Invention Grant
- Patent Title: System and method for secure SMI memory services
- Patent Title (中): 用于安全SMI内存服务的系统和方法
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Application No.: US13749448Application Date: 2013-01-24
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Publication No.: US09047263B2Publication Date: 2015-06-02
- Inventor: Allen Wynn
- Applicant: Allen Wynn
- Applicant Address: US TX Round Rock
- Assignee: Dell Products L.P.
- Current Assignee: Dell Products L.P.
- Current Assignee Address: US TX Round Rock
- Agency: Baker Botts L.L.P.
- Main IPC: G06F13/24
- IPC: G06F13/24

Abstract:
In accordance with the present disclosure, a system and method are herein disclosed for providing secure SMI memory services, including the protection of SMM memory from surreptitious attacks by, for example, rootkits. Information handling systems are susceptible to attacks, especially attacks on SMM memory. In one example, an SMI handler corresponding to the SMI Driver associated with an SMI interrupt performs validation of a password. An SSMS driver allocates memory for the SMI handler to use with the validation process and also performs a secure erase of allocated memory blocks upon completion of all secure SMI Memory Services. By controlling the validation and secure erase process through the use of the SMI handler and SSMS driver, information leakage can be prevented resulting in system data integrity.
Public/Granted literature
- US20140207988A1 SYSTEM AND METHOD FOR SECURE SMI MEMORY SERVICES Public/Granted day:2014-07-24
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