"H. Peter Anvin" <h...@zytor.com> writes: > > That's why at least to some extent The Right Thing is not to try to > pretend to be a CPU you don't even know how to emulate. > > But again, that has its own issues, too, mostly with userspace > optimization, and making the Linux code more resilient wouldn't hurt. > In that sense #GP(0) is *much* better than 0: it unambiguously gives an > error to work with.
That means we could just throw rdmsr() away and it would be completely replaced with rdmsr_safe(). But then that will likely cause all kinds of problems with how to handle these errors and where and how to handle these exceptions. I much prefer just to fix KVM. I cannot think of any case where 0 would cause a major issue. After all it's virtualization not "rewrite complete kernel for it" -Andi -- a...@linux.intel.com -- Speaking for myself only -- 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/
