Dynamic adjustment of memory for storing protection metadata
US12073104B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2023 |
| Grant date | Aug 27, 2024 |
| Priority date | — |
| Expiry date | Apr 13, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0673
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
There is provided a memory protection unit configured to maintain region metadata associated with storage regions of off-chip storage and protection metadata associated with each of the storage regions. The protection metadata is stored in the off-chip storage, and the region metadata encodes whether each of the storage regions belongs to a set of protected storage regions or to a set of unprotected storage regions and encodes information indicating corresponding protection metadata associated with each storage region. The memory protection unit is configured to update the region metadata in response to a region update request identifying a given storage region for which the region metadata is to be modified and to dynamically adjust an amount of memory required to store protection metadata associated with the set of protected storage regions in response to the update to the region metadata.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.