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| From: | Avi Kivity |
| Subject: | Re: [Qemu-devel] kvm PCI assignment & VFIO ramblings |
| Date: | Mon, 22 Aug 2011 13:51:35 +0300 |
| User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:5.0) Gecko/20110707 Thunderbird/5.0 |
On 08/22/2011 01:46 PM, Joerg Roedel wrote:
> $ readlink /sys/devices/pci0000:00/0000:00:19.0/iommu_group > ../../../path/to/device/which/represents/the/resource/constraint > > (the pci-to-pci bridge on x86, or whatever node represents partitionable > endpoints on power) That does not work. The bridge in question may not even be visible as a PCI device, so you can't link to it. This is the case on a few PCIe cards which only have a PCIx chip and a PCIe-2-PCIx bridge to implement the PCIe interface (yes, I have seen those cards).
How does the kernel detect that devices behind the invisible bridge must be assigned as a unit?
-- error compiling committee.c: too many arguments to function
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