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hw/virtio: add vhost-user-gpio-pci boilerplate
This allows is to instantiate a vhost-user-gpio device as part of a PCI bus. It is mostly boilerplate which looks pretty similar to the vhost-user-fs-pci device. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <5f560cab92d0d789b1c94295ec74b9952907d69d.1641987128.git.viresh.kumar@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20220802095010.3330793-14-alex.bennee@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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/* | ||
* Vhost-user gpio virtio device PCI glue | ||
* | ||
* Copyright (c) 2022 Viresh Kumar <viresh.kumar@linaro.org> | ||
* | ||
* SPDX-License-Identifier: GPL-2.0-or-later | ||
*/ | ||
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#include "qemu/osdep.h" | ||
#include "hw/qdev-properties.h" | ||
#include "hw/virtio/vhost-user-gpio.h" | ||
#include "hw/virtio/virtio-pci.h" | ||
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struct VHostUserGPIOPCI { | ||
VirtIOPCIProxy parent_obj; | ||
VHostUserGPIO vdev; | ||
}; | ||
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typedef struct VHostUserGPIOPCI VHostUserGPIOPCI; | ||
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#define TYPE_VHOST_USER_GPIO_PCI "vhost-user-gpio-pci-base" | ||
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DECLARE_INSTANCE_CHECKER(VHostUserGPIOPCI, VHOST_USER_GPIO_PCI, | ||
TYPE_VHOST_USER_GPIO_PCI) | ||
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static void vhost_user_gpio_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) | ||
{ | ||
VHostUserGPIOPCI *dev = VHOST_USER_GPIO_PCI(vpci_dev); | ||
DeviceState *vdev = DEVICE(&dev->vdev); | ||
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vpci_dev->nvectors = 1; | ||
qdev_realize(vdev, BUS(&vpci_dev->bus), errp); | ||
} | ||
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static void vhost_user_gpio_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 = vhost_user_gpio_pci_realize; | ||
set_bit(DEVICE_CATEGORY_INPUT, dc->categories); | ||
pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET; | ||
pcidev_k->device_id = 0; /* Set by virtio-pci based on virtio id */ | ||
pcidev_k->revision = 0x00; | ||
pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER; | ||
} | ||
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static void vhost_user_gpio_pci_instance_init(Object *obj) | ||
{ | ||
VHostUserGPIOPCI *dev = VHOST_USER_GPIO_PCI(obj); | ||
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virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), | ||
TYPE_VHOST_USER_GPIO); | ||
} | ||
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static const VirtioPCIDeviceTypeInfo vhost_user_gpio_pci_info = { | ||
.base_name = TYPE_VHOST_USER_GPIO_PCI, | ||
.non_transitional_name = "vhost-user-gpio-pci", | ||
.instance_size = sizeof(VHostUserGPIOPCI), | ||
.instance_init = vhost_user_gpio_pci_instance_init, | ||
.class_init = vhost_user_gpio_pci_class_init, | ||
}; | ||
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static void vhost_user_gpio_pci_register(void) | ||
{ | ||
virtio_pci_types_register(&vhost_user_gpio_pci_info); | ||
} | ||
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type_init(vhost_user_gpio_pci_register); |