[Qemu-devel] [RFC PATCH V4 4/6] virtio-pci : Introduce virtio-pci device.

[fred.konrad@greensocs.com]

From: KONRAD Frederic <fred.konrad@greensocs.com>

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
---
 hw/virtio-pci.c |   48 +++++++++++++++++++++++++++++++++++++++++++++++-
 hw/virtio-pci.h |   15 +++++++++++++++
 2 files changed, 62 insertions(+), 1 deletions(-)

diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c
index a73704d..1fb1905 100644
--- a/hw/virtio-pci.c
+++ b/hw/virtio-pci.c
@@ -1119,6 +1119,52 @@ static TypeInfo virtio_scsi_info = {
     .class_init    = virtio_scsi_class_init,
 };
 
+/*
+ * virtio-pci : This is the PCIDevice which have a virtio-pci-bus.
+ */
+
+static int virtio_pci_init(PCIDevice *pci_dev)
+{
+    VirtIOPCIProxy *dev = VIRTIO_PCI(pci_dev);
+    dev->bus = virtio_pci_bus_new(dev);
+    return 0;
+}
+
+static void virtio_pci_exit(PCIDevice *pci_dev)
+{
+    VirtIOPCIProxy *dev = VIRTIO_PCI(pci_dev);
+    /*
+     * TODO:
+     * -> Destroy the bus.
+     * -> Destroy the device.
+     *
+     */
+}
+
+static void virtio_pci_class_init(ObjectClass *klass, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
+
+    k->init = virtio_pci_init;
+    k->exit = virtio_pci_exit;
+    /*
+    k->exit = virtio_scsi_exit_pci;
+    k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
+    k->device_id = PCI_DEVICE_ID_VIRTIO_SCSI;
+    k->revision = 0x00;
+    k->class_id = PCI_CLASS_STORAGE_SCSI;
+    dc->reset = virtio_pci_reset;
+    dc->props = virtio_scsi_properties;*/
+}
+
+static const TypeInfo virtio_pci_info = {
+    .name          = TYPE_VIRTIO_PCI,
+    .parent        = TYPE_PCI_DEVICE,
+    .instance_size = sizeof(VirtIOPCIProxy),
+    .class_init    = virtio_pci_class_init,
+};
+
 /* virtio-pci-bus */
 
 VirtioBusState *virtio_pci_bus_new(VirtIOPCIProxy *dev)
@@ -1154,7 +1200,7 @@ static void virtio_pci_bus_class_init(ObjectClass *klass, void *data)
      */
 }
 
-static TypeInfo virtio_pci_bus_info = {
+static const TypeInfo virtio_pci_bus_info = {
     .name          = TYPE_VIRTIO_PCI_BUS,
     .parent        = TYPE_VIRTIO_BUS,
     .instance_size = sizeof(VirtioBusState),
diff --git a/hw/virtio-pci.h b/hw/virtio-pci.h
index 0e3288e..62c9198 100644
--- a/hw/virtio-pci.h
+++ b/hw/virtio-pci.h
@@ -46,6 +46,17 @@ typedef struct {
     unsigned int users;
 } VirtIOIRQFD;
 
+/*
+ * virtio-pci : This is the PCIDevice which have a virtio-pci-bus.
+ */
+#define TYPE_VIRTIO_PCI "virtio-pci"
+#define VIRTIO_PCI_GET_CLASS(obj) \
+        OBJECT_GET_CLASS(VirtioPCIClass, obj, TYPE_VIRTIO_PCI)
+#define VIRTIO_PCI_CLASS(klass) \
+        OBJECT_CLASS_CHECK(VirtioPCIClass, klass, TYPE_VIRTIO_PCI)
+#define VIRTIO_PCI(obj) \
+        OBJECT_CHECK(VirtIOPCIProxy, (obj), TYPE_VIRTIO_PCI)
+
 struct VirtIOPCIProxy {
     PCIDevice pci_dev;
     VirtIODevice *vdev;
@@ -66,6 +77,10 @@ struct VirtIOPCIProxy {
     bool ioeventfd_disabled;
     bool ioeventfd_started;
     VirtIOIRQFD *vector_irqfd;
+
+    /* That's the virtio-bus on which VirtioDevice will be connected. */
+    VirtioBusState *bus;
+    /* Nothing more for the moment. */
 };
 
 void virtio_init_pci(VirtIOPCIProxy *proxy, VirtIODevice *vdev);
-- 
1.7.1