From mboxrd@z Thu Jan  1 00:00:00 1970
From: Wei Huang <wei.huang2@amd.com>
Subject: Re: IOMMU and AMD 890fx
Date: Thu, 10 Jun 2010 14:12:17 -0500
Message-ID: <4C113911.9030005@amd.com>
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To: Andrew Oakley <andrew@ado.is-a-geek.net>
Cc: "Przywara, Andre" <Andre.Przywara@amd.com>, "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>, Leonardo Prosperi <leo.prosperi@gmail.com>, Joerg Roedel <joro@8bytes.org>, =?ISO-8859-1?Q?Jens_Krehbi?= =?ISO-8859-1?Q?el-Gr=E4ther?= <xen@jkg-it-services.de>, Sander Eikelenboom <linux@eikelenboom.it>, Joop Boonen <joop_boonen@web.de>
List-Id: xen-devel@lists.xenproject.org

Hi Andrew,

Could you do us a favor by taking a look at chipset options (or 
something similar)? The IOMMU option might be hidden under that menu. 
Virtualization is for enabling CPU's SVM feature. So it is unrelated.

Thanks,
-Wei

Andrew Oakley wrote:
> On Thu, 3 Jun 2010 13:51:05 +0200
> Andre Przywara <andre.przywara@amd.com> wrote:
>   
>> If the ACPI table is missing, you can try to look for the
>> corresponding PCI device: it should have a vendor/device-id of
>> 1002:5a23, lspci lists it as:
>> 00:00.2 Generic system peripheral [0806]: ATI Technologies Inc Device
>> 5a23 If anyone has a board with the PCI device but a missing ACPI
>> table, please tell us.
>>
>> We are already trying to improve the situation, you could help us by 
>> reporting the IOMMU support status on 890FX boards. Simply check for
>> the ACPI table:
>> # xm dmesg | grep IVRS    or
>> $ ls /sys/firmware/acpi/tables/IVRS
>> and by checking for the PCI device:
>> $ /sbin/lspci -d 1002:5a23
>>     
>
> I have a Gigabyte GA-890FXA-UD5 motherboard.  I have opened a support
> ticket with Gigabyte but have not yet received any reply.  The
> virtualization option in the BIOS is turned on, there do not appear to
> be any other relevant options.  
>
> $ lspci -d 1002:5a23
> $ ls /sys/firmware/acpi/tables/
> APIC  DSDT  dynamic  FACP  FACS  HPET  MATS  MCFG  SSDT  TAMG
>
> If there is any response from Gigabyte to AMD can it be published on
> the list please?
>
> Thanks
>
>