JPH01241649A - System for managing virtual space - Google Patents

System for managing virtual space

Info

Publication number
JPH01241649A
JPH01241649A JP63070612A JP7061288A JPH01241649A JP H01241649 A JPH01241649 A JP H01241649A JP 63070612 A JP63070612 A JP 63070612A JP 7061288 A JP7061288 A JP 7061288A JP H01241649 A JPH01241649 A JP H01241649A
Authority
JP
Japan
Prior art keywords
area
virtual space
program
driver
operating system
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.)
Pending
Application number
JP63070612A
Other languages
Japanese (ja)
Inventor
Shigeru Kawamata
川又 滋
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP63070612A priority Critical patent/JPH01241649A/en
Publication of JPH01241649A publication Critical patent/JPH01241649A/en
Pending legal-status Critical Current

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  • Memory System Of A Hierarchy Structure (AREA)

Abstract

PURPOSE:To widely reduce the starting time of an operating system OS by allocating a program allocated to the area of an application program AP with the control of the AP to the area of the OS, as well as executing this program with the OS. CONSTITUTION:In addition to the function of a shared library in each AP obtained by the conventional OS, the shared library to be used by the AP can be arranged in the virtual space of the OS. As one example for OS change, when a new IO driver (a program to control a peripheral device) is added to the OS, at first, the IO driver is prepared as the program (shared library) to be separated from the OS and the traveling AP is activated in a virtual space 5. The function of the conventional OS is used and the IO driver is read to an area 6 and arranged in the virtual space 5. After that, the area 6 is arranged in an area 9 in a virtual space 4 by using the function of the OS. Thus, the IO driver of the area 9 can be utilized from the OS and at such a time, re- constitution and re-raising is not needed. Then, the starting time of the OS can be widely shortened.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は仮想空間管理方式に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a virtual space management system.

〔従来の技術〕[Conventional technology]

情報処理システムにおいて、CPUが認識するアドレス
(仮想アドレス)を記憶装置中のアドレス(物理アドレ
ス)に変換するのにメモリ管理装置を用い、複数の仮想
空間上で複数のアプリケーションプログラム(、以下A
Pと記す)を走行させているオペレーティングシステム
(以下O8と記す)がある。
In an information processing system, a memory management device is used to convert an address (virtual address) recognized by a CPU into an address (physical address) in a storage device, and multiple application programs (hereinafter referred to as A) are used in multiple virtual spaces.
There is an operating system (hereinafter referred to as O8) running an operating system (hereinafter referred to as O8).

このようなO8においては、各仮想空間にAP領域とO
8領域を配置して、AP領域に同一の物理アドレスを割
り付け、プログラムの共有ができるようにしている。す
なわち、APのプログラムの一部を別のプログラム(以
後、共有ライブラリという)としておき、複数のAPが
これを共有して使えるようにしているのである。
In such an O8, each virtual space has an AP area and an O8.
Eight areas are arranged and the same physical address is assigned to the AP area so that programs can be shared. That is, a part of the AP's program is set up as a separate program (hereinafter referred to as a shared library) so that multiple APs can share and use this program.

この機能を第2図により説明する。This function will be explained with reference to FIG.

第2図において、1と3はCPUがある時点で認識でき
る仮想空間全体を表わしており、それぞれO8の仮想空
間4.AP5の仮想空間5と、O8の仮想空間?、AP
5の仮想空間8からなる。2は物理アドレス空間である
。仮想空間5と8では、別のAPが走行している。
In FIG. 2, numerals 1 and 3 represent the entire virtual space that the CPU can recognize at a certain point in time, and virtual spaces 4 and 3 of O8, respectively. AP5's virtual space 5 and O8's virtual space? , AP
It consists of 5 virtual spaces 8. 2 is a physical address space. Different APs are running in virtual spaces 5 and 8.

AP5が仮想空間5で走行を開始した時点で、共有ライ
ブラリはoSによって物理アドレス空間2における領域
9に読み込まれ仮想空間5における領域6に配置される
。また別のAP8が仮想空間8で走行を開始した時点で
、同様□にして共有ライブラリが仮想空間8における領
域6′に配置される。これにより異なったAPが物理ア
ドレス空間2上の同一プログラムを共有することができ
る。
When the AP 5 starts running in the virtual space 5, the shared library is read into area 9 in the physical address space 2 by the OS and placed in area 6 in the virtual space 5. When another AP 8 starts running in the virtual space 8, the shared library is similarly placed in the area 6' in the virtual space 8. This allows different APs to share the same program on the physical address space 2.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上述した従来の仮想空間管理方式においては。 In the conventional virtual space management method described above.

O8に変更があると、O8は変更の度に再構成、再立上
げの必要がある。一般にO8が安定してサービスをでき
るようになるまでは、O8の変更は頻繁に行われ、この
再構成、再立上げの時間が大きな問題となる。
When there is a change in O8, O8 needs to be reconfigured and restarted each time the change is made. Generally, until the O8 can provide stable services, the O8 is frequently changed, and the time required for reconfiguring and restarting becomes a major problem.

本発明の目的は上記欠点を解決し、従来のAPの共有方
式を拡張し簡単にかつ瞬時にO8を変更することを可能
とし、O8の開始時間を大幅に削減することにある。
An object of the present invention is to solve the above-mentioned drawbacks, expand the conventional AP sharing method, make it possible to change the O8 easily and instantaneously, and significantly reduce the time required to start the O8.

〔課題を解決するための手段〕[Means to solve the problem]

本発明の仮想空間管理方式は、複数の仮想空間を使い、
各仮想空間にアプリケーションプログラム領域とオペレ
ーティングシステム領域を配置して、複数のアプリケー
ションプログラム領域に同一の物理アドレスを割り付け
、プログラムの共有ができる手段を提供するオペレーテ
ィングシステムにおける仮想空間管理方式において。
The virtual space management method of the present invention uses multiple virtual spaces,
In a virtual space management method for an operating system that provides a means for arranging an application program area and an operating system area in each virtual space, allocating the same physical address to a plurality of application program areas, and sharing programs.

アプリケーションプログラムの制御によりアプリケーシ
ョンプログラムの領域に割り付けられたプログラムをオ
ペレーティングシステムの領域にも割り付け、このプロ
グラムをオペレーティングシステムが実行できるように
したことを特徴とする。
The present invention is characterized in that under the control of the application program, a program allocated to the application program area is also allocated to the operating system area, so that the operating system can execute this program.

〔実施例〕〔Example〕

次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

第1図は本発明の一実施例を示す概念図であり1本実施
例では、第2図により説明した従来のO8が持っていた
APどうしの共有ライブラリの機能に加えて、APが使
用している共有ライブラリをO8の仮想空間に配置でき
るようになっている。
FIG. 1 is a conceptual diagram showing an embodiment of the present invention. In this embodiment, in addition to the function of the shared library between APs that the conventional O8 had as explained in FIG. It is now possible to place shared libraries in the virtual space of O8.

いま、O8変更の一例としてO8に新しい■0ドライバ
(周辺装置を制御するプログラム)を追加する場合につ
いて説明する。まず、IOドライバをO8とは別のプロ
グラム(共有ライブラリ)として用意し、仮想空間5で
走行するAPを起動する。従来O8の機能を使い追加す
べきIOドライバを領域6に読み込み、仮想空間5に配
置する。その後、本発明の方式を採用したO8の機能を
使い、領域6をO8の仮想空間4中の領域9に配置する
Now, as an example of changing the O8, a case will be described in which a new ■0 driver (a program that controls peripheral devices) is added to the O8. First, an IO driver is prepared as a program (shared library) separate from O8, and an AP running in the virtual space 5 is started. The IO driver to be added is loaded into the area 6 using the conventional O8 function and placed in the virtual space 5. Thereafter, using the function of O8 that adopts the method of the present invention, area 6 is placed in area 9 in virtual space 4 of O8.

これによりO8から領域9のIOドライバを利用できる
ようになる。この際、再構成、再立ち上げの必要はない
。また、このIOドライバを変更する場合も、領域9の
配置を解除した後、同じ手順で再配置することができる
This allows the IO driver in area 9 to be used from O8. At this time, there is no need to reconfigure or restart. Also, when changing this IO driver, the arrangement of area 9 can be canceled and then rearranged using the same procedure.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明によれば、従来の共有ライ
ブラリを拡張することにより簡単に、O8とAPの間で
共有ライブラリが実現できる。
As described above, according to the present invention, a shared library can be easily realized between the O8 and the AP by extending the conventional shared library.

この方式を使うことによって、O8の機能の変更および
機能強化の際に、再構成、再立ち上げの必要がなく、従
来問題となっていた、この際の時間を大幅に短縮できる
By using this method, there is no need for reconfiguration or restarting when changing or enhancing the functions of O8, which can significantly reduce the time required to do so, which has been a problem in the past.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例を示す図、第2図は一般の仮
想空間配置例を示す図である。 1.3・・・仮想アドレス空間、2・・・物理アドレス
空間、4.7・・・O8の仮想空間、5.8・・・AP
の仮想空間、6.6’、10・・・領域。
FIG. 1 is a diagram showing an embodiment of the present invention, and FIG. 2 is a diagram showing an example of a general virtual space arrangement. 1.3...Virtual address space, 2...Physical address space, 4.7...O8 virtual space, 5.8...AP
virtual space, 6.6', 10...area.

Claims (1)

【特許請求の範囲】 複数の仮想空間を使い、各仮想空間にアプリケーション
プログラム領域とオペレーティングシステム領域を配置
して、複数のアプリケーションプログラム領域に同一の
物理アドレスを割り付け、プログラムの共有ができる手
段を提供するオペレーティングシステムにおける仮想空
間管理方式において、 アプリケーションプログラムの制御によりアプリケーシ
ョンプログラムの領域に割り付けられたプログラムをオ
ペレーティングシステムの領域にも割り付け、このプロ
グラムをオペレーティングシステムが実行できるように
したことを特徴とする仮想空間管理方式。
[Claims] Provides a means for sharing programs by using a plurality of virtual spaces, arranging an application program area and an operating system area in each virtual space, and allocating the same physical address to the plurality of application program areas. A virtual space management system for an operating system that is characterized in that under the control of the application program, a program allocated to the application program area is also allocated to the operating system area so that the operating system can execute this program. Space management method.
JP63070612A 1988-03-23 1988-03-23 System for managing virtual space Pending JPH01241649A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63070612A JPH01241649A (en) 1988-03-23 1988-03-23 System for managing virtual space

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63070612A JPH01241649A (en) 1988-03-23 1988-03-23 System for managing virtual space

Publications (1)

Publication Number Publication Date
JPH01241649A true JPH01241649A (en) 1989-09-26

Family

ID=13436592

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63070612A Pending JPH01241649A (en) 1988-03-23 1988-03-23 System for managing virtual space

Country Status (1)

Country Link
JP (1) JPH01241649A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010244303A (en) * 2009-04-06 2010-10-28 Kyocera Mita Corp Memory management device and image forming apparatus
US8473691B2 (en) 2009-02-27 2013-06-25 Ryosuke Ohgishi Memory management device, image forming apparatus, and image forming method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8473691B2 (en) 2009-02-27 2013-06-25 Ryosuke Ohgishi Memory management device, image forming apparatus, and image forming method
JP2010244303A (en) * 2009-04-06 2010-10-28 Kyocera Mita Corp Memory management device and image forming apparatus

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