static int kvm_s390_supports_mem_limit(KVMState *s) { struct kvm_device_attr attr = { .group = KVM_S390_VM_MEM_CTRL, .attr = KVM_S390_VM_MEM_LIMIT_SIZE, }; return (kvm_vm_ioctl(s, KVM_HAS_DEVICE_ATTR, &attr) == 0); }