From 06d3dff0723c712a4b109ced4243edf49ef850af Mon Sep 17 00:00:00 2001
From: Paolo Bonzini
Date: Fri, 20 Sep 2013 13:31:39 +0200
Subject: virtio-bus: remove vdev field

The vdev field is complicated to synchronize.  Just access the
BusState's list of children.

Cc: qemu-stable@nongnu.org
Acked-by: Andreas Faerber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 include/hw/virtio/virtio-bus.h | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

(limited to 'include/hw')

diff --git a/include/hw/virtio/virtio-bus.h b/include/hw/virtio/virtio-bus.h
index 9217f85abc..ba0f86abf1 100644
--- a/include/hw/virtio/virtio-bus.h
+++ b/include/hw/virtio/virtio-bus.h
@@ -72,10 +72,6 @@ typedef struct VirtioBusClass {
 
 struct VirtioBusState {
     BusState parent_obj;
-    /*
-     * Only one VirtIODevice can be plugged on the bus.
-     */
-    VirtIODevice *vdev;
 };
 
 int virtio_bus_plug_device(VirtIODevice *vdev);
@@ -98,4 +94,16 @@ void virtio_bus_get_vdev_config(VirtioBusState *bus, uint8_t *config);
 /* Set config of the plugged device. */
 void virtio_bus_set_vdev_config(VirtioBusState *bus, uint8_t *config);
 
+static inline VirtIODevice *virtio_bus_get_device(VirtioBusState *bus)
+{
+    BusState *qbus = &bus->parent_obj;
+    BusChild *kid = QTAILQ_FIRST(&qbus->children);
+    DeviceState *qdev = kid ? kid->child : NULL;
+
+    /* This is used on the data path, the cast is guaranteed
+     * to succeed by the qdev machinery.
+     */
+    return (VirtIODevice *)qdev;
+}
+
 #endif /* VIRTIO_BUS_H */
-- 
cgit v1.2.3-55-g7522


From 5e96f5d2f8d2696ef7d2d8d7282c18fa6023470b Mon Sep 17 00:00:00 2001
From: Paolo Bonzini
Date: Fri, 20 Sep 2013 13:59:08 +0200
Subject: virtio-bus: cleanup plug/unplug interface

Right now we have these pairs:

- virtio_bus_plug_device/virtio_bus_destroy_device.  The first
  takes a VirtIODevice, the second takes a VirtioBusState

- device_plugged/device_unplug callbacks in the VirtioBusClass
  (here it's just the naming that is inconsistent)

- virtio_bus_destroy_device is not called by anyone (and since
  it calls qdev_free, it would be called by the proxies---but
  then the callback is useless since the proxies can do whatever
  they want before calling virtio_bus_destroy_device)

And there is a k->init but no k->exit, hence virtio_device_exit is
overwritten by subclasses (except virtio-9p).  This cleans it up by:

- renaming the device_unplug callback to device_unplugged

- renaming virtio_bus_plug_device to virtio_bus_device_plugged,
  matching the callback name

- renaming virtio_bus_destroy_device to virtio_bus_device_unplugged,
  removing the qdev_free, making it take a VirtIODevice and calling it
  from virtio_device_exit

- adding a k->exit callback

virtio_device_exit is still overwritten, the next patches will fix that.

Cc: qemu-stable@nongnu.org
Acked-by: Andreas Faerber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/virtio/virtio-bus.c         | 19 +++++++++----------
 hw/virtio/virtio.c             |  7 ++++++-
 include/hw/virtio/virtio-bus.h |  6 +++---
 include/hw/virtio/virtio.h     |  1 +
 4 files changed, 19 insertions(+), 14 deletions(-)

(limited to 'include/hw')

diff --git a/hw/virtio/virtio-bus.c b/hw/virtio/virtio-bus.c
index 17dd06e1a1..eb77019267 100644
--- a/hw/virtio/virtio-bus.c
+++ b/hw/virtio/virtio-bus.c
@@ -37,8 +37,8 @@ do { printf("virtio_bus: " fmt , ## __VA_ARGS__); } while (0)
 #define DPRINTF(fmt, ...) do { } while (0)
 #endif
 
-/* Plug the VirtIODevice */
-int virtio_bus_plug_device(VirtIODevice *vdev)
+/* A VirtIODevice is being plugged */
+int virtio_bus_device_plugged(VirtIODevice *vdev)
 {
     DeviceState *qdev = DEVICE(vdev);
     BusState *qbus = BUS(qdev_get_parent_bus(qdev));
@@ -64,20 +64,19 @@ void virtio_bus_reset(VirtioBusState *bus)
     }
 }
 
-/* Destroy the VirtIODevice */
-void virtio_bus_destroy_device(VirtioBusState *bus)
+/* A VirtIODevice is being unplugged */
+void virtio_bus_device_unplugged(VirtIODevice *vdev)
 {
-    BusState *qbus = BUS(bus);
-    VirtioBusClass *klass = VIRTIO_BUS_GET_CLASS(bus);
-    VirtIODevice *vdev = virtio_bus_get_device(bus);
+    DeviceState *qdev = DEVICE(vdev);
+    BusState *qbus = BUS(qdev_get_parent_bus(qdev));
+    VirtioBusClass *klass = VIRTIO_BUS_GET_CLASS(qbus);
 
     DPRINTF("%s: remove device.\n", qbus->name);
 
     if (vdev != NULL) {
-        if (klass->device_unplug != NULL) {
-            klass->device_unplug(qbus->parent);
+        if (klass->device_unplugged != NULL) {
+            klass->device_unplugged(qbus->parent);
         }
-        object_unparent(OBJECT(vdev));
     }
 }
 
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 2f1e73bc75..965b2c0233 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -1158,14 +1158,19 @@ static int virtio_device_init(DeviceState *qdev)
     if (k->init(vdev) < 0) {
         return -1;
     }
-    virtio_bus_plug_device(vdev);
+    virtio_bus_device_plugged(vdev);
     return 0;
 }
 
 static int virtio_device_exit(DeviceState *qdev)
 {
     VirtIODevice *vdev = VIRTIO_DEVICE(qdev);
+    VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(qdev);
 
+    virtio_bus_device_unplugged(vdev);
+    if (k->exit) {
+        k->exit(vdev);
+    }
     if (vdev->bus_name) {
         g_free(vdev->bus_name);
         vdev->bus_name = NULL;
diff --git a/include/hw/virtio/virtio-bus.h b/include/hw/virtio/virtio-bus.h
index ba0f86abf1..0756545d4d 100644
--- a/include/hw/virtio/virtio-bus.h
+++ b/include/hw/virtio/virtio-bus.h
@@ -61,7 +61,7 @@ typedef struct VirtioBusClass {
      * transport independent exit function.
      * This is called by virtio-bus just before the device is unplugged.
      */
-    void (*device_unplug)(DeviceState *d);
+    void (*device_unplugged)(DeviceState *d);
     /*
      * Does the transport have variable vring alignment?
      * (ie can it ever call virtio_queue_set_align()?)
@@ -74,9 +74,9 @@ struct VirtioBusState {
     BusState parent_obj;
 };
 
-int virtio_bus_plug_device(VirtIODevice *vdev);
+int virtio_bus_device_plugged(VirtIODevice *vdev);
 void virtio_bus_reset(VirtioBusState *bus);
-void virtio_bus_destroy_device(VirtioBusState *bus);
+void virtio_bus_device_unplugged(VirtIODevice *bus);
 /* Get the device id of the plugged device. */
 uint16_t virtio_bus_get_vdev_id(VirtioBusState *bus);
 /* Get the config_len field of the plugged device. */
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index a90522d6d6..59756c29b9 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -127,6 +127,7 @@ typedef struct VirtioDeviceClass {
     /* This is what a VirtioDevice must implement */
     DeviceClass parent;
     int (*init)(VirtIODevice *vdev);
+    void (*exit)(VirtIODevice *vdev);
     uint32_t (*get_features)(VirtIODevice *vdev, uint32_t requested_features);
     uint32_t (*bad_features)(VirtIODevice *vdev);
     void (*set_features)(VirtIODevice *vdev, uint32_t val);
-- 
cgit v1.2.3-55-g7522


From e3c9d76acc984218264bbc6435b0c09f959ed9b8 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini
Date: Fri, 20 Sep 2013 14:06:08 +0200
Subject: virtio-scsi: switch exit callback to VirtioDeviceClass

This ensures hot-unplug is handled properly by the proxy, and avoids
leaking bus_name which is freed by virtio_device_exit.

Cc: qemu-stable@nongnu.org
Acked-by: Andreas Faerber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/scsi/vhost-scsi.c            | 11 +++++------
 hw/scsi/virtio-scsi.c           | 15 +++++++--------
 include/hw/virtio/virtio-scsi.h |  2 +-
 3 files changed, 13 insertions(+), 15 deletions(-)

(limited to 'include/hw')

diff --git a/hw/scsi/vhost-scsi.c b/hw/scsi/vhost-scsi.c
index 9e770fba98..5e3cc614c9 100644
--- a/hw/scsi/vhost-scsi.c
+++ b/hw/scsi/vhost-scsi.c
@@ -240,11 +240,10 @@ static int vhost_scsi_init(VirtIODevice *vdev)
     return 0;
 }
 
-static int vhost_scsi_exit(DeviceState *qdev)
+static void vhost_scsi_exit(VirtIODevice *vdev)
 {
-    VirtIODevice *vdev = VIRTIO_DEVICE(qdev);
-    VHostSCSI *s = VHOST_SCSI(qdev);
-    VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(qdev);
+    VHostSCSI *s = VHOST_SCSI(vdev);
+    VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev);
 
     migrate_del_blocker(s->migration_blocker);
     error_free(s->migration_blocker);
@@ -253,7 +252,7 @@ static int vhost_scsi_exit(DeviceState *qdev)
     vhost_scsi_set_status(vdev, 0);
 
     g_free(s->dev.vqs);
-    return virtio_scsi_common_exit(vs);
+    virtio_scsi_common_exit(vs);
 }
 
 static Property vhost_scsi_properties[] = {
@@ -265,10 +264,10 @@ static void vhost_scsi_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
-    dc->exit = vhost_scsi_exit;
     dc->props = vhost_scsi_properties;
     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
     vdc->init = vhost_scsi_init;
+    vdc->exit = vhost_scsi_exit;
     vdc->get_features = vhost_scsi_get_features;
     vdc->set_config = vhost_scsi_set_config;
     vdc->set_status = vhost_scsi_set_status;
diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c
index 26d95a14ec..83344eacc0 100644
--- a/hw/scsi/virtio-scsi.c
+++ b/hw/scsi/virtio-scsi.c
@@ -644,22 +644,21 @@ static int virtio_scsi_device_init(VirtIODevice *vdev)
     return 0;
 }
 
-int virtio_scsi_common_exit(VirtIOSCSICommon *vs)
+void virtio_scsi_common_exit(VirtIOSCSICommon *vs)
 {
     VirtIODevice *vdev = VIRTIO_DEVICE(vs);
 
     g_free(vs->cmd_vqs);
     virtio_cleanup(vdev);
-    return 0;
 }
 
-static int virtio_scsi_device_exit(DeviceState *qdev)
+static void virtio_scsi_device_exit(VirtIODevice *vdev)
 {
-    VirtIOSCSI *s = VIRTIO_SCSI(qdev);
-    VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(qdev);
+    VirtIOSCSI *s = VIRTIO_SCSI(vdev);
+    VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev);
 
-    unregister_savevm(qdev, "virtio-scsi", s);
-    return virtio_scsi_common_exit(vs);
+    unregister_savevm(DEVICE(vdev), "virtio-scsi", s);
+    virtio_scsi_common_exit(vs);
 }
 
 static Property virtio_scsi_properties[] = {
@@ -680,10 +679,10 @@ static void virtio_scsi_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
-    dc->exit = virtio_scsi_device_exit;
     dc->props = virtio_scsi_properties;
     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
     vdc->init = virtio_scsi_device_init;
+    vdc->exit = virtio_scsi_device_exit;
     vdc->set_config = virtio_scsi_set_config;
     vdc->get_features = virtio_scsi_get_features;
     vdc->reset = virtio_scsi_reset;
diff --git a/include/hw/virtio/virtio-scsi.h b/include/hw/virtio/virtio-scsi.h
index 9a985403c2..206c61dbfd 100644
--- a/include/hw/virtio/virtio-scsi.h
+++ b/include/hw/virtio/virtio-scsi.h
@@ -187,6 +187,6 @@ typedef struct {
                                             VIRTIO_SCSI_F_CHANGE, true)
 
 int virtio_scsi_common_init(VirtIOSCSICommon *vs);
-int virtio_scsi_common_exit(VirtIOSCSICommon *vs);
+void virtio_scsi_common_exit(VirtIOSCSICommon *vs);
 
 #endif /* _QEMU_VIRTIO_SCSI_H */
-- 
cgit v1.2.3-55-g7522


From 1d244b42d200c02ad60eb564c75d8adea9243366 Mon Sep 17 00:00:00 2001
From: Andreas Färber
Date: Tue, 30 Jul 2013 00:50:27 +0200
Subject: virtio: Start converting VirtioDevice to QOM realize

Temporarily allow either VirtioDeviceClass::init or
VirtioDeviceClass::realize.

Introduce VirtioDeviceClass::unrealize for symmetry.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/virtio/virtio.c         | 42 +++++++++++++++++++++++++++---------------
 include/hw/virtio/virtio.h |  4 +++-
 2 files changed, 30 insertions(+), 16 deletions(-)

(limited to 'include/hw')

diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 965b2c0233..4070b37d64 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -1150,40 +1150,52 @@ void virtio_device_set_child_bus_name(VirtIODevice *vdev, char *bus_name)
     }
 }
 
-static int virtio_device_init(DeviceState *qdev)
-{
-    VirtIODevice *vdev = VIRTIO_DEVICE(qdev);
-    VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(qdev);
-    assert(k->init != NULL);
-    if (k->init(vdev) < 0) {
-        return -1;
+static void virtio_device_realize(DeviceState *dev, Error **errp)
+{
+    VirtIODevice *vdev = VIRTIO_DEVICE(dev);
+    VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(dev);
+    Error *err = NULL;
+
+    assert(vdc->init != NULL || vdc->realize != NULL);
+    if (vdc->realize != NULL) {
+        vdc->realize(dev, &err);
+        if (err != NULL) {
+            error_propagate(errp, err);
+            return;
+        }
+    } else {
+        if (vdc->init(vdev) < 0) {
+            error_setg(errp, "Device initialization failed.");
+            return;
+        }
     }
     virtio_bus_device_plugged(vdev);
-    return 0;
 }
 
-static int virtio_device_exit(DeviceState *qdev)
+static void virtio_device_unrealize(DeviceState *dev, Error **errp)
 {
-    VirtIODevice *vdev = VIRTIO_DEVICE(qdev);
-    VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(qdev);
+    VirtIODevice *vdev = VIRTIO_DEVICE(dev);
+    VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(dev);
 
     virtio_bus_device_unplugged(vdev);
-    if (k->exit) {
+
+    if (k->exit != NULL) {
         k->exit(vdev);
     }
+
     if (vdev->bus_name) {
         g_free(vdev->bus_name);
         vdev->bus_name = NULL;
     }
-    return 0;
 }
 
 static void virtio_device_class_init(ObjectClass *klass, void *data)
 {
     /* Set the default value here. */
     DeviceClass *dc = DEVICE_CLASS(klass);
-    dc->init = virtio_device_init;
-    dc->exit = virtio_device_exit;
+
+    dc->realize = virtio_device_realize;
+    dc->unrealize = virtio_device_unrealize;
     dc->bus_type = TYPE_VIRTIO_BUS;
 }
 
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index 59756c29b9..54c5efe4d0 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -124,10 +124,12 @@ struct VirtIODevice
 };
 
 typedef struct VirtioDeviceClass {
-    /* This is what a VirtioDevice must implement */
     DeviceClass parent;
+
+    /* This is what a VirtioDevice must implement */
     int (*init)(VirtIODevice *vdev);
     void (*exit)(VirtIODevice *vdev);
+    DeviceRealize realize;
     uint32_t (*get_features)(VirtIODevice *vdev, uint32_t requested_features);
     uint32_t (*bad_features)(VirtIODevice *vdev);
     void (*set_features)(VirtIODevice *vdev, uint32_t val);
-- 
cgit v1.2.3-55-g7522


From a8d57dfb28bd8fd8ebddf08d0cfafdcb61a764fb Mon Sep 17 00:00:00 2001
From: Andreas Färber
Date: Tue, 30 Jul 2013 02:57:37 +0200
Subject: virtio-rng: Convert to QOM realize

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/virtio/virtio-rng.c         | 24 +++++++++++-------------
 include/hw/virtio/virtio-rng.h |  2 ++
 2 files changed, 13 insertions(+), 13 deletions(-)

(limited to 'include/hw')

diff --git a/hw/virtio/virtio-rng.c b/hw/virtio/virtio-rng.c
index 9e2a66a635..fd61cb2edf 100644
--- a/hw/virtio/virtio-rng.c
+++ b/hw/virtio/virtio-rng.c
@@ -133,16 +133,16 @@ static void check_rate_limit(void *opaque)
                    qemu_clock_get_ms(QEMU_CLOCK_VIRTUAL) + vrng->conf.period_ms);
 }
 
-static int virtio_rng_device_init(VirtIODevice *vdev)
+static void virtio_rng_device_realize(DeviceState *dev, Error **errp)
 {
-    DeviceState *dev = DEVICE(vdev);
+    VirtIODevice *vdev = VIRTIO_DEVICE(dev);
     VirtIORNG *vrng = VIRTIO_RNG(dev);
     Error *local_err = NULL;
 
     if (!vrng->conf.period_ms > 0) {
-        qerror_report(QERR_INVALID_PARAMETER_VALUE, "period",
-                      "a positive number");
-        return -1;
+        error_set(errp, QERR_INVALID_PARAMETER_VALUE, "period",
+                  "a positive number");
+        return;
     }
 
     if (vrng->conf.rng == NULL) {
@@ -162,15 +162,14 @@ static int virtio_rng_device_init(VirtIODevice *vdev)
 
     vrng->rng = vrng->conf.rng;
     if (vrng->rng == NULL) {
-        qerror_report(QERR_INVALID_PARAMETER_VALUE, "rng", "a valid object");
-        return -1;
+        error_set(errp, QERR_INVALID_PARAMETER_VALUE, "rng", "a valid object");
+        return;
     }
 
     rng_backend_open(vrng->rng, &local_err);
     if (local_err) {
-        qerror_report_err(local_err);
-        error_free(local_err);
-        return -1;
+        error_propagate(errp, local_err);
+        return;
     }
 
     vrng->vq = virtio_add_queue(vdev, 8, handle_input);
@@ -186,8 +185,6 @@ static int virtio_rng_device_init(VirtIODevice *vdev)
 
     register_savevm(dev, "virtio-rng", -1, 1, virtio_rng_save,
                     virtio_rng_load, vrng);
-
-    return 0;
 }
 
 static void virtio_rng_device_exit(VirtIODevice *vdev)
@@ -209,9 +206,10 @@ static void virtio_rng_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
+
     dc->props = virtio_rng_properties;
     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
-    vdc->init = virtio_rng_device_init;
+    vdc->realize = virtio_rng_device_realize;
     vdc->exit = virtio_rng_device_exit;
     vdc->get_features = get_features;
 }
diff --git a/include/hw/virtio/virtio-rng.h b/include/hw/virtio/virtio-rng.h
index debaa15d5a..14e85a5a3a 100644
--- a/include/hw/virtio/virtio-rng.h
+++ b/include/hw/virtio/virtio-rng.h
@@ -18,6 +18,8 @@
 #define TYPE_VIRTIO_RNG "virtio-rng-device"
 #define VIRTIO_RNG(obj) \
         OBJECT_CHECK(VirtIORNG, (obj), TYPE_VIRTIO_RNG)
+#define VIRTIO_RNG_GET_PARENT_CLASS(obj) \
+        OBJECT_GET_PARENT_CLASS(obj, TYPE_VIRTIO_RNG)
 
 /* The Virtio ID for the virtio rng device */
 #define VIRTIO_ID_RNG    4
-- 
cgit v1.2.3-55-g7522


From 71a6520b83414b4ebe3ecfdee3dc3a70db98c91f Mon Sep 17 00:00:00 2001
From: Andreas Färber
Date: Tue, 30 Jul 2013 03:19:55 +0200
Subject: virtio-scsi: Convert to QOM realize

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/scsi/vhost-scsi.c            | 33 +++++++++++++++++----------------
 hw/scsi/virtio-scsi.c           | 32 +++++++++++++++-----------------
 include/hw/virtio/virtio-scsi.h |  2 +-
 3 files changed, 33 insertions(+), 34 deletions(-)

(limited to 'include/hw')

diff --git a/hw/scsi/vhost-scsi.c b/hw/scsi/vhost-scsi.c
index 5e3cc614c9..1f1c9f3421 100644
--- a/hw/scsi/vhost-scsi.c
+++ b/hw/scsi/vhost-scsi.c
@@ -196,29 +196,31 @@ static void vhost_scsi_set_status(VirtIODevice *vdev, uint8_t val)
     }
 }
 
-static int vhost_scsi_init(VirtIODevice *vdev)
+static void vhost_scsi_realize(DeviceState *dev, Error **errp)
 {
-    VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev);
-    VHostSCSI *s = VHOST_SCSI(vdev);
+    VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(dev);
+    VHostSCSI *s = VHOST_SCSI(dev);
+    Error *err = NULL;
     int vhostfd = -1;
     int ret;
 
     if (!vs->conf.wwpn) {
-        error_report("vhost-scsi: missing wwpn\n");
-        return -EINVAL;
+        error_setg(errp, "vhost-scsi: missing wwpn");
+        return;
     }
 
     if (vs->conf.vhostfd) {
         vhostfd = monitor_handle_fd_param(cur_mon, vs->conf.vhostfd);
         if (vhostfd == -1) {
-            error_report("vhost-scsi: unable to parse vhostfd\n");
-            return -EINVAL;
+            error_setg(errp, "vhost-scsi: unable to parse vhostfd");
+            return;
         }
     }
 
-    ret = virtio_scsi_common_init(vs);
-    if (ret < 0) {
-        return ret;
+    virtio_scsi_common_realize(dev, &err);
+    if (err != NULL) {
+        error_propagate(errp, err);
+        return;
     }
 
     s->dev.nvqs = VHOST_SCSI_VQ_NUM_FIXED + vs->conf.num_queues;
@@ -227,17 +229,15 @@ static int vhost_scsi_init(VirtIODevice *vdev)
 
     ret = vhost_dev_init(&s->dev, vhostfd, "/dev/vhost-scsi", true);
     if (ret < 0) {
-        error_report("vhost-scsi: vhost initialization failed: %s\n",
-                strerror(-ret));
-        return ret;
+        error_setg(errp, "vhost-scsi: vhost initialization failed: %s",
+                   strerror(-ret));
+        return;
     }
     s->dev.backend_features = 0;
 
     error_setg(&s->migration_blocker,
             "vhost-scsi does not support migration");
     migrate_add_blocker(s->migration_blocker);
-
-    return 0;
 }
 
 static void vhost_scsi_exit(VirtIODevice *vdev)
@@ -264,9 +264,10 @@ static void vhost_scsi_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
+
     dc->props = vhost_scsi_properties;
     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
-    vdc->init = vhost_scsi_init;
+    vdc->realize = vhost_scsi_realize;
     vdc->exit = vhost_scsi_exit;
     vdc->get_features = vhost_scsi_get_features;
     vdc->set_config = vhost_scsi_set_config;
diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c
index a5b957d3c3..0a41ddb6c1 100644
--- a/hw/scsi/virtio-scsi.c
+++ b/hw/scsi/virtio-scsi.c
@@ -589,9 +589,10 @@ static struct SCSIBusInfo virtio_scsi_scsi_info = {
     .load_request = virtio_scsi_load_request,
 };
 
-int virtio_scsi_common_init(VirtIOSCSICommon *s)
+void virtio_scsi_common_realize(DeviceState *dev, Error **errp)
 {
-    VirtIODevice *vdev = VIRTIO_DEVICE(s);
+    VirtIODevice *vdev = VIRTIO_DEVICE(dev);
+    VirtIOSCSICommon *s = VIRTIO_SCSI_COMMON(dev);
     int i;
 
     virtio_init(vdev, "virtio-scsi", VIRTIO_ID_SCSI,
@@ -609,22 +610,19 @@ int virtio_scsi_common_init(VirtIOSCSICommon *s)
         s->cmd_vqs[i] = virtio_add_queue(vdev, VIRTIO_SCSI_VQ_SIZE,
                                          virtio_scsi_handle_cmd);
     }
-
-    return 0;
 }
 
-static int virtio_scsi_device_init(VirtIODevice *vdev)
+static void virtio_scsi_device_realize(DeviceState *dev, Error **errp)
 {
-    DeviceState *dev = DEVICE(vdev);
-    VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(dev);
+    VirtIODevice *vdev = VIRTIO_DEVICE(dev);
     VirtIOSCSI *s = VIRTIO_SCSI(dev);
     static int virtio_scsi_id;
     Error *err = NULL;
-    int ret;
 
-    ret = virtio_scsi_common_init(vs);
-    if (ret < 0) {
-        return ret;
+    virtio_scsi_common_realize(dev, &err);
+    if (err != NULL) {
+        error_propagate(errp, err);
+        return;
     }
 
     scsi_bus_new(&s->bus, sizeof(s->bus), dev,
@@ -633,20 +631,19 @@ static int virtio_scsi_device_init(VirtIODevice *vdev)
     if (!dev->hotplugged) {
         scsi_bus_legacy_handle_cmdline(&s->bus, &err);
         if (err != NULL) {
-            error_free(err);
-            return -1;
+            error_propagate(errp, err);
+            return;
         }
     }
 
     register_savevm(dev, "virtio-scsi", virtio_scsi_id++, 1,
                     virtio_scsi_save, virtio_scsi_load, s);
-
-    return 0;
 }
 
 void virtio_scsi_common_exit(VirtIOSCSICommon *vs)
 {
-    VirtIODevice *vdev = VIRTIO_DEVICE(vs);
+    VirtIODevice *vdev = VIRTIO_DEVICE(dev);
+    VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(dev);
 
     g_free(vs->cmd_vqs);
     virtio_cleanup(vdev);
@@ -679,9 +676,10 @@ static void virtio_scsi_class_init(ObjectClass *klass, void *data)
 {
     DeviceClass *dc = DEVICE_CLASS(klass);
     VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
+
     dc->props = virtio_scsi_properties;
     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
-    vdc->init = virtio_scsi_device_init;
+    vdc->realize = virtio_scsi_device_realize;
     vdc->exit = virtio_scsi_device_exit;
     vdc->set_config = virtio_scsi_set_config;
     vdc->get_features = virtio_scsi_get_features;
diff --git a/include/hw/virtio/virtio-scsi.h b/include/hw/virtio/virtio-scsi.h
index 206c61dbfd..da343f1893 100644
--- a/include/hw/virtio/virtio-scsi.h
+++ b/include/hw/virtio/virtio-scsi.h
@@ -186,7 +186,7 @@ typedef struct {
     DEFINE_PROP_BIT("param_change", _state, _feature_field,                    \
                                             VIRTIO_SCSI_F_CHANGE, true)
 
-int virtio_scsi_common_init(VirtIOSCSICommon *vs);
+void virtio_scsi_common_realize(DeviceState *dev, Error **errp);
 void virtio_scsi_common_exit(VirtIOSCSICommon *vs);
 
 #endif /* _QEMU_VIRTIO_SCSI_H */
-- 
cgit v1.2.3-55-g7522


From 0ba94b6f94a5b0bed9f125ce4c3348adc83db5de Mon Sep 17 00:00:00 2001
From: Andreas Färber
Date: Tue, 30 Jul 2013 04:05:02 +0200
Subject: virtio: Complete converting VirtioDevice to QOM realize

Drop VirtioDeviceClass::init.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/scsi/virtio-scsi.c      | 3 +--
 hw/virtio/virtio.c         | 6 ------
 include/hw/virtio/virtio.h | 5 +++--
 3 files changed, 4 insertions(+), 10 deletions(-)

(limited to 'include/hw')

diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c
index 0a41ddb6c1..a208cf3d89 100644
--- a/hw/scsi/virtio-scsi.c
+++ b/hw/scsi/virtio-scsi.c
@@ -642,8 +642,7 @@ static void virtio_scsi_device_realize(DeviceState *dev, Error **errp)
 
 void virtio_scsi_common_exit(VirtIOSCSICommon *vs)
 {
-    VirtIODevice *vdev = VIRTIO_DEVICE(dev);
-    VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(dev);
+    VirtIODevice *vdev = VIRTIO_DEVICE(vs);
 
     g_free(vs->cmd_vqs);
     virtio_cleanup(vdev);
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 4070b37d64..1dba284e4a 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -1156,18 +1156,12 @@ static void virtio_device_realize(DeviceState *dev, Error **errp)
     VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(dev);
     Error *err = NULL;
 
-    assert(vdc->init != NULL || vdc->realize != NULL);
     if (vdc->realize != NULL) {
         vdc->realize(dev, &err);
         if (err != NULL) {
             error_propagate(errp, err);
             return;
         }
-    } else {
-        if (vdc->init(vdev) < 0) {
-            error_setg(errp, "Device initialization failed.");
-            return;
-        }
     }
     virtio_bus_device_plugged(vdev);
 }
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index 54c5efe4d0..6da88c0f41 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -124,12 +124,13 @@ struct VirtIODevice
 };
 
 typedef struct VirtioDeviceClass {
+    /*< private >*/
     DeviceClass parent;
+    /*< public >*/
 
     /* This is what a VirtioDevice must implement */
-    int (*init)(VirtIODevice *vdev);
-    void (*exit)(VirtIODevice *vdev);
     DeviceRealize realize;
+    void (*exit)(VirtIODevice *vdev);
     uint32_t (*get_features)(VirtIODevice *vdev, uint32_t requested_features);
     uint32_t (*bad_features)(VirtIODevice *vdev);
     void (*set_features)(VirtIODevice *vdev, uint32_t val);
-- 
cgit v1.2.3-55-g7522


From 306ec6c3cece7004429c79c1ac93d49919f1f1cc Mon Sep 17 00:00:00 2001
From: Andreas Färber
Date: Tue, 30 Jul 2013 03:50:44 +0200
Subject: virtio: Convert exit to unrealize

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/block/virtio-blk.c           | 10 ++++++----
 hw/char/virtio-serial-bus.c     |  9 +++++----
 hw/net/virtio-net.c             |  9 +++++----
 hw/scsi/vhost-scsi.c            | 11 ++++++-----
 hw/scsi/virtio-scsi.c           | 17 +++++++++--------
 hw/virtio/virtio-balloon.c      |  9 +++++----
 hw/virtio/virtio-rng.c          |  9 +++++----
 hw/virtio/virtio.c              | 13 ++++++++-----
 include/hw/virtio/virtio-scsi.h |  2 +-
 include/hw/virtio/virtio.h      |  2 +-
 10 files changed, 51 insertions(+), 40 deletions(-)

(limited to 'include/hw')

diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
index cb29fdb3f0..19d0961a47 100644
--- a/hw/block/virtio-blk.c
+++ b/hw/block/virtio-blk.c
@@ -738,16 +738,18 @@ static void virtio_blk_device_realize(DeviceState *dev, Error **errp)
     add_boot_device_path(s->conf->bootindex, dev, "/disk@0,0");
 }
 
-static void virtio_blk_device_exit(VirtIODevice *vdev)
+static void virtio_blk_device_unrealize(DeviceState *dev, Error **errp)
 {
-    VirtIOBlock *s = VIRTIO_BLK(vdev);
+    VirtIODevice *vdev = VIRTIO_DEVICE(dev);
+    VirtIOBlock *s = VIRTIO_BLK(dev);
+
 #ifdef CONFIG_VIRTIO_BLK_DATA_PLANE
     remove_migration_state_change_notifier(&s->migration_state_notifier);
     virtio_blk_data_plane_destroy(s->dataplane);
     s->dataplane = NULL;
 #endif
     qemu_del_vm_change_state_handler(s->change);
-    unregister_savevm(DEVICE(vdev), "virtio-blk", s);
+    unregister_savevm(dev, "virtio-blk", s);
     blockdev_mark_auto_del(s->bs);
     virtio_cleanup(vdev);
 }
@@ -765,7 +767,7 @@ static void virtio_blk_class_init(ObjectClass *klass, void *data)
     dc->props = virtio_blk_properties;
     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
     vdc->realize = virtio_blk_device_realize;
-    vdc->exit = virtio_blk_device_exit;
+    vdc->unrealize = virtio_blk_device_unrealize;
     vdc->get_config = virtio_blk_update_config;
     vdc->set_config = virtio_blk_set_config;
     vdc->get_features = virtio_blk_get_features;
diff --git a/hw/char/virtio-serial-bus.c b/hw/char/virtio-serial-bus.c
index df9611703a..226e9f9a3c 100644
--- a/hw/char/virtio-serial-bus.c
+++ b/hw/char/virtio-serial-bus.c
@@ -988,11 +988,12 @@ static const TypeInfo virtio_serial_port_type_info = {
     .class_init = virtio_serial_port_class_init,
 };
 
-static void virtio_serial_device_exit(VirtIODevice *vdev)
+static void virtio_serial_device_unrealize(DeviceState *dev, Error **errp)
 {
-    VirtIOSerial *vser = VIRTIO_SERIAL(vdev);
+    VirtIODevice *vdev = VIRTIO_DEVICE(dev);
+    VirtIOSerial *vser = VIRTIO_SERIAL(dev);
 
-    unregister_savevm(DEVICE(vdev), "virtio-console", vser);
+    unregister_savevm(dev, "virtio-console", vser);
 
     g_free(vser->ivqs);
     g_free(vser->ovqs);
@@ -1019,7 +1020,7 @@ static void virtio_serial_class_init(ObjectClass *klass, void *data)
     dc->props = virtio_serial_properties;
     set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
     vdc->realize = virtio_serial_device_realize;
-    vdc->exit = virtio_serial_device_exit;
+    vdc->unrealize = virtio_serial_device_unrealize;
     vdc->get_features = get_features;
     vdc->get_config = get_config;
     vdc->set_config = set_config;
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index d9e4b8a5ab..2b193bf6df 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -1567,15 +1567,16 @@ static void virtio_net_device_realize(DeviceState *dev, Error **errp)
     add_boot_device_path(n->nic_conf.bootindex, dev, "/ethernet-phy@0");
 }
 
-static void virtio_net_device_exit(VirtIODevice *vdev)
+static void virtio_net_device_unrealize(DeviceState *dev, Error **errp)
 {
-    VirtIONet *n = VIRTIO_NET(vdev);
+    VirtIODevice *vdev = VIRTIO_DEVICE(dev);
+    VirtIONet *n = VIRTIO_NET(dev);
     int i;
 
     /* This will stop vhost backend if appropriate. */
     virtio_net_set_status(vdev, 0);
 
-    unregister_savevm(DEVICE(vdev), "virtio-net", n);
+    unregister_savevm(dev, "virtio-net", n);
 
     if (n->netclient_name) {
         g_free(n->netclient_name);
@@ -1636,7 +1637,7 @@ static void virtio_net_class_init(ObjectClass *klass, void *data)
     dc->props = virtio_net_properties;
     set_bit(DEVICE_CATEGORY_NETWORK, dc->categories);
     vdc->realize = virtio_net_device_realize;
-    vdc->exit = virtio_net_device_exit;
+    vdc->unrealize = virtio_net_device_unrealize;
     vdc->get_config = virtio_net_get_config;
     vdc->set_config = virtio_net_set_config;
     vdc->get_features = virtio_net_get_features;
diff --git a/hw/scsi/vhost-scsi.c b/hw/scsi/vhost-scsi.c
index 1f1c9f3421..3983a5b464 100644
--- a/hw/scsi/vhost-scsi.c
+++ b/hw/scsi/vhost-scsi.c
@@ -240,10 +240,10 @@ static void vhost_scsi_realize(DeviceState *dev, Error **errp)
     migrate_add_blocker(s->migration_blocker);
 }
 
-static void vhost_scsi_exit(VirtIODevice *vdev)
+static void vhost_scsi_unrealize(DeviceState *dev, Error **errp)
 {
-    VHostSCSI *s = VHOST_SCSI(vdev);
-    VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev);
+    VirtIODevice *vdev = VIRTIO_DEVICE(dev);
+    VHostSCSI *s = VHOST_SCSI(dev);
 
     migrate_del_blocker(s->migration_blocker);
     error_free(s->migration_blocker);
@@ -252,7 +252,8 @@ static void vhost_scsi_exit(VirtIODevice *vdev)
     vhost_scsi_set_status(vdev, 0);
 
     g_free(s->dev.vqs);
-    virtio_scsi_common_exit(vs);
+
+    virtio_scsi_common_unrealize(dev, errp);
 }
 
 static Property vhost_scsi_properties[] = {
@@ -268,7 +269,7 @@ static void vhost_scsi_class_init(ObjectClass *klass, void *data)
     dc->props = vhost_scsi_properties;
     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
     vdc->realize = vhost_scsi_realize;
-    vdc->exit = vhost_scsi_exit;
+    vdc->unrealize = vhost_scsi_unrealize;
     vdc->get_features = vhost_scsi_get_features;
     vdc->set_config = vhost_scsi_set_config;
     vdc->set_status = vhost_scsi_set_status;
diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c
index a208cf3d89..6dcdd1b91c 100644
--- a/hw/scsi/virtio-scsi.c
+++ b/hw/scsi/virtio-scsi.c
@@ -640,21 +640,22 @@ static void virtio_scsi_device_realize(DeviceState *dev, Error **errp)
                     virtio_scsi_save, virtio_scsi_load, s);
 }
 
-void virtio_scsi_common_exit(VirtIOSCSICommon *vs)
+void virtio_scsi_common_unrealize(DeviceState *dev, Error **errp)
 {
-    VirtIODevice *vdev = VIRTIO_DEVICE(vs);
+    VirtIODevice *vdev = VIRTIO_DEVICE(dev);
+    VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(dev);
 
     g_free(vs->cmd_vqs);
     virtio_cleanup(vdev);
 }
 
-static void virtio_scsi_device_exit(VirtIODevice *vdev)
+static void virtio_scsi_device_unrealize(DeviceState *dev, Error **errp)
 {
-    VirtIOSCSI *s = VIRTIO_SCSI(vdev);
-    VirtIOSCSICommon *vs = VIRTIO_SCSI_COMMON(vdev);
+    VirtIOSCSI *s = VIRTIO_SCSI(dev);
+
+    unregister_savevm(dev, "virtio-scsi", s);
 
-    unregister_savevm(DEVICE(vdev), "virtio-scsi", s);
-    virtio_scsi_common_exit(vs);
+    virtio_scsi_common_unrealize(dev, errp);
 }
 
 static Property virtio_scsi_properties[] = {
@@ -679,7 +680,7 @@ static void virtio_scsi_class_init(ObjectClass *klass, void *data)
     dc->props = virtio_scsi_properties;
     set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
     vdc->realize = virtio_scsi_device_realize;
-    vdc->exit = virtio_scsi_device_exit;
+    vdc->unrealize = virtio_scsi_device_unrealize;
     vdc->set_config = virtio_scsi_set_config;
     vdc->get_features = virtio_scsi_get_features;
     vdc->reset = virtio_scsi_reset;
diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c
index 755e188fdb..d9754dbd33 100644
--- a/hw/virtio/virtio-balloon.c
+++ b/hw/virtio/virtio-balloon.c
@@ -370,13 +370,14 @@ static void virtio_balloon_device_realize(DeviceState *dev, Error **errp)
                         NULL, s, NULL);
 }
 
-static void virtio_balloon_device_exit(VirtIODevice *vdev)
+static void virtio_balloon_device_unrealize(DeviceState *dev, Error **errp)
 {
-    VirtIOBalloon *s = VIRTIO_BALLOON(vdev);
+    VirtIODevice *vdev = VIRTIO_DEVICE(dev);
+    VirtIOBalloon *s = VIRTIO_BALLOON(dev);
 
     balloon_stats_destroy_timer(s);
     qemu_remove_balloon_handler(s);
-    unregister_savevm(DEVICE(vdev), "virtio-balloon", s);
+    unregister_savevm(dev, "virtio-balloon", s);
     virtio_cleanup(vdev);
 }
 
@@ -392,7 +393,7 @@ static void virtio_balloon_class_init(ObjectClass *klass, void *data)
     dc->props = virtio_balloon_properties;
     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
     vdc->realize = virtio_balloon_device_realize;
-    vdc->exit = virtio_balloon_device_exit;
+    vdc->unrealize = virtio_balloon_device_unrealize;
     vdc->get_config = virtio_balloon_get_config;
     vdc->set_config = virtio_balloon_set_config;
     vdc->get_features = virtio_balloon_get_features;
diff --git a/hw/virtio/virtio-rng.c b/hw/virtio/virtio-rng.c
index fd61cb2edf..755fdee628 100644
--- a/hw/virtio/virtio-rng.c
+++ b/hw/virtio/virtio-rng.c
@@ -187,13 +187,14 @@ static void virtio_rng_device_realize(DeviceState *dev, Error **errp)
                     virtio_rng_load, vrng);
 }
 
-static void virtio_rng_device_exit(VirtIODevice *vdev)
+static void virtio_rng_device_unrealize(DeviceState *dev, Error **errp)
 {
-    VirtIORNG *vrng = VIRTIO_RNG(vdev);
+    VirtIODevice *vdev = VIRTIO_DEVICE(dev);
+    VirtIORNG *vrng = VIRTIO_RNG(dev);
 
     timer_del(vrng->rate_limit_timer);
     timer_free(vrng->rate_limit_timer);
-    unregister_savevm(DEVICE(vdev), "virtio-rng", vrng);
+    unregister_savevm(dev, "virtio-rng", vrng);
     virtio_cleanup(vdev);
 }
 
@@ -210,7 +211,7 @@ static void virtio_rng_class_init(ObjectClass *klass, void *data)
     dc->props = virtio_rng_properties;
     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
     vdc->realize = virtio_rng_device_realize;
-    vdc->exit = virtio_rng_device_exit;
+    vdc->unrealize = virtio_rng_device_unrealize;
     vdc->get_features = get_features;
 }
 
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 1dba284e4a..144b9ca2ef 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -1169,12 +1169,15 @@ static void virtio_device_realize(DeviceState *dev, Error **errp)
 static void virtio_device_unrealize(DeviceState *dev, Error **errp)
 {
     VirtIODevice *vdev = VIRTIO_DEVICE(dev);
-    VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(dev);
-
-    virtio_bus_device_unplugged(vdev);
+    VirtioDeviceClass *vdc = VIRTIO_DEVICE_GET_CLASS(dev);
+    Error *err = NULL;
 
-    if (k->exit != NULL) {
-        k->exit(vdev);
+    if (vdc->unrealize != NULL) {
+        vdc->unrealize(dev, &err);
+        if (err != NULL) {
+            error_propagate(errp, err);
+            return;
+        }
     }
 
     if (vdev->bus_name) {
diff --git a/include/hw/virtio/virtio-scsi.h b/include/hw/virtio/virtio-scsi.h
index da343f1893..42b102487a 100644
--- a/include/hw/virtio/virtio-scsi.h
+++ b/include/hw/virtio/virtio-scsi.h
@@ -187,6 +187,6 @@ typedef struct {
                                             VIRTIO_SCSI_F_CHANGE, true)
 
 void virtio_scsi_common_realize(DeviceState *dev, Error **errp);
-void virtio_scsi_common_exit(VirtIOSCSICommon *vs);
+void virtio_scsi_common_unrealize(DeviceState *dev, Error **errp);
 
 #endif /* _QEMU_VIRTIO_SCSI_H */
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index 6da88c0f41..3e54e90aad 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -130,7 +130,7 @@ typedef struct VirtioDeviceClass {
 
     /* This is what a VirtioDevice must implement */
     DeviceRealize realize;
-    void (*exit)(VirtIODevice *vdev);
+    DeviceUnrealize unrealize;
     uint32_t (*get_features)(VirtIODevice *vdev, uint32_t requested_features);
     uint32_t (*bad_features)(VirtIODevice *vdev);
     void (*set_features)(VirtIODevice *vdev, uint32_t val);
-- 
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