kvm: x86: factor out kvm.arch.hyperv (de)init

Move kvm.arch.hyperv initialization and cleanup to separate functions.

For now only a mutex is inited in the former, and the latter is empty;
more stuff will go in there in a followup patch.

Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>

diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c
index dc97f25..015fb06 100644 (file)
--- a/arch/x86/kvm/hyperv.c
+++ b/arch/x86/kvm/hyperv.c
@@ -1301,3 +1301,12 @@ set_result:
        kvm_hv_hypercall_set_result(vcpu, ret);
        return 1;
 }
+
+void kvm_hv_init_vm(struct kvm *kvm)
+{
+       mutex_init(&kvm->arch.hyperv.hv_lock);
+}
+
+void kvm_hv_destroy_vm(struct kvm *kvm)
+{
+}

diff --git a/arch/x86/kvm/hyperv.h b/arch/x86/kvm/hyperv.h
index e637631..cc24682 100644 (file)
--- a/arch/x86/kvm/hyperv.h
+++ b/arch/x86/kvm/hyperv.h
@@ -88,4 +88,7 @@ void kvm_hv_process_stimers(struct kvm_vcpu *vcpu);
 void kvm_hv_setup_tsc_page(struct kvm *kvm,
                           struct pvclock_vcpu_time_info *hv_clock);
 
+void kvm_hv_init_vm(struct kvm *kvm);
+void kvm_hv_destroy_vm(struct kvm *kvm);
+
 #endif

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 18b5ca7..fee833c 100644 (file)
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -8447,7 +8447,6 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 
        raw_spin_lock_init(&kvm->arch.tsc_write_lock);
        mutex_init(&kvm->arch.apic_map_lock);
-       mutex_init(&kvm->arch.hyperv.hv_lock);
        spin_lock_init(&kvm->arch.pvclock_gtod_sync_lock);
 
        kvm->arch.kvmclock_offset = -ktime_get_boot_ns();
@@ -8456,6 +8455,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
        INIT_DELAYED_WORK(&kvm->arch.kvmclock_update_work, kvmclock_update_fn);
        INIT_DELAYED_WORK(&kvm->arch.kvmclock_sync_work, kvmclock_sync_fn);
 
+       kvm_hv_init_vm(kvm);
        kvm_page_track_init(kvm);
        kvm_mmu_init_vm(kvm);
 
@@ -8586,6 +8586,7 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
        kvfree(rcu_dereference_check(kvm->arch.apic_map, 1));
        kvm_mmu_uninit_vm(kvm);
        kvm_page_track_cleanup(kvm);
+       kvm_hv_destroy_vm(kvm);
 }
 
 void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,