Invention Grant
- Patent Title: Reconfigurable recovery modes in high availability processors
- Patent Title (中): 高可用性处理器中可重构的恢复模式
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Application No.: US13447554Application Date: 2012-04-16
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Publication No.: US08954797B2Publication Date: 2015-02-10
- Inventor: Fadi Y. Busaba , Steven R. Carlough , Christopher A. Krygowski , Brian R. Prasky , Chung-Lung K. Shum
- Applicant: Fadi Y. Busaba , Steven R. Carlough , Christopher A. Krygowski , Brian R. Prasky , Chung-Lung K. Shum
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Cantor Colburn LLP
- Agent Margaret McNamara
- Main IPC: G06F11/00
- IPC: G06F11/00 ; G06F11/07

Abstract:
A computer program product for performing error recovery is configured to perform a method that includes creating, by a processor, a recovery checkpoint. The processor is dynamically switched into a non-recoverable processing mode of operation based on creating the software recovery checkpoint. The non-recoverable processing mode of operation is a mode in which a subset of hardware error recovery resources are powered-down or re-purposed for instruction processing. It is determined, during the non-recoverable processing mode of operation, that a new software recovery checkpoint is required. Based on the determining that a new software recovery checkpoint is required, the processor is dynamically switched into a recoverable processing mode of operation. The recoverable processing mode of operation is a mode in which hardware error recovery resources, including at least one of the hardware error recovery resources in the subset, are purposed for hardware error recovery operations.
Public/Granted literature
- US20130275801A1 RECONFIGURABLE RECOVERY MODES IN HIGH AVAILABILITY PROCESSORS Public/Granted day:2013-10-17
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