Messages in this thread | | | Date | Tue, 22 Sep 2020 00:52:51 +0200 | From | Pavel Machek <> | Subject | Re: [PATCH v12 1/8] x86/cet/ibt: Add Kconfig option for user-mode Indirect Branch Tracking |
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Hi!
> > +config X86_INTEL_BRANCH_TRACKING_USER > > + prompt "Intel Indirect Branch Tracking for user-mode" > > Take the "Intel " and "INTEL_" out, please. It will only cause us all > pain later if some of our x86 compatriots decide to implement this.
Are other x86 manufacturers legally allowed to implement that?
> > If the kernel is to be used only on older systems that do not support > > IBT, and the size of the binary is important, you can save 900 KB by > > disabling this feature. > > > > Otherwise, if unsure, say Y. > > 900k seems like a *lot*. Where the heck does that come from? > > Also, comments like that don't age very well. Consider: > > Support for this feature is only known to be present on Intel > processors released in 2020 or later. This feature is also > known to increase kernel text size substantially. > > If unsure, say N.
That is much better, thanks. Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html [unhandled content-type:application/pgp-signature] | |