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Re: How to copy data between guest memory and host


From: 沈梦姣
Subject: Re: How to copy data between guest memory and host
Date: Thu, 19 Nov 2020 01:57:06 +0800


By the way, I’m using TCG mode.

Thanks

> 在 2020年11月18日,下午3:44,沈梦姣 <shen.mengjiao3@icloud.com> 写道:
> 
> Hi,
> I’m adding device for one platform(e.g. mps2), and also writing driver for 
> that device on guest os. There is a buffer allocated in qemu where some data 
> will be cooked, and driver will update buffer address located in guest memory 
> space to qemu device. So the question is how to copy data between the two 
> different memory space?
> 
> Thanks a lot!
> 
> 



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