s390/cpumodel: remove KSS from the default model of z14

The SIE_KSS feature will allow a guest to use KSS for a nested guest.
To create a nested guest the SIE_F2 facility is still necessary.
Since SIE_F2 is not part of the default model it does not make
a lot of sense to provide the SIE_KSS feature in the default model.
Let's also create a dependency check.
Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: NJason J. Herne <jjherne@linux.vnet.ibm.com>
Reviewed-by: NJanosch Frank <frankja@linux.vnet.ibm.com>
Message-Id: <1500550051-7821-2-git-send-email-borntraeger@de.ibm.com>
Acked-by: NDavid Hildenbrand <david@redhat.com>
Signed-off-by: NCornelia Huck <cohuck@redhat.com>

target/s390x/cpu_models.c

@@ -723,6 +723,7 @@ static void check_consistency(const S390CPUModel *model)
         { S390_FEAT_KLMD_SHAKE_256, S390_FEAT_MSA },
         { S390_FEAT_PRNO_TRNG_QRTCR, S390_FEAT_MSA_EXT_5 },
         { S390_FEAT_PRNO_TRNG, S390_FEAT_MSA_EXT_5 },
+        { S390_FEAT_SIE_KSS, S390_FEAT_SIE_F2 },
     };
     int i;
 

target/s390x/gen-features.c

@@ -535,7 +535,6 @@ static uint16_t default_GEN14_GA1[] = {
     S390_FEAT_GROUP_MSA_EXT_6,
     S390_FEAT_GROUP_MSA_EXT_7,
     S390_FEAT_GROUP_MSA_EXT_8,
-    S390_FEAT_SIE_KSS,
 };
 
 /****** END FEATURE DEFS ******/