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System and Method for Securing Embedded Controller Communications by Verifying Host System Management Mode Execution
System and Method for Securing Embedded Controller Communications by Verifying Host System Management Mode Execution
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机译:通过验证主机系统管理模式执行来确保嵌入式控制器通信安全的系统和方法
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摘要
An information handling system includes a processor operable to provide a branch trace message, and an embedded controller coupled to the processor via a primary interface and via a management interface. The embedded controller receives a management transaction from the processor via the primary interface. In response to receiving the management transaction, the embedded controller requests the branch trace message via the management interface and determines if the processor is operating in a system management mode based upon the branch trace message.
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