On Monday 19. August 2019 00.31.16 Adam Lackorzynski wrote: > Hi Paul, > > UX is an interesting way of virtualizing a kernel and gives interesting > insights into both Fiasco and Linux. I guess with some work it would be > well possible to make this work on MIPS.
After writing my message, I did think of pursuing a simpler, iterative approach to making the kernel run as a Linux process, ultimately employing most of the same techniques but without trying to adapt the existing UX code. > But, before going on this endeavor what about QEMU? It should be much > quicker and simpler to run it through QEMU, This did occur to me: after all, what is mostly needed is a way of emulating the privileged instructions, and QEMU is a general framework for achieving this. (The documentation isn't completely clear about whether I would end up emulating everything even on the same architecture.) So, I have built Fiasco and L4Re for the MIPS Malta platform, and it seems to be possible to launch a system using the Makefile. For instance: make O=mybuild qemu E=hello However, I imagine that either a graphical example is needed where the SDL interface for QEMU is being used, or that some options are required to get QEMU to use a simple serial console. There appear to be some options and the possibility to do something like this: make O=mybuild qemu E=hello QEMU_OPTIONS='-nographic' Maybe even the machine type is necessary amongst the options as well. This doesn't seem to produce output, though. I have to ask: what do people actually use when developing L4Re and Fiasco? Paul _______________________________________________ l4-hackers mailing list l4-hackers@os.inf.tu-dresden.de http://os.inf.tu-dresden.de/mailman/listinfo/l4-hackers
