[PATCH v2 23/32] docs: add luo documentation

[Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>]

Add the documentation files for the Live Update Orchestrator

Signed-off-by: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
---
 Documentation/admin-guide/index.rst        |  1 +
 Documentation/admin-guide/liveupdate.rst   | 16 +++++++
 Documentation/core-api/index.rst           |  1 +
 Documentation/core-api/liveupdate.rst      | 50 ++++++++++++++++++++++
 Documentation/userspace-api/index.rst      |  1 +
 Documentation/userspace-api/liveupdate.rst | 25 +++++++++++
 6 files changed, 94 insertions(+)
 create mode 100644 Documentation/admin-guide/liveupdate.rst
 create mode 100644 Documentation/core-api/liveupdate.rst
 create mode 100644 Documentation/userspace-api/liveupdate.rst

diff --git a/Documentation/admin-guide/index.rst b/Documentation/admin-guide/index.rst
index 259d79fbeb94..3f59ccf32760 100644
--- a/Documentation/admin-guide/index.rst
+++ b/Documentation/admin-guide/index.rst
@@ -95,6 +95,7 @@ likely to be of interest on almost any system.
    cgroup-v2
    cgroup-v1/index
    cpu-load
+   liveupdate
    mm/index
    module-signing
    namespaces/index
diff --git a/Documentation/admin-guide/liveupdate.rst b/Documentation/admin-guide/liveupdate.rst
new file mode 100644
index 000000000000..ff05cc1dd784
--- /dev/null
+++ b/Documentation/admin-guide/liveupdate.rst
@@ -0,0 +1,16 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+=================
+Live Update sysfs
+=================
+:Author: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
+
+LUO sysfs interface
+===================
+.. kernel-doc:: kernel/liveupdate/luo_sysfs.c
+   :doc: LUO sysfs interface
+
+See Also
+========
+
+- :doc:`Live Update Orchestrator </core-api/liveupdate>`
diff --git a/Documentation/core-api/index.rst b/Documentation/core-api/index.rst
index 7a4ca18ca6e2..a79d806f2c8e 100644
--- a/Documentation/core-api/index.rst
+++ b/Documentation/core-api/index.rst
@@ -136,6 +136,7 @@ Documents that don't fit elsewhere or which have yet to be categorized.
    :maxdepth: 1
 
    librs
+   liveupdate
    netlink
 
 .. only:: subproject and html
diff --git a/Documentation/core-api/liveupdate.rst b/Documentation/core-api/liveupdate.rst
new file mode 100644
index 000000000000..41c4b76cd3ec
--- /dev/null
+++ b/Documentation/core-api/liveupdate.rst
@@ -0,0 +1,50 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+========================
+Live Update Orchestrator
+========================
+:Author: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
+
+.. kernel-doc:: kernel/liveupdate/luo_core.c
+   :doc: Live Update Orchestrator (LUO)
+
+LUO Subsystems Participation
+============================
+.. kernel-doc:: kernel/liveupdate/luo_subsystems.c
+   :doc: LUO Subsystems support
+
+LUO Preserving File Descriptors
+===============================
+.. kernel-doc:: kernel/liveupdate/luo_files.c
+   :doc: LUO file descriptors
+
+Public API
+==========
+.. kernel-doc:: include/linux/liveupdate.h
+
+.. kernel-doc:: kernel/liveupdate/luo_core.c
+   :export:
+
+.. kernel-doc:: kernel/liveupdate/luo_subsystems.c
+   :export:
+
+.. kernel-doc:: kernel/liveupdate/luo_files.c
+   :export:
+
+Internal API
+============
+.. kernel-doc:: kernel/liveupdate/luo_core.c
+   :internal:
+
+.. kernel-doc:: kernel/liveupdate/luo_subsystems.c
+   :internal:
+
+.. kernel-doc:: kernel/liveupdate/luo_files.c
+   :internal:
+
+See Also
+========
+
+- :doc:`Live Update uAPI </userspace-api/liveupdate>`
+- :doc:`Live Update SysFS </admin-guide/liveupdate>`
+- :doc:`/core-api/kho/concepts`
diff --git a/Documentation/userspace-api/index.rst b/Documentation/userspace-api/index.rst
index b8c73be4fb11..ee8326932cb0 100644
--- a/Documentation/userspace-api/index.rst
+++ b/Documentation/userspace-api/index.rst
@@ -62,6 +62,7 @@ Everything else
 
    ELF
    netlink/index
+   liveupdate
    sysfs-platform_profile
    vduse
    futex2
diff --git a/Documentation/userspace-api/liveupdate.rst b/Documentation/userspace-api/liveupdate.rst
new file mode 100644
index 000000000000..70b5017c0e3c
--- /dev/null
+++ b/Documentation/userspace-api/liveupdate.rst
@@ -0,0 +1,25 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+================
+Live Update uAPI
+================
+:Author: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
+
+ioctl interface
+===============
+.. kernel-doc:: kernel/liveupdate/luo_ioctl.c
+   :doc: LUO ioctl Interface
+
+ioctl uAPI
+===========
+.. kernel-doc:: include/uapi/linux/liveupdate.h
+
+LUO selftests ioctl
+===================
+.. kernel-doc:: kernel/liveupdate/luo_selftests.c
+   :doc: LUO Selftests
+
+See Also
+========
+
+- :doc:`Live Update Orchestrator </core-api/liveupdate>`
-- 
2.50.0.727.gbf7dc18ff4-goog