Re: [Xen-users] VT-Support error

[chris <tknchris@xxxxxxxxx>]

if its a athlon II, then there is no vt-d. vt-d is a intel iommu

On Mon, Jul 12, 2010 at 2:47 PM, Net Warrior <netwarrior863@xxxxxxxxx> wrote:
> On 07/12/10 15:00, Daniel Kao wrote:
>>  On 7/12/2010 10:54 AM, Net Warrior wrote:
>>> Hi there..
>>> I've got the folowing error while trying to assign the video card from
>>> Dom0 to DomU
>>>
>>> Using config file "/etc/xen/winkk".
>>> Error: failed to assign device: maybe the platform doesn't support VT-d,
>>> or VT-d isn't enabled properly?
>>>
>>> What Am I missing? obviously I've got VT support enable, cuz I was able
>>> to create the Windows DomU.
>>>
>>> Config file
>>> pci=[ '01:05.0' ]
>>>
>>> lspci
>>> 01:05.0 VGA compatible controller: ATI Technologies Inc Device 9710
>>>
>>> grub config
>>>
>>> module /boot/vmlinuz-2.6.31.13 ro root=/dev/sda1
>>> xen-pciback.hide=(01:05.0)
>>>
>>> Anyway xm pci-list-assignable-devices show nothing, what's wrong?
>>>
>>>
>>> Thanks is advance
>>> Regards
>>
>> VT-d support (PCI passthrough) is a subset of VT-x support.  Not all
>> chipsets support VT-d nor is it required for full-virtualization of
>> guests. (i.e. Windows)
>>
>> Cheers,
>> Daniel
>>
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>> Xen-users@xxxxxxxxxxxxxxxxxxx
>> http://lists.xensource.com/xen-users
> I do not understad, what does it mean? that I shoud not be getting that
> error and should be able to pass-throught the decive to my DomU?
> Reading this -  http://wiki.xensource.com/xenwiki/VTdHowTo, also added
> iommy=1 to grub, but no luck, still do not get
> why xm pci-list-assignable-devices show nothing, at least should show
> 01:05.0, in xen pci backend mode also used Virtual PCI just to test,
> same behavior.
>
>
> I'm using
> 2.6.31.13 #7 SMP Mon Jul 12 15:33:25 ART 2010 x86_64 AMD Athlon(tm) II
> X4 630 Processor AuthenticAMD GNU/Linux
>
> All xen options compiled embeded, not modules/initramfs used.
>
> Regards
>
>
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> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
>

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