TWI228889B - Mechanism for closing back door access mechanisms in personal computer systems - Google Patents

Mechanism for closing back door access mechanisms in personal computer systems Download PDF

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Publication number
TWI228889B
TWI228889B TW091108639A TW91108639A TWI228889B TW I228889 B TWI228889 B TW I228889B TW 091108639 A TW091108639 A TW 091108639A TW 91108639 A TW91108639 A TW 91108639A TW I228889 B TWI228889 B TW I228889B
Authority
TW
Taiwan
Prior art keywords
hdt
microcode
register
control logic
enable
Prior art date
Application number
TW091108639A
Other languages
English (en)
Chinese (zh)
Inventor
Geoffrey S Strongin
Original Assignee
Advanced Micro Devices Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US09/852,372 external-priority patent/US7065654B1/en
Application filed by Advanced Micro Devices Inc filed Critical Advanced Micro Devices Inc
Application granted granted Critical
Publication of TWI228889B publication Critical patent/TWI228889B/zh

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F9/22—Microcontrol or microprogram arrangements
    • G06F9/24—Loading of the microprogram

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)
  • Stored Programmes (AREA)
  • Executing Machine-Instructions (AREA)
  • Debugging And Monitoring (AREA)
TW091108639A 2001-05-10 2002-04-26 Mechanism for closing back door access mechanisms in personal computer systems TWI228889B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US85294201A 2001-05-10 2001-05-10
US09/852,372 US7065654B1 (en) 2001-05-10 2001-05-10 Secure execution box
US09/853,226 US20030028781A1 (en) 2001-05-10 2001-05-11 Mechanism for closing back door access mechanisms in personal computer systems

Publications (1)

Publication Number Publication Date
TWI228889B true TWI228889B (en) 2005-03-01

Family

ID=27420360

Family Applications (1)

Application Number Title Priority Date Filing Date
TW091108639A TWI228889B (en) 2001-05-10 2002-04-26 Mechanism for closing back door access mechanisms in personal computer systems

Country Status (9)

Country Link
US (1) US20030028781A1 (enExample)
EP (1) EP1410143B1 (enExample)
JP (1) JP2005501313A (enExample)
KR (1) KR20030094396A (enExample)
CN (1) CN1520537A (enExample)
AU (1) AU2002250591A1 (enExample)
DE (1) DE60206924T2 (enExample)
TW (1) TWI228889B (enExample)
WO (1) WO2002093336A2 (enExample)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030097587A1 (en) * 2001-11-01 2003-05-22 Gulick Dale E. Hardware interlock mechanism using a watchdog timer
US20040034872A1 (en) * 2002-08-16 2004-02-19 Peter Huyge Method for triggering an event in an electronic device, and corresponding device
US7334123B2 (en) * 2003-05-02 2008-02-19 Advanced Micro Devices, Inc. Computer system including a bus bridge for connection to a security services processor
JP4692826B2 (ja) * 2003-07-28 2011-06-01 ソニー株式会社 情報処理装置および方法、記録媒体、並びにプログラム
US7805614B2 (en) * 2004-04-26 2010-09-28 Northrop Grumman Corporation Secure local or remote biometric(s) identity and privilege (BIOTOKEN)
US7552341B2 (en) * 2004-09-01 2009-06-23 Microsoft Corporation Licensing the use of software on a particular CPU
JP4309361B2 (ja) * 2005-03-14 2009-08-05 パナソニック株式会社 電子機器制御システム及び制御信号送信装置
JP4207050B2 (ja) * 2005-06-27 2009-01-14 コニカミノルタビジネステクノロジーズ株式会社 画像形成装置
US7925815B1 (en) * 2006-06-29 2011-04-12 David Dunn Modifications to increase computer system security
US8661265B1 (en) 2006-06-29 2014-02-25 David Dunn Processor modifications to increase computer system security
US7610426B1 (en) * 2006-12-22 2009-10-27 Dunn David A System management mode code modifications to increase computer system security
US8316414B2 (en) * 2006-12-29 2012-11-20 Intel Corporation Reconfiguring a secure system
US20090109984A1 (en) * 2007-10-31 2009-04-30 Dell Products L.P. Wireless device with flash cache and boot from dock
US9286232B2 (en) * 2009-01-26 2016-03-15 International Business Machines Corporation Administering registered virtual addresses in a hybrid computing environment including maintaining a cache of ranges of currently registered virtual addresses
US20120117227A1 (en) * 2010-11-10 2012-05-10 Sony Corporation Method and apparatus for obtaining feedback from a device
US20120185688A1 (en) * 2011-01-13 2012-07-19 Google Inc. Processor mode locking
CN105788638A (zh) * 2011-03-04 2016-07-20 瑞萨电子株式会社 半导体器件
CN103984908B (zh) * 2014-05-05 2017-03-08 上海新储集成电路有限公司 一种南桥芯片及其应用方法
US10101928B2 (en) * 2016-02-19 2018-10-16 Dell Products L.P. System and method for enhanced security and update of SMM to prevent malware injection
US10534936B2 (en) * 2017-08-30 2020-01-14 Dell Products, Lp System and method for enabling and disabling of baseboard management controller configuration lockdown
US11354406B2 (en) 2018-06-28 2022-06-07 Intel Corporation Physics-based approach for attack detection and localization in closed-loop controls for autonomous vehicles
TWI682301B (zh) * 2018-11-19 2020-01-11 歐生全科技股份有限公司 多功能認證裝置與運作方法
NO346155B1 (en) * 2020-10-26 2022-03-28 Kongsberg Defence & Aerospace As Configuration authentication prior to enabling activation of a FPGA having volatile configuration-memory
US12292975B2 (en) * 2022-03-28 2025-05-06 Intel Corporation Method, system and apparatus to prevent denial of service attacks on PCIe based computing devices
US12164348B2 (en) * 2022-10-04 2024-12-10 Nxp Usa, Inc. Capturing of on-chip resets in an integrated circuit

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0855023A (ja) * 1994-07-25 1996-02-27 Motorola Inc データ処理システムおよびその方法
JP3461234B2 (ja) * 1996-01-22 2003-10-27 株式会社東芝 データ保護回路
US6026016A (en) * 1998-05-11 2000-02-15 Intel Corporation Methods and apparatus for hardware block locking in a nonvolatile memory
US6154819A (en) * 1998-05-11 2000-11-28 Intel Corporation Apparatus and method using volatile lock and lock-down registers and for protecting memory blocks

Also Published As

Publication number Publication date
DE60206924D1 (de) 2005-12-01
EP1410143A2 (en) 2004-04-21
KR20030094396A (ko) 2003-12-11
DE60206924T2 (de) 2006-07-27
EP1410143B1 (en) 2005-10-26
CN1520537A (zh) 2004-08-11
US20030028781A1 (en) 2003-02-06
JP2005501313A (ja) 2005-01-13
WO2002093336A2 (en) 2002-11-21
WO2002093336A3 (en) 2004-02-12
AU2002250591A1 (en) 2002-11-25

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