The PAT is available on Pentium III and newer CPUs, and on non-Intel CPUs.
"Intel 64 and IA-32 Architectures Software Developer's Manual Volume 3A: System Programming Guide, Part 1" (PDF). Intel. Retrieved 2017-05-30. http://www.intel.com/content/dam/www/public/us/en/documents/manuals/64-ia-32-architectures-software-developer-vol-3a-part-1-manual.pdf ↩
"PAT (Page Attribute Table) in Linux kernel docs". Retrieved 2020-06-02. https://www.kernel.org/doc/html/latest/x86/pat.html ↩