Just to mention it here, too (I wrote more in a cousin comment), Intel's own Software Development Manuals [0] explicitly talks about all three of these things.

Just to mention it here, too (I wrote more in a cousin comment), Intel's own Software Development Manuals [0] explicitly talks about all three of these things. I don't consider these features hidden when the primary reference for programming this platform clearly documents and provides advice on them. [0] https://www.intel.com/content/www/us/en/developer/articles/technical/intel-sdm.html https://www.intel.com/content/www/us/en/developer/articles/t...