Struct x86_64::registers::segmentation::SegmentSelector

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

pub const fn new(index: u16, rpl: PrivilegeLevel) -> SegmentSelector

Creates a new SegmentSelector

Arguments

• index: index in GDT or LDT array (not the offset)
• rpl: the requested privilege level

pub const NULL: Self = _

Can be used as a selector into a non-existent segment and assigned to segment registers, e.g. data segment register in ring 0

pub fn index(self) -> u16

Returns the GDT index.

pub fn rpl(self) -> PrivilegeLevel

Returns the requested privilege level.

pub fn set_rpl(&mut self, rpl: PrivilegeLevel)

Set the privilege level for this Segment selector.

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 Hash for SegmentSelector

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given [Hasher].

impl Ord for SegmentSelector

fn cmp(&self, other: &SegmentSelector) -> Ordering

This method returns an [Ordering] between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized + PartialOrd,

Restrict a value to a certain interval.

impl PartialEq for SegmentSelector

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl PartialOrd for SegmentSelector

fn partial_cmp(&self, other: &SegmentSelector) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

This method tests less than (for self and other) and is used by the < operator.

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

This method tests less than or equal to (for self and other) and is used by the <= operator.

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

This method tests greater than (for self and other) and is used by the > operator.

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

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for SegmentSelector

impl Eq for SegmentSelector

impl StructuralEq for SegmentSelector

impl StructuralPartialEq for SegmentSelector