Spectre fixes with indirect valid table
US11500643B2 · kind B2 · utility
0Cited by
1References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2020 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Nov 13, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/52
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a microprocessor, comprising: a branch prediction table comprising plural entries, wherein at least a portion of the plural entries corresponds to an indirect branch type; and an indirect valid table; wherein based on an indirect branch instruction fetch, an entry corresponding to an indirect branch instruction in the branch prediction table is configured as invalid based on clearing a corresponding entry in the indirect valid table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.