Hi All,
I have send a mail to a number of motherboard manufacturers about the IOMMU
support in their bioses.
At the moment MSI has replied (in Dutch) that the MSI 890FXA-GD70 should
support it. But it would be nice if it has user confirmation.
I'm thinking about putting a table on the wiki, stating the replies from tech.
supports, and a column with user experiences.
--
Sander
Thursday, June 10, 2010, 9:12:03 AM, you wrote:
> Hi!
> I ordered a Asus Crosshair Formula IV for testing. Will report next week
> if it works.
> And I contacted Asrock support again and told them that Asus supports
> it. They will give the informations to their bios-team in Taiwan.
> Meanwhile there is a very good and active discussion in the forum
> http://forums.tweaktown.com/f69/ga-890fxa-ud5-iommu-bios-switch-39801/index7.html
>
> about boards with 890fx and iommu.
> Jens
> Am 09.06.2010 22:26, schrieb Wei Huang:
>> Hi,
>>
>> We talked with AMD client managers. They believe all 890FX platforms
>> should be capable of supporting IOMMU. There must be mis-communication
>> with motherboard vendors. We are in the process of contacting with them.
>> Hopefully the vendors will turn on this feature soon. For now, please
>> just purchase the motherboards with IOMMU enabled (I think Joerg pointed
>> out ASUS at least. I can't verify it myself though.).
>>
>> Best,
>> -Wei
>>
>> Sander Eikelenboom wrote:
>>> So in principle they would like to support it , but they can't / don't
>>> know how.
>>> Very interested at AMD's answer then, unfortunately Wei Huang seems to
>>> be on vacation until June 7th.
>>>
>>> For what i understood in the past was that AMD's solution would not
>>> depend on cpu support (as intel's vt-d does).
>>> And with vga passthrough, iommu on the desktop looks like a good use
>>> of an iommu in my opinion.
>>> --
>>> Sander
>>>
>>>
>>> Thursday, June 3, 2010, 12:51:23 PM, you wrote:
>>>
>>>
>>>> I got this answer from asrock support:
>>>
>>>
>>>
>>>> <answer>
>>>
>>>> So, I get more/final answer from Taiwan department:
>>>
>>>
>>>
>>>> For H/W part:
>>>
>>>> From chipset spec, RD890(890FX) did support IOMMU.
>>>
>>>> But IOMMU also need CPU to support. Till now, AMD has no plan to support
>>>
>>>> IOMMU on desktop CPU (AM3 socket).
>>>
>>>> It only support with server CPU.
>>>
>>>
>>>
>>>> For BIOS part:
>>>
>>>> AMD has removed IOMMU related registers.
>>>
>>>> So there is no chance to let IOMMU work on our 890FX board unless AMD
>>>> can
>>>
>>>> provide such a process, and registers.
>>>
>>>
>>>
>>>> Best regards,
>>>
>>>> ASRock Support
>>>
>>>> </answer>
>>>
>>>
>>>
>>>> So they say it is AMD's fault. :-(
>>>
>>>
>>>
>>>> Regards,
>>>
>>>> Jens
>>>
>>>
>>>
>>>
>>>
>>>
>>>
>>>> On Thu, 3 Jun 2010 11:23:10 +0200, Sander Eikelenboom
>>>
>>>> <linux@xxxxxxxxxxxxxx> wrote:
>>>
>>>>> Thursday, June 3, 2010, 10:53:29 AM, you wrote:
>>>
>>>
>>>>>> The ASRock 890FX Deluxe3 doesn't support the IOMMU technology too.
>>>
>>>>>> http://forums.amd.com/forum/messageview.cfm?catid=383&threadid=134410
>>>
>>>
>>>>>> I'm very disappointed that main board manufacturers don't enable all
>>>
>>>>>> features for the processor and main board.
>>>
>>>
>>>
>>>>>> On Thu, June 3, 2010 10:19 am, Sander Eikelenboom wrote:
>>>
>>>>>>> Thx for the forum threads, i have changed the wiki about
>>>>>>> vt-d/iommu to
>>>
>>>>>>> reflect these new experiences.
>>>
>>>
>>>>>>> I was hoping AMD would be able to do a better job than Intel, and
>>>>>>> have
>>>
>>>>>>> learned from the BIOS missery Intel has with there VT-d, and
>>>
>>>>>>> instruct/help
>>>
>>>>>>> the manafacturers getting their bioses right.
>>>
>>>
>>>>>> I have a feeling that it's not AMD but the main board manufacturers
>>>>>> who
>>>
>>>>>> don't enable IOMMU in the BIOS. (It might be a hidden feature, for
>>>
>>>> people
>>>
>>>>>> who want to hack the BIOS at your own risk).
>>>
>>>>>> http://www.rebelshavenforum.com/sis-bin/ultimatebb.cgi
>>>
>>>
>>>>> Ofcourse you are right, but as chipset manufacturer I would be pretty
>>>
>>>>> pissed and contact them.
>>>
>>>>> Also I don't know how hard AMD and Intel make it to implement the
>>>
>>>> feature
>>>
>>>>> in the bios. Since most of the time it's or disabled or broken.
>>>
>>>>> On the other hand, they only support "microsoft windows" and that
>>>
>>>> doesn't
>>>
>>>>> do a lot with an IOMMU. So in essence it's an unsupported feature.
>>>
>>>
>>>>> It's too bad though, it seemed to be a very nice virtualization
>>>
>>>> platform,
>>>
>>>>> 6 cores, iommu, affordable ...
>>>
>>>
>>>>> Hmm guess i'm going to write every manufacturer if they supported,
>>>
>>>> and/or
>>>
>>>>> if there are plans to support it.
>>>
>>>>> Hopefully one will do it in the end ...
>>>
>>>
>>>>> --
>>>
>>>>> Sander
>>>
>>>
>>>>>>> It's a pity that a nice feature isn't supported. No sense in
>>>>>>> upgrading
>>>
>>>>>>> my
>>>
>>>>>>> setup then to a six core and mobo with IOMMU. :(
>>>
>>>
>>>
>>>>>>> --
>>>
>>>>>>> Sander
>>>
>>>
>>>
>>>
>>>>>>>> Gigabyte motherboards don't support IOMMU:
>>>
>>>
>>>> http://forums.tweaktown.com/f69/ga-890fxa-ud5-iommu-bios-switch-39801/
>>>
>>>
>>>>>>>> MSI boards have the same problems:
>>>
>>>>>>>> http://comments.gmane.org/gmane.comp.emulators.xen.user/58630
>>>
>>>
>>>>>>>> ASUS Crosshair IV Formula has IOMMU, but I cannot find if it works
>>>
>>>> with
>>>
>>>>>>>> Xen.
>>>
>>>
>>>
>>>
>>>
>>>>>>>> On Sun, May 9, 2010 at 11:38 PM, Sander Eikelenboom
>>>
>>>>>>>> <linux@xxxxxxxxxxxxxx>wrote:
>>>
>>>
>>>>>>>>> Hello Wei,
>>>
>>>
>>>>>>>>> I hope motherboard manufacturers do a better job with supporting
>>>
>>>> this
>>>
>>>>>>>>> iommu
>>>
>>>>>>>>> in the bios than they did with intel's. Especially Asus made a mess
>>>
>>>> of
>>>
>>>>>>>>> it,
>>>
>>>>>>>>> and hasn't fixed it in newer bioses for multiple motherboards.
>>>
>>>>>>>>> And since all motherboard reviews don't mention nor test the iommu
>>>
>>>>>>>>> it's
>>>
>>>>>>>>> hard to know upfront if it's supported :-(
>>>
>>>
>>>>>>>>> --
>>>
>>>
>>>>>>>>> Sander
>>>
>>>
>>>>>>>>>> Leonardo,
>>>
>>>
>>>>>>>>>> I can confirm that AMD 890FX supports IOMMU v1.22. It was briefly
>>>
>>>>>>>>> mentioned by external sites, such as
>>>
>>>>>>>>> http://techreport.com/articles.x/18825. It looks like Asus,
>>>>>>>>> Gigabyte
>>>
>>>>>>>>> and
>>>
>>>>>>>>> MSI will ship motherboards with 890FX chipset. Xen 4.0 fully
>>>
>>>> supports
>>>
>>>>>>>>> AMD
>>>
>>>>>>>>> IOMMU v1.2. Note that IOMMU needs support from BIOS (ACPI IVRS
>>>
>>>> table).
>>>
>>>>>>>>> Please pay a bit attention to this area.
>>>
>>>
>>>>>>>>>> -Wei
>>>
>>>
>>>>>>>>>> From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx [mailto:
>>>
>>>>>>>>> xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Leonardo
>>>
>>>> Prosperi
>>>
>>>>>>>>>> Sent: Sunday, May 09, 2010 1:02 PM
>>>
>>>>>>>>>> To: xen-devel@xxxxxxxxxxxxxxxxxxx
>>>
>>>>>>>>>> Subject: [Xen-devel] IOMMU and AMD 890fx
>>>
>>>
>>>
>>>>>>>>>> Hi,
>>>
>>>>>>>>>> All the reviews for the AMD 890fx chipset reported that it
>>>
>>>> supports
>>>
>>>>>>>>> IOMMU
>>>
>>>>>>>>> v1.2.
>>>
>>>>>>>>>> But I cannot find any mention of that on AMD site.
>>>
>>>
>>>>>>>>>> Does 890fx support IOMMU?
>>>
>>>>>>>>>> Do 890fx motherboards with IOMMU exist?
>>>
>>>>>>>>>> Does Xen support 890fx?
>>>
>>>
>>>>>>>>>> Regards,
>>>
>>>>>>>>>> Leonardo
>>>
>>>
>>>
>>>
>>>
>>>>>>>>> --
>>>
>>>>>>>>> Best regards,
>>>
>>>>>>>>> Sander mailto:linux@xxxxxxxxxxxxxx
>>>
>>>
>>>
>>>
>>>
>>>
>>>>>>> --
>>>
>>>>>>> Best regards,
>>>
>>>>>>> Sander mailto:linux@xxxxxxxxxxxxxx
>>>
>>>
>>>
>>>>>>> _______________________________________________
>>>
>>>>>>> Xen-devel mailing list
>>>
>>>>>>> Xen-devel@xxxxxxxxxxxxxxxxxxx
>>>
>>>>>>> http://lists.xensource.com/xen-devel
>>>
>>>
>>>
>>>
>>
>>
--
Best regards,
Sander mailto:linux@xxxxxxxxxxxxxx
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