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virtio-input: emulated devices [pci]

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This patch adds virtio-pci support for the emulated virtio-input
devices.  Using them is as simple as adding "-device virtio-tablet-pci"
to your command line.  If you want add multiple devices but don't want
waste a pci slot for each you can compose a multifunction device this way:

qemu -device virtio-keyboard-pci,addr=0d.0,multifunction=on \
     -device virtio-tablet-pci,addr=0d.1,multifunction=on

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Gerd Hoffmann 2015-06-04 12:34:42 +02:00 committed by Michael S. Tsirkin
parent f958c8aa13
commit 710e2d90da
2 changed files with 97 additions and 0 deletions
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84
hw/virtio/virtio-pci.c
View File

@ -1900,6 +1900,12 @@ static const TypeInfo virtio_rng_pci_info = {
/* virtio-input-pci */
static Property virtio_input_hid_pci_properties[] = {
DEFINE_VIRTIO_INPUT_PROPERTIES(VirtIOInputPCI, vdev.input),
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 2),
DEFINE_PROP_END_OF_LIST(),
};
static void virtio_input_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
{
VirtIOInputPCI *vinput = VIRTIO_INPUT_PCI(vpci_dev);
@ -1924,6 +1930,49 @@ static void virtio_input_pci_class_init(ObjectClass *klass, void *data)
pcidev_k->class_id = PCI_CLASS_INPUT_OTHER;
}
static void virtio_input_hid_pci_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->props = virtio_input_hid_pci_properties;
}
static void virtio_input_hid_kbd_pci_class_init(ObjectClass *klass, void *data)
{
PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
pcidev_k->class_id = PCI_CLASS_INPUT_KEYBOARD;
}
static void virtio_input_hid_mouse_pci_class_init(ObjectClass *klass,
void *data)
{
PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
pcidev_k->class_id = PCI_CLASS_INPUT_MOUSE;
}
static void virtio_keyboard_initfn(Object *obj)
{
VirtIOInputHIDPCI *dev = VIRTIO_INPUT_HID_PCI(obj);
object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_KEYBOARD);
object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
}
static void virtio_mouse_initfn(Object *obj)
{
VirtIOInputHIDPCI *dev = VIRTIO_INPUT_HID_PCI(obj);
object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_MOUSE);
object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
}
static void virtio_tablet_initfn(Object *obj)
{
VirtIOInputHIDPCI *dev = VIRTIO_INPUT_HID_PCI(obj);
object_initialize(&dev->vdev, sizeof(dev->vdev), TYPE_VIRTIO_TABLET);
object_property_add_child(obj, "virtio-backend", OBJECT(&dev->vdev), NULL);
}
static const TypeInfo virtio_input_pci_info = {
.name = TYPE_VIRTIO_INPUT_PCI,
.parent = TYPE_VIRTIO_PCI,
@ -1932,6 +1981,37 @@ static const TypeInfo virtio_input_pci_info = {
.abstract = true,
};
static const TypeInfo virtio_input_hid_pci_info = {
.name = TYPE_VIRTIO_INPUT_HID_PCI,
.parent = TYPE_VIRTIO_INPUT_PCI,
.instance_size = sizeof(VirtIOInputHIDPCI),
.class_init = virtio_input_hid_pci_class_init,
.abstract = true,
};
static const TypeInfo virtio_keyboard_pci_info = {
.name = TYPE_VIRTIO_KEYBOARD_PCI,
.parent = TYPE_VIRTIO_INPUT_HID_PCI,
.class_init = virtio_input_hid_kbd_pci_class_init,
.instance_size = sizeof(VirtIOInputHIDPCI),
.instance_init = virtio_keyboard_initfn,
};
static const TypeInfo virtio_mouse_pci_info = {
.name = TYPE_VIRTIO_MOUSE_PCI,
.parent = TYPE_VIRTIO_INPUT_HID_PCI,
.class_init = virtio_input_hid_mouse_pci_class_init,
.instance_size = sizeof(VirtIOInputHIDPCI),
.instance_init = virtio_mouse_initfn,
};
static const TypeInfo virtio_tablet_pci_info = {
.name = TYPE_VIRTIO_TABLET_PCI,
.parent = TYPE_VIRTIO_INPUT_HID_PCI,
.instance_size = sizeof(VirtIOInputHIDPCI),
.instance_init = virtio_tablet_initfn,
};
/* virtio-pci-bus */
static void virtio_pci_bus_new(VirtioBusState *bus, size_t bus_size,
@ -1974,6 +2054,10 @@ static void virtio_pci_register_types(void)
{
type_register_static(&virtio_rng_pci_info);
type_register_static(&virtio_input_pci_info);
type_register_static(&virtio_input_hid_pci_info);
type_register_static(&virtio_keyboard_pci_info);
type_register_static(&virtio_mouse_pci_info);
type_register_static(&virtio_tablet_pci_info);
type_register_static(&virtio_pci_bus_info);
type_register_static(&virtio_pci_info);
#ifdef CONFIG_VIRTFS

13
hw/virtio/virtio-pci.h
View File

@ -41,6 +41,7 @@ typedef struct VirtIONetPCI VirtIONetPCI;
typedef struct VHostSCSIPCI VHostSCSIPCI;
typedef struct VirtIORngPCI VirtIORngPCI;
typedef struct VirtIOInputPCI VirtIOInputPCI;
typedef struct VirtIOInputHIDPCI VirtIOInputHIDPCI;
/* virtio-pci-bus */
@ -248,6 +249,18 @@ struct VirtIOInputPCI {
VirtIOInput vdev;
};
#define TYPE_VIRTIO_INPUT_HID_PCI "virtio-input-hid-pci"
#define TYPE_VIRTIO_KEYBOARD_PCI "virtio-keyboard-pci"
#define TYPE_VIRTIO_MOUSE_PCI "virtio-mouse-pci"
#define TYPE_VIRTIO_TABLET_PCI "virtio-tablet-pci"
#define VIRTIO_INPUT_HID_PCI(obj) \
OBJECT_CHECK(VirtIOInputHIDPCI, (obj), TYPE_VIRTIO_INPUT_HID_PCI)
struct VirtIOInputHIDPCI {
VirtIOPCIProxy parent_obj;
VirtIOInputHID vdev;
};
/* Virtio ABI version, if we increment this, we break the guest driver. */
#define VIRTIO_PCI_ABI_VERSION 0