pub unsafe extern "C" fn switch_to_user(
ds: SegmentSelector,
sp: *mut u32,
cs: SegmentSelector,
ip: *mut (),
syscall_ret: u32,
) -> !Expand description
Switch to the user by faking a return from an interrupt.
iretd expects the following stack layout:
| Offset | Value |
|---|---|
| 16 | SS (Ring 3) |
| 12 | ESP |
| 8 | EFLAGS |
| 4 | CS (Ring 3) |
| 0 | EIP |
The top of stack (ESP) points the EIP at the bottom (stack grows downwards).