Re: [Xen-users] Does direct HW-Access work in 3.0.2

[Timo Benk <timo.benk@xxxxxx>]

Me again,

i found the reason why it isn\'t working. The PCI backend was compiled as
a module (SuSE 10.1RC1).

Currently i am compiling a new xen-kernel, but i am curious:

Is it possible to use the PCI backend driver if it is compiled
as a module?

I tried the following without success:

# modprobe pciback \'hide=(00:07.1)\'

Greetings,
-timo

On Tue, 18 Apr 2006 20:43:05 +0200, Timo Benk <timo.benk@xxxxxx> wrote:
> Hmmm,
> 
> i want to give direct IDE access to one of my domains:
> 
> # lspci
> ---<snip>---
> 00:07.1 IDE interface: Intel Corporation 82371AB/EB/MB PIIX4 IDE (rev 01)
> ---<snap>---
> 
> I configured grub:
> 
> ---<snip>---
> title XEN - IDE hidden
>     root (hd0,0)
>     kernel /boot/xen.gz
>     module /boot/vmlinuz-xen root=/dev/sda1 vga=0x314  \\\\
>       resume=/dev/sda2  splash=silent showopts pciback.hide=(00:07.1)
>     module /boot/initrd-xen
> ---<snap>---
> 
> And the domain in question:
> 
> ---<snip>---
> # direct hardware access
> pci = [\\\'00:07.1\\\']
> ---<snap>---
> 
> However, \\\'xm dmesg\\\' print no message, indicating that the device is
> really
> hidden.
> 
> When i start up the domain i get the following message:
> 
> ---<snip>---
> Error: pci: PCI Backend does not own device 0000:00:07.1
> See the pciback.hide kernel command-line parameter or
> bind your slot/device to the PCI backend using sysfs
> ---<snap>---
> 
> If i try to use sysctl i get the following message:
> 
> # sysctl \\\'pciback.hide=(00:07.1)\\\'
> error: \\\"pciback.hide\\\" is an unknown key
> 
> Am i missing something or can somebody point me in the riht 
> direction?
> 
> Thanks and greetings,
> -timo
> 
> On Tue, 18 Apr 2006 15:14:51 -0300, Christian Lyra <lyra@xxxxxxxxxxxxx>
> wrote:
>> On TerÃa 18 Abril 2006 14:30, Timo Benk wrote:
>>>  Hi,
>>>
>>>  i have just a short question:
>>>
>>>  Does direct Hardware-Access (pciback.hide) work in Xen 3.0.2.
>>>
>> 
>> short answer: yes
>> 
>> -- 
>> Christian Lyra
>> POP-PR - RNP
>> 
>> http://lyra.soueu.com.br
>> 
>>   The master programmer moves from program to program without fear. No 
>> change in management can harm him. He will not be fired, even if the 
>> project is cancelled. Why is this? He is filled with Tao. 
>>                                              The Tao Of Programing
>> 
>> _______________________________________________
>> Xen-users mailing list
>> Xen-users@xxxxxxxxxxxxxxxxxxx
>> http://lists.xensource.com/xen-users
> -- 
> Timo Benk
> PGP Public Key: http://vs241071.vserver.de/timo_benk_gpg_key.asc
> 
> 
> 
> _______________________________________________
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> http://lists.xensource.com/xen-users
-- 
Timo Benk
PGP Public Key: http://vs241071.vserver.de/timo_benk_gpg_key.asc



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