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[Xen-users] Set PCI device latency from domU?


  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: "Ben Holt" <beanjammin@xxxxxxxxx>
  • Date: Thu, 10 Apr 2008 12:36:23 -0700
  • Delivery-date: Thu, 10 Apr 2008 12:36:58 -0700
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  • List-id: Xen user discussion <xen-users.lists.xensource.com>

If a PCI device has been passed to a domU is it possible to set its
latency from the domU or does it have to be done from the domO?

When I attempt to set a devices latency from the domU with setpci I do
not receive an error message back indicating a problem, however the
latency as viewed with lspci -v is not changed.  The same setpci
command from the dom0 successfully changes the latency and the change
is shown with lspci -v on both dom0 and the domU to which the device
has been passed.

- Ben

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