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Groups > linux.kernel > #1698514
| From | Baoquan He <bhe@redhat.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v8 06/13] iommu/amd: copy old trans table from old kernel |
| Date | 2017-07-28 09:00 +0200 |
| Message-ID | <u87pD-gP-11@gated-at.bofh.it> (permalink) |
| References | <u5BWV-2C2-5@gated-at.bofh.it> <u5BWW-2C2-35@gated-at.bofh.it> <u7T3k-7P8-25@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 07/27/17 at 05:38pm, Joerg Roedel wrote:
> On Fri, Jul 21, 2017 at 04:59:04PM +0800, Baoquan He wrote:
> > @@ -2128,9 +2131,43 @@ static void early_enable_iommu(struct amd_iommu *iommu)
> > static void early_enable_iommus(void)
> > {
> > struct amd_iommu *iommu;
> > + bool is_pre_enabled = false;
> >
> > - for_each_iommu(iommu)
> > - early_enable_iommu(iommu);
> > + for_each_iommu(iommu) {
> > + if (translation_pre_enabled(iommu)) {
> > + is_pre_enabled = true;
> > + break;
> > + }
> > + }
>
> is_pre_enabled should only be true when _all_ iommus are pre-enabled. If
> only one is found disabled just disable the others and continue without
> copying the device table.
OK, will change as you suggested.
>
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[PATCH v8 00/13] Fix the on-flight DMA issue on system with amd iommu Baoquan He <bhe@redhat.com> - 2017-07-21 11:00 +0200
[PATCH v8 05/13] iommu/amd: Add function copy_dev_tables() Baoquan He <bhe@redhat.com> - 2017-07-21 11:00 +0200
Re: [PATCH v8 05/13] iommu/amd: Add function copy_dev_tables() Joerg Roedel <jroedel@suse.de> - 2017-07-27 17:30 +0200
Re: [PATCH v8 05/13] iommu/amd: Add function copy_dev_tables() Baoquan He <bhe@redhat.com> - 2017-07-28 06:00 +0200
[PATCH v8 06/13] iommu/amd: copy old trans table from old kernel Baoquan He <bhe@redhat.com> - 2017-07-21 11:00 +0200
Re: [PATCH v8 06/13] iommu/amd: copy old trans table from old kernel Joerg Roedel <jroedel@suse.de> - 2017-07-27 17:40 +0200
Re: [PATCH v8 06/13] iommu/amd: copy old trans table from old kernel Baoquan He <bhe@redhat.com> - 2017-07-28 09:00 +0200
[PATCH v8 12/13] iommu/amd: Clear out the GV flag when handle deferred domain attach Baoquan He <bhe@redhat.com> - 2017-07-21 11:10 +0200
[PATCH v8 07/13] iommu/amd: Do sanity check for irq remap of old dev table entry Baoquan He <bhe@redhat.com> - 2017-07-21 11:10 +0200
[PATCH v8 11/13] iommu/amd: Don't copy GCR3 table root pointer Baoquan He <bhe@redhat.com> - 2017-07-21 11:10 +0200
Re: [PATCH v8 11/13] iommu/amd: Don't copy GCR3 table root pointer Baoquan He <bhe@redhat.com> - 2017-07-24 02:00 +0200
Re: [PATCH v8 11/13] iommu/amd: Don't copy GCR3 table root pointer Joerg Roedel <jroedel@suse.de> - 2017-07-27 18:00 +0200
Re: [PATCH v8 11/13] iommu/amd: Don't copy GCR3 table root pointer Baoquan He <bhe@redhat.com> - 2017-07-28 11:10 +0200
[PATCH v8 09/13] iommu/amd: Use is_attach_deferred call-back Baoquan He <bhe@redhat.com> - 2017-07-21 11:10 +0200
Re: [PATCH v8 09/13] iommu/amd: Use is_attach_deferred call-back Joerg Roedel <jroedel@suse.de> - 2017-07-27 18:00 +0200
Re: [PATCH v8 09/13] iommu/amd: Use is_attach_deferred call-back Baoquan He <bhe@redhat.com> - 2017-07-28 06:10 +0200
[PATCH v8 13/13] iommu/amd: Disable iommu only if amd_iommu=off is specified Baoquan He <bhe@redhat.com> - 2017-07-21 11:10 +0200
Re: [PATCH v8 13/13] iommu/amd: Disable iommu only if amd_iommu=off is specified Joerg Roedel <jroedel@suse.de> - 2017-07-27 18:00 +0200
Re: [PATCH v8 13/13] iommu/amd: Disable iommu only if amd_iommu=off is specified Baoquan He <bhe@redhat.com> - 2017-07-28 11:10 +0200
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