Hi all, This is a request for comment / review on a white paper, intended to provide an example lead guide on how to describe NUMA systems in ACPI 6.3. https://github.com/hisilicon/acpi-numa-whitepaper https://github.com/hisilicon/acpi-numa-whitepaper/releases/download/v0.93/NUMA_Description_Under_ACPI_6.3_v0.93.pdf It was prepared in conjunction with the Heterogeneous Memory Sub Team (HMST) of the UEFI forum which has a mix of firmware and OS people (Linux and others). The original motivation for this was that we were writing some docs for a more specific project (to appear shortly) and realized that only reason some sections were necessary was because we couldn't find anything bridging the gap between the ACPI specification and docs like those in the kernel tree. Hence this document targeting that hole which is hopefully of more general use. Exactly how this will be officially 'released' is yet to be resolved, but however that happens we will be maintaining a public source repository, hopefully allowing this to be a living document, tracking future specs and also being updated to account for how OS usage of the provided information changes. The document is under Creative Commons Attribution 4.0 International License. It is a Sphinx document. Only output to pdf has been tested and the build scripts are a bit of a mess. Thanks to all those who have already given feedback on earlier drafts! Additional thanks to the members of HMST for some very interesting discussions, clarifying both my understanding and highlighting areas to focus on in this guide. I'm looking for all types of feedback including suggestions for missing content (as a patch is ideal of course - I'm more than happy to have some coauthors on this). Jonathan p.s. Please share with anyone you think may be interested!