kvm_clock_data   1027 include/uapi/linux/kvm.h #define KVM_SET_CLOCK             _IOW(KVMIO,  0x7b, struct kvm_clock_data)
kvm_clock_data   1028 include/uapi/linux/kvm.h #define KVM_GET_CLOCK             _IOR(KVMIO,  0x7c, struct kvm_clock_data)