On Tue, Aug 26, 2014 at 04:58:34PM -0700, Andy Lutomirski wrote: > hpa pointed out that the ABI that I chose (an MSR from the KVM range > and a KVM cpuid bit) is unnecessarily KVM-specific. It would be nice > to allocate an MSR that everyone involved can agree on and, rather > than relying on a cpuid bit, just have the guest probe for the MSR. > CPUID part allows feature to be disabled for machine compatibility purpose during migration. Of course interface can explicitly state that one successful use of the MSR does not mean that next use will not result in a #GP, but that doesn't sound very elegant and is different from any other MSR out there. -- Gleb. _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
