Hi Ray, Sai,

Could you take a look on this patch?

Pasting below questions and answers from previous patch for a reference.

What's the difference between SOC and CPU?
SOC die differs from typical CPU die in Intel's chiplet design.
 
What the purpose of "DieIndex"?
We want to have an indication to which exactly die given protocol instance is 
referring to (in example in multi socket/multi PCH designs).
 
Have you considered to use data fields such as "CONST CHAR8 * DieName, 
Stepping, Sku" instead of the methods?
Yes, but there might be a configuration where chipset id is going to be changed 
during the boot. By using methods, we ensure that returned value is correct in 
every call.

Can you add some details on how a producer of this interface would know the 
values to be assigned here? Does this contain any sort of encoding of 
generation and Die specific ID in a single UINT64?
Yes, in order to have a generic field regardless of the die type and 
per-generation changes it will be packed into a single UINT64. Protocol will be 
installed by silicon code, and consumer will need to be aware of the encoding 
and decode it. Same applies for stepping id.
 
Any reason the die specific GUIDs are not declared in the .dec file?
I can't see any problems with that, they will be added in v2 changes.
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