1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36

/* Copyright (c) [2023] [Syswonder Community]
 *   [Rukos] is licensed under Mulan PSL v2.
 *   You can use this software according to the terms and conditions of the Mulan PSL v2.
 *   You may obtain a copy of Mulan PSL v2 at:
 *               http://license.coscl.org.cn/MulanPSL2
 *   THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 *   See the Mulan PSL v2 for more details.
 */

use x86_64::instructions::port::PortWriteOnly;

/// Shutdown the whole system (in QEMU), including all CPUs.
///
/// See <https://wiki.osdev.org/Shutdown> for more information.
pub fn terminate() -> ! {
    info!("Shutting down...");

    #[cfg(platform = "x86_64-pc-oslab")]
    {
        axlog::ax_println!("System will reboot, press any key to continue ...");
        while super::console::getchar().is_none() {}
        axlog::ax_println!("Rebooting ...");
        unsafe { PortWriteOnly::new(0x64).write(0xfeu8) };
    }

    #[cfg(platform = "x86_64-qemu-q35")]
    unsafe {
        PortWriteOnly::new(0x604).write(0x2000u16)
    };

    crate::arch::halt();
    warn!("It should shutdown!");
    loop {
        crate::arch::halt();
    }
}