425 	int r;  in assigned_device_enable_host_msi()  local
428 		r = pci_enable_msi(dev->dev);  in assigned_device_enable_host_msi()
429 		if (r)  in assigned_device_enable_host_msi()
430 			return r;  in assigned_device_enable_host_msi()
447 	int i, r = -EINVAL;  in assigned_device_enable_host_msix()  local
452 		return r;  in assigned_device_enable_host_msix()
454 	r = pci_enable_msix_exact(dev->dev,  in assigned_device_enable_host_msix()
456 	if (r)  in assigned_device_enable_host_msix()
457 		return r;  in assigned_device_enable_host_msix()
460 		r = request_threaded_irq(dev->host_msix_entries[i].vector,  in assigned_device_enable_host_msix()
464 		if (r)  in assigned_device_enable_host_msix()
473 	return r;  in assigned_device_enable_host_msix()
507 	int r = -EEXIST;  in assign_host_irq()  local
510 		return r;  in assign_host_irq()
517 		r = assigned_device_enable_host_intx(kvm, dev);  in assign_host_irq()
520 		r = assigned_device_enable_host_msi(kvm, dev);  in assign_host_irq()
523 		r = assigned_device_enable_host_msix(kvm, dev);  in assign_host_irq()
526 		r = -EINVAL;  in assign_host_irq()
530 	if (!r)  in assign_host_irq()
533 	return r;  in assign_host_irq()
542 	int r = -EEXIST;  in assign_guest_irq()  local
545 		return r;  in assign_guest_irq()
555 		r = assigned_device_enable_guest_intx(kvm, dev, irq);  in assign_guest_irq()
558 		r = assigned_device_enable_guest_msi(kvm, dev, irq);  in assign_guest_irq()
561 		r = assigned_device_enable_guest_msix(kvm, dev, irq);  in assign_guest_irq()
564 		r = -EINVAL;  in assign_guest_irq()
567 	if (!r) {  in assign_guest_irq()
576 	return r;  in assign_guest_irq()
583 	int r = -EINVAL;  in kvm_vm_ioctl_assign_irq()  local
588 		return r;  in kvm_vm_ioctl_assign_irq()
591 	r = -ENODEV;  in kvm_vm_ioctl_assign_irq()
600 	r = -EINVAL;  in kvm_vm_ioctl_assign_irq()
609 	r = 0;  in kvm_vm_ioctl_assign_irq()
611 		r = assign_host_irq(kvm, match, host_irq_type);  in kvm_vm_ioctl_assign_irq()
612 	if (r)  in kvm_vm_ioctl_assign_irq()
616 		r = assign_guest_irq(kvm, match, assigned_irq, guest_irq_type);  in kvm_vm_ioctl_assign_irq()
619 	return r;  in kvm_vm_ioctl_assign_irq()
626 	int r = -ENODEV;  in kvm_vm_ioctl_deassign_dev_irq()  local
639 	r = kvm_deassign_irq(kvm, match, irq_type);  in kvm_vm_ioctl_deassign_dev_irq()
642 	return r;  in kvm_vm_ioctl_deassign_dev_irq()
665 		int r;  in probe_sysfs_permissions()  local
680 		r = kern_path(syspath, LOOKUP_FOLLOW, &path);  in probe_sysfs_permissions()
682 		if (r)  in probe_sysfs_permissions()
683 			return r;  in probe_sysfs_permissions()
687 		r = inode_permission(inode, MAY_READ | MAY_WRITE | MAY_ACCESS);  in probe_sysfs_permissions()
689 		if (r)  in probe_sysfs_permissions()
690 			return r;  in probe_sysfs_permissions()
708 	int r = 0, idx;  in kvm_vm_ioctl_assign_device()  local
722 		r = -EEXIST;  in kvm_vm_ioctl_assign_device()
730 		r = -ENOMEM;  in kvm_vm_ioctl_assign_device()
738 		r = -EINVAL;  in kvm_vm_ioctl_assign_device()
744 		r = -EPERM;  in kvm_vm_ioctl_assign_device()
748 	r = probe_sysfs_permissions(dev);  in kvm_vm_ioctl_assign_device()
749 	if (r)  in kvm_vm_ioctl_assign_device()
754 		r = -EBUSY;  in kvm_vm_ioctl_assign_device()
757 	r = pci_request_regions(dev, "kvm_assigned_device");  in kvm_vm_ioctl_assign_device()
758 	if (r) {  in kvm_vm_ioctl_assign_device()
789 		r = kvm_iommu_map_guest(kvm);  in kvm_vm_ioctl_assign_device()
790 		if (r)  in kvm_vm_ioctl_assign_device()
793 	r = kvm_assign_device(kvm, match->dev);  in kvm_vm_ioctl_assign_device()
794 	if (r)  in kvm_vm_ioctl_assign_device()
800 	return r;  in kvm_vm_ioctl_assign_device()
815 	return r;  in kvm_vm_ioctl_assign_device()
821 	int r = 0;  in kvm_vm_ioctl_deassign_device()  local
831 		r = -EINVAL;  in kvm_vm_ioctl_deassign_device()
841 	return r;  in kvm_vm_ioctl_deassign_device()
848 	int r = 0;  in kvm_vm_ioctl_set_msix_nr()  local
856 		r = -EINVAL;  in kvm_vm_ioctl_set_msix_nr()
864 			r = -EINVAL;  in kvm_vm_ioctl_set_msix_nr()
872 			r = -ENOMEM;  in kvm_vm_ioctl_set_msix_nr()
880 			r = -ENOMEM;  in kvm_vm_ioctl_set_msix_nr()
884 		r = -EINVAL;  in kvm_vm_ioctl_set_msix_nr()
887 	return r;  in kvm_vm_ioctl_set_msix_nr()
893 	int r = 0, i;  in kvm_vm_ioctl_set_msix_entry()  local
902 		r = -EINVAL;  in kvm_vm_ioctl_set_msix_entry()
915 		r = -ENOSPC;  in kvm_vm_ioctl_set_msix_entry()
922 	return r;  in kvm_vm_ioctl_set_msix_entry()
928 	int r = 0;  in kvm_vm_ioctl_set_pci_irq_mask()  local
936 		r = -ENODEV;  in kvm_vm_ioctl_set_pci_irq_mask()
971 	return r;  in kvm_vm_ioctl_set_pci_irq_mask()
978 	int r;  in kvm_vm_ioctl_assigned_device()  local
984 		r = -EFAULT;  in kvm_vm_ioctl_assigned_device()
987 		r = kvm_vm_ioctl_assign_device(kvm, &assigned_dev);  in kvm_vm_ioctl_assigned_device()
988 		if (r)  in kvm_vm_ioctl_assigned_device()
993 		r = -EOPNOTSUPP;  in kvm_vm_ioctl_assigned_device()
999 		r = -EFAULT;  in kvm_vm_ioctl_assigned_device()
1002 		r = kvm_vm_ioctl_assign_irq(kvm, &assigned_irq);  in kvm_vm_ioctl_assigned_device()
1003 		if (r)  in kvm_vm_ioctl_assigned_device()
1010 		r = -EFAULT;  in kvm_vm_ioctl_assigned_device()
1013 		r = kvm_vm_ioctl_deassign_dev_irq(kvm, &assigned_irq);  in kvm_vm_ioctl_assigned_device()
1014 		if (r)  in kvm_vm_ioctl_assigned_device()
1021 		r = -EFAULT;  in kvm_vm_ioctl_assigned_device()
1024 		r = kvm_vm_ioctl_deassign_device(kvm, &assigned_dev);  in kvm_vm_ioctl_assigned_device()
1025 		if (r)  in kvm_vm_ioctl_assigned_device()
1031 		r = -EFAULT;  in kvm_vm_ioctl_assigned_device()
1034 		r = kvm_vm_ioctl_set_msix_nr(kvm, &entry_nr);  in kvm_vm_ioctl_assigned_device()
1035 		if (r)  in kvm_vm_ioctl_assigned_device()
1041 		r = -EFAULT;  in kvm_vm_ioctl_assigned_device()
1044 		r = kvm_vm_ioctl_set_msix_entry(kvm, &entry);  in kvm_vm_ioctl_assigned_device()
1045 		if (r)  in kvm_vm_ioctl_assigned_device()
1052 		r = -EFAULT;  in kvm_vm_ioctl_assigned_device()
1055 		r = kvm_vm_ioctl_set_pci_irq_mask(kvm, &assigned_dev);  in kvm_vm_ioctl_assigned_device()
1059 		r = -ENOTTY;  in kvm_vm_ioctl_assigned_device()
1063 	return r;  in kvm_vm_ioctl_assigned_device()