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Re: [PATCH v5 6/8] iommu/amd: Do not re-enable dev table entries in kdump

From Joerg Roedel <joro@8bytes.org>
Newsgroups linux.kernel
Subject Re: [PATCH v5 6/8] iommu/amd: Do not re-enable dev table entries in kdump
Date 2016-09-20 14:50 +0200
Message-ID <sjsEO-31h-29@gated-at.bofh.it> (permalink)
References <shGsx-ar-11@gated-at.bofh.it> <shGsy-ar-31@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Thu, Sep 15, 2016 at 11:03:24PM +0800, Baoquan He wrote:
> This enabling should have been done in normal kernel. It's unnecessary
> to enable it again in kdump kernel.
> 
> And clean up the function comments of init_device_table_dma.

Well, no. We don't want to make any assumptions on what the previous
kernel did and what it did not. The init_device_table_dma() code should
run anyway.

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Thread

[PATCH v5 0/8] Fix kdump faults on system with amd iommu Baoquan He <bhe@redhat.com> - 2016-09-15 17:10 +0200
  [PATCH v5 4/8] iommu/amd: Add function copy_dev_tables Baoquan He <bhe@redhat.com> - 2016-09-15 17:10 +0200
    Re: [PATCH v5 4/8] iommu/amd: Add function copy_dev_tables Joerg Roedel <joro@8bytes.org> - 2016-09-20 14:00 +0200
      Re: [PATCH v5 4/8] iommu/amd: Add function copy_dev_tables Baoquan He <bhe@redhat.com> - 2016-09-21 12:20 +0200
  [PATCH v5 7/8] iommu/amd: Don't update domain info to dte entry at iommu init stage Baoquan He <bhe@redhat.com> - 2016-09-15 17:10 +0200
    Re: [PATCH v5 7/8] iommu/amd: Don't update domain info to dte entry  at iommu init stage Joerg Roedel <joro@8bytes.org> - 2016-09-20 15:00 +0200
      Re: [PATCH v5 7/8] iommu/amd: Don't update domain info to dte entry  at iommu init stage Baoquan He <bhe@redhat.com> - 2016-09-21 12:30 +0200
        Re: [PATCH v5 7/8] iommu/amd: Don't update domain info to dte entry  at iommu init stage Baoquan He <bhe@redhat.com> - 2016-09-21 15:30 +0200
  [PATCH v5 2/8] iommu/amd: add early_enable_iommu() wrapper function Baoquan He <bhe@redhat.com> - 2016-09-15 17:10 +0200
  [PATCH v5 6/8] iommu/amd: Do not re-enable dev table entries in kdump Baoquan He <bhe@redhat.com> - 2016-09-15 17:10 +0200
    Re: [PATCH v5 6/8] iommu/amd: Do not re-enable dev table entries in  kdump Joerg Roedel <joro@8bytes.org> - 2016-09-20 14:50 +0200
      Re: [PATCH v5 6/8] iommu/amd: Do not re-enable dev table entries in  kdump Baoquan He <bhe@redhat.com> - 2016-09-21 12:30 +0200
  [PATCH v5 5/8] iommu/amd: copy old trans table from old kernel Baoquan He <bhe@redhat.com> - 2016-09-15 17:10 +0200
    Re: [PATCH v5 5/8] iommu/amd: copy old trans table from old kernel Joerg Roedel <joro@8bytes.org> - 2016-09-20 14:50 +0200
      Re: [PATCH v5 5/8] iommu/amd: copy old trans table from old kernel Baoquan He <bhe@redhat.com> - 2016-09-21 12:20 +0200
  [PATCH v5 1/8] iommu/amd: Detect pre enabled translation Baoquan He <bhe@redhat.com> - 2016-09-15 17:10 +0200

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