qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
Log | Files | Refs | Submodules | LICENSE

vhost-user-vsock-pci.c (2709B)

      1 /*
      2  * Vhost-user vsock PCI Bindings
      3  *
      4  * Copyright 2020 Red Hat, Inc.
      5  *
      6  * This work is licensed under the terms of the GNU GPL, version 2 or
      7  * (at your option) any later version.  See the COPYING file in the
      8  * top-level directory.
      9  */
     10 
     11 #include "qemu/osdep.h"
     12 
     13 #include "hw/virtio/virtio-pci.h"
     14 #include "hw/qdev-properties.h"
     15 #include "hw/virtio/vhost-user-vsock.h"
     16 #include "qom/object.h"
     17 
     18 typedef struct VHostUserVSockPCI VHostUserVSockPCI;
     19 
     20 /*
     21  * vhost-user-vsock-pci: This extends VirtioPCIProxy.
     22  */
     23 #define TYPE_VHOST_USER_VSOCK_PCI "vhost-user-vsock-pci-base"
     24 DECLARE_INSTANCE_CHECKER(VHostUserVSockPCI, VHOST_USER_VSOCK_PCI,
     25                          TYPE_VHOST_USER_VSOCK_PCI)
     26 
     27 struct VHostUserVSockPCI {
     28     VirtIOPCIProxy parent_obj;
     29     VHostUserVSock vdev;
     30 };
     31 
     32 /* vhost-user-vsock-pci */
     33 
     34 static Property vhost_user_vsock_pci_properties[] = {
     35     DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3),
     36     DEFINE_PROP_END_OF_LIST(),
     37 };
     38 
     39 static void vhost_user_vsock_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
     40 {
     41     VHostUserVSockPCI *dev = VHOST_USER_VSOCK_PCI(vpci_dev);
     42     DeviceState *vdev = DEVICE(&dev->vdev);
     43 
     44     /* unlike vhost-vsock, we do not need to care about pre-5.1 compat */
     45     virtio_pci_force_virtio_1(vpci_dev);
     46 
     47     qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
     48 }
     49 
     50 static void vhost_user_vsock_pci_class_init(ObjectClass *klass, void *data)
     51 {
     52     DeviceClass *dc = DEVICE_CLASS(klass);
     53     VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
     54     PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
     55     k->realize = vhost_user_vsock_pci_realize;
     56     set_bit(DEVICE_CATEGORY_MISC, dc->categories);
     57     device_class_set_props(dc, vhost_user_vsock_pci_properties);
     58     pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
     59     pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_VSOCK;
     60     pcidev_k->revision = 0x00;
     61     pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER;
     62 }
     63 
     64 static void vhost_user_vsock_pci_instance_init(Object *obj)
     65 {
     66     VHostUserVSockPCI *dev = VHOST_USER_VSOCK_PCI(obj);
     67 
     68     virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
     69                                 TYPE_VHOST_USER_VSOCK);
     70 }
     71 
     72 static const VirtioPCIDeviceTypeInfo vhost_user_vsock_pci_info = {
     73     .base_name             = TYPE_VHOST_USER_VSOCK_PCI,
     74     .generic_name          = "vhost-user-vsock-pci",
     75     .non_transitional_name = "vhost-user-vsock-pci-non-transitional",
     76     .instance_size = sizeof(VHostUserVSockPCI),
     77     .instance_init = vhost_user_vsock_pci_instance_init,
     78     .class_init    = vhost_user_vsock_pci_class_init,
     79 };
     80 
     81 static void virtio_pci_vhost_register(void)
     82 {
     83     virtio_pci_types_register(&vhost_user_vsock_pci_info);
     84 }
     85 
     86 type_init(virtio_pci_vhost_register)