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arm-autonomy/n1sdp: Add support for building/installing alternate kernel

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For N1SDP as arm-autonomy-host, when alternate-kernel DISTRO_FEATURE is present
we build the linux-linaro-arm-rt (with PREEMPT_RT support) by setting it as the
PREFERRED_PROVIDER_alternate/kernel. As required, we set the
KERNEL_PACKAGE_NAME_pn-linux-linaro-arm-rt to kernel-rt.

Also, include the alternate kernel binary as Image-preempt-rt in the boot
partition of the generated wic image by setting the IMAGE_EFI_BOOT_FILES
variable.

Change-Id: I205caf5ef8b8d6b8a37ec3f4d0981fe8736cae63
Issue-Id: SCM-1654
Signed-off-by: Diego Sueiro <diego.sueiro@arm.com>
Signed-off-by: Jon Mason <jon.mason@arm.com>
This commit is contained in:
Diego Sueiro
2020-11-17 10:04:46 +00:00
committed by Jon Mason
parent a9cd4fc12f
commit ce9650ec84
1 changed files with 22 additions and 0 deletions
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meta-arm-autonomy/dynamic-layers/meta-arm-bsp/conf/machine/n1sdp-extra-settings.inc
+22
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@@ -38,3 +38,25 @@ do_image_wic[depends] += "xen:do_deploy"
IMAGE_EFI_BOOT_FILES += "xen-n1sdp.efi;xen.efi"
IMAGE_EFI_BOOT_FILES += "${XEN_MOD_DEVICETREE_DTBS}"
# When alternate-kernel DISTRO_FEATURE is present we set the linux-linaro-arm-rt
# by default
PREFERRED_PROVIDER_alternate/kernel ?= "\
${@bb.utils.contains('DISTRO_FEATURES', 'alternate-kernel', \
'linux-linaro-arm-rt', '', d)}"
KERNEL_PACKAGE_NAME_alternate/kernel ?= "kernel-rt"
# When alternate-kernel DISTRO_FEATURE is present we set the kernel-rt by
# default
KERNEL_PACKAGE_NAME_pn-linux-linaro-arm-rt = "\
${@ d.getVar('KERNEL_PACKAGE_NAME_alternate/kernel') \
if bb.utils.contains('DISTRO_FEATURES', 'alternate-kernel', True, False, d) \
else 'kernel' }"
# Relative path from DEPLOY_DIR_IMAGE of the Kernel PREEMPT_RT deployed Image
KERNEL_RT_IMAGE ?= "kernel-rt/Image-n1sdp.bin;Image-preempt-rt"
# Only include the Kernel PREEMPT_RT Image if we are building with
# alternate-kernel DISTRO_FEATURE
IMAGE_EFI_BOOT_FILES += "\
${@ d.getVar('KERNEL_RT_IMAGE',d) or '' \
if bb.utils.contains('DISTRO_FEATURES', 'alternate-kernel', True, False, d) and \
d.getVar('PREFERRED_PROVIDER_alternate/kernel') else ''}"