JPS576952A - Storage protecting system - Google Patents

Storage protecting system

Info

Publication number
JPS576952A
JPS576952A JP8115780A JP8115780A JPS576952A JP S576952 A JPS576952 A JP S576952A JP 8115780 A JP8115780 A JP 8115780A JP 8115780 A JP8115780 A JP 8115780A JP S576952 A JPS576952 A JP S576952A
Authority
JP
Japan
Prior art keywords
address
key
component
access
instruction
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.)
Granted
Application number
JP8115780A
Other languages
Japanese (ja)
Other versions
JPH0133857B2 (en
Inventor
Kimiaki Uchiyama
Masahiro Kurata
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP8115780A priority Critical patent/JPS576952A/en
Publication of JPS576952A publication Critical patent/JPS576952A/en
Publication of JPH0133857B2 publication Critical patent/JPH0133857B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Storage Device Security (AREA)

Abstract

PURPOSE:To ensure a strict limitation for the program range in which an access is allowed to the information and at the same time simplify the process during an access mode, by forming the base address with the location component and an access key. CONSTITUTION:The base address is formed with a location component 2 and an access key 3, and a protective key 15 allotted to the storage region based on an address component 8 of an effective address 9. Then the key 15 is compared with a key component 21 shown in the address 9 to carry out a checking. For instance, a sum is obtained among the contents of a base register 4 designated by an instruction 7, the contents (deviation) of an index register 6 designated by the instruction 7 and a deviation 5 held in the instruction 7 in order to produce the address 9 of a subject of access. Then a control table XPT is prepared from the component 8 of the address 9 in reference to a segment table 13 and a page table 14, and the key 15 in the table XPT is compared with the component 21 to carry out a protection.
JP8115780A 1980-06-16 1980-06-16 Storage protecting system Granted JPS576952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8115780A JPS576952A (en) 1980-06-16 1980-06-16 Storage protecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8115780A JPS576952A (en) 1980-06-16 1980-06-16 Storage protecting system

Publications (2)

Publication Number Publication Date
JPS576952A true JPS576952A (en) 1982-01-13
JPH0133857B2 JPH0133857B2 (en) 1989-07-17

Family

ID=13738600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8115780A Granted JPS576952A (en) 1980-06-16 1980-06-16 Storage protecting system

Country Status (1)

Country Link
JP (1) JPS576952A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5724551A (en) * 1996-05-23 1998-03-03 International Business Machines Corporation Method for managing I/O buffers in shared storage by structuring buffer table having entries include storage keys for controlling accesses to the buffers
US5787309A (en) * 1996-05-23 1998-07-28 International Business Machines Corporation Apparatus for protecting storage blocks from being accessed by unwanted I/O programs using I/O program keys and I/O storage keys having M number of bits
US5802397A (en) * 1996-05-23 1998-09-01 International Business Machines Corporation System for storage protection from unintended I/O access using I/O protection key by providing no control by I/O key entries over access by CP entity
US5809546A (en) * 1996-05-23 1998-09-15 International Business Machines Corporation Method for managing I/O buffers in shared storage by structuring buffer table having entries including storage keys for controlling accesses to the buffers
US5900019A (en) * 1996-05-23 1999-05-04 International Business Machines Corporation Apparatus for protecting memory storage blocks from I/O accesses
US6809734B2 (en) 2001-03-22 2004-10-26 Sony Computer Entertainment Inc. Resource dedication system and method for a computer architecture for broadband networks
US6826662B2 (en) 2001-03-22 2004-11-30 Sony Computer Entertainment Inc. System and method for data synchronization for a computer architecture for broadband networks
US7093104B2 (en) 2001-03-22 2006-08-15 Sony Computer Entertainment Inc. Processing modules for computer architecture for broadband networks
US7139882B2 (en) 2001-03-22 2006-11-21 Sony Computer Entertainment Inc. Memory protection system and method for computer architecture for broadband networks
US7231500B2 (en) 2001-03-22 2007-06-12 Sony Computer Entertainment Inc. External data interface in a computer architecture for broadband networks
US7233998B2 (en) 2001-03-22 2007-06-19 Sony Computer Entertainment Inc. Computer architecture and software cells for broadband networks
US9442836B2 (en) 2013-09-20 2016-09-13 Fujitsu Limited Arithmetic processing device, information processing device, control method for information processing device, and control program for information processing device

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5724551A (en) * 1996-05-23 1998-03-03 International Business Machines Corporation Method for managing I/O buffers in shared storage by structuring buffer table having entries include storage keys for controlling accesses to the buffers
US5787309A (en) * 1996-05-23 1998-07-28 International Business Machines Corporation Apparatus for protecting storage blocks from being accessed by unwanted I/O programs using I/O program keys and I/O storage keys having M number of bits
US5802397A (en) * 1996-05-23 1998-09-01 International Business Machines Corporation System for storage protection from unintended I/O access using I/O protection key by providing no control by I/O key entries over access by CP entity
US5809546A (en) * 1996-05-23 1998-09-15 International Business Machines Corporation Method for managing I/O buffers in shared storage by structuring buffer table having entries including storage keys for controlling accesses to the buffers
US5900019A (en) * 1996-05-23 1999-05-04 International Business Machines Corporation Apparatus for protecting memory storage blocks from I/O accesses
US6809734B2 (en) 2001-03-22 2004-10-26 Sony Computer Entertainment Inc. Resource dedication system and method for a computer architecture for broadband networks
US6826662B2 (en) 2001-03-22 2004-11-30 Sony Computer Entertainment Inc. System and method for data synchronization for a computer architecture for broadband networks
US7093104B2 (en) 2001-03-22 2006-08-15 Sony Computer Entertainment Inc. Processing modules for computer architecture for broadband networks
US7139882B2 (en) 2001-03-22 2006-11-21 Sony Computer Entertainment Inc. Memory protection system and method for computer architecture for broadband networks
US7231500B2 (en) 2001-03-22 2007-06-12 Sony Computer Entertainment Inc. External data interface in a computer architecture for broadband networks
US7233998B2 (en) 2001-03-22 2007-06-19 Sony Computer Entertainment Inc. Computer architecture and software cells for broadband networks
US7457939B2 (en) 2001-03-22 2008-11-25 Sony Computer Entertainment Inc. Processing system with dedicated local memories and busy identification
US7720982B2 (en) 2001-03-22 2010-05-18 Sony Computer Entertainment Inc. Computer architecture and software cells for broadband networks
US9442836B2 (en) 2013-09-20 2016-09-13 Fujitsu Limited Arithmetic processing device, information processing device, control method for information processing device, and control program for information processing device

Also Published As

Publication number Publication date
JPH0133857B2 (en) 1989-07-17

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