On 2016-09-27 20:09, Dan Zach wrote: > בתאריך יום שלישי, 27 בספטמבר 2016 בשעה 21:01:12 UTC+3, מאת Ralf Ramsauer: >> Hi, >> >> On 09/27/2016 06:57 PM, Dan Zach wrote: >>> I tried to follow the advise in this forum and stick to vanilla kernel. >>> Jetson TK1 loses all its graphics and becomes command line only. >>> Talking to NVIDIA forum, it turned out that it is a huge task to make the >>> graphics drivers and libs to work with Vanilla kernel. >> I would also recommend to use a more recent kernel than 3.10. 3.10 was >> released in June '13 and will be EOL in June '17. Sooner or later you >> will have to upgrade to a more recent version and apparently, Nvidia is >> trying to mainline most of their stuff (except their proprietary >> graphics driver blobs...). >> >> This is not answering you question, but there's some nice work from two >> Nvidia guys [1]. These scripts create an Arch Linux rootfs that contain >> a full open source graphics stack (nouveau + mesa). Afair, they're using >> latest mainline kernel, but it's been a while that I tested those >> scripts. So actually it should be possible to get graphics working on a >> recent kernel version... >>> >>> So my question is : how hard would it be to make jailhouse running with L4T >>> kernel (based on 3.10). >> Correct me if I'm wrong, but I don't see any problem running jailhouse >> on an older kernel, besides the fact that you will have to align the >> jailhouse system configuration. >> >> Ralf >>> >>> Thanks >>> Dan >>> >> >> [1] https://github.com/NVIDIA/tegra-nouveau-rootfs > > Thanks a lot, Ralf. > I am just referring to this > https://groups.google.com/forum/#!topic/jailhouse-dev/iK7ErlhE0ok > where Jan recommends to go upstream. I never checked it doesn't actually work
Yes, there might be more complications that just making it build due to those interdependencies to PSCI: the kernel may assume it is still running on outdated U-boot. Maybe disabling CPU_IDLE like suggested will be enough. It's just that no one tried yet. > > L4T 21 kernel is still based on 3.10, but I guess NVIDIA will have to push > out a newer version soon, based on this EOL date. > The general rule is that BSP kernels are fine for early prototyping and maybe also some disposable consumer products. But for any serious, long-living things, you should really look for mainline (+ plus moderate patching / forward porting). Vendors tend to have no proper maintenance strategy for their BSPs like we can see here, apparently. Jan -- Siemens AG, Corporate Technology, CT RDA ITP SES-DE Corporate Competence Center Embedded Linux -- You received this message because you are subscribed to the Google Groups "Jailhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to jailhouse-dev+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
