KVM: selftests: Guard struct kvm_vcpu_events with __KVM_HAVE_VCPU_EVENTS

The struct kvm_vcpu_events code is only available on certain architectures
(arm, arm64 and x86). To be able to compile kvm_util.c also for other
architectures, we have to fence the code with __KVM_HAVE_VCPU_EVENTS.
Reviewed-by: NDavid Hildenbrand <david@redhat.com>
Reviewed-by: NAndrew Jones <drjones@redhat.com>
Signed-off-by: NThomas Huth <thuth@redhat.com>
Message-Id: <20190523164309.13345-3-thuth@redhat.com>
Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>

tools/testing/selftests/kvm/include/kvm_util.h

@@ -114,10 +114,12 @@ void vcpu_sregs_set(struct kvm_vm *vm, uint32_t vcpuid,
 		    struct kvm_sregs *sregs);
 int _vcpu_sregs_set(struct kvm_vm *vm, uint32_t vcpuid,
 		    struct kvm_sregs *sregs);
+#ifdef __KVM_HAVE_VCPU_EVENTS
 void vcpu_events_get(struct kvm_vm *vm, uint32_t vcpuid,
 		     struct kvm_vcpu_events *events);
 void vcpu_events_set(struct kvm_vm *vm, uint32_t vcpuid,
 		     struct kvm_vcpu_events *events);
+#endif
 #ifdef __x86_64__
 void vcpu_nested_state_get(struct kvm_vm *vm, uint32_t vcpuid,
 			   struct kvm_nested_state *state);

tools/testing/selftests/kvm/lib/kvm_util.c

@@ -1222,6 +1222,7 @@ void vcpu_regs_set(struct kvm_vm *vm, uint32_t vcpuid, struct kvm_regs *regs)
 		ret, errno);
 }
 
+#ifdef __KVM_HAVE_VCPU_EVENTS
 void vcpu_events_get(struct kvm_vm *vm, uint32_t vcpuid,
 		     struct kvm_vcpu_events *events)
 {
@@ -1247,6 +1248,7 @@ void vcpu_events_set(struct kvm_vm *vm, uint32_t vcpuid,
 	TEST_ASSERT(ret == 0, "KVM_SET_VCPU_EVENTS, failed, rc: %i errno: %i",
 		ret, errno);
 }
+#endif
 
 #ifdef __x86_64__
 void vcpu_nested_state_get(struct kvm_vm *vm, uint32_t vcpuid,