linux-kernel - Re: [PATCH v2 0/6] Intel IOMMU debugfs support

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Date:   Wed, 22 Nov 2017 10:47:33 -0800
From:   "Raj, Ashok" <ashok.raj@...el.com>
To:     Sohil Mehta <sohil.mehta@...el.com>
Cc:     Joerg Roedel <joro@...tes.org>,
        Alex Williamson <alex.williamson@...hat.com>,
        David Woodhouse <dwmw2@...radead.org>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        Gayatri Kammela <gayatri.kammela@...el.com>,
        Ravi V Shankar <ravi.v.shankar@...el.com>,
        Andriy Shevchenko <andriy.shevchenko@...el.com>,
        Ashok Raj <ashok.raj@...el.com>
Subject: Re: [PATCH v2 0/6] Intel IOMMU debugfs support

Hi Alex

you can add for the whole series

Reviewed By: Ashok Raj <ashok.raj@...el.com>

On Wed, Nov 22, 2017 at 11:25:40AM -0800, Mehta, Sohil wrote:
> Hi all,
> 
> This series aims to add debugfs support for Intel IOMMU. It exposes IOMMU
> registers, internal context and dumps individual table entries to help debug
> Intel IOMMUs.
> 
> The first patch does the ground work for the following patches by creating a new
> Kconfig option - INTEL_IOMMU_DEBUG. It also reorganizes some Intel IOMMU data
> structures. The next five patches add debugfs support for IOMMU context
> internals, extended context, register contents, PASID internals, and Interrupt
> remapping in that order. The information can be accessed in sysfs at
> '/sys/kernel/debug/intel_iommu/'.
> 
> Regards,
> Sohil
> 
> Changes since v1:
>  - Fixed seq_printf formatting
>  - Handled the case when Interrupt remapping is not enabled
> 
> Gayatri Kammela (5):
>   iommu/vt-d: Add debugfs support for Intel IOMMU internals
>   iommu/vt-d: Add Intel IOMMU debugfs to show context internals
>   iommu/vt-d: Add Intel IOMMU debugfs to show extended context internals
>   iommu/vt-d: Add debugfs extension to show register contents
>   iommu/vt-d: Add debugfs extension to show Pasid table contents
> 
> Sohil Mehta (1):
>   iommu/vt-d: Add debugfs support for Intel IOMMU Interrupt remapping
> 
>  drivers/iommu/Kconfig             |  10 +
>  drivers/iommu/Makefile            |   1 +
>  drivers/iommu/intel-iommu-debug.c | 435 ++++++++++++++++++++++++++++++++++++++
>  drivers/iommu/intel-iommu.c       |  35 +--
>  drivers/iommu/intel-svm.c         |   8 -
>  include/linux/intel-iommu.h       |  32 +++
>  include/linux/intel-svm.h         |  10 +-
>  7 files changed, 494 insertions(+), 37 deletions(-)
>  create mode 100644 drivers/iommu/intel-iommu-debug.c
> 
> -- 
> 2.7.4
>