Re: STIBP by default.. Revert?

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On Sun, 18 Nov 2018, Jiri Kosina wrote:

> It's probably not just browsers, but anything running JITed sandboxed 
> code. So the most straightforward way might be the prctl() aproach, where 
> userspace would claim "I do care about this, please fix it up for me". So 
> prctl() + perhaps SECCOMP.

I've just sent SECCOMP handling as a followup to Tim's set.

I still feel like we should make STIBP and IBPB behavior consistent (in a 
sense they should always be used both, or none of them), but that might be 
additional 4.21 optimization.

Thanks,

-- 
Jiri Kosina
SUSE Labs




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