75 lines
2.7 KiB
C#
75 lines
2.7 KiB
C#
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/////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// Microsoft Research Singularity
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// Segment table definition. Currently only used for intel architectures.
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using System;
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using System.Runtime.InteropServices;
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using System.Runtime.CompilerServices;
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namespace Microsoft.Singularity.Isal.IX
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{
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[AccessedByRuntime("referenced in c++")]
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[CLSCompliant(false)]
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public struct DescriptorTable
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{
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#if ISA_IX
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[AccessedByRuntime("referenced in c++")]
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public struct Gdt
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{
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[AccessedByRuntime("referenced in c++")]
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public Gdte nul; // Null segment
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[AccessedByRuntime("referenced in c++")]
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private Gdte pv; // 16-bit video, used in boot loader only
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// 0x10
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[AccessedByRuntime("referenced in c++")]
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private Gdte rc; // 16-bit code, used to align with RM code in boot loader
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[AccessedByRuntime("referenced in c++")]
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private Gdte rd; // 16-bit data, used to align with RM data in boot loader
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// 0x20
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[AccessedByRuntime("referenced in c++")]
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private Gdte pc; // 32-bit code
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[AccessedByRuntime("referenced in c++")]
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private Gdte pd; // 32-bit data
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// 0x30
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[AccessedByRuntime("referenced in c++")]
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private Gdte lc; // 64-bit code
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[AccessedByRuntime("referenced in c++")]
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private Gdte ld; // 64-bit data
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// 0x40
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[AccessedByRuntime("referenced in c++")]
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public Gdte uc; // User mode code - used in paging mode only
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[AccessedByRuntime("referenced in c++")]
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public Gdte ud; // User mode data - used in paging mode only
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// 0x50
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[AccessedByRuntime("referenced in c++")]
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public Gdte pp; // Kernel mode per-processor data
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[AccessedByRuntime("referenced in c++")]
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public Gdte nn; // Unused
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// 0x60
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#if ISA_IX86
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[AccessedByRuntime("referenced in c++")]
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public Gdte tss; // Currently executing task segment
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#elif ISA_IX64
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[AccessedByRuntime("referenced in c++")]
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public Gdte64 tss; // Long mode 64-bit TSS
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#endif
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}
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[AccessedByRuntime("referenced in c++")]
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public Gdt gdt;
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[AccessedByRuntime("referenced in c++")]
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public Gdtp gdtPtr;
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#endif // ISA_IX
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}
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};
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