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Linux Device Driver Emulation in Mach
Shantanu Goel and Dan Duchamp, Columbia University
We describe the design and performance of code added to the Mach microkernel (Mach 4.0, version UK02p21) that permits one to build a Mach kernel that includes unmodified Linux device drivers. We have written emulation code to support all Linux 1.3.35 network and SCSI drivers for the ISA and PCI I/O buses. Emulation increases latency, but very little. The degree depends on both device and operation, and varies from 2 microseconds for receiving small (60 byte) network packets up to 197 microseconds for writing 16KB to an ISA SCSI device.
BibTeX
@inproceedings {260489,
author = {Shantanu Goel and Dan Duchamp},
title = {Linux Device Driver Emulation in Mach},
booktitle = {USENIX 1996 Annual Technical Conference (USENIX ATC 96)},
year = {1996},
address = {San Diego, CA},
url = {https://www.usenix.org/conference/usenix-1996-annual-technical-conference/linux-device-driver-emulation-mach},
publisher = {USENIX Association},
month = jan
}
author = {Shantanu Goel and Dan Duchamp},
title = {Linux Device Driver Emulation in Mach},
booktitle = {USENIX 1996 Annual Technical Conference (USENIX ATC 96)},
year = {1996},
address = {San Diego, CA},
url = {https://www.usenix.org/conference/usenix-1996-annual-technical-conference/linux-device-driver-emulation-mach},
publisher = {USENIX Association},
month = jan
}