Hi all, I''m investigating the source code of Xenified kernel. From documentations related to Xen told me that all guest domains run in less privilege mode ( ring 1 in case of x86). Dom0 is also running in ring 1. But it can have direct access to IO devices. It means Dom0 has a special bahaviour that it is running in ring1 but can directly access IO devices. How Dom0 access IO devices directly? how can I relate this special way of Dom0 with its source code? _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel