On Sep 7, 2014, at 7:28 PM, Kengo NAKAHARA <[email protected]> wrote:
> I have a question about kcpuset. Referring "man 9 kcpuset", the APIs > need cpuid (the type is cpuid_t) to identify CPU. However, the callers > such as idle_loop() sys/kern/kern_idle.c use cpu index (the type is u_int). > > cpu index means return value of cpu_index(), and cpu index is sequential > number. On the other hand, cpuid means struct cpu_info.ci_cpuid and cpuid > is non-sequential number at least x86 and sparc architectures. So, cpu index > is different from cpuid. Which should kcpuset use cpuid or cpu index? ci_cpuid is MD and has no standard semantics. Use cpu_index(ci) (curcpu()->ci_index)
