Re: [PATCH 05/14] x86/microcode/intel: Expose find_matching_signature() for IFS

Borislav Petkov
2022-11-02T19:03:30Z

On Fri, Oct 21, 2022 at 01:34:04PM -0700, Jithu Joseph wrote:
> IFS uses 'scan test images' provided by Intel that can be regarded as
> firmware. IFS test image carries microcode header with extended signature
> table.
>
> Expose find_matching_signature() for verifying if the test image
> header or the extended signature table indicate whether an IFS test image
> is fit to run on a system. Add microcode_intel_ prefix to the
> function name.

This doesn't look like the right design to me:

If this is going to be generic CPU-vendor related code which other
facilities like the microcode loader can use, then the prefix should be
intel_<bla>. Just like intel_cpu_signatures_match().

Then that code should either be in a lib-like compilation unit or simply
in arch/x86/kernel/cpu/intel.c. Just like intel_cpu_signatures_match().

Ok?

--
Regards/Gruss,
Boris.