GB2557305A - Memory protection logic - Google Patents
Memory protection logic Download PDFInfo
- Publication number
- GB2557305A GB2557305A GB1620684.9A GB201620684A GB2557305A GB 2557305 A GB2557305 A GB 2557305A GB 201620684 A GB201620684 A GB 201620684A GB 2557305 A GB2557305 A GB 2557305A
- Authority
- GB
- United Kingdom
- Prior art keywords
- memory
- access
- protection
- microcontroller
- configuration registers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/14—Protection against unauthorised use of memory or access to memory
- G06F12/1416—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/14—Protection against unauthorised use of memory or access to memory
- G06F12/1416—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights
- G06F12/1425—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights the protection being physical, e.g. cell, word, block
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/14—Protection against unauthorised use of memory or access to memory
- G06F12/1416—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights
- G06F12/1425—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights the protection being physical, e.g. cell, word, block
- G06F12/1441—Protection against unauthorised use of memory or access to memory by checking the object accessibility, e.g. type of access defined by the memory independently of subject rights the protection being physical, e.g. cell, word, block for a range
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/14—Protection against unauthorised use of memory or access to memory
- G06F12/1458—Protection against unauthorised use of memory or access to memory by checking the subject access rights
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F12/00—Accessing, addressing or allocating within memory systems or architectures
- G06F12/14—Protection against unauthorised use of memory or access to memory
- G06F12/1458—Protection against unauthorised use of memory or access to memory by checking the subject access rights
- G06F12/1491—Protection against unauthorised use of memory or access to memory by checking the subject access rights in a hierarchical protection system, e.g. privilege levels, memory rings
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
- G06F21/74—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information operating in dual or compartmented mode, i.e. at least one secure mode
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/78—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure storage of data
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/82—Protecting input, output or interconnection devices
- G06F21/85—Protecting input, output or interconnection devices interconnection devices, e.g. bus-connected or in-line devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Software Systems (AREA)
- Mathematical Physics (AREA)
- Storage Device Security (AREA)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1620684.9A GB2557305A (en) | 2016-12-05 | 2016-12-05 | Memory protection logic |
PCT/GB2017/053644 WO2018104711A1 (en) | 2016-12-05 | 2017-12-04 | Memory protection logic |
TW106142391A TW201821998A (zh) | 2016-12-05 | 2017-12-04 | 記憶體保護邏輯 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1620684.9A GB2557305A (en) | 2016-12-05 | 2016-12-05 | Memory protection logic |
Publications (2)
Publication Number | Publication Date |
---|---|
GB201620684D0 GB201620684D0 (en) | 2017-01-18 |
GB2557305A true GB2557305A (en) | 2018-06-20 |
Family
ID=58159856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1620684.9A Withdrawn GB2557305A (en) | 2016-12-05 | 2016-12-05 | Memory protection logic |
Country Status (3)
Country | Link |
---|---|
GB (1) | GB2557305A (zh) |
TW (1) | TW201821998A (zh) |
WO (1) | WO2018104711A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4411538A1 (fr) * | 2023-02-03 | 2024-08-07 | STMicroelectronics International N.V. | Procede d'emulation de programmes de demarrage |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201810533D0 (en) * | 2018-06-27 | 2018-08-15 | Nordic Semiconductor Asa | Hardware protection of files in an intergrated-circuit device |
TWI688861B (zh) * | 2018-09-18 | 2020-03-21 | 新唐科技股份有限公司 | 資料處理裝置及其資料保護方法 |
CN109739673B (zh) * | 2018-12-05 | 2023-05-09 | 新华三技术有限公司合肥分公司 | 一种寄存器写入保护方法、逻辑装置及通信设备 |
GB2596103B (en) * | 2020-06-17 | 2022-06-15 | Graphcore Ltd | Dual level management |
GB2596102B (en) | 2020-06-17 | 2022-06-29 | Graphcore Ltd | Processing device comprising control bus |
WO2022157467A1 (en) * | 2021-01-19 | 2022-07-28 | Cirrus Logic International Semiconductor Limited | Integrated circuit with asymmetric access privileges |
US11809334B2 (en) * | 2021-01-19 | 2023-11-07 | Cirrus Logic Inc. | Integrated circuit with asymmetric access privileges |
US12039090B2 (en) | 2021-01-19 | 2024-07-16 | Cirrus Logic Inc. | Integrated circuit with asymmetric access privileges |
US11386019B1 (en) * | 2021-04-06 | 2022-07-12 | Mediatek Inc. | Data protection method and storage device |
IT202100021944A1 (it) * | 2021-08-17 | 2023-02-17 | St Microelectronics Srl | Schermatura di registri in dispositivi a semiconduttore |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5778444A (en) * | 1996-05-06 | 1998-07-07 | Motorola, Inc. | Method and apparatus for reset-sensitive and controlled register write accesses in a data processing system with user and test modes |
US20030014653A1 (en) * | 2001-07-10 | 2003-01-16 | Peter Moller | Memory device with data security in a processor |
GB2503583A (en) * | 2012-06-27 | 2014-01-01 | Nordic Semiconductor Asa | Erasing memory protection-configuration region only if protected region is in an erased state |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7313705B2 (en) * | 2002-01-22 | 2007-12-25 | Texas Instrument Incorporated | Implementation of a secure computing environment by using a secure bootloader, shadow memory, and protected memory |
WO2004046924A1 (en) * | 2002-11-18 | 2004-06-03 | Arm Limited | Processor switching between secure and non-secure modes |
US20080263256A1 (en) * | 2007-04-20 | 2008-10-23 | Motorola, Inc. | Logic Device with Write Protected Memory Management Unit Registers |
CN102929674B (zh) * | 2012-11-02 | 2016-02-10 | 威盛电子股份有限公司 | 电子装置以及开机方法 |
US9875358B2 (en) * | 2014-06-20 | 2018-01-23 | Microsoft Technology Licensing, Llc | Preventing code modification after boot |
-
2016
- 2016-12-05 GB GB1620684.9A patent/GB2557305A/en not_active Withdrawn
-
2017
- 2017-12-04 WO PCT/GB2017/053644 patent/WO2018104711A1/en active Application Filing
- 2017-12-04 TW TW106142391A patent/TW201821998A/zh unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5778444A (en) * | 1996-05-06 | 1998-07-07 | Motorola, Inc. | Method and apparatus for reset-sensitive and controlled register write accesses in a data processing system with user and test modes |
US20030014653A1 (en) * | 2001-07-10 | 2003-01-16 | Peter Moller | Memory device with data security in a processor |
GB2503583A (en) * | 2012-06-27 | 2014-01-01 | Nordic Semiconductor Asa | Erasing memory protection-configuration region only if protected region is in an erased state |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4411538A1 (fr) * | 2023-02-03 | 2024-08-07 | STMicroelectronics International N.V. | Procede d'emulation de programmes de demarrage |
FR3145629A1 (fr) * | 2023-02-03 | 2024-08-09 | Stmicroelectronics International N.V. | Procédé d’émulation de programmes de démarrage |
Also Published As
Publication number | Publication date |
---|---|
GB201620684D0 (en) | 2017-01-18 |
WO2018104711A1 (en) | 2018-06-14 |
TW201821998A (zh) | 2018-06-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |