TW201447584A - 用於在執行硬體表搜尋〈ｈｗｔｗ〉時在某些條件下防止對暫存器的內容的未經授權式存取的方法和裝置 - Google Patents

用於在執行硬體表搜尋〈ｈｗｔｗ〉時在某些條件下防止對暫存器的內容的未經授權式存取的方法和裝置 Download PDF

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Publication number
TW201447584A
TW201447584A TW103107462A TW103107462A TW201447584A TW 201447584 A TW201447584 A TW 201447584A TW 103107462 A TW103107462 A TW 103107462A TW 103107462 A TW103107462 A TW 103107462A TW 201447584 A TW201447584 A TW 201447584A
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TW
Taiwan
Prior art keywords
logic
determination
register
decision
contents
Prior art date
Application number
TW103107462A
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English (en)
Chinese (zh)
Inventor
Thomas Zeng
Azzedine Touzni
Tzung Ren Tzeng
Phil J Bostley
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Qualcomm 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.)
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Publication date
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of TW201447584A publication Critical patent/TW201447584A/zh

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F12/145—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 virtual, e.g. for virtual blocks or segments before a translation mechanism
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/10—Address translation
    • G06F12/1027—Address translation using associative or pseudo-associative address translation means, e.g. translation look-aside buffer [TLB]
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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
    • G06F21/79—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 in semiconductor storage media, e.g. directly-addressable memories
    • 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
    • G06F9/44—Arrangements for executing specific programs
    • G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
    • G06F9/45504—Abstract machines for programme code execution, e.g. Java virtual machine [JVM], interpreters, emulators
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/10—Providing a specific technical effect
    • G06F2212/1032—Reliability improvement, data loss prevention, degraded operation etc
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/15—Use in a specific computing environment
    • G06F2212/151—Emulated environment, e.g. virtual machine
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/15—Use in a specific computing environment
    • G06F2212/152—Virtualized environment, e.g. logically partitioned system
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/65—Details of virtual memory and virtual address translation
    • G06F2212/654—Look-ahead translation
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2212/00—Indexing scheme relating to accessing, addressing or allocation within memory systems or architectures
    • G06F2212/68—Details of translation look-aside buffer [TLB]

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Security & Cryptography (AREA)
  • Software Systems (AREA)
  • Computer Hardware Design (AREA)
  • Storage Device Security (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
TW103107462A 2013-03-05 2014-03-05 用於在執行硬體表搜尋〈ｈｗｔｗ〉時在某些條件下防止對暫存器的內容的未經授權式存取的方法和裝置 TW201447584A (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13/785,979 US9330026B2 (en) 2013-03-05 2013-03-05 Method and apparatus for preventing unauthorized access to contents of a register under certain conditions when performing a hardware table walk (HWTW)

Publications (1)

Publication Number Publication Date
TW201447584A true TW201447584A (zh) 2014-12-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
TW103107462A TW201447584A (zh) 2013-03-05 2014-03-05 用於在執行硬體表搜尋〈ｈｗｔｗ〉時在某些條件下防止對暫存器的內容的未經授權式存取的方法和裝置

Country Status (7)

Country Link
US (2) US9330026B2 (enExample)
EP (1) EP2965211A1 (enExample)
JP (1) JP6301378B2 (enExample)
KR (1) KR20150129764A (enExample)
CN (1) CN105027097B (enExample)
TW (1) TW201447584A (enExample)
WO (1) WO2014138005A1 (enExample)

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Also Published As

Publication number Publication date
US20170083456A1 (en) 2017-03-23
JP2016513836A (ja) 2016-05-16
KR20150129764A (ko) 2015-11-20
CN105027097B (zh) 2018-01-16
EP2965211A1 (en) 2016-01-13
CN105027097A (zh) 2015-11-04
US20140258663A1 (en) 2014-09-11
JP6301378B2 (ja) 2018-03-28
WO2014138005A1 (en) 2014-09-12
US9330026B2 (en) 2016-05-03

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