GB1431423A - Virtual computer systems - Google Patents

Virtual computer systems

Info

Publication number
GB1431423A
GB1431423A GB2393974A GB2393974A GB1431423A GB 1431423 A GB1431423 A GB 1431423A GB 2393974 A GB2393974 A GB 2393974A GB 2393974 A GB2393974 A GB 2393974A GB 1431423 A GB1431423 A GB 1431423A
Authority
GB
United Kingdom
Prior art keywords
resource
names
map
virtual
real
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.)
Expired
Application number
GB2393974A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bull HN Information Systems Italia SpA
Bull HN Information Systems Inc
Original Assignee
Honeywell Information Systems Italia SpA
Honeywell Information Systems 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
Application filed by Honeywell Information Systems Italia SpA, Honeywell Information Systems Inc filed Critical Honeywell Information Systems Italia SpA
Publication of GB1431423A publication Critical patent/GB1431423A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G06F9/455—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; 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
    • G06F9/46—Multiprogramming arrangements
    • G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
    • G06F9/5061—Partitioning or combining of resources
    • G06F9/5077—Logical partitioning of resources; Management or configuration of virtualized resources
    • 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
    • G06F9/455—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
    • G06F2009/45566—Nested virtual machines

Landscapes

  • Engineering & Computer Science (AREA)
  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Memory System Of A Hierarchy Structure (AREA)
  • Memory System (AREA)
  • Debugging And Monitoring (AREA)

Abstract

1431423 Virtual computer systems HONEYWELL INFORMATION SYSTEMS Inc 30 May 1974 [31 May 1973] 23939/74 Heading G4A A hardware virtualizer for running processes on a virtual computer machine running on a general purpose computer and having a virtual machine monitor comprises a # map for mapping process names into resource names, an f map for mapping virtual resource names into real resource names and a map composer for combining the # map and the f map to produce a general composed map. The processes are defined by a set of process names P=p 0 ... p j , the virtual resources being defined as a set V=v 0 ... vm and the real resources as a set R=r 0 ... r n , the sets V and R containing the addresses of all memories, addressable registers and input/output devices. The process map associates the process names with the real resource names during process execution wherein an element x of the set of process names P is associated with an element y of the set of resources such that #(x)=y if y is the real resource name that corresponds to the virtual resource name x but #(x) = e if x does not have a corresponding real resource assigned to it at a particular instance in time. The resource map f has recursive levels of f maps for associating virtual resource names with real resource names such that an element y of the set of virtual resources V is associated with an element z of the set of real resources R such that f(y) = z if z is the real resource that corresponds to the virtual resource y but f(y) = t if y does not have a corresponding real resource assigned to it at a particular instance in time.
GB2393974A 1973-05-31 1974-05-30 Virtual computer systems Expired GB1431423A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US36579573A 1973-05-31 1973-05-31

Publications (1)

Publication Number Publication Date
GB1431423A true GB1431423A (en) 1976-04-07

Family

ID=23440398

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2393974A Expired GB1431423A (en) 1973-05-31 1974-05-30 Virtual computer systems

Country Status (7)

Country Link
JP (1) JPS5820066B2 (en)
CA (1) CA1015063A (en)
DE (1) DE2426435C2 (en)
FR (1) FR2232010B1 (en)
GB (1) GB1431423A (en)
IT (1) IT1013315B (en)
NL (1) NL7407274A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980001850A1 (en) * 1979-02-21 1980-09-04 Fujitsu Ltd Virtual machine system
WO2007009940A1 (en) * 2005-07-15 2007-01-25 International Business Machines Corporation Facilitating processing within computing environments supporting pageable guests
GB2563884A (en) * 2017-06-28 2019-01-02 Advanced Risc Mach Ltd Exception return instruction
GB2563889A (en) * 2017-06-28 2019-01-02 Advanced Risc Mach Ltd Realm identifiers for realms for memory access control

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6019536B2 (en) * 1978-02-23 1985-05-16 株式会社東芝 information processing equipment
JPS601661B2 (en) * 1978-02-23 1985-01-16 株式会社東芝 information processing equipment
JPS5576447A (en) * 1978-12-01 1980-06-09 Fujitsu Ltd Address control system for software simulation
JPS56153456A (en) * 1980-04-28 1981-11-27 Mitsubishi Electric Corp Testing method for program
JPS5856058A (en) * 1981-09-29 1983-04-02 Fujitsu Ltd Daso common-use control system for virtual computer system cp resident volume
US4975836A (en) * 1984-12-19 1990-12-04 Hitachi, Ltd. Virtual computer system
US4764864A (en) * 1985-04-04 1988-08-16 Nec Corporation Circuit arrangement capable of improving overhead of a control program on interrupting into a virtual machine
JPH0428095Y2 (en) * 1986-11-25 1992-07-07
US8898666B2 (en) 2010-12-21 2014-11-25 Panasonic Intellectual Property Corporation Of America Virtual machine system and virtual machine system control method for controlling program execution on a plurality of processors that have a plurality of privileged modes
JP5981984B2 (en) 2012-02-22 2016-08-31 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ Virtual computer system, confidential information protection method, and confidential information protection program

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980001850A1 (en) * 1979-02-21 1980-09-04 Fujitsu Ltd Virtual machine system
EP0024434A1 (en) * 1979-02-21 1981-03-11 Fujitsu Limited Virtual machine system
EP0024434A4 (en) * 1979-02-21 1981-06-30 Fujitsu Ltd Virtual machine system.
US9183027B2 (en) 2005-07-15 2015-11-10 International Business Machines Corporation Facilitating processing within computing environments supporting pageable guests
US8387049B2 (en) 2005-07-15 2013-02-26 International Business Machines Corporation Facilitating processing within computing environments supporting pageable guests
US8752053B2 (en) 2005-07-15 2014-06-10 International Business Machines Corporation Facilitating processing within computing environments supporting pageable guests
WO2007009940A1 (en) * 2005-07-15 2007-01-25 International Business Machines Corporation Facilitating processing within computing environments supporting pageable guests
US10133515B2 (en) 2005-07-15 2018-11-20 International Business Machines Corporation Facilitating processing within computing environments supporting pageable guests
US10684800B2 (en) 2005-07-15 2020-06-16 International Business Machines Corporation Facilitating processing within computing environments supporting pageable guests
GB2563884A (en) * 2017-06-28 2019-01-02 Advanced Risc Mach Ltd Exception return instruction
GB2563889A (en) * 2017-06-28 2019-01-02 Advanced Risc Mach Ltd Realm identifiers for realms for memory access control
GB2563889B (en) * 2017-06-28 2019-10-09 Advanced Risc Mach Ltd Realm identifiers for realms for memory access control
GB2563884B (en) * 2017-06-28 2020-01-08 Advanced Risc Mach Ltd Exception return instruction
US11176061B2 (en) 2017-06-28 2021-11-16 Arm Limited Realm identifiers for realms for memory access control
US11294676B2 (en) 2017-06-28 2022-04-05 Arm Limited Exception return instruction variants for realm-based switching

Also Published As

Publication number Publication date
JPS5820066B2 (en) 1983-04-21
CA1015063A (en) 1977-08-02
JPS5023146A (en) 1975-03-12
FR2232010A1 (en) 1974-12-27
DE2426435C2 (en) 1986-06-05
NL7407274A (en) 1974-12-03
FR2232010B1 (en) 1978-05-05
DE2426435A1 (en) 1974-12-19
AU6894074A (en) 1975-11-20
IT1013315B (en) 1977-03-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee