This patchset implements a virtual PTP driver which allows guest to sync its clock to the host clock with high precision ( error is < 10ns). Changelog from v1 Patch1: v2: unify nsec_base (Radim) Patch2: v2: improve documentation (Radim) change hypercall name to KVM_HC_CLOCK_PAIRING (Radim) increase padding size Patch3: v2: check for kvmclock (Radim) initialize global variables before device registration (Radim) -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html