Avi Kivity wrote: >> >> It looks like KVM will simply crash when it runs into a real-mode state >> it can't approximate with V86 mode. I guess I had the failed notion >> that it would kick back such "impossible" states to Qemu. > > Exactly. There's the emulate_invalid_guest_state module parameter which > tells kvm to emulate during such state instead. But this will often > break as programs leave fs and gs in non-v86-mode compliant, requiring > more of the emulator than it currently provides. > Any reason to not make use of Qemu in userspace, rather than relying on the in-kernel interpreter for these? The kernel interpreter is obviously The Right Thing to avoid frequent ping-pong into the kernel, but it seems to me that such a potential "long-term" situation might be better handled by Qemu? -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. -- 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
