EtwpCreateActivityId

VOID __stdcall EtwpCreateActivityId(_GUID *ActivityId){
  volatile signed __int64 *EtwSupport; 

  EtwSupport = (volatile signed __int64 *)KeGetCurrentPrcb()->EtwSupport;
  *(_QWORD *)ActivityId->Data4 = _InterlockedIncrement64(EtwSupport + 1);
  *(_QWORD *)&ActivityId->Data1 = *EtwSupport;
}

Referenced by:

NtTraceControl