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

Cornelia Huck
2020-02-25T12:15:23Z

On Mon, 24 Feb 2020 06:40:50 -0500
Christian Borntraeger <borntraeger@de.ibm.com> wrote:

> From: Janosch Frank <frankja@linux.ibm.com>
>
> 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@linux.ibm.com>
> Reviewed-by: David Hildenbrand <david@redhat.com>
> [borntraeger@de.ibm.com: patch merging, splitting, fixing]
> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
> ---
> arch/s390/include/asm/kvm_host.h | 1 +
> arch/s390/kvm/intercept.c | 18 ++++++++++++++++++
> 2 files changed, 19 insertions(+)

Reviewed-by: Cornelia Huck <cohuck@redhat.com>