2017-12-21 20:43 GMT+08:00 Paolo Bonzini <pbonzini@xxxxxxxxxx>: > These fields are also simple copies of the data in the vmcs12 struct. > For some of them, prepare_vmcs02 was skipping the copy when the field > was unused. In prepare_vmcs02_full, we copy them always as long as the > field exists on the host, because the corresponding execution control > might be one of the shadowed fields. Why we don't need to copy them always before the patchset? Regards, Wanpeng Li