[Qemu-devel] [PATCH v4 4/8] igd: TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE: call parent realize

From: Gerd Hoffmann <kraxel@redhat.com>
To: kevin.tian@intel.com,
	Alex Williamson <alex.williamson@redhat.com>,
	Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: igvt-g@ml01.01.org, xen-devel@lists.xensource.com,
	Gerd Hoffmann <kraxel@redhat.com>,
	"open list:All patches CC here" <qemu-devel@nongnu.org>
Subject: [Qemu-devel] [PATCH v4 4/8] igd: TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE: call parent realize
Date: Tue,  8 Mar 2016 15:27:23 +0100	[thread overview]
Message-ID: <1457447247-4865-5-git-send-email-kraxel@redhat.com> (raw)
In-Reply-To: <1457447247-4865-1-git-send-email-kraxel@redhat.com>

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/pci-host/igd.c | 29 ++++++++++++++++++++++++++---
 1 file changed, 26 insertions(+), 3 deletions(-)

diff --git a/hw/pci-host/igd.c b/hw/pci-host/igd.c
index 93b86ca..3654298 100644
--- a/hw/pci-host/igd.c
+++ b/hw/pci-host/igd.c
@@ -56,12 +56,32 @@ out:
     return ret;
 }
 
+#define IGD_PT_I440FX_CLASS(class)                              \
+    OBJECT_CLASS_CHECK(IGDPtI440fxClass, (class),               \
+                       TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE)
+#define IGD_PT_I440FX_GET_CLASS(obj)                            \
+    OBJECT_GET_CLASS(IGDPtI440fxClass, (obj),                   \
+                     TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE)
+
+typedef struct IGDPtI440fxClass {
+    PCIDeviceClass parent_class;
+    void (*parent_realize)(PCIDevice *dev, Error **errp);
+} IGDPtI440fxClass;
+
 static void igd_pt_i440fx_realize(PCIDevice *pci_dev, Error **errp)
 {
+    IGDPtI440fxClass *k = IGD_PT_I440FX_GET_CLASS(pci_dev);
+    Error *err = NULL;
     uint32_t val = 0;
     int rc, i, num;
     int pos, len;
 
+    k->parent_realize(pci_dev, &err);
+    if (err != NULL) {
+        error_propagate(errp, err);
+        return;
+    }
+
     num = ARRAY_SIZE(igd_host_bridge_infos);
     for (i = 0; i < num; i++) {
         pos = igd_host_bridge_infos[i].offset;
@@ -77,17 +97,20 @@ static void igd_pt_i440fx_realize(PCIDevice *pci_dev, Error **errp)
 
 static void igd_passthrough_i440fx_class_init(ObjectClass *klass, void *data)
 {
+    IGDPtI440fxClass *k = IGD_PT_I440FX_CLASS(klass);
     DeviceClass *dc = DEVICE_CLASS(klass);
-    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+    PCIDeviceClass *pc = PCI_DEVICE_CLASS(klass);
 
-    k->realize = igd_pt_i440fx_realize;
-    dc->desc = "IGD Passthrough Host bridge";
+    k->parent_realize = pc->realize;
+    pc->realize = igd_pt_i440fx_realize;
+    dc->desc = "IGD Passthrough Host bridge (i440fx)";
 }
 
 static const TypeInfo igd_passthrough_i440fx_info = {
     .name          = TYPE_IGD_PASSTHROUGH_I440FX_PCI_DEVICE,
     .parent        = TYPE_I440FX_PCI_DEVICE,
     .class_init    = igd_passthrough_i440fx_class_init,
+    .class_size    = sizeof(IGDPtI440fxClass),
 };
 
 static void igd_register_types(void)
-- 
1.8.3.1
