Crate ap_start

source ·
Expand description

Routines for booting up secondary CPU cores, aka application processors (APs) on x86_64.

Statics

  • AP_READY_FLAG
    An atomic flag used for synchronizing progress between the BSP and the AP that is currently being booted. False means the AP hasn’t started or hasn’t yet finished booting.

Functions

  • insert_ap_stack
    Insert a new stack that was allocated for the AP with the given cpu_id.
  • kstart_ap
    Entry to rust for an AP. The arguments must match the invocation order in “ap_boot.asm”
  • take_ap_stack
    Remove the stack that was allocated for the AP with the given cpu_id.