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WSL2-Linux-Kernel/Documentation/userspace-api/index.rst

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docs: Create a user-space API guide This is meant to be the place for documentation relevant to application developers. It's empty for the moment, but at least we have a place now! Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-02 23:58:01 +03:00
=====================================
The Linux kernel user-space API guide
=====================================
.. _man-pages: https://www.kernel.org/doc/man-pages/
While much of the kernel's user-space API is documented elsewhere
(particularly in the man-pages_ project), some user-space information can
also be found in the kernel tree itself. This manual is intended to be the
place where this information is gathered.
.. class:: toc-title
Table of contents
.. toctree::
:maxdepth: 2
doc: ReSTify no_new_privs.txt This updates no_new_privs documentation to ReST markup and adds it to the user-space API documentation. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-05-13 14:51:38 +03:00
no_new_privs
doc: ReSTify seccomp_filter.txt This updates seccomp_filter.txt for ReST markup, and moves it under the user-space API index, since it describes how application author can use seccomp. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-05-13 14:51:37 +03:00
seccomp_filter
landlock: Add user and kernel documentation Add a first document describing userspace API: how to define and enforce a Landlock security policy. This is explained with a simple example. The Landlock system calls are described with their expected behavior and current limitations. Another document is dedicated to kernel developers, describing guiding principles and some important kernel structures. This documentation can be built with the Sphinx framework. Cc: James Morris <jmorris@namei.org> Cc: Jann Horn <jannh@google.com> Cc: Serge E. Hallyn <serge@hallyn.com> Signed-off-by: Mickaël Salaün <mic@linux.microsoft.com> Reviewed-by: Vincent Dagonneau <vincent.dagonneau@ssi.gouv.fr> Reviewed-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20210422154123.13086-13-mic@digikod.net Signed-off-by: James Morris <jamorris@linux.microsoft.com>
2021-04-22 18:41:22 +03:00
landlock
docs: Convert unshare.txt to RST and add to the user-space API manual This is a straightforward conversion, without any real textual changes. Since this document has seen no substantive changes since its addition in 2006, some such changes are probably warranted. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-03 00:18:32 +03:00
unshare
prctl: Add speculation control prctls Add two new prctls to control aspects of speculation related vulnerabilites and their mitigations to provide finer grained control over performance impacting mitigations. PR_GET_SPECULATION_CTRL returns the state of the speculation misfeature which is selected with arg2 of prctl(2). The return value uses bit 0-2 with the following meaning: Bit Define Description 0 PR_SPEC_PRCTL Mitigation can be controlled per task by PR_SET_SPECULATION_CTRL 1 PR_SPEC_ENABLE The speculation feature is enabled, mitigation is disabled 2 PR_SPEC_DISABLE The speculation feature is disabled, mitigation is enabled If all bits are 0 the CPU is not affected by the speculation misfeature. If PR_SPEC_PRCTL is set, then the per task control of the mitigation is available. If not set, prctl(PR_SET_SPECULATION_CTRL) for the speculation misfeature will fail. PR_SET_SPECULATION_CTRL allows to control the speculation misfeature, which is selected by arg2 of prctl(2) per task. arg3 is used to hand in the control value, i.e. either PR_SPEC_ENABLE or PR_SPEC_DISABLE. The common return values are: EINVAL prctl is not implemented by the architecture or the unused prctl() arguments are not 0 ENODEV arg2 is selecting a not supported speculation misfeature PR_SET_SPECULATION_CTRL has these additional return values: ERANGE arg3 is incorrect, i.e. it's not either PR_SPEC_ENABLE or PR_SPEC_DISABLE ENXIO prctl control of the selected speculation misfeature is disabled The first supported controlable speculation misfeature is PR_SPEC_STORE_BYPASS. Add the define so this can be shared between architectures. Based on an initial patch from Tim Chen and mostly rewritten. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2018-04-29 16:20:11 +03:00
spec_ctrl
docs: ocxl.rst: add it to the uAPI book The content of this file is user-faced. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Andrew Donnellan <ajd@linux.ibm.com>
2019-06-18 17:39:21 +03:00
accelerators/ocxl
docs/bpf: Add bpf() syscall command reference Generate the syscall command reference from the UAPI header file and include it in the main bpf docs page. Signed-off-by: Joe Stringer <joe@cilium.io> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Quentin Monnet <quentin@isovalent.com> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com> Link: https://lore.kernel.org/bpf/20210302171947.2268128-15-joe@cilium.io
2021-03-02 20:19:46 +03:00
ebpf/index
docs: Move the user-space ioctl() docs to userspace-api This is strictly user-space material at this point, so put it with the other user-space API documentation. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2019-10-03 22:02:19 +03:00
ioctl/index
docs: userspace-api: add iommu.rst to the index file There's a new uAPI doc for IOMMU. Add it to the index file. Should address this warning: .../Documentation/userspace-api/iommu.rst: WARNING: document isn't included in any toctree Fixes: d0023e3ee28d ("docs: IOMMU user API") Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/cc55219a551e29848e2282cd8939a4115067234c.1603791716.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-10-27 12:51:12 +03:00
iommu
media: docs: get rid of Documentation/media/ Now that everything got moved, we can get rid of the old media directory. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-03-10 15:57:48 +03:00
media/index
Documentation: Add documentation for new platform_profile sysfs attribute On modern systems the platform performance, temperature, fan and other hardware related characteristics are often dynamically configurable. The profile is often automatically adjusted to the load by some automatic-mechanism (which may very well live outside the kernel). These auto platform-adjustment mechanisms often can be configured with one of several 'platform-profiles', with either a bias towards low-power consumption or towards performance (and higher power consumption and thermals). Introduce a new platform_profile sysfs API which offers a generic API for selecting the performance-profile of these automatic-mechanisms. Co-developed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Mark Pearson <markpearson@lenovo.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-12-30 03:18:25 +03:00
sysfs-platform_profile
docs: Convert unshare.txt to RST and add to the user-space API manual This is a straightforward conversion, without any real textual changes. Since this document has seen no substantive changes since its addition in 2006, some such changes are probably warranted. Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-03 00:18:32 +03:00
docs: Create a user-space API guide This is meant to be the place for documentation relevant to application developers. It's empty for the moment, but at least we have a place now! Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2017-04-02 23:58:01 +03:00
.. only:: subproject and html
Indices
=======
* :ref:`genindex`