Re: [PATCH 0/3] iommu/amd: IOMMU Error Reporting/Handling/Filtering

From: Borislav Petkov
Date: Mon Jun 24 2013 - 03:41:25 EST


On Mon, Jun 24, 2013 at 09:26:48AM +0200, Joerg Roedel wrote:
> On Fri, Jun 21, 2013 at 07:36:25PM +0200, Borislav Petkov wrote:
>
> > IOW, what specific functionality in EDAC are you actually thinking of?
>
> Okay, my believe until yesterday was that EDAC provides a consistent way
> to report hardware errors to userspace. That seems to be wrong. This in
> mind I think having a trace-point for that makes sense.
>
> But this trace-point must not be specific to a single IOMMU driver, I
> want it generic enough so that it can be used by all common IOMMU
> drivers to report hardware misbehaviors to userspace.

Yep, either that or you define a TRACE_EVENT_CLASS which contains common
error info which all iommu drivers report, and those which want to
report more specific information pertaining only to them, then they need
to define a tracepoint based on the iommu event class.

Check the sources for examples.

--
Regards/Gruss,
Boris.

Sent from a fat crate under my desk. Formatting is fine.
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