1 use core::arch::asm;
2 
3 use super::asm::current::current_pcb;
4 
5 /// @brief 获取当前cpu的apic id
6 #[inline]
current_cpu_id() -> u327 pub fn current_cpu_id() -> u32 {
8     // TODO: apic重构后，使用apic id来设置这里
9     current_pcb().cpu_id as u32
10 }
11 
12 /// @brief 通过pause指令，让cpu休息一会儿。降低空转功耗
cpu_relax()13 pub fn cpu_relax() {
14     unsafe {
15         asm!("pause");
16     }
17 }
18