Method start_dirty_log

vmm/src/memory_manager.rs:3245–3255

Start the dirty log in the hypervisor (kvm/mshv). Also, reset the dirty bitmap logged by the vmm. Just before we do a bulk copy we want to start/clear the dirty log so that pages touched during our bulk copy are tracked.

(&mut self)

    // Just before we do a bulk copy we want to start/clear the dirty log so that
    // pages touched during our bulk copy are tracked.
    fn start_dirty_log(&mut self) -> std::result::Result<(), MigratableError> {
        self.vm.start_dirty_log().map_err(|e| {
            MigratableError::MigrateSend(anyhow!("Error starting VM dirty log {e}"))
        })?;

        for r in self.guest_memory.memory().iter() {
            (**r).bitmap().reset();
        }

        Ok(())
    }

    fn stop_dirty_log(&mut self) -> std::result::Result<(), MigratableError> {
        self.vm.stop_dirty_log().map_err(|e| {