[QNX hypervisor 2.2 user manual] 3.2.1 VM configuration syntax

Write it at the front

One VM Configuration files are readable text files .

When you start a qvm Process to create VM And run guest when ,qvm The process reads the configuration information to learn how to assemble and configure VM.

One 、 The basic rule

The general rules for configuration files are as follows ：

• With “#” The first line is all comments , It can be ignored , Same as blank line ;
• qvm Items in the configuration （ Non comment ） Can be options or parameters ;

Two 、 Rule options

The rules for options are as follows ：

• An option can affect the context in several ways ：

1. An option establishes a context , Other options can be set in ; for example ,vdev Option to establish a context , A virtual device can be defined in it through other options .
2. One option applies to one context ; for example ,cpu Under Options sched It can be applied to the current cpu Options . therefore sched be conducive to cpu Appoint vCPU The definition of .
3. An option can neither establish context , Nor does it apply to the context ; for example ram Option supports setting the location and size of memory allocation for applicable parameters , But it doesn't support options ;

• stay VM in , Applying the contained specified component to the context... Is not supported . for example ,CPU command qvm Process creates a virtual CPU, Then load /vm/images/qnx7.ifs To order qvm Process Copy /vm/images/qnx7.ifs Content to guest System address space .
• For unspecified options , No default .
• Most options （ Not all ） A parameter is required .
• Generally speaking ,option Order doesn't matter . for example , You define vdev The order of is irrelevant .

3、 ... and 、 Rules for parameters

A parameter must be ：

• Use of parameters