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Introduces two new VM crypto device attributes (KVM_S390_VM_CRYPTO)
to enable or disable AP instruction interpretation from userspace
via the KVM_SET_DEVICE_ATTR ioctl:
* The KVM_S390_VM_CRYPTO_ENABLE_APIE attribute enables hardware
interpretation of AP instructions executed on the guest.
* The KVM_S390_VM_CRYPTO_DISABLE_APIE attribute disables hardware
interpretation of AP instructions executed on the guest. In this
case the instructions will be intercepted and pass through to
the guest.
Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20180925231641.4954-25-akrowiak@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
37940fb0b6