linux/arch/arm64/kernel/setup.c 85void __init smp_setup_processor_id(void) 86{ 87 u64 mpidr = read_cpuid_mpidr() &MPIDR_HWID_BITMASK; 88 set_cpu_logical_map(0, mpidr); 89 90 /* 91 * clear __my_cpu_offset on boot CPU to avoid hang caused by 92 * using percpu variable ear...