linux/drivers/vfio/device_cdev.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2023 Intel Corporation.
 */
#include <linux/vfio.h>
#include <linux/iommufd.h>

#include "vfio.h"

static dev_t device_devt;

void vfio_init_device_cdev(struct vfio_device *device)
{ … }

/*
 * device access via the fd opened by this function is blocked until
 * .open_device() is called successfully during BIND_IOMMUFD.
 */
int vfio_device_fops_cdev_open(struct inode *inode, struct file *filep)
{ … }

static void vfio_df_get_kvm_safe(struct vfio_device_file *df)
{ … }

long vfio_df_ioctl_bind_iommufd(struct vfio_device_file *df,
				struct vfio_device_bind_iommufd __user *arg)
{ … }

void vfio_df_unbind_iommufd(struct vfio_device_file *df)
{ … }

int vfio_df_ioctl_attach_pt(struct vfio_device_file *df,
			    struct vfio_device_attach_iommufd_pt __user *arg)
{ … }

int vfio_df_ioctl_detach_pt(struct vfio_device_file *df,
			    struct vfio_device_detach_iommufd_pt __user *arg)
{ … }

static char *vfio_device_devnode(const struct device *dev, umode_t *mode)
{ … }

int vfio_cdev_init(struct class *device_class)
{ … }

void vfio_cdev_cleanup(void)
{ … }