18f62ca7bSPaul BeesleyGlossary 28f62ca7bSPaul Beesley======== 38f62ca7bSPaul Beesley 48f62ca7bSPaul BeesleyThis glossary provides definitions for terms and abbreviations used in the TF-A 58f62ca7bSPaul Beesleydocumentation. 68f62ca7bSPaul Beesley 78f62ca7bSPaul BeesleyYou can find additional definitions in the `Arm Glossary`_. 88f62ca7bSPaul Beesley 98f62ca7bSPaul Beesley.. glossary:: 108f62ca7bSPaul Beesley :sorted: 118f62ca7bSPaul Beesley 128f62ca7bSPaul Beesley AArch32 138f62ca7bSPaul Beesley 32-bit execution state of the ARMv8 ISA 148f62ca7bSPaul Beesley 158f62ca7bSPaul Beesley AArch64 168f62ca7bSPaul Beesley 64-bit execution state of the ARMv8 ISA 178f62ca7bSPaul Beesley 189cf75647SChris Kay AMU 199cf75647SChris Kay Activity Monitor Unit, a hardware monitoring unit introduced by FEAT_AMUv1 209cf75647SChris Kay that exposes CPU core runtime metrics as a set of counter registers. 219cf75647SChris Kay 228f62ca7bSPaul Beesley API 238f62ca7bSPaul Beesley Application Programming Interface 248f62ca7bSPaul Beesley 25e008a29aSManish V Badarkhe AT 26e008a29aSManish V Badarkhe Address Translation 27e008a29aSManish V Badarkhe 28ff2d38c2SPaul Beesley BTI 29ff2d38c2SPaul Beesley Branch Target Identification. An Armv8.5 extension providing additional 30ff2d38c2SPaul Beesley control flow integrity around indirect branches and their targets. 31ff2d38c2SPaul Beesley 328f62ca7bSPaul Beesley CoT 338f62ca7bSPaul Beesley COT 348f62ca7bSPaul Beesley Chain of Trust 358f62ca7bSPaul Beesley 368f62ca7bSPaul Beesley CSS 378f62ca7bSPaul Beesley Compute Sub-System 388f62ca7bSPaul Beesley 398f62ca7bSPaul Beesley CVE 408f62ca7bSPaul Beesley Common Vulnerabilities and Exposures. A CVE document is commonly used to 418f62ca7bSPaul Beesley describe a publicly-known security vulnerability. 428f62ca7bSPaul Beesley 43584052c7STamas Ban DICE 44584052c7STamas Ban Device Identifier Composition Engine 45584052c7STamas Ban 4650a43b0fSManish V Badarkhe DCE 4750a43b0fSManish V Badarkhe DRTM Configuration Environment 4850a43b0fSManish V Badarkhe 4950a43b0fSManish V Badarkhe D-CRTM 5050a43b0fSManish V Badarkhe Dynamic Code Root of Trust for Measurement 5150a43b0fSManish V Badarkhe 5250a43b0fSManish V Badarkhe DLME 5350a43b0fSManish V Badarkhe Dynamically Launched Measured Environment 5450a43b0fSManish V Badarkhe 5550a43b0fSManish V Badarkhe DRTM 5650a43b0fSManish V Badarkhe Dynamic Root of Trust for Measurement 5750a43b0fSManish V Badarkhe 58584052c7STamas Ban DPE 59584052c7STamas Ban DICE Protection Environment 60584052c7STamas Ban 618f62ca7bSPaul Beesley DS-5 628f62ca7bSPaul Beesley Arm Development Studio 5 638f62ca7bSPaul Beesley 64ff2d38c2SPaul Beesley DSU 65ff2d38c2SPaul Beesley DynamIQ Shared Unit 66ff2d38c2SPaul Beesley 678f62ca7bSPaul Beesley DT 688f62ca7bSPaul Beesley Device Tree 698f62ca7bSPaul Beesley 70326150b9SLouis Mayencourt DTB 71326150b9SLouis Mayencourt Device Tree Blob 72326150b9SLouis Mayencourt 738f62ca7bSPaul Beesley EL 748f62ca7bSPaul Beesley Exception Level 758f62ca7bSPaul Beesley 768f62ca7bSPaul Beesley EHF 778f62ca7bSPaul Beesley Exception Handling Framework 788f62ca7bSPaul Beesley 79e5d9b6f0SSona Mathew ERRATA_ABI 80e5d9b6f0SSona Mathew Errata management firmware interface 81e5d9b6f0SSona Mathew 82326150b9SLouis Mayencourt FCONF 83326150b9SLouis Mayencourt Firmware Configuration Framework 84326150b9SLouis Mayencourt 858f62ca7bSPaul Beesley FDT 868f62ca7bSPaul Beesley Flattened Device Tree 878f62ca7bSPaul Beesley 888a5bd3cfSOlivier Deprez FF-A 898a5bd3cfSOlivier Deprez Firmware Framework for Arm A-profile 90662af36dSJ-Alves 918f62ca7bSPaul Beesley FIP 928f62ca7bSPaul Beesley Firmware Image Package 938f62ca7bSPaul Beesley 948f62ca7bSPaul Beesley FVP 958f62ca7bSPaul Beesley Fixed Virtual Platform 968f62ca7bSPaul Beesley 978f62ca7bSPaul Beesley FWU 988f62ca7bSPaul Beesley FirmWare Update 998f62ca7bSPaul Beesley 1008f62ca7bSPaul Beesley GIC 1018f62ca7bSPaul Beesley Generic Interrupt Controller 1028f62ca7bSPaul Beesley 103*3849d272STamas Ban HES 104*3849d272STamas Ban Arm CCA Hardware Enforced Security 105*3849d272STamas Ban 1068f62ca7bSPaul Beesley ISA 1078f62ca7bSPaul Beesley Instruction Set Architecture 1088f62ca7bSPaul Beesley 1098f62ca7bSPaul Beesley Linaro 1108f62ca7bSPaul Beesley A collaborative engineering organization consolidating 1118f62ca7bSPaul Beesley and optimizing open source software and tools for the Arm architecture. 1128f62ca7bSPaul Beesley 11320155112SShruti Gupta LSP 11420155112SShruti Gupta A logical secure partition managed by SPM 11520155112SShruti Gupta 1168f62ca7bSPaul Beesley MMU 1178f62ca7bSPaul Beesley Memory Management Unit 1188f62ca7bSPaul Beesley 1198f62ca7bSPaul Beesley MPAM 1208f62ca7bSPaul Beesley Memory Partitioning And Monitoring. An optional Armv8.4 extension. 1218f62ca7bSPaul Beesley 12268120783SChris Kay MPMM 12368120783SChris Kay Maximum Power Mitigation Mechanism, an optional power management mechanism 12468120783SChris Kay supported by some Arm Armv9-A cores. 12568120783SChris Kay 1268f62ca7bSPaul Beesley MPIDR 1278f62ca7bSPaul Beesley Multiprocessor Affinity Register 1288f62ca7bSPaul Beesley 129ff2d38c2SPaul Beesley MTE 130ff2d38c2SPaul Beesley Memory Tagging Extension. An optional Armv8.5 extension that enables 131ff2d38c2SPaul Beesley hardware-assisted memory tagging. 132ff2d38c2SPaul Beesley 1338f62ca7bSPaul Beesley OEN 1348f62ca7bSPaul Beesley Owning Entity Number 1358f62ca7bSPaul Beesley 1368f62ca7bSPaul Beesley OP-TEE 1378f62ca7bSPaul Beesley Open Portable Trusted Execution Environment. An example of a :term:`TEE` 1388f62ca7bSPaul Beesley 1398f62ca7bSPaul Beesley OTE 1408f62ca7bSPaul Beesley Open-source Trusted Execution Environment 1418f62ca7bSPaul Beesley 14207c2d18fSAbhi Singh PCR 14307c2d18fSAbhi Singh Platform Configuration Register 14407c2d18fSAbhi Singh 1458f62ca7bSPaul Beesley PDD 1468f62ca7bSPaul Beesley Platform Design Document 1478f62ca7bSPaul Beesley 148ff2d38c2SPaul Beesley PAUTH 149ff2d38c2SPaul Beesley Pointer Authentication. An optional extension introduced in Armv8.3. 150ff2d38c2SPaul Beesley 1518f62ca7bSPaul Beesley PMF 1528f62ca7bSPaul Beesley Performance Measurement Framework 1538f62ca7bSPaul Beesley 154662af36dSJ-Alves PSA 155662af36dSJ-Alves Platform Security Architecture 156662af36dSJ-Alves 15734bb883aSManish V Badarkhe PSR 15834bb883aSManish V Badarkhe Platform Security Requirements 15934bb883aSManish V Badarkhe 1608f62ca7bSPaul Beesley PSCI 1618f62ca7bSPaul Beesley Power State Coordination Interface 1628f62ca7bSPaul Beesley 1638f62ca7bSPaul Beesley RAS 1648f62ca7bSPaul Beesley Reliability, Availability, and Serviceability extensions. A mandatory 1658f62ca7bSPaul Beesley extension for the Armv8.2 architecture and later. An optional extension to 1668f62ca7bSPaul Beesley the base Armv8 architecture. 1678f62ca7bSPaul Beesley 1688f62ca7bSPaul Beesley ROT 1698f62ca7bSPaul Beesley Root of Trust 1708f62ca7bSPaul Beesley 171*3849d272STamas Ban RSE 172*3849d272STamas Ban Runtime Security Engine 173*3849d272STamas Ban 1748f62ca7bSPaul Beesley SCMI 1758f62ca7bSPaul Beesley System Control and Management Interface 1768f62ca7bSPaul Beesley 1778f62ca7bSPaul Beesley SCP 1788f62ca7bSPaul Beesley System Control Processor 1798f62ca7bSPaul Beesley 1808f62ca7bSPaul Beesley SDEI 1818f62ca7bSPaul Beesley Software Delegated Exception Interface 1828f62ca7bSPaul Beesley 1838f62ca7bSPaul Beesley SDS 1848f62ca7bSPaul Beesley Shared Data Storage 1858f62ca7bSPaul Beesley 1868f62ca7bSPaul Beesley SEA 1878f62ca7bSPaul Beesley Synchronous External Abort 1888f62ca7bSPaul Beesley 1898f62ca7bSPaul Beesley SiP 1908f62ca7bSPaul Beesley SIP 1918f62ca7bSPaul Beesley Silicon Provider 1928f62ca7bSPaul Beesley 1938f62ca7bSPaul Beesley SMC 1948f62ca7bSPaul Beesley Secure Monitor Call 1958f62ca7bSPaul Beesley 1968f62ca7bSPaul Beesley SMCCC 1978f62ca7bSPaul Beesley :term:`SMC` Calling Convention 1988f62ca7bSPaul Beesley 1998f62ca7bSPaul Beesley SoC 2008f62ca7bSPaul Beesley System on Chip 2018f62ca7bSPaul Beesley 2028f62ca7bSPaul Beesley SP 2038f62ca7bSPaul Beesley Secure Partition 2048f62ca7bSPaul Beesley 2058f62ca7bSPaul Beesley SPD 2068f62ca7bSPaul Beesley Secure Payload Dispatcher 2078f62ca7bSPaul Beesley 2088f62ca7bSPaul Beesley SPM 2098f62ca7bSPaul Beesley Secure Partition Manager 2108f62ca7bSPaul Beesley 2117ccefbcaSManish V Badarkhe SRTM 2127ccefbcaSManish V Badarkhe Static Root of Trust for Measurement 2137ccefbcaSManish V Badarkhe 214ff2d38c2SPaul Beesley SSBS 215ff2d38c2SPaul Beesley Speculative Store Bypass Safe. Introduced in Armv8.5, this configuration 216ff2d38c2SPaul Beesley bit can be set by software to allow or prevent the hardware from 217ff2d38c2SPaul Beesley performing speculative operations. 218ff2d38c2SPaul Beesley 2198f62ca7bSPaul Beesley SVE 2208f62ca7bSPaul Beesley Scalable Vector Extension 2218f62ca7bSPaul Beesley 2228f62ca7bSPaul Beesley TBB 2238f62ca7bSPaul Beesley Trusted Board Boot 2248f62ca7bSPaul Beesley 2258f62ca7bSPaul Beesley TBBR 2268f62ca7bSPaul Beesley Trusted Board Boot Requirements 2278f62ca7bSPaul Beesley 22850a43b0fSManish V Badarkhe TCB 22950a43b0fSManish V Badarkhe Trusted Compute Base 23050a43b0fSManish V Badarkhe 2317ccefbcaSManish V Badarkhe TCG 2327ccefbcaSManish V Badarkhe Trusted Computing Group 2337ccefbcaSManish V Badarkhe 2348f62ca7bSPaul Beesley TEE 2358f62ca7bSPaul Beesley Trusted Execution Environment 2368f62ca7bSPaul Beesley 2378f62ca7bSPaul Beesley TF-A 2388f62ca7bSPaul Beesley Trusted Firmware-A 2398f62ca7bSPaul Beesley 2408f62ca7bSPaul Beesley TF-M 2418f62ca7bSPaul Beesley Trusted Firmware-M 2428f62ca7bSPaul Beesley 2438f62ca7bSPaul Beesley TLB 2448f62ca7bSPaul Beesley Translation Lookaside Buffer 2458f62ca7bSPaul Beesley 2468f62ca7bSPaul Beesley TLK 2478f62ca7bSPaul Beesley Trusted Little Kernel. A Trusted OS from NVIDIA. 2488f62ca7bSPaul Beesley 2497ccefbcaSManish V Badarkhe TPM 2507ccefbcaSManish V Badarkhe Trusted Platform Module 2517ccefbcaSManish V Badarkhe 2527dfb9911SJimmy Brisson TRNG 2536fc9c1cdSSandrine Bailleux True Random Number Generator (hardware based) 2547dfb9911SJimmy Brisson 2558f62ca7bSPaul Beesley TSP 2568f62ca7bSPaul Beesley Test Secure Payload 2578f62ca7bSPaul Beesley 2588f62ca7bSPaul Beesley TZC 2598f62ca7bSPaul Beesley TrustZone Controller 2608f62ca7bSPaul Beesley 261ff2d38c2SPaul Beesley UBSAN 262ff2d38c2SPaul Beesley Undefined Behavior Sanitizer 263ff2d38c2SPaul Beesley 2648f62ca7bSPaul Beesley UEFI 2658f62ca7bSPaul Beesley Unified Extensible Firmware Interface 2668f62ca7bSPaul Beesley 2678f62ca7bSPaul Beesley WDOG 2688f62ca7bSPaul Beesley Watchdog 2698f62ca7bSPaul Beesley 2708f62ca7bSPaul Beesley XLAT 2718f62ca7bSPaul Beesley Translation (abbr.). For example, "XLAT table". 2728f62ca7bSPaul Beesley 2738f62ca7bSPaul Beesley.. _`Arm Glossary`: https://developer.arm.com/support/arm-glossary 274