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 4350a43b0fSManish V Badarkhe DCE 4450a43b0fSManish V Badarkhe DRTM Configuration Environment 4550a43b0fSManish V Badarkhe 4650a43b0fSManish V Badarkhe D-CRTM 4750a43b0fSManish V Badarkhe Dynamic Code Root of Trust for Measurement 4850a43b0fSManish V Badarkhe 4950a43b0fSManish V Badarkhe DLME 5050a43b0fSManish V Badarkhe Dynamically Launched Measured Environment 5150a43b0fSManish V Badarkhe 5250a43b0fSManish V Badarkhe DRTM 5350a43b0fSManish V Badarkhe Dynamic Root of Trust for Measurement 5450a43b0fSManish 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 73e5d9b6f0SSona Mathew ERRATA_ABI 74e5d9b6f0SSona Mathew Errata management firmware interface 75e5d9b6f0SSona Mathew 76326150b9SLouis Mayencourt FCONF 77326150b9SLouis Mayencourt Firmware Configuration Framework 78326150b9SLouis Mayencourt 798f62ca7bSPaul Beesley FDT 808f62ca7bSPaul Beesley Flattened Device Tree 818f62ca7bSPaul Beesley 828a5bd3cfSOlivier Deprez FF-A 838a5bd3cfSOlivier Deprez Firmware Framework for Arm A-profile 84662af36dSJ-Alves 858f62ca7bSPaul Beesley FIP 868f62ca7bSPaul Beesley Firmware Image Package 878f62ca7bSPaul Beesley 888f62ca7bSPaul Beesley FVP 898f62ca7bSPaul Beesley Fixed Virtual Platform 908f62ca7bSPaul Beesley 918f62ca7bSPaul Beesley FWU 928f62ca7bSPaul Beesley FirmWare Update 938f62ca7bSPaul Beesley 948f62ca7bSPaul Beesley GIC 958f62ca7bSPaul Beesley Generic Interrupt Controller 968f62ca7bSPaul Beesley 978f62ca7bSPaul Beesley ISA 988f62ca7bSPaul Beesley Instruction Set Architecture 998f62ca7bSPaul Beesley 1008f62ca7bSPaul Beesley Linaro 1018f62ca7bSPaul Beesley A collaborative engineering organization consolidating 1028f62ca7bSPaul Beesley and optimizing open source software and tools for the Arm architecture. 1038f62ca7bSPaul Beesley 10420155112SShruti Gupta LSP 10520155112SShruti Gupta A logical secure partition managed by SPM 10620155112SShruti Gupta 1078f62ca7bSPaul Beesley MMU 1088f62ca7bSPaul Beesley Memory Management Unit 1098f62ca7bSPaul Beesley 1108f62ca7bSPaul Beesley MPAM 1118f62ca7bSPaul Beesley Memory Partitioning And Monitoring. An optional Armv8.4 extension. 1128f62ca7bSPaul Beesley 11368120783SChris Kay MPMM 11468120783SChris Kay Maximum Power Mitigation Mechanism, an optional power management mechanism 11568120783SChris Kay supported by some Arm Armv9-A cores. 11668120783SChris Kay 1178f62ca7bSPaul Beesley MPIDR 1188f62ca7bSPaul Beesley Multiprocessor Affinity Register 1198f62ca7bSPaul Beesley 120ff2d38c2SPaul Beesley MTE 121ff2d38c2SPaul Beesley Memory Tagging Extension. An optional Armv8.5 extension that enables 122ff2d38c2SPaul Beesley hardware-assisted memory tagging. 123ff2d38c2SPaul Beesley 1248f62ca7bSPaul Beesley OEN 1258f62ca7bSPaul Beesley Owning Entity Number 1268f62ca7bSPaul Beesley 1278f62ca7bSPaul Beesley OP-TEE 1288f62ca7bSPaul Beesley Open Portable Trusted Execution Environment. An example of a :term:`TEE` 1298f62ca7bSPaul Beesley 1308f62ca7bSPaul Beesley OTE 1318f62ca7bSPaul Beesley Open-source Trusted Execution Environment 1328f62ca7bSPaul Beesley 1338f62ca7bSPaul Beesley PDD 1348f62ca7bSPaul Beesley Platform Design Document 1358f62ca7bSPaul Beesley 136ff2d38c2SPaul Beesley PAUTH 137ff2d38c2SPaul Beesley Pointer Authentication. An optional extension introduced in Armv8.3. 138ff2d38c2SPaul Beesley 1398f62ca7bSPaul Beesley PMF 1408f62ca7bSPaul Beesley Performance Measurement Framework 1418f62ca7bSPaul Beesley 142662af36dSJ-Alves PSA 143662af36dSJ-Alves Platform Security Architecture 144662af36dSJ-Alves 145*34bb883aSManish V Badarkhe PSR 146*34bb883aSManish V Badarkhe Platform Security Requirements 147*34bb883aSManish V Badarkhe 1488f62ca7bSPaul Beesley PSCI 1498f62ca7bSPaul Beesley Power State Coordination Interface 1508f62ca7bSPaul Beesley 1518f62ca7bSPaul Beesley RAS 1528f62ca7bSPaul Beesley Reliability, Availability, and Serviceability extensions. A mandatory 1538f62ca7bSPaul Beesley extension for the Armv8.2 architecture and later. An optional extension to 1548f62ca7bSPaul Beesley the base Armv8 architecture. 1558f62ca7bSPaul Beesley 1568f62ca7bSPaul Beesley ROT 1578f62ca7bSPaul Beesley Root of Trust 1588f62ca7bSPaul Beesley 1598f62ca7bSPaul Beesley SCMI 1608f62ca7bSPaul Beesley System Control and Management Interface 1618f62ca7bSPaul Beesley 1628f62ca7bSPaul Beesley SCP 1638f62ca7bSPaul Beesley System Control Processor 1648f62ca7bSPaul Beesley 1658f62ca7bSPaul Beesley SDEI 1668f62ca7bSPaul Beesley Software Delegated Exception Interface 1678f62ca7bSPaul Beesley 1688f62ca7bSPaul Beesley SDS 1698f62ca7bSPaul Beesley Shared Data Storage 1708f62ca7bSPaul Beesley 1718f62ca7bSPaul Beesley SEA 1728f62ca7bSPaul Beesley Synchronous External Abort 1738f62ca7bSPaul Beesley 1748f62ca7bSPaul Beesley SiP 1758f62ca7bSPaul Beesley SIP 1768f62ca7bSPaul Beesley Silicon Provider 1778f62ca7bSPaul Beesley 1788f62ca7bSPaul Beesley SMC 1798f62ca7bSPaul Beesley Secure Monitor Call 1808f62ca7bSPaul Beesley 1818f62ca7bSPaul Beesley SMCCC 1828f62ca7bSPaul Beesley :term:`SMC` Calling Convention 1838f62ca7bSPaul Beesley 1848f62ca7bSPaul Beesley SoC 1858f62ca7bSPaul Beesley System on Chip 1868f62ca7bSPaul Beesley 1878f62ca7bSPaul Beesley SP 1888f62ca7bSPaul Beesley Secure Partition 1898f62ca7bSPaul Beesley 1908f62ca7bSPaul Beesley SPD 1918f62ca7bSPaul Beesley Secure Payload Dispatcher 1928f62ca7bSPaul Beesley 1938f62ca7bSPaul Beesley SPM 1948f62ca7bSPaul Beesley Secure Partition Manager 1958f62ca7bSPaul Beesley 1967ccefbcaSManish V Badarkhe SRTM 1977ccefbcaSManish V Badarkhe Static Root of Trust for Measurement 1987ccefbcaSManish V Badarkhe 199ff2d38c2SPaul Beesley SSBS 200ff2d38c2SPaul Beesley Speculative Store Bypass Safe. Introduced in Armv8.5, this configuration 201ff2d38c2SPaul Beesley bit can be set by software to allow or prevent the hardware from 202ff2d38c2SPaul Beesley performing speculative operations. 203ff2d38c2SPaul Beesley 2048f62ca7bSPaul Beesley SVE 2058f62ca7bSPaul Beesley Scalable Vector Extension 2068f62ca7bSPaul Beesley 2078f62ca7bSPaul Beesley TBB 2088f62ca7bSPaul Beesley Trusted Board Boot 2098f62ca7bSPaul Beesley 2108f62ca7bSPaul Beesley TBBR 2118f62ca7bSPaul Beesley Trusted Board Boot Requirements 2128f62ca7bSPaul Beesley 21350a43b0fSManish V Badarkhe TCB 21450a43b0fSManish V Badarkhe Trusted Compute Base 21550a43b0fSManish V Badarkhe 2167ccefbcaSManish V Badarkhe TCG 2177ccefbcaSManish V Badarkhe Trusted Computing Group 2187ccefbcaSManish V Badarkhe 2198f62ca7bSPaul Beesley TEE 2208f62ca7bSPaul Beesley Trusted Execution Environment 2218f62ca7bSPaul Beesley 2228f62ca7bSPaul Beesley TF-A 2238f62ca7bSPaul Beesley Trusted Firmware-A 2248f62ca7bSPaul Beesley 2258f62ca7bSPaul Beesley TF-M 2268f62ca7bSPaul Beesley Trusted Firmware-M 2278f62ca7bSPaul Beesley 2288f62ca7bSPaul Beesley TLB 2298f62ca7bSPaul Beesley Translation Lookaside Buffer 2308f62ca7bSPaul Beesley 2318f62ca7bSPaul Beesley TLK 2328f62ca7bSPaul Beesley Trusted Little Kernel. A Trusted OS from NVIDIA. 2338f62ca7bSPaul Beesley 2347ccefbcaSManish V Badarkhe TPM 2357ccefbcaSManish V Badarkhe Trusted Platform Module 2367ccefbcaSManish V Badarkhe 2377dfb9911SJimmy Brisson TRNG 2386fc9c1cdSSandrine Bailleux True Random Number Generator (hardware based) 2397dfb9911SJimmy Brisson 2408f62ca7bSPaul Beesley TSP 2418f62ca7bSPaul Beesley Test Secure Payload 2428f62ca7bSPaul Beesley 2438f62ca7bSPaul Beesley TZC 2448f62ca7bSPaul Beesley TrustZone Controller 2458f62ca7bSPaul Beesley 246ff2d38c2SPaul Beesley UBSAN 247ff2d38c2SPaul Beesley Undefined Behavior Sanitizer 248ff2d38c2SPaul Beesley 2498f62ca7bSPaul Beesley UEFI 2508f62ca7bSPaul Beesley Unified Extensible Firmware Interface 2518f62ca7bSPaul Beesley 2528f62ca7bSPaul Beesley WDOG 2538f62ca7bSPaul Beesley Watchdog 2548f62ca7bSPaul Beesley 2558f62ca7bSPaul Beesley XLAT 2568f62ca7bSPaul Beesley Translation (abbr.). For example, "XLAT table". 2578f62ca7bSPaul Beesley 2588f62ca7bSPaul Beesley.. _`Arm Glossary`: https://developer.arm.com/support/arm-glossary 259