Apparatuses, methods, and systems for verification of input-output memory management unit to device attachment
US11599621B2 · kind B2 · utility
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24Claims
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Key dates
| Filing date | Mar 30, 2019 |
| Grant date | Mar 7, 2023 |
| Priority date | — |
| Expiry date | Oct 6, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/657
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems, methods, and apparatuses relating to performing an attachment of an input-output memory management unit (IOMMU) to a device, and a verification of the attachment. In one embodiment, a protocol and IOMMU extensions are used by a secure arbitration mode (SEAM) module and/or circuitry to determine if the IOMMU that is attached to the device requested to be mapped to a trusted domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.