Re: [PATCH v4 19/36] KVM: s390: protvirt: handle secure guest prefix pages

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On Mon, 24 Feb 2020 06:40:50 -0500
Christian Borntraeger <borntraeger@xxxxxxxxxx> wrote:

> From: Janosch Frank <frankja@xxxxxxxxxxxxx>
> 
> The SPX instruction is handled by the ultravisor. We do get a
> notification intercept, though. Let us update our internal view.
> 
> In addition to that, when the guest prefix page is not secure, an
> intercept 112 (0x70) is indicated. Let us make the prefix pages
> secure again.
> 
> Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
> Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
> [borntraeger@xxxxxxxxxx: patch merging, splitting, fixing]
> Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
> ---
>  arch/s390/include/asm/kvm_host.h |  1 +
>  arch/s390/kvm/intercept.c        | 18 ++++++++++++++++++
>  2 files changed, 19 insertions(+)

Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>




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