Struct x86_64::irq::IdtEntry

#[repr(C, packed)]
pub struct IdtEntry {
    pub pointer_low: u16,
    pub selector: SegmentSelector,
    pub options: IdtEntryOptions,
    pub pointer_middle: u16,
    pub pointer_high: u32,
    // some fields omitted
}

An Interrupt Descriptor Table entry.

See AMD64 Vol 2, Section 4.8.4 for details.

Fields

pointer_low: u16

Lower 16 bits of ISR pointer.

selector: SegmentSelector

Segment selector.

options: IdtEntryOptions

pointer_middle: u16

Bits 16-31 of ISR pointer.

pointer_high: u32

Bits 32-63 of ISR pointer.

Methods

impl IdtEntry

fn missing() -> IdtEntry

A "missing" IdtEntry.

If the CPU tries to invoke a missing interrupt, it will instead send a Segment-Not-Present Exception (11), with the segment descriptor as error code.

fn new(handler: VirtualAddress) -> IdtEntry

Create a new IdtEntry pointing at handler, which must be a function with interrupt calling conventions. (This must be currently defined in assembly language.) The gdt_code_selector value must be the offset of code segment entry in the GDT.

This function sets the "Present" flag, which is the most common case. It also sets the GDT selector to the currently active code segment. All defaults can be overwritten through the provided methods.

Trait Implementations

impl Debug for IdtEntry

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Clone for IdtEntry

fn clone(&self) -> IdtEntry

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for IdtEntry