Virtualized system and method of preventing memory crash of same
US12242878B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2022 |
| Grant date | Mar 4, 2025 |
| Priority date | — |
| Expiry date | May 18, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/681
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A virtualized system is provided. The virtualized system includes: a memory device; a processor configured to provide a virtualization environment; a direct memory access device configured to perform a function of direct memory access to the memory device; and a memory management circuit configured to manage a core access of the processor to the memory device and a direct access of the direct memory access device to the memory device. The processor is further configured to provide: a plurality of guest operating systems that run independently from each other on a plurality of virtual machines of the virtualization environment; and a hypervisor configured to control the plurality of virtual machines in the virtualization environment and control the memory management circuit to block the direct access when a target guest operating system controlling the direct memory access device, among the plurality of guest operating systems is rebooted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.