[Qemu-ppc] [PATCH v2 1/2] pci_host: Turn into SysBus-derived QOM type

[Andreas Färber]

From: Andreas Färber <address@hidden>

Allows us to access PCIHostState QOM-style with PCI_HOST() macro.

Update PReP Raven PCI to derive from this type.

Signed-off-by: Anthony Liguori <address@hidden>
Signed-off-by: Wanpeng Li <address@hidden>
Signed-off-by: Andreas Färber <address@hidden>
Reviewed-by: Anthony Liguori <address@hidden>
---
 hw/pci_host.c |   11 +++++++++++
 hw/pci_host.h |    3 +++
 hw/prep_pci.c |    4 ++--
 3 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/hw/pci_host.c b/hw/pci_host.c
index 8041778..347bfa6 100644
--- a/hw/pci_host.c
+++ b/hw/pci_host.c
@@ -165,4 +165,15 @@ const MemoryRegionOps pci_host_data_be_ops = {
     .endianness = DEVICE_BIG_ENDIAN,
 };
 
+static const TypeInfo pci_host_type_info = {
+    .name = TYPE_PCI_HOST,
+    .parent = TYPE_SYS_BUS_DEVICE,
+    .instance_size = sizeof(PCIHostState),
+};
+
+static void pci_host_register_types(void)
+{
+    type_register_static(&pci_host_type_info);
+}
 
+type_init(pci_host_register_types)
diff --git a/hw/pci_host.h b/hw/pci_host.h
index 359e38f..fba9fde 100644
--- a/hw/pci_host.h
+++ b/hw/pci_host.h
@@ -30,6 +30,9 @@
 
 #include "sysbus.h"
 
+#define TYPE_PCI_HOST "pci-host"
+#define PCI_HOST(obj) OBJECT_CHECK(PCIHostState, (obj), TYPE_PCI_HOST)
+
 struct PCIHostState {
     SysBusDevice busdev;
     MemoryRegion conf_mem;
diff --git a/hw/prep_pci.c b/hw/prep_pci.c
index 38dbff4..3e9f6b8 100644
--- a/hw/prep_pci.c
+++ b/hw/prep_pci.c
@@ -183,9 +183,9 @@ static void raven_pcihost_class_init(ObjectClass *klass, 
void *data)
     dc->no_user = 1;
 }
 
-static TypeInfo raven_pcihost_info = {
+static const TypeInfo raven_pcihost_info = {
     .name = "raven-pcihost",
-    .parent = TYPE_SYS_BUS_DEVICE,
+    .parent = TYPE_PCI_HOST,
     .instance_size = sizeof(PREPPCIState),
     .class_init = raven_pcihost_class_init,
 };
-- 
1.7.7