machine/qemu: Allow for users to override the preferred kernel version

The linux-yocto-rt kernel has been boot tested on qemux86-64. Unlock
the preferred provider for virtual/kernel so it can be selected and
used.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>

diff --git a/meta/conf/machine/include/qemu.inc b/meta/conf/machine/include/qemu.inc
index d762d010c46e93e93f615deaed8869625d92fa67..225906b47193471c402f42a1e682bc2eca85bc33 100644 (file)
--- a/meta/conf/machine/include/qemu.inc
+++ b/meta/conf/machine/include/qemu.inc
@@ -15,7 +15,7 @@ IMAGE_ROOTFS_SIZE_ext3 ?= "280000"
 RDEPENDS_kernel-base = ""
 
 # Use a common kernel recipe for all QEMU machines
-PREFERRED_PROVIDER_virtual/kernel = "linux-yocto"
+PREFERRED_PROVIDER_virtual/kernel ?= "linux-yocto"
 PREFERRED_PROVIDER_linux-libc-headers ?= "linux-libc-headers-yocto"
 
 EXTRA_IMAGEDEPENDS += "qemu-native qemu-helper-native"