linux-kernel - Re: [PATCH v2] iommu: Add event tracing feature to iommu

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Date:	Wed, 14 Aug 2013 18:17:58 +0200
From:	Joerg Roedel <joro@...tes.org>
To:	Shuah Khan <shuah.kh@...sung.com>
Cc:	alex.williamson@...hat.com, Varun.Sethi@...escale.com,
	aik@...abs.ru, joe@...ches.com, rostedt@...dmis.org,
	fweisbec@...il.com, mingo@...hat.com, tony@...mide.com,
	ohad@...ery.com, andreas.herrmann@...xeda.com, will.deacon@....com,
	linux-kernel@...r.kernel.org, iommu@...ts.linux-foundation.org,
	shuahkhan@...il.com
Subject: Re: [PATCH v2] iommu: Add event tracing feature to iommu

On Wed, Aug 14, 2013 at 10:06:08AM -0600, Shuah Khan wrote:
> Is this what you have in mind or does my original patch set minus
> the amd_event and drivers/iommu/amd_iommu.c change?
> 
> Patch 1:
> drivers/iommu/Makefile
> drivers/iommu/iommu-traces.c
> include/trace/events/iommu.h
> 
> One patch for each of the following events?
> 
> iommu:add_device_to_group
> iommu:remove_device_from_group
> iommu:attach_device_to_domain
> iommu:detach_device_from_domain
> iommu:unmap
> iommu:map

Right, please do a seperate patch for each event.

> I see what you are saying. Adding event to report_iommu_fault()
> would cover all IOMMUs. I would like to work on adding an event
> unless you already have it in works.

I don't, so feel free to add one too.


	Joerg


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