Sierraware Introduces an Open Source Trusted Execution Environment (TEE) for 64-bit ARM Architectures

SierraTEE for Cortex-53 and Cortex-A57 ARM TrustZone Reference Designs are Available for Download

SUNNYVALE, Calif., Sept. 25, 2014 — (PRNewswire) —

SUNNYVALE, Calif., Sept. 25, 2014 /PRNewswire-iReach/ -- Sierraware, the pioneer in virtualization and security, today announced the release of next generation open source TEE for ARM 64-bit architecture. The SierraTEE supports multiple operating systems, such as Linux, BSD, or Android on any 64-bit platforms utilizing Cortex-A53, or Cortex-A57 cores.  With the additional SierraVisor, multiple concurrent guest systems can access the secure world provided by ARM TrustZone technology.


SierraTEE provides true 64-bit Global Platform Internal and Client APIs and development tools. SierraTEE also supports the full suite of ARM-v8 extensions for multicore and power management. This powerful open source stack enables OEMs developing a wide array of products, ranging from battery operated devices to military grade communication equipment, to take advantage of emerging 64-bit processors.

The SierraTEE Secure OS:

  • Supports a wide range of SOCs, including mobile platforms, set-top boxes and automotive applications.
  • Streamlines development by supporting SMP and AMP process management.
  • Offers TrustZone-based Android containers and integrity management for best-in-class hardware-assisted protection against malware.
  • Supports mixed mode operation, allowing for legacy 32-bit ARM-v7 OSes to co-exist with ARM64 TEE.
  • Secures a variety of applications such as mobile payment, device authentication, and DRM for high definition 4K content protection.

"Unified 32-bit/64-bit tools and SecureOS enables equipment manufacturers to quickly transition from 32-bit to 64-bit systems," said Gopu Subramanian, CTO of Sierraware. "Our TEE is designed to address a variety of different devices including SDN networking, industrial, automotive, and mobile devices."

SierraTEE is available for download under the GNU General Public License (GPL) at:

Users can connect with other Open Virtualization developers at:

For a commercial, licensed version of SierraVisor, contact Sierraware at Email Contact. Technical support, professional services, and porting services are also offered by Sierraware's ARM development experts.

About Sierraware

Sierraware, founded in 2010, is a leading provider of virtualization and security solutions for ARM processors. Sierraware offers the SierraVisor Hypervisor, the SierraTEE Trusted Execution Environment, and SierraVDI Secure Virtual Desktop Infrastructure (VDI) for enterprises. For more information, visit

Media Contact: Suresh Gopal, Sierraware, 1-408-337-6400, Email Contact

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