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RE: [PATCH 0/3][4.16?] VT-d: misc (regression) fixes


  • To: Jan Beulich <jbeulich@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
  • Date: Wed, 10 Nov 2021 06:46:28 +0000
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  • Cc: Paul Durrant <paul@xxxxxxx>, Ian Jackson <ian.jackson@xxxxxxxxxx>
  • Delivery-date: Wed, 10 Nov 2021 06:46:53 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
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  • Thread-topic: [PATCH 0/3][4.16?] VT-d: misc (regression) fixes

> From: Jan Beulich <jbeulich@xxxxxxxx>
> Sent: Tuesday, November 9, 2021 10:56 PM
> 
> 1: per-domain IOMMU bitmap needs to have dynamic size
> 2: fix reduced page table levels support when sharing tables
> 3: don't needlessly engage the untrusted-MSI workaround
> 
> As to 4.16 considerations: Only patch 1 addresses a regression
> introduced after 4.15, the others are older. Patch 3 additionally
> only addresses an inefficiency; the code we have is correct from
> a functional pov.
> 

All look good to me:

        Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>

 


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