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xen: apply layer settings when xen DISTRO_FEATURE is enabled

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These settings are necessary for Xen and enabling them here, using the
same mechanism that is used by k8s in this layer, simplifies building
images for Xen.

- Ensure that Xen mode is enabled in QEMU.
- On ARM platforms: enable Flattened Device Tree (FDT) support.

Signed-off-by: Christopher Clark <christopher.w.clark@gmail.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
This commit is contained in:
Christopher Clark 2020-06-29 18:54:44 -07:00 committed by Bruce Ashfield
parent 87b9e054ff
commit 7f6f115d7d
3 changed files with 15 additions and 1 deletions
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6
classes/meta-virt-xen-cfg.bbclass Normal file
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@ -0,0 +1,6 @@
# We need to load the Xen meta-virt config components, only if "xen"
# is in the distro features. Since we don't know the distro flags during
# layer.conf load time, we delay using a special bbclass that simply includes
# the META_VIRT_XEN_CONFIG_PATH file.
include ${@bb.utils.contains('DISTRO_FEATURES', 'xen', '${META_VIRT_XEN_CONFIG_PATH}', '', d)}

6
conf/distro/include/meta-virt-xen.inc Normal file
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@ -0,0 +1,6 @@
# Make sure Xen mode is enabled in qemu
PACKAGECONFIG_append_pn-qemu = " xen"
# For builds for ARM platforms, enable fdt
PACKAGECONFIG_append_pn-qemu_arm = " fdt"
PACKAGECONFIG_append_pn-qemu_aarch64 = " fdt"

4
conf/layer.conf
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@ -43,8 +43,10 @@ INHERIT += "sanity-meta-virt"
# We need to load the meta-virt config components, only if "virtualization"
# is in the distro features. Since we don't know the distro flags during
# layer.conf load time, we delay using a special bbclass that simply includes
# the META_VIRT_CONFIG_PATH file, and likewise for the k8s configs
# the META_VIRT_CONFIG_PATH file, and likewise for the Xen and k8s configs
META_VIRT_CONFIG_PATH = "${LAYERDIR}/conf/distro/include/meta-virt-default-versions.inc"
META_VIRT_XEN_CONFIG_PATH = "${LAYERDIR}/conf/distro/include/meta-virt-xen.inc"
K8S_CONFIG_PATH = "${LAYERDIR}/conf/distro/include/k8s-versions.inc"
USER_CLASSES_append = " meta-virt-cfg"
USER_CLASSES_append = " meta-virt-k8s-cfg"
USER_CLASSES_append = " meta-virt-xen-cfg"