Relocating page tables and data amongst memory modules in a virtualized environment
US9058287B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 27, 2012 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | Aug 20, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/505
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Relocating data in a virtualized environment maintained by a hypervisor administering access to memory with a Cache Page Table (‘CPT’) and a Physical Page Table (‘PPT’), the CPT and PPT including virtual to physical mappings. Relocating data includes converting the virtual to physical mappings of the CPT to virtual to logical mappings; establishing a Logical Memory Block (‘LMB’) relocation tracker that includes logical addresses of an LMB, source physical addresses of the LMB, target physical addresses of the LMB, a translation block indicator for each relocation granule, and a pin count associated with each relocation granule; establishing a PPT entry tracker including PPT entries corresponding to the LMB to be relocated; relocating the LMB in a number of relocation granules including blocking translations to the relocation granules during relocation; and removing the logical addresses from the LMB relocation tracker.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.