Re: [Xen-devel] We still have to disable vtd for old chipset?

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

The interface changed in a pre-release stepping of that chipset model. I
assume you must have a development (not retail) machine?

 -- Keir

On 3/6/08 08:17, "Neo Jia" <neojia@xxxxxxxxx> wrote:

>> sudo /sbin/lspci
> Password:
> 00:00.0 Host bridge: Intel Corporation 5400 Chipset Memory Controller
> Hub (rev 10)
> 00:01.0 PCI bridge: Intel Corporation 5400 Chipset PCI Express Port 1 (rev 10)
> 00:05.0 PCI bridge: Intel Corporation 5400 Chipset PCI Express Port 5 (rev 10)
> 00:09.0 PCI bridge: Intel Corporation 5400 Chipset PCI Express Port 9 (rev 10)
> 00:10.0 Host bridge: Intel Corporation 5400 Chipset FSB Registers (rev 10)
> 00:10.1 Host bridge: Intel Corporation 5400 Chipset FSB Registers (rev 10)
> 00:10.2 Host bridge: Intel Corporation 5400 Chipset FSB Registers (rev 10)
> 00:10.3 Host bridge: Intel Corporation 5400 Chipset FSB Registers (rev 10)
> 00:10.4 Host bridge: Intel Corporation 5400 Chipset FSB Registers (rev 10)
> 00:11.0 Host bridge: Intel Corporation 5400 Chipset CE/SF Registers (rev 10)
> 00:15.0 Host bridge: Intel Corporation 5400 Chipset FBD Registers (rev 10)
> 
> In the user mailing list, I saw somebody is using VT-D on this chipset?
> 
> Thanks,
> Neo
> 
> On Tue, Jun 3, 2008 at 12:15 AM, Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
> wrote:
>> I believe the hardware interface was different in older chipsets, so there's
>> really no chance we'll support them.
>> 
>>  -- Keir
>> 
>> On 3/6/08 02:00, "Neo Jia" <neojia@xxxxxxxxx> wrote:
>> 
>>> I am seeing the following error message in xm dmesg.
>>> 
>>> (XEN) [VT-D]utils.c:59: *** VT-d disabled - pre C0-step Seaburg found
>>> (XEN) [VT-D]utils.c:62: ***  vendor = 8086 device = 4000 revision = 10
>>> 
>>> This is on Dell T7400. And the change is
>>> 
http://lists.xensource.com/archives/html/xen-changelog/2007-09/msg00284.html>>>
.
>>> 
>>> So, I am wondering if there is any fix for this?
>>> 
>>> Thanks,
>>> Neo
>> 
>> 
>> 
> 
> 



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