Page 2 of 436 Copyright © 2016-2019 Arm or its affiliates. All rights reserved. ARM IHI 0070C.a
Non-Confidential
System Memory Management Unit Architecture Specification
Copyright © 2016-2019 Arm Limited or its affiliates. All rights reserved.
Release information
Changes made to this document:
Date Issue Confidentiality Change
15 September 2016 A Non-Confidential First release
14 June 2017 B Non-Confidential Amendments and clarifications.
16 March 2018 C Non-confidential Update with SMMUv3.2 architecture. Further
amendments and clarifications.
18 July 2019 C.a Non-confidential Amendments and clarifications.
Proprietary Notice
This document is protected by copyright and other related rights and the practice or implementation of the
information contained in this document may be protected by one or more patents or pending patent applications.
No part of this document may be reproduced in any form by any means without the express prior written
permission of Arm. No license, express or implied, by estoppel or otherwise to any intellectual property
rights is granted by this document unless specifically stated.
Your access to the information in this document is conditional upon your acceptance that you will not use or
permit others to use the information for the purposes of determining whether implementations infringe any third
party patents.
THIS DOCUMENT IS PROVIDED “AS IS”. ARM PROVIDES NO REPRESENTATIONS AND NO WARRANTIES,
EXPRESS, IMPLIED OR STATUTORY, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
MERCHANTABILITY, SATISFACTORY QUALITY, NON-INFRINGEMENT OR FITNESS FOR A PARTICULAR
PURPOSE WITH RESPECT TO THE DOCUMENT. For the avoidance of doubt, Arm makes no representation
with respect to, and has undertaken no analysis to identify or understand the scope and content of, patents,
copyrights, trade secrets, or other rights.
This document may include technical inaccuracies or typographical errors.
TO THE EXTENT NOT PROHIBITED BY LAW, IN NO EVENT WILL ARM BE LIABLE FOR ANY DAMAGES,
INCLUDING WITHOUT LIMITATION ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE, OR
CONSEQUENTIAL DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
ARISING OUT OF ANY USE OF THIS DOCUMENT, EVEN IF ARM HAS BEEN ADVISED OF THE POSSIBILITY
OF SUCH DAMAGES.
This document consists solely of commercial items. You shall be responsible for ensuring that any use,
duplication or disclosure of this document complies fully with any relevant export laws and regulations to assure
评论0