Re: [Xen-users] physdev_dom0_hide in xen 3.0.2

[Andy Clayton <xen.nospam@xxxxxxxxxx>]

Frank DiRocco wrote:
> pciback.hide=(00:11.0)  and  pci=['00:11:0']
> when I lspci in dom0 i still see the device and when i lspci in the 
> domu i still see the device with 0000: in front of it.
> I am passing two vifs to it with
> vif = ['mac=aa:cc:00:00:00:02, bridge=xenbr0','mac=aa:cc:00:00:00:03, 
> bridge=xenbr1']
> the machine is only able to bring up eth0 and eth1, eth2 fails.
> any ideas?
>
> On 4/23/06, *Frank DiRocco* <ofanged1@xxxxxxxxx 
> <mailto:ofanged1@xxxxxxxxx>> wrote:
>     thanks! I have seen that option before but couldn't find it and
>     forgot exactly where I saw it last.
>
>
>     On 4/23/06, *Q3aiml* < q3aiml@xxxxxxxxxx
>     <mailto:q3aiml@xxxxxxxxxx>> wrote:
>
>         Frank DiRocco wrote:
>         > Does physdev_dom0_hide work in 3.0.2? If no, is there an
>         alternative,
>         > or somthing other than using a bridge?
>         >
>         Yeah, the replacement is pciback.  To hide devices you now pass
>         pciback.hide to the kernel.  Example:
>
>             title Xen 3.0 / XenLinux 2.6
>             kernel /boot/xen-3.0.gz console=vga dom0_mem=256M
>             module /boot/vmlinuz-2.6-xen root=/dev/md0 ro quiet splash
>         console=tty0 pciback.hide=(06:08.0)(06:09.0)
>             module /boot/initrd.img- 2.6.16-xen
>
>         Then to use them in a domain the syntax is unchanged:
>
>             pci = ['06,08,00','06,09,00']
>
>         Hope that helps,
>         Andy Clayton
>
>
>
>
>
>     -- 
>     Thank you,
>     Frank  Di Rocco
>
>         if (!try()) { while (!$caught) { cheat(); } lie(); exit; } -
>     anonymous
Due to the nature of the new pciback, you will see the device both in 
dom0 and the assigned domU.  If lspci shows the device and it shows up 
under ifconfig, then to me that sounds like a problem localized to the 
domU.  Can you provide more details/logs regarding how it fails?  I seem 
to remember some talk in xen-devel about certain cards needing a 
permissive setting to work.  I believe that setting is integrated into 
3.0.2 so it is worth a try, but I cannot say for sure off the top of my 
head.  If you want to check into it just search the -devel archives for 
something about pciback and permissive.  Either that or maybe someone 
involved with that patch can say more specifically.
- Andy Clayton

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