Re: [PATCH v6 10/90] x86/cpu: Rescan CPUID table after disabling PSN

Borislav Petkov <[email protected]> Tue, 12 May 2026 16:34:12 +0200
Newsgroups dev.linux.lists.x86-cpuid,org.kernel.vger.linux-kernel
Message-ID <20260512143412.GDagM6ZLBpvt6X3jzq@fat_crate.local>
On Tue, May 12, 2026 at 09:12:25AM +0200, Ahmed S. Darwish wrote:
> So the min_t()'s intent is just to be defensive against hardware surprises.

But when you read l0->max_std_leaf, you always get the current, highest base
level. So there's nothing to protect against.

Or am I missing something?

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette