编辑“︁Xv6”︁

{{NoteTA
|G1=IT
|1=zh-tw:實作;zh-cn:实现
|2=zh-tw:單體式核心;zh-cn:宏内核
|3=zh=tw:授權條款;zh-cn:许可证
}}
{{roughtranslation}}
{{Lowercase title}}
{{Infobox OS
| name                   = xv6
| logo                   =
| screenshot             = Xv6 LS Command Output.png
| caption                = xv6 啟動，並使用 <samp>[[ls]]</samp> 命令
| developer              = [[麻省理工学院|MIT]]
| family                 = [[类Unix系统]]
| released               =
| language               = [[英语]]
| ui                     = [[命令行界面]]
| license                = [[MIT许可证]]
| website                = {{URL|pdos.csail.mit.edu/6.828/xv6}}
| source_model           = [[开源]]
| kernel_type            = [[宏内核]]
| supported_platforms    = [[多处理器]][[x86]][[RISC-V]]
| latest release = {{multiple releases
  | branch1  = x86 ([[End-of-life (product)|EOL]]):
  | version1 = rev11
  | date1    = {{Start date and age|2018|09|02}}

  | branch2  = RISC-V:
  | version2 = rev3
  | date2    = {{Start date and age|2022|09|05}}
}}
| marketing_target       =
| programmed_in          = [[C语言]]和[[汇编语言]]
| prog_language          =
| updatemodel            =
| package_manager        =
| working_state          =
}}


{{Portal|Free software}}
'''xv6'''是以[[ANSI C]]重新編寫的[[Version 6 Unix|Unix第六版]]現代實作版本，適用於[[多处理器]][[x86]]或[[RISC-V]]系統。xv6是[[麻省理工学院]]於 2006 年為了教學用途開發的系統，在該校的作業系統工程（6.828）課程中使用。
== 目的 ==
[[麻省理工学院]] 原先在作業系統課程中使用 [[Version 6 Unix|V6]]，但由于[[PDP-11]]机器已不再普及，且該系統使用過時的 pre-ANSI C 開發，學校決定創造 xv6 作為替代方案。
相較於 [[Linux]] 或 [[BSD]]，xv6 非常简单，適合在一學期的課程中教授，但仍然包含 [[Unix]] 的重要概念和组织<ref name="6.828">{{Cite web|url=https://pdos.csail.mit.edu/6.828/xv6|title=Xv6, a simple Unix-like teaching operating system|accessdate=2014-09-22|archive-date=2015-08-23|archive-url=https://web.archive.org/web/20150823023719/http://pdos.csail.mit.edu/6.828/xv6/}}</ref>。

== 內建-{zh-tw:文件;zh-cn:文档}- ==
xv6 [[Makefile]]的一个特性是能够以可读的格式生成整个源代码清单的[[PDF]]文档。整个打印输出只有99页，包括交叉引用<ref>{{Cite web|url=https://pdos.csail.mit.edu/6.828/2018/xv6/xv6-rev11.pdf|title=xv6 source listing|accessdate=2018-01-10|format=pdf|archive-date=2021-12-09|archive-url=https://web.archive.org/web/20211209205722/https://pdos.csail.mit.edu/6.828/2018/xv6/xv6-rev11.pdf}}</ref>。这让人想起原始的V6源代码，该代码在《Lions' Commentary on UNIX 6th Edition, with Source Code》一书中以类似的形式发布。

== 教学使用 ==
xv6已被用于许多著名大学的操作系统课程，包括：
{{Div col|cols=2}}
美国的[[西北大学 (伊利诺伊州)]]<ref>{{cite web| url = http://www.aqualab.cs.northwestern.edu/class/333-eecs343-xv6| title = EECS 343: Operating System, Fall 2016-17| accessdate = 2018-11-11| archive-url = https://web.archive.org/web/20181024043126/http://www.aqualab.cs.northwestern.edu/class/333-eecs343-xv6| archive-date = 2018-10-24| dead-url = yes}}</ref>，[[喬治·華盛頓大學]]<ref>{{cite web| url = https://www2.seas.gwu.edu/~gparmer/classes/2018-08-01-Operating-Systems.html| title = CSCI 3411 - Operating Systems, Fall 2018| accessdate = 2018-09-27| archive-date = 2021-12-17| archive-url = https://web.archive.org/web/20211217050422/https://www2.seas.gwu.edu/%7Egparmer/classes/2018-08-01-Operating-Systems.html}}</ref>，[[东北大学 (美国)|东北大学]]<ref>{{cite web| url = http://www.ccs.neu.edu/course/cs3650/| title = CS 3650: Computer Systems, Fall 2014| accessdate = 2014-12-09| archive-date = 2016-12-16| archive-url = https://web.archive.org/web/20161216172056/http://www.ccs.neu.edu/course/cs3650/}}</ref>， [[耶鲁大学]]<ref>{{cite web| url = http://zoo.cs.yale.edu/classes/cs422/2010/info| title = CS422/522: Operating Systems, Spring 2010 — Overview| accessdate = 2010-02-05| archive-url = https://www.webcitation.org/69YIvRRQK?url=http://zoo.cs.yale.edu/classes/cs422/2010/info| archive-date = 2012-07-30| dead-url = yes}}</ref>，[[哥伦比亚大学]]<ref>{{cite web| url = http://www.cs.columbia.edu/~junfeng/13fa-w4118/index.html| title = COMS W4118: Operating Systems I, Fall 2013| accessdate = 2013-09-09| archive-date = 2021-09-21| archive-url = https://web.archive.org/web/20210921141555/http://www.cs.columbia.edu/~junfeng/13fa-w4118/index.html}}</ref>， [[约翰·霍普金斯大学]]<ref>{{cite web| url = http://gaming.jhu.edu/~phf/2015/fall/cs318/| title = 600.318/418: Operating Systems| accessdate = 2015-11-07| archive-url = https://web.archive.org/web/20151104145926/http://gaming.jhu.edu/~phf/2015/fall/cs318/| archive-date = 2015-11-04| dead-url = yes}}</ref>， [[波特蘭州立大學]]<ref>{{cite web| url = https://www.pdx.edu/computer-science/cs333| title = CS 333 Introduction to Operating Systems| accessdate = 2018-04-10| archive-date = 2018-10-25| archive-url = https://web.archive.org/web/20181025214315/https://www.pdx.edu/computer-science/cs333}}</ref>，南方耶稣复临大学<ref>{{cite web| url = http://www.southern.edu/academics/academic-sites/computing/| title = School of Computing at Southern Adventist University| accessdate = 2017-12-10| archive-date = 2018-10-20| archive-url = https://web.archive.org/web/20181020050115/http://www.southern.edu/academics/academic-sites/computing/}}</ref>，[[威斯康星大学麦迪逊分校]]<ref>{{cite web| url = http://pages.cs.wisc.edu/~remzi/Classes/537/Fall2011/| title = CS-537: Introduction to Operating Systems| accessdate = 2011-11-04| archive-date = 2021-11-14| archive-url = https://web.archive.org/web/20211114100445/https://pages.cs.wisc.edu/~remzi/Classes/537/Fall2011/}}</ref>， [[宾汉顿大学]]，[[犹他大学]]<ref>{{cite web| url = https://utah.instructure.com/courses/272234| title = CS 6460: Operating Systems| accessdate = 2014-01-20| archive-date = 2021-09-21| archive-url = https://web.archive.org/web/20210921070111/https://utah.instructure.com/courses/272234}}</ref><ref>{{cite web| url = http://blog.regehr.org/archives/1114| title = Embedded in Academia : Xv6| accessdate = 2014-04-08| archive-date = 2014-04-13| archive-url = https://web.archive.org/web/20140413155442/http://blog.regehr.org/archives/1114| dead-url = no}}</ref>，  [[加州大學爾灣分校|加利福尼亚州大学欧文分校]]<ref>{{Citation|title=University of California, Irvine|date=2018-11-10|url=https://en.wikipedia.org/w/index.php?title=University_of_California,_Irvine&oldid=868140615|work=Wikipedia|language=en|access-date=2018-11-14}}</ref>， [[加利福尼亞大學河濱分校]]<ref>{{cite web| url = http://www.cs.ucr.edu/~heng/teaching/cs202-fall17/| title = CS 202: Advanced Operating System| accessdate = 2017-12-02}}</ref>，[[伊利诺伊大学芝加哥分校]]<ref>{{cite web| url = http://www.cs.uic.edu/CS385| title = CS385 - Operating Systems Concepts and Design| accessdate = 2015-03-18| archive-date = 2021-09-21| archive-url = https://web.archive.org/web/20210921113544/https://www.cs.uic.edu/CS385}}</ref>，[[罗格斯大学]]<ref>{{cite web| url = http://www.cs.rutgers.edu/~iftode/cs416_2008.html| title = 01:198:416: Operating Systems Design| accessdate = 2010-02-05| archive-url = https://www.webcitation.org/69YIv0QYe?url=http://www.cs.rutgers.edu/~iftode/cs416_2008.html| archive-date = 2012-07-30| dead-url = yes}}</ref>，纽约大学。

[[中国]]的[[清华大学]]<ref>{{cite web| url = http://os.cs.tsinghua.edu.cn/oscourse| title = FrontPage - OS Teaching Wiki| accessdate = 2010-03-18| archive-date = 2012-07-30| archive-url = https://www.webcitation.org/69YIwMunN?url=http://os.cs.tsinghua.edu.cn/oscourse| dead-url = no}}</ref>,天津大学。

[[以色列]]的[[內蓋夫本-古里安大學]]<ref>{{cite web| url = http://www.cs.bgu.ac.il/~os122/Main| title = Operating Systems - 2012/Spring - Main| accessdate = 2012-03-26| archive-date = 2021-09-21| archive-url = https://web.archive.org/web/20210921163416/https://www.cs.bgu.ac.il/~os122/Main}}</ref>。

[[印度]]的印度理工学院孟买校区、印度理工学院马德拉斯校区和印度理工学院布巴内斯瓦尔校区。

[[瑞典]]的[[林奈大学]]<ref>{{cite web| url = https://coursepress.lnu.se/kurs/operativsystem/| title = 1DV201: Operating system| accessdate = 2013-03-14| archive-date = 2022-04-01| archive-url = https://web.archive.org/web/20220401073927/https://coursepress.lnu.se/kurs/operativsystem/}}</ref>。

[[新西兰]]的[[奥塔哥大学]]<ref>{{cite web| url = http://www.cs.otago.ac.nz/cosc440/| title = COSC440: Advanced Operating system| accessdate = 2015-07-14| archive-date = 2022-02-09| archive-url = https://web.archive.org/web/20220209173604/http://www.cs.otago.ac.nz/cosc440/}}</ref>。

[[阿根廷]]的[[国立科尔多瓦大学]]<ref>{{cite web| url = http://www.famaf.proed.unc.edu.ar/course/view.php?id=171| title = SistOp14: Operating Systems| accessdate = 2015-08-06}}</ref>和{{tsl|en|National University of Río Cuarto||National University of Río Cuarto}}<ref>{{cite web| url = http://dc.exa.unrc.edu.ar/moodle/course/view.php?id=4| title = Operating Systems| accessdate = 2015-08-06}}{{Dead link|date=2020年1月 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>。

[[智利]]的费德里科圣玛利亚理工大学。

[[意大利]]的摩德纳大学<ref>{{cite web| url = http://www.ingmo.unimore.it/site/home/didattica/insegnamento.html?P0_cds_cod=20-262&P0_aa_ord_id=2009&P0_pds_cod=20-262-1&P0_aa_off_id=2017&P0_lang=ita&P0_ad_cod=IIM-36&P0_aa_corso=1&P0_fac_id=10005&P0_coorte=2017&P0_pagpre=880010930| title = Progettazione di Sistemi Operativi| access-date = 2017-10-09| archive-date = 2021-09-21| archive-url = https://web.archive.org/web/20210921112113/https://www.ingmo.unimore.it/site/home/didattica/insegnamento.html?P0_cds_cod=20-262&P0_aa_ord_id=2009&P0_pds_cod=20-262-1&P0_aa_off_id=2017&P0_lang=ita&P0_ad_cod=IIM-36&P0_aa_corso=1&P0_fac_id=10005&P0_coorte=2017&P0_pagpre=880010930}}</ref>和[[巴勒莫大学]]<ref>{{cite web| url = https://classroom.google.com/c/MjQyMjM4ODM5| title = Sistemi Operativi|access-date= 2015-10-18}}</ref>。

[[伊朗]]的[[德黑兰大学]]<ref>{{cite web| url =https://cecm.ut.ac.ir/course/view.php?id=2475| title =Operating Systems instructed by Dr. Mehdi Kargahi}}{{Dead link}}</ref>。

[[巴西]]的[[米纳斯吉拉斯联邦大学]]<ref>{{cite web| url = http://homepages.dcc.ufmg.br/~cunha/teaching/20132/os.html| title = DCC605: Sistemas Operacionais| accessdate = 2015-11-16| archive-date = 2021-09-21| archive-url = https://web.archive.org/web/20210921163413/https://homepages.dcc.ufmg.br/~cunha/teaching/20132/os.html}}</ref>。

[[臺灣]]的[[國立臺灣大學]]<ref>{{cite web |title=課程大綱 |url=https://nol.ntu.edu.tw/nol/coursesearch/print_table.php?course_id=902%2036700&class=01&dpt_code=9020&ser_no=86710&semester=109-2 |access-date=2023-03-20 |archive-date=2023-03-20 |archive-url=https://web.archive.org/web/20230320094818/https://nol.ntu.edu.tw/nol/coursesearch/print_table.php?course_id=902%2036700&class=01&dpt_code=9020&ser_no=86710&semester=109-2 |dead-url=no }}</ref>
{{div col end}}

== 實際應用 ==

* [https://www.trustkernel.com/ TrustKernel] {{Wayback|url=https://www.trustkernel.com/ |date=20220429230311 }}的T6<ref>{{cite web|url=https://www.trustkernel.com/en/products/tee/t6.html|title=T6: TrustZone Based Trusted Kernel|accessdate=2015-01-12|archive-date=2021-10-29|archive-url=https://web.archive.org/web/20211029203221/https://www.trustkernel.com/en/products/tee/t6.html}}</ref>安全内核是一个xv6 ARM移植的操作系统，已经部署到中国的许多安全手机上。

== 参考文献 ==
{{reflist|30em}}

== 外部链接 ==
* [https://github.com/mit-pdos/xv6-public xv6源代码] {{Wayback|url=https://github.com/mit-pdos/xv6-public |date=20220510213822 }}
* [https://github.com/mit-pdos/xv6-book xv6 book源代码] {{Wayback|url=https://github.com/mit-pdos/xv6-book |date=20220320101549 }}
* [https://pdos.csail.mit.edu/6.828/2018/xv6/xv6-rev11.pdf xv6源代码的可打印版本] {{Wayback|url=https://pdos.csail.mit.edu/6.828/2018/xv6/xv6-rev11.pdf |date=20211209205722 }}, rev11.
* [https://pdos.csail.mit.edu/6.828/2018/xv6/book-rev11.pdf xv6：一个简单的，类Unix的教学操作系统。] {{Wayback|url=https://pdos.csail.mit.edu/6.828/2018/xv6/book-rev11.pdf |date=20210622173306 }}, xv6 book rev11.
* [http://pdos.csail.mit.edu/6.828/ 操作系统工程（6.828）] {{Wayback|url=http://pdos.csail.mit.edu/6.828/ |date=20150817073807 }}
* [https://www.trustkernel.com/en/products/tee/t6.html T6] {{Wayback|url=https://www.trustkernel.com/en/products/tee/t6.html |date=20211029203221 }}, xv6 based secure OS using ARM TrustZone.
{{FLOSS}}
{{unix-like}}

[[Category:自由作業系統]]
[[Category:类Unix系统]]
[[Category:使用MIT许可证的软件]]