Opal: a single address space system for 64-bit architecture address space

Author

Chase, John ; Levy, Hanoch ; Baker-Harvey, Miche ; Lazowska, Ed

Author_Institution

Dept. of Comput. Sci. & Eng., Washington Univ., Seattle, WA, USA

fYear

1992

Firstpage

80

Lastpage

85

Abstract

The recent appearance of architectures with flat 64-bit virtual addressing opens an opportunity to reconsider the way in which operating systems use virtual address spaces. An operating system called Opal is being built for these wide-address architectures. The key feature of Opal is a single global virtual address space that extends to data on long-term storage and across the network. The case for the use of a single virtual address space is outlined, the model of addressing and protection used in Opal is presented, and some of the problems and opportunities raised by the approach are discussed

Keywords

operating systems (computers); virtual storage; 64 bit; 64-bit architecture address space; Opal; operating systems; single address space system; virtual addressing; wide-address architectures; Buildings; Computer architecture; Computer science; Hardware; Operating systems; Protection; Resource management; Space technology; Workstations; Yarn;

fLanguage

English

Publisher

ieee

Conference_Titel

Workstation Operating Systems, 1992. Proceedings., Third Workshop on

Conference_Location

Key Biscayne, FL

Print_ISBN

0-8186-2555-4

Type

conf

DOI

10.1109/WWOS.1992.275684

Filename

275684