On 01.02.19 04:58, [email protected] wrote:
Jan,
Thanks for the advice.
I went and downloaded Linux 4.14.73 and recompiled with CONFIG_UIO=y and
CONFIG_UIO_PCI_GENERIC=y (`make -j4`, `make modules_install`, and `make
install`). I was then able to build uio_ivshmem.ko.
However, now when I build Jailhouse, I hit the following errors:
WARNING: "lapic_timer_frequency" [/root/jailhouse/driver/jailhouse.ko]
undefined!
WARNING: "ioremap_page_range" [/root/jailhouse/driver/jailhouse.ko] undefined!
Somehow, I took a step backwards.
This thread (https://groups.google.com/forum/#!topic/jailhouse-dev/URt-HG36X1o)
mentions that I should set CONFIG_KALLSYMS_ALL. I tried that, but after
rebuilding and installing, I still get the above errors.
The kernel that came with Jailhouse Images didn't have CONFIG_KALLSYMS_ALL, and
I was able to build Jailhouse just fine. Why is it complaining now, after
setting CONFIG_UIO and recompiling?
You likely want https://github.com/siemens/linux/commits/jailhouse-enabling/4.14
or the 4.19-variant that is jailhouse-prepared. That's what jailhouse-images is
building for you.
Do I need to also update the linux-headers package somehow? I tried `make
headers_install` and `make headers_install_all`, but that didn't seem to do
anything.
Or I need to do something like this?
https://unix.stackexchange.com/questions/270123/how-to-create-usr-src-linux-headers-version-files
If you just rebuild the kernel that the original image was using, only adding
UIO, you should be fine with keeping the jailhouse kernel package untouched. But
the cleanest way is reproducing the image via jailhouse-images after adjusting
the parameter you want to change (CONFIG_UIO, ROOTFS_EXTRA etc.).
Jan
--
Siemens AG, Corporate Technology, CT RDA IOT 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 [email protected].
For more options, visit https://groups.google.com/d/optout.
