* How to comminicate between two QOM model?
@ 2021-09-02 6:40 Duo jia
2021-09-02 7:07 ` Klaus Jensen
0 siblings, 1 reply; 2+ messages in thread
From: Duo jia @ 2021-09-02 6:40 UTC (permalink / raw)
To: QEMU Developers
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HI,
I has two QOM model,A and B, When A‘s register changed,B’s register will
should also be change .
I dont konw how to change B's reg in A device .
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* Re: How to comminicate between two QOM model?
2021-09-02 6:40 How to comminicate between two QOM model? Duo jia
@ 2021-09-02 7:07 ` Klaus Jensen
0 siblings, 0 replies; 2+ messages in thread
From: Klaus Jensen @ 2021-09-02 7:07 UTC (permalink / raw)
To: Duo jia; +Cc: QEMU Developers
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On Sep 2 14:40, Duo jia wrote:
> HI,
> I has two QOM model,A and B, When A‘s register changed,B’s register will
> should also be change .
>
> I dont konw how to change B's reg in A device .
There are a couple of ways you can "plumb" devices and objects together.
For devices you can use a qdev bus if you have a strict parent/child
relationship between A and B. Or you can use a "link" property to
manually wire up the devices/objects. Or use can use object composition
(device A creates a child object B).
But I think it depends a lot on what you are actually modeling and you
are not sharing a lot of information on that ;)
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