Beyond DMAR there are other changes that I found were required to make Vt-d virtualisation work. I have reported these in Bug #639712
-- CONFIG_DMAR is not set https://bugs.launchpad.net/bugs/552311 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs