Arm Zena CSS
  • Overview
    • Introduction
    • Audience
      • Documentation structure
    • Arm Zena CSS overview
      • Software components
      • Platform IP
      • Architectures
        • Baremetal architecture
        • Virtualization architecture
    • Use cases
      • PSA APIs Tests in Primary Compute
      • Safety Status Unit (SSU) integration test
      • Fault Management Unit (FMU) integration test
      • System Monitoring Control Framework (SMCF) integration test
      • Software Built-In Self-Test Controller (SBISTC) integration test
      • Platform Fault Detection Interface (PFDI) integration
      • Platform Fault Detection Interface (PFDI) in Safety Island Cluster 1
      • Reliability, Availability, and Serviceability (RAS) error processing validation
      • Arm Cryptographic Extension demo
      • Mission-based power profile demo
      • Primary Compute domain reset
      • Virtualization demo
      • Linux distribution installation
      • Arm SystemReady Devicetree validation
      • Secure Firmware Update
      • Heterogeneous Inter-Processor Communication (HIPC) Demo
    • Safety and security considerations
    • Repository structure
    • Repository license
    • Contributions and issue reporting
    • Feedback and support
  • User guide
    • Reproduce
      • Build host environment setup
        • System requirements
        • Install dependencies
      • Download
      • Reproducing the use cases
        • General
          • List of Demos
          • Kas build
          • FVP
        • Arm Automotive Solutions demo build
          • Build baremetal architecture
          • Build virtualization architecture
        • Build Board Support Package (BSP)
          • Build
          • Run the FVP
        • PSA APIs Tests in Primary Compute
          • Baremetal architecture
        • Integration Test Using Debugger CLI
          • Debugger CLI Access
          • Running SSU Integration Test
          • Running FMU Integration Test
          • Running SBISTC Integration Test
          • Running SMCF Integration Test
        • PFDI Demo
          • Platform Fault Detection Interface (PFDI) in Primary Compute
          • Platform Fault Detection Interface (PFDI) in Safety Island Cluster 1
        • RAS error processing demo
          • Build
          • Run the FVP
          • Test corrected error processing
          • Test deferred error processing
          • Test uncorrected error processing
          • Terminate the FVP
        • Arm Cryptographic Extension demo
          • Build
          • Run the FVP
          • Run the demo
        • Mission-based power profile demo
          • Build
          • Run the FVP
          • Run the demo
        • Primary Compute domain reset
          • Option 1: U-Boot console
          • Option 2: Linux console
        • Virtualization Demo
          • Build
          • Run the FVP
        • Linux distribution installation (Debian, openSUSE and Rocky Linux)
          • Debian
          • openSUSE
          • Rocky Linux
        • Arm SystemReady Devicetree validation
          • Arm SystemReady Devicetree firmware build
          • Arm SystemReady Devicetree Architecture Compliance Suite (ACS) tests
        • Connectivity demo
          • Heterogeneous Inter-Processor Communication (HIPC) Demo
        • Maintenance and platform-specific flows
          • Automated validation
          • Secure Firmware Update
          • Support for Arm Zena CSS Cfg0 RTL
    • Customize
      • Available build environment variables
      • Using build environment variables
  • Solution design
    • Components
      • System Management Block
        • RSE
        • Safety Island block
          • SCP-firmware
          • Zephyr
          • Configurations
        • System Management Domain
          • MHUv3 Communication
      • Primary Compute
        • Device tree
        • Trusted Firmware-A
          • Downstream changes - RD-Aspen
        • Trusted Firmware-A Tests
          • Downstream changes - RD-Aspen
        • OP-TEE
          • Downstream Changes - RD-Aspen
        • Trusted Services
          • Downstream Changes - RD-Aspen
        • U-Boot
          • Downstream changes - RD-Aspen
        • systemd-boot
      • Address spaces
    • Integration
      • meta-zena-css-bsp Yocto layer
        • Yocto build configuration
        • Yocto layers dependency
    • Boot process
      • RSE-oriented boot flow
        • Images layout
        • Chain of Trust (CoT)
        • Image signing
        • System provisioning and image authentication
        • Key customization
        • Measured Boot
        • Boot Flow
      • Primary Compute boot flow
        • Trusted Board Boot (TBB)
        • UEFI Secure Boot
          • Architecture
        • Primary Compute domain reset
    • Secure Services
      • Introduction
      • Primary Compute Secure Services
        • Architecture
        • PSA APIs Tests
        • libts
        • libpsats
        • SE-Proxy SP
        • SMM Gateway SP
    • Secure Firmware Update
      • Introduction
      • Architecture
    • RSE image encryption
      • Overview of RSE image encryption and decryption
      • Encryption approach
      • Keys and key hierarchy
        • Key sources and usage
        • Key hierarchy
      • Encrypted image format example
      • Boot-time decryption
    • Arm Cryptographic Extension
      • Introduction
      • HTTPS connection demo
    • Platform Fault Detection Interface (PFDI)
      • Overview
      • Application Processor PFDI Implementation
        • Architecture
        • Interaction Flow
          • Out-of-Reset PFDI
          • Online PFDI
      • Safety Island Cluster 1 PFDI Implementation
        • Architecture
        • Interaction Flow
          • Out-of-Reset PFDI
          • Online PFDI
      • Platform Fault Detection Interface (PFDI) Monitoring
    • Safety Status Unit (SSU)
      • Introduction
      • FMU-SSU Integration
      • Finite State Machine (FSM)
        • Module API Summary
        • Testing and Validation
    • Fault Management Unit (FMU)
      • Introduction
        • Key Capabilities
      • Design and Framework
        • FMU Register Table
        • RD-Aspen FMU Topology
        • Module API Summary
        • Escalation and Logging
        • Fault Handling Flow
        • Notifications
        • Testing and Validation
    • Software Built-In Self-Test Controller (SBISTC)
      • Introduction
        • Hardware
      • Design and Framework
        • Configuration
        • Exported APIs
        • Testing and Validation
    • Transient Fault Protection (TFP) for Application Processor
      • Introduction
      • Transient Fault Detection Mechanism
      • Fault Detection Constraints
      • Fault Reaction
      • Implementation in Software
      • Validation
    • Reliability, Availability, and Serviceability
      • Overview
        • Primary Compute CPU Core RAS
        • Error types
      • Error processing
        • Primary Compute error processing
          • TF-A
          • Linux
          • rasdaemon
        • Safety Island error processing
      • Error injection
    • System Monitoring Control Framework (SMCF)
      • System Monitoring Control Framework overview
      • SMCF configuration
      • SMCF software flow
    • Safety Boot
      • Introduction
      • Safety Island Boot Architecture
      • RSE Safety Considerations
      • Scope and Limitations
      • Design
        • LBIST
        • MBIST
        • Image Integrity
        • ATU configuration verification
        • SCR configuration verification
    • Power and performance control
      • Introduction
      • Architecture
        • CPUIdle Design
      • Interaction flow
        • CPUFreq Design
      • Interaction flow
    • Heterogeneous Inter-Processor Communication (HIPC)
      • Introduction
      • HIPC Baremetal Architecture
        • Remote Processor Messaging protocol
        • Virtual network device over RPMsg
        • Safety Island remoteproc driver
      • Memory map
        • Safety Island Cluster 1:
        • Primary Compute:
      • Network topology
        • VLAN
      • Device tree
    • Arm SystemReady Devicetree
      • Support in Arm Automotive Solutions
      • Arm SystemReady Devicetree tests
        • ACS tests
        • Linux Distributions Installation Tests
    • Validation
      • Run-time integration tests
        • OEQA tests in the BSP
        • FVP device tests
        • PSA APIs test suite integration on Primary Compute
        • Platform Fault Detection Interface (PFDI) Test
        • PFDI Safety Island CL1 tests
        • Safety Diagnostics tests
        • Primary Compute CPUs RAS tests
        • Safety Island Cluster 1
        • Arm Cryptographic Extension Performance Tests
        • Power Management CPU idle power states (C-states)
        • CPU Frequency Scaling tests
        • Integration tests validating Xen
        • Mission Based Power Profile (MBPP) demonstration tests
        • HIPC Baremetal Network Tests
        • SMCF Integration Tests
        • PFDI Monitoring on Safety Island Tests
  • Release notes
    • v2.2
      • New features
      • Changed
      • Resolved issues
      • Dependencies
      • Limitations
      • Known issues
        • Previous releases
  • License
    • Apache-2.0
    • BSD-2-Clause
    • BSD-3-Clause
    • GPL-2.0-only
    • GPL-2.0-or-later
    • MIT
Arm Zena CSS
  • Solution design
  • View page source
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Solution design

Platform architecture

  • Components
  • Integration
  • Boot process

Security and firmware services

  • Secure Services
  • Secure Firmware Update
  • RSE image encryption
  • Arm Cryptographic Extension

Safety and monitoring

  • Platform Fault Detection Interface (PFDI)
  • Safety Status Unit (SSU)
  • Fault Management Unit (FMU)
  • Software Built-In Self-Test Controller (SBISTC)
  • Transient Fault Protection (TFP) for Application Processor
  • Reliability, Availability, and Serviceability
  • System Monitoring Control Framework (SMCF)
  • Safety Boot

Runtime and compliance

  • Power and performance control
  • Heterogeneous Inter-Processor Communication (HIPC)
  • Arm SystemReady Devicetree
  • Validation
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