[PATCH v5 3/9] target/s390x: add zpci-interp to cpu models

From: Matthew Rosato <mjrosato@linux.ibm.com>
To: qemu-s390x@nongnu.org
Cc: farman@linux.ibm.com, kvm@vger.kernel.org, pmorel@linux.ibm.com,
	schnelle@linux.ibm.com, cohuck@redhat.com,
	richard.henderson@linaro.org, thuth@redhat.com,
	qemu-devel@nongnu.org, pasic@linux.ibm.com,
	alex.williamson@redhat.com, mst@redhat.com, pbonzini@redhat.com,
	david@redhat.com, borntraeger@linux.ibm.com
Subject: [PATCH v5 3/9] target/s390x: add zpci-interp to cpu models
Date: Mon,  4 Apr 2022 14:17:20 -0400	[thread overview]
Message-ID: <20220404181726.60291-4-mjrosato@linux.ibm.com> (raw)
In-Reply-To: <20220404181726.60291-1-mjrosato@linux.ibm.com>

The zpci-interp feature is used to specify whether zPCI interpretation is
to be used for this guest.

Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
---
 hw/s390x/s390-virtio-ccw.c          | 1 +
 target/s390x/cpu_features_def.h.inc | 1 +
 target/s390x/gen-features.c         | 2 ++
 target/s390x/kvm/kvm.c              | 1 +
 4 files changed, 5 insertions(+)

diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 90480e7cf9..b190234308 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -805,6 +805,7 @@ static void ccw_machine_6_2_instance_options(MachineState *machine)
     static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_2 };
 
     ccw_machine_7_0_instance_options(machine);
+    s390_cpudef_featoff_greater(14, 1, S390_FEAT_ZPCI_INTERP);
     s390_set_qemu_cpu_model(0x3906, 14, 2, qemu_cpu_feat);
 }
 
diff --git a/target/s390x/cpu_features_def.h.inc b/target/s390x/cpu_features_def.h.inc
index e86662bb3b..4ade3182aa 100644
--- a/target/s390x/cpu_features_def.h.inc
+++ b/target/s390x/cpu_features_def.h.inc
@@ -146,6 +146,7 @@ DEF_FEAT(SIE_CEI, "cei", SCLP_CPU, 43, "SIE: Conditional-external-interception f
 DEF_FEAT(DAT_ENH_2, "dateh2", MISC, 0, "DAT-enhancement facility 2")
 DEF_FEAT(CMM, "cmm", MISC, 0, "Collaborative-memory-management facility")
 DEF_FEAT(AP, "ap", MISC, 0, "AP instructions installed")
+DEF_FEAT(ZPCI_INTERP, "zpci-interp", MISC, 0, "zPCI interpretation")
 
 /* Features exposed via the PLO instruction. */
 DEF_FEAT(PLO_CL, "plo-cl", PLO, 0, "PLO Compare and load (32 bit in general registers)")
diff --git a/target/s390x/gen-features.c b/target/s390x/gen-features.c
index 22846121c4..9db6bd545e 100644
--- a/target/s390x/gen-features.c
+++ b/target/s390x/gen-features.c
@@ -554,6 +554,7 @@ static uint16_t full_GEN14_GA1[] = {
     S390_FEAT_HPMA2,
     S390_FEAT_SIE_KSS,
     S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF,
+    S390_FEAT_ZPCI_INTERP,
 };
 
 #define full_GEN14_GA2 EmptyFeat
@@ -650,6 +651,7 @@ static uint16_t default_GEN14_GA1[] = {
     S390_FEAT_GROUP_MSA_EXT_8,
     S390_FEAT_MULTIPLE_EPOCH,
     S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF,
+    S390_FEAT_ZPCI_INTERP,
 };
 
 #define default_GEN14_GA2 EmptyFeat
diff --git a/target/s390x/kvm/kvm.c b/target/s390x/kvm/kvm.c
index 6acf14d5ec..0357bfda89 100644
--- a/target/s390x/kvm/kvm.c
+++ b/target/s390x/kvm/kvm.c
@@ -2294,6 +2294,7 @@ static int kvm_to_feat[][2] = {
     { KVM_S390_VM_CPU_FEAT_PFMFI, S390_FEAT_SIE_PFMFI},
     { KVM_S390_VM_CPU_FEAT_SIGPIF, S390_FEAT_SIE_SIGPIF},
     { KVM_S390_VM_CPU_FEAT_KSS, S390_FEAT_SIE_KSS},
+    { KVM_S390_VM_CPU_FEAT_ZPCI_INTERP, S390_FEAT_ZPCI_INTERP },
 };
 
 static int query_cpu_feat(S390FeatBitmap features)
-- 
2.27.0


