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| author |   Chang S. Bae <chang.seok.bae@intel.com> | 2019-05-08 03:02:28 -0700 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@linutronix.de> | 2019-06-22 11:38:55 +0200 |
| commit | 5bf0cab60ee2c730ec91ae0aabc3146bcfed138b (patch) | |
| tree | e3eba1af6c79aa6ce8e25fa0d921c3a7a76f3a09 /tools/testing/selftests | |
| parent | x86/entry/64: Handle FSGSBASE enabled paranoid entry/exit (diff) | |
| download | wireguard-linux-5bf0cab60ee2c730ec91ae0aabc3146bcfed138b.tar.xz wireguard-linux-5bf0cab60ee2c730ec91ae0aabc3146bcfed138b.zip | |
x86/entry/64: Document GSBASE handling in the paranoid path
On a FSGSBASE system, the way to handle GSBASE in the paranoid path is
different from the existing SWAPGS-based entry/exit path handling. Document
the reason and what has to be done for FSGSBASE enabled systems.
[ tglx: Massaged doc and changelog ]
Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ravi Shankar <ravi.v.shankar@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Link: https://lkml.kernel.org/r/1557309753-24073-14-git-send-email-chang.seok.bae@intel.com
Diffstat (limited to 'tools/testing/selftests')
0 files changed, 0 insertions, 0 deletions