这些操作可以是安全配置更改、密钥和证书管理、访问控制策略更改、总线和其他系统资源管理等等。
These actions can be security configuration changes, key and certificate management, access control policy changes, bus and other system resources management, and so on.
用一个控制器硬件去识别总线请求并允许请求设备去访问总线。
A single hardware control unit will recognize a request and grant access to the bus to a requesting device.
PCI总线是一个重要的组件对于我们面临的访问问题因为控制器最可能在PCI总线上(如果不是，它是IS A总线而且现在应该被废除)。
The PCI bus is an important component for our access problem we face because the controller will most likely reside on the PCI bus (if not, its an ISA controller and those should be extinct by now).
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