func: static void pc_fw_add_pflash_drv(void)
  
  {
  
      QemuOpts *opts;
  
      QEMUMachine *machine;
  
      char *filename;
  
  
  
      if (bios_name == NULL) {
  
          bios_name = BIOS_FILENAME;
  
      }
  
      filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
  
  
  
      opts = drive_add(IF_PFLASH, -1, filename, "readonly=on");
  
  
  
      g_free(filename);
  
  
  
      if (opts == NULL) {
  
        return;
  
      }
  
  
  
      machine = find_default_machine();
  
      if (machine == NULL) {
  
        return;
  
      }
  
  
  
      drive_init(opts, machine->use_scsi);
  
  }
  