HV_X64_CLUSTER_IPI_RECOMMENDED
if (ms_hyperv.hints & HV_X64_CLUSTER_IPI_RECOMMENDED) {
!(ms_hyperv.hints & HV_X64_CLUSTER_IPI_RECOMMENDED) ||
HV_X64_CLUSTER_IPI_RECOMMENDED;
ent->eax |= HV_X64_CLUSTER_IPI_RECOMMENDED;
vcpu_set_cpuid_feature(vcpu, HV_X64_CLUSTER_IPI_RECOMMENDED);