Re: [Xen-devel] [PATCH] AMD/IOMMU: restore DTE fields in amd_iommu_setup_domain_device()

[Jürgen Groß <jgross@xxxxxxxx>]

On 13.11.19 14:50, Jan Beulich wrote:
> Commit 1b00c16bdf ("AMD/IOMMU: pre-fill all DTEs right after table
> allocation") moved ourselves into a more secure default state, but
> didn't take sufficient care to also undo the effects when handing a
> previously disabled device back to a(nother) domain. Put the fields
> that may have been changed elsewhere back to their intended values
> (some fields amd_iommu_disable_domain_device() touches don't
> currently get written anywhere else, and hence don't need modifying
> here).
>
> Reported-by: Sander Eikelenboom <linux@xxxxxxxxxxxxxx>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Release-acked-by: Juergen Gross <jgross@xxxxxxxx>


Juergen

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