启/禁用PCIe设备
==================

.. code-block:: shell

   # 1.查看需要禁用的设备id
   lspci
   03:00.0 Processing accelerators: Huawei Technologies Co., Ltd. Device d802 (rev 20)

   # 2. 将设备从 PCIe 总线上"热移除"，相当于软件层面拔掉
   echo 1 | sudo tee /sys/bus/pci/devices/0000:03:00.0/remove

   # 3. 恢复：重新扫描总线或重启系统
   echo 1 | sudo tee /sys/bus/pci/rescan