From: Baoquan He <bhe@redhat.com>
To: Wan Zongshun <vw@iommu.org>
Cc: joro@8bytes.org, linux-kernel@vger.kernel.org,
vincent.wan@amd.com, iommu@lists.linux-foundation.org,
dyoung@redhat.com
Subject: Re: [Patch v4 3/9] iommu/amd: Detect pre enabled translation
Date: Mon, 30 May 2016 11:27:33 +0800 [thread overview]
Message-ID: <20160530032733.GC2488@x1.redhat.com> (raw)
In-Reply-To: <20160530032407.GB2488@x1.redhat.com>
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.
next prev parent reply other threads:[~2016-05-30 3:27 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-25 6:28 [Patch v4 0/9] *** Fix kdump failure in system with amd iommu*** Baoquan He
2016-05-25 6:28 ` [Patch v4 1/9] iommu/amd: clean up the cmpxchg64 invocation Baoquan He
2016-05-25 6:28 ` [Patch v4 2/9] iommu/amd: Use standard bitmap operation to set bitmap Baoquan He
2016-05-25 6:28 ` [Patch v4 3/9] iommu/amd: Detect pre enabled translation Baoquan He
2016-05-28 12:49 ` Wan Zongshun
2016-05-30 3:24 ` Baoquan He
2016-05-30 3:27 ` Baoquan He [this message]
2016-05-25 6:28 ` [Patch v4 4/9] iommu/amd: add early_enable_iommu() helper function Baoquan He
2016-05-25 6:28 ` [Patch v4 5/9] iommu/amd: Define bit fields for DTE particularly Baoquan He
2016-05-25 6:28 ` [Patch v4 6/9] iommu/amd: Add function copy_dev_tables Baoquan He
2016-05-28 13:08 ` Wan Zongshun
2016-05-30 3:32 ` Baoquan He
2016-05-25 6:28 ` [Patch v4 7/9] iommu/amd: copy old trans table from old kernel Baoquan He
2016-05-28 13:25 ` Wan Zongshun
2016-05-25 6:28 ` [Patch v4 8/9] iommu/amd: Do not initialize dev tables again in kdump Baoquan He
2016-05-25 6:28 ` [Patch v4 9/9] iommu/amd: Check the validation of irq table and domain id Baoquan He
2016-05-28 13:30 ` Wan Zongshun
2016-05-30 5:10 ` Baoquan He
2016-05-25 7:02 ` [Patch v4 0/9] *** Fix kdump failure in system with amd iommu*** Baoquan He
2016-05-25 7:15 ` Baoquan He
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