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virtio: add vhost-user-vsock-pci device 

Add the PCI version of vhost-user-vsock

Launch QEMU like this:

  qemu -chardev socket,path=/tmp/vm.vsock,id=chr0 \
       -device vhost-user-vsock-pci,chardev=chr0

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20200522122512.87413-4-sgarzare@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Stefano Garzarella 2020-05-22 14:25:12 +02:00 committed by Michael S. Tsirkin
parent 5fe97d8829
commit 9b83bb2747
2 changed files with 85 additions and 0 deletions
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1
hw/virtio/Makefile.objs
View File

@ -22,6 +22,7 @@ obj-$(CONFIG_VHOST_USER_VSOCK) += vhost-vsock-common.o vhost-user-vsock.o
ifeq ($(CONFIG_VIRTIO_PCI),y)
obj-$(CONFIG_VHOST_VSOCK) += vhost-vsock-pci.o
obj-$(CONFIG_VHOST_USER_VSOCK) += vhost-user-vsock-pci.o
obj-$(CONFIG_VHOST_USER_BLK) += vhost-user-blk-pci.o
obj-$(CONFIG_VHOST_USER_INPUT) += vhost-user-input-pci.o
obj-$(CONFIG_VHOST_USER_SCSI) += vhost-user-scsi-pci.o

84
hw/virtio/vhost-user-vsock-pci.c Normal file
View File

@ -0,0 +1,84 @@
/*
* Vhost-user vsock PCI Bindings
*
* Copyright 2020 Red Hat, Inc.
*
* 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 "virtio-pci.h"
#include "hw/qdev-properties.h"
#include "hw/virtio/vhost-user-vsock.h"
typedef struct VHostUserVSockPCI VHostUserVSockPCI;
/*
* vhost-user-vsock-pci: This extends VirtioPCIProxy.
*/
#define TYPE_VHOST_USER_VSOCK_PCI "vhost-user-vsock-pci-base"
#define VHOST_USER_VSOCK_PCI(obj) \
OBJECT_CHECK(VHostUserVSockPCI, (obj), TYPE_VHOST_USER_VSOCK_PCI)
struct VHostUserVSockPCI {
VirtIOPCIProxy parent_obj;
VHostUserVSock vdev;
};
/* vhost-user-vsock-pci */
static Property vhost_user_vsock_pci_properties[] = {
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 3),
DEFINE_PROP_END_OF_LIST(),
};
static void vhost_user_vsock_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
{
VHostUserVSockPCI *dev = VHOST_USER_VSOCK_PCI(vpci_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
qdev_set_parent_bus(vdev, BUS(&vpci_dev->bus));
object_property_set_bool(OBJECT(vdev), true, "realized", errp);
}
static void vhost_user_vsock_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_vsock_pci_realize;
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
device_class_set_props(dc, vhost_user_vsock_pci_properties);
pcidev_k->vendor_id = PCI_VENDOR_ID_REDHAT_QUMRANET;
pcidev_k->device_id = PCI_DEVICE_ID_VIRTIO_VSOCK;
pcidev_k->revision = 0x00;
pcidev_k->class_id = PCI_CLASS_COMMUNICATION_OTHER;
}
static void vhost_user_vsock_pci_instance_init(Object *obj)
{
VHostUserVSockPCI *dev = VHOST_USER_VSOCK_PCI(obj);
virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
TYPE_VHOST_USER_VSOCK);
}
static const VirtioPCIDeviceTypeInfo vhost_user_vsock_pci_info = {
.base_name = TYPE_VHOST_USER_VSOCK_PCI,
.generic_name = "vhost-user-vsock-pci",
.transitional_name = "vhost-user-vsock-pci-transitional",
.non_transitional_name = "vhost-user-vsock-pci-non-transitional",
.instance_size = sizeof(VHostUserVSockPCI),
.instance_init = vhost_user_vsock_pci_instance_init,
.class_init = vhost_user_vsock_pci_class_init,
};
static void virtio_pci_vhost_register(void)
{
virtio_pci_types_register(&vhost_user_vsock_pci_info);
}
type_init(virtio_pci_vhost_register)