An I/O System for Mach 3.0 (1991)
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| Venue: | Proc. USENIX Mach Symposium |
| Citations: | 33 - 4 self |
BibTeX
@INPROCEEDINGS{Forin91ani/o,
author = {Alessandro Forin and David Golub and Brian Bershad},
title = {An I/O System for Mach 3.0},
booktitle = {Proc. USENIX Mach Symposium},
year = {1991},
pages = {163--176}
}
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Abstract
The Mach 3.0 I/O system represents a radical departure from its predecessor -- Mach 2.5, which relied on the BSD Unix model of device management. The I/O interface in Mach 3.0 supports device drivers that are largely device-independent, implemented at user-level, and locationindependent. Our approach to device management significantly reduces the size of the kernel's machine-dependent code, enables us to reduce the length of the I/O path, and permits us to transparently manage remote devices on non-shared memory multiprocessor architectures such as the Hypercube. This paper describes the structure and performance of Mach's I/O system. 1. Introduction This paper describes the design of the I/O system for the Mach 3.0 kernel [Rashid et al. 89]. Mach's I/O system is novel in several respects. First, it supports the notion of "device independent" device drivers. The I/O system separates out generic driver code common to a class of devices such as a screen, an Ethernet controller, or a disk...
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