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Tuesday, September 22 • 1:25pm - 1:50pm
LVC20-112 PSA Secure Partitions in OP-TEE

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Platform Security Architecture Firmware Framework for Arm v8-A [1] describes a software architecture and interfaces that standardize isolation and communication between the various software images.
Depending on the framework configuration, OP-TEE can be deployed either as a Secure-EL1 Secure Partition managed by a Secure Partition Manager (SPM) executing at secure EL2, or can serve as an SPM for S-EL0 Secure Partitions.
In this session we'll focus on the potential use cases for S-EL0 partitions, such as a basic set of PSA services (Crypto, Storage and Attestation), Standalone MM or an existing set of TAs, managed by OP-TEE as the partition manager core.
We'll cover the design considerations and implementation choices made for an initial prototype, some of the challenges encountered and the status of the work in progress to support multiple types of partitions within a single standard framework in OP-TEE.

[1] https://developer.arm.com/docs/den0077/a


Speakers
avatar for Miklos Balint

Miklos Balint

Principal Software Engineer at Arm, Arm
Miklos is a software engineer at Arm focusing on security. He has been working with embedded software for over 10 years in environments ranging from telecom core network nodes to server blades and IoT devices. He is a maintainer of Trusted Firmware M open source project and has lately... Read More →


Tuesday September 22, 2020 1:25pm - 1:50pm
Track 1 - IoT/Edge/Embedded

Attendees (17)