Re: [PATCH RFC v1 0/8] x86/microcode: Enable uniform feature

From: Borislav Petkov

Date: Tue Sep 29 2026 - 14:48:10 EST


On Wed, Sep 16, 2026 at 11:10:19PM +0000, Chang S. Bae wrote:
> == Introduction ==
>
> Intel introduces a new microcode loading feature - "uniform". With this
> feature, loading microcode from one logical CPU can update the whole socket
> or the entire system. The hardware implementation works as follows:
>
> <-- paste the appendix here
>
> Then, I guess I may say something about its side-effect which in fact is one
> of the motivation to support this feature. Could be combining next two
> sections into a summary before calling out review points.

Yah, the approach should always be:

Introduce the thing to unenlightened readers. Keep it simple.

Talk about it and implications and blabla.

Ok, loading on an arbitrary thread and getting everyone to upload sounds like
a good simplification for software.

But I guess I'll see how "simple" it really turns out after looking at the
rest.

Thx.

--
Regards/Gruss,
Boris.

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