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RE: [Xen-devel] RE: Xen enviroment consultation

To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Subject: RE: [Xen-devel] RE: Xen enviroment consultation
From: "Fan, Huaxiang" <hufan@xxxxxxxxxxxx>
Date: Mon, 23 May 2011 08:54:19 +0000
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Thread-topic: [Xen-devel] RE: Xen enviroment consultation
Hi Konrad,
Thanks, the problem solved when I pass in 'iommu=soft' in the PV guests. Could 
you elaborate on the link between this option and the problem?

And this option also raised another minor issue. For example, I have 4 domus, 
and the PCI passthru situation as below:
Domu_name  passthru_pci_number_in_dom0
1           04:00.0 04:00.1
2           02:00.0 02:00.1
3           01:00.1
4           <none>

I passed in 'iommu=soft' in 1,2,3 domu. The order I should boot the domus is 
1,2,3,4. Otherwise, the domu might fail to boot due to the error:
Pciback 0000:04:00.1: device has been assigned to another domain! Over-writing 
the ownership, but beware.

Any idea about this?

-----Original Message-----
From: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx 
[mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Konrad Rzeszutek 
Sent: Friday, May 20, 2011 11:10 PM
To: Fan, Huaxiang
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx; xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-devel] RE: Xen enviroment consultation

On Fri, May 20, 2011 at 10:54:16AM +0000, Fan, Huaxiang wrote:
> Hi All,
> I use Debian6 to do the test. It turns out to be the same problem.
> I used xen4.0.1 and dom0/domu kernel2.6.32-5-xen-amd64, when I passthru 
> Broadcom BCM5709 to the domu, the NIC is UP but not RUNNING (i.e., can not 
> receive/send packages) , What kind of NIC you guys passthru successfully 
> under xen4+kernel2.6.32?

It would be really helpful if you did provide some logs. Did you also pass in 
'iommu=soft' in the PV guest?

The NICs I've tried it on were .. hmm, I don't have the list in front of me, 
but I do remember
these modules: e1000, igb, ixgb, tg3, sky2, and r8169.

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