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 89*20155112SShruti Gupta LSP 90*20155112SShruti Gupta A logical secure partition managed by SPM 91*20155112SShruti Gupta 928f62ca7bSPaul Beesley MMU 938f62ca7bSPaul Beesley Memory Management Unit 948f62ca7bSPaul Beesley 958f62ca7bSPaul Beesley MPAM 968f62ca7bSPaul Beesley Memory Partitioning And Monitoring. An optional Armv8.4 extension. 978f62ca7bSPaul Beesley 9868120783SChris Kay MPMM 9968120783SChris Kay Maximum Power Mitigation Mechanism, an optional power management mechanism 10068120783SChris Kay supported by some Arm Armv9-A cores. 10168120783SChris Kay 1028f62ca7bSPaul Beesley MPIDR 1038f62ca7bSPaul Beesley Multiprocessor Affinity Register 1048f62ca7bSPaul Beesley 105ff2d38c2SPaul Beesley MTE 106ff2d38c2SPaul Beesley Memory Tagging Extension. An optional Armv8.5 extension that enables 107ff2d38c2SPaul Beesley hardware-assisted memory tagging. 108ff2d38c2SPaul Beesley 1098f62ca7bSPaul Beesley OEN 1108f62ca7bSPaul Beesley Owning Entity Number 1118f62ca7bSPaul Beesley 1128f62ca7bSPaul Beesley OP-TEE 1138f62ca7bSPaul Beesley Open Portable Trusted Execution Environment. An example of a :term:`TEE` 1148f62ca7bSPaul Beesley 1158f62ca7bSPaul Beesley OTE 1168f62ca7bSPaul Beesley Open-source Trusted Execution Environment 1178f62ca7bSPaul Beesley 1188f62ca7bSPaul Beesley PDD 1198f62ca7bSPaul Beesley Platform Design Document 1208f62ca7bSPaul Beesley 121ff2d38c2SPaul Beesley PAUTH 122ff2d38c2SPaul Beesley Pointer Authentication. An optional extension introduced in Armv8.3. 123ff2d38c2SPaul Beesley 1248f62ca7bSPaul Beesley PMF 1258f62ca7bSPaul Beesley Performance Measurement Framework 1268f62ca7bSPaul Beesley 127662af36dSJ-Alves PSA 128662af36dSJ-Alves Platform Security Architecture 129662af36dSJ-Alves 1308f62ca7bSPaul Beesley PSCI 1318f62ca7bSPaul Beesley Power State Coordination Interface 1328f62ca7bSPaul Beesley 1338f62ca7bSPaul Beesley RAS 1348f62ca7bSPaul Beesley Reliability, Availability, and Serviceability extensions. A mandatory 1358f62ca7bSPaul Beesley extension for the Armv8.2 architecture and later. An optional extension to 1368f62ca7bSPaul Beesley the base Armv8 architecture. 1378f62ca7bSPaul Beesley 1388f62ca7bSPaul Beesley ROT 1398f62ca7bSPaul Beesley Root of Trust 1408f62ca7bSPaul Beesley 1418f62ca7bSPaul Beesley SCMI 1428f62ca7bSPaul Beesley System Control and Management Interface 1438f62ca7bSPaul Beesley 1448f62ca7bSPaul Beesley SCP 1458f62ca7bSPaul Beesley System Control Processor 1468f62ca7bSPaul Beesley 1478f62ca7bSPaul Beesley SDEI 1488f62ca7bSPaul Beesley Software Delegated Exception Interface 1498f62ca7bSPaul Beesley 1508f62ca7bSPaul Beesley SDS 1518f62ca7bSPaul Beesley Shared Data Storage 1528f62ca7bSPaul Beesley 1538f62ca7bSPaul Beesley SEA 1548f62ca7bSPaul Beesley Synchronous External Abort 1558f62ca7bSPaul Beesley 1568f62ca7bSPaul Beesley SiP 1578f62ca7bSPaul Beesley SIP 1588f62ca7bSPaul Beesley Silicon Provider 1598f62ca7bSPaul Beesley 1608f62ca7bSPaul Beesley SMC 1618f62ca7bSPaul Beesley Secure Monitor Call 1628f62ca7bSPaul Beesley 1638f62ca7bSPaul Beesley SMCCC 1648f62ca7bSPaul Beesley :term:`SMC` Calling Convention 1658f62ca7bSPaul Beesley 1668f62ca7bSPaul Beesley SoC 1678f62ca7bSPaul Beesley System on Chip 1688f62ca7bSPaul Beesley 1698f62ca7bSPaul Beesley SP 1708f62ca7bSPaul Beesley Secure Partition 1718f62ca7bSPaul Beesley 1728f62ca7bSPaul Beesley SPD 1738f62ca7bSPaul Beesley Secure Payload Dispatcher 1748f62ca7bSPaul Beesley 1758f62ca7bSPaul Beesley SPM 1768f62ca7bSPaul Beesley Secure Partition Manager 1778f62ca7bSPaul Beesley 178ff2d38c2SPaul Beesley SSBS 179ff2d38c2SPaul Beesley Speculative Store Bypass Safe. Introduced in Armv8.5, this configuration 180ff2d38c2SPaul Beesley bit can be set by software to allow or prevent the hardware from 181ff2d38c2SPaul Beesley performing speculative operations. 182ff2d38c2SPaul Beesley 1838f62ca7bSPaul Beesley SVE 1848f62ca7bSPaul Beesley Scalable Vector Extension 1858f62ca7bSPaul Beesley 1868f62ca7bSPaul Beesley TBB 1878f62ca7bSPaul Beesley Trusted Board Boot 1888f62ca7bSPaul Beesley 1898f62ca7bSPaul Beesley TBBR 1908f62ca7bSPaul Beesley Trusted Board Boot Requirements 1918f62ca7bSPaul Beesley 1928f62ca7bSPaul Beesley TEE 1938f62ca7bSPaul Beesley Trusted Execution Environment 1948f62ca7bSPaul Beesley 1958f62ca7bSPaul Beesley TF-A 1968f62ca7bSPaul Beesley Trusted Firmware-A 1978f62ca7bSPaul Beesley 1988f62ca7bSPaul Beesley TF-M 1998f62ca7bSPaul Beesley Trusted Firmware-M 2008f62ca7bSPaul Beesley 2018f62ca7bSPaul Beesley TLB 2028f62ca7bSPaul Beesley Translation Lookaside Buffer 2038f62ca7bSPaul Beesley 2048f62ca7bSPaul Beesley TLK 2058f62ca7bSPaul Beesley Trusted Little Kernel. A Trusted OS from NVIDIA. 2068f62ca7bSPaul Beesley 2077dfb9911SJimmy Brisson TRNG 2087dfb9911SJimmy Brisson True Randon Number Generator (hardware based) 2097dfb9911SJimmy Brisson 2108f62ca7bSPaul Beesley TSP 2118f62ca7bSPaul Beesley Test Secure Payload 2128f62ca7bSPaul Beesley 2138f62ca7bSPaul Beesley TZC 2148f62ca7bSPaul Beesley TrustZone Controller 2158f62ca7bSPaul Beesley 216ff2d38c2SPaul Beesley UBSAN 217ff2d38c2SPaul Beesley Undefined Behavior Sanitizer 218ff2d38c2SPaul Beesley 2198f62ca7bSPaul Beesley UEFI 2208f62ca7bSPaul Beesley Unified Extensible Firmware Interface 2218f62ca7bSPaul Beesley 2228f62ca7bSPaul Beesley WDOG 2238f62ca7bSPaul Beesley Watchdog 2248f62ca7bSPaul Beesley 2258f62ca7bSPaul Beesley XLAT 2268f62ca7bSPaul Beesley Translation (abbr.). For example, "XLAT table". 2278f62ca7bSPaul Beesley 2288f62ca7bSPaul Beesley.. _`Arm Glossary`: https://developer.arm.com/support/arm-glossary 229