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[Xen-devel] xen 3.3.0 pv pci passthrough co-assigned problem

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] xen 3.3.0 pv pci passthrough co-assigned problem
From: "stefan-neuwirth@xxxxxxxxxxx" <stefan-neuwirth@xxxxxxxxxxx>
Date: Thu, 16 Oct 2008 09:20:08 +0200
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After upgrading from xen 3.2.x to xen 3.3.0 I get an error message
when using pci passthrough with pv guests (my system is not vt-d
enabled):

xm create -c /etc/xen/domU/myguest
Using config file "/etc/xen/domU/myguest".
Error: pci: 0000:0e:05.0 must be co-assigned to the same guest with 0000:0f:0a.0

Sharing diffrent pci devices behind a pci bridge used to work in older
xen versions for pv guests. It seems the restriction for the vt-d
passthrough is also applied to the pv passthrough - any reason for
this? For me this is a real big regression.

  Stefan

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