Glossary of Terms

ACPI

Advanced Configuration and Power Interface

API

Application Program Interface: A defined set of routines and protocols for building application software.

BIOS

Basic Input/Output System.

GPU

Graphics Processing Unit

I2C

Inter-Integrated Circuit

IC

Instrument Cluster

IDT

Interrupt Descriptor Table: a data structure used by the x86 architecture to implement an interrupt vector table. The IDT is used to determine the correct response to interrupts and exceptions.

ISR

Interrupt Service Routine: Also known as an interrupt handler, an ISR is a callback function whose execution is triggered by a hardware interrupt (or software interrupt instructions) and is used to handle high-priority conditions that require interrupting the current code executing on the processor.

IVE

In-Vehicle Experience

IVI

In-vehicle Infotainment

OS

Operating System

OSPM

Operating System Power Management

Pass-Through Devices

Physical devices (typically PCI) exclusively assigned to a guest. In the Project ACRN architecture, pass-through devices are owned by the foreground OS.

PCI

Peripheral Component Interface.

PM

Power Management

PV

Para-virtualization (See https://en.wikipedia.org/wiki/Paravirtualization)

RSE

Rear Seat Entertainment

SDC

Software Defined Cockpit

SOS

Service OS

UEFI

Unified Extensible Firmare Interface. UEFI replaces the traditional BIOS on PCs, while also providing BIOS emulation for backward compatibility. UEFI can run in 32-bit or 64-bit mode and, more important, support Secure Boot, checking the OS validity to ensure no malware has tampered with the boot process.

UOS

User OS (also known as Guest OS)

VHM

Virtio and Hypervisor Service Module

Virtio-BE

Back-End, VirtIO framework provides front-end driver and back-end driver for IO mediators, developer has habit of using Shorthand. So they say Virtio-BE and Virtio-FE

Virtio-FE

Front-End, VirtIO framework provides front-end driver and back-end driver for IO mediators, developer has habit of using Shorthand. So they say Virtio-BE and Virtio-FE

VM

Virtual Machine

VMM

Virtual Machine Monitor

VMX

Virtual Machine Extension

VT

Intel Virtualization Technology

VT-d

Virtualization Technology for Directed I/O