| Date | Mon, 26 Nov 2018 14:37:39 +0100 | From | Ingo Molnar <> | Subject | Re: [patch V2 00/28] x86/speculation: Remedy the STIBP/IBPB overhead |
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* Thomas Gleixner <tglx@linutronix.de> wrote:
> Thats hopefully the final version of this. Changes since V1: > > - Renamed the command line option and related code to spectre_v2_user= as > suggested by Josh. > > - Thought more about the back to back optimization and finally left the > IBPB code in switch_mm(). > > It still removes the ptrace check for the always IBPB case. That's > substantial overhead for dubious value now that the default is > conditional (prctl/seccomp) IBPB. > > - Added two options which allow conditional STIBP and IBPB always mode. > > - Addressed the review comments
With the typo review feedback outlined in the discussions:
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Thanks,
Ingo
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