On 07/12/10 21:15, Trolle Selander wrote:
> IOMMU is a chipset feature, not a CPU feature. For AMD CPUs, you need
> a motherboard with the 890FX chipset to get IOMMU functionality - it's
> the only current consumer-grade chipset that supports it on the AMD
> side. On the intel side, you also need to really do your research to
> make sure you get a motherboard with a chipset that supports VT-d -
> far from all Intel chipsets do.
>
> -- Trolle
>
> On Mon, Jul 12, 2010 at 7:48 PM, Daniel Kao <dkao@xxxxxxxxxxxx
> <mailto:dkao@xxxxxxxxxxxx>> wrote:
>
> On 7/12/2010 4:44 PM, Net Warrior wrote:
>
> 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
> <mailto: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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>
> 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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>
>
> 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
>
>
> If I recall, some people have had luck with AMD SVM. However,
> it's heavily dependent on which motherboard/chipset you have and
> if it's enabled. I'd have to search through the Xen list
> archives, but I remember seeing some successes with AMD SVM for
> PCI passthrough. -- If you've got the right hardware, Xen will
> support it.
>
> It's just that Intel VT-d is more heavily used/documented as working.
>
>
> Cheers,
> Daniel
>
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>
>
>
> _______________________________________________
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> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
Well, good to know that, anyway , I've got an m4a785td-m evo mobo which
seems to have the 785G/SB710 chipset
so, no luck.
Thank for your time and support, really appreciated!!
Regards
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