Merge remote-tracking branch 'amit/master' into staging (f40b7d11) · Commits · SUMMER2020 / students / proj-2021291

hw/virtio-serial-bus.c

+13 −1

Original line number	Diff line number	Diff line
		@@ -163,7 +163,19 @@ static void do_flush_queued_data(VirtIOSerialPort port, VirtQueue vq,
		abort();
		}
		if (ret == -EAGAIN \|\| (ret >= 0 && ret < buf_size)) {
		/*
		* this is a temporary check until chardevs can signal to
		* frontends that they are writable again. This prevents
		* the console from going into throttled mode (forever)
		* if virtio-console is connected to a pty without a
		* listener. Otherwise the guest spins forever.
		* We can revert this if
		* 1: chardevs can notify frondends
		* 2: the guest driver does not spin in these cases
		*/
		if (!info->is_console) {
		virtio_serial_throttle_port(port, true);
		}
		port->iov_idx = i;
		if (ret > 0) {
		port->iov_offset += ret;