On Fri, 26 Feb 2021 at 16:06, Michael Grunditz <[email protected]> wrote: > > On Thu, 25 Feb 2021 at 13:46, Michael Grunditz > <[email protected]> wrote: > > > > On Thu, 25 Feb 2021 at 00:34, Michael Grunditz > > <[email protected]> wrote: > > > > > > Hi, > > > > > > I am trying to boot a genode uImage (tftp,bootm) but gets ATAG not > > > compiled in. Do I need to patch out that error from u-boot , or is > > > there another workaround? > > > > A little follow up. I used bootelf -p address. That started the kernel > > but end up in: > > > > Kernel: Unknown cpu exception EC=0 ISS=0 ip=0xffffffc000040cb > > > > It is stack management code. > I modded my cmd/boot.c to allow booting aarch64 binaries and cloned > down a new Genode source tree. Built run/log and started it with "go > 0x40010000". It worked once.. I changed ram size and uart (to match my > board) and try booting again. Nothing on serial. Then I tried to echo > a char right in the starting point crt0.s, it worked I get that char > on serial. > OK .. I recloned a new source tree , but same results. > > I can't get bootm to work even after removed the atag requirement. > > I would be very happy if someone can explain what > happens.Genode::Attached_io_mem_dataspace
I have tried to sort out bootm but it just crash. Doing "go" with a binary does work. Only issue is a exception : 0x140 that is not handled, ignoring that it starts Genode. Now on to the real stuff! I would like to copy a binary to some physical address. Is Genode::Attached_io_mem_dataspace something that I can use? It didn't crash :) and I print out the local address that makes sense. What is the best way to load a file into a dataspace? Also .. what is the best way to launch a core that isn't known to Genode? I plan to use psci directly, but if there is a more "system friendly" way I can use all the better. The thing I want to do is: Map a physical address that is above Genode ram. Copy a binary to it (64 to 32 bit switch , with RISC OS right after) Start a core with the physical address as entry point. I have tried to do it the other way around, starting Genode from RISC OS , but it seems like hopeless to have a core > 0 as primary cpu. Cheers! Michael _______________________________________________ Genode users mailing list [email protected] https://lists.genode.org/listinfo/users
