Hello Rostyslav, I would like to remind the previous email. I still do not know which bit in D18F4x044 represents the EnableCF8ExtCfg config. On Wednesday 16 July 2025 20:13:20 Pali Rohár wrote: > On Wednesday 16 July 2025 10:03:40 Rostyslav Khudolii wrote: > > > Hello, thank you for information. > > > > > > Just I would like to know, where did you find information that the > > > EnableCF8ExtCfg register was moved to D18F4x044? It is documented in > > > some AMD specification? > > > > > > I did not find anything regarding this change. > > > > I mentioned the exact specification in my first message. It's under > > NDA, unfortunately. > > Do you know if this applies only for AMD family 17? Or also for later > fam 18, 19 and 1a? > > And for confirmation, which bit represent the EnableCF8ExtCfg in PCI > config space register D18F4x044? It is still 14th bit like in family 16h? > > > Just for explanation, in your first message you wrote: > > "register still exists but is now located at a different address (see > the "Processor Programming Reference (PPR) for AMD Family 17h", Section 2.1.8)." > > Document named "Processor Programming Reference (PPR) for AMD Family 17h > Models 01h,08h, Revision B2 Processors" with revision information > "54945 Rev 3.03 - Jun 14, 2019" is publicly available at AMD web: > > https://www.amd.com/content/dam/amd/en/documents/processor-tech-docs/programmer-references/54945-ppr-family-17h-models-00h-0fh-processors.zip > > I looked into that document into section 2.1.8 "PCI Configuration Legacy Access" > and there is not related to EnableCF8ExtCfg. > > So I was somehow confused to which section / document you are referring. > And now if I understand correctly, you have NDA documentation with the > same title as the above public one, but with the different content, right?
