Il 12/10/2012 00:37, Rusty Russell ha scritto: > "Michael S. Tsirkin" <mst@xxxxxxxxxx> writes: >> On Thu, Oct 11, 2012 at 10:33:31AM +1030, Rusty Russell wrote: >>> OK. Well, Anthony wants qemu to be robust in this regard, so I am >>> tempted to rework all the qemu drivers to handle arbitrary layouts. >>> They could use a good audit anyway. >> >> I agree here. Still trying to understand whether we can agree to use >> a feature bit for this, or not. > > I'd *like* to imply it by the new PCI layout, but if it doesn't work > we'll add a new feature bit. > > I'm resisting a feature bit, since it constrains future implementations > which could otherwise assume it. Future implementations may certainly refuse to start if the feature is not there. Whether it's a good idea or not, well, that depends on how much future they are. Paolo >>> This would become a glaring exception, but I'm tempted to fix it to 32 >>> bytes at the same time as we get the new pci layout (ie. for the virtio >>> 1.0 spec). >> >> But this isn't a virtio-pci only issue, is it? >> qemu has s390 bus with same limmitation. >> How can we tie it to pci layout? > > They can use a transport feature if they need to, of course. But > perhaps the timing with ccw will coincide with the fix, in which they > don't need to, but it might be a bit late. > > Cornelia? > > Cheers, > Rusty. > -- 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
