Commit bbf4f423 authored by Tim Chen's avatar Tim Chen Committed by Greg Kroah-Hartman

Documentation: Add section about CPU vulnerabilities for Spectre

commit 6e885594 upstream.

Add documentation for Spectre vulnerability and the mitigation mechanisms:

- Explain the problem and risks
- Document the mitigation mechanisms
- Document the command line controls
- Document the sysfs files
Co-developed-by: default avatarAndi Kleen <ak@linux.intel.com>
Signed-off-by: default avatarAndi Kleen <ak@linux.intel.com>
Co-developed-by: default avatarTim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: default avatarTim Chen <tim.c.chen@linux.intel.com>
Reviewed-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarJonathan Corbet <corbet@lwn.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent f26cffdb
...@@ -9,5 +9,6 @@ are configurable at compile, boot or run time. ...@@ -9,5 +9,6 @@ are configurable at compile, boot or run time.
.. toctree:: .. toctree::
:maxdepth: 1 :maxdepth: 1
spectre
l1tf l1tf
mds mds
This diff is collapsed.
...@@ -49,6 +49,8 @@ If PR_SPEC_PRCTL is set, then the per-task control of the mitigation is ...@@ -49,6 +49,8 @@ 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 available. If not set, prctl(PR_SET_SPECULATION_CTRL) for the speculation
misfeature will fail. misfeature will fail.
.. _set_spec_ctrl:
PR_SET_SPECULATION_CTRL PR_SET_SPECULATION_CTRL
----------------------- -----------------------
......
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