Re: [Xen-users] Exclusive allocation of network card

[Simon Hobson <linux@xxxxxxxxxxxxxxxx>]

At 15:14 +0530 21/4/09, Fasiha Ashraf wrote:
> I tried to find it but in vain... kindly send me the link or exact 
> location where it hs been discussed.
Apologies - I stand corrected. It came up very recently, but checking 
the archives I see it's actually not quite so recent that it's been 
answered. You can search the archives for pciback like this :
http://lists.xensource.com/archives/cgi-bin/namazu.cgi?query=pciback&submit=Search%21&idxname=xen-users&max=100&result=normal&sort=date%3Alate


It's also in the Xen handbook http://bits.xensource.com/Xen/docs/user.pdf.


In summary - you need to hide the device from your Dom0 by adding 
pciback.hide to your boot config. This example is from one of my 
servers where I've hidden an ethenet card and tv tuner :
> title           Xen 3.2-1-amd64 / Debian 2.6.18-6-xen-amd64 - Ext Eth hidden
> root            (hd0,0)
> kernel          /xen-3.2-1-amd64.gz dom0_mem=512M
> module		/vmlinuz-2.6.18-6-xen-amd64 root=/dev/sda3 ro 
> console=tty0 pciback.hide=(01:07.0)(01:06.0)
> module          /initrd.img-2.6.18-6-xen-amd64
Then in your guest config, you specify the device to be made 
available to the guest :
> pci=['01:07.0']
The address to use is found with lspci and MUST be entered in exactly 
that format - eg 1:7:0 is not OK, 01:07:1 is OK.
--
Simon Hobson

Visit http://www.magpiesnestpublishing.co.uk/ for books by acclaimed
author Gladys Hobson. Novels - poetry - short stories - ideal as
Christmas stocking fillers. Some available as e-books.

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