Re: [RFC PATCH 00/16] x86/split_lock: Enable #AC exception for split locked accesses

[Peter Zijlstra]

On Thu, Jun 21, 2018 at 03:00:03PM -0700, Fenghua Yu wrote:
> And perf cannot count split lock events in firmware. In real time, even
> split lock in firmware (reboot, run time services, etc) may not be tolerant
> and need to be detected and prevented.

And yet you want to allow firmware to use them by excluding it in these
here patches. Make up your mind.