79 import_buffer(import_export_t *iep, void *uaddr, void *kaddr, size_t size,  in import_buffer()  argument
82 	iep->ie_uaddr = uaddr;  in import_buffer()
83 	iep->ie_size = size;  in import_buffer()
84 	iep->ie_flags = flags & IE_EXPORT;  in import_buffer()
87 		*iep = null_ie;  in import_buffer()
92 		iep->ie_kaddr = kmem_alloc(size, KM_SLEEP);  in import_buffer()
93 		iep->ie_flags |= IE_FREE;  in import_buffer()
95 		iep->ie_kaddr = kaddr;  in import_buffer()
96 		iep->ie_flags &= ~IE_FREE;  in import_buffer()
100 	    (ddi_copyin(uaddr, iep->ie_kaddr, size, 0) != 0)) {  in import_buffer()
101 		if (iep->ie_flags & IE_FREE) {  in import_buffer()
102 			kmem_free(iep->ie_kaddr, iep->ie_size);  in import_buffer()
103 			iep->ie_kaddr = NULL;  in import_buffer()
104 			iep->ie_flags = 0;  in import_buffer()
113 export_buffer(import_export_t *iep, int *error)  in export_buffer()  argument
117 	if (iep->ie_size == 0 || iep->ie_uaddr == NULL)  in export_buffer()
125 	if ((iep->ie_flags & IE_EXPORT) && (*error >= 0) &&  in export_buffer()
126 	    (ddi_copyout(iep->ie_kaddr, iep->ie_uaddr, iep->ie_size, 0) != 0))  in export_buffer()
128 	if (iep->ie_flags & IE_FREE) {  in export_buffer()
129 		kmem_free(iep->ie_kaddr, iep->ie_size);  in export_buffer()
130 		iep->ie_kaddr = NULL;  in export_buffer()
131 		iep->ie_flags = 0;  in export_buffer()
148 import_handle(import_export_t *iep, void *field, size_t size, int flags)  in import_handle()  argument
155 	err = import_buffer(iep, ptr, NULL, size, (flags));  in import_handle()
158 		set_xen_guest_handle((*hdl), (void *)((iep)->ie_kaddr));  in import_handle()