On 04/16/2018 05:44 PM, David Hildenbrand wrote:
>
>>
>> diff --git a/target/s390x/gen-features.c b/target/s390x/gen-features.c
>> index 0cdbc15..0d5b0f7 100644
>> --- a/target/s390x/gen-features.c
>> +++ b/target/s390x/gen-features.c
>> @@ -447,6 +447,9 @@ static uint16_t full_GEN12_GA1[] = {
>> S390_FEAT_ADAPTER_INT_SUPPRESSION,
>> S390_FEAT_EDAT_2,
>> S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2,
>> + S390_FEAT_AP_QUERY_CONFIG_INFO,
>> + S390_FEAT_AP_FACILITIES_TEST,
>> + S390_FEAT_AP,
>> };
>>
>
> Now I have to ask a very stupid question:
>
> I heard that the execution controls in the SIE block for AP are one of
> the oldest ones we have around. How can it be that the AP feature cannot
> be used before zEC12?
It was a suggestion from the crypto team due to testability. Nobody has a z196
with the older cards.