qemu

FORK: QEMU emulator
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vhost-user-gpio-pci.c (2126B)

      1 /*
      2  * Vhost-user gpio virtio device PCI glue
      3  *
      4  * Copyright (c) 2022 Viresh Kumar <viresh.kumar@linaro.org>
      5  *
      6  * SPDX-License-Identifier: GPL-2.0-or-later
      7  */
      8 
      9 #include "qemu/osdep.h"
     10 #include "hw/qdev-properties.h"
     11 #include "hw/virtio/vhost-user-gpio.h"
     12 #include "hw/virtio/virtio-pci.h"
     13 
     14 struct VHostUserGPIOPCI {
     15     VirtIOPCIProxy parent_obj;
     16     VHostUserGPIO vdev;
     17 };
     18 
     19 typedef struct VHostUserGPIOPCI VHostUserGPIOPCI;
     20 
     21 #define TYPE_VHOST_USER_GPIO_PCI "vhost-user-gpio-pci-base"
     22 
     23 DECLARE_INSTANCE_CHECKER(VHostUserGPIOPCI, VHOST_USER_GPIO_PCI,
     24                          TYPE_VHOST_USER_GPIO_PCI)
     25 
     26 static void vhost_user_gpio_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
     27 {
     28     VHostUserGPIOPCI *dev = VHOST_USER_GPIO_PCI(vpci_dev);
     29     DeviceState *vdev = DEVICE(&dev->vdev);
     30 
     31     vpci_dev->nvectors = 1;
     32     qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
     33 }
     34 
     35 static void vhost_user_gpio_pci_class_init(ObjectClass *klass, void *data)
     36 {
     37     DeviceClass *dc = DEVICE_CLASS(klass);
     38     VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
     39     PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
     40     k->realize = vhost_user_gpio_pci_realize;
     41     set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
     42     pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
     43     pcidev_k->device_id = 0; /* Set by virtio-pci based on virtio id */
     44     pcidev_k->revision = 0x00;
     45     pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER;
     46 }
     47 
     48 static void vhost_user_gpio_pci_instance_init(Object *obj)
     49 {
     50     VHostUserGPIOPCI *dev = VHOST_USER_GPIO_PCI(obj);
     51 
     52     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
     53                                 TYPE_VHOST_USER_GPIO);
     54 }
     55 
     56 static const VirtioPCIDeviceTypeInfo vhost_user_gpio_pci_info = {
     57     .base_name = TYPE_VHOST_USER_GPIO_PCI,
     58     .non_transitional_name = "vhost-user-gpio-pci",
     59     .instance_size = sizeof(VHostUserGPIOPCI),
     60     .instance_init = vhost_user_gpio_pci_instance_init,
     61     .class_init = vhost_user_gpio_pci_class_init,
     62 };
     63 
     64 static void vhost_user_gpio_pci_register(void)
     65 {
     66     virtio_pci_types_register(&vhost_user_gpio_pci_info);
     67 }
     68 
     69 type_init(vhost_user_gpio_pci_register);