[Xen-users] PCI Devices, hotplug and performance

Christian Lyra
Wed, 29 Mar 2006 14:09:52 -0000

Hi there,

I´m running xen-3 unstable with kernel source pulled from mercurial
repository a couple of weeks ago. I´m hiding a few PCI devices from Dom0
using the pci.hide option but hotplug still can find the devices, is this
supposed to happen? To be on safe side I´m blacklisting those devices in
Dom0 hotplug configuration. I just saw that the PCI hiding configuration was
removed from the online manual (am I right?), and looking at the
configuration examples I´m guessing that there is another way of doing this.
So far pci hiding is working well.

I was thinking about hiding a sata controller from Dom0 and using
it in one DomU running a file server. From my initial tests it seems to
work. Should I expect a better performance doing this, or using the VBD is a
better option?

thanks in advance,


Christian Lyra


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