1 // SPDX-License-Identifier: GPL-2.0-only
31 #define DRIVER_DESC     "VFIO PCI - User Level meta-driver"
35 MODULE_PARM_DESC(ids, "Initial PCI IDs to add to the vfio driver, format is \"vendor:device[:subven…
40 …king.  If this resolves problems for specific devices, report lspci -vvvxxx to linux-pci@vger.kern…
45 MODULE_PARM_DESC(disable_vga, "Disable VGA resource access through vfio-pci");
56 …-IOV configuration.  Enabling SR-IOV on a PF typically requires support of the userspace PF driver…
65 	switch (pdev->vendor) {  in vfio_pci_dev_in_denylist()
67 		switch (pdev->device) {  in vfio_pci_dev_in_denylist()
92 			 "device denylist disabled - allowing device %04x:%04x.\n",  in vfio_pci_is_denylisted()
93 			 pdev->vendor, pdev->device);  in vfio_pci_is_denylisted()
97 	pci_warn(pdev, "%04x:%04x exists in vfio-pci device denylist, driver probing disallowed.\n",  in vfio_pci_is_denylisted()
98 		 pdev->vendor, pdev->device);  in vfio_pci_is_denylisted()
107 	struct pci_dev *pdev = vdev->pdev;  in vfio_pci_open_device()
115 	    pdev->vendor == PCI_VENDOR_ID_INTEL &&  in vfio_pci_open_device()
118 		if (ret && ret != -ENODEV) {  in vfio_pci_open_device()
131 	.name		= "vfio-pci",
149 static int vfio_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)  in vfio_pci_probe()  argument
155 		return -EINVAL;  in vfio_pci_probe()
157 	vdev = vfio_alloc_device(vfio_pci_core_device, vdev, &pdev->dev,  in vfio_pci_probe()
162 	dev_set_drvdata(&pdev->dev, vdev);  in vfio_pci_probe()
169 	vfio_put_device(&vdev->vdev);  in vfio_pci_probe()
175 	struct vfio_pci_core_device *vdev = dev_get_drvdata(&pdev->dev);  in vfio_pci_remove()
178 	vfio_put_device(&vdev->vdev);  in vfio_pci_remove()
183 	struct vfio_pci_core_device *vdev = dev_get_drvdata(&pdev->dev);  in vfio_pci_sriov_configure()
186 		return -ENOENT;  in vfio_pci_sriov_configure()
199 	.name			= "vfio-pci",
210 	char *p, *id;  in vfio_pci_fill_ids()  local
219 	while ((id = strsep(&p, ","))) {  in vfio_pci_fill_ids()
220 		unsigned int vendor, device, subvendor = PCI_ANY_ID,  in vfio_pci_fill_ids()  local
224 		if (!strlen(id))  in vfio_pci_fill_ids()
227 		fields = sscanf(id, "%x:%x:%x:%x:%x:%x",  in vfio_pci_fill_ids()
228 				&vendor, &device, &subvendor, &subdevice,  in vfio_pci_fill_ids()
232 			pr_warn("invalid id string \"%s\"\n", id);  in vfio_pci_fill_ids()
236 		rc = pci_add_dynid(&vfio_pci_driver, vendor, device,  in vfio_pci_fill_ids()
239 			pr_warn("failed to add dynamic id [%04x:%04x[%04x:%04x]] class %#08x/%08x (%d)\n",  in vfio_pci_fill_ids()
240 				vendor, device, subvendor, subdevice,  in vfio_pci_fill_ids()
244 				vendor, device, subvendor, subdevice,  in vfio_pci_fill_ids()