pci passthrough with KVM

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We are using pci passthrough with an SCSI Adapter card. The system is:

-  O.S:  Ubuntu 10.04.1 LTS
-  KVM Packages: 

kvm    1:84+dfsg-0ubuntu16+0.12.3+noroms+0ubuntu9.2
kvm-pxe   5.4.4-1ubuntu1
qemu-kvm     0.12.3+noroms-0ubuntu9.2 
libvirt-bin      0.7.5-5ubuntu27.2
python-libvirt    0.7.5-5ubuntu27.2
libvirt0        0.7.5-5ubuntu27.2

- Kernel  2.6.32.15+drm33.5.iommu    recompiled with following options :

CONFIG_DMAR=y
CONFIG_INTR_REMAP=y

- Apparmor is stopped

When we started the virtual machine we obtain the following error: 

char device redirected to /dev/pts/3 
device: 04:04.0: driver="pci-assign" host="04:04.0" 
Failed to assign irq for "04:04.0": Operation not permitted 
Perhaps you are assigning a device that shares an IRQ with another device? 


Thanks in advance,


									Inigo 

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