On Fri, Nov 21, 2014 at 11:46 AM, Linus Torvalds <torva...@linux-foundation.org> wrote: > On Fri, Nov 21, 2014 at 11:34 AM, Linus Torvalds > <torva...@linux-foundation.org> wrote: >> >> So I kind of agree, but it wouldn't be my primary worry. My primary >> worry is actually paravirt doing something insane. > > Btw, on that tangent, does anybody actually care about paravirt any more? >
Amazon, for better or for worse. > I'd love to start moving away from it. It makes a lot of the low-level > code completely impossible to follow due to the random indirection > through "native" vs "paravirt op table". Not just the page table > handling, it's all over. > > Anybody who seriously does virtualization uses hw virtualization that > is much better than it used to be. And the non-serious users aren't > that performance-sensitive by definition. > > I note that the Fedora kernel config seems to include paravirt by > default, so you get a lot of the crazy overheads.. I think that there is a move toward deprecating Xen PV in favor of PVH, but we're not there yet. --Andy -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/