Describes the structure of segment descriptors. More...

#include <machine/gdt.h>

Classes
struct	[struct].__unnamed0__
struct	[struct].__unnamed1__
	Fields specific for Code Segment (for debugging purposes). More...
struct	[struct].__unnamed2__
	Fields specific for Data Segment (for debugging purposes). More...

Public Member Functions
constexpr	SegmentDescriptor (uint64_t val=0)
	!< Merged value; useful for debugging
constexpr	SegmentDescriptor (uintptr_t base, uint32_t limit, bool code, int ring, Size size)
	Constructor for a code/data GDT entry.

Public Attributes
struct
struct
struct
uint64_t	value

Detailed Description

Describes the structure of segment descriptors.

A data structure that contains size, position, access rights, and purpose of any segment. Segment descriptors are used in both the GDT, as well as in LDTs.

See also: ISDMv3, 3.4.5; Segment Descriptors; AAPMv2, 4.7 Legacy Segment Descriptors; AAPMv2, 4.8 Long-Mode Segment Descriptors

Constructor & Destructor Documentation

◆ SegmentDescriptor() [1/2]

GDT::SegmentDescriptor::SegmentDescriptor ( uint64_t val = 0 )

inlineconstexpr

!< Merged value; useful for debugging

Constructor for a specific value

◆ SegmentDescriptor() [2/2]

GDT::SegmentDescriptor::SegmentDescriptor	(	uintptr_t	base,
		uint32_t	limit,
		bool	code,
		int	ring,
		Size	size )

inlineconstexpr

Constructor for a code/data GDT entry.

Parameters

base	Base Address of segment
limit	Size of segment
code	Code or data segment
ring	Privilege level
size	Address width

Member Data Documentation

◆ @235144354357331311101174347207266266237125201026

struct GDT::SegmentDescriptor::[struct].__unnamed0__ GDT::SegmentDescriptor

◆ @251030100133354226360331371126042111002362234170

struct GDT::SegmentDescriptor::[struct].__unnamed1__ GDT::SegmentDescriptor

◆ @277213316173245037203105114100167150025111362063

struct GDT::SegmentDescriptor::[struct].__unnamed2__ GDT::SegmentDescriptor

◆ value

uint64_t GDT::SegmentDescriptor::value

The documentation for this union was generated from the following file:

machine/gdt.h

Classes

Public Member Functions

Public Attributes