December 2020
Intermediate to advanced
928 pages
27h 40m
English
Content preview from Definitive Guide to Arm Cortex-M23 and Cortex-M33 Processors
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Chapter 7: TrustZone support in the memory system
Abstract
This chapter explains how the TrustZone security extension is supported by a number of memory system features. It covers the classification of memory types from security point of view, how the memory space is partitioned into Secure and Non-secure ranges, and how software can handle pointer checks using the memory system features available in the Armv8-M architecture.
Keywords
TrustZone; Secure Gateway; Non-secure callable; Security Attribution Unit (SAU); Implementation Defined Attribution Unit (IDAU); Test Target; Memory Protection Controller (MPC); Peripheral Protection Controller (PPC); Region ID
7.1: Overview
7.1.1: About this chapter
The last chapter covered the ...
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