Add documentation for preserving VFIO device files across a Live Update,
generated from the kernel-doc comments in the code.

Signed-off-by: David Matlack <[email protected]>
---
 Documentation/core-api/liveupdate.rst         |  1 +
 .../driver-api/vfio_pci_liveupdate.rst        | 23 +++++++++++++++++++
 MAINTAINERS                                   |  1 +
 3 files changed, 25 insertions(+)
 create mode 100644 Documentation/driver-api/vfio_pci_liveupdate.rst

diff --git a/Documentation/core-api/liveupdate.rst 
b/Documentation/core-api/liveupdate.rst
index d56a7760978a..c55d0d9d1d3b 100644
--- a/Documentation/core-api/liveupdate.rst
+++ b/Documentation/core-api/liveupdate.rst
@@ -34,6 +34,7 @@ The following types of file descriptors can be preserved
    :maxdepth: 1
 
    ../mm/memfd_preservation
+   ../driver-api/vfio_pci_liveupdate
 
 Public API
 ==========
diff --git a/Documentation/driver-api/vfio_pci_liveupdate.rst 
b/Documentation/driver-api/vfio_pci_liveupdate.rst
new file mode 100644
index 000000000000..1098b84e5ecd
--- /dev/null
+++ b/Documentation/driver-api/vfio_pci_liveupdate.rst
@@ -0,0 +1,23 @@
+.. SPDX-License-Identifier: GPL-2.0-or-later
+
+====================================
+VFIO PCI Device Preservation via LUO
+====================================
+
+.. kernel-doc:: drivers/vfio/pci/vfio_pci_liveupdate.c
+   :doc: VFIO PCI Preservation via LUO
+
+VFIO PCI Preservation ABI
+=========================
+
+.. kernel-doc:: include/linux/kho/abi/vfio_pci.h
+   :doc: VFIO PCI Live Update ABI
+
+.. kernel-doc:: include/linux/kho/abi/vfio_pci.h
+   :internal:
+
+See Also
+========
+
+- :doc:`/core-api/liveupdate`
+- :doc:`/core-api/kho/index`
diff --git a/MAINTAINERS b/MAINTAINERS
index a16a7ecc67a4..a6a31b94a4e8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -27684,6 +27684,7 @@ T:      git https://github.com/awilliam/linux-vfio.git
 F:     Documentation/ABI/testing/debugfs-vfio
 F:     Documentation/ABI/testing/sysfs-devices-vfio-dev
 F:     Documentation/driver-api/vfio.rst
+F:     Documentation/driver-api/vfio_pci_liveupdate.rst
 F:     drivers/vfio/
 F:     include/linux/kho/abi/vfio_pci.h
 F:     include/linux/vfio.h
-- 
2.53.0.983.g0bb29b3bc5-goog


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