xnu-1228.tar.gz

[apple/xnu.git] / osfmk / i386 / io_emulate.c

diff --git a/osfmk/i386/io_emulate.c b/osfmk/i386/io_emulate.c
deleted file mode 100644 (file)
index a84c041..0000000
--- a/osfmk/i386/io_emulate.c
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License").  You may not use this file except in compliance with the
- * License.  Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- * 
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * @OSF_COPYRIGHT@
- */
-/* 
- * Mach Operating System
- * Copyright (c) 1991,1990 Carnegie Mellon University
- * All Rights Reserved.
- * 
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- * 
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- * 
- * Carnegie Mellon requests users of this software to return to
- * 
- *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
- *  School of Computer Science
- *  Carnegie Mellon University
- *  Pittsburgh PA 15213-3890
- * 
- * any improvements or extensions that they make and grant Carnegie Mellon
- * the rights to redistribute these changes.
- */
-/*
- */
-
-#include <platforms.h>
-#include <mach/boolean.h>
-#include <mach/port.h>
-#include <kern/thread.h>
-#include <kern/task.h>
-
-#include <ipc/ipc_port.h>
-#include <ipc/ipc_space.h>
-#include <ipc/ipc_right.h>
-#include <ipc/ipc_object.h>
-#include <ipc/ipc_entry.h>
-
-#include <i386/thread.h>
-#include <i386/io_port.h>
-#include <i386/io_emulate.h>
-#include <i386/iopb_entries.h>
-
-#if 1
-int
-emulate_io(
-       __unused x86_saved_state32_t            *regs,
-       __unused int                            opcode,
-       __unused int                            io_port)
-{
-       /* At the moment, we are not allowing I/O emulation 
-        *
-        * FIXME - this should probably change due to 
-        * the Window Server's need to map I/O ports into its space.
-        */
-
-       return EM_IO_ERROR;
-}
-#else
-int
-emulate_io(
-       struct i386_saved_state *regs,
-       int                     opcode,
-       int                     io_port)
-{
-       thread_t        thread = current_thread();
-       at386_io_lock_state();
-
-       if (iopl_emulate(regs, opcode, io_port))
-           return EM_IO_DONE;
-
-       if (iopb_check_mapping(thread, iopl_device))
-           return EM_IO_ERROR;
-
-       /*
-        *      Check for send rights to the IOPL device port.
-        */
-       if (iopl_device_port == IP_NULL)
-           return EM_IO_ERROR;
-       {
-           ipc_space_t space = current_space();
-           mach_port_name_t    name;
-           ipc_entry_t entry;
-           boolean_t   has_rights = FALSE;
-           ipc_entry_bits_t *capability;
-
-           is_write_lock(space);
-           assert(space->is_active);
-
-           if (ipc_right_reverse(space, (ipc_object_t) iopl_device_port,
-                                 &name, &entry, &capability)) {
-               /* iopl_device_port is locked and active */
-               if (capability[space->server_id] & MACH_PORT_TYPE_SEND)
-                   has_rights = TRUE;
-               ip_unlock(iopl_device_port);
-           }
-
-           is_write_unlock(space);
-           if (!has_rights) {
-               return EM_IO_ERROR;
-           }
-       }
-
-       /*
-        * Map the IOPL port set into the thread.
-        */
-
-       if (i386_io_port_add(thread, iopl_device)
-           != KERN_SUCCESS) 
-               return EM_IO_ERROR;
-
-       /*
-        * Make the thread use its IO_TSS to get the IO permissions;
-        * it may not have had one before this.
-        */
-       act_machine_switch_pcb(thread);
-
-       return EM_IO_RETRY;
-}
-#endif