func: static int kvm_put_xcrs(CPUState *env)
  
  {
  
  #ifdef KVM_CAP_XCRS
  
      struct kvm_xcrs xcrs;
  
  
  
      if (!kvm_has_xcrs())
  
          return 0;
  
  
  
      xcrs.nr_xcrs = 1;
  
      xcrs.flags = 0;
  
      xcrs.xcrs[0].xcr = 0;
  
      xcrs.xcrs[0].value = env->xcr0;
  
      return kvm_vcpu_ioctl(env, KVM_SET_XCRS, &xcrs);
  
  #else
  
      return 0;
  
  #endif
  
  }
  