Abstract:
Apparatus and a method for testing each write to memory to determine whether it is addressed to an address identical to that of another write to memory waiting to be processed and merging the valid data in any subsequent writes to the same address until a memory write occurs.
Abstract:
An embodiment of the present invention is a technique to provide a secure authentication of chipset configuration. A first chipset configuration (CC) register set in an input/output (I/O) manageability engine (ME) partition authenticates and controls enabling a CC functionality. The I/O ME partition manages I/O resources shared with a processor in a secure manner. A second CC register set in a processor interface space provides the CC functionality. The second CC register set includes a global enable register having an enable field securely accessible to the I/O ME partition in a read and write-once accessibility and accessible to the processor via the processor interface space in a read-only accessibility.
Abstract translation:本发明的实施例是提供芯片组配置的安全认证的技术。 在输入/输出(I / O)可管理性引擎(ME)分区中设置的第一个芯片组配置(CC)寄存器对CC功能进行认证和控制。 I / O ME分区以安全的方式管理与处理器共享的I / O资源。 在处理器接口空间中设置的第二个CC寄存器提供CC功能。 第二CC寄存器集包括全局使能寄存器,其具有可读取和写入一次可访问性并且可通过处理器接口空间在只读可访问性中对处理器可访问的I / O ME分区可安全访问的使能字段。
Abstract:
A circuit for monitoring future Universal Serial Bus (USB) activities is described. Specifically, the circuit may comprise a Direct Memory Access (DMA) engine schedule prefetcher. The DMA engine schedule prefetcher accesses linked list schedule structures in main memory. The structures are checked for future frames where the linked list has USB activity scheduled. A periodic DMA engine subsequently accesses main memory only during frames where USB traffic is scheduled.
Abstract:
A method, apparatus, and system are disclosed. In one embodiment the method comprises determining whether a feature on a device is permitted to be enabled, determining whether a total number of enabled features on the device is less than or equal to a maximum number of allowable features on the device, and allowing the enabling of the device feature if the device feature is permitted to be enabled and the total number of enabled features on the device is less than or equal to the maximum number of allowable features on the device.