shutdown.c

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/*
WKern - A Bare Metal OS / Kernel I am maKing (For Fun)
Copyright (C) 2025  Wdboyes13
 
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.
*/
 
#include <err/kerror.h>
#include <io/kio.h>
#include <utils/util.h>
__attribute__((noreturn)) void QemuShutdown() {
    Kprintf("\nShutting Down...\n");
    ZZZ(20);
    Outw(0x604, 0x2000);  // Magic value to ACPI shutdown in QEMU
    Outw(0xB004, 0x2000); // BacKup for older versions
    TripleFault();
    __builtin_unreachable();
}