Re: [RFC PATCH 06/16] x86/split_lock: Save #AC setting for split lock in firmware in boot time and restore the setting in reboot

[Peter Zijlstra]

On Tue, Jun 26, 2018 at 12:02:21PM +0100, Alan Cox wrote:
> > But then how do we deal with SMIs ?
> 
> On a system doing that level of real time you don't do SMIs.

And where do I buy one of those systems? SMIs are a real problem today,
we need help to make them go away.