9d59bed1da
Add the PCI version of vhost-user-fs.
Launch QEMU like this:
qemu -chardev socket,path=/tmp/vhost-fs.sock,id=chr0
-device vhost-user-fs-pci,tag=myfs,chardev=chr0
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Sebastien Boeuf <sebastien.boeuf@intel.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20190930105135.27244-4-dgilbert@redhat.com>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
/*
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* Vhost-user filesystem virtio device PCI glue
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*
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* Copyright 2018-2019 Red Hat, Inc.
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*
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* Authors:
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* Dr. David Alan Gilbert <dgilbert@redhat.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* (at your option) any later version. See the COPYING file in the
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* top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "hw/qdev-properties.h"
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#include "hw/virtio/vhost-user-fs.h"
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#include "virtio-pci.h"
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struct VHostUserFSPCI {
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VirtIOPCIProxy parent_obj;
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VHostUserFS vdev;
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};
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typedef struct VHostUserFSPCI VHostUserFSPCI;
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#define TYPE_VHOST_USER_FS_PCI "vhost-user-fs-pci-base"
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#define VHOST_USER_FS_PCI(obj) \
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OBJECT_CHECK(VHostUserFSPCI, (obj), TYPE_VHOST_USER_FS_PCI)
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static Property vhost_user_fs_pci_properties[] = {
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DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
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DEV_NVECTORS_UNSPECIFIED),
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DEFINE_PROP_END_OF_LIST(),
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};
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static void vhost_user_fs_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
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{
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VHostUserFSPCI *dev = VHOST_USER_FS_PCI(vpci_dev);
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DeviceState *vdev = DEVICE(&dev->vdev);
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if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
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vpci_dev->nvectors = dev->vdev.conf.num_request_queues + 1;
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}
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qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
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object_property_set_bool(OBJECT(vdev), true, "realized", errp);
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}
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static void vhost_user_fs_pci_class_init(ObjectClass *klass, void *data)
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{
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DeviceClass *dc = DEVICE_CLASS(klass);
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VirtioPCIClass *k = VIRTIO_PCI_CLASS(klass);
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PCIDeviceClass *pcidev_k = PCI_DEVICE_CLASS(klass);
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k->realize = vhost_user_fs_pci_realize;
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set_bit(DEVICE_CATEGORY_STORAGE, dc->categories);
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dc->props = vhost_user_fs_pci_properties;
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pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
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pcidev_k->device_id = 0; /* Set by virtio-pci based on virtio id */
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pcidev_k->revision = 0x00;
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pcidev_k->class_id = PCI_CLASS_STORAGE_OTHER;
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}
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static void vhost_user_fs_pci_instance_init(Object *obj)
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{
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VHostUserFSPCI *dev = VHOST_USER_FS_PCI(obj);
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virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
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TYPE_VHOST_USER_FS);
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}
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static const VirtioPCIDeviceTypeInfo vhost_user_fs_pci_info = {
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.base_name = TYPE_VHOST_USER_FS_PCI,
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.non_transitional_name = "vhost-user-fs-pci",
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.instance_size = sizeof(VHostUserFSPCI),
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.instance_init = vhost_user_fs_pci_instance_init,
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.class_init = vhost_user_fs_pci_class_init,
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};
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static void vhost_user_fs_pci_register(void)
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{
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virtio_pci_types_register(&vhost_user_fs_pci_info);
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}
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type_init(vhost_user_fs_pci_register);
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