ns8250_dev
com_rcv_handle_break(struct ns8250_dev *com, uint8_t cmd)
com_rcv(struct ns8250_dev *com, uint32_t vm_id, uint32_t vcpu_id)
struct ns8250_dev com1_dev;
static void com_rcv(struct ns8250_dev *, uint32_t, uint32_t);