Intel corporation (20240338319). UNIFIED ADDRESS TRANSLATION FOR VIRTUALIZATION OF INPUT/OUTPUT DEVICES simplified abstract

UNIFIED ADDRESS TRANSLATION FOR VIRTUALIZATION OF INPUT/OUTPUT DEVICES

Organization Name

intel corporation

Inventor(s)

Utkarsh Y. Kakaiya of El Dorado Hills CA (US)

Sanjay Kumar of Hillsboro OR (US)

Rajesh M. Sankaran of Portland OR (US)

Philip R. Lantz of Cornelius OR (US)

Ashok Raj of Portland OR (US)

Kun Tian of Shanghai (CN)

UNIFIED ADDRESS TRANSLATION FOR VIRTUALIZATION OF INPUT/OUTPUT DEVICES - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240338319 titled 'UNIFIED ADDRESS TRANSLATION FOR VIRTUALIZATION OF INPUT/OUTPUT DEVICES

The abstract describes embodiments of apparatuses, methods, and systems for unified address translation for virtualization of input/output devices.

• First circuitry is used to locate a context entry based on a device identifier, while second circuitry is used to locate a PASID-entry based on a Process Address Space Identifier (PASID).
• The context entry includes a page-table pointer or a PASID, while the PASID-entry includes a first-level page-table pointer or a second-level page-table pointer.
• Control fields in the apparatus, context entry, and PASID-entry indicate whether the first-level or second-level page-table pointer is to be used.

1. 1. 1. Potential Applications:

This technology can be applied in virtualization environments, cloud computing, data centers, and network infrastructure.

1. 1. 1. Problems Solved:

Unified address translation simplifies the management of input/output devices in virtualized systems, improving efficiency and performance.

1. 1. 1. Benefits:

Enhanced virtualization capabilities, improved system performance, simplified address translation processes, and better resource management.

1. 1. 1. Commercial Applications:

Title: "Unified Address Translation Technology for Enhanced Virtualization" This technology can be utilized in cloud service providers, data centers, virtualization software companies, and network infrastructure providers to optimize resource allocation and improve system performance.

1. 1. 1. Questions about Unified Address Translation Technology:

1. How does unified address translation improve the efficiency of virtualized systems?

  - Unified address translation streamlines the management of input/output devices, reducing overhead and improving system performance.

2. What are the key benefits of using a Process Address Space Identifier (PASID) in address translation?

  - PASID helps in efficiently managing address spaces for different processes, enhancing security and performance in virtualized environments.

Original Abstract Submitted

embodiments of apparatuses, methods, and systems for unified address translation for virtualization of input/output devices are described. in an embodiment, an apparatus includes first circuitry to use at least an identifier of a device to locate a context entry and second circuitry to use at least a process address space identifier (pasid) to locate a pasid-entry. the context entry is to include at least one of a page-table pointer to a page-table translation structure and a pasid. the pasid-entry is to include at least one of a first-level page-table pointer to a first-level translation structure and a second-level page-table pointer to a second-level translation structure. the pasid is to be supplied by the device. at least one of the apparatus, the context entry, and the pasid entry is to include one or more control fields to indicate whether the first-level page-table pointer or the second-level page-table pointer is to be used.