1 files changed, 116 insertions, 0 deletions
diff --git a/Kernel/Boot/CommandLine.h b/Kernel/Boot/CommandLine.h
new file mode 100644
index 0000000000..98395eab2e
--- /dev/null
+++ b/Kernel/Boot/CommandLine.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/HashMap.h>
+#include <AK/Optional.h>
+#include <AK/Vector.h>
+#include <Kernel/Library/KString.h>
+
+namespace Kernel {
+
+enum class PanicMode {
+    Halt,
+    Shutdown,
+};
+
+enum class HPETMode {
+    Periodic,
+    NonPeriodic
+};
+
+enum class I8042PresenceMode {
+    Automatic,
+    AggressiveTest,
+    Force,
+    None,
+};
+
+enum class AcpiFeatureLevel {
+    Enabled,
+    Limited,
+    Disabled,
+};
+
+enum class PCIAccessLevel {
+    None,
+#if ARCH(X86_64)
+    IOAddressing,
+#endif
+    MemoryAddressing,
+};
+
+enum class AHCIResetMode {
+    ControllerOnly,
+    Aggressive,
+};
+
+class CommandLine {
+
+public:
+    static void early_initialize(StringView cmd_line);
+    static void initialize();
+    static bool was_initialized();
+
+    enum class Validate {
+        Yes,
+        No,
+    };
+
+    enum class GraphicsSubsystemMode {
+        Enabled,
+        Limited,
+        Disabled
+    };
+
+    [[nodiscard]] StringView string() const { return m_string->view(); }
+    Optional<StringView> lookup(StringView key) const;
+    [[nodiscard]] bool contains(StringView key) const;
+
+    [[nodiscard]] bool is_boot_profiling_enabled() const;
+    [[nodiscard]] bool is_ide_enabled() const;
+    [[nodiscard]] bool is_ioapic_enabled() const;
+    [[nodiscard]] bool is_smp_enabled_without_ioapic_enabled() const;
+    [[nodiscard]] bool is_smp_enabled() const;
+    [[nodiscard]] bool is_physical_networking_disabled() const;
+    [[nodiscard]] bool is_vmmouse_enabled() const;
+    [[nodiscard]] PCIAccessLevel pci_access_level() const;
+    [[nodiscard]] bool is_pci_disabled() const;
+    [[nodiscard]] bool is_legacy_time_enabled() const;
+    [[nodiscard]] bool is_pc_speaker_enabled() const;
+    [[nodiscard]] GraphicsSubsystemMode graphics_subsystem_mode() const;
+    [[nodiscard]] I8042PresenceMode i8042_presence_mode() const;
+    [[nodiscard]] bool is_force_pio() const;
+    [[nodiscard]] AcpiFeatureLevel acpi_feature_level() const;
+    [[nodiscard]] StringView system_mode() const;
+    [[nodiscard]] PanicMode panic_mode(Validate should_validate = Validate::No) const;
+    [[nodiscard]] HPETMode hpet_mode() const;
+    [[nodiscard]] bool disable_physical_storage() const;
+    [[nodiscard]] bool disable_uhci_controller() const;
+    [[nodiscard]] bool disable_usb() const;
+    [[nodiscard]] bool disable_virtio() const;
+    [[nodiscard]] bool is_early_boot_console_disabled() const;
+    [[nodiscard]] AHCIResetMode ahci_reset_mode() const;
+    [[nodiscard]] StringView userspace_init() const;
+    [[nodiscard]] Vector<NonnullOwnPtr<KString>> userspace_init_args() const;
+    [[nodiscard]] StringView root_device() const;
+    [[nodiscard]] bool is_nvme_polling_enabled() const;
+    [[nodiscard]] size_t switch_to_tty() const;
+
+private:
+    CommandLine(StringView);
+
+    void add_arguments(Vector<StringView> const& args);
+    static NonnullOwnPtr<KString> build_commandline(StringView cmdline_from_bootloader);
+
+    NonnullOwnPtr<KString> m_string;
+    HashMap<StringView, StringView> m_params;
+};
+
+CommandLine const& kernel_command_line();
+
+}