[PATCH v2] vfio/migration: Rename entry points

[Alex Williamson <alex.williamson@redhat.com>]

Pick names that align with the section drivers should use them from,
avoiding the confusion of calling a _finalize() function from _exit()
and generalizing the actual _finalize() to handle removing the viommu
blocker.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
---

v2: ...but there's already a vfio_migration_exit(), it should really
    just be inlined, but for minimally invasive change, just rename to
    vfio_migration_free().

 hw/vfio/common.c              |    2 +-
 hw/vfio/migration.c           |    8 ++++----
 hw/vfio/pci.c                 |    6 +++---
 include/hw/vfio/vfio-common.h |    6 +++---
 4 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index 2b9bcf70aa36..dddd7a8e40f8 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -447,7 +447,7 @@ int vfio_block_giommu_migration(Error **errp)
     return ret;
 }
 
-void vfio_unblock_giommu_migration(void)
+void vfio_migration_finalize(void)
 {
     if (!giommu_migration_blocker ||
         vfio_viommu_preset()) {
diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c
index 5d1e66f69194..1a1a8659c859 100644
--- a/hw/vfio/migration.c
+++ b/hw/vfio/migration.c
@@ -521,7 +521,7 @@ static void vfio_migration_state_notifier(Notifier *notifier, void *data)
     }
 }
 
-static void vfio_migration_exit(VFIODevice *vbasedev)
+static void vfio_migration_free(VFIODevice *vbasedev)
 {
     g_free(vbasedev->migration);
     vbasedev->migration = NULL;
@@ -631,7 +631,7 @@ int64_t vfio_mig_bytes_transferred(void)
     return bytes_transferred;
 }
 
-int vfio_migration_probe(VFIODevice *vbasedev, Error **errp)
+int vfio_migration_realize(VFIODevice *vbasedev, Error **errp)
 {
     int ret = -ENOTSUP;
 
@@ -669,7 +669,7 @@ add_blocker:
     return ret;
 }
 
-void vfio_migration_finalize(VFIODevice *vbasedev)
+void vfio_migration_exit(VFIODevice *vbasedev)
 {
     if (vbasedev->migration) {
         VFIOMigration *migration = vbasedev->migration;
@@ -677,7 +677,7 @@ void vfio_migration_finalize(VFIODevice *vbasedev)
         remove_migration_state_change_notifier(&migration->migration_state);
         qemu_del_vm_change_state_handler(migration->vm_state);
         unregister_savevm(VMSTATE_IF(vbasedev->dev), "vfio", vbasedev);
-        vfio_migration_exit(vbasedev);
+        vfio_migration_free(vbasedev);
         vfio_unblock_multiple_devices_migration();
     }
 
diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c
index 30a271eab38c..ec9a854361ac 100644
--- a/hw/vfio/pci.c
+++ b/hw/vfio/pci.c
@@ -3145,7 +3145,7 @@ static void vfio_realize(PCIDevice *pdev, Error **errp)
     }
 
     if (!pdev->failover_pair_id) {
-        ret = vfio_migration_probe(vbasedev, errp);
+        ret = vfio_migration_realize(vbasedev, errp);
         if (ret) {
             error_report("%s: Migration disabled", vbasedev->name);
         }
@@ -3185,7 +3185,7 @@ static void vfio_instance_finalize(Object *obj)
      */
     vfio_put_device(vdev);
     vfio_put_group(group);
-    vfio_unblock_giommu_migration();
+    vfio_migration_finalize();
 }
 
 static void vfio_exitfn(PCIDevice *pdev)
@@ -3204,7 +3204,7 @@ static void vfio_exitfn(PCIDevice *pdev)
     }
     vfio_teardown_msi(vdev);
     vfio_bars_exit(vdev);
-    vfio_migration_finalize(&vdev->vbasedev);
+    vfio_migration_exit(&vdev->vbasedev);
 }
 
 static void vfio_pci_reset(DeviceState *dev)
diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h
index 009bec34c4bc..eed244f25f34 100644
--- a/include/hw/vfio/vfio-common.h
+++ b/include/hw/vfio/vfio-common.h
@@ -223,7 +223,6 @@ bool vfio_mig_active(void);
 int vfio_block_multiple_devices_migration(Error **errp);
 void vfio_unblock_multiple_devices_migration(void);
 int vfio_block_giommu_migration(Error **errp);
-void vfio_unblock_giommu_migration(void);
 int64_t vfio_mig_bytes_transferred(void);
 
 #ifdef CONFIG_LINUX
@@ -247,7 +246,8 @@ int vfio_spapr_create_window(VFIOContainer *container,
 int vfio_spapr_remove_window(VFIOContainer *container,
                              hwaddr offset_within_address_space);
 
-int vfio_migration_probe(VFIODevice *vbasedev, Error **errp);
-void vfio_migration_finalize(VFIODevice *vbasedev);
+int vfio_migration_realize(VFIODevice *vbasedev, Error **errp);
+void vfio_migration_exit(VFIODevice *vbasedev);
+void vfio_migration_finalize(void);
 
 #endif /* HW_VFIO_VFIO_COMMON_H */