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US 8,751,785 B2Granted
Memory tagging and preservation during a hot upgrade
AssigneeInternational Business Machines Corporation
InventorsDan Aloni, Maor Ben-Dayan
Life of this patent
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Abstract
A method includes tagging, by a processor executing a first operating system kernel, a region of a volatile memory coupled to the processor, and initiating a boot of a second operating system kernel while preserving in the volatile memory contents stored therein. Following the boot of the second operating system kernel, a set of parameters referencing the tagged region is retrieved from the volatile memory, and the tagged region is then used, based on the retrieved set of parameters.
Claims8
A method, comprising:
- tagging, by a processor executing a first operating system kernel, a region of a volatile memory coupled to the processor;
- initiating a boot of a second operating system kernel while preserving in the volatile memory contents stored therein;
- retrieving, following the boot of the second operating system kernel, a set of parameters referencing the tagged region from the volatile memory;
- and
- using the tagged region, based on the retrieved set of parameters,
- wherein tagging the volatile memory region comprises identifying the set of parameters referencing the tagged region, and storing, to the volatile memory, the set of parameters.
3 more elements
Dependencies are inferred from the claim text.