FEATURE_7_1_EAX
cpu->arch.feature[FEATURE_7_1_EAX] = 0;
cpu->arch.feature[FEATURE_7_1_EAX] = cpuid.regs.eax;
if (cpu->arch.feature[FEATURE_7_1_EAX] & IA32_FEATURE_LASS)
if (cpu->arch.feature[FEATURE_7_1_EAX] & IA32_FEATURE_FRED)
if (cpu->arch.feature[FEATURE_7_1_EAX] & IA32_FEATURE_LKGS)
if (cpu->arch.feature[FEATURE_7_1_EAX] & IA32_FEATURE_WRMSRNS)
if (cpu->arch.feature[FEATURE_7_1_EAX] & IA32_FEATURE_NMI_SRC)