Struct Entry 

#[repr(C)]
pub struct Entry<F> {
    pointer_low: u16,
    options: EntryOptions,
    pointer_middle: u16,
    pointer_high: u32,
    reserved: u32,
    phantom: PhantomData<F>,
}

An Interrupt Descriptor Table entry.

The generic parameter is some HandlerFuncType, depending on the interrupt vector.

Fields

pointer_low: u16

options: EntryOptions

pointer_middle: u16

pointer_high: u32

reserved: u32

phantom: PhantomData<F>

Implementations

impl<F> Entry<F>

pub const fn missing() -> Entry<F>

Creates a non-present IDT entry (but sets the must-be-one bits).

pub unsafe fn set_handler_addr(&mut self, addr: VirtAddr) -> &mut EntryOptions

Sets the handler address for the IDT entry and sets the following defaults:

• The code selector is the code segment currently active in the CPU
• The present bit is set
• Interrupts are disabled on handler invocation
• The privilege level (DPL) is PrivilegeLevel::Ring0
• No IST is configured (existing stack will be used)

The function returns a mutable reference to the entry’s options that allows further customization.

Safety

The caller must ensure that addr is the address of a valid interrupt handler function, and the signature of such a function is correct for the entry type.

pub fn handler_addr(&self) -> VirtAddr

Returns the virtual address of this IDT entry’s handler function.

impl<F> Entry<F>

where F: HandlerFuncType,

pub fn set_handler_fn(&mut self, handler: F) -> &mut EntryOptions

Sets the handler function for the IDT entry and sets the following defaults:

• The code selector is the code segment currently active in the CPU
• The present bit is set
• Interrupts are disabled on handler invocation
• The privilege level (DPL) is PrivilegeLevel::Ring0
• No IST is configured (existing stack will be used)

The function returns a mutable reference to the entry’s options that allows further customization.

This method is only usable with the abi_x86_interrupt feature enabled. Without it, the unsafe Entry::set_handler_addr method has to be used instead.

Trait Implementations

impl<F> Clone for Entry<F>

where F: Clone,

fn clone(&self) -> Entry<F>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<F> Copy for Entry<F>

where F: Copy,

impl<T> Debug for Entry<T>

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

Formats the value using the given formatter.

impl<T> PartialEq for Entry<T>

fn eq(&self, other: &Entry<T>) -> bool

Equality operator ==.

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

Inequality operator !=.