MSR_IA32_FEATURE_CONTROL
rdmsr(MSR_IA32_FEATURE_CONTROL));
feature_control = rdmsr(MSR_IA32_FEATURE_CONTROL);
wrmsr(MSR_IA32_FEATURE_CONTROL,
feature_control = rdmsr(MSR_IA32_FEATURE_CONTROL);
rdmsr(MSR_IA32_FEATURE_CONTROL));
msr = rdmsr(MSR_IA32_FEATURE_CONTROL);
(rdmsr(MSR_IA32_FEATURE_CONTROL) &
case MSR_IA32_FEATURE_CONTROL: