Struct TlbFlushBatch 

pub struct TlbFlushBatch { /* private fields */ }

Batched TLB flush accumulator.

Collects up to MAX_BATCH virtual addresses for individual flushes. If more than MAX_BATCH addresses are accumulated, the entire TLB is flushed on commit. This reduces the overhead of multiple individual invlpg instructions in loops (e.g., munmap of many pages).

Implementations

impl TlbFlushBatch

pub const fn new() -> Self

Create a new empty batch.

pub fn add(&mut self, vaddr: u64)

Add an address to the batch. Does not flush yet.

pub fn flush(self)

Flush all accumulated addresses. If > MAX_BATCH, do a full TLB flush.

pub fn len(&self) -> usize

Number of addresses accumulated

pub fn is_empty(&self) -> bool

Is the batch empty?

pub fn flush_with_shootdown(self)

Flush locally and broadcast TLB shootdown IPI to all other CPUs.

On single-CPU systems the IPI is a no-op (no other CPUs to notify). On multi-CPU systems, remote CPUs receive vector 49 and flush their entire TLB in the handler.

Trait Implementations

impl Default for TlbFlushBatch

fn default() -> Self

Returns the “default value” for a type.