On Mon, Sep 14, 2009 at 07:51:16PM +0300, Izik Eidus wrote: > Marcelo Tosatti wrote: >> Why can't you use the writable bit in the spte? So that you can only >> sync a writeable spte if it was writeable before, in sync_page? >> > > I could, but there we will add overhead for read only gptes that become > writable in the guest... > If you prefer to fault on the syncing of the guest gpte readonly to gpte > writeable I can change it... > > What you prefer? Oh yes, better keep the bit then. >> Is there any other need for the extra bit? >> > > No > -- 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