Virtual machine monitor, virtual machine system and clock distribution method thereof
US8086890B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2008 |
| Grant date | Dec 27, 2011 |
| Priority date | — |
| Expiry date | May 1, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/45533
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A virtual machine monitor, a virtual machine system and a clock distribution method thereof. The clock distribution method includes: distributing real clock resource to a Guest Operation System (GOS), and saving correspondence between said GOS and said real clock resource; intercepting an access operation of said GOS to a virtual clock resource; sending said access operation to the corresponding real clock resource according to said correspondence, and then performing a write operation, or injecting an interrupt of said real clock resource into a local Advanced Programmable Interrupt Controllers (APIC) of a virtual CPU of the corresponding GOS of said GOSs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.