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Re: [Xen-users] PCIe switch that does not support or enable ACS

To: dongle <m.wessler@xxxxxx>
Subject: Re: [Xen-users] PCIe switch that does not support or enable ACS
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Tue, 28 Dec 2010 17:53:20 +0200
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On Tue, Dec 28, 2010 at 05:46:37AM -0800, dongle wrote:
> Hi Folks:
> I am oot able to add HP Intel 4Port PCIe to a linux hvm domain. HW is a HP
> DC7900.
> ErrorMessage:
> VmError: pci: to avoid potential security issue, 0000:22:00.0 is not allowed
> to be assigned to guest since it is behind PCIe switch that does not support
> or enable ACS.
> I also added in /etc/xen/xend-config.sxp:
> pci-passthrough-strict-check no
> pci-dev-assign-strict-check no
> but no success.
> Same HW Configuration works without any changes under xen 3.2.1 !
> Thanks for your help !

Note that there was been *many* changes to IOMMU/VT-d code
since Xen 3.2.

What version of Xen did you use now? 

-- Pasi

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