Re: [PATCH v9 4/5] x86/cpuid: fix unbootable VMs by really inlining memcmp() in hypervisor_cpuid_base()

From: Borislav Petkov

Date: Tue Sep 15 2026 - 01:12:44 EST


On Mon, Sep 14, 2026 at 08:22:08AM -0300, Mauricio Faria de Oliveira wrote:
> In the review of the original patchset (fixed by this series) it is
> mentioned that a compiler might turn it into a memcmp() [1] -- and thus
> revert back to the same issue.
>
> [1] https://lore.kernel.org/all/877ccz12ab.ffs@tglx/

Hmm, never heard that before but that doesn't mean anything. Probably should
mention it in one of the commit messages so that we know for the future...

--
Regards/Gruss,
Boris.

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