chris Li
2025-09-30 15:17 ` Greg Kroah-Hartman
2025-09-30 23:38 ` Chris Li
2025-09-16 7:45 ` [PATCH v2 02/10] PCI/LUO: Create requested liveupdate device list Chris Li
2025-09-29 17:46 ` Jason Gunthorpe
2025-09-30 2:13 ` Chris Li
2025-09-30 16:47 ` Jason Gunthorpe
2025-10-03 7:09 ` Chris Li
2025-10-03 5:33 ` Chris Li
2025-10-03 14:04 ` Jason Gunthorpe
2025-10-03 21:06 ` Chris Li
2025-09-30 15:26 ` Greg Kroah-Hartman
2025-10-03 6:57 ` Chris Li
2025-09-16 7:45 ` [PATCH v2 03/10] PCI/LUO: Forward prepare()/freeze()/cancel() callbacks to driver Chris Li
2025-09-29 17:48 ` Jason Gunthorpe
2025-09-30 2:11 ` Chris Li
2025-09-30 16:38 ` Jason Gunthorpe
2025-10-02 18:54 ` David Matlack
2025-10-02 20:57 ` Chris Li
2025-10-02 21:31 ` David Matlack
2025-10-02 23:21 ` Jason Gunthorpe
2025-10-02 23:42 ` David Matlack
2025-10-03 12:03 ` Jason Gunthorpe
2025-10-03 16:03 ` David Matlack
2025-10-03 16:16 ` Jason Gunthorpe
2025-10-03 16:28 ` Pasha Tatashin
2025-10-03 16:56 ` David Matlack
2025-10-03 5:24 ` Chris Li
2025-10-03 12:06 ` Jason Gunthorpe [this message]
2025-10-03 16:27 ` David Matlack
2025-10-03 16:41 ` Vipin Sharma
2025-10-03 17:44 ` Chris Li
2025-10-03 5:17 ` Chris Li
2025-10-02 20:44 ` Chris Li
2025-09-30 15:27 ` Greg Kroah-Hartman
2025-10-02 20:38 ` Chris Li
2025-10-03 6:18 ` Greg Kroah-Hartman
2025-10-03 7:26 ` Chris Li
2025-10-03 12:26 ` Greg Kroah-Hartman
2025-10-03 17:49 ` Chris Li
2025-10-03 18:27 ` David Matlack
2025-10-03 21:10 ` Chris Li
2025-09-16 7:45 ` [PATCH v2 04/10] PCI/LUO: Restore state at PCI enumeration Chris Li
2025-09-16 7:45 ` [PATCH v2 05/10] PCI/LUO: Forward finish callbacks to drivers Chris Li
2025-09-16 7:45 ` [PATCH v2 06/10] PCI/LUO: Save and restore driver name Chris Li
2025-09-29 17:57 ` Jason Gunthorpe
2025-09-30 2:10 ` Chris Li
2025-09-30 13:02 ` Pasha Tatashin
2025-09-30 13:41 ` Greg Kroah-Hartman
2025-09-30 14:53 ` Pasha Tatashin
2025-09-30 15:08 ` Greg Kroah-Hartman
2025-09-30 15:56 ` Pasha Tatashin
2025-10-01 5:06 ` Greg Kroah-Hartman
2025-10-01 21:03 ` Pasha Tatashin
2025-10-02 6:09 ` Greg Kroah-Hartman
2025-10-02 13:23 ` Jason Gunthorpe
2025-10-02 22:30 ` Chris Li
2025-09-30 15:41 ` Chris Li
2025-10-01 5:13 ` Greg Kroah-Hartman
2025-10-02 22:05 ` Chris Li
2025-09-30 16:37 ` Jason Gunthorpe
2025-10-02 21:39 ` Chris Li
2025-10-03 14:28 ` Jason Gunthorpe
2025-09-16 7:45 ` [PATCH v2 07/10] PCI/LUO: Add liveupdate to pcieport driver Chris Li
2025-09-16 7:45 ` [PATCH v2 08/10] PCI/LUO: Add pci_liveupdate_get_driver_data() Chris Li
2025-09-16 7:45 ` [PATCH v2 09/10] PCI/LUO: Avoid write to bus master at boot Chris Li
2025-09-29 17:14 ` Bjorn Helgaas
2025-09-16 7:45 ` [PATCH v2 10/10] PCI: pci-lu-stub: Add a stub driver for Live Update testing Chris Li
2025-09-27 17:13 ` [PATCH v2 00/10] LUO: PCI subsystem (phase I) Bjorn Helgaas
2025-09-27 18:05 ` Pasha Tatashin
2025-09-29 15:04 ` Bjorn Helgaas
2025-09-29 18:13 ` Chris Li
2025-10-07 23:32 ` Chris Li
2025-10-08 23:00 ` David Matlack
2025-10-09 17:12 ` Chris Li
2025-10-09 23:21 ` Pratyush Yadav
2025-10-10 4:19 ` Chris Li
2025-10-10 23:49 ` Jason Miu
2025-10-13 13:58 ` Pratyush Yadav
2025-10-14 16:11 ` Pratyush Yadav
2025-10-14 20:44 ` Chris Li
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20251003120638.GM3195829@ziepe.ca \
--to=jgg@ziepe.ca \
--cc=ajayachandra@nvidia.com \
--cc=bhelgaas@google.com \
--cc=chrisl@kernel.org \
--cc=dakr@kernel.org \
--cc=dmatlack@google.com \
--cc=gregkh@linuxfoundation.org \
--cc=jasonmiu@google.com \
--cc=lenb@kernel.org \
--cc=leon@kernel.org \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=parav@nvidia.com \
--cc=pasha.tatashin@soleen.com \
--cc=rafael@kernel.org \
--cc=rppt@kernel.org \
--cc=saeedm@nvidia.com \
--cc=tatashin@google.com \
--cc=vipinsh@google.com \
--cc=witu@nvidia.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox