KVM_PMU_CAP_DISABLE
#define KVM_CAP_PMU_VALID_MASK KVM_PMU_CAP_DISABLE
kvm->arch.enable_pmu = !(cap->args[0] & KVM_PMU_CAP_DISABLE);
if (!(r & KVM_PMU_CAP_DISABLE))
vm_enable_cap(vm, KVM_CAP_PMU_CAPABILITY, KVM_PMU_CAP_DISABLE);