On Fri, Feb 9, 2018 at 1:09 PM, Pavel Machek <pa...@ucw.cz> wrote: > > Hardware supports PCID even on 32-bit kernels, no?
We're not adding support for it even if it were possible. No way. Christ, even if you want to run 32-bit user code, you'd better run a 64-bit kernel. Backporting the PCID bits to something that no actual real developer will ever use is crazy and unacceptable. Linus