Re: [RESEND PATCH v3 3/9] EDAC/ghes: Make ghes_edac a proper module to remove the dependency on ghes

Yazen Ghannam
2022-08-29T15:59:44Z

On Sat, Aug 27, 2022 at 07:22:48AM +0200, Borislav Petkov wrote:
> On Fri, Aug 26, 2022 at 10:42:13PM +0000, Elliott, Robert (Servers) wrote:
> > 4. In the help text for each module that looks for GHES and refuses to load
> > (e.g., EDAC_AMD64), add a sentence:
> >
> > This module does not load on a system supporting ACPI GHES.
>
> It is not "system supporting ACPI GHES." - it is on a system which is
> *known* to have a more or less tested GHES implementation. The notoriety
> of firmware RAS brokenness is well known.
>
> So please stop this - there's a world outside HP BIOS.
>
> None of this is needed for this patchset.
>

GHES can be used for more than just memory errors. There are platforms where
memory errors are handled through the OS MCA, and PCIe AER errors are handled
through the FW, for example.

Is the HPE Server platform guaranteed to always provide memory errors through
GHES regardless of CPU vendor/architecture?

Thanks,
Yazen