| Date | Mon, 8 Jan 2018 16:08:00 +0100 | From | Peter Zijlstra <> | Subject | Re: [PATCH v2 4/8] x86/spec_ctrl: Add sysctl knobs to enable/disable SPEC_CTRL feature |
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On Fri, Jan 05, 2018 at 06:12:19PM -0800, Tim Chen wrote: > +void scan_spec_ctrl_feature(struct cpuinfo_x86 *c) > +{ > + if ((!c->cpu_index) && (boot_cpu_has(X86_FEATURE_SPEC_CTRL))) {
We should test X86_BUG_SPECTRE_V1 here too before default enabling this, no?
> + if (!ibrs_admin_disabled) { > + dynamic_ibrs = 1; > + ibrs_enabled = IBRS_ENABLED; > + } > + } > +}
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