Ulrich Drepper wrote: > Avi Kivity wrote: > >> [[Can't a paravirtualized kernel use a vdso to use int $0x80 instead of >> syscall?]] >> > > No. The ABI is to inline syscall instructions. That's possible since > it's not as limited/broken as sysenter. >
Then maybe kvm+npt+paravirt can indeed be competitive with pure paravirt. Although npt requires up to 16 accesses for a tlb fill, usually all but two will be cached on a moderately sized guest, so I don't expect the cost to be prohibitive. -- Do not meddle in the internals of kernels, for they are subtle and quick to panic. ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ kvm-devel mailing list kvm-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/kvm-devel
