kvm_get_feature_msr
kvm_get_feature_msr);
if (kvm_get_feature_msr(NULL, msr_index, &data, true))
u64 kvm_get_feature_msr(u64 msr_index);
ctrl = kvm_get_feature_msr(MSR_IA32_VMX_TRUE_PROCBASED_CTLS) >> 32;
ctrl = kvm_get_feature_msr(MSR_IA32_VMX_PROCBASED_CTLS2) >> 32;
const u64 supported_mask = kvm_get_feature_msr(msr);
host_cap.capabilities = kvm_get_feature_msr(MSR_IA32_PERF_CAPABILITIES);