Re: [PATCH] x86/mce: Streamline MCE subsystem's naming

Ingo Molnar
2018-12-06T16:27:09Z

* Borislav Petkov <bp@alien8.de> wrote:

> On Wed, Dec 05, 2018 at 07:01:58PM +0100, Ingo Molnar wrote:
> > Oh - I thought we'd have arch/x86/mce/ or so?
> >
> > There's machine check events that are not tied to any particular CPU,
> > correct? So this would be the right conceptual level - and it would also
> > remove the somewhat redundant 'kernel' part.
>
> Well, all the MCE events reported are some way or the other tied to the
> CPU and they're reported in the CPU's MCA banks so I think we want
>
> arch/x86/cpu/mce/

Well, *everything* the kernel does is in some way connected to a CPU,
because we always execute the kernel on a CPU, still we have things like
discrete PMUs and abstractions for other pieces of hardware that are not
per CPU.

So the real question is, is there a signifcant class of MCE events that
are not tied to the reporting channel which is per CPU (-ish ...) MCA
banks?

Thanks,

Ingo