Hi, I am just asking PCI passthrough in Dom0 is off in FC6 kernel-build-option in x86. (from config file) This is your intended? Currently I am no plan to use PCI passthrough. But some people want to use this function, Need to re-build the kernel. c.f. PCI Passthrough is off in Xen/IA64 original. So IA64 does not need to use this option. Thanks Atsushi SAKAI