Apparatus and method for guest and root register sharing in a virtual machine
US9086906B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2012 |
| Grant date | Jul 21, 2015 |
| Priority date | — |
| Expiry date | Jul 13, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/4555
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer readable storage medium includes executable instructions to define a processor with guest mode control registers supporting guest mode operating behavior defined by guest context specified in the guest mode control registers. The guest mode control registers include a control bit to specify a guest access blocked register state and a shared register state. Root mode control registers support root mode operating behavior defined by root context specified in the root mode control registers. The root mode control registers include control bits to enable replicated register state access and shared register state access. The guest context and the root context support virtualization of hardware resources such that multiple operating systems supporting multiple applications are executed by the hardware resources.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.