Invention Grant
US07996687B2 Product for providing a scalable trusted platform module in a hypervisor environment
失效
用于在管理程序环境中提供可扩展的可信平台模块的产品
- Patent Title: Product for providing a scalable trusted platform module in a hypervisor environment
- Patent Title (中): 用于在管理程序环境中提供可扩展的可信平台模块的产品
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Application No.: US12262445Application Date: 2008-10-31
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Publication No.: US07996687B2Publication Date: 2011-08-09
- Inventor: Richard Louis Arndt , Steven A. Bade , Thomas J. Dewkett , Charles W. Gainey, Jr. , Nia Letise Kelley , Siegfried Sutter , Helmut H. Weber
- Applicant: Richard Louis Arndt , Steven A. Bade , Thomas J. Dewkett , Charles W. Gainey, Jr. , Nia Letise Kelley , Siegfried Sutter , Helmut H. Weber
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Yee & Associates, P.C.
- Agent Matthew W. Baca
- Main IPC: G06F11/30
- IPC: G06F11/30 ; H04K1/10

Abstract:
Multiple logical partitions are provided in a data processing system. A unique context is generated for each one of the logical partitions. When one of the logical partitions requires access to the hardware TPM, that partition's context is required to be stored in the hardware TPM. The hardware TPM includes a finite number of storage locations, called context slots, for storing contexts. Each context slot can store one partition's context. Each one of the partitions is associated with one of the limited number of context storage slots in the hardware TPM. At least one of the context slots is simultaneously associated with more than one of the logical partitions. Contexts are swapped into and out of the hardware TPM during runtime of the data processing system so that when ones of the partitions require access to the hardware TPM, their required contexts are currently stored in the hardware TPM.
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