linux/drivers/xen/xen-pciback/vpci.c

// SPDX-License-Identifier: GPL-2.0
/*
 * PCI Backend - Provides a Virtual PCI bus (with real devices)
 *               to the frontend
 *
 *   Author: Ryan Wilson <[email protected]>
 */

#define pr_fmt(fmt) …
#define dev_fmt …

#include <linux/list.h>
#include <linux/slab.h>
#include <linux/pci.h>
#include <linux/mutex.h>
#include "pciback.h"

#define PCI_SLOT_MAX …

struct vpci_dev_data { … };

static inline struct list_head *list_first(struct list_head *head)
{ … }

static struct pci_dev *__xen_pcibk_get_pci_dev(struct xen_pcibk_device *pdev,
					       unsigned int domain,
					       unsigned int bus,
					       unsigned int devfn)
{ … }

static inline int match_slot(struct pci_dev *l, struct pci_dev *r)
{ … }

static int __xen_pcibk_add_pci_dev(struct xen_pcibk_device *pdev,
				   struct pci_dev *dev, int devid,
				   publish_pci_dev_cb publish_cb)
{ … }

static void __xen_pcibk_release_pci_dev(struct xen_pcibk_device *pdev,
					struct pci_dev *dev, bool lock)
{ … }

static int __xen_pcibk_init_devices(struct xen_pcibk_device *pdev)
{ … }

static int __xen_pcibk_publish_pci_roots(struct xen_pcibk_device *pdev,
					 publish_pci_root_cb publish_cb)
{ … }

static void __xen_pcibk_release_devices(struct xen_pcibk_device *pdev)
{ … }

static int __xen_pcibk_get_pcifront_dev(struct pci_dev *pcidev,
					struct xen_pcibk_device *pdev,
					unsigned int *domain, unsigned int *bus,
					unsigned int *devfn)
{ … }

const struct xen_pcibk_backend xen_pcibk_vpci_backend = …;