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TrustZone Technology Support in Zynq-7000 All … TrustZone Support in the Zynq-7000 AP SoC Processing System Each of the ARM processor cores in the Zynq-7000 AP SoC PS domain provides separate NS bit configuration for Secure/Non-Secure mode selection. The NS bit is defined in the Secure Configuration Register (SCR) … STM32L5 Series TrustZone® features - Application note 3 TrustZone implementation on STM32L5 Series 3.1 Activation of STM32L5 TrustZone In the STM32L5, the TrustZone is disabled by default and enabled by setting the TZEN option bit in the corresponding option byte. All the features described in this section and the rest of the document are applied to the STM32L5 devices with TrustZone enabled. TrustZone for Cortex-M – Arm TrustZone technology for Arm Cortex-M processors enables robust levels of protection at all cost points for IoT devices. The technology reduces the potential for attack by isolating the critical security firmware, assets and private information from the rest of the application.

ARM Security Technology Building a Secure System using

ARM TrustZone: transition management 12 Switch between normal and secure domain Monitor Gatekeeper that controls migration between Normal and Secure world In normal world, have both user mode and privileges mode. Same for Secure world Secure device drivers typically run in user mode Cannot switch the NS bit in user mode Secure Monitor Call SMC Support for TrustZone Technology in the Zynq-7000 AP SoC WP429 (v1.0) May 20, 2014 www.xilinx.com 5 TrustZone Support in the Zynq-7000 AP SoC Processing System Each of the ARM processor cores in the Zynq-7000 AP SoC PS domain provides separate NS bit configuration for Secure/Non-Secure mode selection. The NS bit is 4 6 )7 )2 8% 8 -3 2 3 9 8 0-2 ) % wttgp vuvcvgqhgo dgffgfugewtkv[+p vtqfwevkqp vqvj g# 4 / 6twuv

Rust OP-TEE TrustZone SDK Mingshen Sun Baidu X-Lab RustCon Asia, Beijing, April 2019

SoK: Understanding the Prevailing Security Vulnerabilities