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    • 1. 发明申请
    • MECHANISM FOR BROADCASTING SYSTEM MANAGEMENT INTERRUPTS TO OTHER PROCESSORS IN A COMPUTER SYSTEM
    • 用于广播系统管理的机制与计算机系统中的其他处理器的中断
    • WO2009017706A1
    • 2009-02-05
    • PCT/US2008/009120
    • 2008-07-28
    • ADVANCED MICRO DEVICES, INC.CLARK, Michael, T.ILIC, Jelena
    • CLARK, Michael, T.ILIC, Jelena
    • G06F13/24
    • G06F13/24
    • A computer system (10) includes a system memory (14), a plurality of processor cores (15A, 15B), and an input/output (I/O) hub (13A) that may communicate with each of the processor cores. In response to detecting an occurrence of an internal system management interrupt (SMI), each of the processor cores may save to a system management mode (SMM) save state in the system memory, information corresponding to a source of the internal SMI. In response to detecting the internal SMI, each processor core may further initiate an I/O cycle to a predetermined port address within the I/O hub. The I/O hub may broadcast an SMI message to each of the processor cores in response to receiving the I/O cycle. Each of the processor cores may further save to the SMM save state in the system memory, respective internal SMI source information in response to receiving the broadcast SMI message.
    • 计算机系统(10)包括系统存储器(14),多个处理器核心(15A,15B)以及可与每个处理器核心通信的输入/输出(I / O)集线器(13A)。 响应于检测到内部系统管理中断(SMI)的发生,每个处理器核心可以保存到系统存储器中的系统管理模式(SMM)保存状态,对应于内部SMI的源的信息。 响应于检测到内部SMI,每个处理器核心可以进一步向I / O集线器内的预定端口地址发起I / O周期。 响应于接收到I / O周期,I / O集线器可以向每个处理器核心广播SMI消息。 响应于接收广播SMI消息,每个处理器核心可以进一步保存到系统存储器中的SMM保存状态,相应的内部SMI源信息。