LVC21F-117 Secure Partition Manager for Arm Cortex-A

Session Abstract

Level: Intermediate  The Secure Partition Manager (SPM) for Arm Cortex-A is a firmware component residing in the secure side of TrustZone (at the Secure EL2 exception level). Its intent is to isolate mutually mistrusting secure partitions and help SW components defragmentation. It relies on Arm's Firmware Framework for Cortex-A specification as a foundation for the protocol and memory sharing operations. It is developed as an open source project in trustedfirmware.org with regular updates following the Trusted Firmware-A's release cadence. In this follow up session, we present the development status of the SPM with this agenda: -A brief on the recently added SPM features and roadmap. -Planned features from the newly released FF-A v1.1 specification. -Recent improvement to the Hafnium CI. -Introduction of S-EL0 partitions and proposed technical solutions. -A brief on Arm CCA impact to the SPM.

Session Speakers

Olivier Deprez

Principal Software Engineer (Arm)

Olivier is part of Arm's Open Source Software group. He's maintainer for the Trusted Firmware-A project and technical lead for the Secure Partition Manager implementation on Cortex-A.

Joao Alves

Firmware Engineer

Firmware Engineer at Arm in the Open Source Software group. Maintainer of the Hafnium project.

Level: Intermediate 

The Secure Partition Manager (SPM) for Arm Cortex-A is a firmware component residing in the secure side of TrustZone (at the Secure EL2 exception level). Its intent is to isolate mutually mistrusting secure partitions and help SW components defragmentation. It relies on Arm’s Firmware Framework for Cortex-A specification as a foundation for the protocol and memory sharing operations. It is developed as an open source project in trustedfirmware.org with regular updates following the Trusted Firmware-A’s release cadence. In this follow up session, we present the development status of the SPM with this agenda: -A brief on the recently added SPM features and roadmap. -Planned features from the newly released FF-A v1.1 specification. -Recent improvement to the Hafnium CI. -Introduction of S-EL0 partitions and proposed technical solutions. -A brief on Arm CCA impact to the SPM.

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