diff options
Diffstat (limited to 'src/tlb.rs')
| -rw-r--r-- | src/tlb.rs | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/src/tlb.rs b/src/tlb.rs deleted file mode 100644 index ec39e3e..0000000 --- a/src/tlb.rs +++ /dev/null @@ -1,20 +0,0 @@ -//! Functions to flush the translation lookaside buffer (TLB). - -/// Invalidate the given address in the TLB using the `invlpg` instruction. -/// -/// # Safety -/// This function is unsafe as it causes a general protection fault (GP) if the current privilege -/// level is not 0. -pub unsafe fn flush(addr: usize) { - asm!("invlpg ($0)" :: "r" (addr) : "memory"); -} - -/// Invalidate the TLB completely by reloading the CR3 register. -/// -/// # Safety -/// This function is unsafe as it causes a general protection fault (GP) if the current privilege -/// level is not 0. -pub unsafe fn flush_all() { - use controlregs::{cr3, cr3_write}; - cr3_write(cr3()) -} |