Thank you for contacting us about this concern.
Usually, Xeon D processor design companies are directly supported by FAEs (Field Application Engineer) and they can use Intel(R) Premier Support (IPS) to submit issues. To get an IPS account setup and activated. In order to set up and activate it please contact your FAE in order to proceed with this process.
On the other hand, if you do not have a Field Application Engineer or you do not have access to IPS; I would like to refer you to the following Embedded Community for technical help: (https://forums.intel.com/s/topic/0TO0P00000018NIWAY/embedded-products)
I hope those details will help you in order to find the most accurate information.
Intel Customer Support Technician.
Under Contract to Intel Corporation.