On Tue, Nov 10, 2009 at 01:57:42PM -0200, Miguel Di Ciurcio Filho wrote: > I previously reported this on the centos mailing list: > > http://lists.centos.org/pipermail/centos/2009-November/085672.html > > And I've found out that Red Hat has backported the VT-d support from Xen > 3.3 to RHEL 5.4. > > http://lists.centos.org/pipermail/centos/2009-November/085677.html > > It seams to me that the "classic" Xen pci-passthru (up to Xen 3.2) works > only on some minor cases as described here (when using the new kernel > and hypervisor): > https://bugzilla.redhat.com/show_bug.cgi?id=514458#c4 > > The recommendation seams to be (although not stated at any > documentation) to use the VT-d support for various reasons (better > security for the guests when accessing the hardware I guess). > > My concern is that the hardware I use does not support VT-d (it is a > Intel 5000P chipset, ~2 years old) so I believe I'm kind of screwed. Or > keep using the kernel and Xen packages from 5.3 (not a good option either). > Yeah.. VT-d support is only on most recent chipsets, and many BIOSes still have broken implementations of it :( > Am I the only one bitten by this? > Yeah I guess.. so far.. -- Pasi