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+Glossary
+========
+
+This glossary provides definitions for terms and abbreviations used in the TF-A
+documentation.
+
+You can find additional definitions in the `Arm Glossary`_.
+
+.. glossary::
+   :sorted:
+
+   AArch32
+      32-bit execution state of the ARMv8 ISA
+
+   AArch64
+      64-bit execution state of the ARMv8 ISA
+
+   AMU
+      Activity Monitor Unit, a hardware monitoring unit introduced by FEAT_AMUv1
+      that exposes CPU core runtime metrics as a set of counter registers.
+
+   API
+      Application Programming Interface
+
+   AT
+      Address Translation
+
+   BTI
+      Branch Target Identification. An Armv8.5 extension providing additional
+      control flow integrity around indirect branches and their targets.
+
+   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.
+
+   DCE
+      DRTM Configuration Environment
+
+   D-CRTM
+      Dynamic Code Root of Trust for Measurement
+
+   DLME
+      Dynamically Launched Measured Environment
+
+   DRTM
+      Dynamic Root of Trust for Measurement
+
+   DS-5
+      Arm Development Studio 5
+
+   DSU
+      DynamIQ Shared Unit
+
+   DT
+      Device Tree
+
+   DTB
+      Device Tree Blob
+
+   EL
+      Exception Level
+
+   EHF
+      Exception Handling Framework
+
+   FCONF
+      Firmware Configuration Framework
+
+   FDT
+      Flattened Device Tree
+
+   FF-A
+      Firmware Framework for Arm A-profile
+
+   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.
+
+   LSP
+      A logical secure partition managed by SPM
+
+   MMU
+      Memory Management Unit
+
+   MPAM
+      Memory Partitioning And Monitoring. An optional Armv8.4 extension.
+
+   MPMM
+     Maximum Power Mitigation Mechanism, an optional power management mechanism
+     supported by some Arm Armv9-A cores.
+
+   MPIDR
+      Multiprocessor Affinity Register
+
+   MTE
+      Memory Tagging Extension. An optional Armv8.5 extension that enables
+      hardware-assisted memory tagging.
+
+   OEN
+      Owning Entity Number
+
+   OP-TEE
+      Open Portable Trusted Execution Environment. An example of a :term:`TEE`
+
+   OTE
+      Open-source Trusted Execution Environment
+
+   PDD
+      Platform Design Document
+
+   PAUTH
+      Pointer Authentication. An optional extension introduced in Armv8.3.
+
+   PMF
+      Performance Measurement Framework
+
+   PSA
+      Platform Security Architecture
+
+   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
+      :term:`SMC` Calling Convention
+
+   SoC
+      System on Chip
+
+   SP
+      Secure Partition
+
+   SPD
+      Secure Payload Dispatcher
+
+   SPM
+      Secure Partition Manager
+
+   SSBS
+      Speculative Store Bypass Safe. Introduced in Armv8.5, this configuration
+      bit can be set by software to allow or prevent the hardware from
+      performing speculative operations.
+
+   SVE
+      Scalable Vector Extension
+
+   TBB
+      Trusted Board Boot
+
+   TBBR
+      Trusted Board Boot Requirements
+
+   TCB
+      Trusted Compute Base
+
+   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.
+
+   TRNG
+      True Randon Number Generator (hardware based)
+
+   TSP
+      Test Secure Payload
+
+   TZC
+      TrustZone Controller
+
+   UBSAN
+      Undefined Behavior Sanitizer
+
+   UEFI
+      Unified Extensible Firmware Interface
+
+   WDOG
+      Watchdog
+
+   XLAT
+      Translation (abbr.). For example, "XLAT table".
+
+.. _`Arm Glossary`: https://developer.arm.com/support/arm-glossary