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 438f62ca7bSPaul Beesley DS-5 448f62ca7bSPaul Beesley Arm Development Studio 5 458f62ca7bSPaul Beesley 46ff2d38c2SPaul Beesley DSU 47ff2d38c2SPaul Beesley DynamIQ Shared Unit 48ff2d38c2SPaul Beesley 498f62ca7bSPaul Beesley DT 508f62ca7bSPaul Beesley Device Tree 518f62ca7bSPaul Beesley 52326150b9SLouis Mayencourt DTB 53326150b9SLouis Mayencourt Device Tree Blob 54326150b9SLouis Mayencourt 558f62ca7bSPaul Beesley EL 568f62ca7bSPaul Beesley Exception Level 578f62ca7bSPaul Beesley 588f62ca7bSPaul Beesley EHF 598f62ca7bSPaul Beesley Exception Handling Framework 608f62ca7bSPaul Beesley 61326150b9SLouis Mayencourt FCONF 62326150b9SLouis Mayencourt Firmware Configuration Framework 63326150b9SLouis Mayencourt 648f62ca7bSPaul Beesley FDT 658f62ca7bSPaul Beesley Flattened Device Tree 668f62ca7bSPaul Beesley 678a5bd3cfSOlivier Deprez FF-A 688a5bd3cfSOlivier Deprez Firmware Framework for Arm A-profile 69662af36dSJ-Alves 708f62ca7bSPaul Beesley FIP 718f62ca7bSPaul Beesley Firmware Image Package 728f62ca7bSPaul Beesley 738f62ca7bSPaul Beesley FVP 748f62ca7bSPaul Beesley Fixed Virtual Platform 758f62ca7bSPaul Beesley 768f62ca7bSPaul Beesley FWU 778f62ca7bSPaul Beesley FirmWare Update 788f62ca7bSPaul Beesley 798f62ca7bSPaul Beesley GIC 808f62ca7bSPaul Beesley Generic Interrupt Controller 818f62ca7bSPaul Beesley 828f62ca7bSPaul Beesley ISA 838f62ca7bSPaul Beesley Instruction Set Architecture 848f62ca7bSPaul Beesley 858f62ca7bSPaul Beesley Linaro 868f62ca7bSPaul Beesley A collaborative engineering organization consolidating 878f62ca7bSPaul Beesley and optimizing open source software and tools for the Arm architecture. 888f62ca7bSPaul Beesley 898f62ca7bSPaul Beesley MMU 908f62ca7bSPaul Beesley Memory Management Unit 918f62ca7bSPaul Beesley 928f62ca7bSPaul Beesley MPAM 938f62ca7bSPaul Beesley Memory Partitioning And Monitoring. An optional Armv8.4 extension. 948f62ca7bSPaul Beesley 95*68120783SChris Kay MPMM 96*68120783SChris Kay Maximum Power Mitigation Mechanism, an optional power management mechanism 97*68120783SChris Kay supported by some Arm Armv9-A cores. 98*68120783SChris Kay 998f62ca7bSPaul Beesley MPIDR 1008f62ca7bSPaul Beesley Multiprocessor Affinity Register 1018f62ca7bSPaul Beesley 102ff2d38c2SPaul Beesley MTE 103ff2d38c2SPaul Beesley Memory Tagging Extension. An optional Armv8.5 extension that enables 104ff2d38c2SPaul Beesley hardware-assisted memory tagging. 105ff2d38c2SPaul Beesley 1068f62ca7bSPaul Beesley OEN 1078f62ca7bSPaul Beesley Owning Entity Number 1088f62ca7bSPaul Beesley 1098f62ca7bSPaul Beesley OP-TEE 1108f62ca7bSPaul Beesley Open Portable Trusted Execution Environment. An example of a :term:`TEE` 1118f62ca7bSPaul Beesley 1128f62ca7bSPaul Beesley OTE 1138f62ca7bSPaul Beesley Open-source Trusted Execution Environment 1148f62ca7bSPaul Beesley 1158f62ca7bSPaul Beesley PDD 1168f62ca7bSPaul Beesley Platform Design Document 1178f62ca7bSPaul Beesley 118ff2d38c2SPaul Beesley PAUTH 119ff2d38c2SPaul Beesley Pointer Authentication. An optional extension introduced in Armv8.3. 120ff2d38c2SPaul Beesley 1218f62ca7bSPaul Beesley PMF 1228f62ca7bSPaul Beesley Performance Measurement Framework 1238f62ca7bSPaul Beesley 124662af36dSJ-Alves PSA 125662af36dSJ-Alves Platform Security Architecture 126662af36dSJ-Alves 1278f62ca7bSPaul Beesley PSCI 1288f62ca7bSPaul Beesley Power State Coordination Interface 1298f62ca7bSPaul Beesley 1308f62ca7bSPaul Beesley RAS 1318f62ca7bSPaul Beesley Reliability, Availability, and Serviceability extensions. A mandatory 1328f62ca7bSPaul Beesley extension for the Armv8.2 architecture and later. An optional extension to 1338f62ca7bSPaul Beesley the base Armv8 architecture. 1348f62ca7bSPaul Beesley 1358f62ca7bSPaul Beesley ROT 1368f62ca7bSPaul Beesley Root of Trust 1378f62ca7bSPaul Beesley 1388f62ca7bSPaul Beesley SCMI 1398f62ca7bSPaul Beesley System Control and Management Interface 1408f62ca7bSPaul Beesley 1418f62ca7bSPaul Beesley SCP 1428f62ca7bSPaul Beesley System Control Processor 1438f62ca7bSPaul Beesley 1448f62ca7bSPaul Beesley SDEI 1458f62ca7bSPaul Beesley Software Delegated Exception Interface 1468f62ca7bSPaul Beesley 1478f62ca7bSPaul Beesley SDS 1488f62ca7bSPaul Beesley Shared Data Storage 1498f62ca7bSPaul Beesley 1508f62ca7bSPaul Beesley SEA 1518f62ca7bSPaul Beesley Synchronous External Abort 1528f62ca7bSPaul Beesley 1538f62ca7bSPaul Beesley SiP 1548f62ca7bSPaul Beesley SIP 1558f62ca7bSPaul Beesley Silicon Provider 1568f62ca7bSPaul Beesley 1578f62ca7bSPaul Beesley SMC 1588f62ca7bSPaul Beesley Secure Monitor Call 1598f62ca7bSPaul Beesley 1608f62ca7bSPaul Beesley SMCCC 1618f62ca7bSPaul Beesley :term:`SMC` Calling Convention 1628f62ca7bSPaul Beesley 1638f62ca7bSPaul Beesley SoC 1648f62ca7bSPaul Beesley System on Chip 1658f62ca7bSPaul Beesley 1668f62ca7bSPaul Beesley SP 1678f62ca7bSPaul Beesley Secure Partition 1688f62ca7bSPaul Beesley 1698f62ca7bSPaul Beesley SPD 1708f62ca7bSPaul Beesley Secure Payload Dispatcher 1718f62ca7bSPaul Beesley 1728f62ca7bSPaul Beesley SPM 1738f62ca7bSPaul Beesley Secure Partition Manager 1748f62ca7bSPaul Beesley 175ff2d38c2SPaul Beesley SSBS 176ff2d38c2SPaul Beesley Speculative Store Bypass Safe. Introduced in Armv8.5, this configuration 177ff2d38c2SPaul Beesley bit can be set by software to allow or prevent the hardware from 178ff2d38c2SPaul Beesley performing speculative operations. 179ff2d38c2SPaul Beesley 1808f62ca7bSPaul Beesley SVE 1818f62ca7bSPaul Beesley Scalable Vector Extension 1828f62ca7bSPaul Beesley 1838f62ca7bSPaul Beesley TBB 1848f62ca7bSPaul Beesley Trusted Board Boot 1858f62ca7bSPaul Beesley 1868f62ca7bSPaul Beesley TBBR 1878f62ca7bSPaul Beesley Trusted Board Boot Requirements 1888f62ca7bSPaul Beesley 1898f62ca7bSPaul Beesley TEE 1908f62ca7bSPaul Beesley Trusted Execution Environment 1918f62ca7bSPaul Beesley 1928f62ca7bSPaul Beesley TF-A 1938f62ca7bSPaul Beesley Trusted Firmware-A 1948f62ca7bSPaul Beesley 1958f62ca7bSPaul Beesley TF-M 1968f62ca7bSPaul Beesley Trusted Firmware-M 1978f62ca7bSPaul Beesley 1988f62ca7bSPaul Beesley TLB 1998f62ca7bSPaul Beesley Translation Lookaside Buffer 2008f62ca7bSPaul Beesley 2018f62ca7bSPaul Beesley TLK 2028f62ca7bSPaul Beesley Trusted Little Kernel. A Trusted OS from NVIDIA. 2038f62ca7bSPaul Beesley 2047dfb9911SJimmy Brisson TRNG 2057dfb9911SJimmy Brisson True Randon Number Generator (hardware based) 2067dfb9911SJimmy Brisson 2078f62ca7bSPaul Beesley TSP 2088f62ca7bSPaul Beesley Test Secure Payload 2098f62ca7bSPaul Beesley 2108f62ca7bSPaul Beesley TZC 2118f62ca7bSPaul Beesley TrustZone Controller 2128f62ca7bSPaul Beesley 213ff2d38c2SPaul Beesley UBSAN 214ff2d38c2SPaul Beesley Undefined Behavior Sanitizer 215ff2d38c2SPaul Beesley 2168f62ca7bSPaul Beesley UEFI 2178f62ca7bSPaul Beesley Unified Extensible Firmware Interface 2188f62ca7bSPaul Beesley 2198f62ca7bSPaul Beesley WDOG 2208f62ca7bSPaul Beesley Watchdog 2218f62ca7bSPaul Beesley 2228f62ca7bSPaul Beesley XLAT 2238f62ca7bSPaul Beesley Translation (abbr.). For example, "XLAT table". 2248f62ca7bSPaul Beesley 2258f62ca7bSPaul Beesley.. _`Arm Glossary`: https://developer.arm.com/support/arm-glossary 226