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Re: [Xen-devel] [PATCH] nestedhvm: xentrace support

To: Christoph Egger <Christoph.Egger@xxxxxxx>
Subject: Re: [Xen-devel] [PATCH] nestedhvm: xentrace support
From: Keir Fraser <keir.xen@xxxxxxxxx>
Date: Thu, 14 Apr 2011 15:49:51 +0100
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Thread-topic: [Xen-devel] [PATCH] nestedhvm: xentrace support
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On 14/04/2011 15:36, "Christoph Egger" <Christoph.Egger@xxxxxxx> wrote:

>> I also discarded the change to the VMENTRY record to add the guest EIP.
>> Firstly, it was incomplete, because it did not handle 64-bit RIP. Secondly,
>> it does not logically belong in this patch. Finally, George may have a
>> reason for not including RIP in VMENTRY records (e.g., not that useful
>> compared with the extra space taken up in trace records). So you'd need to
>> submit a new patch and get an Ack from George (who is currently on holiday).
> Ok. If he has one I would like to know it.
> For nested virtualization it is at least good debugging information to
> see if the l2 guest loops somewhere or not.

He might at least agree to it in the L2 case only. Anyhow, that's his call
not mine.

 -- Keir

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