Method to share a coherent accelerator context inside the kernel
US9898417B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 2016 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Jan 4, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/68
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments disclose techniques for sharing a context for a coherent accelerator in a kernel of a computer system. According to one embodiment, a request is received from a first application to perform an I/O operation within a kernel context. The request specifies a first effective address distinct to the first application. The first effective address specifies a location in a first effective address space and a first effective segment identifier. The first effective address is remapped to a second effective address. The second effective address specifies a location in a second effective address space of the kernel context and a second effective segment identifier. A virtual address mapping to a virtual address space within the kernel context is determined. The virtual address is translated to a physical memory address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.