Re: [RFC PATCH v6 04/26] x86/fpu/xstate: Introduce XSAVES system states

From: Borislav Petkov
Date: Tue Dec 04 2018 - 13:16:46 EST


On Tue, Dec 04, 2018 at 09:08:11AM -0800, Yu-cheng Yu wrote:
> Then we will do this very often. Why don't we create all three in the
> beginning: xfeatures_mask_all, xfeatures_mask_user, and xfeatures_mask_system?

Because the _all thing is the OR-ed product of the two and then you
don't have to update it when the _user and the _system ones change
because you'll be creating it on the fly each time.

--
Regards/Gruss,
Boris.

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