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Date: Wed, 18 Mar 2020 11:32:19 +0100 From: Borislav Petkov <bp@...en8.de> To: Xiaoyao Li <xiaoyao.li@...el.com> Cc: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] x86/cpufeatures: make bits in cpu_caps_cleared[] and cpu_cpus_set[] exclusive On Wed, Mar 18, 2020 at 02:16:24PM +0800, Xiaoyao Li wrote: > In apply_forced_caps(), cpu_caps_set[] overrides cpu_caps_cleared[], so > that setup_clear_cpu_cap() cannot clear one cap if setup_force_cpu_cap() > sets the cap before it. Context pls: what is the observation, what are you trying to do, reproducer, etc? Thx. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette
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