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https://github.com/RGBCube/serenity
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9132596b8e
This will somwhat help unify them also under the same SysFS directory in the commit. Also, it feels much more like this change reflects the reality that both ACPI and the BIOS are part of the firmware on x86 computers.
61 lines
1.6 KiB
C++
61 lines
1.6 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <Kernel/FileSystem/FileSystem.h>
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#include <Kernel/Firmware/ACPI/Parser.h>
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#include <Kernel/IO.h>
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#include <Kernel/Process.h>
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#include <Kernel/TTY/ConsoleManagement.h>
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namespace Kernel {
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KResultOr<FlatPtr> Process::sys$reboot()
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
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if (!is_superuser())
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return EPERM;
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REQUIRE_NO_PROMISES;
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dbgln("acquiring FS locks...");
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FileSystem::lock_all();
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dbgln("syncing mounted filesystems...");
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FileSystem::sync();
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dbgln("attempting reboot via ACPI");
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if (ACPI::is_enabled())
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ACPI::Parser::the()->try_acpi_reboot();
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dbgln("attempting reboot via KB Controller...");
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IO::out8(0x64, 0xFE);
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return 0;
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}
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KResultOr<FlatPtr> Process::sys$halt()
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{
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VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
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if (!is_superuser())
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return EPERM;
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REQUIRE_NO_PROMISES;
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ConsoleManagement::the().switch_to_debug();
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dbgln("acquiring FS locks...");
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FileSystem::lock_all();
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dbgln("syncing mounted filesystems...");
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FileSystem::sync();
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dbgln("attempting system shutdown...");
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// QEMU Shutdown
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IO::out16(0x604, 0x2000);
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// If we're here, the shutdown failed. Try VirtualBox shutdown.
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IO::out16(0x4004, 0x3400);
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// VirtualBox shutdown failed. Try Bochs/Old QEMU shutdown.
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IO::out16(0xb004, 0x2000);
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dbgln("shutdown attempts failed, applications will stop responding.");
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dmesgln("Shutdown can't be completed. It's safe to turn off the computer!");
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Processor::halt();
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}
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}
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