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[IMPACT]
* kexec-tools in Xenial (16.04) currently does not support ARM64 architecture.
* Backport support for ARM64 arch from upstream
https://github.com/horms/kexec-tools
* Majority of the patches are contained in kexec/arch/arm64/ except for one
patch that impacts
purgatory and common device tree routines.
[TEST CASE]
* I built kexec-tools for ARM64 and tested it on HW using the following
testcase:
$ sudo kexec -l /boot/vmlinuz-<version>-generic
--initrd=/boot/initrd.img-<version>-generic
--command-line="root=UUID=<uuid> ro vt.handoff=7"
$ sudo kexec -e
* I was able to kexec the new kernel successfully.
* [ 6702.357899] kexec_core: Starting new kernel
[ 0.000000] Booting Linux on physical CPU 0x200
[ 0.000000] Linux version <version>-generic (buildd@bos01-arm64-008) (gcc
version 5.4.0
20160609 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) )
[ 0.000000] Boot CPU: AArch64 Processor [510f8000]
[REGRESSION POTENTIAL]
* Since patches are confined to arm[64] there is a low overall risk of
regression.
[OTHER INFO]
* You can find a Xenial kexec-tools package built for AMD64, i386 and ARM64 in
my PPA
https://launchpad.net/~manjo/+archive/ubuntu/devtools/
* This package is built using the Xenial source package for kexec-tools with
ARM64 enablement
patches applied.
* Please pull the changes from my PPA package and integrate into Ubuntu Xenial
kexec-tools after
review.
** Affects: kexec-tools (Ubuntu)
Importance: High
Assignee: Louis Bouchard (louis-bouchard)
Status: New
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[SRU] [Xenial] Enable ARM64 support in kexec-tools
https://bugs.launchpad.net/bugs/1659618
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