Enum x86_64::structures::gdt::Descriptor

pub enum Descriptor {
    UserSegment(u64),
    SystemSegment(u64, u64),
}

A 64-bit mode segment descriptor.

Segmentation is no longer supported in 64-bit mode, so most of the descriptor contents are ignored.

Variants

UserSegment(u64)

Descriptor for a code or data segment.

Since segmentation is no longer supported in 64-bit mode, almost all of code and data descriptors is ignored. Only some flags are still used.

SystemSegment(u64, u64)

A system segment descriptor such as a LDT or TSS descriptor.

Methods

impl Descriptor

pub fn kernel_code_segment() -> Descriptor

Creates a segment descriptor for a long mode kernel code segment.

pub fn tss_segment(tss: &'static TaskStateSegment) -> Descriptor

Creates a TSS system descriptor for the given TSS.

Trait Implementations

impl Debug for Descriptor

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

Formats the value using the given formatter.

impl Clone for Descriptor

fn clone(&self) -> Descriptor

Returns a copy of the value.

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

Performs copy-assignment from source.