Multiple Processor Group test failed inside xen vm

Question

I am running HCK tests inside a xen vm, but Multiple Processor Group test failed. Maybe because xen hypervisor does not support multi processor group.
I wrote this reason inside a readme.docx and packed it as supplemental folder. But it is still rejected by manual review of WHQL. It tell me to provide a errata ID or
a waiver ID. How can I get any of them? What a formal readme.docx looks like, is there any example?

Error log:

Start Test 7/20/2021 4:01:58.921 AM Verify the system is configured into multiple active processor groups
Error 7/20/2021 4:01:58.921 AM ValidateMultipleGroupsExist - Failure: Expected more than one active processor group, but found only one.
File: testsrc\basetest\topology\groupsize\groupsize.cpp Line: 102
Error Type: HRESULT
Error Code: 0x0
Error Text: The operation completed successfully.
End Test 7/20/2021 4:01:58.921 AM Verify the system is configured into multiple active processor groups
Result: Fail
Repro: groupsize.exe -ValidateMultipleGroupsExist
End Test 7/20/2021 4:01:58.921 AM Running groupsize.exe
Result: Fail
Repro: groupsize.exe -ValidateMultipleGroupsExist