vmbase
For VMs running under crosvm on aarch64, the vmbase library provides a linker script and useful defaults for the build rules, along with an entry point, UART console logging and more.
#![no_main]
#![no_std]
use vmbase::{main, println};
main!(main);
pub fn main(arg0: u64, arg1: u64, arg2: u64, arg3: u64) {
println!("Hello world");
}
- The
main!
macro marks your main function, to be called from thevmbase
entry point. - The
vmbase
entry point handles console initialisation, and issues a PSCI_SYSTEM_OFF to shutdown the VM if your main function returns.