Re: [RFC PATCH] EDAC, ghes: Enable per-layer error reporting for ARM

From: Borislav Petkov
Date: Fri Jul 20 2018 - 00:11:02 EST


On Thu, Jul 19, 2018 at 02:36:21PM -0400, Tyler Baicar wrote:
> With the current ghes_edac setup, it seems the only way this could
> work would be to have the firmware always report the module value to

My experience with firmware so far is that it is a lost cause,
considering all the bugs, snafus and incompleteness it demonstrates...

> The other obvious but more messy way would be to have notifiers
> register to be called by ghes_edac and have a custom EDAC driver for
> each CPU to properly populate their layer information.

... which is what we do on x86 and whitelist only known-good platforms
in ghes_edac, which claim that their fw info is correct.

--
Regards/Gruss,
Boris.

ECO tip #101: Trim your mails when you reply.
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