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RE: [Xen-devel][PATCH][EPT] Fix the realmode live migration issue with EPT


  • To: "Keir Fraser" <keir.fraser@xxxxxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
  • From: "Xin, Xiaohui" <xiaohui.xin@xxxxxxxxx>
  • Date: Mon, 16 Jun 2008 14:05:27 +0800
  • Delivery-date: Sun, 15 Jun 2008 23:05:58 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: AcjNMBCDeIrD3USGQuO63WWTs+E7PAABd1/3AJA9XyA=
  • Thread-topic: [Xen-devel][PATCH][EPT] Fix the realmode live migration issue with EPT

I have tried it. It works fine. Thanks a lot. J

 

Thanks

Xiaohui

 


From: Keir Fraser [mailto:keir.fraser@xxxxxxxxxxxxx]
Sent: Friday, June 13, 2008 5:15 PM
To: Xin, Xiaohui; xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel][PATCH][EPT] Fix the realmode live migration issue with EPT

 

For backward compatibility I placed the IDENT_PT location in a new ‘chunk’ in the save/restore format. Please see changeset 17849. I also removed the code you added in xc_domain_restore.c to re-initialise the ident_pt page. It should be saved/restored along with all other guest memory, so this re-initialisation ought to be unnecessary. You might want to test that this is indeed the case.

 -- Keir

On 13/6/08 09:32, "Xin, Xiaohui" <xiaohui.xin@xxxxxxxxx> wrote:

The patch save/restore the HVM_PARAM_IDENT_PT parameter, then the live migration during real mode with EPT may work fine.
 
Signed-off-by: Xin, Xiaohui<Xiaohui.xin@xxxxxxxxx>


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