| Date | Mon, 7 Feb 2022 13:58:48 -0800 | From | Kees Cook <> | Subject | Re: [PATCH v2 2/6] x86/cpu: Remove "nosep" |
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On Thu, Jan 27, 2022 at 12:56:22PM +0100, Borislav Petkov wrote: > From: Borislav Petkov <bp@suse.de> > > That chicken bit was added by > > 4f88651125e2 ("[PATCH] i386: allow disabling X86_FEATURE_SEP at boot") > > but measuring int80 vsyscall performance on 32-bit doesn't matter > anymore. > > If still needed, one can boot with > > clearcpuid=sep > > to disable that feature for testing. > > Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Kees Cook <keescook@chromium.org>
-- Kees Cook
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