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September 15 - 16, 2022 | Dublin, Ireland + Virtual
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Thursday, September 15 • 15:35 - 16:20
Secure and Dynamic Hardware Partitioning Management on Heterogeneous SoC - Zahra Tarkhani, Microsoft Corporation

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Heterogeneous SoC architectures enable a wide range of functionalities, notably for modern IoT/edge platforms. Modern SoCs contain heterogeneous CPUs (e.g., a combination of ARM and RISC-V architectures) and peripherals. As a result, the systems stack on such devices includes multiple OSs (e.g., Linux and FreeRTOS), hypervisors, or TEEs (trusted execution environments). Hence secure partitioning and sharing hardware resources within such complex system layers is challenging. Static hardware partitioning at boot time can not satisfy most use cases' security, performance, or compatibility requirements. This talk describes a hardware-assisted dynamic partitioning framework for Linux- and TEE-based heterogeneous architectures. We first summerise state-of-the-art hardware features for fine-grained privilege separation. Then we discuss how our solution modifies the Linux kernel, trusted firmware, and TEE kernel to achieve this goal while resolving various security and functionality challenges.

Speakers
avatar for Zahra Tarkhani

Zahra Tarkhani

Microsoft
Zahra works at Microsoft and her work is focused on systems, security and IoT. Recently, she finished her PhD at the University of Cambridge, where she worked on enhancing hardware-assisted mechanisms in privilege separation, compartmentalization, threat analysis, and attack inve... Read More →



Thursday September 15, 2022 15:35 - 16:20 IST
Liffey A (Level 1)
  Refereed Presentations
  • Speaker Details Virtual
  • Presentation Slides Attached Yes