Re: IOMMU and AMD 890fx

[Andrew Oakley <andrew@ado.is-a-geek.net>]

On Thu, 10 Jun 2010 14:12:17 -0500
Wei Huang <wei.huang2@amd.com> wrote:

> 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.

I've been through (all) the BIOS options (again) and I'm sure there are
no options for the IOMMU.  "Virtualization" does seem to turn on SVM.  

> 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
> >
> >   
> 
>