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 (https=)
EP (1) EP1410143B1 (https=)
JP (1) JP2005501313A (https=)
KR (1) KR20030094396A (https=)
CN (1) CN1520537A (https=)
AU (1) AU2002250591A1 (https=)
DE (1) DE60206924T2 (https=)
TW (1) TWI228889B (https=)
WO (1) WO2002093336A2 (https=)

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
BRPI0406198A (pt) * 2003-07-28 2005-08-09 Sony Corp Aparelho e método de processamento de informação, meio de gravação gravando um programa legìvel por um computador, e, programa para fazer um computador executar um processo
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

Family Cites Families (4)

* 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
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
US6026016A (en) * 1998-05-11 2000-02-15 Intel Corporation Methods and apparatus for hardware block locking in a nonvolatile memory

Also Published As

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

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