[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-users] Is there a method to check my machine support VT-d without checking bios



I don't know - if you're running Xen you need to use "xm dmesg" and not just 
"dmesg" and look for I/O virtualisation.

-Nick

>>> On 2013/01/22 at 08:43, lei yang <yanglei.fage@xxxxxxxxx> wrote: 
> On Tue, Jan 22, 2013 at 10:26 PM, Nick Couchman <Nick.Couchman@xxxxxxxxx> 
> wrote:
>>>>> On 2013/01/21 at 19:45, lei yang <yanglei.fage@xxxxxxxxx> 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 lines:
>>
>> (XEN) I/O virtualisation enabled
>>
>> or
>>
>> (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.
>>
> 
> 
> Does blow can prove it supports vt-d which mentioned in
> http://www.linux-kvm.org/page/How_to_assign_devices_with_VT-d_in_KVM
> 
>         dmesg | grep -e DMAR -e IOMMU
> 
>      ...
>      DMAR:DRHD base: 0x000000feb03000 flags: 0x0
>      IOMMU feb03000: ver 1:0 cap c9008020e30260 ecap 1000
> 
> 
> I'm not sure what output for no-vt-d intel board
> 
> 
> Lei
> 
> 
> 
>> -Nick
>>
>>
>>
>> --------
>>
>> This e-mail may contain confidential and privileged material for the sole 
>> use 
> of the intended recipient.  If this email is not intended for you, or you are 
> not responsible for the delivery of this message to the intended recipient, 
> please note that this message may contain SEAKR Engineering (SEAKR) 
> Privileged/Proprietary Information.  In such a case, you are strictly 
> prohibited from downloading, photocopying, distributing or otherwise using 
> this message, its contents or attachments in any way.  If you have received 
> this message in error, please notify us immediately by replying to this 
> e-mail 
> and delete the message from your mailbox.  Information contained in this 
> message that does not relate to the business of SEAKR is neither endorsed by 
> nor attributable to SEAKR.




--------
This e-mail may contain confidential and privileged material for the sole use 
of the intended recipient.  If this email is not intended for you, or you are 
not responsible for the delivery of this message to the intended recipient, 
please note that this message may contain SEAKR Engineering (SEAKR) 
Privileged/Proprietary Information.  In such a case, you are strictly 
prohibited from downloading, photocopying, distributing or otherwise using this 
message, its contents or attachments in any way.  If you have received this 
message in error, please notify us immediately by replying to this e-mail and 
delete the message from your mailbox.  Information contained in this message 
that does not relate to the business of SEAKR is neither endorsed by nor 
attributable to SEAKR.

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxx
http://lists.xen.org/xen-users


 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.