Re: [Xen-users] Shared memory between Dom0 and DomU

[Xie White <wait.xen@xxxxxxxxx>]

Memory Sharing 

allow sharing of identical pages between HVM guests

it‘s a feature of Xen, but it is under tech preview. 

I just want to enable this feature.

here is a link for xen 4.0.1.

http://xen.1045712.n5.nabble.com/Memory-Page-Sharing-on-Xen-4-0-1-td4531585.html

I want to enable it in xen 4.2 or 4.3. I don't know whether this works.

2013/9/6 Ian Campbell <Ian.Campbell@xxxxxxxxxx>

On Thu, 2013-09-05 at 16:08 -0400, Xie White wrote:
> Hi, guys,
>
>
> I'm sorry to disturb you.
>
>
> I am a student. I want to use Xen to do some test about memory sharing
> between two domain. I am a newbie in Xen memory sharing. I want to set
> up a environment.
>
>
> I search on the internet. I find some patch for old version. However,
> I want to running on Xen 4.1 or 4.2 version. Does this still work? Can
> you help me? Can you give some instruction on this? or Can you give me
> some information?

What exactly do you mean by memory sharing between dom0 and domU?

> also, I want to know how the data structure "page_info" in xen connect
> with data structure "page" in linux kernel. Which source code files do
> I need to read?

I suggest you use tools such as grep to locate the relevant source file.

Ian.

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