Glossary¶
This glossary provides definitions for terms and abbreviations used in the TF-A documentation.
You can find additional definitions in the Arm Glossary.
- AArch32
32-bit execution state of the ARMv8 ISA
- AArch64
64-bit execution state of the ARMv8 ISA
- API
Application Programming Interface
- CoT
- COT
Chain of Trust
- CSS
Compute Sub-System
- CVE
Common Vulnerabilities and Exposures. A CVE document is commonly used to describe a publicly-known security vulnerability.
- DS-5
Arm Development Studio 5
- DT
Device Tree
- EHF
Exception Handling Framework
- EL
Exception Level
- FDT
Flattened Device Tree
- FIP
Firmware Image Package
- FVP
Fixed Virtual Platform
- FWU
FirmWare Update
- GIC
Generic Interrupt Controller
- ISA
Instruction Set Architecture
- Linaro
A collaborative engineering organization consolidating and optimizing open source software and tools for the Arm architecture.
- MMU
Memory Management Unit
- MPAM
Memory Partitioning And Monitoring. An optional Armv8.4 extension.
- MPIDR
Multiprocessor Affinity Register
- OEN
Owning Entity Number
- OP-TEE
Open Portable Trusted Execution Environment. An example of a TEE
- OTE
Open-source Trusted Execution Environment
- PDD
Platform Design Document
- PMF
Performance Measurement Framework
- PSCI
Power State Coordination Interface
- RAS
Reliability, Availability, and Serviceability extensions. A mandatory extension for the Armv8.2 architecture and later. An optional extension to the base Armv8 architecture.
- ROT
Root of Trust
- SCMI
System Control and Management Interface
- SCP
System Control Processor
- SDEI
Software Delegated Exception Interface
- SDS
Shared Data Storage
- SEA
Synchronous External Abort
- SiP
- SIP
Silicon Provider
- SMC
Secure Monitor Call
- SMCCC
SMC Calling Convention
- SoC
System on Chip
- SP
Secure Partition
- SPCI
Secure Partition Client Interface
- SPD
Secure Payload Dispatcher
- SPM
Secure Partition Manager
- SVE
Scalable Vector Extension
- TBB
Trusted Board Boot
- TBBR
Trusted Board Boot Requirements
- TEE
Trusted Execution Environment
- TF-A
Trusted Firmware-A
- TF-M
Trusted Firmware-M
- TLB
Translation Lookaside Buffer
- TLK
Trusted Little Kernel. A Trusted OS from NVIDIA.
- TSP
Test Secure Payload
- TZC
TrustZone Controller
- UEFI
Unified Extensible Firmware Interface
- WDOG
Watchdog
- XLAT
Translation (abbr.). For example, “XLAT table”.