Commit 5045b46803 added a check that cs.dpl equals cs.rpl during task-switch. Unfortunately, is causes some of my tests that run well on bare-metal to fail. Although this check is mentioned in table 7-1 of the SDM as causing a #TSS exception, it is not mentioned in table 6-6 that lists "invalid TSS conditions" which cause #TSS exceptions. Thus, I recommend on reverting commit 5045b46803, or alternatively rechecking task-switch behavior on bare-metal. Nadav -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html