48 lines
2.1 KiB
Text
48 lines
2.1 KiB
Text
xv6 is a re-implementation of Dennis Ritchie's and Ken Thompson's Unix
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Version 6 (v6). xv6 loosely follows the structure and style of v6,
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but is implemented for a modern RISC-V multiprocessor using ANSI C.
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ACKNOWLEDGMENTS
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xv6 is inspired by John Lions's Commentary on UNIX 6th Edition (Peer
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to Peer Communications; ISBN: 1-57398-013-7; 1st edition (June 14,
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2000)). See also https://pdos.csail.mit.edu/6.828/, which
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provides pointers to on-line resources for v6.
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xv6 borrows code from the following sources:
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JOS (asm.h, elf.h, mmu.h, bootasm.S, ide.c, console.c, and others)
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Plan 9 (entryother.S, mp.h, mp.c, lapic.c)
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FreeBSD (ioapic.c)
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NetBSD (console.c)
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The following people have made contributions: Russ Cox (context switching,
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locking), Cliff Frey (MP), Xiao Yu (MP), Nickolai Zeldovich, and Austin
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Clements.
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We are also grateful for the bug reports and patches contributed by Silas
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Boyd-Wickizer, Anton Burtsev, Cody Cutler, Mike CAT, Tej Chajed, eyalz800,
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Nelson Elhage, Saar Ettinger, Alice Ferrazzi, Nathaniel Filardo, Peter
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Froehlich, Yakir Goaron,Shivam Handa, Bryan Henry, Jim Huang, Alexander
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Kapshuk, Anders Kaseorg, kehao95, Wolfgang Keller, Eddie Kohler, Austin
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Liew, Imbar Marinescu, Yandong Mao, Matan Shabtay, Hitoshi Mitake, Carmi
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Merimovich, Mark Morrissey, mtasm, Joel Nider, Greg Price, Ayan Shafqat,
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Eldar Sehayek, Yongming Shen, Cam Tenny, tyfkda, Rafael Ubal, Warren
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Toomey, Stephen Tu, Pablo Ventura, Xi Wang, Keiichi Watanabe, Nicolas
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Wolovick, wxdao, Grant Wu, Jindong Zhang, Icenowy Zheng, and Zou Chang Wei.
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The code in the files that constitute xv6 is
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Copyright 2006-2019 Frans Kaashoek, Robert Morris, and Russ Cox.
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ERROR REPORTS
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Please send errors and suggestions to Frans Kaashoek and Robert Morris
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(kaashoek,rtm@mit.edu). The main purpose of xv6 is as a teaching
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operating system for MIT's 6.828, so we are more interested in
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simplifications and clarifications than new features.
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BUILDING AND RUNNING XV6
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You will need a RISC-V "newlib" tool chain from
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https://github.com/riscv/riscv-gnu-toolchain, and qemu compiled for
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riscv64-softmmu. Once they are installed, and in your shell
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search path, you can run "make qemu".
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