mirror of
https://github.com/RGBCube/serenity
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d550b09871
All code that is related to PC BIOS should not be in the Kernel/Firmware directory as this directory is for abstracted and platform-agnostic code like ACPI (and device tree parsing in the future). This fixes a problem with the aarch64 architecure, as these machines don't have any PC-BIOS in them so actually trying to access these memory locations (EBDA, BIOS ROM) does not make any sense, as they're specific to x86 machines only.
42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
/*
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* Copyright (c) 2022, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/RefPtr.h>
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#include <AK/Types.h>
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#include <AK/Vector.h>
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#include <Kernel/FileSystem/SysFS/Subsystems/Firmware/Directory.h>
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#include <Kernel/Library/LockRefPtr.h>
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#include <Kernel/Memory/PhysicalAddress.h>
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namespace Kernel {
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class SysFSBIOSDirectory : public SysFSDirectory {
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public:
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virtual StringView name() const override { return "bios"sv; }
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static NonnullRefPtr<SysFSBIOSDirectory> must_create(SysFSFirmwareDirectory&);
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void create_components();
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private:
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explicit SysFSBIOSDirectory(SysFSFirmwareDirectory&);
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void set_dmi_64_bit_entry_initialization_values();
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void set_dmi_32_bit_entry_initialization_values();
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void initialize_dmi_exposer();
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Optional<PhysicalAddress> find_dmi_entry64bit_point();
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Optional<PhysicalAddress> find_dmi_entry32bit_point();
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PhysicalAddress m_dmi_entry_point;
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PhysicalAddress m_smbios_structure_table;
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bool m_using_64bit_dmi_entry_point { false };
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size_t m_smbios_structure_table_length { 0 };
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size_t m_dmi_entry_point_length { 0 };
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};
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}
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