Struct GlobalCpuState 

#[repr(align(64))]
pub struct GlobalCpuState {
    idt: UncheckedCell<InterruptDescriptorTable>,
    user_code_selector: AtomicU16,
    user_data_selector: AtomicU16,
}

Global CPU state such as IDT and user code/data selectors

Fields

idt: UncheckedCell<InterruptDescriptorTable>

user_code_selector: AtomicU16

user_data_selector: AtomicU16

Implementations

impl GlobalCpuState

pub const fn new() -> Self

Constructor; returns a GlobalCpuState with an uninitialized IDT and zeroed selectors

pub unsafe fn init_idt(&'static self)

Initialize the IDT

Safety

The caller must guarantee the following:

• That this method has never been called before and will never be called again
• That at the time of calling this method, no references or pointers to this data exist
• While this method is being called, no other CPU is working with the given data

pub fn set_user_selectors(&self, code: u16, data: u16)

Set the user data and code selectors

pub unsafe fn idt(&self) -> &InterruptDescriptorTable

Getter for GlobalCpuState::Idt

Safety

The caller must guarantee the following:

• That this value’s init method has already been called before
• That at this method’s entire execution time, no mutable references or pointers to this data exist or will exist

pub fn user_code_selector(&self) -> u16

Getter for GlobalCpuState::user_code_selector

pub fn user_data_selector(&self) -> u16

Getter for GlobalCpuState::user_data_selector