OpenE2K
/
qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

vhost-user-rng-pci: Add vhost-user-rng-pci implementation 

This patch provides a PCI bus interface to the vhost-user-rng backend.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Message-Id: <20211012205904.4106769-3-mathieu.poirier@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Mathieu Poirier 2021-10-12 14:59:03 -06:00 committed by Michael S. Tsirkin
parent 821d28b88f
commit c7160fff7d
2 changed files with 80 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
hw/virtio/meson.build
View File

@ -28,6 +28,7 @@ virtio_ss.add(when: 'CONFIG_VIRTIO_MEM', if_true: files('virtio-mem.c'))
virtio_ss.add(when: 'CONFIG_VHOST_USER_I2C', if_true: files('vhost-user-i2c.c'))
virtio_ss.add(when: ['CONFIG_VIRTIO_PCI', 'CONFIG_VHOST_USER_I2C'], if_true: files('vhost-user-i2c-pci.c'))
virtio_ss.add(when: 'CONFIG_VHOST_USER_RNG', if_true: files('vhost-user-rng.c'))
virtio_ss.add(when: ['CONFIG_VHOST_USER_RNG', 'CONFIG_VIRTIO_PCI'], if_true: files('vhost-user-rng-pci.c'))
virtio_pci_ss = ss.source_set()
virtio_pci_ss.add(when: 'CONFIG_VHOST_VSOCK', if_true: files('vhost-vsock-pci.c'))

79
hw/virtio/vhost-user-rng-pci.c Normal file
View File

@ -0,0 +1,79 @@
/*
* Vhost-user RNG virtio device PCI glue
*
* Copyright (c) 2021 Mathieu Poirier <mathieu.poirier@linaro.org>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "hw/qdev-properties.h"
#include "hw/virtio/vhost-user-rng.h"
#include "virtio-pci.h"
struct VHostUserRNGPCI {
VirtIOPCIProxy parent_obj;
VHostUserRNG vdev;
};
typedef struct VHostUserRNGPCI VHostUserRNGPCI;
#define TYPE_VHOST_USER_RNG_PCI "vhost-user-rng-pci-base"
DECLARE_INSTANCE_CHECKER(VHostUserRNGPCI, VHOST_USER_RNG_PCI,
TYPE_VHOST_USER_RNG_PCI)
static Property vhost_user_rng_pci_properties[] = {
DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors,
DEV_NVECTORS_UNSPECIFIED),
DEFINE_PROP_END_OF_LIST(),
};
static void vhost_user_rng_pci_realize(VirtIOPCIProxy *vpci_dev, Error **errp)
{
VHostUserRNGPCI *dev = VHOST_USER_RNG_PCI(vpci_dev);
DeviceState *vdev = DEVICE(&dev->vdev);
if (vpci_dev->nvectors == DEV_NVECTORS_UNSPECIFIED) {
vpci_dev->nvectors = 1;
}
qdev_realize(vdev, BUS(&vpci_dev->bus), errp);
}
static void vhost_user_rng_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_rng_pci_realize;
set_bit(DEVICE_CATEGORY_INPUT, dc->categories);
device_class_set_props(dc, vhost_user_rng_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_OTHERS;
}
static void vhost_user_rng_pci_instance_init(Object *obj)
{
VHostUserRNGPCI *dev = VHOST_USER_RNG_PCI(obj);
virtio_instance_init_common(obj, &dev->vdev, sizeof(dev->vdev),
TYPE_VHOST_USER_RNG);
}
static const VirtioPCIDeviceTypeInfo vhost_user_rng_pci_info = {
.base_name = TYPE_VHOST_USER_RNG_PCI,
.non_transitional_name = "vhost-user-rng-pci",
.instance_size = sizeof(VHostUserRNGPCI),
.instance_init = vhost_user_rng_pci_instance_init,
.class_init = vhost_user_rng_pci_class_init,
};
static void vhost_user_rng_pci_register(void)
{
virtio_pci_types_register(&vhost_user_rng_pci_info);
}
type_init(vhost_user_rng_pci_register);