On 12/14/09 21:43, Michael S. Tsirkin wrote:
What do we put in e.g. 0.11 compat? Any features we enable
there might not be supported by host.
compat properties as usual?
Sorry, I still fail to see your problem.
You'll have a 'disable' bitmap. Fill it via 'features=<bitmap-prop>'.
Or using separate properties for each feature.
qemu goes figure host_features. When done it masks out the features
disabled via properties. The result is used as final feature bitmap.
-M pc-0.11 will disable hw_checksum
management software can do it too via -device virtio-net-pci,... if some
machines in the pool don't support it. And of course qemu will disable
it on its own in case the host kernel doesn't support it.
cheers,
Gerd
