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Re: [Qemu-discuss] [Xen-users] Is there a method to check my machine sup

From: Nick Couchman
Subject: Re: [Qemu-discuss] [Xen-users] Is there a method to check my machine support VT-d without checking bios
Date: Tue, 22 Jan 2013 07:26:55 -0700

>>> On 2013/01/21 at 19:45, lei yang <address@hidden> wrote: 
> Hi experts,
> Is there a method to check my machine support VT-d without checking
> bios, I want use a script or tool to get this
> Lei

Yes...if you look at the "xm dmesg" output, you should see one of the following 

(XEN) I/O virtualisation enabled


(XEN) I/O virtualisation disabled

If you see the "disabled" version of the message, check your BIOS to see if it 
just needs to be turned on.  Also, if you see disabled, grab the model number 
of your CPU and check the CPU specs to see if the CPU support I/O 
Virtualization.  I'm not sure about AMD, but Intel's site has very easy-to-read 
specs for the CPUs that tell you about the various features they support.


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