abe@YoctoJamTest:~/jammertester_kirk/yocto/build$ bitbake-getvar PREFERRED_PROVIDER_virtual/kernel
NOTE: Starting bitbake server...
#
# $PREFERRED_PROVIDER_virtual/kernel [2 operations]
#   set /home/abe/jammertester_kirk/yocto/sources/meta-freescale/conf/machine/include/imx-base.inc:543
#     [_defaultval] "${IMX_DEFAULT_KERNEL}"
#   override[mx6-nxp-bsp]:set /home/abe/jammertester_kirk/yocto/sources/meta-engicam-nxp/conf/machine/imx6ull-microgea.conf:35
#     "linux-engicam"
# pre-expansion value:
#   "${IMX_DEFAULT_KERNEL}"
PREFERRED_PROVIDER_virtual/kernel="linux-fslc"