[Bug 1659618] [NEW] Enable ARM64 support in kexec-tools

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Ubuntu Foundations Team Bug Bot (crichton):

[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 at 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/kexec-tools
 * 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: Confirmed

** Affects: kexec-tools (Ubuntu Xenial)
     Importance: Undecided
         Status: Confirmed

** Affects: kexec-tools (Ubuntu Yakkety)
     Importance: Undecided
         Status: Confirmed

** Affects: kexec-tools (Debian)
     Importance: Unknown
         Status: Unknown


** Tags: patch
-- 
Enable ARM64 support in kexec-tools
https://bugs.launchpad.net/bugs/1659618
You received this bug notification because you are a member of Ubuntu Sponsors Team, which is subscribed to the bug report.