Cargo Features

per-CPU has no features set by default.

[dependencies]
percpu = { version = "0.1.4", features = ["sp-naive", "preempt", "arm-el2"] }
sp-naive

For single CPU use, just make the per-CPU data a global variable.

Enables sp-naive of percpu_macros

preempt

Whether the system enables preemption.

Enables kernel_guard, preempt of percpu_macros

arm-el2

ARM specific, whether to run at the EL2 privilege level.

Enables arm-el2 of percpu_macros