Daniel Hammer
41 lines
962 B
C++
41 lines
962 B
C++
/*
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* gdt.hpp
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* Intel Global Descriptor Table
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* Copyright (c) 2025 Daniel Hammer
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*/
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#pragma once
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#include <cstdint>
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using namespace std;
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namespace Hal {
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class GDTEntry {
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public:
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uint16_t LimitLow;
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uint16_t BaseLow;
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uint8_t BaseMiddle;
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uint8_t AccessByte;
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uint8_t GranularityByte;
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uint8_t BaseHigh;
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}__attribute__((packed));
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struct BasicGDT {
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GDTEntry Null;
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GDTEntry KernelCode;
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GDTEntry KernelData;
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GDTEntry UserCode;
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GDTEntry UserData;
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// Task State Segment
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GDTEntry TSS;
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}__attribute__((packed));
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struct GDTPointer {
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uint16_t Size;
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uint64_t GDTAddress;
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}__attribute__((packed));
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void BridgeLoadGDT();
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void PrepareGDT();
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}; |