[meta-xilinx] AMP using Yocto meta-xilinx

[Elvis Dowson]

Hi Edward,

> On Nov 25, 2014, at 21:50, Edward Wingate <edwingate8 at gmail.com> wrote:
> 
> What is the difference between "virtual/kernel" and "linux-xlnx"?
> Will they both build/make the same kernel?

The linux-xlnx recipe provides virtual/kernel.

In the meta-xilinx layer, the preferred provider for the virtual/kernel is set to linux-xlnx. See the following file.

http://git.yoctoproject.org/cgit/cgit.cgi/meta-xilinx/tree/conf/machine/include/machine-xilinx-default.inc

A particular matchine configuration, e.g. zc706-zynq7 specifies it’s preferences. In this case, it includes machine-xilinx-default.inc, which pulls in the preferred provider definition for the virtual kernel:

http://git.yoctoproject.org/cgit/cgit.cgi/meta-xilinx/tree/conf/machine/zc706-zynq7.conf

This way, depending upon the selected machine configuration from multiple providers (Xilinx, TI, Freescale, etc), all one has to do is to tell bitbake to build the virtual/kernel, and it will automatically pick up the correct linux kernel recipe.

Regards,

Elvis Dowson