Messages in this thread | | | Date | Tue, 23 Jan 2018 14:49:56 -0800 | From | Andi Kleen <> | Subject | Re: [RFC 09/10] x86/enter: Create macros to restrict/unrestrict Indirect Branch Speculation |
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> Not sure. Maybe to start, the answer might be to allow it to be set for > the ultra-paranoid, but in general don't enable it by default. Having it > enabled would be an alternative to someone deciding to disable SMT, since > that would have even more of a performance impact.
I agree. A reasonable strategy would be to only enable it for processes that have dumpable disabled. This should be already set for high value processes like GPG, and allows others to opt-in if they need to.
-Andi
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