1 // Copyright 2022, The Android Open Source Project 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 //! pVM firmware. 16 17 #![no_main] 18 #![no_std] 19 20 mod console; 21 mod psci; 22 mod uart; 23 24 use core::panic::PanicInfo; 25 use psci::{system_off, system_reset}; 26 27 /// Entry point for pVM firmware. 28 #[no_mangle] main() -> !29pub extern "C" fn main() -> ! { 30 console::init(); 31 println!("Hello world"); 32 33 system_off(); 34 #[allow(clippy::empty_loop)] 35 loop {} 36 } 37 38 #[panic_handler] panic(info: &PanicInfo) -> !39fn panic(info: &PanicInfo) -> ! { 40 eprintln!("{}", info); 41 system_reset(); 42 loop {} 43 } 44