因此，新的处理器提供DMA地址转换和权限检查以实现有效的设备透传，而不是捕获并模拟对管理程序下的物理设备的访问。

So, instead of catching and emulating access to physical devices below the hypervisor, new processors provide DMA address translation and permissions checking for efficient device passthrough.

youdao

至少有一个逻辑接口与这个物理设备链接，比如en0或et0，在逻辑接口上配置IP地址。

Then, at least one logical interface will be linked to this physical device, such as en0 or et0, on which the IP address will be configured.

youdao

一个MAC地址是一个独一无二的字符串。由于它标识一个独特的物理设备——一个唯一的网卡——MAC地址，按照约定，在网卡中将永不会改变。

A MAC address is a unique character string, and since it identifies a specific physical device — one individual NIC — the MAC address, by convention, never changes for the life of the NIC.

youdao