Alexander Graf wrote: > Or we could put in some code that tells the guest the host shm > architecture and only accept x86 on x86 for now. If anyone cares for > other combinations, they're free to implement them. > > Seriously, we're looking at an interface designed for kvm here. Let's > please keep it as simple and fast as possible for the actual use case, > not some theoretically possible ones.
The concern is that a perfectly working guest image running on kvm, the guest being some OS or app that uses this facility (_not_ a kvm-only guest driver), is later run on qemu on a different host, and then mostly works except for some silent data corruption. That is not a theoretical scenario. Well, the bit with this driver is theoretical, obviously :-) But not the bit about moving to a different host. -- Jamie
