[qemu-s390x] [RFC 4/5] s390x/cpumodel: enable AP facilities for guest

[Tony Krowiak]

Sets up the following STFLE bits to enable the specified AP
facilities for the guest VM:
        * STFLE.12: Enables the AP Query Configuration Information
                    facility. The AP bus running in the guest uses
                    the information returned from this instruction
                    to configure AP adapters and domains for the
                    guest machine.
        * STFLE.15: Enables the AP Special Command facility. The AP
                    bus running in the guest sets the T bit in
                    register 0 for the PQAP(TAPQ) instruction when
                    scanning for AP devices if this facility is
                    installed.

These facilities are required in order for the AP bus running on
the KVM guest to function properly.

Signed-off-by: Tony Krowiak <address@hidden>
---
 target/s390x/cpu_features.c     |    2 ++
 target/s390x/cpu_features_def.h |    2 ++
 target/s390x/gen-features.c     |    4 ++++
 3 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/target/s390x/cpu_features.c b/target/s390x/cpu_features.c
index 31a4676..63f002c 100644
--- a/target/s390x/cpu_features.c
+++ b/target/s390x/cpu_features.c
@@ -36,8 +36,10 @@ static const S390FeatDef s390_features[] = {
     FEAT_INIT("srs", S390_FEAT_TYPE_STFL, 9, "Sense-running-status facility"),
     FEAT_INIT("csske", S390_FEAT_TYPE_STFL, 10, "Conditional-SSKE facility"),
     FEAT_INIT("ctop", S390_FEAT_TYPE_STFL, 11, "Configuration-topology 
facility"),
+    FEAT_INIT("apqci", S390_FEAT_TYPE_STFL, 12, "Query Adjunct Processor 
Configuration facility"),
     FEAT_INIT("ipter", S390_FEAT_TYPE_STFL, 13, "IPTE-range facility"),
     FEAT_INIT("nonqks", S390_FEAT_TYPE_STFL, 14, "Nonquiescing key-setting 
facility"),
+    FEAT_INIT("apsc", S390_FEAT_TYPE_STFL, 15, "Adjunct Processor Special 
Command facility"),
     FEAT_INIT("etf2", S390_FEAT_TYPE_STFL, 16, "Extended-translation facility 
2"),
     FEAT_INIT("msa-base", S390_FEAT_TYPE_STFL, 17, "Message-security-assist 
facility (excluding subfunctions)"),
     FEAT_INIT("ldisp", S390_FEAT_TYPE_STFL, 18, "Long-displacement facility"),
diff --git a/target/s390x/cpu_features_def.h b/target/s390x/cpu_features_def.h
index 4b6d4e9..4e2589f 100644
--- a/target/s390x/cpu_features_def.h
+++ b/target/s390x/cpu_features_def.h
@@ -27,8 +27,10 @@ typedef enum {
     S390_FEAT_SENSE_RUNNING_STATUS,
     S390_FEAT_CONDITIONAL_SSKE,
     S390_FEAT_CONFIGURATION_TOPOLOGY,
+    S390_FEAT_AP_QUERY_CONFIG_INFO,
     S390_FEAT_IPTE_RANGE,
     S390_FEAT_NONQ_KEY_SETTING,
+    S390_FEAT_AP_SPECIAL_CMD,
     S390_FEAT_EXTENDED_TRANSLATION_2,
     S390_FEAT_MSA,
     S390_FEAT_LONG_DISPLACEMENT,
diff --git a/target/s390x/gen-features.c b/target/s390x/gen-features.c
index 68e6c31..42914cf 100644
--- a/target/s390x/gen-features.c
+++ b/target/s390x/gen-features.c
@@ -425,6 +425,10 @@ static uint16_t full_GEN11_GA1[] = {
     S390_FEAT_IPTE_RANGE,
     S390_FEAT_ACCESS_EXCEPTION_FS_INDICATION,
     S390_FEAT_GROUP_MSA_EXT_4,
+    S390_FEAT_AP_QUERY_CONFIG_INFO,
+    S390_FEAT_AP_SPECIAL_CMD,
+    /* FIXME when GISA support is available
+    S390_FEAT_AP_QUEUE_INTERRUPT_CONTROL,*/
 };
 
 #define full_GEN11_GA2 EmptyFeat
-- 
1.7.1