[qnx hypervisor 2.2 user manual]12.2 terminology (II)

IOMMU - I / O memory management unit

I / O memory management unit （Input/Output Memory management unit ）. A memory management unit （MMU） Will support DMA I/O The bus is connected to main memory . It's like the traditional MMU, take CPU Visible intermediate address physical address , One IOMMU Map the visible intermediate address of the device to the physical address . This mapping ensures that DMA The device cannot interact with areas outside the memory boundary .

Intel Virtualization Technology For Directe I/O(VT-d） yes Intel IOMMU The implementation of the .x86（VT-d） and ARMv8 Are provided for IOMMO Hardware support for . stay QNX Environment , When in guset Enable when using pass through mode IOMMU, Refer to your hardware documentation .

IPI - Inter processor interrupt

By Hypervisor Used for communication or interruption between cores VM.

Lahav Line - Lahaf line

The rahaf line describes Hypervisor How to run directly on the hardware ,

NUC

Para-virtualization

Pass-through

pCPU

PIC

PPI

Privilege level

PSCI

QNX Guest

QNX Hypervisor（QH）

QNX Hypervisor for Safety（QHS）

QNX Neutrino

QNX OS

QNX OS for Safety (QOS)

QNX Software Development Platform (SDP)

Ring

Run

SMP

vCPU

vdev

VIRTIO

Virtualization extension

Virtualized system

VM