Messages in this thread | | | Date | Wed, 10 Jan 2018 19:06:27 +0100 (CET) | From | Thomas Gleixner <> | Subject | Re: [tip:x86/pti] x86/spectre: Add boot time option to select Spectre v2 mitigation |
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On Wed, 10 Jan 2018, Tom Lendacky wrote: > > +retpoline_auto: > > + if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) { > > Not specifying anything on the command line will get SPECTRE_V2_CMD_AUTO, > so boot_cpu_has(X86_FEATURE_LFENCE_RDTSC) needs to be checked since it > won't have been checked previously.
Dammit.
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