Invention Grant
- Patent Title: Secure boot across a plurality of processors
- Patent Title (中): 通过多个处理器进行安全启动
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Application No.: US12130185Application Date: 2008-05-30
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Publication No.: US08046574B2Publication Date: 2011-10-25
- Inventor: Jason N. Dale , Jonathan J. DeMent , Clark M. O'Niell , Christopher J. Spandikow
- Applicant: Jason N. Dale , Jonathan J. DeMent , Clark M. O'Niell , Christopher J. Spandikow
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Stephen R. Tkacs; Stephen J. Walder, Jr.; Matthew B. Talpis
- Main IPC: G06F9/00
- IPC: G06F9/00 ; G06F15/177

Abstract:
Boot code is partitioned into a plurality of boot code partitions. Processors of a multiprocessor system are selected to be boot processors and are each provided with a boot code partition to execute in a predetermined boot code sequence. Each processor executes its boot code partition in accordance with the boot code sequence and signals to a next processor the successful and uncompromised execution of its boot code partition. If any of the processors does not signal successful completion and/or uncompromised execution of its boot code partition, the boot operation fails. The processors may be arranged, with regard to the boot operation, in a daisy chain, ring, or master/slave arrangement, for example.
Public/Granted literature
- US20080229092A1 Secure Boot Across a Plurality of Processors Public/Granted day:2008-09-18
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