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.
41 lines
1.1 KiB
C++
41 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/KBuffer.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 SysFSPCBIOSComponent final : public SysFSComponent {
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public:
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enum class Type {
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DMIEntryPoint,
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SMBIOSTable,
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};
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public:
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static NonnullRefPtr<SysFSPCBIOSComponent> must_create(Type, PhysicalAddress, size_t blob_size);
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virtual StringView name() const override;
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virtual ErrorOr<size_t> read_bytes(off_t, size_t, UserOrKernelBuffer&, OpenFileDescription*) const override;
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private:
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ErrorOr<NonnullOwnPtr<KBuffer>> try_to_generate_buffer() const;
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SysFSPCBIOSComponent(Type, PhysicalAddress, size_t blob_size);
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virtual size_t size() const override { return m_blob_length; }
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PhysicalAddress const m_blob_paddr;
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size_t const m_blob_length { 0 };
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Type const m_type { Type::DMIEntryPoint };
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};
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}
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