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Re: [Xen-users] Xen 3.1, Fedora 8 and PCI passthrough

To: Kenneth Lundström <kenneth.lundstrom@xxxxxxxxx>
Subject: Re: [Xen-users] Xen 3.1, Fedora 8 and PCI passthrough
From: Stephan Seitz <s.seitz@xxxxxxxxxxxx>
Date: Fri, 22 Feb 2008 20:26:45 +0100
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Kenneth Lundström schrieb:
Hello everyone,

I´m trying to attach a NIC to a Domu, I have the following setup:

Fedora 8, updated with yum,
Xen 3.1 installed via yum
installed CentOS on one DOmU

I have hidden the NIC with this text in modprobe.conf:
# hide (0000:04:00.0)
options pciback hide=(04:00.0)
install via-rhine /sbin/modprobe pciback ; /sbin/modprobe --first-time --ignore

How do I attach the NIC to a DomU?

1st. take a look in your /var/log/syslog, dmesg, /var/log/messages ...
(sorry, currently don't know where exactly this shows up)
there should be a line containing "seizing" (...device).

2nd. add a line to your PV domU config file:

pci = [ '04:00.0' ]

after starting the domU, you should have this pci device available.






I have been trying now for maybe a couple of days trying anything I could find on the net about this.

I can´t find any config files to edit, I did a virsh dumpxml but could not find an example of what to write into the XML-file. All I found was to convert the XML file to a plain file, but no instructions howto to do that.

I´m grateful of any ideas you might have.



Kenneth Lundström




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