[Qemu-devel] Add a qemu interface for sharing memory between guests.

[Qemu-devel] Add a qemu interface for sharing memory between guests.

[Sivaram Kannan]

Hi all,

I am a KVM newbie and I picked up the following task from the TODO of the KVM wiki. 

Add a qemu interface for sharing memory between guests. Using a pci device to expose the shared memory is probably a good starting point. (this should use virtio and probably depends on mmu-notifiers) 

Is the task still relevant? Can I some one give some pointer for me to start with.

Thanks,
Siva.


      

[Qemu-devel] Re: Add a qemu interface for sharing memory between guests.

[Avi Kivity]

On 10/12/2009 08:53 AM, Sivaram Kannan wrote:
> Hi all,
>
> I am a KVM newbie and I picked up the following task from the TODO of the KVM wiki.
>
> Add a qemu interface for sharing memory between guests. Using a pci device to expose the shared memory is probably a good starting point. (this should use virtio and probably depends on mmu-notifiers)
>
> Is the task still relevant? Can I some one give some pointer for me to start with.
>
>    

Cam did a lot of work on this, perhaps he can provide a pointer.

-- 
error compiling committee.c: too many arguments to function

[Qemu-devel] Re: Add a qemu interface for sharing memory between guests.

[Cam Macdonell]

On Mon, Oct 12, 2009 at 2:55 AM, Avi Kivity <avi@redhat.com> wrote:
>
> On 10/12/2009 08:53 AM, Sivaram Kannan wrote:
>>
>> Hi all,
>>
>> I am a KVM newbie and I picked up the following task from the TODO of the KVM wiki.
>>
>> Add a qemu interface for sharing memory between guests. Using a pci device to expose the shared memory is probably a good starting point. (this should use virtio and probably depends on mmu-notifiers)
>>
>> Is the task still relevant? Can I some one give some pointer for me to start with.
>>
>>
>
> Cam did a lot of work on this, perhaps he can provide a pointer.
>
> --
> error compiling committee.c: too many arguments to function

Hi Sivaram,

Here are the two patches for KVM describing what I have done.  I am
continuing to work on it and still mulling a move to virtio.  These
don't apply against the current tree, but I can provide those patches
if you would like to see them.

http://patchwork.kernel.org/patch/38355/

http://patchwork.kernel.org/patch/38347/

We're you interested in using the shared memory for something in
particular or were you just looking for a to-do task to pick up?

Let me know if you have any questions,

Cheers,
Cam

[Qemu-devel] Re: Add a qemu interface for sharing memory between guests.

[Sivaram Kannan]

Hi Cam,

>>>Here are the two patches for KVM describing what I have done.  I am
>>>continuing to work on it and still mulling a move to virtio.  These
>>>don't apply against the current tree, but I can provide those patches
>>>if you would like to see them.

>>>http://patchwork.kernel.org/patch/38355/

>>>http://patchwork.kernel.org/patch/38347/

>>>We're you interested in using the shared memory for something in
>>>particular or were you just looking for a to-do task to pick up?

>>>Let me know if you have any questions,

>>>Cheers,
>>>Cam

I just saw your the mail. I was just going through the To-Do task to pick up and work on a task. 
I was going through the paper presented by Francois Diakhate´on Inter-VM communications and tinkering with the code. 

Would be great if you could send me the patch for the running kernel. 

Thanks,
Siva.