Re: [Xen-users] VT-Support error

[Net Warrior <netwarrior863@xxxxxxxxx>]

On 07/12/10 19:49, chris wrote:
> 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
>>>
>>> _______________________________________________
>>> Xen-users mailing list
>>> 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
>>
>>
>> _______________________________________________
>> Xen-users mailing list
>> Xen-users@xxxxxxxxxxxxxxxxxxx
>> http://lists.xensource.com/xen-users
>>
>>     
Well, it seems there is no luck!! eventhough I thought this CPU was the
right for me, I made a bad move, or at least the svm
that this CPU supports it's not enough.

So, as for your comment, it seems the vt-d it's an intel feature only?
no way to export pci devices to DomU's using AMD?


Thanks for yor time and support..


vendor_id    : AuthenticAMD
cpu family    : 16
model        : 5
model name    : AMD Athlon(tm) II X4 630 Processor
stepping    : 2
cpu MHz        : 181187.590
cache size    : 512 KB
fpu        : yes
fpu_exception    : yes
cpuid level    : 5
wp        : yes
flags        : fpu de tsc msr pae mce cx8 apic mtrr mca cmov clflush mmx
fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow
constant_tsc rep_good nonstop_tsc extd_apicid pni cx16 popcnt hypervisor
lahf_lm cmp_legacy extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch
bogomips    : 5624.81
TLB size    : 1024 4K pages
clflush size    : 64
cache_alignment    : 64
address sizes    : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate


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