IL312735A - Two-stage address translation - Google Patents

Two-stage address translation

Info

Publication number
IL312735A
IL312735A IL312735A IL31273524A IL312735A IL 312735 A IL312735 A IL 312735A IL 312735 A IL312735 A IL 312735A IL 31273524 A IL31273524 A IL 31273524A IL 312735 A IL312735 A IL 312735A
Authority
IL
Israel
Prior art keywords
address translation
step address
translation
address
Prior art date
Application number
IL312735A
Other languages
English (en)
Hebrew (he)
Inventor
Richard Roy Grisenthwaite
Original Assignee
Advanced Risc Mach Ltd
Richard Roy Grisenthwaite
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
Application filed by Advanced Risc Mach Ltd, Richard Roy Grisenthwaite filed Critical Advanced Risc Mach Ltd
Publication of IL312735A publication Critical patent/IL312735A/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/08—Addressing or allocation; Relocation in hierarchically structured memory systems, e.g. virtual memory systems
    • G06F12/10—Address translation
    • G06F12/1009—Address translation using page tables, e.g. page table structures
    • 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
    • G06F12/109—Address translation for multiple virtual address spaces, e.g. segmentation
    • 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]
    • G06F12/1036—Address translation using associative or pseudo-associative address translation means, e.g. translation look-aside buffer [TLB] for multiple virtual address spaces, e.g. segmentation
    • 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
    • G06F12/1425—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 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
    • G06F12/14—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 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
    • G06F12/1466—Key-lock mechanism
    • G06F12/1475—Key-lock mechanism in a virtual system, e.g. with translation means
    • 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
    • G06F12/1483—Protection against unauthorised use of memory or access to memory by checking the subject access rights using an access-table, e.g. matrix or list
    • 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
    • G06F21/50—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems
    • G06F21/52—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems during program execution, e.g. stack integrity ; Preventing unwanted data erasure; Buffer overflow
    • G06F21/53—Monitoring users, programs or devices to maintain the integrity of platforms, e.g. of processors, firmware or operating systems during program execution, e.g. stack integrity ; Preventing unwanted data erasure; Buffer overflow by executing in a restricted environment, e.g. sandbox or secure virtual machine
    • 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
    • G06F21/71—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 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
    • G06F9/45533—Hypervisors; Virtual machine monitors
    • G06F9/45558—Hypervisor-specific management and integration aspects
    • 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
    • G06F9/45533—Hypervisors; Virtual machine monitors
    • G06F9/45558—Hypervisor-specific management and integration aspects
    • G06F2009/45583—Memory management, e.g. access or allocation
    • 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
    • G06F2212/1016—Performance improvement
    • 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
    • G06F2212/1052—Security improvement
    • 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
    • G06F2212/65—Details of virtual memory and virtual address translation
    • G06F2212/651—Multi-level translation tables
    • 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
    • G06F2212/657—Virtual address space management

Landscapes

  • 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)
  • Mathematical Physics (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Storage Device Security (AREA)
IL312735A 2021-11-30 2022-04-28 Two-stage address translation IL312735A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2117274.7A GB2613350B (en) 2021-11-30 2021-11-30 Two-stage address translation
PCT/GB2022/051073 WO2023099860A1 (en) 2021-11-30 2022-04-28 Two-stage address translation

Publications (1)

Publication Number Publication Date
IL312735A true IL312735A (en) 2024-07-01

Family

ID=79270214

Family Applications (1)

Application Number Title Priority Date Filing Date
IL312735A IL312735A (en) 2021-11-30 2022-04-28 Two-stage address translation

Country Status (8)

Country Link
US (1) US12461861B2 (https=)
EP (1) EP4441617B1 (https=)
JP (1) JP2024545406A (https=)
KR (1) KR20240109286A (https=)
CN (1) CN118339542A (https=)
GB (1) GB2613350B (https=)
IL (1) IL312735A (https=)
WO (1) WO2023099860A1 (https=)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2625550A (en) * 2022-12-20 2024-06-26 Advanced Risc Mach Ltd Apparatus, method and computer program, for performing translation table entry load/store operation
GB2637714A (en) * 2024-01-31 2025-08-06 Advanced Risc Mach Ltd Attribute information
GB2637715B (en) * 2024-01-31 2026-04-01 Advanced Risc Mach Ltd Attribute information
CN118227521B (zh) * 2024-05-23 2024-07-30 摩尔线程智能科技(北京)有限责任公司 一种页表生成方法、验证方法及装置
KR20260024865A (ko) 2024-08-14 2026-02-23 주식회사 엘지에너지솔루션 전지셀 온도 측정 장치 및 이를 이용한 전지셀 온도 측정 방법
CN119127546B (zh) * 2024-08-26 2025-06-20 北京微核芯科技有限公司 处理器页表修改引起缺页异常的验证方法及装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7814287B2 (en) * 2005-07-15 2010-10-12 Xensource, Inc. Using writeable page tables for memory address translation in a hypervisor environment
WO2009001153A1 (en) * 2007-06-28 2008-12-31 Nokia Corporation Memory protection unit in a virtual processing environment
GB2514107B (en) * 2013-05-13 2020-07-29 Advanced Risc Mach Ltd Page table data management
JP6162652B2 (ja) * 2014-06-20 2017-07-12 株式会社東芝 メモリ管理装置、プログラム、及び方法
GB2543306B (en) * 2015-10-14 2019-05-01 Advanced Risc Mach Ltd Exception handling
US10019583B2 (en) * 2016-04-01 2018-07-10 Samsung Electronics Co., Ltd. Method and apparatus for performing protected walk-based shadow paging using multiple stages of page tables
US11526584B2 (en) * 2019-10-14 2022-12-13 International Business Machines Corporation Apparatus, systems, and methods for assigning access permission to social media

Also Published As

Publication number Publication date
EP4441617B1 (en) 2025-08-06
WO2023099860A1 (en) 2023-06-08
JP2024545406A (ja) 2024-12-06
EP4441617A1 (en) 2024-10-09
US20250021487A1 (en) 2025-01-16
GB2613350A (en) 2023-06-07
KR20240109286A (ko) 2024-07-10
CN118339542A (zh) 2024-07-12
GB2613350B (en) 2024-02-07
US12461861B2 (en) 2025-11-04
EP4441617C0 (en) 2025-08-06
GB202117274D0 (en) 2022-01-12

Similar Documents

Publication Publication Date Title
IL312735A (en) Two-stage address translation
EP4227390A4 (en) COMPOSITION CONTAINING A REFRIGERANT FLUID
EP4148096A4 (en) COMPOSITION
GB2565069B (en) Address translation cache
EP4094582A4 (en) COMPOSITION
EP4328279A4 (en) COMPOSITION
EP4115893A4 (en) Anti-tumor composition
EP4279545A4 (en) COMPOSITION
EP4268078A4 (en) ADDRESS MAPPING-AWARE TASK ASSIGNMENT MECHANISM
EP4352194C0 (en) COMPOSITION OF TABLET
IL312125A (en) Rxfp1 agonists
EP4313320A4 (en) ANTIPERSPIRANT COMPOSITION
IL311392A (en) Address translation circuitry and methods for performing address translation
EP4372077A4 (en) AUTOPHAGY-ACTIVATING COMPOSITION
EP4337752C0 (en) COMPOSITION
EP4330366C0 (en) COMPOSITION
EP4289123C0 (de) Containervermittelte anwendungskonfiguration
EP4256012C0 (en) COMPOSITION
JP1780872S (ja) 翻訳ペン
EP4291042C0 (en) COMPOSITION DERIVED FROM OATS
EP4201044A4 (en) HIGH AVAILABILITY NETWORK ADDRESS TRANSLATION
EP4454715A4 (en) COMPOSITION
EP4403170A4 (en) COMPOSITION CONTAINING CARYOPHYLLENE
EP4393305A4 (en) COMPOSITION
EP4337751C0 (en) COMPOSITION