[meta-intel] (no subject)

Mittal, Anuj anuj.mittal at intel.com
Mon May 27 07:24:39 PDT 2019


Hi Richard

On Mon, 2019-05-27 at 13:57 +0800, Richard Liu wrote:
> Q1: why I must set the MACHINE to“intel-corei7-64”?  my cpu is atom
> E3845 Soc, not i7, if i set it to intel-core i7, dose the kernel can
> do best performance?  I just want to build a kernel for atom(not for
> i7).  In my opinion, generic kernel is not as good as customization
> kernel.

intel-corei7-64 is a MACHINE name used by meta-intel and doesn't mean
that it is specific to i7. You can use this machine value for Atom.

> 
> Q2:  What is the latest version of the kernel supported for Atom
> E3845, can you give me the refer link?  in the former refer link, the
> kernel version is 4.14.18, can i modify it to 5.0?

I'd request that you try out the latest 4.14 on warrior (or 4.19)
instead of 4.14.18 from rocko and report back if you see issues.

linux-intel doesn't have a 5.0 recipe since it's only based on LTS
kernels. You can switch to using 5.0 linux-yocto kernel though when
using warrior branch:

PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"

> 
> Q3: I found that the kernel code was retrieved from 
> https://github.com/intel/linux-intel-lts.git,  is there any
> difference bettween intel kernel (geted from  github.com/intel/linux-
> intel-lts.git) and official kernel(download from www.kernel.org)?

linux-intel carries Intel specific patches and backports that aren't 
part of stable/mainline kernel.

> 
> Q4:  what is the difference between these branch ?  (
> root at BUILD-Server:/home/work/yocto/yocto_build/tmp/work-shared/intel-
> corei7-64/kernel-source# git branch -a) 
> 4.14/base 
> 4.14/base-yocto

There is no difference. If you compare the branches, they should be
same.

Thanks,

Anuj


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