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xen-devel
Re: [Xen-devel] XEN) vmx.c:2652:d1 Bad vmexit (reason 31) with Xen 4.0.1
On Sun, Mar 20, 2011 at 03:43:07PM -0700, Kay, Allen M wrote:
> Konrad,
>
> I believe sharept=0 is the default. If it is set to sharept=1, the code is
> enabled only on the systems that has compatible EPT and VT-d page table
> format. There is no such hardware on the market yet.
>
> What type of NHM SDP do you have? Is it a HEDT (High End Desktop) with a
> add-on graphics card? I have been using a Westmere EP system (NHM
> architecture generation) and have not seen this problem. I also have ready
> access to Ironlake SDP's I can test on if you see the same problem on
> Ironlake (i.e. core i5) systems.
Not sure how to identify it. The motherboard does require a discrete graphic
card.
>
> Do you see the same problem if you do iommu=0 in the grub?
I tried 'iommu=off' but I think that is the same thing.
Let me try 'iommu=0' just to make sure.
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