- 专利标题： SEAMLESS SMM GLOBAL DRIVER UPDATE BASE ON SMM ROOT OF TRUST
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申请号： US17134329申请日： 2020-12-26
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公开(公告)号： US20210141903A1公开(公告)日： 2021-05-13
- 发明人: Sarathy Jayakumar , Yao Jiewen , Murugasamy K Nachimuthu , Ruixia LI , Siyuan Fu
- 申请人： Sarathy Jayakumar , Yao Jiewen , Murugasamy K Nachimuthu , Ruixia LI , Siyuan Fu
- 申请人地址： US OR Portland; CN Shanghai; US OR Beaverton; CN Shanghai; CN Shanghai
- 专利权人： Sarathy Jayakumar,Yao Jiewen,Murugasamy K Nachimuthu,Ruixia LI,Siyuan Fu
- 当前专利权人： Sarathy Jayakumar,Yao Jiewen,Murugasamy K Nachimuthu,Ruixia LI,Siyuan Fu
- 当前专利权人地址： US OR Portland; CN Shanghai; US OR Beaverton; CN Shanghai; CN Shanghai
- 主分类号： G06F21/57
- IPC分类号： G06F21/57 ; G06F21/31 ; G06F21/79
摘要：
Methods and apparatus for seamless SMM (System Management Mode) global driver update base on SMM Root-of-Trust. Mechanisms are provided to load and replace SMM drivers at runtime in a secure manner, without requiring an SMM firmware update and platform reset. SMM code is executed by BIOS during boot in a hidden area of memory called SMRAM space. Seamless update using an SMM Global Driver Update provides a method to load and replace all SMM drivers (including SMM infrastructure) on an already shipped platform production for purposes such as bug fixes. The principles and teachings may also be applied to update other types of secure execution mode code in addition to SMM code.
公开/授权文献
- US12130924B2 Seamless SMM global driver update base on SMM root of trust 公开/授权日：2024-10-29
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