[Qemu-devel] [PATCH 21/28] spapr: convert to QEMU Object Model (v2)

[Anthony Liguori <aliguori@us.ibm.com>]

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
v1 -> v2
 - use QOM to check for the default console
---
 hw/spapr_llan.c  |   37 ++++++++++++++++++++++-------------
 hw/spapr_vio.c   |   55 ++++++++++++++++++++++++++++++++---------------------
 hw/spapr_vio.h   |   35 +++++++++++++++++++++++++--------
 hw/spapr_vscsi.c |   35 +++++++++++++++++++++------------
 hw/spapr_vty.c   |   35 +++++++++++++++++++++------------
 5 files changed, 126 insertions(+), 71 deletions(-)

diff --git a/hw/spapr_llan.c b/hw/spapr_llan.c
index b9a5afc..0fb176a 100644
--- a/hw/spapr_llan.c
+++ b/hw/spapr_llan.c
@@ -474,20 +474,29 @@ static target_ulong h_multicast_ctrl(CPUState *env, sPAPREnvironment *spapr,
     return H_SUCCESS;
 }
 
-static VIOsPAPRDeviceInfo spapr_vlan_info = {
-    .init = spapr_vlan_init,
-    .devnode = spapr_vlan_devnode,
-    .dt_name = "l-lan",
-    .dt_type = "network",
-    .dt_compatible = "IBM,l-lan",
-    .signal_mask = 0x1,
-    .qdev.name = "spapr-vlan",
-    .qdev.size = sizeof(VIOsPAPRVLANDevice),
-    .qdev.props = (Property[]) {
-        DEFINE_SPAPR_PROPERTIES(VIOsPAPRVLANDevice, sdev, 0x1000, 0x10000000),
-        DEFINE_NIC_PROPERTIES(VIOsPAPRVLANDevice, nicconf),
-        DEFINE_PROP_END_OF_LIST(),
-    },
+static Property spapr_vlan_properties[] = {
+    DEFINE_SPAPR_PROPERTIES(VIOsPAPRVLANDevice, sdev, 0x1000, 0x10000000),
+    DEFINE_NIC_PROPERTIES(VIOsPAPRVLANDevice, nicconf),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static void spapr_vlan_class_init(ObjectClass *klass, void *data)
+{
+    VIOsPAPRDeviceClass *k = VIO_SPAPR_DEVICE_CLASS(klass);
+
+    k->init = spapr_vlan_init;
+    k->devnode = spapr_vlan_devnode;
+    k->dt_name = "l-lan";
+    k->dt_type = "network";
+    k->dt_compatible = "IBM,l-lan";
+    k->signal_mask = 0x1;
+}
+
+static DeviceInfo spapr_vlan_info = {
+    .name = "spapr-vlan",
+    .size = sizeof(VIOsPAPRVLANDevice),
+    .props = spapr_vlan_properties,
+    .class_init = spapr_vlan_class_init,
 };
 
 static void spapr_vlan_register(void)
diff --git a/hw/spapr_vio.c b/hw/spapr_vio.c
index 0159413..bc586bf 100644
--- a/hw/spapr_vio.c
+++ b/hw/spapr_vio.c
@@ -75,11 +75,11 @@ VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg)
 
 static char *vio_format_dev_name(VIOsPAPRDevice *dev)
 {
-    VIOsPAPRDeviceInfo *info = (VIOsPAPRDeviceInfo *)qdev_get_info(&dev->qdev);
+    VIOsPAPRDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev);
     char *name;
 
     /* Device tree style name device@reg */
-    if (asprintf(&name, "%s@%x", info->dt_name, dev->reg) < 0) {
+    if (asprintf(&name, "%s@%x", pc->dt_name, dev->reg) < 0) {
         return NULL;
     }
 
@@ -90,7 +90,7 @@ static char *vio_format_dev_name(VIOsPAPRDevice *dev)
 static int vio_make_devnode(VIOsPAPRDevice *dev,
                             void *fdt)
 {
-    VIOsPAPRDeviceInfo *info = (VIOsPAPRDeviceInfo *)qdev_get_info(&dev->qdev);
+    VIOsPAPRDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev);
     int vdevice_off, node_off, ret;
     char *dt_name;
 
@@ -115,17 +115,17 @@ static int vio_make_devnode(VIOsPAPRDevice *dev,
         return ret;
     }
 
-    if (info->dt_type) {
+    if (pc->dt_type) {
         ret = fdt_setprop_string(fdt, node_off, "device_type",
-                                 info->dt_type);
+                                 pc->dt_type);
         if (ret < 0) {
             return ret;
         }
     }
 
-    if (info->dt_compatible) {
+    if (pc->dt_compatible) {
         ret = fdt_setprop_string(fdt, node_off, "compatible",
-                                 info->dt_compatible);
+                                 pc->dt_compatible);
         if (ret < 0) {
             return ret;
         }
@@ -163,8 +163,8 @@ static int vio_make_devnode(VIOsPAPRDevice *dev,
         }
     }
 
-    if (info->devnode) {
-        ret = (info->devnode)(dev, fdt, node_off);
+    if (pc->devnode) {
+        ret = (pc->devnode)(dev, fdt, node_off);
         if (ret < 0) {
             return ret;
         }
@@ -621,7 +621,7 @@ static void rtas_quiesce(sPAPREnvironment *spapr, uint32_t token,
     rtas_st(rets, 0, 0);
 }
 
-static int spapr_vio_check_reg(VIOsPAPRDevice *sdev, VIOsPAPRDeviceInfo *info)
+static int spapr_vio_check_reg(VIOsPAPRDevice *sdev)
 {
     VIOsPAPRDevice *other_sdev;
     DeviceState *qdev;
@@ -639,7 +639,9 @@ static int spapr_vio_check_reg(VIOsPAPRDevice *sdev, VIOsPAPRDeviceInfo *info)
 
         if (other_sdev != sdev && other_sdev->reg == sdev->reg) {
             fprintf(stderr, "vio: %s and %s devices conflict at address %#x\n",
-                    info->qdev.name, other_sdev->qdev.info->name, sdev->reg);
+                    object_get_typename(OBJECT(sdev)),
+                    object_get_typename(OBJECT(qdev)),
+                    sdev->reg);
             return -EEXIST;
         }
     }
@@ -649,12 +651,12 @@ static int spapr_vio_check_reg(VIOsPAPRDevice *sdev, VIOsPAPRDeviceInfo *info)
 
 static int spapr_vio_busdev_init(DeviceState *qdev, DeviceInfo *qinfo)
 {
-    VIOsPAPRDeviceInfo *info = (VIOsPAPRDeviceInfo *)qinfo;
     VIOsPAPRDevice *dev = (VIOsPAPRDevice *)qdev;
+    VIOsPAPRDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev);
     char *id;
     int ret;
 
-    ret = spapr_vio_check_reg(dev, info);
+    ret = spapr_vio_check_reg(dev);
     if (ret) {
         return ret;
     }
@@ -675,16 +677,16 @@ static int spapr_vio_busdev_init(DeviceState *qdev, DeviceInfo *qinfo)
 
     rtce_init(dev);
 
-    return info->init(dev);
+    return pc->init(dev);
 }
 
-void spapr_vio_bus_register_withprop(VIOsPAPRDeviceInfo *info)
+void spapr_vio_bus_register_withprop(DeviceInfo *info)
 {
-    info->qdev.init = spapr_vio_busdev_init;
-    info->qdev.bus_info = &spapr_vio_bus_info;
+    info->init = spapr_vio_busdev_init;
+    info->bus_info = &spapr_vio_bus_info;
 
-    assert(info->qdev.size >= sizeof(VIOsPAPRDevice));
-    qdev_register(&info->qdev);
+    assert(info->size >= sizeof(VIOsPAPRDevice));
+    qdev_register_subclass(info, TYPE_VIO_SPAPR_DEVICE);
 }
 
 static target_ulong h_vio_signal(CPUState *env, sPAPREnvironment *spapr,
@@ -694,15 +696,15 @@ static target_ulong h_vio_signal(CPUState *env, sPAPREnvironment *spapr,
     target_ulong reg = args[0];
     target_ulong mode = args[1];
     VIOsPAPRDevice *dev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
-    VIOsPAPRDeviceInfo *info;
+    VIOsPAPRDeviceClass *pc;
 
     if (!dev) {
         return H_PARAMETER;
     }
 
-    info = (VIOsPAPRDeviceInfo *)qdev_get_info(&dev->qdev);
+    pc = VIO_SPAPR_DEVICE_GET_CLASS(dev);
 
-    if (mode & ~info->signal_mask) {
+    if (mode & ~pc->signal_mask) {
         return H_PARAMETER;
     }
 
@@ -760,9 +762,18 @@ static SysBusDeviceInfo spapr_vio_bridge_info = {
     .qdev.no_user = 1,
 };
 
+static TypeInfo spapr_vio_type_info = {
+    .name = TYPE_VIO_SPAPR_DEVICE,
+    .parent = TYPE_DEVICE,
+    .instance_size = sizeof(VIOsPAPRDevice),
+    .abstract = true,
+    .class_size = sizeof(VIOsPAPRDeviceClass),
+};
+
 static void spapr_vio_register_devices(void)
 {
     sysbus_register_withprop(&spapr_vio_bridge_info);
+    type_register_static(&spapr_vio_type_info);
 }
 
 device_init(spapr_vio_register_devices)
diff --git a/hw/spapr_vio.h b/hw/spapr_vio.h
index 0984d55..7d1155a 100644
--- a/hw/spapr_vio.h
+++ b/hw/spapr_vio.h
@@ -34,6 +34,14 @@ enum VIOsPAPR_TCEAccess {
 
 #define SPAPR_VTY_BASE_ADDRESS     0x30000000
 
+#define TYPE_VIO_SPAPR_DEVICE "vio-spapr-device"
+#define VIO_SPAPR_DEVICE(obj) \
+     OBJECT_CHECK(VIOsPAPRDevice, (obj), TYPE_VIO_SPAPR_DEVICE)
+#define VIO_SPAPR_DEVICE_CLASS(klass) \
+     OBJECT_CLASS_CHECK(VIOsPAPRDeviceClass, (klass), TYPE_VIO_SPAPR_DEVICE)
+#define VIO_SPAPR_DEVICE_GET_CLASS(obj) \
+     OBJECT_GET_CLASS(VIOsPAPRDeviceClass, (obj), TYPE_VIO_SPAPR_DEVICE)
+
 struct VIOsPAPRDevice;
 
 typedef struct VIOsPAPR_RTCE {
@@ -47,7 +55,20 @@ typedef struct VIOsPAPR_CRQ {
     int(*SendFunc)(struct VIOsPAPRDevice *vdev, uint8_t *crq);
 } VIOsPAPR_CRQ;
 
-typedef struct VIOsPAPRDevice {
+typedef struct VIOsPAPRDevice VIOsPAPRDevice;
+typedef struct VIOsPAPRBus VIOsPAPRBus;
+
+typedef struct VIOsPAPRDeviceClass {
+    DeviceClass parent_class;
+
+    const char *dt_name, *dt_type, *dt_compatible;
+    target_ulong signal_mask;
+    int (*init)(VIOsPAPRDevice *dev);
+    void (*hcalls)(VIOsPAPRBus *bus);
+    int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off);
+} VIOsPAPRDeviceClass;
+
+struct VIOsPAPRDevice {
     DeviceState qdev;
     uint32_t reg;
     uint32_t flags;
@@ -59,28 +80,24 @@ typedef struct VIOsPAPRDevice {
     VIOsPAPR_RTCE *rtce_table;
     int kvmtce_fd;
     VIOsPAPR_CRQ crq;
-} VIOsPAPRDevice;
+};
 
 #define DEFINE_SPAPR_PROPERTIES(type, field, default_reg, default_dma_window) \
         DEFINE_PROP_UINT32("reg", type, field.reg, default_reg), \
         DEFINE_PROP_UINT32("dma-window", type, field.rtce_window_size, \
                            default_dma_window)
 
-typedef struct VIOsPAPRBus {
+struct VIOsPAPRBus {
     BusState bus;
-} VIOsPAPRBus;
-
-typedef struct {
-    DeviceInfo qdev;
     const char *dt_name, *dt_type, *dt_compatible;
     target_ulong signal_mask;
     int (*init)(VIOsPAPRDevice *dev);
     int (*devnode)(VIOsPAPRDevice *dev, void *fdt, int node_off);
-} VIOsPAPRDeviceInfo;
+};
 
 extern VIOsPAPRBus *spapr_vio_bus_init(void);
 extern VIOsPAPRDevice *spapr_vio_find_by_reg(VIOsPAPRBus *bus, uint32_t reg);
-extern void spapr_vio_bus_register_withprop(VIOsPAPRDeviceInfo *info);
+extern void spapr_vio_bus_register_withprop(DeviceInfo *info);
 extern int spapr_populate_vdevice(VIOsPAPRBus *bus, void *fdt);
 extern int spapr_populate_chosen_stdout(void *fdt, VIOsPAPRBus *bus);
 
diff --git a/hw/spapr_vscsi.c b/hw/spapr_vscsi.c
index 21d946e..b83bb7f 100644
--- a/hw/spapr_vscsi.c
+++ b/hw/spapr_vscsi.c
@@ -947,19 +947,28 @@ static int spapr_vscsi_devnode(VIOsPAPRDevice *dev, void *fdt, int node_off)
     return 0;
 }
 
-static VIOsPAPRDeviceInfo spapr_vscsi_info = {
-    .init = spapr_vscsi_init,
-    .devnode = spapr_vscsi_devnode,
-    .dt_name = "v-scsi",
-    .dt_type = "vscsi",
-    .dt_compatible = "IBM,v-scsi",
-    .signal_mask = 0x00000001,
-    .qdev.name = "spapr-vscsi",
-    .qdev.size = sizeof(VSCSIState),
-    .qdev.props = (Property[]) {
-        DEFINE_SPAPR_PROPERTIES(VSCSIState, vdev, 0x2000, 0x10000000),
-        DEFINE_PROP_END_OF_LIST(),
-    },
+static Property spapr_vscsi_properties[] = {
+    DEFINE_SPAPR_PROPERTIES(VSCSIState, vdev, 0x2000, 0x10000000),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static void spapr_vscsi_class_init(ObjectClass *klass, void *data)
+{
+    VIOsPAPRDeviceClass *k = VIO_SPAPR_DEVICE_CLASS(klass);
+
+    k->init = spapr_vscsi_init;
+    k->devnode = spapr_vscsi_devnode;
+    k->dt_name = "v-scsi";
+    k->dt_type = "vscsi";
+    k->dt_compatible = "IBM,v-scsi";
+    k->signal_mask = 0x00000001;
+}
+
+static DeviceInfo spapr_vscsi_info = {
+    .name = "spapr-vscsi",
+    .size = sizeof(VSCSIState),
+    .props = spapr_vscsi_properties,
+    .class_init = spapr_vscsi_class_init,
 };
 
 static void spapr_vscsi_register(void)
diff --git a/hw/spapr_vty.c b/hw/spapr_vty.c
index 3d5c579..1780ffe 100644
--- a/hw/spapr_vty.c
+++ b/hw/spapr_vty.c
@@ -135,18 +135,27 @@ void spapr_vty_create(VIOsPAPRBus *bus, uint32_t reg, CharDriverState *chardev)
     qdev_init_nofail(dev);
 }
 
-static VIOsPAPRDeviceInfo spapr_vty_info = {
-    .init = spapr_vty_init,
-    .dt_name = "vty",
-    .dt_type = "serial",
-    .dt_compatible = "hvterm1",
-    .qdev.name = "spapr-vty",
-    .qdev.size = sizeof(VIOsPAPRVTYDevice),
-    .qdev.props = (Property[]) {
-        DEFINE_SPAPR_PROPERTIES(VIOsPAPRVTYDevice, sdev, SPAPR_VTY_BASE_ADDRESS, 0),
-        DEFINE_PROP_CHR("chardev", VIOsPAPRVTYDevice, chardev),
-        DEFINE_PROP_END_OF_LIST(),
-    },
+static Property spapr_vty_properties[] = {
+    DEFINE_SPAPR_PROPERTIES(VIOsPAPRVTYDevice, sdev, SPAPR_VTY_BASE_ADDRESS, 0),
+    DEFINE_PROP_CHR("chardev", VIOsPAPRVTYDevice, chardev),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static void spapr_vty_class_init(ObjectClass *klass, void *data)
+{
+    VIOsPAPRDeviceClass *k = VIO_SPAPR_DEVICE_CLASS(klass);
+
+    k->init = spapr_vty_init;
+    k->dt_name = "vty";
+    k->dt_type = "serial";
+    k->dt_compatible = "hvterm1";
+}
+
+static DeviceInfo spapr_vty_info = {
+    .name = "spapr-vty",
+    .size = sizeof(VIOsPAPRVTYDevice),
+    .props = spapr_vty_properties,
+    .class_init = spapr_vty_class_init,
 };
 
 VIOsPAPRDevice *spapr_vty_get_default(VIOsPAPRBus *bus)
@@ -163,7 +172,7 @@ VIOsPAPRDevice *spapr_vty_get_default(VIOsPAPRBus *bus)
     selected = NULL;
     QTAILQ_FOREACH(iter, &bus->bus.children, sibling) {
         /* Only look at VTY devices */
-        if (qdev_get_info(iter) != &spapr_vty_info.qdev) {
+        if (!object_dynamic_cast(OBJECT(iter), "spapr-vty")) {
             continue;
         }
 
-- 
1.7.4.1