Hi all! Recently , I am trying kexec smp feature support for ppc64, and mips64 . I found that , ppc64 makes the secondary cpus to spin in a loop ,while in mips64 , the seconday cpus wait until the main cpu jumped to kernel entry , and then they(secondary cpus) jumped to kernel entry too . So I 've got some questions on the entry point for cpus. It seemed that , in kernel code , seconday cpus were brought up by main cpu in a 'init' process . After initializing , the main cpu send ipi to all secondary cpus ,waked them up , and then , secondary cpus jump to a different 'secondary ' entry point. But patches show that ,all cpus will jumped to the same entry ,so I 'm not sure about this , if all cpus would have the simillar boot process or not. Any suggestion? Thank you regards, wilbur
