tree afde68bdab41ba6a2a4e11e286989b2bd468036d
parent 868c250bb4639531ff33b2d879fbef39c1d9ed39
author Chang S. Bae <chang.seok.bae@intel.com> 1635239517 -0700
committer Borislav Petkov <bp@suse.de> 1635425698 +0200

Documentation/x86: Add documentation for using dynamic XSTATE features

Explain how dynamic XSTATE features can be enabled via the
architecture-specific prctl() along with dynamic sigframe size and
first use trap handling.

Fix:

Documentation/x86/xstate.rst:15: WARNING: Title underline too short.

as reported by Stephen Rothwell <sfr@canb.auug.org.au>

Originally-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20211026091157.16711-1-chang.seok.bae@intel.com