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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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1 xv6_rpi_port is based on MIT xv6 (http://pdos.csail.mit.edu/6.828/2012/v6.html).
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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2 It is ported from x86 to armv6 in Raspberry Pi (RPI). The rpi port follows
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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3 the coding style of xv6 as much as possible to hide the architectural
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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4 differences between x86 and armv6. The port is not for multiprocessor yet
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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5 as RPI has only a single processor.
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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6
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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7 ACKNOWLEDGEMENTS
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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8
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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9 xv6_rpi_port is inspired by MIT xv6 and Alex Chadwick's Baking Pi
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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10 Tutorials (http://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/os/).
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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11 Most architecture-independent code is directly from MIT xv6 though sometimes
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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12 minor adjustments were done to explicitly initialize data structures.
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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13 Some C code such as the GPU driver is based on the understanding of
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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14 Alex Chadwick's assembly code.
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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15
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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16 Some code for mmu and trap handling is based on the understanding of the
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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17 Plan 9 bcm port (http://plan9.bell-labs.com/sources/plan9/sys/src/9/bcm/),
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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18 though the assembly code was completely rewritten.
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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19 David Welch's RPI code (https://github.com/dwelch67/raspberrypi) is also
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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20 inspiring for trap handling and uart driver.
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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21
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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22 If you spot errors or suggest improvements, please send email to
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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23 Zhiyi Huang (hzy@cs.otago.ac.nz).
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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24
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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25 Building xv6_rpi_port:
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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26
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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27 Suppose you have checked out the source with:
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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28
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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29 $ git clone https://github.com/zhiyihuang/xv6_rpi_port.git
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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30
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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31 On an RPI installed with Raspbian, type 'make' to make 'kernel.img'.
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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32
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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33 Copy 'kernel.img' to /boot with a different name:
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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34 # cp kernel.img /boot/kernel-xv6.img
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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35
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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36 Comment out the entry 'kernel=kernel_36y.img' and add a new entry
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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37 'kernel=kernel-xv6.img' to /boot/config.txt.
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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38
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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39 Reboot the machine.
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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40
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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41 Building xv6 user programs and FS (You don't need this step if you
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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42 don't change the user programs):
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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43
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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44 cd uprogs
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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45 make initcode
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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46 make fs.img
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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47
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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48 copy 'initcode' and 'fs.img' to the directory 'source'
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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49
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Tatsuki IHA <innparusu@cr.ie.u-ryukyu.ac.jp>
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50
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