On Tue, 30 Dec 2014 14:25:37 +0200 "Michael S. Tsirkin" <mst@xxxxxxxxxx> wrote: > On Thu, Dec 11, 2014 at 02:25:15PM +0100, Cornelia Huck wrote: > > virtio-1 allow setting of the FEATURES_OK status bit to fail if > > the negotiated feature bits are inconsistent: let's fail > > virtio_set_status() in that case and update virtio-ccw to post an > > error to the guest. > > > > Signed-off-by: Cornelia Huck <cornelia.huck@xxxxxxxxxx> > > Right but a separate validate_features call is awkward. > How about we defer virtio_set_features until FEATURES_OK, > and teach virtio_set_features that it can fail? Hm. But we would need to keep virtio_set_features() where it is called now for legacy devices, as they will never see FEATURES_OK, right? So we need to make this depending on revisions (or whatever the equivalent is for pci/mmio), as we cannot check for VERSION_1. Not sure whether this makes the code easier to follow. _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
