Struct kernel::executor::context::TrapContext

#[repr(C)]
pub struct TrapContext {
    user_register: [usize; 32],
    user_sstatus: Sstatus,
    user_sepc: usize,
    kernel_stack: usize,
    kernel_satp: usize,
}

The TrapContext struct is used to save and restore the context of a thread when an exception or interrupt occurs. It contains the values of all the general-purpose registers of the thread, the sstatus register, the sepc register, the address of the kernel stack, and the satp register value that refers to the kernel page table.

Fields

user_register: [usize; 32]

user_sstatus: Sstatus

user_sepc: usize

kernel_stack: usize

kernel_satp: usize

Implementations

impl TrapContext

pub fn user_status(&self) -> Sstatus

pub fn set_user_status(&mut self, user_sstatus: Sstatus)

pub fn user_sepc(&self) -> usize

pub fn set_user_sepc(&mut self, user_sepc: usize)

pub fn user_register(&self, index: usize) -> usize

pub fn set_user_register(&mut self, index: usize, value: usize)