On 10/26/24 15:59, חיים בכר wrote:
Hi and what if the recipe is linux-xlnx then set
PREFFERED_PROVIDER_virtual/kernel = “linux-xlnx-rt”?
By the way what the different between linux-yocto and linux-xlnx?
linux-yocto (and its -rt variant) is the default kernel coming with
Yocto. linux-xlnx comes from Xilinx, with their own modifications, and
looking at meta-xilinx layer, there doesn't seem to be a recipe with the
RT patch available.
If you are not using the default kernel, then possibly the simplest
would be to create a bbappend for your kernel recipe, where you add the
patch's uri to SRC_URI (assuming it applies cleanly on the vendor's
kernel still), e.g:
SRC_URILappend = "
https://cdn.kernel.org/pub/linux/kernel/projects/rt/5.15/older/patch-5.15.36-rt41.patch.gz";
After fetching the source bitbake will extract the patch and apply it
automatically before compiling.
(If the patch doesn't apply on the xlnx kernel, then maybe Xilinx
support has some extra info on this? Adapting that patch could be a
non-trivial task)
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