Patent ID: 11902323
Assignee: ORACLE INTERNATIONAL CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 8:
9. A cloud infrastructure node configured to identify bit flips in computing instances of a cloud infrastructure service and migrate resources from identified computing instances, the cloud infrastructure node comprising:
a processor; and
a computer-readable medium including instructions that, when executed by the processor, cause the processor to:
process, for each computing instance in the cloud infrastructure service, a set of memory rows to identify one or more bit flips in each of the computing instances;
aggregate the identified bit flips for each computing instance by generating a bitmap comprising the identified bit flips for each computing instance;
validate at least a subset of the one or more computing instances as comprising sustained bit flips by processing the bitmap for each computing instance, each of the one or more validated computing instances associated with a Rowhammer attack; and
for each of the subset of one or more validated computing instances:
migrate computing resources residing on each of the subset of one or more validated computing instances to one or more corresponding nodes in the cloud infrastructure service; and
update a cloud scheduler to redirect processing requests from each of the subset of one or more validated computing instances to each of the one or more corresponding nodes.