Secure management of operations on protected virtual machines
US10956321B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2019 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Jul 19, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/062
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A virtual secure mode is enabled for a virtual machine operating in a computing environment that is associated with a plurality of different trust levels. First, a virtual secure mode image is loaded into one or more memory pages of a virtual memory space of the virtual machine. Then, the one or more memory pages of the virtual memory space are made inaccessible to one or more trust levels having a relatively lower trust level than a launching trust level that is used by a virtual secure mode loader to load the virtual secure mode image. A target virtual trust level is also enabled on a launching virtual processor for the virtual machine that is higher than the launching trust level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.