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From: Alexander Graf <agraf@suse.de>
To: pille <pille+kvm-devel@struction.de>
Cc: kvm@vger.kernel.org
Subject: Re: xen-in-kvm doesn't work with kvm-81.
Date: Fri, 5 Mar 2010 21:08:44 +0100	[thread overview]
Message-ID: <2F93D71D-58B0-4607-9BC1-8215C21692C2@suse.de> (raw)
In-Reply-To: <4B916442.8020105@struction.de>


On 05.03.2010, at 21:06, pille wrote:

>> I guess you're not using nested paging and an old version of xen that incorrectly modifies its own page tables while actively using them.
> 
> is nested paging needed? i guess my cpu (intel xeon) doesn't provide that feature.

It would be called "ept" there. You should be able to see the feature in /proc/cpuinfo - at least on recent kernels (read: 2.6.33).

> i'm using xen-3.2.1. can you define 'old'?

I remember having had a similar issue. I told our Xen team about it and they fixed it upstream and in a maintenance update for SLES11 Xen, so I'm sure that one works. No idea which upstream version has it.


Alex

  reply	other threads:[~2010-03-05 20:08 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-17  6:16 xen-in-kvm doesn't work with kvm-81 Yiyi Hu
2008-12-17 12:07 ` Avi Kivity
2008-12-17 16:35   ` Yiyi Hu
2008-12-17 16:43   ` Yiyi Hu
2009-01-01 12:39 ` Avi Kivity
2009-01-04 13:18   ` Avi Kivity
2010-03-05 19:46     ` pille
2010-03-05 19:54       ` Alexander Graf
2010-03-05 20:06         ` pille
2010-03-05 20:08           ` Alexander Graf [this message]
2010-03-07  8:42           ` Avi Kivity

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