目录

一、hypervision介绍

Type 1 Hypervisor

Type 2 Hypervisor

二、QNX hypervision是TYPE1的虚拟机

三、QNX hypervision架构

1、VMM (虚拟机管理器)

2、virtual-net

3、qnx官网 network

九、其他

一、hypervision介绍

 首先，hypervision分为Type1和Type2，现在想要了解TYPE1型的虚拟机（应该是qnx hypervision吧，记得是，等会儿再查以下？）

hypervision是什么

什么是虚拟机管理程序hypervisor，什么是hypervisor type 1， hypervisor type 2_程序之巅的博客-CSDN博客

Xen、KVM、VMware、hyper-v等虚拟化技术的对比

摘录以下先：

Type 1 Hypervisor

可以本地安装并直接在物理主机上运行的Hypervisor称为Type 1 Hypervisor。

关键指标

• Type 1 Hypervisor可以直接安装在裸机系统或物理主机上。

• 它不需要先安装或可用的操作系统 (OS)，即可将自身部署在服务器上。

Type 2 Hypervisor

无法本地安装且需要操作系统才能在物理主机上运行的管理程序称为类型 2 管理程序。

关键指标

• Type 2 hypervisor 不能直接安装在裸机系统或物理主机上。

• 它需要首先安装或可用的操作系统，以便部署自己。

• VMware Workstation Player、VMware Workstation Pro和VirtualBox是Type 2 hypervisor的一些示例。

二、QNX hypervision是TYPE1的虚拟机

QNX Type 1 Hypervisor_锋影Q的博客-CSDN博客

The QNX Hypervisor 1.0 is a realtime Type 1 hypervisor that can be used for developing medical devices. By using the QNX Hypervisor, medical device developers can consolidate multiple operating systems onto a single compute platform or system-on-chip (SoC), thereby reducing the cost, size, weight, and power consumption of their products. The QNX Hypervisor is designed to simplify certification efforts for safety-critical systems. It can run safety-related software components on one OS and non-safety components on another OS, while keeping the two operating systems fully isolated from each other, though both run on the same hardware. This technique complements the advanced isolation mechanisms of the QNX Neutrino OS, which prevent software components from corrupting or consuming system resources needed by other components or by the OS itself. The QNX Hypervisor can also simplify the sharing of other resources, including network connections, file systems, and input/output devices such as the I2C serial bus. Developers are spared the effort of writing custom shared-device drivers that increase testing and certification costs and that typically exhibit lower performance than vendor-supplied device drivers. In addition to the QNX OS, the QNX Hypervisor also supports other operating systems, including Linux and Android. It complies with IEC 62304 standard for medical device software.

QNX Hypervisor —— 虚拟设备_建鼎呓语的博客-CSDN博客

三、QNX hypervision架构

1、VMM (虚拟机管理器)

VMM负责任务如下：

•     使用设备树中的配置启动qvm进程。
•     监听qvm运行状况事件，并向在主机(HOST)上运行的相关客户端提供通知。
•     当qvm、startupmgr或其他需要时，处理qvm的启动/重启/终止任务。
•     监视qvm进程，以防发生崩溃，并采取适当的措施。
•     根据运行状况事件/控制指令维护每个虚拟机的状态。
•     每当虚拟机的状态发生变化时，就向已注册的客户端通知事件。
   

01-SA8155 QNX 虚拟机Hypervisor_村里小码农的博客-CSDN博客_qnx虚拟机

2、virtual-net

虚拟化之Virtio-Net基础篇-51CTO.COM

05-SA8155 QNX Hypervisor 之 Virtio-i2c虚拟I2C_村里小码农的博客-CSDN博客

3、qnx官网 network

https://www.qnx.com/developers/docs/7.1/#com.qnx.doc.hypervisor.safety.user/topic/network/network.html

https://www.qnx.com/developers/docs/7.1/#com.qnx.doc.hypervisor.safety.user/topic/vdev_ref/vdev_virtio-net.html

九、其他

虚拟机体验之 Xen 篇 —— 令人脑洞大开的奇异架构 - sunylat - 博客园