Re: [RFC PATCH v2 2/6] x86/arch_prctl: add ARCH_GET_NOPTI and ARCH_SET_NOPTI to enable/disable PTI

From: Borislav Petkov
Date: Tue Jan 09 2018 - 16:46:17 EST


On Tue, Jan 09, 2018 at 10:32:27PM +0100, Willy Tarreau wrote:
> Requiring a reboot just to fix a performance problem you've discovered
> the hard way is not the most friendly way to help users I'm afraid.

That's a very strange argument: if you know you'd need max perf, you
boot with pti=allow_optout.

Color me confused.

--
Regards/Gruss,
Boris.

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