Restricted speculative execution mode to prevent observable side effects
US11681533B2 · kind B2 · utility
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5References
15Claims
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Key dates
| Filing date | Jun 17, 2019 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Jun 17, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/034
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of methods and apparatuses for restricted speculative execution are disclosed. In an embodiment, a processor includes configuration storage, an execution circuit, and a controller. The configuration storage is to store an indicator to enable a restricted speculative execution mode of operation of the processor, wherein the processor is to restrict speculative execution when operating in restricted speculative execution mode. The execution circuit is to perform speculative execution. The controller to restrict speculative execution by the execution circuit when the restricted speculative execution mode is enabled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.