Re: [PATCH] x86/speculation/l1tf: suggest what to do on systems with too much RAM

From: Michal Hocko
Date: Thu Aug 23 2018 - 16:05:26 EST

On Thu 23-08-18 12:38:33, Andi Kleen wrote:
> > There are people who care about L1TF mitigations. I am not going to
> > question their motivation. In any case a hint how to make the mitigation
> > active again sounds more useful than something that sounds as scary as
> > "you are vulnerable".
> FWIW an early version of these patches automatically limited the available
> memory, but Linus pointed out that people likely prefer their memory.

Nobody is questioning that. The point is to give them a hint on how to
make the mitigation active again without going to call for help. The
message does tell them how to _enable_ it and point them to the
documentation on how to _decide_.
Michal Hocko