Struct SegmentSelector

#[repr(transparent)]
pub struct SegmentSelector(u16);

Specifies which element to load into a segment from descriptor tables (i.e., is a index to LDT or GDT table with some additional flags).

See Intel 3a, Section 3.4.2 “Segment Selectors”

Tuple Fields

0: u16

Implementations

impl SegmentSelector

const PRIVILEGE_BITS: usize = 2usize

const PRIVILEGE_OFFSET: usize = 0usize

const LOCAL_BITS: usize = 1usize

const LOCAL_OFFSET: usize = 2usize

const INDEX_BITS: usize = 13usize

const INDEX_OFFSET: usize = 3usize

pub const fn new() -> Self

Creates a new default initialized bitfield.

pub const fn from_bits(bits: u16) -> Self

Convert from bits.

pub const fn into_bits(self) -> u16

Convert into bits.

pub const fn privilege(&self) -> Ring

Requested privilege level

Bits: 0..2

pub const fn with_privilege_checked(self, value: Ring) -> Result<Self, ()>

Requested privilege level

Bits: 0..2

pub const fn with_privilege(self, value: Ring) -> Self

Requested privilege level

Bits: 0..2

pub fn set_privilege(&mut self, value: Ring)

Requested privilege level

Bits: 0..2

pub fn set_privilege_checked(&mut self, value: Ring) -> Result<(), ()>

Requested privilege level

Bits: 0..2

pub const fn local(&self) -> bool

Whether this selector corresponds to a global or local descriptor table

Bits: 2..3

pub const fn with_local_checked(self, value: bool) -> Result<Self, ()>

Whether this selector corresponds to a global or local descriptor table

Bits: 2..3

pub const fn with_local(self, value: bool) -> Self

Whether this selector corresponds to a global or local descriptor table

Bits: 2..3

pub fn set_local(&mut self, value: bool)

Whether this selector corresponds to a global or local descriptor table

Bits: 2..3

pub fn set_local_checked(&mut self, value: bool) -> Result<(), ()>

Whether this selector corresponds to a global or local descriptor table

Bits: 2..3

pub const fn index(&self) -> u16

Index within the descriptor table

Bits: 3..16

pub const fn with_index_checked(self, value: u16) -> Result<Self, ()>

Index within the descriptor table

Bits: 3..16

pub const fn with_index(self, value: u16) -> Self

Index within the descriptor table

Bits: 3..16

pub fn set_index(&mut self, value: u16)

Index within the descriptor table

Bits: 3..16

pub fn set_index_checked(&mut self, value: u16) -> Result<(), ()>

Index within the descriptor table

Bits: 3..16

Trait Implementations

impl Clone for SegmentSelector

fn clone(&self) -> SegmentSelector

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SegmentSelector

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for SegmentSelector

fn default() -> Self

Returns the “default value” for a type.

impl From<SegmentSelector> for u16

fn from(v: SegmentSelector) -> u16

Converts to this type from the input type.

impl From<u16> for SegmentSelector

fn from(v: u16) -> Self

Converts to this type from the input type.

impl PartialEq for SegmentSelector

fn eq(&self, other: &SegmentSelector) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for SegmentSelector

impl Eq for SegmentSelector

impl StructuralPartialEq for SegmentSelector