This validates that GS and GSBASE are independently preserved in
ptracer commands.
Suggested-by: NAndy Lutomirski <luto@kernel.org>
Signed-off-by: NChang S. Bae <chang.seok.bae@intel.com>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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/1557309753-24073-16-git-send-email-chang.seok.bae@intel.com