Re: [Xen-devel] Swapping frame contents

[George Dunlap <George.Dunlap@xxxxxxxxxxxxx>]

On Sun, Oct 4, 2015 at 12:37 PM, Bilal Bakht Ahmad <tringingly@xxxxxxxxx> wrote:
> Is there any way the contents of 2 frames be swapped given their gmfn/mfn?

Probably?

Your question isn't very detailed; you might benefit from reading this:

http://wiki.xenproject.org/wiki/Asking_Developer_Questions

Would the following algorithm work?
- pause VM
- copy data from gmfn A into temporary buffer
- copy data from gmfn B into gmfn A
- copy data from temporary buffer into gmfn B
- unpause VM

 -George

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