From: Yves-Alexis Perez <corsac-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org>
To: Jacob Pan <jacob.jun.pan-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
Cc: Ravi V Shankar
<ravi.v.shankar-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
"Raj, Ashok" <ashok.raj-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Fenghua Yu <fenghua.yu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Andy Shevchenko
<andriy.shevchenko-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>,
David Woodhouse <dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
Gayatri Kammela
<gayatri.kammela-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH v7 0/5] Add Intel IOMMU debugfs support
Date: Thu, 22 Feb 2018 08:48:37 +0100 [thread overview]
Message-ID: <1519285717.2388.11.camel@debian.org> (raw)
In-Reply-To: <20180220142512.039309aa@jacob-builder>
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On Tue, 2018-02-20 at 14:25 -0800, Jacob Pan wrote:
> I didn't know about chipsec but reading the code seems to rely on an
> out-of-tree kernel module. I don't think it matches what we need here.
Yes good indeed, I had forgot about that. Maybe the userland part is still
useful, but there's definitely a need for (protected) access to privileged
memory (and access to /dev/mem is less practical than debugfs, I guess).
Regards,
--
Yves-Alexis
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WARNING: multiple messages have this Message-ID (diff)
From: Yves-Alexis Perez <corsac@debian.org>
To: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: "Raj, Ashok" <ashok.raj@intel.com>,
Joerg Roedel <joro@8bytes.org>,
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, 22 Feb 2018 08:48:37 +0100 [thread overview]
Message-ID: <1519285717.2388.11.camel@debian.org> (raw)
In-Reply-To: <20180220142512.039309aa@jacob-builder>
[-- Attachment #1: Type: text/plain, Size: 455 bytes --]
On Tue, 2018-02-20 at 14:25 -0800, Jacob Pan wrote:
> I didn't know about chipsec but reading the code seems to rely on an
> out-of-tree kernel module. I don't think it matches what we need here.
Yes good indeed, I had forgot about that. Maybe the userland part is still
useful, but there's definitely a need for (protected) access to privileged
memory (and access to /dev/mem is less practical than debugfs, I guess).
Regards,
--
Yves-Alexis
[-- Attachment #2: This is a digitally signed message part --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
next prev parent reply other threads:[~2018-02-22 7:48 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-03 0:49 [PATCH v7 0/5] Add Intel IOMMU debugfs support Sohil Mehta
2018-02-03 0:49 ` Sohil Mehta
[not found] ` <1517619001-148586-1-git-send-email-sohil.mehta-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
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 ` 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 ` 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 0:49 ` 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 ` Sohil Mehta
2018-02-03 0:50 ` [PATCH v7 5/5] iommu/vt-d: Add debugfs support for Interrupt remapping Sohil Mehta
2018-02-03 0:50 ` Sohil Mehta
2018-02-04 14:13 ` [PATCH v7 0/5] Add Intel IOMMU debugfs support Andy Shevchenko
2018-02-04 14:13 ` Andy Shevchenko
2018-02-13 14:03 ` Joerg Roedel
2018-02-13 14:03 ` Joerg Roedel
2018-02-13 21:40 ` Raj, Ashok
2018-02-13 22:53 ` Jacob Pan
2018-02-13 22:53 ` Jacob Pan
2018-02-15 9:53 ` Joerg Roedel
2018-02-15 9:53 ` Joerg Roedel
[not found] ` <20180215095337.fccoozdclfnbepi4-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2018-02-15 16:38 ` Jacob Pan
2018-02-15 16:38 ` Jacob Pan
2018-03-15 13:18 ` Joerg Roedel
[not found] ` <20180315131854.s6xmltsvsysublcw-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2018-03-19 16:37 ` Jacob Pan
2018-03-19 16:37 ` Jacob Pan
2018-03-29 8:48 ` Joerg Roedel
2018-03-29 8:48 ` Joerg Roedel
[not found] ` <20180329084824.fvy7cg2wban4by4n-zLv9SwRftAIdnm+yROfE0A@public.gmane.org>
2018-03-29 15:52 ` Gary R Hook
2018-03-29 15:52 ` Gary R Hook
2018-03-29 16:05 ` Jacob Pan
2018-03-29 16:05 ` Jacob Pan
2018-02-18 22:15 ` Yves-Alexis Perez
2018-02-18 22:15 ` Yves-Alexis Perez
[not found] ` <1518992132.2542.5.camel-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org>
2018-02-20 22:25 ` Jacob Pan
2018-02-20 22:25 ` Jacob Pan
2018-02-22 7:48 ` Yves-Alexis Perez [this message]
2018-02-22 7:48 ` Yves-Alexis Perez
[not found] ` <1519285717.2388.11.camel-8fiUuRrzOP0dnm+yROfE0A@public.gmane.org>
2018-02-22 17:09 ` Jacob Pan
2018-02-22 17:09 ` Jacob Pan
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