diff options
| -rw-r--r-- | hw/virtio/meson.build | 1 | ||||
| -rw-r--r-- | hw/virtio/vdpa-dev-pci.c | 102 |
2 files changed, 103 insertions, 0 deletions
diff --git a/hw/virtio/meson.build b/hw/virtio/meson.build index 54d6d29af7..559b80cb28 100644 --- a/hw/virtio/meson.build +++ b/hw/virtio/meson.build @@ -57,6 +57,7 @@ virtio_pci_ss.add(when: 'CONFIG_VIRTIO_SERIAL', if_true: files('virtio-serial-pc virtio_pci_ss.add(when: 'CONFIG_VIRTIO_PMEM', if_true: files('virtio-pmem-pci.c')) virtio_pci_ss.add(when: 'CONFIG_VIRTIO_IOMMU', if_true: files('virtio-iommu-pci.c')) virtio_pci_ss.add(when: 'CONFIG_VIRTIO_MEM', if_true: files('virtio-mem-pci.c')) +virtio_pci_ss.add(when: 'CONFIG_VHOST_VDPA_DEV', if_true: files('vdpa-dev-pci.c')) virtio_ss.add_all(when: 'CONFIG_VIRTIO_PCI', if_true: virtio_pci_ss) diff --git a/hw/virtio/vdpa-dev-pci.c b/hw/virtio/vdpa-dev-pci.c new file mode 100644 index 0000000000..5446e6b393 --- /dev/null +++ b/hw/virtio/vdpa-dev-pci.c @@ -0,0 +1,102 @@ +/* + * Vhost Vdpa Device PCI Bindings + * + * Copyright (c) Huawei Technologies Co., Ltd. 2022. All Rights Reserved. + * + * Authors: + * Longpeng <longpeng2@huawei.com> + * + * Largely based on the "vhost-user-blk-pci.c" and "vhost-user-blk.c" + * implemented by: + * Changpeng Liu <changpeng.liu@intel.com> + * + * This work is licensed under the terms of the GNU LGPL, version 2 or later. + * See the COPYING.LIB file in the top-level directory. + */ +#include "qemu/osdep.h" +#include <sys/ioctl.h> +#include <linux/vhost.h> +#include "hw/virtio/virtio.h" +#include "hw/virtio/vdpa-dev.h" +#include "hw/pci/pci.h" +#include "hw/qdev-properties.h" +#include "qapi/error.h" +#include "qemu/error-report.h" +#include "qemu/module.h" +#include "hw/virtio/virtio-pci.h" +#include "qom/object.h" + + +typedef struct VhostVdpaDevicePCI VhostVdpaDevicePCI; + +#define TYPE_VHOST_VDPA_DEVICE_PCI "vhost-vdpa-device-pci-base" +DECLARE_INSTANCE_CHECKER(VhostVdpaDevicePCI, VHOST_VDPA_DEVICE_PCI, + TYPE_VHOST_VDPA_DEVICE_PCI) + +struct VhostVdpaDevicePCI { + VirtIOPCIProxy parent_obj; + VhostVdpaDevice vdev; +}; + +static void vhost_vdpa_device_pci_instance_init(Object *obj) +{ + VhostVdpaDevicePCI *dev = VHOST_VDPA_DEVICE_PCI(obj); + + virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev), + TYPE_VHOST_VDPA_DEVICE); + object_property_add_alias(obj, "bootindex", OBJECT(&dev->vdev), + "bootindex"); +} + +static Property vhost_vdpa_device_pci_properties[] = { + DEFINE_PROP_END_OF_LIST(), +}; + +static int vhost_vdpa_device_pci_post_init(VhostVdpaDevice *v, Error **errp) +{ + VhostVdpaDevicePCI *dev = container_of(v, VhostVdpaDevicePCI, vdev); + VirtIOPCIProxy *vpci_dev = &dev->parent_obj; + + vpci_dev->class_code = virtio_pci_get_class_id(v->vdev_id); + vpci_dev->trans_devid = virtio_pci_get_trans_devid(v->vdev_id); + /* one for config vector */ + vpci_dev->nvectors = v->num_queues + 1; + + return 0; +} + +static void +vhost_vdpa_device_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp) +{ + VhostVdpaDevicePCI *dev = VHOST_VDPA_DEVICE_PCI(vpci_dev); + + dev->vdev.post_init = vhost_vdpa_device_pci_post_init; + qdev_realize(DEVICE(&dev->vdev), BUS(&vpci_dev->bus), errp); +} + +static void vhost_vdpa_device_pci_class_init(ObjectClass *klass, void *data) +{ + DeviceClass *dc = DEVICE_CLASS(klass); + VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass); + + set_bit(DEVICE_CATEGORY_MISC, dc->categories); + device_class_set_props(dc, vhost_vdpa_device_pci_properties); + k->realize = vhost_vdpa_device_pci_realize; +} + +static const VirtioPCIDeviceTypeInfo vhost_vdpa_device_pci_info = { + .base_name = TYPE_VHOST_VDPA_DEVICE_PCI, + .generic_name = "vhost-vdpa-device-pci", + .transitional_name = "vhost-vdpa-device-pci-transitional", + .non_transitional_name = "vhost-vdpa-device-pci-non-transitional", + .instance_size = sizeof(VhostVdpaDevicePCI), + .instance_init = vhost_vdpa_device_pci_instance_init, + .class_init = vhost_vdpa_device_pci_class_init, +}; + +static void vhost_vdpa_device_pci_register(void) +{ + virtio_pci_types_register(&vhost_vdpa_device_pci_info); +} + +type_init(vhost_vdpa_device_pci_register); |