Re: [Xen-users] Usage of pci-attach

[Yosuke Iwamatsu <y-iwamatsu@xxxxxxxxxxxxx>]

Hi,

Asim wrote:
> Hi,
>
> Can anyone tell me if I'm using the pci-attach and detach correctly? I
> am running Xen which has been built with CONFIG_XEN_BACKEND_PASS
> enabled. When I issue the below command to test the hot plug feature
> :-
>
> Device is attached :-
>
> [root@adsl-01 ~]# xm pci-attach 20 01:0a.0
> Error: Device 0000:01:0a.00 is already connected.
> Usage: xm pci-attach <Domain> <PciDev>
>
> Create a new pass-through pci device.
This shows the pci device 01:0a.0 was already attached to your domain.

> Device is detached:-
> [root@adsl-01 ~]# xm pci-detach 20 01:0a.0
>
> uh?what happenned?
If you got no error message here, you had successfully removed the pci
device from your domain. To check if the device is really hot-removed,
execute 'lspci' command inside domain 20 before and after pci-detach
and compare the results.

> [root@adsl-01 ~]# xm pci-attach 20 01:0a.0
> Error: Device 0 not connected
> Usage: xm pci-attach <Domain> <PciDev>
>
> Create a new pass-through pci device.
pci-attach was failed for some reason here. The information of xend.log,
dmesg in domu, dmesg in dom0 and the result of 'xenstore-ls -f' would
help us investigating the problem further.

Regards,
-- Yosuke

> Am I using this correctly? If any one has used it successfully - kindly help me.
>
> Regards,
> Asim
>
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