diff options
Diffstat (limited to 'hw/virtio/vhost-user-fs-pci.c')
-rw-r--r-- | hw/virtio/vhost-user-fs-pci.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/hw/virtio/vhost-user-fs-pci.c b/hw/virtio/vhost-user-fs-pci.c new file mode 100644 index 0000000..933a3f2 --- /dev/null +++ b/hw/virtio/vhost-user-fs-pci.c @@ -0,0 +1,85 @@ +/* + * Vhost-user filesystem virtio device PCI glue + * + * Copyright 2018-2019 Red Hat, Inc. + * + * Authors: + * Dr. David Alan Gilbert <dgilbert@redhat.com> + * + * This work is licensed under the terms of the GNU GPL, version 2 or + * (at your option) any later version. See the COPYING file in the + * top-level directory. + */ + +#include "qemu/osdep.h" +#include "hw/qdev-properties.h" +#include "hw/virtio/vhost-user-fs.h" +#include "virtio-pci.h" + +struct VHostUserFSPCI { + VirtIOPCIProxy parent_obj; + VHostUserFS vdev; +}; + +typedef struct VHostUserFSPCI VHostUserFSPCI; + +#define TYPE_VHOST_USER_FS_PCI "vhost-user-fs-pci-base" + +#define VHOST_USER_FS_PCI(obj) \ + OBJECT_CHECK(VHostUserFSPCI, (obj), TYPE_VHOST_USER_FS_PCI) + +static Property vhost_user_fs_pci_properties[] = { + DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, + DEV_NVECTORS_UNSPECIFIED), + DEFINE_PROP_END_OF_LIST(), +}; + +static void vhost_user_fs_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) +{ + VHostUserFSPCI *dev = VHOST_USER_FS_PCI(vpci_dev); + DeviceState *vdev = DEVICE(&dev->vdev); + + if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) { + vpci_dev->nvectors = dev->vdev.conf.num_request_queues + 1; + } + + qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus)); + object_property_set_bool(OBJECT(vdev), true, "realized", errp); +} + +static void vhost_user_fs_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_fs_pci_realize; + set_bit(DEVICE_CATEGORY_STORAGE, dc->categories); + dc->props = vhost_user_fs_pci_properties; + 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_STORAGE_OTHER; +} + +static void vhost_user_fs_pci_instance_init(Object *obj) +{ + VHostUserFSPCI *dev = VHOST_USER_FS_PCI(obj); + + virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), + TYPE_VHOST_USER_FS); +} + +static const VirtioPCIDeviceTypeInfo vhost_user_fs_pci_info = { + .base_name = TYPE_VHOST_USER_FS_PCI, + .non_transitional_name = "vhost-user-fs-pci", + .instance_size = sizeof(VHostUserFSPCI), + .instance_init = vhost_user_fs_pci_instance_init, + .class_init = vhost_user_fs_pci_class_init, +}; + +static void vhost_user_fs_pci_register(void) +{ + virtio_pci_types_register(&vhost_user_fs_pci_info); +} + +type_init(vhost_user_fs_pci_register); |