qemu/hw/virtio/virtio-iommu-pci.c
Markus Armbruster 99ba777e53 qdev: Convert uses of qdev_set_parent_bus() with Coccinelle
In addition to the qdev_create() patterns converted so far, we have a
qdev_set_parent_bus() pattern.  Mostly when we embed a device in a
parent device rather than allocating it on the heap.

This pattern also puts devices in the dangerous "no QOM parent, but
plugged into bus" state I explained in recent commit "qdev: New
qdev_new(), qdev_realize(), etc."

Apply same solution: convert to qdev_realize().  Coccinelle script:

    @@
    expression dev, bus, errp;
    symbol true;
    @@
    -    qdev_set_parent_bus(DEVICE(dev), bus);
         ...
    -    object_property_set_bool(OBJECT(dev), true, "realized", errp);
    +    qdev_realize(DEVICE(dev), bus, errp);

    @ depends on !(file in "qdev-monitor.c") && !(file in "hw/core/qdev.c")@
    expression dev, bus, errp;
    symbol true;
    @@
    -    qdev_set_parent_bus(dev, bus);
         ...
    -    object_property_set_bool(OBJECT(dev), true, "realized", errp);
    +    qdev_realize(dev, bus, errp);

    @@
    expression dev, bus;
    symbol true;
    @@
    -    qdev_set_parent_bus(DEVICE(dev), bus);
         ...
    -    qdev_init_nofail(DEVICE(dev));
    +    qdev_realize(DEVICE(dev), bus, &error_fatal);

Unconverted uses of qdev_set_parent_bus() remain.  They'll be
converted later in this series.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200610053247.1583243-12-armbru@redhat.com>
[Also convert new hw/virtio/vhost-user-vsock-pci.c]
2020-06-15 22:05:08 +02:00

104 lines
3.2 KiB
C

/*
* Virtio IOMMU PCI Bindings
*
* Copyright (c) 2019 Red Hat, Inc.
* Written by Eric Auger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 or
* (at your option) any later version.
*/
#include "qemu/osdep.h"
#include "virtio-pci.h"
#include "hw/virtio/virtio-iommu.h"
#include "hw/qdev-properties.h"
#include "qapi/error.h"
#include "hw/boards.h"
typedef struct VirtIOIOMMUPCI VirtIOIOMMUPCI;
/*
* virtio-iommu-pci: This extends VirtioPCIProxy.
*
*/
#define VIRTIO_IOMMU_PCI(obj) \
OBJECT_CHECK(VirtIOIOMMUPCI, (obj), TYPE_VIRTIO_IOMMU_PCI)
struct VirtIOIOMMUPCI {
VirtIOPCIProxy parent_obj;
VirtIOIOMMU vdev;
};
static Property virtio_iommu_pci_properties[] = {
DEFINE_PROP_UINT32("class", VirtIOPCIProxy, class_code, 0),
DEFINE_PROP_END_OF_LIST(),
};
static void virtio_iommu_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
{
VirtIOIOMMUPCI *dev = VIRTIO_IOMMU_PCI(vpci_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
if (!qdev_get_machine_hotplug_handler(DEVICE(vpci_dev))) {
MachineClass *mc = MACHINE_GET_CLASS(qdev_get_machine());
error_setg(errp,
"%s machine fails to create iommu-map device tree bindings",
mc->name);
error_append_hint(errp,
"Check you machine implements a hotplug handler "
"for the virtio-iommu-pci device\n");
error_append_hint(errp, "Check the guest is booted without FW or with "
"-no-acpi\n");
return;
}
object_property_set_link(OBJECT(dev),
OBJECT(pci_get_bus(&vpci_dev->pci_dev)),
"primary-bus", errp);
qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
}
static void virtio_iommu_pci_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
k->realize = virtio_iommu_pci_realize;
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
device_class_set_props(dc, virtio_iommu_pci_properties);
pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_IOMMU;
pcidev_k->revision = VIRTIO_PCI_ABI_VERSION;
pcidev_k->class_id = PCI_CLASS_OTHERS;
dc->hotpluggable = false;
}
static void virtio_iommu_pci_instance_init(Object *obj)
{
VirtIOIOMMUPCI *dev = VIRTIO_IOMMU_PCI(obj);
virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
TYPE_VIRTIO_IOMMU);
}
static const VirtioPCIDeviceTypeInfo virtio_iommu_pci_info = {
.base_name = TYPE_VIRTIO_IOMMU_PCI,
.generic_name = "virtio-iommu-pci",
.transitional_name = "virtio-iommu-pci-transitional",
.non_transitional_name = "virtio-iommu-pci-non-transitional",
.instance_size = sizeof(VirtIOIOMMUPCI),
.instance_init = virtio_iommu_pci_instance_init,
.class_init = virtio_iommu_pci_class_init,
};
static void virtio_iommu_pci_register(void)
{
virtio_pci_types_register(&virtio_iommu_pci_info);
}
type_init(virtio_iommu_pci_register)