Cryptographic memory ownership table for secure public cloud
US11520906B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2020 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Mar 12, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/1052
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-readable medium comprises instructions that, when executed, cause a processor to execute an untrusted workload manager to manage execution of at least one guest workload. The instructions, when executed, also cause the processor to (i) receive a request from a guest workload managed by the untrusted workload manager to access a memory using a requested guest address; (ii) obtain, from the untrusted workload manager, a translated workload manager-provided hardware physical address to correspond to the requested guest address; (iii) determine whether a stored mapping exists for the translated workload manager-provided hardware physical address; (iv) in response to finding the stored mapping, determine whether a stored expected guest address from the stored mapping matches the requested guest address; and (v) if the stored expected guest address from the stored mapping matches the requested guest address, enable the guest workload to access contents of the translated workload-manager provided hardware physical address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.