Re: [PATCH v3 05/37] s390/mm: provide memory management functions for protected KVM guests

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On 20.02.20 11:39, Christian Borntraeger wrote:
> From: Claudio Imbrenda <imbrenda@xxxxxxxxxxxxx>
> 
> This provides the basic ultravisor calls and page table handling to cope
> with secure guests:
> - provide arch_make_page_accessible
> - make pages accessible after unmapping of secure guests
> - provide the ultravisor commands convert to/from secure
> - provide the ultravisor commands pin/unpin shared
> - provide callbacks to make pages secure (inacccessible)
>  - we check for the expected pin count to only make pages secure if the
>    host is not accessing them
>  - we fence hugetlbfs for secure pages
> 
> Co-developed-by: Ulrich Weigand <Ulrich.Weigand@xxxxxxxxxx>
> Signed-off-by: Ulrich Weigand <Ulrich.Weigand@xxxxxxxxxx>
> Signed-off-by: Claudio Imbrenda <imbrenda@xxxxxxxxxxxxx>
> [borntraeger@xxxxxxxxxx: patch merging, splitting, fixing]
> Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>

Acked-by: David Hildenbrand <david@xxxxxxxxxx>

-- 
Thanks,

David / dhildenb




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