[CentOS-virt] Xen pci passthru problems with kernel -164.6.1
Miguel Di Ciurcio Filho
miguel at ic.unicamp.br
Tue Nov 10 15:57:42 UTC 2009
I previously reported this on the centos mailing list:
And I've found out that Red Hat has backported the VT-d support from Xen
3.3 to RHEL 5.4.
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
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).
Am I the only one bitten by this?
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