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[Xen-users] PCI Devices, hotplug and performance

  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: "Christian Lyra" <lyra@xxxxxxxxxxxxx>
  • Date: Wed, 29 Mar 2006 11:09:52 -0300
  • Delivery-date: Wed, 29 Mar 2006 14:11:40 +0000
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

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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