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

[Xie White <wait.xen@xxxxxxxxx>]

What I want to do is to enable memory_sharing on my Xen. 

I search the mails. I find some guys discussed this before.

Does someone can give me some advises?

Appreciate!

Thanks.

This is great....

All VM's is HVM here...

Thanks
Pasi Kärkkäinen escreveu:

On Thu, Apr 08, 2010 at 12:52:21PM -0300, Gilberto Nunes wrote:

   Yes...

   I'm testing 4.0 and see this option on xend-config...
   I read comment and wanna know more about it...

   This memory share work like KSM or not????

It works only for HVM guests.. I haven't tried it (yet), so I cannot tell you more..

You might want to discuss it on xen-devel mailinglist..

-- Pasi

   Thanks
   Pasi Kärkkäinen escreveu:

 On Thu, Apr 08, 2010 at 10:02:24AM -0300, Gilberto Nunes wrote:


 Hi...

 What the purpose of this option:

 memory_sharing

 Is this some KSM tecnology???

 Thanks for replay....



 Are you testing Xen 4.0 perhaps?
 [1]http://wiki.xensource.com/xenwiki/Xen4.0

 -- Pasi



   --
   Gilberto Nunes Ferreira
   Suporte T.I.
   Selbetti Gestão de Documentos
   (47) 3441-6004 / (47) 8861-6672
   Fax (47) 3441-6021
   [2]gilberto.nunes@xxxxxxxxxxxxxxx

References

   Visible links
   1. http://wiki.xensource.com/xenwiki/Xen4.0
   2. mailto:gilberto.nunes@xxxxxxxxxxxxxxx

2013/9/9 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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