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Re: [PATCH] AMD/IOMMU: don't leave page table mapped when unmapping ...

To: Jan Beulich <jbeulich@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
From: Paul Durrant <xadimgnik@xxxxxxxxx>
Date: Thu, 19 Aug 2021 19:55:48 +0100
Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
Delivery-date: Thu, 19 Aug 2021 18:55:52 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 19/08/2021 09:03, Jan Beulich wrote:

... an already not mapped page. With all other exit paths doing the
unmap, I have no idea how I managed to miss that aspect at the time.

Fixes: ad591454f069 ("AMD/IOMMU: don't needlessly trigger errors/crashes when 
unmapping a page")
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>


Reviewed-by: Paul Durrant <paul@xxxxxxx>

References:
- [PATCH] AMD/IOMMU: don't leave page table mapped when unmapping ...
  - From: Jan Beulich

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