Hi Laurent, Thanks for your help. But I'm still not sure how it is implemented. I'll continue to do some research on the issue, and post my answer if I can. Thanks Larry ------------------ Original ------------------ From: "Laurent Navet"<laurent.navet@gmail.com>; Date: Sat, Mar 10, 2018 09:45 PM To: "落痕"<losemyheaven@foxmail.com>; Cc: "kernelnewbies"<kernelnewbies@kernelnewbies.org>; Subject: Re: Where is the __per_cpu_offset array initialized?? Hi Larry,
Does anyone can tell me where the array __per_cpu_offset is initialized on x86_64 arch, I remembered it was initialized in function setup_per_cpu_areas, but it seems that it is not the case on x86-64 arch.
It seems your memory is right and code is shared with x86. https://elixir.bootlin.com/linux/latest/source/arch/x86/kernel/setup_percpu.... Laurent. -- « On ne résout pas un problème avec les modes de pensée qui l’ont engendré. » « You cannot solve a problem with the same thinking that created it. »