s390: Switch to use confidential_guest_kvm_init()

Use unified confidential_guest_kvm_init() for consistency with
other architectures.

Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Message-Id: <20240229060038.606591-1-xiaoyao.li@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

2 files changed, 9 insertions, 15 deletions

diff --git a/target/s390x/kvm/pv.c b/target/s390x/kvm/pv.c
index 7ca7faec73..dde836d21a 100644
--- a/target/s390x/kvm/pv.c
+++ b/target/s390x/kvm/pv.c
@@ -334,12 +334,17 @@ static bool s390_pv_guest_check(ConfidentialGuestSupport *cgs, Error **errp)
     return s390_pv_check_cpus(errp);
 }
 
-int s390_pv_kvm_init(ConfidentialGuestSupport *cgs, Error **errp)
+static int s390_pv_kvm_init(ConfidentialGuestSupport *cgs, Error **errp)
 {
     if (!object_dynamic_cast(OBJECT(cgs), TYPE_S390_PV_GUEST)) {
         return 0;
     }
 
+    if (!kvm_enabled()) {
+        error_setg(errp, "Protected Virtualization requires KVM");
+        return -1;
+    }
+
     if (!s390_has_feat(S390_FEAT_UNPACK)) {
         error_setg(errp,
                    "CPU model does not support Protected Virtualization");
@@ -364,6 +369,9 @@ OBJECT_DEFINE_TYPE_WITH_INTERFACES(S390PVGuest,
 
 static void s390_pv_guest_class_init(ObjectClass *oc, void *data)
 {
+    ConfidentialGuestSupportClass *klass = CONFIDENTIAL_GUEST_SUPPORT_CLASS(oc);
+
+    klass->kvm_init = s390_pv_kvm_init;
 }
 
 static void s390_pv_guest_init(Object *obj)
diff --git a/target/s390x/kvm/pv.h b/target/s390x/kvm/pv.h
index 5877d28ff1..4b40817439 100644
--- a/target/s390x/kvm/pv.h
+++ b/target/s390x/kvm/pv.h
@@ -80,18 +80,4 @@ static inline int kvm_s390_dump_mem_state(uint64_t addr, size_t len,
 static inline int kvm_s390_dump_completion_data(void *buff) { return 0; }
 #endif /* CONFIG_KVM */
 
-int s390_pv_kvm_init(ConfidentialGuestSupport *cgs, Error **errp);
-static inline int s390_pv_init(ConfidentialGuestSupport *cgs, Error **errp)
-{
-    if (!cgs) {
-        return 0;
-    }
-    if (kvm_enabled()) {
-        return s390_pv_kvm_init(cgs, errp);
-    }
-
-    error_setg(errp, "Protected Virtualization requires KVM");
-    return -1;
-}
-
 #endif /* HW_S390_PV_H */