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[35.247.89.60]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2aece7edd14sm155239485ad.50.2026.03.16.14.55.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 16 Mar 2026 14:55:30 -0700 (PDT) Date: Mon, 16 Mar 2026 14:55:26 -0700 From: Vipin Sharma To: David Matlack Cc: Alex Williamson , Adithya Jayachandran , Alexander Graf , Alex Mastro , Alistair Popple , Andrew Morton , Ankit Agrawal , Bjorn Helgaas , Chris Li , David Rientjes , Jacob Pan , Jason Gunthorpe , Jason Gunthorpe , Jonathan Corbet , Josh Hilke , Kevin Tian , kexec@lists.infradead.org, kvm@vger.kernel.org, Leon Romanovsky , Leon Romanovsky , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org, linux-pci@vger.kernel.org, Lukas Wunner , =?utf-8?Q?Micha=C5=82?= Winiarski , Mike Rapoport , Parav Pandit , Pasha Tatashin , Pranjal Shrivastava , Pratyush Yadav , Raghavendra Rao Ananta , Rodrigo Vivi , Saeed Mahameed , Samiullah Khawaja , Shuah Khan , Thomas =?utf-8?Q?Hellstr=C3=B6m?= , Tomita Moeko , Vivek Kasireddy , William Tu , Yi Liu , Zhu Yanjun Subject: Re: [PATCH v2 11/22] docs: liveupdate: Document VFIO device file preservation Message-ID: <20260316215056.GC1846904.vipinsh@google.com> References: <20260129212510.967611-1-dmatlack@google.com> <20260129212510.967611-12-dmatlack@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260129212510.967611-12-dmatlack@google.com> On Thu, Jan 29, 2026 at 09:24:58PM +0000, David Matlack wrote: > Add documentation for preserving VFIO device files across a Live Update, > as well as some generic file preservation documentation. This > documentation will be extended in the future as new types of files are > supported and new dependency/ordering requirements are added. > > Signed-off-by: David Matlack > --- > Documentation/userspace-api/liveupdate.rst | 144 +++++++++++++++++++++ > 1 file changed, 144 insertions(+) > > diff --git a/Documentation/userspace-api/liveupdate.rst b/Documentation/userspace-api/liveupdate.rst > index 41c0473e4f16..dbf1e4aeddd7 100644 > --- a/Documentation/userspace-api/liveupdate.rst > +++ b/Documentation/userspace-api/liveupdate.rst > @@ -14,6 +14,150 @@ ioctl uAPI > =========== > .. kernel-doc:: include/uapi/linux/liveupdate.h > > +File Preservation > +================= Should we use the existing way where documentation is written in code files and referenced here? Maybe luo_file.c for this? > + > +File Retrieval > +============== Same as above. > + > + > +VFIO Character Device (cdev) Files > +================================== > + vfio_pci_liveupdate.c