Hi, There is a macro current which may mean to get the current vcpu information. But the physical machine may be multi-core ,thus there may be tow or more vcpus running in parallel on different cores.Then how can I understand the current vcpu please? Which vcpu is the current? Could somebody provide some documents about xen''s vcpu mechanism or the relationship between vcpu and physical cpu please? Thanks. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel