Re: [Patch v3 Part2 3/9] x86/microcode/intel: Fix collect_cpu_info() to reflect current microcode

From: Dave Hansen
Date: Wed Feb 01 2023 - 14:14:04 EST


On 1/30/23 13:39, Ashok Raj wrote:
> Currently collect_cpu_info() is only returning what was cached earlier
> instead of reading the current revision from the proper MSR.
>
> Collect the current revision and report that value instead of reflecting
> what was cached in the past.
>
> [TBD:
> Need to change microcode/amd.c. I didn't quite follow the logic since
> it reports the revision from the patch file, instead of reporting the
> real PATCH_LEVEL MSR.
>
> Untested on AMD.
> ]

This thread is meandering a bit. I think it's because this changelog
doesn't have a problem statement. It's hard to agree on a patch being a
solution to anything if we haven't first agreed on the problem.

What is the problem?

What does this "fix"?