Re: [PATCH 07/19] x86, mpx: boot-time disable

Thomas Gleixner
2015-05-18T20:45:48Z

On Fri, 8 May 2015, Dave Hansen wrote:
> MPX has the _potential_ to cause some issues. Say part of your init
> system tried to protect one of its components from buffer overflows
> with MPX. If there were a false positive, it's possible that MPX
> could keep a system from booting.
>
> MPX could also potentially cause performance issues since it is
> present in hot paths like the unmap path.
>
> Allow it to be disabled at boot time.
>
> Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>