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xen-devel
Re: [Xen-devel] VMM detection
On 06/03/2009 02:04, "Jun Koi" <junkoi2004@xxxxxxxxx> wrote:
>> No, they behave 'natively' when running as an HVM guest. The guest cannot
>> easily tell it is running on a VMM.
>>
>
> It is not difficult if you look else where. For ex, HVM uses Bochs
> BIOS, and that is a clear evidence.
>
> There are already a lot of papers proved that it is impossible to hide
> the fact that your machine is virtual. You can search on Usenix
> website, for example.
I believe it will always be trivial as a kernel. As an application less so.
Certainly the specific '17 unvirtualisable instructions' the OP asked about
are handled undetectably by HVM.
-- Keir
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