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 43*50a43b0fSManish V Badarkhe DCE 44*50a43b0fSManish V Badarkhe DRTM Configuration Environment 45*50a43b0fSManish V Badarkhe 46*50a43b0fSManish V Badarkhe D-CRTM 47*50a43b0fSManish V Badarkhe Dynamic Code Root of Trust for Measurement 48*50a43b0fSManish V Badarkhe 49*50a43b0fSManish V Badarkhe DLME 50*50a43b0fSManish V Badarkhe Dynamically Launched Measured Environment 51*50a43b0fSManish V Badarkhe 52*50a43b0fSManish V Badarkhe DRTM 53*50a43b0fSManish V Badarkhe Dynamic Root of Trust for Measurement 54*50a43b0fSManish V Badarkhe 558f62ca7bSPaul Beesley DS-5 568f62ca7bSPaul Beesley Arm Development Studio 5 578f62ca7bSPaul Beesley 58ff2d38c2SPaul Beesley DSU 59ff2d38c2SPaul Beesley DynamIQ Shared Unit 60ff2d38c2SPaul Beesley 618f62ca7bSPaul Beesley DT 628f62ca7bSPaul Beesley Device Tree 638f62ca7bSPaul Beesley 64326150b9SLouis Mayencourt DTB 65326150b9SLouis Mayencourt Device Tree Blob 66326150b9SLouis Mayencourt 678f62ca7bSPaul Beesley EL 688f62ca7bSPaul Beesley Exception Level 698f62ca7bSPaul Beesley 708f62ca7bSPaul Beesley EHF 718f62ca7bSPaul Beesley Exception Handling Framework 728f62ca7bSPaul Beesley 73326150b9SLouis Mayencourt FCONF 74326150b9SLouis Mayencourt Firmware Configuration Framework 75326150b9SLouis Mayencourt 768f62ca7bSPaul Beesley FDT 778f62ca7bSPaul Beesley Flattened Device Tree 788f62ca7bSPaul Beesley 798a5bd3cfSOlivier Deprez FF-A 808a5bd3cfSOlivier Deprez Firmware Framework for Arm A-profile 81662af36dSJ-Alves 828f62ca7bSPaul Beesley FIP 838f62ca7bSPaul Beesley Firmware Image Package 848f62ca7bSPaul Beesley 858f62ca7bSPaul Beesley FVP 868f62ca7bSPaul Beesley Fixed Virtual Platform 878f62ca7bSPaul Beesley 888f62ca7bSPaul Beesley FWU 898f62ca7bSPaul Beesley FirmWare Update 908f62ca7bSPaul Beesley 918f62ca7bSPaul Beesley GIC 928f62ca7bSPaul Beesley Generic Interrupt Controller 938f62ca7bSPaul Beesley 948f62ca7bSPaul Beesley ISA 958f62ca7bSPaul Beesley Instruction Set Architecture 968f62ca7bSPaul Beesley 978f62ca7bSPaul Beesley Linaro 988f62ca7bSPaul Beesley A collaborative engineering organization consolidating 998f62ca7bSPaul Beesley and optimizing open source software and tools for the Arm architecture. 1008f62ca7bSPaul Beesley 1018f62ca7bSPaul Beesley MMU 1028f62ca7bSPaul Beesley Memory Management Unit 1038f62ca7bSPaul Beesley 1048f62ca7bSPaul Beesley MPAM 1058f62ca7bSPaul Beesley Memory Partitioning And Monitoring. An optional Armv8.4 extension. 1068f62ca7bSPaul Beesley 10768120783SChris Kay MPMM 10868120783SChris Kay Maximum Power Mitigation Mechanism, an optional power management mechanism 10968120783SChris Kay supported by some Arm Armv9-A cores. 11068120783SChris Kay 1118f62ca7bSPaul Beesley MPIDR 1128f62ca7bSPaul Beesley Multiprocessor Affinity Register 1138f62ca7bSPaul Beesley 114ff2d38c2SPaul Beesley MTE 115ff2d38c2SPaul Beesley Memory Tagging Extension. An optional Armv8.5 extension that enables 116ff2d38c2SPaul Beesley hardware-assisted memory tagging. 117ff2d38c2SPaul Beesley 1188f62ca7bSPaul Beesley OEN 1198f62ca7bSPaul Beesley Owning Entity Number 1208f62ca7bSPaul Beesley 1218f62ca7bSPaul Beesley OP-TEE 1228f62ca7bSPaul Beesley Open Portable Trusted Execution Environment. An example of a :term:`TEE` 1238f62ca7bSPaul Beesley 1248f62ca7bSPaul Beesley OTE 1258f62ca7bSPaul Beesley Open-source Trusted Execution Environment 1268f62ca7bSPaul Beesley 1278f62ca7bSPaul Beesley PDD 1288f62ca7bSPaul Beesley Platform Design Document 1298f62ca7bSPaul Beesley 130ff2d38c2SPaul Beesley PAUTH 131ff2d38c2SPaul Beesley Pointer Authentication. An optional extension introduced in Armv8.3. 132ff2d38c2SPaul Beesley 1338f62ca7bSPaul Beesley PMF 1348f62ca7bSPaul Beesley Performance Measurement Framework 1358f62ca7bSPaul Beesley 136662af36dSJ-Alves PSA 137662af36dSJ-Alves Platform Security Architecture 138662af36dSJ-Alves 1398f62ca7bSPaul Beesley PSCI 1408f62ca7bSPaul Beesley Power State Coordination Interface 1418f62ca7bSPaul Beesley 1428f62ca7bSPaul Beesley RAS 1438f62ca7bSPaul Beesley Reliability, Availability, and Serviceability extensions. A mandatory 1448f62ca7bSPaul Beesley extension for the Armv8.2 architecture and later. An optional extension to 1458f62ca7bSPaul Beesley the base Armv8 architecture. 1468f62ca7bSPaul Beesley 1478f62ca7bSPaul Beesley ROT 1488f62ca7bSPaul Beesley Root of Trust 1498f62ca7bSPaul Beesley 1508f62ca7bSPaul Beesley SCMI 1518f62ca7bSPaul Beesley System Control and Management Interface 1528f62ca7bSPaul Beesley 1538f62ca7bSPaul Beesley SCP 1548f62ca7bSPaul Beesley System Control Processor 1558f62ca7bSPaul Beesley 1568f62ca7bSPaul Beesley SDEI 1578f62ca7bSPaul Beesley Software Delegated Exception Interface 1588f62ca7bSPaul Beesley 1598f62ca7bSPaul Beesley SDS 1608f62ca7bSPaul Beesley Shared Data Storage 1618f62ca7bSPaul Beesley 1628f62ca7bSPaul Beesley SEA 1638f62ca7bSPaul Beesley Synchronous External Abort 1648f62ca7bSPaul Beesley 1658f62ca7bSPaul Beesley SiP 1668f62ca7bSPaul Beesley SIP 1678f62ca7bSPaul Beesley Silicon Provider 1688f62ca7bSPaul Beesley 1698f62ca7bSPaul Beesley SMC 1708f62ca7bSPaul Beesley Secure Monitor Call 1718f62ca7bSPaul Beesley 1728f62ca7bSPaul Beesley SMCCC 1738f62ca7bSPaul Beesley :term:`SMC` Calling Convention 1748f62ca7bSPaul Beesley 1758f62ca7bSPaul Beesley SoC 1768f62ca7bSPaul Beesley System on Chip 1778f62ca7bSPaul Beesley 1788f62ca7bSPaul Beesley SP 1798f62ca7bSPaul Beesley Secure Partition 1808f62ca7bSPaul Beesley 1818f62ca7bSPaul Beesley SPD 1828f62ca7bSPaul Beesley Secure Payload Dispatcher 1838f62ca7bSPaul Beesley 1848f62ca7bSPaul Beesley SPM 1858f62ca7bSPaul Beesley Secure Partition Manager 1868f62ca7bSPaul Beesley 187ff2d38c2SPaul Beesley SSBS 188ff2d38c2SPaul Beesley Speculative Store Bypass Safe. Introduced in Armv8.5, this configuration 189ff2d38c2SPaul Beesley bit can be set by software to allow or prevent the hardware from 190ff2d38c2SPaul Beesley performing speculative operations. 191ff2d38c2SPaul Beesley 1928f62ca7bSPaul Beesley SVE 1938f62ca7bSPaul Beesley Scalable Vector Extension 1948f62ca7bSPaul Beesley 1958f62ca7bSPaul Beesley TBB 1968f62ca7bSPaul Beesley Trusted Board Boot 1978f62ca7bSPaul Beesley 1988f62ca7bSPaul Beesley TBBR 1998f62ca7bSPaul Beesley Trusted Board Boot Requirements 2008f62ca7bSPaul Beesley 201*50a43b0fSManish V Badarkhe TCB 202*50a43b0fSManish V Badarkhe Trusted Compute Base 203*50a43b0fSManish V Badarkhe 2048f62ca7bSPaul Beesley TEE 2058f62ca7bSPaul Beesley Trusted Execution Environment 2068f62ca7bSPaul Beesley 2078f62ca7bSPaul Beesley TF-A 2088f62ca7bSPaul Beesley Trusted Firmware-A 2098f62ca7bSPaul Beesley 2108f62ca7bSPaul Beesley TF-M 2118f62ca7bSPaul Beesley Trusted Firmware-M 2128f62ca7bSPaul Beesley 2138f62ca7bSPaul Beesley TLB 2148f62ca7bSPaul Beesley Translation Lookaside Buffer 2158f62ca7bSPaul Beesley 2168f62ca7bSPaul Beesley TLK 2178f62ca7bSPaul Beesley Trusted Little Kernel. A Trusted OS from NVIDIA. 2188f62ca7bSPaul Beesley 2197dfb9911SJimmy Brisson TRNG 2207dfb9911SJimmy Brisson True Randon Number Generator (hardware based) 2217dfb9911SJimmy Brisson 2228f62ca7bSPaul Beesley TSP 2238f62ca7bSPaul Beesley Test Secure Payload 2248f62ca7bSPaul Beesley 2258f62ca7bSPaul Beesley TZC 2268f62ca7bSPaul Beesley TrustZone Controller 2278f62ca7bSPaul Beesley 228ff2d38c2SPaul Beesley UBSAN 229ff2d38c2SPaul Beesley Undefined Behavior Sanitizer 230ff2d38c2SPaul Beesley 2318f62ca7bSPaul Beesley UEFI 2328f62ca7bSPaul Beesley Unified Extensible Firmware Interface 2338f62ca7bSPaul Beesley 2348f62ca7bSPaul Beesley WDOG 2358f62ca7bSPaul Beesley Watchdog 2368f62ca7bSPaul Beesley 2378f62ca7bSPaul Beesley XLAT 2388f62ca7bSPaul Beesley Translation (abbr.). For example, "XLAT table". 2398f62ca7bSPaul Beesley 2408f62ca7bSPaul Beesley.. _`Arm Glossary`: https://developer.arm.com/support/arm-glossary 241