On Tue, Aug 26, 2014 at 10:16 PM, Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote: > There are two outstanding issues. virtio_net warns if DMA debugging > is on because it does DMA from the stack. (The warning is correct.) > This also is likely to do something unpleasant to s390. > (Maintainers are cc'd -- I don't know what to do about it.) This changes the semantics of vring and breaks existing guests when bus address != physical address. Can you use a transport feature bit to indicate that bus addresses are used? That way both approaches can be supported. Please also update the virtio specification: https://tools.oasis-open.org/version-control/browse/wsvn/virtio/ Stefan -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
