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From: Joerg Roedel <joro@8bytes.org>
To: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: "Raj, Ashok" <ashok.raj@intel.com>,
	Sohil Mehta <sohil.mehta@intel.com>,
	Alex Williamson <alex.williamson@redhat.com>,
	David Woodhouse <dwmw2@infradead.org>,
	iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org,
	Gayatri Kammela <gayatri.kammela@intel.com>,
	Ravi V Shankar <ravi.v.shankar@intel.com>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Lu Baolu <baolu.lu@linux.intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>
Subject: Re: [PATCH v7 0/5] Add Intel IOMMU debugfs support
Date: Thu, 15 Feb 2018 10:53:38 +0100	[thread overview]
Message-ID: <20180215095337.fccoozdclfnbepi4@8bytes.org> (raw)
In-Reply-To: <20180213145332.35c73eda@jacob-builder>

On Tue, Feb 13, 2018 at 02:53:32PM -0800, Jacob Pan wrote:
> We did start out with /dev/mem but run into CONFIG_STRICT_DEVMEM
> requirement which is turned on by default.
> libpci is only limited to PCI config space access, right?

Even if /dev/mem is not an option, I am still not convinced that this is
a good idea. How should this be used? Will you just use it to debug
Intel IOMMUs when you guys work on the driver or should users report the
data back when they hit problems?



	Joerg

  reply	other threads:[~2018-02-15  9:53 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-03  0:49 Sohil Mehta
2018-02-03  0:49 ` [PATCH v7 1/5] iommu/vt-d: Relocate struct/function declarations to its header files Sohil Mehta
2018-02-03  0:49 ` [PATCH v7 2/5] iommu/vt-d: Enable debugfs support to show context internals Sohil Mehta
2018-02-03  0:49 ` [PATCH v7 3/5] iommu/vt-d: Add debugfs support to show register contents Sohil Mehta
2018-02-03  0:50 ` [PATCH v7 4/5] iommu/vt-d: Add debugfs support to show Pasid table contents Sohil Mehta
2018-02-03  0:50 ` [PATCH v7 5/5] iommu/vt-d: Add debugfs support for Interrupt remapping Sohil Mehta
2018-02-04 14:13 ` [PATCH v7 0/5] Add Intel IOMMU debugfs support Andy Shevchenko
2018-02-13 14:03 ` Joerg Roedel
2018-02-13 21:40   ` Raj, Ashok
2018-02-13 22:53     ` Jacob Pan
2018-02-15  9:53       ` Joerg Roedel [this message]
2018-02-15 16:38         ` Jacob Pan
2018-03-15 13:18           ` Joerg Roedel
2018-03-19 16:37             ` Jacob Pan
2018-03-29  8:48               ` Joerg Roedel
2018-03-29 15:52                 ` Gary R Hook
2018-03-29 16:05                 ` Jacob Pan
2018-02-18 22:15     ` Yves-Alexis Perez
2018-02-20 22:25       ` Jacob Pan
2018-02-22  7:48         ` Yves-Alexis Perez
2018-02-22 17:09           ` Jacob Pan

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