Il 18/09/2014 23:54, David Hepkin ha scritto: > The chief advantage I see to using a hypercall based mechanism is > that it would work across more architectures. MSR's and CPUID's are > specific to X86. If we ever wanted this same mechanism to be > available on an architecture that doesn't support MSR's, a hypercall > based approach would allow for a more consistent mechanism across the > architectures. > > I agree, though, that converging on a common hypercall interface that > would be implemented by all of the hypervisors would likely be much > harder to achieve.
There are differences between architectures at the hypercall level, starting with the calling convention. So I don't think it makes much sense to use a hypercall. Paolo _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
