void kvm_arch_exit(void)
{
#ifdef CONFIG_X86_64
	if (hypervisor_is_type(X86_HYPER_MS_HYPERV))
		clear_hv_tscchange_cb();
#endif
	kvm_lapic_exit();
	perf_unregister_guest_info_callbacks(&kvm_guest_cbs);

	if (!boot_cpu_has(X86_FEATURE_CONSTANT_TSC))
		cpufreq_unregister_notifier(&kvmclock_cpufreq_notifier_block,
					    CPUFREQ_TRANSITION_NOTIFIER);
	cpuhp_remove_state_nocalls(CPUHP_AP_X86_KVM_CLK_ONLINE);
#ifdef CONFIG_X86_64
	pvclock_gtod_unregister_notifier(&pvclock_gtod_notifier);
	irq_work_sync(&pvclock_irq_work);
	cancel_work_sync(&pvclock_gtod_work);
#endif
	kvm_x86_ops.hardware_enable = NULL;
	kvm_mmu_module_exit();
	free_percpu(user_return_msrs);
	kmem_cache_destroy(x86_emulator_cache);
#ifdef CONFIG_KVM_XEN
	static_key_deferred_flush(&kvm_xen_enabled);
	WARN_ON(static_branch_unlikely(&kvm_xen_enabled.key));
#endif
}
void kvm_arch_exit(void)
{
#ifdef CONFIG_X86_64
	if (hypervisor_is_type(X86_HYPER_MS_HYPERV))
		clear_hv_tscchange_cb();
#endif
	kvm_lapic_exit();
	perf_unregister_guest_info_callbacks(&kvm_guest_cbs);

	if (!boot_cpu_has(X86_FEATURE_CONSTANT_TSC))
		cpufreq_unregister_notifier(&kvmclock_cpufreq_notifier_block,
					    CPUFREQ_TRANSITION_NOTIFIER);
	cpuhp_remove_state_nocalls(CPUHP_AP_X86_KVM_CLK_ONLINE);
#ifdef CONFIG_X86_64
	pvclock_gtod_unregister_notifier(&pvclock_gtod_notifier);
	irq_work_sync(&pvclock_irq_work);
	cancel_work_sync(&pvclock_gtod_work);
#endif
	kvm_x86_ops.hardware_enable = NULL;
	kvm_mmu_module_exit();
	free_percpu(user_return_msrs);
	kmem_cache_destroy(x86_emulator_cache);
#ifdef CONFIG_KVM_XEN
	static_key_deferred_flush(&kvm_xen_enabled);
	WARN_ON(static_branch_unlikely(&kvm_xen_enabled.key));
#endif
}