CPUID_VIA_HAS_RNG
bool has_viarng = (cpu_feature[4] & CPUID_VIA_HAS_RNG);
if (lfunc & CPUID_VIA_HAS_RNG) {
if ((cpu_feature[4] & (CPUID_VIA_HAS_ACE|CPUID_VIA_HAS_RNG)) == 0)
if (cpu_feature[4] & CPUID_VIA_HAS_RNG) {