func: void qpci_memread(QPCIDevice *dev, void *data, void *buf, size_t len)
  
  {
  
      uintptr_t addr = (uintptr_t)data;
  
  
  
      g_assert(addr >= QPCI_PIO_LIMIT);
  
      dev->bus->memread(dev->bus, addr, buf, len);
  
  }
  