Minix3 fosdem2014
- 1. MINIX 3 on ARM FOSDEM 2014
- 2. MINIX 3 on ARM FOSDEM 2014 http://wiki.minix3.org/DevelopersGuide/MinixOnARM
- 3. MINIX history the 80's ●1987 Mini-UNIX is included in OSDI ●Usenet comp.os.minix
- 4. MINIX history the 90's ●1991 Linus's announces Linux on comp.os.minix ●“I'm doing a (free) operating system (just a hobby, won't be big and professional like gnu” ●1992 386BSD is released ●MINIX remains tool with a vision
- 5. MINIX history the 00's ● 2005 MINIX 3 “Usable as a serious system on resource-limited and embedded computers” ● 2008 ERC grant: Research on Really Reliable and Secure Systems Software
- 6. MINIX history ●Licensing and governance changed over time
- 7. MINIX 3.2.0 2012 ●Clang is the default compiler ●Transparent recovery from block device driver crashes in file systems, data stores... ●NetBSD libc,headers ●ELF file format
- 8. MINIX 3.2.0
- 9. MINIX 3 features ●Reliability features ●Ease of code development ●Single build system, self contained
- 10. MINIX 3 on ARM ● Features are a good fit for embedded hardware ● 2014 will not be the year of MINIX 3 on the desktop ● Commercialization/Growth
- 11. MINIX 3 BeagleBoard-Xm ● DM37XX ● Cortex-A8/armv7 ● 512M
- 12. MINIX 3 Porting
- 13. MINIX 3 Tasks ahead
- 14. MINIX 3 Tasks ahead ● Cross compilation ● Build system ● Kernel & VM ● Drivers
- 15. MINIX 3 Cross compilation ● Cross compilation ● Adding flexibility ● Headers etc ● Build order
- 16. MINIX 3 Kernel ● Kernel ● Startup ● Interrupt ● Context switching ● Timers ansic: 3036 (81.29%) asm: 699 (18.71%)
- 17. MINIX 3 VM ● Map regions to table entries ● Caching, separate I and d-cache ● TODO: using ASID...
- 18. MINIX 3 Drivers ● Very simple model ● One driver started per controller (1:1) ● Library reuse ● Missing bus drivers/protocols
- 19. MINIX 3.2.1 2013 ● MINIX 3.2.1 (BeagleBoard-xM)(Serial/MMC and Framebuffer, GPIO) ● Off to discover the world
- 20. MINIX 3.2.1 sales pitch ● BSD licensed ● Small ● Reliability ● Best of both worlds
- 21. EW demo
- 22. EW demo
- 23. EW Eco system
- 24. MINIX 3 current goals ● Work on the reliability features integrate the rest of the functionality ● Increase community involvement
- 25. MINIX 3 ARM Status git clone git.minix3.org/minix ; .cd src ; /relseasetoots/arm_release.sh
- 26. MINIX 3 ARM Status MMC Framebuffer Networking usb BeagleBoard ☺ ☺ BeagleBone ☺ ☺ WIP
- 27. MINIX 3 on ARM Future ● NetBSD type alignment ● More clang , live update, mmap ● Towards a volunteer based organization
- 28. MINIX 3 on ARM future Support more Ti hardware (including PRU) AllWinner (Olimex LIME)
- 29. Q & A keesj@minix3.org Ben Gras,Lionel Sambuc, Thomas Veerman, Arun Thomas, Thomas Cort