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From: Michal Novotny <minovotn@redhat.com>
To: Sachin Goel <SACHIN.GOEL@oracle.com>
Cc: xen-devel@lists.xensource.com
Subject: Re: How to detect if a machine is a Virtual machine ??
Date: Mon, 04 Jan 2010 07:32:58 +0100	[thread overview]
Message-ID: <4B418B9A.10108@redhat.com> (raw)
In-Reply-To: <73775f00-d334-4b42-9854-bebcb6891821@default>

Yeah, sorry about that. Hope you're not confused anymore ;)

Michal

On 12/23/2009 09:39 PM, Sachin Goel wrote:
> Thanks Michal for clarifying..
>
> For a moment I got confused :)
>
> - Sachin.
>
> ----- Original Message -----
> From: minovotn@redhat.com
> To: xen-devel@lists.xensource.com
> Sent: Thursday, December 24, 2009 1:20:34 AM GMT +05:30 Chennai, Kolkata, Mumbai, New Delhi
> Subject: Re: [Xen-devel] How to detect if a machine is a Virtual machine ??
>
> On 12/23/2009 10:34 AM, Michal Novotny wrote:
>    
>> On 12/23/2009 10:16 AM, John Haxby wrote:
>>      
>>> On 22/12/09 10:37, Michal Novotny wrote:
>>>        
>>>> Hi Sachin,
>>>> the tool is not in the virtual machine. This is the tool that's in
>>>> dom0. Since there is a source code for this one you could scp it to
>>>> the guest, compile and run inside the guest environment. There is no
>>>> need to provide a guest with this tool by default and in fact this
>>>> is really impossible so it's better to scp it to the guest and
>>>> compile there.
>>>>          
>>> It's also worth pointing out that the underlying test for xen in this
>>> program executes a particular instruction to find the information
>>> about its environment.   What that means is that it's possible to
>>> write a version of ./tools/misc/xen-detect.c that will work in any
>>> guest machine OS.
>>>        
>> But one more point, if you want to know whether XEN_PV is returned for
>> dom0 PV guest or domU (since it's the same for both) you can try to
>> look for /proc/xen/privcmd. This one is available only in dom0 because
>> privileged commands are for privileged domain (domain-0) only...
>>      
> Oh, sorry, I did mean for domU PV guest or dom0, of course...
>
> Michal
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
>    

  reply	other threads:[~2010-01-04  6:32 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-12-23 20:39 How to detect if a machine is a Virtual machine ?? Sachin Goel
2010-01-04  6:32 ` Michal Novotny [this message]
  -- strict thread matches above, loose matches on Subject: below --
2009-12-21 18:00 Sachin Goel
2009-12-22 10:37 ` Michal Novotny
2009-12-23  9:16   ` John Haxby
2009-12-23  9:30     ` Michal Novotny
2009-12-23  9:34     ` Michal Novotny
2009-12-23  9:35       ` Michal Novotny
2009-12-21 16:53 Sachin Goel
2009-12-21 16:56 ` Konrad Rzeszutek Wilk

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