Re: [Patch v4 3/9] iommu/amd: Detect pre enabled translation

From	Baoquan He <bhe@redhat.com>
Newsgroups	linux.kernel
Subject	Re: [Patch v4 3/9] iommu/amd: Detect pre enabled translation
Date	2016-05-30 05:30 +0200
Message-ID	<rEm3T-73G-19@gated-at.bofh.it> (permalink)
References	<rCAul-619-1@gated-at.bofh.it> <rCAul-619-3@gated-at.bofh.it> <rDMa6-Tn-17@gated-at.bofh.it> <rEm3T-73G-9@gated-at.bofh.it>
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On 05/30/16 at 11:24am, Baoquan He wrote:
> On 05/28/16 at 08:49pm, Wan Zongshun wrote:
> In fact I am still debugging and trying to figure out what need be done
> further to stop the IO_PAGE_FAULT happened on ethernet network card. I
> kept changing code and adjust the patches. Up to now seems I still
> didn't figure out why. There must be something I didn't notice and
> everything will be fine as soon as I close that valve. With my
> understand pci bug scanning will detect each pci device and do the
 		 |_ bus
> initialization job like setting configuration space registers and
> control registers. After that we can safely re-init the pci device and
> re-install the new io-page tables, and this is how Joerg has done for
> vt-d fix for kdump if my understanding is correct. And I tried to do
> like that in this patchset, don't know why it doesn't work.

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Thread

[Patch v4 3/9] iommu/amd: Detect pre enabled translation Baoquan He <bhe@redhat.com> - 2016-05-25 08:30 +0200
  Re: [Patch v4 3/9] iommu/amd: Detect pre enabled translation Wan Zongshun <vw@iommu.org> - 2016-05-28 15:10 +0200
    Re: [Patch v4 3/9] iommu/amd: Detect pre enabled translation Baoquan He <bhe@redhat.com> - 2016-05-30 05:30 +0200
      Re: [Patch v4 3/9] iommu/amd: Detect pre enabled translation Baoquan He <bhe@redhat.com> - 2016-05-30 05:30 +0200

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