HV_ENABLE_EXTENDED_HYPERCALLS
HV_ENABLE_EXTENDED_HYPERCALLS;
ent->ebx |= HV_ENABLE_EXTENDED_HYPERCALLS;
if (!(ms_hyperv.priv_high & HV_ENABLE_EXTENDED_HYPERCALLS))
HV_ENABLE_EXTENDED_HYPERCALLS)) {
vcpu_set_cpuid_feature(vcpu, HV_ENABLE_EXTENDED_HYPERCALLS);