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TF-A currently does not have any TPM2 driver for extending measurements into a discrete TPM chip. In TPM-based attestation scheme, measurements are just stored into a TCG-compatible event log buffer in secure memory. In light of the fact that Event Log measurements are taken by BL1 and BL2, we need to trust these components to store genuine measurements, and the Generic Threat Model always mitigates against attacks on these components, therefore, there is no explicit document for the Measured Boot threat model at this time is needed. Change-Id: I41b037b2f5956d327b53cd834345e5aefdcfb5ef Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
252 lines
4.4 KiB
ReStructuredText
252 lines
4.4 KiB
ReStructuredText
Glossary
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========
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This glossary provides definitions for terms and abbreviations used in the TF-A
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documentation.
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You can find additional definitions in the `Arm Glossary`_.
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.. glossary::
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:sorted:
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AArch32
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32-bit execution state of the ARMv8 ISA
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AArch64
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64-bit execution state of the ARMv8 ISA
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AMU
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Activity Monitor Unit, a hardware monitoring unit introduced by FEAT_AMUv1
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that exposes CPU core runtime metrics as a set of counter registers.
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API
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Application Programming Interface
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AT
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Address Translation
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BTI
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Branch Target Identification. An Armv8.5 extension providing additional
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control flow integrity around indirect branches and their targets.
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CoT
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COT
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Chain of Trust
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CSS
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Compute Sub-System
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CVE
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Common Vulnerabilities and Exposures. A CVE document is commonly used to
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describe a publicly-known security vulnerability.
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DCE
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DRTM Configuration Environment
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D-CRTM
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Dynamic Code Root of Trust for Measurement
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DLME
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Dynamically Launched Measured Environment
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DRTM
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Dynamic Root of Trust for Measurement
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DS-5
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Arm Development Studio 5
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DSU
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DynamIQ Shared Unit
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DT
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Device Tree
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DTB
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Device Tree Blob
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EL
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Exception Level
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EHF
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Exception Handling Framework
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FCONF
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Firmware Configuration Framework
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FDT
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Flattened Device Tree
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FF-A
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Firmware Framework for Arm A-profile
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FIP
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Firmware Image Package
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FVP
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Fixed Virtual Platform
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FWU
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FirmWare Update
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GIC
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Generic Interrupt Controller
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ISA
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Instruction Set Architecture
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Linaro
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A collaborative engineering organization consolidating
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and optimizing open source software and tools for the Arm architecture.
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LSP
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A logical secure partition managed by SPM
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MMU
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Memory Management Unit
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MPAM
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Memory Partitioning And Monitoring. An optional Armv8.4 extension.
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MPMM
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Maximum Power Mitigation Mechanism, an optional power management mechanism
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supported by some Arm Armv9-A cores.
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MPIDR
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Multiprocessor Affinity Register
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MTE
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Memory Tagging Extension. An optional Armv8.5 extension that enables
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hardware-assisted memory tagging.
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OEN
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Owning Entity Number
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OP-TEE
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Open Portable Trusted Execution Environment. An example of a :term:`TEE`
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OTE
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Open-source Trusted Execution Environment
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PDD
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Platform Design Document
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PAUTH
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Pointer Authentication. An optional extension introduced in Armv8.3.
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PMF
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Performance Measurement Framework
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PSA
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Platform Security Architecture
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PSCI
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Power State Coordination Interface
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RAS
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Reliability, Availability, and Serviceability extensions. A mandatory
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extension for the Armv8.2 architecture and later. An optional extension to
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the base Armv8 architecture.
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ROT
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Root of Trust
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SCMI
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System Control and Management Interface
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SCP
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System Control Processor
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SDEI
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Software Delegated Exception Interface
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SDS
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Shared Data Storage
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SEA
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Synchronous External Abort
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SiP
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SIP
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Silicon Provider
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SMC
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Secure Monitor Call
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SMCCC
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:term:`SMC` Calling Convention
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SoC
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System on Chip
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SP
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Secure Partition
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SPD
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Secure Payload Dispatcher
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SPM
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Secure Partition Manager
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SRTM
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Static Root of Trust for Measurement
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SSBS
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Speculative Store Bypass Safe. Introduced in Armv8.5, this configuration
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bit can be set by software to allow or prevent the hardware from
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performing speculative operations.
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SVE
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Scalable Vector Extension
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TBB
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Trusted Board Boot
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TBBR
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Trusted Board Boot Requirements
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TCB
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Trusted Compute Base
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TCG
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Trusted Computing Group
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TEE
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Trusted Execution Environment
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TF-A
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Trusted Firmware-A
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TF-M
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Trusted Firmware-M
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TLB
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Translation Lookaside Buffer
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TLK
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Trusted Little Kernel. A Trusted OS from NVIDIA.
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TPM
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Trusted Platform Module
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TRNG
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True Randon Number Generator (hardware based)
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TSP
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Test Secure Payload
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TZC
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TrustZone Controller
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UBSAN
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Undefined Behavior Sanitizer
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UEFI
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Unified Extensible Firmware Interface
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WDOG
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Watchdog
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XLAT
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Translation (abbr.). For example, "XLAT table".
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.. _`Arm Glossary`: https://developer.arm.com/support/arm-glossary
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